Site Cleanup Plan

SITE CLEANUP PLAN

Horton Landing Park Emeryville, California EPA Project No. BF-96921301

March 2010

Prepared for: City of Emeryville Redevelopment Agency 1333 Park Avenue Emeryville, California

SITE CLEANUP PLAN

Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

March 2010

Prepared for:

City of Emeryville Redevelopment Agency 1333 Park Avenue Emeryville, California

Prepared by:

Erler & Kalinowski, Inc. 1870 Ogden Drive Burlingame, California

EKI A90007.00 Erler & Kalinowski, Inc.

Consulting Engineers and Scientists 1870 Ogden Drive Burlingame, CA 94010 (650) 292-9100 Fax: (650) 552-9012

5 March 2010

Ms. Karen Toth California Environmental Protection Agency Department of Toxic Substances Control 700 Heinz Avenue Suite 200 Berkeley, California 94710

SUBJECT: Site Cleanup Plan Horton Landing Park, Emeryville, California (EKI A90007.00)

Dear Ms. Toth:

Erler & Kalinowski, Inc. (“EKI”) is pleased to present this Site Cleanup Plan (“SCP”) for the Horton Landing Park property (“Site”), located in Emeryville, California. This report is being submitted on behalf of our client, the City of Emeryville Redevelopment Agency (“Agency”). This SCP describes the nature and extent of contamination at the Site, remedial action objectives (“RAOs”), and selected Site-specific cleanup goals to meet RAOs, includes a description and comparison of cleanup alternatives, and recommends a cleanup alternative for the Site.

This SCP incorporates DTSC comments on the Draft Site Cleanup Plan, dated November 2009 provided by email on 1 December 2009. Included in this SCP are plans that describe the procedures required in order to implement the proposed remedial alternative. These plans serve to provide guidance for health and safety measures to be employed during soil remedial activities. The following is a list of the plans included in this SCP:

• Traffic Control and Waste Transportation Plan; • Decontamination Plan; • Dust Control Plan; • Perimeter Air Monitoring Plan; • Storm Water Pollution Prevention Plan; • Soil Cleanup Sampling and Analysis Plan (“SAP”); • Quality Assurance Project Plan (“QAPP”); and • EKI Site-Specific Health and Safety Plan (“HSP”).

Southern California Office • (626) 432-5900 • Fax (626) 432-5905 • Colorado Office • (303) 796-0556 • Fax (303) 796-0546

Ms. Karen Toth SCP for Horton Landing Park 5 March 2010 Page 2

It is understood that the selected cleanup contractor will be required per the Emeryville bidding documents to provide their own HSP and plan addendums, if necessary, as specified in the plans.

We are pleased to have the opportunity to work with you on this project. Please call if you have any questions or wish to discuss these matters in greater detail (650-292-9100).

Very truly yours,

ERLER & KALINOWSKI, INC.

Earl D. James, P.G. Vice President

Claudia A. Cuadrado, P.E. Project Engineer

Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

1.0 INTRODUCTION...... 1-1 1.1 Site Description and History ...... 1-1 1.2 Site Background ...... 1-2 1.3 Site Geology...... 1-3 1.4 Site Hydrogeology ...... 1-4 1.5 Planned Future Site Use ...... 1-4 1.6 Site Cleanup Plan Organization ...... 1-5 2.0 SUMMARY OF INVESTIGATIONS RESULTS ...... 2-1 2.1 Soil Analytical Results ...... 2-1 2.1.1 Soil Screening Criteria ...... 2-1 2.1.2 Metals ...... 2-1 2.1.2.1 Arsenic ...... 2-1 2.1.2.2 Barium...... 2-2 2.1.2.3 Cadmium ...... 2-2 2.1.2.4 Cobalt ...... 2-2 2.1.2.5 Copper...... 2-3 2.1.2.6 Lead...... 2-3 2.1.2.7 Zinc ...... 2-3 2.1.3 TPH ...... 2-3 2.1.4 Soil Analytical Results for SVOCs ...... 2-4 2.1.5 Soil Analytical Results for PCBs, Chlorinated Herbicides, and Organochlorine Pesticides ...... 2-4 2.1.6 Soil Analytical Results for VOCs ...... 2-5 2.2 Groundwater Analytical Results ...... 2-5 2.2.1 Groundwater Screening Criteria ...... 2-5 2.2.2 Metals ...... 2-5 2.2.3 TPH and VOCs ...... 2-6 2.3 Additional Analytical Results ...... 2-7 2.4 Waste Classification ...... 2-7 2.5 Identified Chemicals of Potential Concern ...... 2-8 3.0 IDENTIFICATION OF REMEDIAL ACTION OBJECTIVES ...... 3-1 3.1 Identification of Potential ARARs and TBCs ...... 3-1 3.2 Identification of Remedial Action Objectives ...... 3-2 3.3 Site-Specific Remedial Goals ...... 3-2 3.3.1 Metal Background Concentrations ...... 3-2 3.3.1.1 Calculation of a Site-Specific Arsenic Background Concentration ...... 3-3

EKI A90007.00 i Horton Landing Park Emeryville, California

Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

3.3.1.1.1 Approach: Sample Selection ...... 3-3 3.3.1.1.2 Approach: Population Analysis ...... 3-3 3.3.1.1.3 Results ...... 3-4 3.3.2 Remedial Goal for Arsenic ...... 3-5 3.3.3 Remedial Goal for Lead ...... 3-6 3.3.4 Remedial Goals for TPH-d and Oil and Grease ...... 3-6 3.3.5 Remedial Goal for Aroclor 1260 ...... 3-6 3.3.6 Remedial Goal for Dieldrin ...... 3-7 4.0 IDENTIFICATION AND ANALYSIS OF REMEDIAL ACTION ALTERNATIVES 4-1 4.1 Alternative 1: No Action ...... 4-1 4.1.1 Effectiveness ...... 4-2 4.1.2 Implementability ...... 4-2 4.1.3 Cost ...... 4-2 4.1.4 Compliance with ARARs and TBCs ...... 4-2 4.2 Alternative 2: Excavation and Off-Site Disposal ...... 4-2 4.2.1 Effectiveness ...... 4-2 4.2.2 Implementability ...... 4-3 4.2.3 Cost ...... 4-3 4.2.4 Compliance with ARARs and TBCs ...... 4-4 4.3 Alternative 3: Limited Excavation with Off-Site Disposal and Capping ...... 4-4 4.3.1 Effectiveness ...... 4-4 4.3.2 Implementability ...... 4-5 4.3.3 Cost ...... 4-5 4.3.4 Compliance with ARARs and TBCs ...... 4-6 4.4 Comparison of Alternatives ...... 4-6 5.0 SITE CLEANUP PLAN ...... 5-1 5.1 Site Cleanup Description ...... 5-1 5.2 Preparatory Activities ...... 5-2 5.2.1 Site Specific Plans to be Submitted Prior to Site Cleanup Activities ...... 5-3 5.2.1.1 Summary of Traffic Control and Waste Transportation Plan ..... 5-3 5.2.1.2 Summary of Decontamination Plan ...... 5-4 5.2.1.3 Summary of Dust Control Plan ...... 5-4 5.2.1.4 Summary of Perimeter Air Monitoring Plan ...... 5-4 5.2.1.5 Summary of Storm Water Pollution Prevention Plan ...... 5-4 5.2.1.6 Summary of the EKI Site-Specific Health and Safety Plan ...... 5-5 5.2.1.7 Pre-Approval of Waste Disposal Classifications ...... 5-5 5.2.2 Permits ...... 5-6

EKI A90007.00 ii Horton Landing Park Emeryville, California

Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

5.2.3 Bidding ...... 5-6 5.2.4 Utility Clearance ...... 5-7 5.2.5 Initial Site Preparation ...... 5-7 5.2.6 Site Security ...... 5-7 5.3 Site Cleanup Activities ...... 5-7 5.3.1 Excavation Equipment and Methods ...... 5-7 5.3.2 Air Monitoring ...... 5-8 5.3.3 Transportation and Off-Site Disposal of Excavated Soils ...... 5-8 5.3.4 Backfill and Site Restoration ...... 5-9 5.3.4.1 Fill Sampling Specifications ...... 5-9 5.3.4.2 Fill Sampling Procedures ...... 5-10 5.4 Site Cleanup Completion Report ...... 5-10 5.5 Deed Restriction...... 5-10 5.6 Capping of the Site...... 5-11 6.0 PROJECT SCHEDULE ...... 6-1 7.0 SITE MANAGEMENT AND POST-SITE CLEANUP OPERATIONS ...... 7-1 8.0 REFERENCES ...... 8-1

LIST OF TABLES

Table 1-1 Summary of Laboratory Analytical Methods for Soil and Grab Groundwater Samples Table 2-1 Summary of Soil Analytical Results for Metals Table 2-2 Summary of Soil Analytical Results for TPH Table 2-3 Summary of Soil Analytical Results for SVOCs Table 2-4 Summary of Soil Analytical Results for PCBs, Organochlorine Pesticides, and Herbicides Table 2-5 Summary of Soil Analytical Results for VOCs Table 2-6 Summary of Groundwater Analytical Results for Metals Table 2-7 Summary of Groundwater Analytical Results for TPH and VOCs Table 2-8 Summary of WET and TCLP Analytical Results for Metals Table 3-1 List of Potential ARARs and TBCs Table 3-2 Proposed Site-Specific Soil Remedial Goals Table 4-1 Analysis of Remedial Action Alternatives Table 4-2 Summary of Estimated Costs of Remedial Action Alternatives

EKI A90007.00 iii Horton Landing Park Emeryville, California

Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

LIST OF FIGURES

Figure 1-1 Site Location Map Figure 1-2 2009 Aerial Photo and Neighboring Properties Figure 2-1 Existing Sampling Locations Figure 3-1 Cumulative Frequency Plots for Modeling Metal Populations Figure 3-2 Probability Plot of Horton Landing Park Arsenic Data Figure 3-3 Probability Plot of Horton Landing Park Arsenic Data and Simulation Figure 3-4 Probability Plot of the Background Arsenic Simulation Population Figure 3-5 Identified Primary COPCs in Soil Figure 5-1 Lateral and Vertical Extents of Excavation

LIST OF APPENDICES

Appendix A Supporting Information for Estimated Costs of Potential Remedial Action Alternatives Appendix B Traffic Control and Waste Transportation Plan Appendix C Decontamination Plan Appendix D Dust Control Plan Appendix E Perimeter Air Monitoring Plan Appendix F Storm Water Pollution Prevention Plan Appendix G Soil Sampling and Analysis Plan Appendix H Quality Assurance Project Plan Appendix I EKI Site Specific Health and Safety Plan

EKI A90007.00 iv Horton Landing Park Emeryville, California

1.0 INTRODUCTION

Erler & Kalinowski, Inc. (“EKI”) has prepared this Site Cleanup Plan (“SCP”) for the Horton Landing Park property (the “Site”), located in Emeryville, California for our client, the City of Emeryville Redevelopment Agency (“Agency”). This report has been prepared by EKI on behalf of the Agency in accordance with our agreement dated 7 May 2009. It is our understanding that the Agency is interested in redeveloping the Site as part of the Emeryville Greenway that extends to the north. The Site will be utilized for the eastern landing of a bridge across the railroad tracks to the Bay Street development. As part of the redevelopment process, the Agency is planning to conduct limited cleanup of contaminated soil at the Site as necessary to protect human health and the environment. The Site was historically used as a rail spur and nearby sites were generally used for industrial or manufacturing purposes.

This non-time critical removal action will be funded partially under a United States Environmental Protection Agency (“U.S. EPA”) Brownfields assessment grant for hazardous materials (grant number BF-96921301) and the Agency. The Agency is acting as the Lead Agency under a Memorandum of Understanding (“MOU”) with the California Department of Toxic Substances Control (“DTSC”) and the San Francisco Bay Regional Water Quality Control Board (“SFRWQCB”). Ms. Susan G. Colman is acting as Brownfields Site Manager (“Site Manager”) who will provide regulatory and technical support to the Agency; and the Agency will administer the assessment grant. The Site Manager will confer with the DTSC for review and approval of plans to be submitted with the SCP.

1.1 Site Description and History

The Site occupies approximately 1.2 acres in a mixed residential and commercial area, and is located southwest of the intersection of Stanford Avenue and Horton Street in Emeryville, California (Figure 1-1). The Site lies approximately 1,800 feet east of the San Francisco Bay shoreline. Temescal Creek cuts across the southern end of the Site and drains westward into San Francisco Bay (Figure 1-2). The Site is bordered on the north by City of Emeryville Public Works Facility, on the west by UPRR tracks, on the south by the Sherwin-Williams facility, and on the east by the Novartis Vaccines & Diagnostics facilities (a parking structure, parking lots, the PDU Building and Building H) and the Novartis Easement Parcel (Figure 1-2). The Agency has an easement for public pedestrian and bicycle access through the Novartis Easement Parcel to improve the area. The Site was formerly used as a railroad spur and is currently undeveloped. A paved parking lot covers part of the Site.

In the early 1900s, part of the Site was a portion of the New California Jockey Club Stables. The rest of the Site had been developed by the Southern Pacific Railroad and contained the Shell Mound Station and portions of three railroad spurs from the main line of railroad tracks that were located to the west of the Site. Between the early 1900s and continuing to the late 1960s, the Site was generally used as a railroad spur. By 1969, some of the railroad tracks that crossed through the Site were removed and an open culvert was constructed for Temescal Creek.

EKI A90007.00 1-1 Horton Landing Park Emeryville, California

Between the late 1980s and early 1990s, the northern area of the Site appears to have ceased to be used for railroad spur tracks. Parts of the remnants of the railroad tracks in this area of the property were removed some time between 2003 and 2005. A parking lot was constructed north of Temescal Creek by the late 1990s. One set of old railroad tracks that cross Temescal Creek from the Sherwin-Williams facility located to the south of the Site are still in place.

Historical uses of surrounding properties have included: (a) New California Jockey Club Race Track from the early 1900s until 1912, (b) additional railroad spurs, (c) Shell Mound Park from the early 1900s until approximately 1929, (d) formulation, packaging, and distribution of inorganic and organochlorine pesticides and insecticides by the Sherwin-Williams from approximately 1929 to 1964, (e) production of iron oxide pigments and mixing of other pigments by C. K. Williams & Co., Pfizer, Inc., Pfizer Pigments, Inc., Harcros Pigments, Inc. and Elementis Pigments, Inc. from 1929 through 1988, (f) manufacturing of calculators by the Marchant Calculating Machine Company, Inc. in the early 1950s, (g) specialty tool factory in the late 1960s (h) an electrical contractor warehouse and an asbestos products warehouse in the early 1950s, (i) an office, laboratory, and warehouse associated with Shell Development Company (“Shell”) in Building H probably from the 1940s until 1972, (j) an office and warehouses associated with Shell in buildings north of Building H probably from at least 1967 until 1972, (k) a paper and carton warehouse in the PDU and Rifkin Buildings at least from the early 1950s to the late 1960s, and (l) the Sherwin-Williams facility that historically manufactured lead arsenate pesticides from the 1920s until the late 1940s, oil-based coating products until 1987, and water-based paint products from the late 1980s until 2008. The Sherwin-Williams facility is now closed and awaiting redevelopment.

Current uses of properties surrounding the Site include: (1) the City of Emeryville Public Works Facility to the north, (2) the Novartis facilities to the east, (3) the Sherwin-Williams facility to the south, and (4) the Bay Street Project Area across the UPRR tracks to the west.

The Sherwin-Williams property, located to the south of the Site, is vacant and most of the structures have been demolished, but groundwater extraction and treatment activities are currently being conducted.

1.2 Site Background

The Agency is preparing the Site for redevelopment as a park. As part of the process, EKI identified past uses of the Site and adjacent properties that may have resulted in releases of chemicals to soil and groundwater in the Site Use History report, dated 24 February 2009 (“Site Use History Report”; EKI, 2009a). EKI conducted a soil and groundwater investigation in October and November 2002, and concentrations of chemicals detected in soil and groundwater were compared with applicable screening criteria to identify preliminary chemicals of potential concern (“COPCs”) in the Analysis of Brownfield Cleanup Alternatives (“ABCA,” EKI, 2009b). The results and conclusions of October and November 2002 soil and groundwater investigation were described in the Draft Summary of Soil and Groundwater Sampling Conducted in the Vicinity of Proposed Building 13 and Horton Street Landing Linear Park dated 17 December 2002 and the Summary of Soil and Groundwater Sampling Conducted in the Vicinity of Proposed

EKI A90007.00 1-2 Horton Landing Park Emeryville, California

Horton Street Landing Linear Park dated 2 May 2003 and were also summarized in the ABCA (EKI, 2009b). EKI conducted an additional soil and groundwater investigation in May 2009. The results and conclusions of the May 2009 soil and groundwater investigation were described in the Soil and Groundwater Investigation Data Report, dated 20 July 2009 (EKI, 2009c). Table 1-1 provides a summary of chemical analyses for each soil and grab groundwater sample collected from the Site and the Novartis Easement Parcel submitted for analysis.

The ABCA was prepared to develop remedial action objections, to evaluate cleanup alternatives for the Site, and to recommend a cleanup alternative for the Site. The ABCA conforms to 40 CFR 300.415 of the National Oil and Hazardous Substances Pollution Contingency Plan.

1.3 Site Geology

The Site is located within the flatlands of the East Bay Alluvial Plain. The sediments of the East Bay Alluvial Plain slope westward from the Oakland-Berkeley Hills to San Francisco Bay. The predominant, regional direction of the shallow groundwater gradient follows the topography down toward the west, but gradients can be locally complex.

Based upon stratigraphic logging conducted during the 2002 and 2009 EKI investigations (EKI, 2002b, 2003, and 2009c), the shallow stratigraphy at the Site generally consists of the following units:

1. Artificial fill that consists of sands, silts, and gravels. The thickness of the fill material is generally even (approximately 3 feet thick), but ranges from approximately 2 feet (in grid area A) up to 6 feet (in grid area F at the borings located closest to Temescal Creek). Two layers of different fill materials were observed: (1) a layer approximately 1 foot thick of compacted clay-rich gravel and (2) a 2 to 3 feet thick layer of loose ballast- dominated gravel underneath; 2. Shell hash,1 a layer of predominantly shell material in the native soils, was observed in grid areas E, F, and H, which are located north and east of the former and current location of Temescal Creek, at depths ranging from approximately 2 to 5 feet bgs;

3. A layer of dry firm yellowish brown silt ranging from 3 to 9 feet in thickness underneath the shell hash in grid area H; 4. Upper Member of the Young Bay Mud that consists mainly of silty clay (black or dark gray in grid areas A through G and yellowish brown with black mottles in grid area H) with discontinuous lenses of silty sand, sand with gravel, or sand with silt and gravel located beneath the overlying fill material. The lenses of silty sand, sand with gravel, or sand with silt and gravel ranged in thickness from approximately 1.5 to at least 3 feet. It is possible that the top of the Young Bay Mud was at some time graded or that locally-

1 The presence of shell hash at the Site indicates that Native Americans may have used the Site in the past as a dump for domestic waste.

EKI A90007.00 1-3 Horton Landing Park Emeryville, California

derived Young Bay Mud was placed on top of the native Young Bay Mud to level up the Site before filling activities were conducted; and 5. Yellow brown silt or clay silt, probably the San Antonio Formation, underlies the Young Bay Mud.

1.4 Site Hydrogeology

The following discussion on the Site hydrogeology is based upon information gathered at the Bay Street Project Area, which is located to the west of the Site, across the UPRR tracks (EKI, 2007a).

Two groundwater zones are locally defined beneath the Bay Street Project Area:

• Upper-Most Saturated Zone: extends from the top of the groundwater table as measured in monitoring wells (approximately 4 to 6 feet bgs) to a depth of approximately 10 to 15 feet below the top of the groundwater water table. This zone generally consists of fill materials, including sand, clay, and debris, and sediments lying above the Bay Mud. This zone was the water-bearing unit consistently encountered during the Horton Street Landing environmental investigations conducted in 2002 and 2009; all the grab groundwater samples were collected from this zone.

• Deeper Zones: permeable units deeper than approximately 15 feet below the top of the groundwater water table, extending down to the total depth investigated to date, about 45 feet bgs. The Deeper Zones are within the Bay Mud.

The only surface water within the Bay Street Project Area is Temescal Creek. The creek runs through a concrete channel with weep holes. These holes, together with joints in the concrete liner of the channel, likely allow interaction between surface water in the channel and the shallow underlying groundwater.

Water levels in groundwater monitoring wells, storm drains, and at Temescal Creek have been periodically measured after redevelopment of the Bay Street Project Area. Groundwater elevations and surface water elevations in Temescal Creek and the storm drains vary by 2.5 feet or more with the tidal fluctuations (EKI, 2007a).

1.5 Planned Future Site Use

The Agency is planning to develop the Site as a park. Proposed park amenities might include a pedestrian bridge, a concrete path, a seat wall, and a plaza. There is no plan to include a play area or playground in the park. Portions of the Site will be overlain with between 2 to 10 feet of soil. Exposure pathways for potential receptors (i.e., park patrons and construction or maintenance workers working in the park) include inhalation of vapors and/or fugitive dust and direct contact with soil in unpaved/uncovered areas.

EKI A90007.00 1-4 Horton Landing Park Emeryville, California

1.6 Site Cleanup Plan Organization

The SCP is organized into eight sections as follows:

• Section 1.0 – Introduction • Section 2.0 – Summary of Investigations Results • Section 3.0 – Identification of Remedial Action Objectives • Section 4.0 – Identification and Analysis of Remedial Action Alternatives • Section 5.0 – Site Cleanup Plan • Section 6.0 – Project Schedule • Section 7.0 – Site Management and Cleanup Operations • Section 8.0 – References

EKI A90007.00 1-5 Horton Landing Park Emeryville, California

2.0 SUMMARY OF INVESTIGATIONS RESULTS

This section summarizes the analytical results of soil and grab groundwater samples collected from the Site and the Novartis Easement Parcel during the environmental investigations conducted by EKI in October and November 2002 and in May 2009 and identifies COPCs for the Site. Sampling locations are shown on Figure 2-1.

2.1 Soil Analytical Results

2.1.1 Soil Screening Criteria

Concentrations of chemicals detected in soil were compared with applicable screening criteria to identify COPCs. Applicable screening criteria included the California Human Health Screening Levels (“CHHSLs”) for residential soil (CAL/EPA, 2005, 2009a, and 2009b), U.S. EPA Screening Levels (“EPA-SLs”) for residential exposure (U.S. EPA, 2009b), and the California Regional Water Quality Control Board, San Francisco Bay Region’s (“SFRWQCB”) Environmental Screening Levels (“ESLs”) (SFRWQCB, 2008). Applicable ESLs include direct exposure for residential scenario (Table K-1), direct exposure for construction/trench worker scenario (Table K-3), urban area ecotoxicity criteria (Table A-1), leaching concerns (Table G), and residential gross contamination ceiling level (Table H-2). Direct exposure values for the residential and construction/trench worker scenarios for non-carcinogens are based on a hazard quotient equal to 1.

2.1.2 Metals

Analytical results of metals analyses for soil samples are presented in Table 2-1. Detected concentrations of arsenic, barium, cadmium, cobalt, copper, lead, and zinc in soil samples exceeded one or more screening criteria at one or more sampling locations. These metals are further discussed below.

The suite of metal and the metal concentrations detected in fill soil samples from the Site are generally consistent with the suite of metals and metal concentrations detected at the nearby UPRR Parcel D property, located south of the Site, to the north of the intersection of Sherwin Avenue and Halleck Street in Emeryville, California. The UPRR Parcel D property has a similar size to the Site, the site use history was also primarily a railroad spur, and has similar concentrations of metals in soil (maximum arsenic and lead concentrations of 145 mg/kg and 684 mg/kg, respectively compared to a maximum arsenic and lead concentrations at the Site of 190 mg/kg and 744 mg/kg, respectively).

2.1.2.1 Arsenic

Arsenic concentrations in soil exceeded the CHHSL, the EPA-SL for residential soil, and the ESL for direct exposure for residential scenario at all sampling locations where arsenic was detected. Arsenic concentrations detected in soil ranged from 2.67 to 190 mg/kg and exceeded

EKI A90007.00 2-1 Horton Landing Park Emeryville, California

the direct exposure for construction/trench worker scenario of 15 mg/kg in grid areas A through G. Therefore, arsenic is considered to be a COPC in soil at the Site.

2.1.2.2 Barium

Barium concentrations in soil exceeded the urban area ecotoxicity ESL of 750 mg/kg at 1 of the 25 soil samples collected from the Site and the Novartis Easement Parcel. Barium concentrations were below the CHHSL, the EPA-SL, and the ESL for residential soil (5,200 and 15,000 mg/kg, respectively). Barium concentrations detected in soil ranged from 77 to 1,020 mg/kg and exceeded the urban area ecotoxicity ESL in grid area F. Barium is not considered to be a COPC in soil at the Site because it was only detected once above the ecotoxicity ESL and also because it was not detected above the CHHSL, the EPA-SL, and the ESL for residential soil.

2.1.2.3 Cadmium

Cadmium concentrations in soil exceeded the CHHSL and the ESL for direct exposure for residential scenario of 1.7 mg/kg at 5 of the 25 soil samples collected from the Site and the Novartis Easement Parcel. None of the soil samples exceeded the EPA-SL of 70 mg/kg for cadmium. Cadmium concentrations detected in soil ranged from 2.63 to 7.12 mg/kg and exceeded the CHHSL and ESL in grid areas E and F. Although cadmium was detected above the CHHSL and the ESL for direct exposure for the residential scenario, it is not considered to be a COPC in soil at the Site because the detected concentrations were below the EPA-SL. The EPA- SL for cadmium is considered the most appropriate screening level to use for residential exposure via incidental soil ingestion because it was calculated using the oral reference dose for food listed in IRIS, while the CHHSL and ESL for residential soil for cadmium were calculated with the oral reference dose for water. In addition, the CHHSL and the ESL for cadmium were calculated using an oral slope factor published by OEHHA, which was removed from the list in 2007 whereas the EPA-SL for cadmium does not include the outdated oral slope factor. The inhalation unit risk used by U.S. EPA is slightly less conservative than the inhalation unit risk used to calculate the CHHSL and ESL for cadmium; however, this does not really make a difference because the minimum EPA-SL for cadmium is based on non-carcinogenic effects.2

2.1.2.4 Cobalt

Cobalt concentrations in soil exceeded the EPA-SL for residential soil of 23 mg/kg at 1 of the 25 soil samples collected from the Site and the Novartis Easement Parcel. Cobalt concentrations were below the CHHSL for residential soil, the ESL for residential soil, and the urban area ecotoxicity ESL (660, 910, and 40 mg/kg, respectively). Cobalt concentrations detected in soil ranged from 4.7 to 28.8 mg/kg and exceeded the EPA-SL for residential soil in grid area E. Cobalt is not considered to be a COPC in soil at the Site because it was only detected once above

2 The EPA-SL for cadmium based on carcinogenic effects is 1,800 mg/kg. If the more conservative inhalation unit risk value used to calculate the CHHSLs and ESLs is used, then the EPA-SL for cadmium based on carcinogenic effects would be 770 mg/kg, which is an order of magnitude greater than the EPA-SL for cadmium based on non- carcinogenic effects (70 mg/kg).

EKI A90007.00 2-2 Horton Landing Park Emeryville, California

the EPA-SL for residential soil and also because it was not detected above the CHHSL and the ESL for residential soil.

2.1.2.5 Copper

Copper concentrations in soil exceeded the urban area ecotoxicity ESL of 230 mg/kg at 1 of the 25 soil samples collected from the Site and the Novartis Easement Parcel. Copper concentrations were below the CHHSL, the EPA-SL, and the ESL for residential soil (3,000, 3,100, and 31,000 mg/kg, respectively). Copper concentrations detected in soil ranged from 10.4 to 416 mg/kg and exceeded the urban area ecotoxicity ESL in grid area F. Copper is not considered to be a COPC in soil at the Site because it was only detected once above the ecotoxicity ESL and also because it was not detected above the CHHSL, the EPA-SL, and the ESL for residential soil.

2.1.2.6 Lead

Lead concentrations in soil exceeded the CHHSL for residential soil of 80 mg/kg at 17 of the 53 soil samples collected from the Site and the Novartis Easement Parcel, the urban area ecotoxicity ESL of 200 mg/kg at 7 of the 53 samples, the ESL for residential soil of 260 mg/kg at 5 of the 53 soil samples, and exceeded the EPA-SL for residential soil of 400 mg/kg at 3 of the 53 soil samples. Lead concentrations detected in soil ranged from 3.99 to 744 mg/kg and exceeded the ESL for residential soil in grid areas D, E and F. Therefore, lead is considered to be a COPC in soil at the Site.

2.1.2.7 Zinc

Zinc concentrations in soil exceeded the urban area ecotoxicity ESL of 600 mg/kg at 4 of the 25 soil samples collected from the Site and the Novartis Easement Parcel. Zinc concentrations were below the CHHSL, the EPA-SL, and the ESL for residential soil (23,000 mg/kg). Zinc concentrations detected in soil ranged from 25.2 to 1,060 mg/kg and exceeded the urban area ecotoxicity ESL in grid areas E and F. Although zinc was detected above the ecotoxicity ESL, it is not considered to be a COPC in soil at the Site because it was not detected above the CHHSL, the EPA-SL, and the ESL for residential soil.

2.1.3 TPH

Analytical results for total petroleum hydrocarbons (“TPH”) for soil samples are presented in Table 2-2. CHHSLs and EPA-SLs are not available for TPH. ESLs for TPH are available for gasolines, middle distillates, and residual fuels. The ESL for gasolines was selected as the ESL for TPH as gasoline (“TPH-g”), the ESL for middle distillates was selected as the ESL for TPH as diesel (“TPH-d”) and the ESL for residual fuels was selected for TPH as motor oil (“TPH- mo”) and for oil and grease.

TPH-g was not detected above laboratory reporting limits in any of the soil samples analyzed for TPH-g. TPH-d concentrations in soil exceeded the ESL for leaching concerns for drinking water resource of 83 mg/kg and the residential gross contamination ceiling level ESLs of 100 mg/kg at

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8 of the 54 soil samples analyzed for TPH-d. TPH-mo concentrations in soil did not exceed the direct exposure ESL for the residential scenario of 1,800 mg/kg or the residential gross contamination ceiling level ESLs of 500 mg/kg. Oil and grease concentrations in soil exceeded the residential gross contamination ceiling level ESLs of 500 mg/kg at 6 of the 8 soil samples analyzed for oil and grease. TPH-d concentrations detected in soil ranged from 25.2 to 1,380 mg/kg, TPH-mo concentrations ranged from 104 to 3643 mg/kg, and oil and grease concentrations ranged from 57.5 to 8,520 mg/kg.

TPH-d and TPH-mo were not detected above laboratory detection limits in any of the 27 discrete soil samples collected from the Young Bay Mud analyzed for TPH (see samples labeled “– NAT1” in Table 2-2). Therefore, the Young Bay Mud apparently has not been impacted by TPH detected in the fill materials.

TPH-d concentrations exceeded the ESL for direct exposure for the residential scenario of 540 mg/kg in grid areas D and E and oil and grease concentrations exceeded the ESL for direct exposure for the residential scenario of 1,800 mg/kg in grid areas B, D, E, and F. Therefore, TPH-d and oil and grease are considered to be COPCs in soil at the Site.

2.1.4 Soil Analytical Results for SVOCs

Analytical results for SVOCs for soil samples are presented in Table 2-3. One or more SVOCs were detected at 3 of the 8 soil samples analyzed for SVOCs. The detected concentrations of bis(2-ethylhexyl) phthalate, chrysene, fluoranthene, and pyrene were all below CHHSLs, EPA- SLs, or applicable ESLs. Therefore, SVOCs are not considered to be COPCs in soil at the Site.

2.1.5 Soil Analytical Results for PCBs, Chlorinated Herbicides, and Organochlorine Pesticides

Analytical results for PCBs, chlorinated herbicides, and organichloride pesticides for soil samples are presented in Table 2-4. Chlorinated herbicides were not detected above laboratory reporting limits in any of the 8 soil samples analyzed for chlorinated herbicides.

Aroclor 1260 was the only PCB detected in soil at the Site. Aroclor 1260 exceeded the CHHSL of 0.089 mg/kg at 6 of the 8 soil samples. Aroclor 1260 exceeded the EPA-SL and the ESL for direct exposure for the residential scenario of 0.22 mg/kg at 4 of the 8 soil samples. Aroclor 1260 concentrations detected in soil ranged from 0.127 to 0.752 mg/kg. Aroclor 1260 exceeded the CHHSL in the 0 to 2 feet bgs depth interval in grid areas A through F. Therefore, Aroclor 1260 is considered to be a COPC in soil at the Site.

Organochlorine pesticides were detected at 5 of 6 soil samples collected from the Site and analyzed for organochlorine pesticides. DDD, DDE, DDT, and, dieldrin were the only pesticides detected in soil samples above laboratory detection limits. DDD, DDE, and DDT concentrations in soil did not exceed their respective CHHSLs and EPA-SLs for residential soil or the ESLs. Dieldrin exceeded the ESL for leaching concerns for drinking water resource of 0.0023 mg/kg at 2 of the 6 soil samples and exceeded the CHHSLs, EPA-SLs, and ESLs for residential soil at 1 of

3 The maximum TPH-mo concentration for analysis conducted with silica gel cleanup is 245 mg/kg.

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the 6 soil samples. Dieldrin concentrations detected in soil ranged from 0.0013 to 0.589 mg/kg and exceeded the CHHSLs, EPA-SLs, and ESLs for residential soil in grid area F. Therefore, dieldrin is considered to be a COPC in soil at the Site.

2.1.6 Soil Analytical Results for VOCs

Analytical results for VOCs for soil samples are presented in Table 2-5. There are no CHHSLs for VOCs. Except for 1,2,3-trichloropropane, VOCs were not detected above their respective EPA-SLs or applicable ESLs. 1,2,3-Trichloropropane was detected slightly above the EPA-SL in two deep soil samples collected from grid area H, but was not detected above laboratory detection limits in shallow soil samples collected from grid area H or in other soil samples collected from the Site and analyzed for VOCs. The presence of 1,2,3-trichloropropane in deep soil in grid area H is, therefore, probably related to the detections of 1,2,3-trichloropropane in grab groundwater samples collected from grid area H. As discussed below, the presence of VOCs in groundwater does not pose unacceptable risks for potentially exposed populations (EKI, 2009b). Therefore, VOCs are not considered to be COPCs in soil at the Site.

2.2 Groundwater Analytical Results

2.2.1 Groundwater Screening Criteria

Concentrations of constituents detected in groundwater were compared with applicable screening criteria to identify preliminary groundwater COPCs. Concentrations of constituents detected in groundwater samples were compared to California Maximum Contaminant Levels (“MCLs”) (DHS, 2009) and the SFRWQCB ESLs (SFRWQCB, 2008). Applicable ESLs include ESL for vapor intrusion concerns for residential soil (Table E-1), freshwater aquatic habitat goal ESL (Table F-4a), drinking water ESL (Table F-3), drinking groundwater ceiling level ESL (Table I-1), non-drinking groundwater ceiling level ESL (Table I-2), and surface water ceiling level ESL (Table I-3).

2.2.2 Metals

Analytical results of metals for grab groundwater samples are presented in Table 2-6. Arsenic and lead, which were identified as soil COPCs for the Site, were not detected in grab groundwater samples at concentrations exceeding the groundwater screening levels mentioned above. Cadmium, cobalt, copper, and/or nickel were detected above the freshwater aquatic habitat goal ESLs in grab groundwater samples collected from grid areas F, G, and H (Novartis Easement Parcel). Nickel was also detected above its MCL in the grab groundwater samples collected from boring B-2 in grid area H. However, cadmium, cobalt, copper, and nickel were not identified as soil COPCs and the detected concentrations in soil are probably not the result of the former use of the Site. Therefore, the detected concentrations of cadmium, cobalt, copper, and nickel in grab groundwater samples are likely the result of ambient concentrations of metals in groundwater or from releases from an up-gradient property. For this reason, cadmium, cobalt, copper, and nickel are not identified as groundwater COPCs for the Site.

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2.2.3 TPH and VOCs

Analytical results of TPH and VOCs for grab groundwater samples are presented in Table 2-7. TPH-g was not detected above laboratory reporting limits in the grab groundwater samples collected from borings E9, E10, F4, and G1. TPH-g was detected above the surface water and drinking water ceiling level ESLs of 100 ug/L in the grab groundwater samples collected from borings B-1 and B-2 in grid area H (Novartis Easement Parcel). TPH-d was not detected above laboratory reporting limits in the grab groundwater samples collected from borings E9, E10, and G1. TPH-d was detected above the surface water and drinking water ceiling level ESLs of 100 ug/L in the grab groundwater samples collected from borings B-1 and F4. The detected concentrations of VOCs in the grab groundwater samples collected from borings E9, F4, and G1 were all below the MCLs or applicable ESLs. Trichloroethene (“TCE”) was detected slightly above the California MCL (5 ug/L) at a concentration of 5.19 ug/L, but below the rest of the screening criteria, in the grab groundwater sample collected from boring E10. VOCs, including among others cis-1,2-dichloroethene, 1,2-dichloropropane, TCE, and vinyl chloride, were detected above the screening criteria in the grab groundwater samples collected from borings B-1 and B-2 in grid area H.

Elevated concentration of TPH and/or VOCs detected in grab groundwater samples collected from borings B-1 and B-2 (Novartis Easement Parcel), E10, and F4 are likely the result of off- site up-gradient releases and probably not related to the Site. This conclusion is based on the following information: (1) TPH-g and TPH-d were not detected above laboratory reporting limits in soil samples collected from borings B-1 and B-2 and TPH-d and TPH-mo were not detected above laboratory reporting limits in the soil sample collected from location F4 (soil sample F4- FILL1, see Section 2.3); (2) the detected concentrations of VOCs in soil are very low, below the selected screening criteria, indicating that the presence of sources of VOCs in soil is unlikely; (3) TPH-d and TPH-mo were not detected above laboratory detection limits in any of the 27 discrete soil samples collected from the Young Bay Mud below the fill material or in the SPLP leachate from composite soil sample F-COMP2 (see Section 2.3), therefore, the potential leaching of TPH in the fill material to groundwater is considered to be insignificant, (4) TPH and/or VOCs are used or have been used at up-gradient neighboring properties, including Cetus Corporation and Chapman Property and the Novartis Horton Street Campus (former location of the Shell facilities), and (5) TPH-impacted water was observed coming into test pit E3 from the east (EKI, 2009c).

In addition, human health risks due to the inhalation of VOCs by potentially exposed populations, i.e., for park visitors and for workers performing subsurface work, were evaluated in the ABCA to determine if the elevated concentrations of VOCs detected in groundwater pose unacceptable human health risks. The results of the human health risk assessment indicate that the presence of VOCs in groundwater does not pose unacceptable risks for potentially exposed populations (EKI, 2009b). Therefore, TPH and VOCs are not identified as groundwater COPCs for the Site.

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2.3 Additional Analytical Results

The soil sample collected from the fill material of test pit F4 (soil sample F4-FILL1) was analyzed for TPH-d and TPH-mo to determine if the source of the detected TPH-d concentration in the grab groundwater sample collected from boring F4 was the fill material or from an upgradient source. As shown on Table 2-2, TPH-d and TPH-mo were not detected above laboratory detection limits in the soil sample collected from boring F4 between 0 and 2.5 feet bgs, therefore, the fill material is probably not the source of the TPH-d detected in the grab groundwater sample.

To assess the potential leaching of TPH detected in fill materials to the underlying groundwater, the soil sample with the highest detected concentrations of TPH-d and TPH-mo (F-COMP2) was subjected to the SPLP with the leachate being analyzed for TPH-d and TPH-mo. TPH-d and TPH-mo were not detected above laboratory detection limits4 in the SPLP leachate obtained from composite soil sample F-COMP2, therefore, the potential leaching of TPH in the fill material to groundwater is considered to be insignificant (EKI, 2009c).

2.4 Waste Classification

A solid waste may be classified as a hazardous waste under the federal Resource Conservation and Recovery Act (“RCRA”) regulations promulgated in the Title 40 of the Code of Federal Regulations (“CFR”), Part 261. The State of California implements the RCRA hazardous waste identification regulations through regulations contained in Title 22 of the California Code of Regulations (“CCR”).

A solid waste is a RCRA hazardous waste due to the toxicity characteristic (40 CFR §261.24) if the concentration of a chemical in the extract from the Toxicity Characteristic Leaching Procedure (“TCLP”) exceeds the regulatory criterion for that chemical.

Criteria for determining if a solid waste is a hazardous waste under California regulations are included in 22 CCR §66261. A solid waste is a California hazardous waste if the total concentration of a constituent exceeds its Total Threshold Limit Concentration (“TTLC”) criterion, or if the concentration of a constituent in the extract from the Waste Extraction Test (“WET”) (22 CCR §66261, Appendix II) exceeds its Soluble Threshold Limit Concentration (“STLC”) criterion. If the soil is not a hazardous waste pursuant to RCRA, but one or both of the California criteria listed above are exceeded, the soil will be referred to as a non-RCRA (California) hazardous waste. If none of the criteria listed above are exceeded, the soil will be referred as non-hazardous waste.

The waste classification for grid areas A through F is presented in Table 2-8. Waste classification was determined using the criteria described above and analytical results presented in Tables 2-1, 2-3, and 2-8. It is anticipated that when Site soil is excavated it will be managed according to its assigned waste classification without further analysis, unless requested by the

4 The laboratory detection limit for TPH-d and TPH-mo was 100 ug/L.

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landfills accepting the soil. However, if any observations or additional data are collected that indicate the waste classification criteria described above are not applicable or are not adequate to properly classify the waste, the applicable criteria will be utilized.

2.5 Identified Chemicals of Potential Concern

As discussed above, the COPCs in soil at the Site are arsenic, lead, Aroclor 1260, dieldrin, TPH-d, and oil and grease.

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3.0 IDENTIFICATION OF REMEDIAL ACTION OBJECTIVES

This section outlines remedial action objectives (“RAOs”), which are specific to a site area or to a contaminated medium, such as soil or groundwater, and are developed for the protection of human health and the environment. RAOs can address both chemical concentrations and potential exposure pathways. Protection can be achieved by reducing the mass, volume, toxicity, or mobility of chemicals of interest, by reducing potential exposures, or by a combination of these approaches. This section also summarizes proposed remedial goals for the Site.

3.1 Identification of Potential ARARs and TBCs

RAOs are developed by considering, among other things, Applicable or Relevant and Appropriate Requirements (“ARARs”). ARARs are defined in the NCP, 40 Code of Federal Regulations (“CFR”) Part 300.430(e)(2)(i), as follows:

• Applicable Requirements: Cleanup standards, standards of control, and other substantive requirements, criteria, or limitations promulgated under federal environmental or state environmental or facility siting laws that specifically address a hazardous substance, pollutant, contaminant, remedial action, location, or other circumstance found at a Comprehensive Environmental Response Compensation and Liability Act (“CERCLA”) site. • Relevant and Appropriate Requirements: Cleanup standards, standards of control, and other substantive environmental protection requirements, criteria, or limitations promulgated under federal environmental or state environmental or facility siting laws that, while not “applicable” to a hazardous substance, pollutant, contaminant, remedial action, location, or other circumstance at a CERCLA site, address problems or situations sufficiently similar to those encountered at the site that their use is well-suited to the particular site.

ARARs typically are separated into three categories: 1. Chemical-Specific ARARs: These are health-based or risk-based standards that define the allowable limits of specific chemical constituents found in or discharged to the environment. They can provide cleanup and discharge levels that can determine site remedial goals. Most chemical-specific ARARs are applicable to water sources potentially used for drinking water; few are available for ambient air or soil. MCLs for drinking water are examples of potential chemical-specific ARARs. 2. Location-Specific ARARs: These requirements can apply to natural site features, such as wetlands, flood plains, or the presence of endangered species, and to man-made features and institutional factors, including landfills, zoning requirements, and places of historical or archaeological significance. Location-specific ARARs restrict the types of remedial actions that can be implemented based on site-specific characteristics or location. 3. Action-Specific ARARs: These ARARs are technology-based or activity-based limitations that can set performance and design restrictions. They specify permit

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requirements and engineering controls that must be instituted during site activities, or restrict particular activities.

Federal and state non-promulgated standards, policies, or guidance documents, and local requirements, are not ARARs. However, according to the NCP guidance, these items are also to be considered when evaluating and selecting removal actions necessary to protect human health and the environment. These non-promulgated, non-binding factors are designated “To Be Considered,” or “TBCs.” Potential chemical-, location-, and action-specific ARARs and TBCs for the Site are identified, listed, and described on Table 3-1.

3.2 Identification of Remedial Action Objectives

To attain the NCP goals of implementing remedial actions that protect human health and the environment and maintaining protection over time, the following RAOs are established for the Site:

• Mitigate or reduce direct human exposure to soil having COPCs at concentrations exceeding background concentrations or human health-based remedial goals, based on plausible exposure scenarios, including potential exposures of future park patrons and on- Site workers;

• Contain COPC-impacted soil that will not be excavated by maintaining a cover; and

• Implement institutional controls, as needed, as part of the selected remedial actions.

3.3 Site-Specific Remedial Goals

In general, Site-specific remedial goals (“SSRGs”) were selected for the Site based on unrestricted (i.e., residential) use. SSRGs based on unrestricted use provide a conservative remedial goal for park use by park patrons and groundskeepers/maintenance workers with less frequent exposures to Site COPCs than the residential scenario. As mention before, the primary COPCs in soil at the Site are arsenic, lead, Aroclor 1260, dieldrin, TPH-d, and oil and grease. SSRGs for soil for the Site are discussed below and are presented in Table 3-2.

3.3.1 Metal Background Concentrations

Because trace metals occur naturally in soil, it is important to distinguish naturally occurring or background concentrations of metals from those related to impacts caused by Site activities. For this reason, U.S. EPA (1989, 1992) and DTSC (1999) do not intend metal releases to be remediated to concentrations that are below background concentrations. The determination of the background concentration for arsenic is critical because risk-based soil screening criteria are in some cases below typical arsenic ambient concentrations. According to SFRWQCB (2008), site-specific or regional-specific background concentrations can be substituted for risk-based

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concentrations at sites where the conceptual model indicates that concentrations are indicative of site-related contamination.

Background concentrations of seventeen metals were estimated for soils at the Lawrence Berkeley National Laboratory’s (“LBNL”) as reported in the Analysis of Background Distributions of Metals in the Soil at Lawrence Berkeley National Laboratory, June 2002 (LBNL, 2002). The background arsenic concentration for all geologic classifications found at the LBNL (excluding the Great Valley Formation) was estimated at 24 mg/kg. Similarly, background concentrations in soil were determined for the former Oakland Army Base (“OARB”) in Oakland, California based on a statistical analysis of data for background soil samples collected at the OARB. The background arsenic concentration for the OARB was estimated to be 17 mg/kg (EKI, 2002a). At the Campus Bay Site in Richmond, California, the site-specific background concentration for arsenic was calculated at 16 mg/kg (EKI, 2007b).

3.3.1.1 Calculation of a Site-Specific Arsenic Background Concentration

EKI estimated a Site-specific arsenic background concentration using the available arsenic data for the Site. The assumption inherent in the approach used is that a set of spatially distributed site soil samples will contain both arsenic concentrations which reflect background conditions and arsenic concentrations which reflect contamination overprinted on background conditions. The challenge is to find a meaningful way to separate these two sources of arsenic. DTSC recognizes the desirability of estimating background metals concentrations from ordinary site data and has acknowledged this approach in Selecting Inorganic Constituents as Chemicals of Potential Concern at Risk Assessments at Hazardous Waste Sites and Permitted Facilities, dated February 1997 (DTSC, 1997).

3.3.1.1.1 Approach: Sample Selection

A total of 59 Site soil samples have been collected and analyzed for arsenic. This set of soil samples was favorable for background analysis in that all the soil samples were:

• Collected from a variety of spatial locations and depths across the Site,

• Collected by the same company using similar sampling methods,

• All samples were reported on an as received basis,

• Analyzed at the same laboratory using the same low-detection limit analytical methods, preferably Method 6020, which is less susceptible to positive interference problems than Method 6010.

3.3.1.1.2 Approach: Population Analysis

The basic approach used in metals population analysis is to determine whether or not the arsenic data reasonably fit a single population or a multiple population model. This concept is presented schematically in Figure 3-1. As shown in Figure 3-1, the sample data for a metal are considered

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to reflect a single statistical population if its cumulative frequency distribution reasonably approximates a straight line. If two populations are present, the cumulative frequency distribution forms a flattened “S” curve between separate linear segments. If these cumulative distribution patterns occur when the concentration data are displayed on a linear scale, then the underlying population model is Normal, i.e., Gaussian. If these cumulative distribution patterns occur when the concentration data are displayed on a logarithmic scale, then the underlying population model is lognormal. For trace metals in soils and rocks, the cumulative frequency distributions are almost always lognormal.

Cumulative frequency distributions that reflect two or more populations can be partitioned into separate populations (also referred to as frequency distribution decomposition). Population partitioning is a modeling technique widely used in mineral exploration and described by Sinclair (1976), but has also been used in other fields such as marine biology (Harding, 1949). This method allows geochemical data to be modeled and partitioned into component populations based on a lognormal or normal data model.

3.3.1.1.3 Results

Figure 3-2 shows the arsenic cumulative frequency distribution of the Horton Landing Park`s 59 soil samples. The “S” shape of the curve indicates that there are two arsenic populations present in the data.

The Horton Landing Park arsenic data population partitioning was performed using PROBPLOT, a program published by the Association of Applied Geochemists (1989). PROBPLOT is an interactive computer program that allows the user to analyze and model either normal or lognormal cumulative frequency data. The user inputs the number of component populations and type of distribution (i.e., normal or lognormal), and then uses a curve-fitting algorithm to model the cumulative frequency data. Once a successful single or multi-modal frequency distribution model is fit to the data, the model is partitioned into its component populations. The successful or best-fit frequency distribution model is used to obtain a statistical description of each population, including the mean and standard deviation. Minitab® Statistical Software (Release 15) was used to perform cumulative frequency analysis of the Site arsenic data and present the partitioning results graphically.

The PROBPLOT population partitioning indicated that the data could be modeled as a mixture of two lognormal populations, a lower concentration population (assumed to be background) making up 48.4% of the data and a higher concentration population (assumed to represent a contaminated population) making up 51.6% of the data. Minitab® was used to create large data sets with the lognormal mean and standard deviations corresponding to the background and contaminated populations derived from PROBPLOT. These simulated data were combined in the proportions estimated by PROBPLOT and plotted with the Site arsenic data in Figure 3-3. As shown in Figure 3-3, the cumulative frequency plot of the simulation data closely follows the cumulative frequency plot of the Site arsenic data.

The lower concentration simulation population is taken as the background arsenic population. It is plotted on Figure 3-4. From this lognormal distribution various estimates of the maximum or

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threshold background arsenic concentration at Horton Landing Park can be derived, as shown in the following table:

Parameter Arsenic Concentration (mg/kg) 95th Percentile 11 95th Percentile 95% UTL 12 99th Percentile 16 99th Percentile 95% UTL 17

Background metals distributions are statistical entities based on a limited amount of sample data. As such, they cannot capture the full range of concentrations that could be found were the sampling and analysis truly exhaustive. In particular, it is impossible to know the true maximum concentration that a specific metal could attain; it can only be estimated. Whatever estimate of the maximum background metal concentration is derived, e.g., the 99th percentile of the data distribution, is based only on what data are available. Were it possible to collect and analyze other, entirely independent sets of samples, the resulting estimates of the 99th percentile would likely all be different. Hence, there is a fundamental uncertainty associated with any such estimate. This fundamental uncertainty is addressed by associating a statistical tolerance interval with the distributional threshold selected to represent the upper end of background. The definition of a meaningful upper threshold for background arsenic concentrations requires the application of a tolerance interval to account for the fundamental uncertainty associated with the population model. A tolerance interval is a calculated range of values within which an individual measurement should fall when measuring a known value. In this instance, the tolerance interval being calculated is associated with the percentile of the arsenic background population distribution which is taken to represent the upper end of background. A 95% upper tolerance level (“UTL”) on the 99th percentile functionally means that we will be 95% confident that the given interval contains at least 99% of all future measurements we could make if we were attempting to determine the 99th percentile from many additional independent investigations.

The 99th percentile of the background arsenic distribution is 16 mg/kg. The 95% UTL on the 99th percentile is 17 mg/kg arsenic. The background arsenic threshold level for the Site is therefore recommended to be 17 mg/kg.

3.3.2 Remedial Goal for Arsenic

EKI proposes to use the estimated Site-specific background arsenic concentration of 17 mg/kg as the remedial goal for arsenic for the Site. EKI believes it is conservative to use 17 mg/kg as the Site-specific remedial goal for arsenic in soil because: (1) it is consistent with background arsenic concentrations for other sites in the vicinity of Emeryville (see discussion above) and (2) it is lower than the remedial goal for arsenic of 24 mg/kg utilized at other properties in Emeryville, including the Sherwin Williams property (CDM, 2009), which is adjacent to the Site, at the UPRR Parcel D site (EKI, 2008), which is located west of the Sherwin Williams property, and at former UPRR Parcels 1, 2, 3, 4, 6, 7, and 8 (EKI, 2004a, 2004b, and 2004c), all

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of which were developed for park use. Detected concentrations of arsenic in soil above the proposed SSRG are shown in bold on Figure 3-5.

3.3.3 Remedial Goal for Lead

The SSRG for lead is 260 mg/kg and is based on the ESL for residential soil. To assess if the proposed SSRG for lead is also protective of a pregnant worker, the U.S. EPA`s Adult Lead Model (“ALM,” U.S. EPA, 2009a) was used to estimate the blood lead concentration in a fetus of an adult worker. For the hypothetical long-term groundskeeper/maintenance worker5 scenario, the same methodology and assumptions (except for the soil ingestion rate) utilized to develop the lead CHHSL for the occupational adult scenario (CAL/EPA, 2009b) were used in this assessment. The soil ingestion rate for the groundskeeper/maintenance worker was increased from the default value of 0.05 g/day to 0.0524 g/day, 6 to account for the additional ingestion of soil that may occur during the 12 days per year that the groundskeeper/maintenance worker may dig into Site soil. The calculated soil lead concentration that would give rise to the 90th percentile estimate of change in blood lead of 1 ug/dL for the groundskeeper/maintenance worker scenario is 300 mg/kg, which is greater than the proposed SSRG for lead of 260 mg/kg. Therefore, the proposed SSRG for lead in soil is protective of groundskeeper/maintenance workers. Detected concentrations of lead in soil above the proposed SSRG are shown in bold on Figure 3-5.

3.3.4 Remedial Goals for TPH-d and Oil and Grease

The proposed SSRGs for TPH-d and oil and grease in soil of 540 mg/kg and 1,800 mg/kg, respectively, are based on the ESL for direct exposure for the residential scenario. As explained before, the ESL for middle distillates was selected as the ESL for TPH-d and the ESL for residual fuels was selected for oil and grease. Detected concentrations of TPH-d and oil and grease in soil above the proposed SSRGs are shown in bold on Figure 3-5.

The ESLs for leaching concerns for TPH were not selected as the proposed SSRGs for TPH-d and oil and grease in soil because the potential leaching of TPH in the fill material to groundwater is considered to be insignificant (see Section 2.2.3).

3.3.5 Remedial Goal for Aroclor 1260

The proposed SSRG for Aroclor 1260 in soil will comply with a federal statute called the Toxic Substances Control Act (“TSCA”). TSCA cleanup levels for PCBs (40 CFR §761.61(a)(4)) are

5 Groundskeeper/maintenance workers consist of individuals that are considered to be employed full-time at the Site for 250 days per year over a period of 25 years. For 12 days per year, it is assumed that groundskeeper/maintenance workers will dig beneath clean fill and cover materials into the soil to plant or maintain vegetation, or to install or repair sprinkler lines, electrical conduits, and other subsurface utilities or improvements. For the remaining 238 days per year, groundskeeper/maintenance workers are assumed to perform activities that are limited to work above clean fill and cover materials. 6 The soil ingestion rate for groundskeeper/maintenance workers was estimated as the time-weighted average of the default ingestion rate of 0.05 g/day (for 238 days per year) and the ingestion rate for an outdoor worker of 0.1 g/day (for 12 days per year). The default ingestion rate for a long-term outdoor worker was obtained from U.S. EPA guidance (U.S. EPA, 2002).

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1 mg/kg for a property that might be used for high occupancy purposes7 (e.g., commercial/industrial or residential uses), and 10 mg/kg for these uses if the PCB-impacted soil is covered by a cap. TSCA cleanup levels are 25 mg/kg for a property that might be used for low occupancy purposes, 50 mg/kg if the property is secured by a fence and marked with a sign, and 100 mg/kg if the PCB-impacted soil is covered by a cap.

The proposed SSRG for Aroclor 1260 is 0.22 mg/kg, which is based on the ESL for direct exposure for the residential scenario and is below the most stringent TSCA cleanup level of 1 mg/kg.8 Detected concentrations of Aroclor 1260 in soil above the proposed SSRG are shown in bold on Figure 3-5.

3.3.6 Remedial Goal for Dieldrin

The SSRG for dieldrin is 0.034 mg/kg and is based on the ESL for direct exposure for the residential scenario. Detected concentrations of dieldrin in soil above the proposed SSRGs are shown in bold on Figure 3-5.

7 In accordance with TSCA, a low occupancy area means any area where occupancy for any individual, regardless of whether it is for commercial or residential use, for a calendar year is less than 335 hours (an average of 6.7 hours or less per week) and a high occupancy area means any area where occupancy for any individual for a calendar year is 335 hours or more (an average of 6.7 hours or more per week). 8 Note also that the maximum detected concentration of Aroclor 1260 at the Site (0.752 mg/kg, see Table 2.4) is also below the most stringent TSCA cleanup level.

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4.0 IDENTIFICATION AND ANALYSIS OF REMEDIAL ACTION ALTERNATIVES

The remediation technologies considered for the reduction of COPCs in Site soil are: (1) no action, (2) excavation and off-Site disposal, and (3) limited excavation with off-Site disposal and capping. The remediation technologies are described in the following sections in terms of their effectiveness, implementability, cost, and compliance with ARARs and TBCs to the extent practicable.

The acceptance criteria of effectiveness, implementability, cost, and compliance with ARARs and TBCs were selected to determine how the alternatives compare with one another and to identify trade-offs between them.

1. Effectiveness: This criterion addresses how well a remedial action satisfies the RAOs in the short and long term, and addresses protection of human health and the environment during construction and implementation of remedial actions.

2. Implementability: This criterion is meant to assess implementability considering the technical and administrative feasibility of each alternative, as well as the availability of needed goods and services to perform the remedial action. Other implementability considerations include the ability to monitor remedial effectiveness and the ability to obtain approvals and permits.

3. Cost: This criterion evaluates the cost of remedial action alternatives, including both total long-term and short-term costs.

4. Compliance with ARARs and TBCs: This criterion evaluates if the remediation technologies comply with the applicable ARARs and TBCs.

Table 4-1 summarizes the comparison of alternatives in terms of these acceptance criteria. An on-Site soil treatment alternative was not chosen for detailed alternative analysis. On-Site soil treatment was considered to be an infeasible remedial action for the Site in terms of the acceptance criteria of effectiveness, implementability, and cost.

4.1 Alternative 1: No Action

Under the No Action alternative, COPCs would remain in place at their current concentrations. Concentrations of several COPCs (including TPH, Aroclor 1260, arsenic, lead, and dieldrin) were detected above SSRGs in soil samples collected at the Site primarily north of Temescal Creek. A No Action alternative would allow potential human and ecological receptor exposure to the existing Site soil contamination in unpaved areas or in areas where the pavement has been damaged. The No Action alternative may require institutional controls (“ICs”) (including zoning restrictions, deed restrictions, well drilling prohibitions, and easements and covenants) to reduce the risk of exposures to Site COPCs if existing barriers are weakened or damaged. Specifically,

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the No Action alternative would require restrictions for redevelopment of the Site for park use. Additional consultant and regulatory agency costs would be associated with establishing these future ICs, when needed.

4.1.1 Effectiveness

Because no removal of any Site features occurs under this scenario, paved surfaces would continue to function as barriers limiting the potential exposures to COPCs for Site workers and the public. This alternative does not meet the RAO of mitigating or reducing direct human exposure to COPC-impacted soil or the RAO of containing COPC-impacted soil by maintaining a cover in unpaved areas. The only reduction in toxicity, mobility, or volume of Site COPCs that would result under this alternative is from natural degradation of TPH and Aroclor 1260. Dieldrin and metal concentrations in soils would likely remain unaffected.

4.1.2 Implementability

The No Action alternative is easily implemented, requiring minimal effort to establish the ICs defined above, when needed.

4.1.3 Cost

Consultant and regulatory agency costs would be associated with establishing the future ICs defined above, when needed.

4.1.4 Compliance with ARARs and TBCs

The No Action Alternative will comply with location- and action-based ARARs and TBCs to the extent practicable, but will not comply with chemical-specific ARARs and TBCs.

4.2 Alternative 2: Excavation and Off-Site Disposal

Excavation and Off-Site Disposal entails physical removal of COPC-impacted soils from the Site and transporting those soils to either a permitted landfill or treatment facility for disposal. Prior to soil excavation at the Site, existing paved surfaces, railroad spur remnants, and debris would be removed.

Costs associated with Excavation and Off-Site Disposal would include excavation equipment, soil profiling, soil removal, transport, and disposal charges. The estimated volume of non- RCRA California hazardous waste for off-Site disposal is 5,500 bcy (9,900 tons), and the estimated volume of non-hazardous waste for off-Site disposal is 1,300 bcy (2,300 tons).

4.2.1 Effectiveness

The Excavation and Off-Site Disposal alternative will effectively reduce health risks from potential exposures to construction worker and park patrons, as well as ecological receptors on Site. The contaminated soil would be removed in areas where contamination is above SSRGs

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and transported to an appropriate landfill for storage and/or treatment. Disposing of the soil in a permitted landfill will reduce potential future ecological and human health risks associated with contaminated soil.

The anticipated duration of excavation activities under the Excavation and Off-Site Disposal alternative is approximately five weeks. The Excavation and Off-Site Disposal alternative may have decreased effectiveness in the short term as a result of dust and odor generated during excavation that may affect the health of on-Site workers and public receptors off-Site. In addition, the Excavation and Off-Site Disposal alternative may not be effective in the short term due to transportation restrictions at the Site during excavation activities (i.e., truck routes, staging, and decontamination). However, the alternative would include appropriate engineering controls such as personal protective equipment for on-Site workers, dust and odor suppressant measures, and other traffic controls, that may increase the short-term effectiveness of the alternative. It is anticipated that the Excavation and Off-Site Disposal alternative will be most effective in the long term.

4.2.2 Implementability

The Excavation and Off-Site Disposal alternative is easily implemented because contaminated soil that would need to be excavated and transported off-Site could be both loaded and transported off-Site during excavation activities (pending regulatory approval), or stockpiled in specified areas with impacted soils and removed after the stockpiled soils are characterized. This alternative uses readily available equipment and experienced contractors to perform work. Adequate transportation capacity exists in the area with numerous licensed hazardous waste haulers available. It is assumed that excavated soil will be loaded into trucks on-Site and that trucks will use Stanford Avenue as a point of access to and egress from the Site. Several disposal facilities are easily accessible from the Site for disposal of non-hazardous (Class II), non-RCRA California hazardous, and RCRA hazardous (Class I) wastes. Adequate capacity exists at many permitted disposal facilities to provide treatment (if needed) and disposal of 12,200 tons of soils. The Excavation and Off-Site Disposal alternative may require additional effort to develop and execute the engineering controls described above in order to protect the health of on- and off-Site receptors, and to manage on-Site transportation.

4.2.3 Cost

The cost to excavate contaminated soil into end-load dump trucks is $7.10 per bank (in-place) cubic yards (“bcy”). The cost for transportation and disposal of non-RCRA California hazardous waste is $95 per ton. The estimated cost for soil removal, transportation, and disposal of 5,500 bcy (9,900 tons) of non-RCRA California hazardous waste would be approximately $940,500. The cost for transportation and disposal of non-hazardous waste is $60 per ton. The estimated cost for soil removal, transportation, and disposal of 1,300 bcy (2,300 tons) of non-hazardous waste would be approximately $138,000. Imported backfill would cost approximately $38 per ton, which would total approximately $464,000 to backfill 12,200 tons of excavated soil. The total estimated present worth cost for Alternative 2 is $2,100,000 to $4,300,000, which assumes a -30% to +50% accuracy range and a 30% contingency for the total estimated capital cost

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(Table 4-2). Supporting information for the estimated remedial cost for Alternative 2 is included in Appendix A.

4.2.4 Compliance with ARARs and TBCs

Alternative 3 will comply with the applicable ARARs and TBCs to the extent practicable.

4.3 Alternative 3: Limited Excavation with Off-Site Disposal and Capping

Limited Excavation with Off-Site Disposal and Capping entails physical removal of the top 1 foot of COPC-impacted soils from the Site in areas that will not be covered by the pedestrian ramp, removal of potentially impacted soil at the proposed location of the bridge’s footings, transporting those soils to either a permitted landfill or treatment facility for disposal, recording of a deed restriction, and preparation of a Site Management Plan (“SMP”). An excavation depth of 1 foot was selected to avoid removing the layer of shell hash that was encountered in the vicinity of Temescal Creek at depths ranging from approximately 2 to 5 feet bgs (see Section 1.3) and also to limit direct contact with COPC-impacted soil of future park patrons. Subsurface workers will be protected by appropriate worker health and safety protocols. Alternative 3 also includes a cap system to limit direct contact with COPC-impacted soil. The cap will consist of one of the following cap materials: clean soil (including landscaped areas), above ground structures (like the pedestrian ramp), and concrete pavement to be constructed as part of redevelopment. Prior to soil excavation at the Site, existing paved surfaces, railroad spur remnants, and debris would be removed.

The Agency is considering using some of the excavated soil classified as non-hazardous waste (for example, soil excavated from grid areas A and B) as part of the embankment for the pedestrian ramp. It was preliminary estimated that approximately 580 cubic yards of soil could be placed in the embankment between the ground surface and 2 feet below the ramp`s surface. Under this Alternative, approximately 460 cubic yards of non-hazardous waste excavated from grid areas A and B could potentially be used in the embankment. Clean soil or any additional soil classified as non-hazardous waste would be used to make up for the difference.

The estimated volume of waste for off-Site disposal is 1,400 bcy (2,500 tons) of non-RCRA California hazardous waste. Costs associated with Limited Excavation with Off-Site Disposal and Capping would include excavation equipment, soil profiling, soil removal, transport, disposal charges, materials and labor for the cap.

4.3.1 Effectiveness

The Limited Excavation with Off-Site Disposal and Capping alternative will reduce to some extent health risks from potential exposures to construction worker and park patrons, as well as ecological receptors on Site. The top one foot of soil containing COPCs above SSRGs (i.e., soil north of Temescal Creek) will be removed and transported to an appropriate landfill for storage and/or treatment. Disposing of the soil in a permitted landfill will reduce potential future ecological and human health risks associated with contaminated soil. The installation and maintenance of a cap system will prevent direct exposure to soil for park patrons.

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The anticipated duration of excavation activities under the Limited Excavation with Off-Site Disposal and Capping alternative is approximately two weeks. The Limited Excavation with Off- Site Disposal and Capping alternative may have decreased effectiveness in the short term as a result of dust and odor generated during excavation that may affect the health of on-Site workers and public receptors off-Site. In addition, the Limited Excavation with Off-Site Disposal and Capping alternative may not be effective in the short term due to transportation restrictions at the Site during excavation activities (i.e., truck routes, staging, and decontamination). However, the alternative would include appropriate engineering controls such as personal protective equipment for on-Site workers, dust and odor suppressant measures, and other traffic controls, that may increase the short-term effectiveness of the alternative.

It is anticipated that with on-going monitoring and maintenance of the cap system and implementation of the protocols established in the SMP during future subsurface activities, the Limited Excavation with Off-Site Disposal and Capping alternative will be effective in the long term. In addition, recording of a deed restriction will prevent future redevelopment of the Site for unrestricted uses.

4.3.2 Implementability

The excavation and disposal portion of the Limited Excavation with Off-Site Disposal and Capping alternative can be implemented in the same manner as Alternative 2, with the advantage of smaller quantities of waste soil. Under Alternative 3, only the top one foot of Site soils would be excavated, whereas excavation for complete COPC source removal under Alternative 2 requires excavation from 0 up to 5.5 feet bgs. Additional effort would be required under Alternative 3 for the installation and on-going monitoring of the cap system, recording of a deed restriction, and preparation and implementation of the SMP. Adequate capacity exists at many permitted disposal facilities to provide treatment (if needed) and disposal of 2,500 tons of soils.

The Limited Excavation with Off-Site Disposal and Capping alternative may require additional effort to develop and execute the engineering controls described above in order to protect the health of on- and off-Site receptors, and to manage on-Site transportation.

4.3.3 Cost

The cost to excavate contaminated soil into end-load dump trucks is $7.10 per bcy. The cost for transportation and disposal of non-RCRA California hazardous waste is $95 per ton. The estimated cost for soil removal, transportation, and disposal of 1,400 bcy (2,500 tons) of non- RCRA California hazardous waste would be approximately $237,500. Imported backfill would cost approximately $38 per ton, which would total approximately $95,000 to backfill 2,500 tons of excavated soil. The present worth of annual costs for annual cap maintenance is approximately $450,000 (assumed thirty-year maintenance schedule). The total estimated present worth cost for Alternative 3 is $1,300,000 to $2,200,000, which assumes a -30% to +50% accuracy range and a 30% contingency for the total estimated capital cost (Table 4-2). Supporting information for the estimated remedial cost for Alternative 3 is included in Appendix A.

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4.3.4 Compliance with ARARs and TBCs

Alternative 3 will comply with location- and action-based ARARs and TBCs to the extent practicable, but will not comply with chemical-specific ARARs and TBCs.

4.4 Comparison of Alternatives

Alternative 1 does not meet the RAO for the Site of mitigating or reducing direct human exposure to soil having COPCs at concentrations exceeding background concentrations or the proposed remedial goals in unpaved areas, so it is not an effective alternative. Alternatives 2 and 3 meet the RAOs for the Site, but Alternative 3 is more cost effective than Alternative 2 (see Table 4-2). Although Alternative 2 is the only alternative that will comply with the applicable chemical-, location-, and action-based ARARs and TBCs to the extent practicable, it would result in the removal of shell hash present at the Site (see Section 1.3), which is a potential archeological resource. As mentioned before, the presence of shell hash at the Site indicates that Native Americans may have used the Site in the past as a dump for domestic waste. The layer of shell hash encountered at the Site is consistent with shell hash found in an archaeological shell midden deposit (i.e., dark, highly organic soil containing a high concentration of human food waste remains, including shellfish). Based on the evaluation of the alternatives presented above, Alternative 3 – Limited Excavation with Off-Site Disposal and Capping is the recommended alternative. Overall, EKI believes that Alternative 3 best meets the RAOs considering effectiveness, implementability, cost, and compliance with applicable ARARs and TBCs.

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5.0 SITE CLEANUP PLAN

As discussed in the previous section, the recommended alternative entails limited excavation, off-Site disposal of COPC-impacted soils and transportation of those soils to off-Site permitted disposal facilities, recording of a deed restriction, and preparation of a SMP. The following sections describe in more detail the remedy to be implemented and activities to be performed prior, during and after cleanup of the Site.

5.1 Site Cleanup Description

The Agency is planning to develop the Site as a park, which will include a pedestrian bridge that will allow people to cross over the railroad tracks to the Bay Street development. Proposed park amenities might include a pedestrian bridge, a concrete path, a seat wall, and a plaza. There is no plan to include a play area or playground in the park. Portions of the Site will be overlain with between 2 to 10 feet of soil. A ramp will be constructed on-Site as part of the pedestrian bridge. The Agency’s plan is to excavate shallow COPC-impacted soil (i.e., 1 foot) in areas that will not be covered by the pedestrian ramp and to remove potentially impacted soil at the proposed location of the bridge’s footings (see Figure 5-1). An excavation depth of 1 foot was selected to avoid removing the layer of shell hash that was encountered in the vicinity of Temescal Creek at depths ranging from approximately 2 to 5 feet bgs (see Section 1.3) and also to limit direct contact with COPC-impacted soil of future park patrons. Additional excavations will be conducted for the installation of subgrade utilities, light poles, the seat wall, tree pits, and 9 inches of topsoil, among other things. The vertical and lateral extents of these additional excavations will be incorporated into the Contract Documents to be prepared for the Site before cleanup activities take place, using the final park`s design specifications.

The Agency is considering using some of the excavated soil classified as non-hazardous waste (for example, soil excavated from grid areas A and B) as part of the embankment for the pedestrian ramp. It was preliminary estimated that approximately 580 cubic yards of soil could be placed in the embankment between the ground surface and 2 feet below the ramp`s surface. Under this Alternative, approximately 460 cubic yards of non-hazardous waste excavated from grid areas A and B could potentially be used in the embankment. Clean soil or any additional soil classified as non-hazardous waste would be used to make up for the difference.

A marker (composed of orange plastic construction fencing or a selected geomembrane material) will be placed at the perimeter sidewalls and the bottom of the excavation areas after they are completed. The clean import soil will be placed on top of the marker, which will allow future subsurface workers (e.g., maintenance workers, utility workers, or construction workers) to be aware that they have reached the base of newly imported soils or other surface covering materials that are known to be free of undesirable levels of potential contaminants. Thus, work below the marker material will be in soils that may contain COPCs above SSRGs and will trigger appropriate worker health and safety protocols. The procedures and safety protocols for working below the imported clean fill and below the marker materials will be specified in the SMP to be prepared for the Site.

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The soil remediation activities will be conducted in conjunction with the redevelopment of the Site for the bridge landing and park. As part of the remediation soil excavation activities, permits will be obtained and existing asphalt cover, debris, and any encountered below-grade structures will be demolished.

The excavation areas may be staged by the remedial contractor (“Contractor”) into smaller areas that will be excavated and backfilled according to procedures listed above and below to maintain access for excavation and construction activities. Due to access limitations and concerns to protect adjacent above-grade neighboring structures and use of street and rail corridors, lateral extents of the excavations will not proceed beyond the excavation support structures or buffer zones, as deemed necessary by the railroad, the Agency, or results of a geotechnical evaluation. Final limits of the excavations will be generally surveyed by a licensed surveyor and the survey information will be included in the Site Cleanup Completion Report (see Section 5.4).

Soil excavated during the construction and remediation activities may be stockpiled or, pending pre-approval of waste profiles from the Agency-approved disposal facilities selected by the Contractor, excavated soil will be directly loaded into trucks and transported to the appropriate disposal facilities (Class I and/or Class II).

It is estimated that at least 2,500 tons of soil will be excavated and disposed of at an off-Site permitted disposal facilities.

5.2 Preparatory Activities

Tasks to be performed prior to commencement of Site cleanup activities are summarized below.

• Preparation of a Site Cleanup Plan (SCP – this document) that describes the details of work to be implemented and the sequence of cleanup actions. The Agency will submit a conditional approval of the SCP to DTSC and SFRWQCB for concurrence. The Agency will confer with the DTSC and SFRWQCB for review and approval of plans to be submitted with the Final SCP. • Completion of Contract Documents for procurement of a Contractor to perform the cleanup action as part of the site redevelopment activities. • Agency preparation of a fact sheet and notice to be posted in the newspaper regarding the 30-day public comment period, and facilitation of a public meeting prior to initiating the cleanup action. • Selection of a Contractor and completion of contract negotiation and award. The selected Contractor will need to possess a Hazardous Substance Removal Certification from the Contractors State License Board. • Contractor procurement of necessary permits, and utility clearances prior to the commencement of remedial excavation activities at the Site. • Coordination of pre-approval for waste disposal classifications with potential off-Site permitted disposal facilities as determined to be necessary by the selected contractor.

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5.2.1 Site Specific Plans to be Submitted Prior to Site Cleanup Activities

The following plans are included in this SCP:

• A Traffic Control and Waste Transportation Plan (see Appendix B); • A Decontamination Plan (see Appendix C); • A Dust Control Plan (see Appendix D); • A Perimeter Air Monitoring Plan (“AMP,” see Appendix E); • A Storm Water Pollution Prevention Plan (“SWPPP,” see Appendix F); • A Soil Sampling and Analysis Plan (“SAP,” see Appendix G); • A Quality Assurance Project Plan (“QAPP,” see Appendix H); and • An EKI Site-Specific Health and Safety Plan (“HSP,” see Appendix I);

The following subsections summarize the contents of each plan and describe requirements for the selected Contractor to prepare a Contractor Site-specific HSP, to prepare a Contractor addendum to the Traffic Control and Waste Transportation Plan and SWPPP, and to prepare a Contractor addendum to the Decontamination Plan and Dust Control Plan, if necessary. Copies of these plans will be retained on-Site during Site cleanup activities. The plans will assist in the management of the construction activities for Site cleanup by identifying techniques the Contractor is to use to implement Site cleanup. The final plans and the Contractor plan addendums will be submitted to the Agency, which will confer with DTSC and SFRWQCB separately, as an amendment or addendum to the Final SCP.

The presence of archaeological artifacts was not observed during the environmental investigations conducted in 2002 and 2009 at the Site. Therefore, it is assumed that the uncovering of archaeological artifacts is not likely. However, EKI will brief the Contractor to the possibility of uncovering archaeological artifacts. A procedure will be established should such artifacts be found over the course of excavation.

5.2.1.1 Summary of Traffic Control and Waste Transportation Plan

EKI has prepared a Traffic Control and Waste Transportation Plan, which is included in Appendix B. The Traffic Control and Waste Transportation Plan specifies procedures for general and unique handling, transportation, and disposal of excavated soil and traffic control issues at the Site during Site cleanup activities. The Traffic Control and Waste Transportation Plan has been prepared following the DTSC guidance Transportation Plan – Guidance for Developing Transportation Plans for Removal or Remedial Actions (DTSC, 2001a), and the Agency’s requirements.

The selected Contractor will be required to prepare an addendum to the Traffic Control and Waste Transportation Plan that specifies: (1) the actual off-Site disposal facilities and the transportation routes if actual disposal facilities vary from facilities listed in this Traffic Control and Waste Transportation Plan, (2) the Contractor’s selected transportation company, and (3) any proposed deviations from procedures specified in the Traffic Control and Waste Transportation Plan.

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5.2.1.2 Summary of Decontamination Plan

EKI has prepared a Decontamination Plan, which is included in Appendix C. The Decontamination Plan specifies procedures for removal, collection, and containment of soil and other potentially contaminated material from equipment and transportation vehicles, decontamination of personnel and tools, and methods for temporary storage, characterization, treatment, and off-Site disposal of decontamination wastes generated during decontamination activities. The selected Contractor will be required to prepare an addendum to the Decontamination Plan if there are any proposed deviations from procedures specified in the Decontamination Plan.

5.2.1.3 Summary of Dust Control Plan

EKI has prepared a Dust Control Plan, which is included in Appendix D. The Dust Control Plan specifies measures to be undertaken to limit generation of dust, measures to be taken if dust is present on adjacent on- and off-Site public streets, and measures to control such emissions following identification of problems as defined by airborne Action Levels specified in the AMP. The selected Contractor will be required to prepare an addendum to the Dust Control Plan if there are any proposed deviations from procedures specified in the Dust Control Plan.

5.2.1.4 Summary of Perimeter Air Monitoring Plan

To monitor the effectiveness of the Contractor’s dust control practices, perimeter air monitoring will be conducted as described in the AMP, prepared by EKI and included in Appendix E. The AMP develops airborne Action Levels for identified airborne COPCs and dust, describes air monitoring procedures, methods, and sampling frequencies, and specifies measures to be undertaken by the Contractor if airborne Action Levels are exceeded.

5.2.1.5 Summary of Storm Water Pollution Prevention Plan

EKI has prepared a SWPPP, which is included in Appendix F, in accordance with the regulatory requirements for construction storm water pollution management and best management practices (“BMP”) that will be implemented, such as those identified by the Storm Water Quality Task Force (SWQTF, 1993). The SWPPP specifies measures to be undertaken to limit storm water impacts from the Site such as reducing the sediment load to the storm water runoff from the Site during Site cleanup activities and preventing accidental spills from impacting storm water. The selected Contractor will be required to file a Notice of Intent (“NOI”) with the State Water Resources Control Board (“SWRCB”) prior to Site cleanup activities.

The selected Contractor will be required to prepare an addendum to this SWPPP that includes: (1) a copy of the NOI and receipt letter, (2) material safety data sheets for chemicals used or stored on the Site during construction, (3) an example BMP inspection form, (4) emergency contact information, and (5) any proposed deviations from procedures specified in the SWPPP.

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5.2.1.6 Summary of the EKI Site-Specific Health and Safety Plan

A Site-specific HSP will specify, among other things, employee training and personal protective equipment, training and medical surveillance requirements, standard operating procedures, and a contingency plan that conforms to the requirements of 29 Code of Federal Regulations (“CFR”) 1910.120 et seq. and other applicable Federal and State laws and regulations, including Title 8, CCR Section 5192.

EKI’s Site-specific HSP, presented in Appendix I, was prepared in accordance with Federal and California Occupational Safety and Health Administration (“OSHA”) standards for hazardous waste operations (29 CFR 1910.120) and Title 8, CCR Section 5192). EKI’s corporate HSP and this Site-specific HSP have been reviewed and signed by a Certified Industrial Hygienist (“CIH”).

EKI’s Site-specific HSP includes the following:

• Description of activities and potential hazards; • Level of personal protection that will be used during sampling activities; • Definition of exclusion, contaminant reduction, and support zones; • Required personal protective measures, including work zone air monitoring; • Key health and safety personnel; • Training; • Medical monitoring; and • Emergency response plan.

The selected Contractor will prepare its own HSP in accordance with the Contract Documents. The Contractor will be responsible for health and safety of their employees and workers sub- contracted to them at the Site. The Contractor’s HSP must be reviewed and signed by a CIH. The Contractor’s HSP is to address Site-specific issues, Site chemicals of potential concern, hazard communication, notification of workers, and other topics required by applicable laws and regulations.

5.2.1.7 Pre-Approval of Waste Disposal Classifications

Waste characterization soil sampling was performed in May 2009 by EKI. Analytical results were included in the Soil and groundwater Investigation Data Report (EKI, 2009c) and are presented in Table 2-8. Total metal concentrations of any of the composite soil samples collected during the May 2009 investigation exceeding 10 times the soluble threshold limit concentration (“STLC”) criterion were subjected to the Waste Extraction Test (“WET”) with the leachate being analyzed for that metal. Similarly, total metal soil concentrations exceeding 20 times the Resource Conservation and Recovery Act (“RCRA”) regulatory criterion were subjected to the Toxicity Characteristic Leaching Procedure (“TCLP”) with the leachate being analyzed for that metal. Based on review of the available waste characterization analytical data, soil proposed for excavation was classified as either non-hazardous waste (Class II) or non- RCRA (California) hazardous waste (Class I). It is estimated that approximately 75-percent of

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the soil will be disposed of at a non-RCRA hazardous (Class I) facility and approximately 25- percent of the soil will be disposed of at a non-hazardous (Class II) facility.

Although composite soil samples for waste characterization purposes were collected during the May 2009 investigation,10 additional soil sampling and characterization may be necessary for disposal of materials excavated from grid area G or in the event that debris, visibly contaminated soil, or odorous soil is discovered during excavation activities. Additional soil sampling for waste characterization will be determined based on discussions with the selected disposal facilities in accordance with their acceptance requirements and the characteristics of the wastes encountered. Additional waste characterization may include analyzing leachate from the WET method and TCLP and performing a fish bioassay (CCR Title 26 Section 66261.24(6)). The WET and TCLP leachate will be analyzed for selected metals that were determined to be potential hazardous wastes based on the 10 times the STLC criterion and the 20 times the RCRA regulatory criterion.

5.2.2 Permits

The Contractor will be required to procure necessary permits prior to beginning cleanup activities on the Site. Permits required could include an OSHA excavation permit and Bay Area Air Quality Management District (“BAAQMD”) excavation permit. The Agency has indicated that grading/excavation or encroachment permits will not be required, as this work is being conducted on behalf of the Agency.

To comply with the Construction Activities Storm Water General Permit (State Water Resources Control Board (“SWRCB”) Order No. 99-08-DWQ), the Contractor shall prepare and submit a Notice of Intent to the SWRCB.

5.2.3 Bidding

EKI will assist the Agency with the preparation of the Contract Documents to be used for bidding purposes by remedial contractors. The bidding documents will incorporate the plans or plan requirements outlined in this SCP that describe the procedures required to implement Site cleanup. It is understood that the selected Contractor will be required per the Agency bidding documents to provide the following plans or plan addendums in accordance with requirements outlined in this SCP.

• a Contractor Site-specific Health and Safety Plan; • a Contractor addendum to the Traffic Control and Waste Transportation Plan; • a Contractor addendum to the Decontamination Plan, if deemed necessary by the Contractor; • a Contractor addendum to the Dust Control Plan, if deemed necessary by the Contractor; and • a Contractor addendum to the SWPP.

10 Waste characterization soil samples were not collected from grid areas G and H during the environmental investigation conducted in May 2009.

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5.2.4 Utility Clearance

Prior to initiating excavation activities, Underground Services Alert (“USA”) will be notified by the Contractor and EKI at least two working days in advance of initiating Site cleanup activities to clear excavation areas of utilities. In addition, the planned excavation area will be surveyed for the presence of existing utilities by a private utility locating service.

5.2.5 Initial Site Preparation

Prior to cleanup activities on the Site, the selected Contractor’s field crew will be conducting initial mobilization activities that are non-invasive and will not include the handling of soil that could potentially be hazardous. The allowable activities include setting up field offices (if necessary), constructing a decontamination pad, underground utility line location, preparing dust control measures, and other pre-excavation activities.

5.2.6 Site Security

Prior to cleanup activities on the Site, the selected Contractor shall construct perimeter fencing and lockable gates to restrict access to the Site. Contractor will be responsible for maintaining Site security and will promptly repair, maintain, or install new fencing, as needed, to maintain Site security at all times.

Full-scale cleanup work described in the next section can begin when the preparatory activities described in this section are complete.

5.3 Site Cleanup Activities

5.3.1 Excavation Equipment and Methods

The specific equipment and means that will be utilized to implement this work will be at the discretion of the selected Contractor. It is anticipated that this soil cleanup project can be accomplished with standard excavation and backfill equipment. Some of the equipment expected to be used at the Site includes track-mounted hydraulic excavators, backhoes, water trucks, intermodal bins, end dump trucks, bulldozers, and compactors.

To the extent possible, excavated soils will be directly loaded into trucks for off-Site disposal to reduce handling and potential dust emissions. Trucks will then be covered and transported to designated disposal facilities permitted for the waste. To accomplish direct loading of trucks for soil disposal, the majority of identified soil for excavation has been pre-characterized and will be designated as acceptable to the selected, permitted disposal facilities prior to the start of soil cleanup activities. Refer to the Traffic Control and Waste Transportation Plan in Appendix B for more specific details.

Per Emeryville’s noise ordinance, work hours are limited to weekdays between 7 am and 6 pm. However, it is anticipated that actual work hours for this project will be limited to between 7 am

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and 4 pm. The Contractor shall comply with all local sound control and voice level rules, regulations and ordinances which apply to any work performed.

Excavated soils that may potentially require waste characterization during soil cleanup activities and prior to off-Site disposal will be stockpiled or loaded directly into lined intermodal bins. Stockpiled soil or soil placed in intermodal bins will be handled as potential hazardous waste until proven otherwise. Soil stockpiles will be managed in accordance with procedures outlined in the Dust Control Plan and the SWPPP (Appendix D and F, respectively). Stockpiled soil will be placed on plastic sheeting (minimum 10-mil thickness) and securely covered with plastic sheeting (minimum 10-mil thickness). The intermodal bins can be stored on-Site, allowing the soil within the bin to be sampled, covered, and stored until characterization for disposal is completed. The intermodal bins can be transported by truck. All stockpiles or bins will be covered at the end of each work day and when not being actively handled. After classifying the soil stockpiles or individual bins of soil for the appropriate disposal facilities, the soil will be trucked to permitted off-Site disposal facilities.

Dewatering is not anticipated to be conducted during cleanup activities. If necessary, water removed from the excavation will be stored on-Site and will be transported and disposed at an appropriately permitted off-Site facility or facilities in accordance with methods and procedures described in the Traffic Control and Waste Transportation Plan (Appendix B).

5.3.2 Air Monitoring

Control of dust and airborne COPCs is a significant concern for this project. During active Site cleanup activities, air monitoring will be performed at the Site perimeter in accordance with the AMP (Appendix E) to evaluate if dust control methods applied by the Contractor are adequate to protect the surrounding community from exposure to dust and airborne COPCs. Specific dust control techniques that the Contractor will implement during Site cleanup activities are described in the Dust Control Plan (Appendix D).

In addition to perimeter air monitoring, personal air monitoring will be performed by the Contractor to assess potential health and safety impacts to on-Site workers. A plan for personal air monitoring will be included in the Contractor’s HSP. A plan for personal air monitoring of EKI field representatives is included in the Site-specific HSP included in Appendix I.

In accordance with the EKI Site-specific HSP, included in Appendix I, field personnel will perform air monitoring with a direct reading OVM in the breathing zone at each EKI work area during remediation activities to evaluate the work environment and be protective of EKI field representatives. Air monitoring to evaluate the work environment and be protective of the Contractor’s field personnel will be described in the Contractor’s Site-specific HSP.

5.3.3 Transportation and Off-Site Disposal of Excavated Soils

Soil will be excavated and direct loaded, to the extent possible, into trucks for transportation to off-Site disposal facilities that are permitted to accept specific classifications of wastes. Soil and debris from the Site will be transported and disposed in accordance with the Traffic Control and

EKI A90007.00 5-8 Horton Landing Park Emeryville, California

Waste Transportation Plan (Appendix B). Permitted disposal facilities for the various waste classifications will be identified by the Contractor in the Contractor’s addendum to the Traffic Control and Waste Transportation Plan.

5.3.4 Backfill and Site Restoration

After excavation activities are completed, the excavation areas will be surveyed, then backfilled and compacted. To the extent necessary for the park and bridge development, the excavations will be backfilled with clean import fill and compacted to specifications to be provided by the Agency in the bid documents. Excavations conducted for subgrade utilities and significant plantings, such as trees, will also be backfilled with clean imported soils. Final grading of the backfill will be accomplished in accordance with specifications provided by the Agency in the bid documents.

Import fill, for backfilling of excavations, may be obtained from a variety of as yet unidentified sources. The screening of these fill soils for environmental concerns will be undertaken following the DTSC guidance Information Advisory – Clean Imported Fill Material (DTSC, 2001b). The basic elements of this guidance are:

1. Determining the site use history of the soil source; 2. Identifying the COPCs associated with the historical uses or natural characteristics of the soil source; and 3. Performing testing of representative soil samples.

The results of the characterization activities regarding fill material will be provided to the Site Manager for review prior to the importation of the soils. The information will also be documented in the closure report to be prepared at the completion of the remediation activities (see Section 3.3). The subsections below provide procedures for collecting and analyzing import fill samples and for evaluating analytical data to determine if import fill quality is suitable for use as backfill material at the Site.

Geotechnical analysis will also be performed to generate compaction curves for in-place compaction testing that will be performed during backfill operations. Backfill requirements will be consistent with the development plan for the Site.

5.3.4.1 Fill Sampling Specifications

Fill material to be used at the Site will include import fill. Before import fill may be brought on- Site by the Contractor, the Contractor will collect samples of the import fill material at its source for both chemical and geotechnical testing purposes. Import fill sampling frequencies will be consistent with DTSC guidance (DTSC, 2001b). The volume of import fill likely to be required is greater than 5,000 cubic yards. Therefore, import fill samples would be collected at a frequency of twelve samples for the first 5,000 cubic yards of fill and one sample per additional 1,000 cubic yards of fill (DTSC, 2001b), given that the fill originates from the same source.

EKI A90007.00 5-9 Horton Landing Park Emeryville, California

Fill samples will be analyzed for TPH, VOCs, SVOCs, Title 22 metals, percent moisture, organochlorine pesticides, and PCBs. Additional analyses may be deemed necessary depending on soil sources and associated site history for import fill. Analytical data for backfill will be reviewed by the Agency and the Client Representative in consultation with the Site Manager prior to being transported to the Site.

If samples from the potential fill source(s) have detections of analytes above the expected reporting limits listed in the QAPP (Appendix H), the fill material may be accepted if Site- specific primary COPCs and other analytes were detected below residential screening criteria such as ESLs, CHHSLs, or EPA-SLs, or below applicable cleanup goals for other sites throughout Emeryville with similar future land use as determined by the Agency and the Client Representative in consultation with the Site Manager. Geotechnical testing will be conducted to verify the backfill is placed in accordance with the Contract Documents.

5.3.4.2 Fill Sampling Procedures

Fill soil samples requiring chemical analysis will be collected in pre-cleaned brass or stainless steel liners or glass jars. Brass or stainless steel liners or glass jar will be driven directly into the pile of fill soil. If liners are used, both ends of the brass or stainless steel liner will be covered with Teflon sheets and capped with plastic end caps. Samples to be analyzed for TPH-g and VOCs will be collected in 5-gram EnCore samplers. A sample label will be attached to each sample container. Samples for chemical analysis will be packaged in zip-closure plastic bags and then placed on ice in a cooler for storage and transport to the analytical laboratory under chain-of-custody procedures. Sample naming, labeling, handling, transport, and chain-of- custody procedures are described in the SAP (see Appendix G).

5.4 Site Cleanup Completion Report

At the completion of Site cleanup, EKI will prepare a completion report on behalf of the Agency that describes implementation of the Site cleanup activities. The report will contain the following items:

• Summary of Site cleanup field activities and observations; • Documentation of implementation of and conformance with the Plans specified as Appendix B to I; • Documentation of laboratory analytical results for import fill or other sampling needs as deemed necessary based on field observations and conditions; and • Documentation of final extent of excavation.

5.5 Deed Restriction

A deed restriction will be recorded for the Site at the completion of the remedial activities to prohibit the use of the property for residential housing, day care facilities, nursing homes, hospitals, and any other institutions where children, elderly or the infirm would be present for

EKI A90007.00 5-10 Horton Landing Park Emeryville, California

extended periods of time, because the Site is not going to be remediated to unrestricted use levels.

5.6 Capping of the Site

The Site will be capped after completion of the remedial activities as necessary to avoid direct contact with soils containing COPCs above remedial goals by future Site users (i.e., park patrons). The cap will consist of one of the following cap materials: clean soil (including landscaped areas) with a minimum thickness of 1 foot, above ground structures (like the pedestrian ramp), and concrete pavement to be constructed as part of redevelopment. The use of these permeable cap materials is considered appropriate for the Site because identified COPCs consist primarily of high molecular weight petroleum hydrocarbons, metals, or other low mobility COPCs that are not volatile and are not prone to leaching to groundwater.

The requirements for monitoring and maintaining the cap will be described in the SMP to be prepared for the Site.

Construction or maintenance workers may occasionally be required to perform subsurface work in the soil beneath the cap. For those situations, worker health and safety requirements (e.g., good work practices, gloves, etc.) and soil management requirements will be implemented as will be described in the future SMP to mitigate the potential health risks.

EKI A90007.00 5-11 Horton Landing Park Emeryville, California

6.0 PROJECT SCHEDULE

Site cleanup activities are planned as part of the bridge and park construction activities in the Spring/Summer of 2010. Excavation activities are expected to be completed in approximately 2 weeks.

EKI A90007.00 6-1 Horton Landing Park Emeryville, California

7.0 SITE MANAGEMENT AND POST-SITE CLEANUP OPERATIONS

Procedures for Site management, security, and safety are provided in the plans and requirements for plan preparation included as Appendices B to I to this SCP.

Final limits of the excavations will be generally surveyed by a licensed surveyor and the survey information will be added to the completion report for the project.

At the completion of Site cleanup activities, the installation of a cap (consisting of clean soil, pavement, and above grade structures) will require the development of an operations and maintenance plan, which will be described in the SMP to be prepared for the Site. Additionally, a deed restriction will be recorded for the Site, which will be available at the City.

EKI A90007.00 7-1 Horton Landing Park Emeryville, California

8.0 REFERENCES

CAL/EPA, 2005. Use of California Human Health Screening Levels ("CHHSLs") in Evaluation of Contaminated Properties, California Environmental Protection Agency, January 2005.

CAL/EPA, 2009a. Revised California Human Health Screening Level for Beryllium, California Environmental Protection Agency, March 2009.

CAL/EPA, 2009b. Revised California Human Health Screening Level for Lead (Review Draft), California Environmental Protection Agency, 14 May 2009.

DHS, 2009. MCLs, DLRs, and PHGs for Regulated Drinking Water Contaminants, California Department of Health Services, 17 November 2009.

CDM, 2009. Feasibility Study, Sherwin-Williams Site, 1450 Sherwin Avenue, Emeryville, California, Camp Dresser & McKee, Inc., 1 April 2009.

DTSC, 1997. Selecting Inorganic Constituents as Chemicals of Potential Concern at Risk Assessments at Hazardous Waste Sites and Permitted Facilities, California Environmental Protection Agency, Department of Toxic Substances Control, February 1997.

DTSC, 1999. Preliminary Endangerment Assessment Guidance Manual, California Environmental Protection Agency, Department of Toxic Substances Control, Second Printing. June 1999.

DTSC, 2001a. Transportation Plan –Guidance for Developing Transportation Plans for Removal or Remedial Actions, California Environmental Protection Agency, Department of Toxic Substances Control, Interim Final, 5 December 2001 (update of Transportation Plan Preparation Guidance for Site Remediation, dated May 1994).

DTSC, 2001b. Information Advisory - Clean Imported Fill Material, California Environmental Protection Agency, Department of Toxic Substances Control, October 2001.

EKI, 2002a. Final Remedial Action Plan/Risk Management Plan, Oakland Army Base, Oakland, California, Erler & Kalinowski, Inc., 27 September 2002.

EKI, 2002b. Draft Summary of Soil and Groundwater Sampling Conducted in the Vicinity of Proposed Building13 and Horton Street Landing Linear Park, Chiron Corporation, Emeryville, California, Erler & Kalinowski, Inc., 17 December 2002.

EKI, 2003. Summary of Soil and Groundwater Sampling Conducted in the Vicinity of Proposed Horton Street Landing Linear Park, Chiron Corporation, Emeryville, California, Erler & Kalinowski, Inc., 2 May 2003.

EKI A90007.00 8-1 Horton Landing Park Emeryville, California

EKI, 2004a. Remediation Plan Parcel 8, Union Pacific Railroad Properties, Emeryville, California, Erler & Kalinowski, Inc., January 2004.

EKI, 2004b. Remediation Plan Parcels 1, 2, 3, 4, and 6, Former Union Pacific Railroad Properties, Emeryville, California, Erler & Kalinowski, Inc., June 2004.

EKI, 2004c. Justification of Remedial Goals for Arsenic and TPH, Former Union Pacific Railroad Parcel 7, Emeryville, California, Erler & Kalinowski, Inc., 25 October 2004.

EKI, 2007a. Revised First Five-Year Review, Bay Street Project Area, California, Erler & Kalinowski, Inc., 20 March 2007.

EKI, 2007b. Technical Memorandum: Background Concentrations of Arsenic in Soil at Campus Bay, Campus Bay Site, Richmond, California, Erler & Kalinowski, Inc., 23 July 2007.

EKI, 2008. Final Site Cleanup Plan, UPRR Parcel D, Emeryville, California, Erler & Kalinowski, Inc., March 2008.

EKI, 2009a. Site Use History, Horton Street Landing, Emeryville, California, Erler & Kalinowski, Inc., 24 February 2009.

EKI, 2009b. Analysis of Brownfield Cleanup Alternatives, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., 25 March 2009.

EKI, 2009c. Soil and Groundwater Investigation Data Report, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., 20 July 2009.

Harding, J.P., 1949. The Use of Probability Paper for the Graphical Analysis of Polymodal Frequency Distributions, Jour. Marine Biol. Assoc. U.K., Vol. 28, pp. 141-163.

LBNL, 2002. Analysis of Background Distributions of Metals in the Soil at Lawrence Berkeley National Laboratory, June 2002.

PROBPLOT, 1989, PROBPLOT, An Interactive Computer Program to Fix Mixtures of Normal (or Log Normal) Distributions with Maximum Likelihood Optimization Procedures (C.R. Stanley), Association of Applied Geochemists Special Volume 14. SFRWQCB, 2008. Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater (Interim Final), San Francisco Bay Regional Water Quality Control Board, May 2008.

Sinclair, A.J. 1976, Applications of Probability Graphs in Mineral Exploration. Special Volume No. 4, Association of Exploration Geochemists, Richmond Printers Ltd.

SWQTF, 1993. California Storm Water Best Management Practice Handbooks, Storm Water Quality Task Force, March 1993

EKI A90007.00 8-2 Horton Landing Park Emeryville, California

U.S. EPA, 1989. Risk Assessment Guidance for Superfund, Volume 1- Human Health Evaluation Manual, U.S. Environmental Protection Agency, December 1989.

U.S. EPA, 1992. Guidance for Data Useability in Risk Assessment (Part A), Final. Office of Emergency and Remedial Response, Publication 9285.7-09A, U.S. Environmental Protection Agency, April 1992.

U.S. EPA, 2002. Supplemental Guidance for Developing Soil Screening Levels for Superfund Sites, U.S. Environmental Protection Agency, December 2002.

U.S. EPA, 2009a. Update of the Adult Lead Methodology`s Default Baseline Blood Lead Concentration and Geometric Standard Deviation Parameters, U.S. Environmental Protection Agency, June 2009.

U.S. EPA, 2009b. Regional Screening Table, U.S. Environmental Protection Agency, December 2009.

EKI A90007.00 8-3 Horton Landing Park Emeryville, California Table 1-1 Summary of Laboratory Analytical Methods for Soil and Grab Groundwater Samples Horton Landing Park Emeryville, California

Soil Sample Analyses (a) Groundwater Sample Analyses (b)(c)

Sample Depth

Grid Area Sample ID (ft bgs) Composite Soil Sample? Sample? Duplicate Blind VOCs by EPA Method 8260 TPH as Gasoline by EPA Method 8015 TPH as Diesel by EPA Method 8015 TPH as Motor Oil by EPA Method 8015 by EPA SVOCs Method 8270 by EPA and Grease Oil Method 9071 22 Title Method 6020 and by EPA 7471 Method 6020 by EPA Arsenic Method 6020 by EPA Lead WET Arsenic WET Barium WET Chromium WET Copper WET Lead TCLP Arsenic TCLP Lead Pesticides Organochloride Method 8081 by EPA Herbicides Chlorinated Method 8151 by EPA Moisture by ASTM Percent 2216 Method D TPH as Gasoline by EPA Method 8015 TPH as Diesel by EPA Method 8015 TPH as Motor Oil by EPA Method 8015 VOCs by EPA Method 8260 Title 22 by EPA Method 200.8 A-0-2 0 - 2(d) Yes No X X X X X A1-2.5-3 2.5 - 3 No No X X A3-NAT1 2.5 - 3 No No X X X X X A J3-NAT1 2.5 - 3 No Yes X X X X X A4-NAT1 2.5 - 3 No No X X X X X A6-NAT1 2.5 - 3 No No X X X X X A-COMP1 na (e) Yes No X X X X X X X B-0-2 0 - 2(d) Yes No X X X X X B1-2.5-3 2.5 - 3 No No X X B4-NAT1 2.5 - 3 No No X X X X X J4-NAT1 2.5 - 3 No Yes X X X X X B B5-NAT1 2.5 - 3 No No X X X X X B8-NAT1 4 - 4.5 No No X X X X X B9-NAT1 3 - 3.5 No No X X X X X B-COMP1 na (e) Yes No X X X X X B-COMP2 na (e) Yes No X X X X X X X X X C-0-2 0 - 2(d) Yes No X X X X X C2-2.5-3 2.5 - 3 No No X X C4-NAT1 3.5 - 4 No No X X X X X C4-NAT2 4 - 4.5 No No X X C C6-NAT1 4 - 4.5 No No X X X X X C6-NAT2 4.5 - 5 No No X X C-COMP1 na (e) Yes No X X X X X X J-COMP1 na (e) Yes Yes X X X X X X D-0-2 0 - 2(d) Yes No X X X X X D2-3-3.5 3 - 3.5 No No X X D4-NAT1 3.5 - 4 No No X X X X X D5-NAT1-EAST 2.5 - 3 No No X X X X X D5-NAT1-WEST 3.5 - 4 No No X X X X X D D5-NAT2-WEST 4 - 4.5 No No X X D8-NAT1 3.5 - 4 No No X X X X X D9-NAT1 3.5 - 4 No No X X X X X D9-NAT2 4 - 4.5 No No X X D-COMP1 na (e) Yes No X X X X X X X X X X D-COMP2 na (e) Yes No X X X X X X X

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Soil Sample Analyses (a) Groundwater Sample Analyses (b)(c)

Sample Depth

Grid Area Sample ID (ft bgs) Composite Soil Sample? Sample? Duplicate Blind VOCs by EPA Method 8260 TPH as Gasoline by EPA Method 8015 TPH as Diesel by EPA Method 8015 TPH as Motor Oil by EPA Method 8015 by EPA SVOCs Method 8270 by EPA and Grease Oil Method 9071 22 Title Method 6020 and by EPA 7471 Method 6020 by EPA Arsenic Method 6020 by EPA Lead WET Arsenic WET Barium WET Chromium WET Copper WET Lead TCLP Arsenic TCLP Lead Pesticides Organochloride Method 8081 by EPA Herbicides Chlorinated Method 8151 by EPA Moisture by ASTM Percent 2216 Method D TPH as Gasoline by EPA Method 8015 TPH as Diesel by EPA Method 8015 TPH as Motor Oil by EPA Method 8015 VOCs by EPA Method 8260 Title 22 by EPA Method 200.8 E-0-2 0 - 2(d) Yes No X X X X X E1-3.5-4 3.5 - 4 No No X X E3-3-3.5 3 - 3.5 No No X X X X X E3-NAT1 3.5 - 4 No No X X X X X J5-NAT1 3.5 - 4 No Yes X X X X X E5-NAT1 4 - 4.5 No No X X X X X E9-NAT1 3.5 - 4 No No X X X X X E10-NAT1 3 - 3.5 No No X X X X X E E12-NAT1 3 - 3.5 No No X X X X X E13-NAT1 2.5 - 3 No No X X X X X E-COMP1 na (e) YesNoXXX XXXX X E-COMP2 na (e) Yes No X X X X X X X X X X J-COMP2 na (e) Yes Yes X X X X X X X E-COMP3 na (e) Yes No X X X X X X X E9-GGW1 11.5 na No XXXXX J1-GGW1 11.5 na Yes XXXXX E10-GGW1 16.5 na No XXXXX F-0-2 0 - 2(d) Yes No X X X X X F2-2-2.5 2 - 2.5 No No X X F4-FILL1 0 - 2.5 No No X X X F4-NAT1 3 - 3.5 No No X X X X X F4-NAT2 3.5 - 4 No No X X F6-NAT1 6.5 - 7 No No X X X X X F F7-NAT1 3.5 - 4 No No X X X X X F7-NAT2 4 - 4.5 No No X X F9-NAT1 6.25 - 6.75 No No X X X X X F-COMP1 na (e) Yes No X X X X X X F-COMP2 na (e) YesNoXXX XXXXXXX F4-GGW1 11.5 na No XXXXX G-0-2 0 - 2(d) Yes No X X X X X G1-2.5-3 2.5 - 3 No No X X G G1-12-12.5 12 - 12.5 No No X X X X X G1-12.5-13 12.5 - 13 No No X X G1-0-19 19 na No XX XX

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Soil Sample Analyses (a) Groundwater Sample Analyses (b)(c)

Sample Depth

Grid Area Sample ID (ft bgs) Composite Soil Sample? Sample? Duplicate Blind VOCs by EPA Method 8260 TPH as Gasoline by EPA Method 8015 TPH as Diesel by EPA Method 8015 TPH as Motor Oil by EPA Method 8015 by EPA SVOCs Method 8270 by EPA and Grease Oil Method 9071 22 Title Method 6020 and by EPA 7471 Method 6020 by EPA Arsenic Method 6020 by EPA Lead WET Arsenic WET Barium WET Chromium WET Copper WET Lead TCLP Arsenic TCLP Lead Pesticides Organochloride Method 8081 by EPA Herbicides Chlorinated Method 8151 by EPA Moisture by ASTM Percent 2216 Method D TPH as Gasoline by EPA Method 8015 TPH as Diesel by EPA Method 8015 TPH as Motor Oil by EPA Method 8015 VOCs by EPA Method 8260 Title 22 by EPA Method 200.8 B-1-1-7 1 - 7(f) No No X X X B-1-4-4.5 4 - 4.5 No No X B-1-10.5-11 10.5 - 11 No No X X X X B-2-1-7 1 - 7(f) No No X X X H B-2-3.5-4 3.5 - 4 No No X B-2-10.5-11 10.5 - 11 No No X X X X B-1-GW 19 na No XX XX B-2-GW 16 na No XX XX

Abbreviations: ft bgs = feet below ground surface SVOC = semi-volatile organic compound VOCs = volatile organic compounds na = not applicable or not available TCLP = Toxicity Characteristic Leaching Procedure WET = Waste Extraction Test PCBs = polychlorinated biphenyls TPH = total petroleum hydrocarbons

Notes: (a) Soil samples were analyzed by K-Prime Laboratories of Santa Rosa, California or by North Coast Laboratories, Inc., of Arcata, California. (b) Grab groundwater samples were analyzed by K-Prime, Inc. Consulting Analytical Chemists of Santa Rosa, California. (c) Sample depth reflects the base of the borehole at the time of grab groundwater sample collection. (d) Samples collected in 2002 from the 0 to 2 foot depth range from two boreholes within each grid area were homogenized in the field and then homogenized together to form a composite sample representative of soil from that grid area. (e) Samples collected in 2009 from the fill material of four boreholes within each grid area were homogenized in the field and then homogenized together to form a composite sample representative of soil from that grid area. (f) Samples collected in 2002 from the 1 to 4 and 4 to 7 foot depth range were homogenized in the field.

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Metals by EPA 6020 (mg/kg) (a)(b)

Grid Soil Sample Depth Sample Collection Area Sample ID (ft bgs) Date Antimony Arsenic Barium Beryllium Cadmium Chromium Total Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc A-0-2 0 - 2 25-Nov-02 <2.5 86.1 265 <2.5 <2.5 35.1 7.35 51.3 77.1 0.29 <2.5 32.2 <2.5 <2.5 <2.5 24.6 75.1 A-COMP1 na 6-May-09 <2.5 41.4 356 <2.5 <2.5 38.2 5.39 101 134 <0.1 <2.5 29.4 <2.5 <2.5 <2.5 22.5 120 A3-NAT1 2.5 - 3 6-May-09 -- 3.81 ------8.05 ------A J3-NAT1 2.5 - 3 6-May-09 -- 2.78 ------7.5 ------A4-NAT1 2.5 - 3 6-May-09 -- 11.8 ------12.1 ------A6-NAT1 2.5 - 3 6-May-09 -- 6.55 ------5.7 ------B-0-2 0 - 2 25-Nov-02 <2.5 43.1 131 <2.5 <2.5 34.6 8.63 55.8 112 0.58 <2.5 36.4 <2.5 <2.5 <2.5 28.3 98.5 B-COMP1 na 6-May-09 <2.5 27.6 162 <2.5 <2.5 25 5.33 49.8 77.9 <0.1 <2.5 18.5 <2.5 <2.5 <2.5 29.2 173 B-COMP2 na 6-May-09 <2.5 117 239 <2.5 <2.5 39 6.94 69.8 146 <0.1 <2.5 19.4 <2.5 <2.5 <2.5 27.2 95.1 B4-NAT1 2.5 - 3 6-May-09 -- 3.51 ------5.8 ------B J4-NAT1 2.5 - 3 6-May-09 -- 2.72 ------4.34 ------B5-NAT1 2.5 - 3 5-May-09 -- 2.96 ------4.74 ------B8-NAT1 4 - 4.5 6-May-09 -- 2.67 ------3.99 ------B9-NAT1 3 - 3.5 5-May-09 -- 3.71 ------9.1 ------C-0-2 0 - 2 25-Nov-02 <2.5 90.4 367 <2.5 <2.5 32.2 7.97 77.3 147 1.68 <2.5 33.6 <2.5 <2.5 <2.5 32.9 130 C-COMP1 na 6-May-09 <2.5 68.4 225 <2.5 <2.5 35 6.22 57.4 82.1 <0.1 <2.5 24.8 <2.5 <2.5 <2.5 <2.5 95.2 J-COMP1 na 6-May-09 <2.5 63.5 160 <2.5 <2.5 35.3 6.8 68.4 74.8 <0.1 <2.5 25 <2.5 <2.5 <2.5 32.7 87.5 C C4-NAT1 3.5 - 4 6-May-09 -- 33.7 ------5.25 ------C4-NAT2 4 - 4.5 6-May-09 -- 59.1 ------C6-NAT1 4 - 4.5 5-May-09 -- 23.7 ------5.65 ------C6-NAT2 4.5 - 5 5-May-09 36.5 ------D-0-2 0 - 2 25-Nov-02 <2.5 99.1 441 <2.5 <2.5 36.6 10.3 119 307 1.27 8.99 47.3 <2.5 <2.5 <2.5 37.3 254 D-COMP1 na 5-May-09 <2.5 190 443 <2.5 <2.5 73.7 18.6 158 146 0.212 4.35 74.2 <2.5 <2.5 <2.5 57 370 D-COMP2 na 5-May-09 <2.5 110 259 <2.5 <2.5 48.3 17.1 142 90.7 <0.1 3.14 64.3 <2.5 <2.5 <2.5 50.2 243 D4-NAT1 3.5 - 4 5-May-09 -- 3.69 ------4.58 ------D5-NAT1-EAST 2.5 - 3 5-May-09 -- 2.97 ------12.5 ------D D5-NAT1-WEST 3.5 - 4 5-May-09 -- 86 ------23.9 ------D5-NAT2-WEST 4 - 4.5 5-May-09 133 ------D8-NAT1 3.5 - 4 5-May-09 -- 4.6 ------19.3 ------D9-NAT1 3.5 - 4 5-May-09 -- 45.6 ------74.4 ------D9-NAT2 4 - 4.5 5-May-09 4.23 ------

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Metals by EPA 6020 (mg/kg) (a)(b)

Grid Soil Sample Depth Sample Collection Area Sample ID (ft bgs) Date Antimony Arsenic Barium Beryllium Cadmium Chromium Total Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc E-0-2 0 - 2 25-Nov-02 <2.5 60.5 405 <2.5 3.45 54.9 10.8 200 517 2.49 6.46 58.9 <2.5 <2.5 <2.5 31.5 516 E-COMP1 na 5-May-09 <2.5 73.1 500 <2.5 2.63 73.1 28.8 208 655 0.287 <2.5 129 <2.5 <2.5 <2.5 63.7 730 E-COMP2 na 5-May-09 <2.5 107 515 <2.5 <2.5 51.3 14.3 226 188 0.231 2.88 54.2 <2.5 <2.5 <2.5 45.7 436 J-COMP2 na 5-May-09 <2.5 31.7 506 <2.5 <2.5 31.7 7.26 90.6 157 <0.1 <2.5 26.8 <2.5 <2.5 <2.5 26.1 213 E-COMP3 na 4-May-09 <2.5 51.3 389 <2.5 3.19 43.4 11.6 152 309 0.645 2.56 43.5 <2.5 <2.5 <2.5 38.1 477 E3-3-3.5 3 - 3.5 5-May-09 -- 5.21 ------44.9 ------E E3-NAT1 3.5 - 4 5-May-09 -- 3.92 ------6.94 ------J5-NAT1 3.5 - 4 5-May-09 -- 7.15 ------14.3 ------E5-NAT1 4 - 4.5 4-May-09 -- 11.1 ------11.6 ------E9-NAT1 3.5 - 4 5-May-09 -- 5.19 ------56.7 ------E10-NAT1 3 - 3.5 4-May-09 -- 10.2 ------38.3 ------E12-NAT1 3 - 3.5 4-May-09 -- 4.21 ------26.8 ------E13-NAT1 2.5 - 3 4-May-09 -- 9.76 ------<2.5 ------F-0-2 0 - 2 25-Nov-02 <2.5 109 217 <2.5 7.12 31.9 9.94 163 744 2.74 <2.5 50.8 <2.5 <2.5 <2.5 28.3 623 F-COMP1 na 4-May-09 <2.5 34.8 222 <2.5 <2.5 35.8 10.7 163 217 0.52 <2.5 42.7 <2.5 <2.5 <2.5 33.8 635 F-COMP2 na 4-May-09 <2.5 66.7 1,020 <2.5 3.19 47.9 12.2 416 218 0.453 2.98 50.9 <2.5 <2.5 <2.5 41.2 1,060 F4-NAT1 3 - 3.5 4-May-09 -- 26 ------<2.5 ------F F4-NAT2 3.5 - 4 4-May-09 13.8 ------F6-NAT1 6.5 - 7 4-May-09 -- 7.75 ------48.5 ------F7-NAT1 3.5 - 4 4-May-09 -- 33.3 ------6.47 ------F7-NAT2 4 - 4.5 4-May-09 -- 19.3 ------F9-NAT1 6.25 - 6.75 4-May-09 -- <2.5 ------4.96 ------G-0-2 0 - 2 22-Nov-02 <2.5 15.9 146 <2.5 <2.5 27.3 9.21 30.7 146 0.29 <2.5 39.7 <2.5 <2.5 <2.5 30.8 91.7 G G1-12-12.5 12 - 12.5 22-Nov-02 <2.5 3.46 77 <2.5 <2.5 34.3 4.7 10.6 4.91 <0.1 <2.5 28.3 <2.5 <2.5 <2.5 23.8 31.2

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 2 of 3 March 2010 Table 2-1 Summary of Soil Analytical Results for Metals Horton Landing Park Emeryville, California

Metals by EPA 6020 (mg/kg) (a)(b)

Grid Soil Sample Depth Sample Collection Area Sample ID (ft bgs) Date Antimony Arsenic Barium Beryllium Cadmium Chromium Total Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc B-1-1-7 1 - 7 1-Oct-02 <2.5 3.44 131 <2.5 <2.5 21.6 6.27 15.5 7.41 0.15 <2.5 23.5 <2.5 <2.5 <2.5 23.8 59.1 B-1-10.5-11 10.5 - 11 1-Oct-02 <2.5 5.22 146 <2.5 <2.5 42.9 10.3 13.9 5.92 0.406 <2.5 42.3 <2.5 <2.5 <2.5 31.1 29.7 H B-2-1-7 1 - 7 1-Oct-02 <2.5 3.44 202 <2.5 <2.5 21.1 5.11 26.3 34.6 0.197 <2.5 28.6 <2.5 <2.5 <2.5 20.1 74.9 B-2-10.5-11 10.5 - 11 1-Oct-02 <2.5 3.21 136 <2.5 <2.5 27.2 15.6 10.4 4.78 0.174 <2.5 64.7 <2.5 <2.5 <2.5 19.7 25.2 CHHSL for Residential Soil 30 0.07 5,200 16 1.7 na 660 3,000 80 18 380 1,600 380 380 5 530 23,000 EPA-SL for Residential Soil 31 0.39 15,000 160 70 na 23 3,100 400 5.6 390 1,500 390 390 na 390 23,000 ESL Direct Exposure for Residential Scenario (Table K-1) (c) 31 0.39 15,000 150 1.7 na 910 31,000 260 6.7 390 1,500 390 390 6.3 78 23,000 ESL Direct Exposure for Construction/Trench Worker (Table K-3) 1,500 15 13,000 110 39 na 94 1,500,000 750 290 19,000 1,300 19,000 19,000 310 3,900 1,200,000 ESL Urban Area Ecotoxicity Criteria (Table A-1) 20 20 750 4 12 na 40 230 200 10 40 150 10 20 na 200 600 ESL Residential Gross Contamination Ceiling Level (Table H-2) 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 500 1,000 1,000 1,000 1,000 1,000 1,000 1,000 20 x TCLP na 100 2,000 na 20 100 na na 100 4 na na 20 100 na na na TTLC 500 500 10,000 75 100 2,500 8,000 2,500 1,000 20 3,500 2,000 100 500 700 2,400 5,000 10 x STLC 150 50 1,000 7.5 10 50 800 250 50 2 3,500 200 10 50 70 240 2,500

Abbreviations: "--" = not analyzed <0.50 = compound not detected at or above indicated laboratory reporting limit CHHSL = California EPA - Use of California Human Health Screening Levels (CHHSLs) in Evaluation of Contaminated Sites - Residential Land Use (January 2005, March 2009, May 2009) EPA-SL = U.S. EPA - Regional Screening Table - Residential Soil (December 2009) ESL = RWQCB, San Francisco Bay Region - Environmental Screening Levels (May 2008) ft bgs = feet below ground surface mg/kg = milligrams per kilogram na = not applicable or not available TCLP = Toxicity Characteristic Leaching Procedure TTLC = Total Threshold Limit Concentration STLC = Soluble Threshold Limit Concentration

Notes: (a) Soil samples were analyzed by K-Prime, Inc. Consulting Analytical Chemists of Santa Rosa, California. (b) Concentrations that equal or exceed CHHSLs, EPA-SLs, or ESLs are shown in bold. (c) Direct exposure values for non-carcinogens are based on a hazard quotient equal to 1.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 3 of 3 March 2010 Table 2-2 Summary of Soil Analytical Results for TPH Horton Landing Park Emeryville, California

TPH by 8015m (mg/kg) (a)(b) (a)(b)

Grid Soil Sample Depth

Area Sample ID Note (ft bgs) Sample Collection Date Grease Oil and 9071 by EPA TPH as TPH Gasoline as Diesel TPH as Motor TPH Oil A-0-2 0 - 2 25-Nov-02 -- 276 -- 1,600 A1-2.5-3 2.5 - 3 25-Nov-02 <1.0 ------A-COMP1 na 6-May-09 -- 55.1 AC 144 -- A A3-NAT1 2.5 - 3 6-May-09 -- <10 <10 -- J3-NAT1 Duplicate 2.5 - 3 6-May-09 -- <10 <10 -- A4-NAT1 2.5 - 3 6-May-09 -- <10 <10 -- A6-NAT1 2.5 - 3 6-May-09 -- <10 <10 -- B-0-2 0 - 2 25-Nov-02 -- 480 -- 3,640 B1-2.5-3 2.5 - 3 25-Nov-02 <1.0 ------B-COMP1 na 6-May-09 -- 72.8 AC 119 -- B-COMP2 na 6-May-09 -- <50 104 -- B B4-NAT1 2.5 - 3 6-May-09 -- <10 <10 -- J4-NAT1 Duplicate 2.5 - 3 6-May-09 <10 <10 B5-NAT1 2.5 - 3 5-May-09 -- <10 <10 -- B8-NAT1 4 - 4.5 6-May-09 -- <10 <10 -- B9-NAT1 3 - 3.5 5-May-09 -- <10 <10 -- C-0-2 0 - 2 25-Nov-02 -- 372 -- 1,260 C2-2.5-3 2.5 - 3 22-Nov-02 <1.0 ------C-COMP1 na 6-May-09 -- <50 125 -- C J-COMP1 Duplicate na 6-May-09 -- <50 105 -- C4-NAT1 3.5 - 4 6-May-09 -- <10 <10 -- C6-NAT1 4 - 4.5 5-May-09 -- <10 <10 -- D-0-2 0 - 2 25-Nov-02 -- 713 -- 3,140 D2-3-3.5 3 - 3.5 22-Nov-02 <1.0 ------D-COMP1 na 5-May-09 -- <50 198 -- D-COMP2 na 5-May-09 -- <50 246 -- D D4-NAT1 3.5 - 4 5-May-09 -- <10 <10 -- D5-NAT1-EAST 2.5 - 3 5-May-09 -- <10 <10 -- D5-NAT1-WEST 3.5 - 4 5-May-09 -- <10 <10 -- D8-NAT1 3.5 - 4 5-May-09 -- <10 <10 -- D9-NAT1 3.5 - 4 5-May-09 -- <10 <10 -- E-0-2 0 - 2 25-Nov-02 -- 1,380 -- 8,520 E1-3.5-4 3.5 - 4 22-Nov-02 <1.0 ------E-COMP1 na 5-May-09 -- <50 133 -- E-COMP2 na 5-May-09 -- <50 166 -- J-COMP2 Duplicate na 5-May-09 -- <50 180 -- E-COMP3 na 4-May-09 -- 65.4 AC 174 -- E3-3-3.5 3 - 3.5 5-May-09 -- 109 <10 -- E E3-NAT1 3.5 - 4 5-May-09 -- <10 <10 -- J5-NAT1 Duplicate 3.5 - 4 5-May-09 -- <10 <10 -- E5-NAT1 4 - 4.5 4-May-09 -- <10 <10 -- E9-NAT1 3.5 - 4 5-May-09 -- <10 <10 -- E10-NAT1 3 - 3.5 4-May-09 -- <10 <10 -- E12-NAT1 3 - 3.5 4-May-09 -- <10 <10 -- E13-NAT1 2.5 - 3 4-May-09 -- <10 <10 --

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 2 March 2010 Table 2-2 Summary of Soil Analytical Results for TPH Horton Landing Park Emeryville, California

TPH by 8015m (mg/kg) (a)(b) (a)(b)

Grid Soil Sample Depth

Area Sample ID Note (ft bgs) Sample Collection Date Grease Oil and 9071 by EPA TPH as TPH Gasoline as Diesel TPH as Motor TPH Oil F-0-2 0 - 2 25-Nov-02 -- 379 -- 2,700 F2-2-2.5 2 - 2.5 22-Nov-02 <1.0 ------F-COMP1 na 4-May-09 -- <50 115 -- F-COMP2 na 4-May-09 -- 130 AC 245 -- F-COMP2 No Silica Gel Cleanup na 4-May-09 -- 151 AC 364 F F4-FILL1 0 - 2.5 4-May-09 -- <10 <10 -- F4-NAT1 3 - 3.5 4-May-09 -- <10 <10 -- F6-NAT1 6.5 - 7 4-May-09 -- <10 <10 -- F7-NAT1 3.5 - 4 4-May-09 -- <10 <10 -- F9-NAT1 6.25 - 6.75 4-May-09 -- <10 <10 -- G-0-2 0 - 2 22-Nov-02 -- 25.2 -- 360 G1-2.5-3 2.5 - 3 22-Nov-02 <1.0 ------G G1-12-12.5 12 - 12.5 22-Nov-02 -- <10 -- 57.5 G-1-12.5-13 12.5 - 13 22-Nov-02 <1.0 ------B-1-4-4.5 4 - 4.5 1-Oct-02 <1.0 <10 -- -- B-1-10.5-11 10.5 - 11 1-Oct-02 <1.0 <10 -- -- H B-2-3.5-4 3.5 - 4 1-Oct-02 <1.0 <10 -- -- B-2-10.5-11 10.5 - 11 1-Oct-02 <1.0 <10 -- -- CHHSL for Residential Soil na na na na EPA-SL for Residential Soil na na na na ESL Direct Exposure for Residential Scenario (Table K-1) (c)(d) 540 540 1,800 1,800 ESL Direct Exposure for Construction/Trench Worker (Table K-3) (d) 21,000 21,000 58,000 58,000 ESL Leaching Concerns, Drinking Water Resource (Table G) 83 83 -- -- ESL Leaching Concerns, Non-Drinking Water Resource (Table G) 180 180 -- -- ESL Residential Gross Contamination Ceiling Level (Table H-2) 100 100 500 500

Abbreviations: "--" = not analyzed <0.50 = compound not detected at or above indicated laboratory reporting limit AC = heavier hydrocarbons contributed to diesel range quantitation CHHSL = California EPA - Use of California Human Health Screening Levels (CHHSLs) in Evaluation of Contaminated Sites - Residential Land Use (January 2005, March 2009, May 2009) EPA-SL = U.S. EPA - Regional Screening Table - Residential Soil (December 2009) ESL = RWQCB, San Francisco Bay Region - Environmental Screening Levels (May 2008) ft bgs = feet below ground surface mg/kg = milligrams per kilogram na = not applicable or not available TPH = total petroleum hydrocarbons

Notes: (a) Soil samples were analyzed by K-Prime, Inc. Consulting Analytical Chemists of Santa Rosa, California. (b) Concentrations that equal or exceed ESLs are shown in bold. (c) The ESL for gasolines was used for TPH as gasoline, the ESL for middle distillates was used for TPH as diesel and the ESL for residual fuels was used for TPH as motor oil and for oil and grease. (d) Direct exposure values for non-carcinogens are based on a hazard quotient equal to 1.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 2 of 2 March 2010 Table 2-3 Summary of Soil Analytical Results for SVOCs Horton Landing Park Emeryville, California

SVOCs by EPA 8270 (mg/kg) (a)(b)

Grid Soil Sample Depth Area Sample ID (ft bgs) Sample Collection Date Bis (2-ethylhexyl) phthalate Chrysene Fluoranthene Pyrene Other SVOCs A A-0-2 0 - 2 25-Nov-02 <1.65 <1.65 <1.65 <1.65 ND B B-0-2 0 - 2 25-Nov-02 <1.65 <1.65 <1.65 <1.65 ND C C-0-2 0 - 2 25-Nov-02 <1.65 <1.65 2.58 3.85 ND D D-0-2 0 - 2 25-Nov-02 <1.65 <1.65 <1.65 <1.65 ND E E-0-2 0 - 2 25-Nov-02 <1.65 1.78 5.09 7.11 ND F F-0-2 0 - 2 25-Nov-02 <1.65 <1.65 <1.65 <1.65 ND G-0-2 0 - 2 22-Nov-02 <0.33 <0.33 <0.33 <0.33 ND G G1-12-12.5 12 - 12.5 22-Nov-02 0.905 <0.33 <0.33 <0.33 ND CHHSL for Residential Soil na na na na na EPA-SL for Residential Soil 35 15 2,300 1,700 na ESL Direct Exposure for Residential Scenario (Table K-1) (c) 35 62 2,300 3,400 na ESL Direct Exposure for Construction/Trench Worker (Table K-3) (c) 1,400 2,400 70,000 100,000 na ESL Leaching Concerns, Drinking Water Resource (Table G) 780 23 60 85 na ESL Leaching Concerns, Non-Drinking Water Resource (Table G) 780 23 60 85 na ESL Residential Gross Contamination Ceiling Level (Table H-2) 500 1,000 500 500 na

Abbreviations: <0.50 = compound not detected at or above indicated laboratory reporting limit CHHSL = California EPA - Use of California Human Health Screening Levels (CHHSLs) in Evaluation of Contaminated Sites - Residential Land Use (January 2005, March 2009, May 2009) EPA-SL = U.S. EPA - Regional Screening Table - Residential Soil (December 2009) ESL = RWQCB, San Francisco Bay Region - Environmental Screening Levels (May 2008) ft bgs = feet below ground surface mg/kg = milligrams per kilogram na = not applicable or not available ND = not detected above laboratory reporting limits SVOC = semi-volatile organic compound

Notes: (a) Soil samples were analyzed by K-Prime, Inc. Consulting Analytical Chemists of Santa Rosa, California. (b) Concentrations that equal or exceed EPA-SLs or ESLs are shown in bold. (c) Direct exposure values for non-carcinogens are based on a hazard quotient equal to 1.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 Table 2-4 Summary of Soil Analytical Results for PCBs, Organochloride Pesticides, and Herbicides Horton Landing Park Emeryville, California

(a)(b) PCBs by EPA 8082 (mg/kg) Organochloride Pesticides by EPA 8081 (mg/kg)

Chlorinated Herbicides by EPA 8151A (mg/kg) (b)(c)(d) Soil Sample Depth Grid Area Sample ID (ft bgs) Sample Collection Date Aroclor 1260 Aroclor PCBs Other DDD DDE DDT Dieldrin Pesticides Other

A-0-2 0 - 2 25-Nov-02 0.217 ND ------ND A A-COMP1 na 6-May-09 -- -- 0.0332 <0.01 0.0269 <0.01 ND -- B-0-2 0 - 2 25-Nov-02 0.127 ND ------ND B B-COMP2 na 6-May-09 -- -- <0.01 <0.01 <0.01 <0.01 ND -- C C-0-2 0 - 2 25-Nov-02 0.752 ND ------ND D-0-2 0 - 2 25-Nov-02 0.624 ND ------ND D D-COMP1 na 5-May-09 -- -- 0.0209 <0.01 0.0235 0.013 ND -- E-0-2 0 - 2 25-Nov-02 0.506 ND ------ND E E-COMP2 na 5-May-09 -- -- 0.199 0.0611 0.429 <0.01 ND -- J-COMP2 na 5-May-09 -- -- 0.014 0.0633 0.467 <0.01 ND -- F-0-2 0 - 2 25-Nov-02 0.265 ND ------ND F F-COMP2 na 4-May-09 -- -- 1.37 0.456 1.53 0.589 ND -- G-0-2 0 - 2 22-Nov-02 <0.1 ND ------ND G G1-12-12.5 12 - 12.5 22-Nov-02 <0.1 ND ------ND CHHSL for Residential Soil 0.089 0.089 2.3 1.6 1.6 0.035 na na EPA-SL for Residential Soil 0.22 0.14 - 3.9 2 1.4 1.7 0.03 na na ESL Direct Exposure for Residential Scenario (Table K-1) 0.22 0.22 2.4 1.7 1.7 0.034 na na ESL Direct Exposure for Construction/Trench Worker (Table K-3) 8.4 8.4 120 87 87 1.6 na na ESL Leaching Concerns, Drinking Water Resource (Table G) 6.3 6.3 750 1,100 4.3 0.0023 na na ESL Leaching Concerns, Non-Drinking Water Resource (Table G) 6.3 6.3 750 1,100 4.3 0.0023 na na ESL Residential Gross Contamination Ceiling Level (Table H-2) 500 500 500 500 1,000 1,000 na na TTLC 50 50 1 1 1 8 na na

Abbreviations: "--" = not analyzed <0.50 = compound not detected at or above indicated laboratory reporting limit CHHSL = California EPA - Use of California Human Health Screening Levels (CHHSLs) in Evaluation of Contaminated Sites - Residential Land Use (January 2005, March 2009, May 2009) EPA-SL = U.S. EPA - Regional Screening Table - Residential Soil (December 2009) ESL = RWQCB, San Francisco Bay Region - Environmental Screening Levels (May 2008) ft bgs = feet below ground surface mg/kg = milligrams per kilogram na = not applicable or not available ND = not detected above laboratory reporting limits PCBs = polychlorinated biphenyls TTLC = Total Threshold Limit Concentration

Notes: (a) Soil samples were analyzed by K-Prime, Inc. Consulting Analytical Chemists of Santa Rosa, California. (b) Concentrations that equal or exceed CHHSLs, EPA-SLs, or ESLs are shown in bold. (c) Soil samples were analyzed by North Coast Laboratories, Inc., of Arcata, California. (d) Reporting limits for sample analysis ranged from 0.2 mg/kg to 100 mg/kg.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 Table 2-5 Summary of Soil Analytical Results for VOCs Horton Landing Park Emeryville, California

VOCs by EPA 8260 (mg/kg) (a)(b)

Soil Sample Depth Sample Collection Grid Area Sample ID (ft bgs) Date Benzene Tetrachloroethene Toluene Trichloroethene 1,2,3-Trichloropropane VOCs Other

A A1-2.5-3 2.5 - 3 25-Nov-02 <0.00143 <0.00143 <0.00143 0.00166 <0.00143 ND B B1-2.5-3 2.5 - 3 25-Nov-02 <0.00127 <0.00127 <0.00127 <0.00127 <0.00127 ND C C2-2.5-3 2.5 - 3 22-Nov-02 <0.00128 0.00252 <0.00128 <0.00128 <0.00128 ND D D2-3-3.5 3 - 3.5 22-Nov-02 <0.00137 <0.00137 <0.00137 <0.00137 <0.00137 ND E E1-3.5-4 3.5 - 4 22-Nov-02 <0.00127 <0.00127 <0.00127 <0.00127 <0.00127 ND F F2-2-2.5 2 - 2.5 22-Nov-02 <0.00151 <0.00151 <0.00151 <0.00151 <0.00151 ND G1-2.5-3 2.5 - 3 22-Nov-02 <0.00129 <0.00129 <0.00129 <0.00129 <0.00129 ND G G-1-12.5-13 12.5 - 13 22-Nov-02 <0.00152 <0.00152 <0.00152 <0.00152 <0.00152 ND B-1-4-4.5 4 - 4.5 1-Oct-02 0.00388 <0.00142 0.00337 0.0152 <0.00142 ND B-1-10.5-11 10.5 - 11 1-Oct-02 <0.00169 <0.00169 <0.00169 0.0218 0.0306 ND H B-2-3.5-4 3.5 - 4 1-Oct-02 <0.0015 0.0028 0.0113 0.0113 <0.0015 ND B-2-10.5-11 10.5 - 11 1-Oct-02 <0.00133 <0.00133 0.00224 0.00224 0.0116 ND CHHSL for Residential Soil na na na na na na EPA-SL for Residential Soil 1.1 0.55 5,000 2.8 0.005 na ESL Direct Exposure for Residential Scenario (Table K-1) (c) 0.12 0.37 320 1.9 na na ESL Direct Exposure for Construction/Trench Worker (Table K-3) ( 12 30 650 170 na na ESL Leaching Concerns, Drinking Water Resource (Table G) 0.044 0.7 2.9 0.46 na na ESL Leaching Concerns, Non-Drinking Water Resource (Table G) 2 17 9 33 na na ESL Residential Gross Contamination Ceiling Level (Table H-2) 500 230 500 500 na na

Abbreviations: <0.50 = compound not detected at or above indicated laboratory reporting limit CHHSL = California EPA - Use of California Human Health Screening Levels (CHHSLs) in Evaluation of Contaminated Sites - Residential Land Use (January 2005, March 2009, May 2009) EPA-SL = U.S. EPA - Regional Screening Table - Residential Soil (December 2009) ESL = RWQCB, San Francisco Bay Region - Environmental Screening Levels (May 2008) ft bgs = feet below ground surface mg/kg = milligrams per kilogram na = not applicable or not available ND = not detected above laboratory reporting limits VOC = volatile organic compound

Notes: (a) Soil samples were analyzed by K-Prime, Inc. Consulting Analytical Chemists of Santa Rosa, California. (b) Concentrations that equal or exceed EPA-SLs or ESLs are shown in bold. (c) Direct exposure values for non-carcinogens are based on a hazard quotient equal to 1.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 Table 2-6 Summary of Groundwater Analytical Results for Metals Horton Landing Park Emeryville, California

Metals by EPA 200.8 (ug/L) (a)(b)

Sample was Sample Grid Groundwater field Depth Sample Area Sample ID filtered? (ft bgs)(c) Collection Date Antimony Arsenic Barium Beryllium Cadmium Total Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc E9-GGW1 Yes 11.5 5-May-09 <1 1.57 115 <1 <1 <1 <1 <1 <1 <0.2 2.11 2.29 1.01 <1 <1 <1 4.22 E J1-GGW1 Yes 11.5 5-May-09 <1 1.62 120 <1 <1 <1 <1 1.88 <1 <0.2 2.24 2.45 1.01 <1 <1 <1 3.84 E10-GGW1 Yes 16.5 5-May-09 <1 <1 110 <1 <1 <1 1.13 2.29 <1 <0.2 3.04 7.82 <1 <1 <1 <1 5.41 F F4-GGW1 Yes 11.5 5-May-09 <1 <1 128 <1 <1 2.98 1.94 10.3 <1 <0.2 4.93 9.83 1.41 <1 <1 2.86 11.6 G G1-0-19 No 19 22-Nov-02 <1 3.15 136 <1 <1 6.69 4.64 1.33 <1 <0.2 7.77 14.6 3.94 <1 <1 4.48 14.3 B-1-GW No 19 1-Oct-02 <1 <1 170 <1 <1 2.76 4.65 9.47 <1 <0.2 11.1 19.4 <1 <1 <1 1.30 9.38 B-1-GW Yes 19 1-Oct-02 <1 <1 178 <1 <1 2.68 4.67 1.41 <1 <0.2 7.38 15 1.77 <1 <1 1.23 8.93 H B-2-GW No 16 1-Oct-02 <1 <1 143 <1 2.51 <1 28 23.9 <1 <0.2 5.3 144 1.35 <1 <1 <1 9.44 B-2-GW Yes 16 1-Oct-02 <1 <1 147 <1 2.6 1.68 21.6 19.6 <1 <0.2 3.1 112 1.83 <1 <1 <1 9.37 Cal-MCL 6 10 1,000 4 5 50 na 1,30015 2 na 10050 na 2na na ESL, Freshwater Aquatic Habitat Goal (Table F-4a) 30 150 1,000 2.7 0.25 180 3 9 2.5 0.025 240 52 5 0.19 4 19 81 ESL, Drinking Water (Table F-3) 6 50 1,000 4 5 50 140 1,300 15 2 35 100 50 35 2 15 5,000 ESL, Drinking Groundwater Ceiling Level (Table I-1) 50,000 50,000 50,000 50,000 50,000 50,000 50,000 1,000 50,000 50,000 50,000 50,000 50,000 100 50,000 50,000 5,000 ESL, Non-Drinking Groundwater Ceiling Level (Table I-2) 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 50,000 ESL, Surface Water Ceiling Level (Table I-3) 50,000 50,000 50,000 50,000 50,000 50,000 50,000 1,000 50,000 50,000 50,000 50,000 50,000 100 50,000 50,000 5,000

Abbreviations: <0.50 = compound not detected at or above indicated laboratory reporting limit Cal-MCL = California Department of Public Health - Maximum Contaminant Levels (October 2008) ESL = RWQCB, San Francisco Bay Region - Environmental Screening Levels (May 2008) ft bgs = feet below ground surface J = estimated value na = not applicable or not available ug/L = micrograms per liter

Notes: (a) Grab groundwater samples were analyzed by K-Prime, Inc. Consulting Analytical Chemists of Santa Rosa, California. (b) Concentrations which equal or exceed Cal-MCLs or ESLs are shown in bold. (c) Sample depth reflects the base of the borehole at the time of groundwater sample collection.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 Table 2-7 Summary of Groundwater Analytical Results for TPH and VOCs Horton Landing Park Emeryville, California

VOCs by EPA 8260 (ug/L) (a)(b) TPH by 8015M (ug/L) (a)(b)

Sample Grid Groundwater Depth Sample Collection Area Sample ID (ft bgs)(c) Date 1,2-Dichloroethane cis-1,2-Dichloroethene trans-1,2- dichloroethene 1,2-Dichloropropane Tertiary Butyl Alcohol Toluene Trichloroethene 1,2,3-Trichloropropane Vinyl Chloride Xylene (M + P) Other VOCs Gasoline as TPH TPH as Diesel Motor Oil TPH as E9-GGW1 11.5 5-May-09 <0.5 <0.5 <0.5 <0.5 <10 <0.5 2.57 <0.5 <0.5 <0.5 ND <50 <50 <50 E J1-GGW1 11.5 5-May-09 <0.5 <0.5 <0.5 <0.5 <10 <0.5 2.57 <0.5 <0.5 <0.5 ND <50 <50 <50 E10-GGW1 16.5 5-May-09 <0.5 0.99 <0.5 <0.5 <10 <0.5 5.19 <0.5 <0.5 <0.5 ND <50 <50 <50 F F4-GGW1 11.5 5-May-09 <0.5 <0.5 <0.5 <0.5 <10 <0.5 2.77 <0.5 <0.5 <0.5 ND <50 195 <50 G G1-0-19 19 22-Nov-02 <0.5 2.97 1.17 <0.5 -- 0.93 1.36 <0.5 <0.5 0.53 ND <50 <50 -- B-1-GW 19 1-Oct-02 60.7 60.9 <50 1,190 1,750 <50 3,610 1,890 26.6 <50 ND 2,090 206 -- H B-2-GW 16 1-Oct-02 <5 32 <5 42.5 <100 <5 403 649 <5 <5 ND 308 98.5 -- Cal-MCL 0.5 6 10 5 na 150 5 na 0.5 1,750 na na na na ESL, Vapor Intrusion Concerns - Residential (Table E-1) 200 6,200 6,700 280 na 380,000530 na 4 160,000 na na na na ESL, Freshwater Aquatic Habitat Goal (Table F-4a) 10,000 590 590 2,900 18,000 130 360 na 780 100 na 210 210 210 ESL, Drinking Water (Table F-3) 0.5 6 10 5 12 150 5 na 0.5 1,800 na 210 210 210 ESL, Drinking Groundwater Ceiling Level (Table I-1) 7,000 50,000 260 10 50,000 40 310 na 3,400 20 na 100 100 100 ESL, Non-Drinking Groundwater Ceiling Level (Table I-2) 50,000 50,000 2,600 100 50,000 400 50,000 na 34,000 5,300 na 5,000 2,500 2,500 ESL, Surface Water Ceiling Level (Table I-3) 7,000 50,000 260 10 50,000 40 310 na 3,400 20 na 100 100 100

Abbreviations: "--" = not analyzed <0.50 = compound not detected at or above indicated laboratory reporting limit Cal-MCL = California Department of Public Health - Maximum Contaminant Levels (October 2008) ESL = RWQCB, San Francisco Bay Region - Environmental Screening Levels (May 2008) ft bgs = feet below ground surface na = not applicable or not available ND = not detected above laboratory reporting limits TPH = total petroleum hydrocarbons VOC = volatile organic compound ug/L = micrograms per liter Notes: (a) Grab groundwater samples were analyzed by K-Prime, Inc. Consulting Analytical Chemists of Santa Rosa, California. (b) Concentrations which equal or exceed Cal-MCLs or ESLs are shown in bold. (c) Sample depth reflects the base of the borehole at the time of groundwater sample collection. (d) The ESL for middle distillates was used for TPH as diesel.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 Table 2-8 Summary of WET and TCLP Analytical Results for Metals Horton Landing Park Emeryville, California

WET (mg/L) TCLP (mg/L)

Grid Soil Sample Waste Disposal Area Sample ID Collection Date

Arsenic Barium Total Chromium Copper Lead Arsenic Lead Classification A A-Comp1 6-May-09 ------4.52 -- 0.381 Non-Hazardous Waste B-Comp1 6-May-09 ------2.92 -- -- Non-Hazardous Waste B B-Comp2 6-May-09 4.23 ------4.95 0.07 0.057 Non-Hazardous Waste C-Comp1 6-May-09 5.26 ------3.72 -- -- Non-RCRA California Hazardous Waste C J-Comp1 6-May-09 7.05 ------4.3 -- -- Non-RCRA California Hazardous Waste D-Comp1 5-May-09 12.7 -- 1.65 -- 8.29 0.042 0.07 Non-RCRA California Hazardous Waste D D-Comp2 5-May-09 8.08 ------6.56 0.019 -- Non-RCRA California Hazardous Waste E-Comp1 5-May-09 2.91 -- 1.02 -- 35.8 -- 1.46 Non-RCRA California Hazardous Waste E-Comp2 5-May-09 4.32 -- 1.08 -- 7.84 0.007 0.03 Non-RCRA California Hazardous Waste E J-Comp2 5-May-09 ------7.33 -- 0.371 Non-RCRA California Hazardous Waste E-Comp3 4-May-09 4.93 ------12.3 -- 0.111 Non-RCRA California Hazardous Waste F-Comp1 4-May-09 ------8.04 -- 0.008 Non-RCRA California Hazardous Waste F F-Comp2 4-May-09 4.54 10.7 -- 28.6 12.6 -- 0.331 Non-RCRA California Hazardous Waste STLC 5 100 5 25 5 na na TCLP na na na na na 5 5

Abbreviations: "--" = not analyzed mg/L = miligrams per liter na = not applicable or not available STLC = Soluble Threshold Limit Concentration TCLP = Toxicity Characteristic Leaching Procedure TTLC = Total Threshold Limit Concentration WET = Waste Extraction Test

Notes: (a) Soil samples were analyzed by K-Prime, Inc. Consulting Analytical Chemists of Santa Rosa, California. (b) Concentrations that exceed the STLC or TCLP are shown in bold.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 Table 3-1 List of Potential ARARs and TBCs Horton Landing Park Emeryville, California

Requirement Description ARAR or TBC POTENTIAL CHEMICAL-SPECIFIC ARARs AND TBCs Resource Conservation and Recovery These regulations define RCRA hazardous waste if “listed” or “characteristically” hazardous. TCLP criteria Act ("RCRA") Identification and classify RCRA hazardous wastes for on-site or off-site disposal of excavated Site soil and extracted ARAR Listing of Hazardous Waste (40 CFR groundwater. Part 261)

RCRA hazardous wastes are potentially subject to land disposal restrictions. Land disposal restrictions can set RCRA Land Disposal Restrictions (40 performance requirements on treatment of the wastes for identified chemical constituents before land disposal. ARAR CFR Part 268) If chemical-specific universal treatment standards are exceeded, material must be treated prior to land disposal.

Total Threshold Limit Concentrations Title 22 of CCR lists TTLC and STLC values for classification of "hazardous" and "extremely hazardous" wastes. (“TTLCs”) and Soluble Threshold TTLC and STLC criteria for classifying California hazardous wastes are ARARs for on-site or off-site disposal of ARAR Limit Concentrations (“STLCs”) (22 soil excavated from the Site. CCR Section 66261.24) Toxic Substances Control Act (40 May be applicable for disposal of PCBs and asbestos, if present. ARAR CFR Part 761 & 763)

Chemical-specific drinking water standards are promulgated under the federal Safe Drinking Water Act as Maximum Contaminant Levels (“MCLs”). California has also promulgated drinking water standards, “California Federal Drinking Water Standards (40 MCLs”. Shallow groundwater in the vicinity of the Site is not currently used for potable water supply and is not CFR Part 141) and California likely to be used as a drinking water source in the future. The neighboring South Bayfront site to the west of the ARAR Drinking Water Standards (22 CCR Site has recorded covenants, conditions, and restrictions ("CC&Rs") that states that shallow groundwater cannot Section 64431, 64444, & 64449) be used as a drinking water source in the future. The identified current beneficial use of shallow groundwater at the Site is freshwater replenishment of surface water, Temescal Creek, that flows to San Francisco Bay and not for potable use.

California State Water Resources Control Board - 1) Sources of Drinking Water Resolution 88-63, 2) These promulgated State policies address water quality objectives for the State of California. ARAR Nondegradation Policy Resolution 68- 16, and 3) Containment Zone Policy Resolution 92-49 Safe Drinking Water and Toxic Proposition 65 prohibits the discharge, into a source of drinking water, of chemicals listed in 22 CCR Section Enforcement Act of 1986 12000 et seq. The statute also requires that a reasonable warning be given to individuals who may be exposed to ARAR (“Proposition 65”) listed substances at levels posing an unacceptable risk.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 4 March 2010 Table 3-1 List of Potential ARARs and TBCs Horton Landing Park Emeryville, California

Requirement Description ARAR or TBC POTENTIAL CHEMICAL-SPECIFIC ARARs AND TBCs San Francisco Bay Basin Water The Basin Plan outlines surface water quality objectives for selected toxic pollutants and quantifies Quality Control Plan ("Basin Plan"), ARAR concentrations of chemical constituents in amounts that adversely affect any designated beneficial use. dated December 2006

Establishment of Numeric Criteria for The Establishment of Numeric Criteria for Priority Toxic Pollutants for the State of California (40 CFR Priority Toxic Pollutants for the State Section 131.38) promulgates criteria for priority toxic pollutants in the State of California for inland surface ARAR of California (40 CFR Section 131.38) waters and enclosed bays and estuaries.

The CHHSLs were developed by the Office of Environmental Health Hazard Assessment ("OEHHA") on behalf California Human Health Screening of California EPA ("Cal-EPA") and are soil or soil gas concentrations that Cal-EPA considers to be below TBC Levels ("CHHSLs") thresholds of concern for risks to human health. EPA-SLs published by the USEPA combine current USEPA toxicity values with standardized exposure factors to USEPA Screening Levels (“EPA- estimate constituent concentrations in soil, groundwater, and ambient air that are protective of humans, including TBC SLs”) sensitive groups, over a lifetime on a screening-level basis.

San Francisco Regional Water Quality The ESLs were developed by the SFRWQCB to address environmental protection goals presented in the Basin Control Board ("SFRWQCB") Plan. These goals include protection of surface water, groundwater, soil, and soil vapor for human health, TBC Environmental Screening Levels drinking water and non-drinking water resources, aquatic and terrestrial biota, and nuisance conditions. The ("ESLs") ESLs provide screening levels for TPH, which is not addressed by the CHHSLs or EPA-SLs. POTENTIAL LOCATION-SPECIFIC ARARs AND TBCs National Archeological and Historic If significant scientific, pre-historic, or historic artifacts are found at the Site, provisions of this Act may require Preservation Act (16 USC Section ARAR implementation. 469, 36 CFR Part 65) SFRWQCB Groundwater Committee - This report presents a comprehensive evaluation of the beneficial uses of groundwater in the East Bay Plain East Bay Plain Groundwater Basin Groundwater Basin in which Emeryville, California is located. This report classifies Emeryville as Zone B, TBC Beneficial Use Evaluation Report where groundwater is unlikely to be used as a drinking water resource, and states that remedial strategies should dated 21 April 2001 focus on protecting potential aquatic receptors and potential future irrigation or industrial uses. RCRA Treatment Standards RCRA treatment standards for disposal of hazardous waste include total waste standards, waste extract standards, ARAR (40 CFR 268.40-49) and treatment technology standards. Implementation of Federal Clean Air Act requirements has been delegated, in part, to California. The Bay Area Air Quality Management District ("BAAQMD") is the local implementing agency. Where BAAQMD Federal Clean Air Act requirements have been incorporated into the State Implementation Plan ("SIP") and approved by USEPA, they ARAR (42 USC Section 7401-7515) are federally-enforceable. Where BAAQMD requirements have not been incorporated into the SIP and approved by USEPA, they are not federally-enforceable.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 2 of 4 March 2010 Table 3-1 List of Potential ARARs and TBCs Horton Landing Park Emeryville, California

Requirement Description ARAR or TBC POTENTIAL ACTION-SPECIFIC ARARs AND TBCs Applicable BAAQMD rules and regulations for remedial actions may include: a) Particulate Matter and Visible Emissions (Regulation 6) - limits the quantity of particulate matter in the atmosphere by controlling emission Bay Area Air Quality Management rates, concentration, visible emissions and opacity;b) Odorous Substances (Regulation 7) - establishes general District ("BAAQMD") Rules and ARAR limitations on odorous substances and specific emission limitations on certain odorous compounds;c) Hazardous Regulations Pollutants such as lead, vinyl chloride, and benzene (Regulation 11) - sets emission and/or performance standards for hazardous pollutants to limit the emissions of volatile organic. Hazardous Waste Manifest System, Applicable for RCRA and non-RCRA classified hazardous waste that may be transported off-site for treatment Recordkeeping, and Reporting(40 CFR and disposal. Standards applicable to generators and transporters of hazardous waste and owners and operators Parts 262, 263, & 264 and 22 CCR ARAR of hazardous waste treatment, storage, and disposal facilities that include manifest, transport, recordkeeping, and Sections 66262, 66263, & 66264, reporting requirements. CHSC Sections 25160-25166.5)

Federal regulations were established for the safe and secure transportation of hazardous materials in commerce Hazardous Materials Transportation under the federal hazardous materials transportation law (49 USC 5101 et seq.). These regulations are applicable Regulations (49 CFR Parts 107, 171- ARAR to those who cause hazardous materials to be transported and to those who manufacture or maintain a packaging 177) or a component of a packaging qualified for use in the transportation of a hazardous material. State regulations concerning the transportation of hazardous waste, including all inspection, licensing, and registration of trucks, trailers, semi trailers, vacuum tanks, cargo tanks, and containers used to transport all types California Hazardous Waste Haulers of hazardous wastes. No state or local agency, including, but not limited to, a chartered city or county, shall Act (CHSC Sections 25167.1- ARAR adopt or enforce any ordinance or regulation which is inconsistent with the rules and regulations adopted by the 25169.3) Department of Toxic Substances Control, the Department of the California Highway Patrol, or the State Fire Marshal pursuant to this article. Occupational Safety and Health Requirements for health and safety for on-site workers involved in hazardous waste operations and Administration (29 CFR Part emergencyresponse that are applicable to clean-up operations at sites recognized by governmental bodies as ARAR 1910.120) hazardous waste sites. Unless an exemption applies, CEQA requires completion of an Environmental Impact Report (“EIR”) or issuance of a Negative or Mitigated Negative Declaration before implementation of a project (such as redevelopment or California Environmental Quality Act remedial actions) that have the potential to have a physical impact on the environment. The purpose of an EIR is ("CEQA") (Public Resources Code, ARAR to provide State and local agencies and the general public with detailed information on the potentially significant Division 13, Section 21000 et seq.) environmental effects which a proposed project is likely to have and to list ways which the significant environmental effects may be minimized and indicate alternatives to the project.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 3 of 4 March 2010 Table 3-1 List of Potential ARARs and TBCs Horton Landing Park Emeryville, California

Requirement Description ARAR or TBC POTENTIAL ACTION-SPECIFIC ARARs AND TBCs Regulations of groundwater wells and exploratory holes, as required by California Water Code Sections 13800- Alameda County Public Works 13806, for Emeryville, California are administered and enforced by the Alameda County Public Works Agency ARAR Agency - Wells Standard Program ("ACPWA") through the Well Standards Program. Applicable for well permits, installation, and destruction. Municipal Code of the City of Requires that excavations and fills and construction in and around watercourses and public rights-of-way be Emeryville (Title 7, Chp 5: Public performed in accordance with good engineering practices, thereby reducing to a minimum the hazards and TBC Works - Grading) damages to public and private property from such work. Ensures the future health, safety, and general welfare of the public by: a) eliminating non-stormwater discharges Municipal Code of the City of to the municipal separate storm sewer, b) controlling the discharge to municipal separate storm sewers from Emeryville (Title 6, Chp 13: Sanitation spills, dumping or disposal of materials other than stormwater, and c) reducing pollutants in stormwater TBC and Health - Stormwater Management discharges to the maximum extent practicable. Protects and enhances the water quality of watercourses, water and Discharge Control Program) bodies, and wetlands in a manner pursuant to and consistent with the Clean Water Act.

Abbreviations: ARARs = Applicable or Relevant and Appropriate Requirements BAAQMD = Bay Area Air Quality Management District CCR = California Code of Regulations CEQA = California Environmental Quality Act CFR = Code of Federal Regulations CHSC = California Health and Safety Code DTSC = California Department of Toxic Substances Control EPA-SLs = USEPA Screening Levels MCLs = Maximum Contaminant Levels NCP = National Oil and Hazardous Substances Pollution Contingency Plan PCBs = polychlorinated biphenyls RCRA = Resource Conservation and Recovery Act SFRWQCB = San Francisco Bay Regional Water Quality Control Board SIP = State Implementation Plan STLCs = Soluble Threshold Limit Concentrations TBCs = To Be Considered TCLP = Toxicity Characteristic Leaching Procedure TPH = Total Petroleum Hydrocarbons TTLCs = Total Threshold Limit Concentrations USC = United States Code USEPA = U.S. Environmental Protection Agency

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 4 of 4 March 2010 Table 3-2 Proposed Site-Specific Soil Remedial Goals Horton Landing Park Emeryville, California

Proposed Concentration Range SSRGs for Soil COPCs (mg/kg) (mg/kg) (a) Basis for Preliminary SSRG (b) Arsenic <2.5 to 190 17 Site-Specific Background Concentration (c) Lead <2.5 to 744 260 ESL Direct Exposure for Residential Scenario (Table K-1) Aroclor 1260 <0.1 to 0.752 0.22 ESL Direct Exposure for Residential Scenario (Table K-1) Dieldrin <0.01 to 0.589 0.034 ESL Direct Exposure for Residential Scenario (Table K-1) TPH as Diesel <10 to 1,380 540 ESL Direct Exposure for Residential Scenario (Table K-1) Oil and Grease 57.5 to 8,520 1,800 ESL Direct Exposure for Residential Scenario (Table K-1)

Abbreviations: <0.50 = compound not detected at or above indicated laboratory reporting limit COPCs = chemical of potential concern ESL = RWQCB, San Francisco Bay Region - Environmental Screening Levels (May 2008) mg/kg = milligrams per kilogram SSRG = site-specific remedial goal TPH = total petroleum hydrocarbons

Notes: (a) In general, SSRGs were selected for the Site based on unrestricted (i.e., residential) use. (b) Direct exposure ESLs for non-carcinogens are based on a hazard quotient equal to 1. (c) See text for details.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 Table 4-1 Analysis of Remedial Action Alternatives Horton Landing Park Emeryville, California

Remedial Action Alternative Alternative 1 Alternative 2 Alternative 3

Limited Excavation with Off-Site Disposal and Capping: Limited Excavation with Off-Site Disposal and Capping entails physical removal of the top 1 foot of COPC-impacted soils from the Site in areas that will not be covered by the pedestrian ramp, removal of potentially impacted soil at the proposed location of the No Action: Excavation and Off-Site Disposal: bridge’s footings, transporting those soils to either a permitted landfill or treatment facility The No Action Alternative does not include remedial action Excavation and Off-Site Disposal entails physical removal for disposal, recording of a deed restriction, and preparation of a SMP. An excavation for removal of COPCs above SSRGs from Site soil. The of COPC-impacted soils from the Site and transporting depth of 1 foot was selected to avoid removing the layer of shell hash that was NoAction alternative may require institutional controls Description (a) those soils to either a permitted landfill or treatment facility encountered in the vicinity of Temescal Creek at depths ranging from approximately 2 to (including zoning restrictions, deed restrictions, well for disposal. Prior to soil excavation at the Site, existing 5 feet bgs and also to limit direct contact with COPC-impacted soil of future park patrons. drillingprohibitions and easements, and covenants) to reduce paved surfaces, railroad spur remnants, and debris would Subsurface workers will be protected by appropriate worker health and safety protocols. the risk of exposures to Site COPCs if existing barriers are be removed. Alternative 3 also includes a cap system to limit direct contact with COPC-impacted soil. weakened or damaged. The cap will consist of one of the following cap materials: clean soil (including landscaped areas), above ground structures (like the pedestrian ramp), and concrete pavement to be constructed as part of redevelopment. Prior to soil excavation at the Site, existing paved surfaces, railroad spur remnants, and debris would be removed.

Effective in the short and long term for protection of Effective in the short term for protection of human health from direct exposure to soil and human health from direct exposure to soil. Potential on- effective in the long term as long as the integrity of the cap system is mantained, a deed Effectiveness Not Effective Site and off-Site impacts from dust, odor, and traffic would restriction is recorded, and protocols established in the SMP followed during subsurface be addressed by available mitigation measures and activities. Potential on-Site and off-Site impacts from dust, odor, and traffic would be engineering controls. addressed by available mitigation measures and engineering controls. Implementable. May require control measures to reduce potential noise, dust, and odor Implementable. May require control measures to reduce impacts to on-Site workers and local community. Additional effort would be required for Implementability Easily Implementable. potential noise, dust, and odor impacts to on-Site workers the installation and on-going monitoring of the cap system, recording of a deed restriction, and local community. and preparation and implementation of the SMP. Costs -- See Table 4-2 See Table 4-2

Will comply with location- and action-based ARARs and Compliance with Will comply with the applicable ARARs and TBCs to the Will comply with location- and action-based ARARs and TBCs to the extent practicable,

Remedial Action Alternatives TBCs to the extent practicable, but will not comply with ARARs and TBCs extent practicable. but will not comply with chemical-specific ARARs and TBCs.

Acceptance Criteria for Analysis of chemical-specific ARARs and TBCs.

Alternative not recommended due to higher costs of Recommended Alternative. Lack of effectiveness and non-compliance with acceptance cleanup and because excavation of soils would result in the Conclusion Implementation of Alternative requires on-going monitoring and maintenance criteria precludes selection. removal of shell hash present at the Site, which is a of cap system, recording of a deed restriction, and implentation of the SMP. potential archeological resource.

Abbreviations: ARARs = Applicable or Relevant and Appropriate Requirements SMP = Site Management Plan COPCs = chemicals of potential concern SSRG = Site-specific remedial goal RAO = Remedial Action Objective TBCs = To Be Considered

Notes: (a) A detailed description of Alternatives 1 to 3 is provided in Section 4 of the text.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 Table 4-2 Summary of Estimated Costs of Remedial Action Alternatives Horton Landing Park Emeryville, California

Remedial Action Alternative Alternative 1 Alternative 2 Alternative 3 (1) On-Site Shallow Soil: Limited Excavation with Capping (1) On-Site Shallow Soil: No Action (2) Deed Restriction (a) (1) On-Site Shallow Soil: Excavation Description (2) Institutional Controls (3) Implementation Site Management Plan (4) Monitoring and Maintenance of Cap

On-Site Soil (d) -- $2,100,000 to $4,300,000 $800,000 to $1,700,000 (b)(c) (2009 p Dollars)

Recurring Annual Cap Monitoring Costs -- -- $19,000 (2009 Dollars)

Present Worth of Annual Costs -- -- $450,000 (2009 Dollars)

Total Present Worth of Costs -- $2,100,000 to $4,300,000 $1,300,000 to $2,200,000 (2009 Dollars) (b)(c)

Abbreviations: -- = not applicable

Notes: (a) A detailed description of Alternatives 1 to 3 is provided in Section 4 of the text. (b) See Appendix A. Includes 30 percent contingency and a -30 to +50 percent accuracy range is applied to the estimated total capital costs per U.S. EPA guidelines (U.S. EPA, 2000). (c) Total costs are rounded.

SCP_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 Horton Landing Park Emeryville, CA

Notes: Erler & 1. All locations are approximate. Kalinowski, Inc. 2. Basemap source: The Thomas Guide, Bay Area Metro, 2007. Site Location Map

Horton Landing Park Emeryville, CA 0 1000 2000 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure 1-1 CMF Building Novartis Stanford Avenue Horton Street Easement Parcel

PDU Building Building H

Surface Parking Sherwin-Williams Facility

Parking Structure

City of Emeryville HORTON LANDING PARK Public Works Facility

Union Pacific Railroad

Legend: Notes:

Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Aerial photograph from Google Earth Erler & Open Space Easement to City of Emeryville Pro, 2009. Kalinowski, Inc. 2009 Aerial Photo and Neighboring Properties

Horton Landing Park Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure 1-2 G:\A90007.00\Mar10\Figure3-03-10 Photo.dwg2009 Aerial - 1-2 B-1 CMF Building Horton Street Area H

Stanford Avenue PDU Building

B-2 Building H

Storm Drain Channel Surface Parking Sherwin-Williams Facility

A3 G1 Area G G2 A1 Temescal Creek A4 Parking Structure Area A F5 F6 F2 F4 A5 F3 Area F E11 E13 F10 E9 F1 A2 E2 F9 A6 E14 E7 F7 F8 E5 Area E E3 E12 B3 C3 E1 E10 C1 E8 B1 C4 C5 D9 E6 B5 E4 City of Emeryville B4 Area C D3 D7 D2 C2 C6 D10 Public Works Facility B7 D5 D6 Area D Area B D4 D1 D8 B2 B9 B6 B10 B8

Union Pacific Railroad

Legend: Notes:

Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Topographic and Boundary Survey Grid Area Boundary Map, SANDIS, 21 December 2007. Erler & Open Space Easement to City of Emeryville Kalinowski, Inc. Trench Location (2009) Soil Boring Location (2009) Existing Sampling Locations Soil Boring and Grab Groundwater Location (2009) Soil Boring Location (2002) Horton Landing Park Soil Boring and Grab Groundwater Location (2002) Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure 2-1 G:\A90007.00\Mar10\FigureExisting 2-1 - Sampling Locations.dwg3-03-10

Lognormal

Lognormal

100 g/kg)g/kg)

Arsenic (m (m Arsenic Arsenic 10

0.1 1 5 10 20 30 40 50 60 70 80 90 95 99 99.9 Cumulative Percent 1 Erler & Kalinowski, Inc. Probability Plot of Horton Landing Park Arsenic Data Horton Landing Park Emeryville, California March 2010 EKI A90007.00 Figure 3-2 Lognormal Variable Arsenic Simulation 100 g/kg)g/kg)

10 Arsenic (m (m Arsenic Arsenic

1 0.01 1 5 20 50 80 95 99 99.99 Cumulative Percent

Erler & Kalinowski, Inc. Probability Plot of Horton Landing Park Arsenic Data and Simulation Horton Landing Park Emeryville, California March 2010 EKI A90007.00 Figure 3-3 Lognormal - 95% CI

Loc 1.491 Scale 0.5484 N484 A D 0.220 P-Value 0.834 10 g/kg)g/kg) Arsenic (m (m Arsenic Arsenic

1

1

0.1 1 5 10 20 30 40 50 60 70 80 90 95 99 99.9 Cumulative Percent

Erler & Kalinowski, Inc. Probability Plot of the Background Arsenic Simulation Population Horton Landing Park Emeryville, California March 2010 EKI A90007.00 Figure 3-4 Analytical Results (mg/kg) Sample Soil Depth

Sample ID (ft bgs) Arsenic Lead TPH as Diesel and Oil Grease Aroclor 1260 Dieldrin Analytical Results (mg/kg) B-1-4-4.5 4 - 4.5 -- -- <10 ------Analytical Results (mg/kg) Sample Sample B-1-1-7 1 - 7 3.44 7.41 ------Soil Depth Soil Depth B-1-10.5-11 10.5 - 11 5.22 5.92 <10 ------

Sample ID (ft bgs) Arsenic Lead as TPH Diesel Oil and Grease Aroclor 1260 Dieldrin B-2-3.5-4 3.5 - 4 -- -- <10 ------

Sample ID (ft bgs) Arsenic Lead TPH as Diesel and Oil Grease Aroclor 1260 Dieldrin B-1 E-0-2 0 - 2 60.5 517 1,380 8,520 0.506 -- B-2-1-7 1 - 7 3.44 34.6 ------A-0-2 0 -2 86.1 77.1 276 1,600 0.217CMF --Building E-COM P1 na 73.1 655 <50 ------B-2-10.5-11 10.5 - 11 3.21 4.78 <10 ------A-COM P1 na 41.4 134 55.1 -- -- <0.01 Horton Street E-COM P2 na 107 188 <50 -- -- <0.01 A3-NAT1 2.5 - 3 3.81 8.05 <10 ------J-COMP2 na 31.7 157 <50 -- -- <0.01 J3-NAT1 2.5 - 3 2.78 7.5 <10 ------Area H Stanford Avenue E-COM P3 na 51.3 309 65.4 ------PDU Building Analytical Results (mg/kg) <10 Sample A4-NAT1 2.5 - 3 11.8 12.1 ------E3-3-3.5 3 - 3.5 5.21 44.9 109 ------Analytical Results (mg/kg) Soil Depth A6-NAT1 2.5 - 3 6.55 5.7 <10 ------E3-NAT1 3.5 - 4 3.92 6.94 <10 ------B-2

Sample Sample ID (ft bgs) Arsenic Lead TPH as Diesel and Oil Grease Aroclor 1260 Dieldrin Soil Depth J5-NAT1 3.5 - 4 7.15 14.3Building<10 --H -- -- G-0-2 0 - 2 15.9 146 25.2 360 <0.1 -- G1-12-12.5 12 - 12.5 3.46 4.91 <10 57.5 <0.1 -- Sample ID (ft bgs) Arsenic Lead TPH as Diesel andOil Grease Aroclor 1260 Dieldrin E5-NAT1 4 - 4.5 11.1 11.6 <10 ------

C-0-2 0 - 2 90.4 147 372 1,260 0.752 -- E9-NAT1 3.5 - 4 5.19 56.7 <10 ------Storm Drain Channel Sherwin-Williams C-COM P1 na 68.4 82.1 <50 ------SurfaceE10-NAT1 Parking 3 - 3.5 10.2 38.3 <10 ------Facility J-COMP1 na 63.5 74.8 <50 ------E12-NAT1 3 - 3.5 4.21 26.8 <10 ------C4-NAT1 3.5 - 4 33.7 5.25 <10 ------E13-NAT1 2.5 - 3 9.76 <2.5 <10 ------A3 C4-NAT2 4 - 4.5 59.1 ------G1 Area G G2 A1 C6-NAT1 4 - 4.5 23.7 5.65 <10 ------C6-NAT2 4.5 - 5 ------Temescal Creek A4 Parking36.5 Structure -- Area A F5 F6 F2 F4 A5 F3 Area F E11 E13 F10 E9 F1 A2 E2 F9 A6 E14 E7 F7 F8 E5 Area E E3 E12 B3 C3 E1 E10 C1 E8 B1 C4 C5 D9 E6 B5 E4 City of Emeryville B4 Area C D3 D7 D2 C2 C6 D10 Public Works FacilityAnalytical Results (mg/kg) B7 D5 D6 Area D Analytical Results (mg/kg) Sample Area B D4 D1 D8 Analytical Res ults (mg/kg) Sample Soil Depth Sample Soil Depth B2 B9 Soil Depth

Sample ID (ft bgs) Arsenic Lead TPH as Diesel and Oil Grease Aroclor 1260 Dieldrin B6 B10 Sample ID (ft bgs) Arsenic Lead TPH as Diesel Oil and Grease Aroclor 1260 Dieldrin

B8 S ample ID (ft bgs) Arsenic Lead TPH as Diesel Oil and Grease Aroclor 1260 Dieldrin B-0-2 0 - 2 43.1 112 480 3,640 0.127 -- F-0-2 0 - 2 109 744 379 2,700 0.265 -- D-0-2 0 - 2 99.1 307 713 3,140 0.624 -- B-COM P1 na 27.6 77.9 72.8 ------F-COMP1 na 34.8 217 <50 ------D-COMP1Union na Pacific190 146Railroad<50 -- -- 0.013 B-COM P2 na 117 146 <50 -- -- <0.01 F-COMP2 na 66.7 218 130 -- -- 0.589 D-COMP2 na 110 90.7 <50 ------<10 B4-NAT1 2.5 - 3 3.51 5.8 ------F4-FILL1 0 - 2.5 -- -- <10 ------D4-NAT1 3.5 - 4 3.69 4.58 <10 ------J4-NAT1 2.5 - 3 2.72 4.34 <10 ------F4-NAT1 3 - 3.5 <2.5 <10 -- -- D5-NAT1-EAST 2.5 - 3 2.97 12.5 <10 ------26 -- B5-NAT1 2.5 - 3 2.96 4.74 <10 ------F4-NAT2 3.5 - 4 13.8 ------D5-NAT1-WEST 3.5 - 4 86 23.9 <10 ------B8-NAT1 4 - 4.5 2.67 3.99 <10 ------F6-NAT1 6.5 - 7 7.75 48.5 <10 -- -- D5-NAT2-WEST 4 - 4.5 133 ------B9-NAT1 3 - 3.5 3.71 9.1 <10 ------<10 D8-NAT1 3.5 - 4 4.6 19.3 <10 ------F7-NAT1 3.5 - 4 33.3 6.47 ------D9-NAT1 3.5 - 4 45.6 74.4 <10 ------F7-NAT2 4 - 4.5 19.3 ------D9-NAT2 4 - 4.5 4.23 ------F9-NAT1 6.25 - 6.75 <2.5 4.96 <10 ------Legend: Notes: Abbreviations:

Approximate Property Boundary 1. All locations are approximate. -- not analyzed Novartis Easement Parcel 2. Basemap source: Topographic and Boundary Survey <10 not detected at or above indicated laboratory reporting limit Grid Area Boundary Map, SANDIS, 21 December 2007. Erler & COPC chemical of potential concern Open Space Easement to City of Emeryville 3. Detected concentrations of COPCs above the proposed Kalinowski, Inc. Site-Specific Remedial Goals are shown in bold. ft bgs feet below ground surface Trench Location (2009) mg/kg milligrams per kilogram Soil Boring Location (2009) Identified Primary COPCs in Soil na not applicable or not available Soil Boring and Grab Groundwater Location (2009) Soil Boring Location (2002) Horton Landing Park Soil Boring and Grab Groundwater Location (2002) Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure 3-5 G:\A90007.00\Mar10\Figure3-03-10 Soil.dwg Identifiedin COPCs- Primary 3-5 B-1 CMF Building Horton Street Area H

PDU Building

B-2

Storm Drain Channel Surface Parking 7.6

A3 G1 Area G G2 A1 7.0 3.7 Temescal Creek A4 Parking Structure 7.0 Proposed Excavation of 1 foot of Soil Area A F5 TW F2 F6 F4 7.9 A5 E13 F3 Area F F10 Embankment Fill Area E11 6.8 4.5 7.2 7.0 F1 A2 E9 E2 F9 A6 E7 E12 E14 E5 Area E F7 F8 E10 B3 C3 C1 E1 E3 E8 7.2 B1 C4 C5 E4 E6 B5 D9 D10 City of Emeryville B4 Area C D3 D7 D2 C2 C6 D4 7.3 Public Works Facility B7 D5 D8 Area D D1 7.8 Area B D6 B2 B9 B6 B10 B8

Union Pacific Railroad

Legend:

Approximate Property Boundary Abbreviations: Notes: Novartis Easement Parcel msl = Mean sea level 1. All locations are approximate. Open Space Easement to City of Emeryville 2. Basemap source: Topographic and Boundary Survey Erler & Grid Area Boundary Map, SANDIS, 21 December 2007. Trench Location (EKI, 2009) Kalinowski, Inc. Soil Boring (EKI, 2009) Soil Boring (EKI, 2002) Proposed Lateral and Vertical Extents of Excavations Proposed Surface Elevation Contour (feet msl)

Proposed Excavation of 1 foot of Soil Horton Landing Park Emeryville, CA Embankment Fill Area 0 75 150 March 2010 Proposed Excavation for Pedestrian Bridge Footings EKI A90007.00 (Approximate Scale in Feet) 7.9 Proposed Bottom Excavation Elevation (feet msl) Figure 5-1 G:\A90007.00\Mar10\Figure 5-1 - Lateral and Vertical ExtentsandVerticalG:\A90007.00\Mar10\Figure Excavations.dwg Lateral3-03-10 - 5-1

APPENDIX A SUPPORTING INFORMATION FOR ESTIMATED COSTS OF POTENTIAL REMEDIAL ACTION ALTERNATIVES

TABLE A-1a Summary of Soil Excavation Volumes and Waste Disposal Classification for Alternative 2 Excavation and Off-Site Disposal Horton Landing Park Emeryville, California

Approximate Overall Area of Excavation Approximate Cell Excavation Depth (a) Volume/Weight Grid Area (sq ft) (ft bgs) (bcy) (tons) Basis for Excavation Waste Disposal Classification (b) A 5,427 2.5 500 900 Arsenic > SSRGs Non-Hazardous Waste

B 7,125 3.0 790 1,420 Arsenic and Oil and Grease > SSRGs Non-Hazardous Waste

C 4,672 5.5 950 1,710 Arsenic and Aroclor 1260 > SSRGs Non-RCRA California Hazardous Waste Arsenic, Lead, TPH-d, Oil and Grease, and D 8,828 5.0 1,630 2,930 Non-RCRA California Hazardous Waste Aroclor 1260 > SSRGs Arsenic, Lead, TPH-d, Oil and Grease, and E 11,536 3.0 1,280 2,300 Non-RCRA California Hazardous Waste Aroclor 1260 > SSRGs Arsenic, Lead, Oil and Grease, Dieldrin, and F 8,863 5.0 1,640 2,950 Non-RCRA California Hazardous Waste Aroclor 1260 > SSRGs G 10,735 0 0 0 No excavation - COPCs < SSRGs --

H 8,705 0 00 No excavation - COPCs < SSRGs --

TOTAL (c) 65,900 6,800 12,200 Subtotals (Non-Hazardous Material): 1,300 2,300 Subtotals (Non-RCRA California Hazardous Wast 5,500 9,900 Subtotals (RCRA Hazardous Waste): 00

Abbreviations SSRGs = proposed site-specific remedial goals -- = not applicable STLC = Soluble Threshold Limit Concentration bcy = bank (in-place) cubic yards TCLP = Toxicity Characteristic Leaching Procedure bgs = below ground surface TTLC = Total Threshold Limit Concentration COPCs = chemicals of potential concern TPH-d = total petroleum hydrocarbons as diesel sq ft = square feet

Notes (a) Excavation depths are based on the depth of samples where COPCs exceeded SSRGs. (b) See Table 2-8. (c) Totals and subtotals are rounded.

Assumptions (1) Assume 1.8 tons per bcy.

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 TABLE A-1b Summary of Soil Excavation Volumes and Waste Disposal Classification for Alternative 3 Limited Excavation with Off-Site Disposal and Capping Horton Landing Park Emeryville, California

Approximate Overall Area of Excavation Approximate Cell (a) Excavation Depth Volume/Weight Waste Grid Area (sq ft) (ft bgs) (bcy) (tons) Basis for Excavation Disposal Classification (b) A 5,427 1 200360 Arsenic > SSRGs Non-Hazardous Waste

B 7,125 1 260 470 Arsenic and Oil and Grease > SSRGs Non-Hazardous Waste

C 4,672 1 170 310 Arsenic and Aroclor 1260 > SSRGs Non-RCRA California Hazardous Waste Arsenic, Lead, TPH-d, Oil and Grease, and Aroclor D 3,005 1 110 200 Non-RCRA California Hazardous Waste 1260 > SSRGs Arsenic, Lead, TPH-d, Oil and Grease, and Aroclor E 7,200 1 270 490 Non-RCRA California Hazardous Waste 1260 > SSRGs Arsenic, Lead, Oil and Grease, Dieldrin, and F 8,863 1 330 590 Non-RCRA California Hazardous Waste Aroclor 1260 > SSRGs G0000No excavation - COPCs < SSRGs --

H000 0 No excavation - COPCs < SSRGs --

Bridge Footings 3,000 3.7 to 7.5 500 900 -- Non-RCRA California Hazardous Waste

TOTAL (c) 36,300 1,800 3,300 Subtotals (Non-Hazardous Material): 500 800 Subtotals (Non-RCRA California Hazardous Waste 1,400 2,500 Subtotals (RCRA Hazardous Waste): 00

Abbreviations -- = not applicable SSRGs = proposed site-specific remedial goals bcy = bank (in-place) cubic yards STLC = Soluble Threshold Limit Concentration bgs = below ground surface TCLP = Toxicity Characteristic Leaching Procedure COPCs = chemicals of potential concern TTLC = Total Threshold Limit Concentration sq ft = square feet TPH-d = total petroleum hydrocarbons as diesel

Notes (a) An excavation depth of 1 foot was selected for grid areas with COPCs that exceeded SSRGs. The actual depth of excavation may vary. (b) See Table 2-8. (c) Totals and subtotals are rounded.

Assumptions (1) Assume 1.8 tons per bcy.

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 1 March 2010 TABLE A-2a Preliminary Cost Estimate for Alternative 2 - Excavation and Off-Site Disposal Horton Landing Park Emeryville, California

Estimated Costs (a,b,c) Item (see notes page for additional assumptions) Unit Quantity Unit Cost Line Totals Subtotals CAPITAL COSTS REGULATORY NEGOTIATIONS Prepare Site Cleanup Plan ls 1 $50,000 $50,000 Revision of Documents ls 1 $15,000 $15,000 Meeting with the Agencies and Public Meeting ls 1 $10,000 $10,000

Subtotal: Regulatory Negotiations $75,000

SOIL EXCAVATION AND DISPOSAL Contractor Costs Mobilization / Demobilization ls 1 $30,000 $30,000 Surveying Pre-Excavation Surveying - delineate excavation cells ls 1 $5,000 $5,000 Post-Excavation Surveying - survey completed excavation ls 1 $7,500 $7,500 Erect and maintain perimeter temporary fence ft 2,800 $35 $97,400

Excavate and load fill into end dump trucks bcy 6,800 $7.10 $48,300 Soil transportation and disposal Non-hazardous (Class II) ton 2,300 $60 $138,000 Non-RCRA hazardous waste ton 9,900 $95 $940,500

Import, place, and compact structural fill ton 12,200 $38 $464,000 Subtotal: Soil Excavation and Disposal (Contractor costs including disposal) $1,730,000 Average contractor cost, per cubic yard $254/yd3

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 4 March 2010 TABLE A-2a Preliminary Cost Estimate for Alternative 2 - Excavation and Off-Site Disposal Horton Landing Park Emeryville, California

Estimated Costs (a,b,c) Item (see notes page for additional assumptions) Unit Quantity Unit Cost Line Totals Subtotals ENGINEERING SERVICES Engineering Services During Remediation Design Phase Design / Contracting ls 1 $40,000 $40,000

Engineering Services During Remediation Pre-mobilization contractor management and planning ls 1 $10,000 $10,000 Provide senior engineering manager week 5 $3,600 $18,000 Provide resident engineer week 5 $9,720 $48,600 Provide engineer to coordinate disposal issues and data week 5 $7,860 $39,300 Provide office support week 5 $1,900 $9,500 Provide vehicles and equipment week 5 $1,500 $7,500 Perimeter air monitoring week 5 $10,000 $50,000 Analytical (confirmation samples) sample 100 $500 $50,000 Analytical (additional disposal samples) sample 5 $710 $3,550 Prepare excavation completion report ls 1 $50,000 $50,000 Subtotal: Engineering Services without Project Management $326,000 Engineering Project Management (10% of Engineering Subtotal) ls 1 $32,600 $32,600

Subtotal: Engineering Services $360,000

Not Included in Cost Estimate Concrete and surface debris demolition / removal (if necessary) Existing building demolition / removal / relocation (if necessary Underground utility relocation and restoration (if necessary Final grading (assumed part of redevelopment) Health & safety upgrade to Level B (if necessary) Subtotal Cost Range - Estimated for Soil Transportation and Disposal (d) $800,000 to $1,600,000 Subtotal Cost Range - Estimated or Remaining Capital Costs (d) $800,000 to $1,600,000 Legal and Administrative Cost Range (assumed to be 5% of subtotal) $40,000 to $80,000 Subtotal Cost Range - Including Legal and Administrative Costs $1,600,000 to $3,300,000 Contingency Range (assumed to be 30% of subtotal range) (e) $480,000 to $1,000,000 ESTIMATED TOTAL CAPITAL COST RANGE (d) $2,100,000 to $4,300,000

ESTIMATED TOTAL PRESENT WORTH COST RANGE (d) $2,100,000 to $4,300,000

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 2 of 4 March 2010 TABLE A-2a Preliminary Cost Estimate for Alternative 2 - Excavation and Off-Site Disposal Horton Landing Park Emeryville, California

Notes (a) See Table A-3 for derivation of unit costs for several line items. Line items listed above but not listed in Table A-3 are based on EKI's experience wit similar projects. (b) Actual remediation costs would be affected by determination of final cleanup levels, determination of the final scope of excavation, actual waste classification and quantities, selection of actual disposal facilities, actual material and contractor pricing, and current bidding environment (c) Subtotals are rounded. (d) A -30 to +50 percent accuracy range is applied to the estimated total capital costs per U.S. EPA guidelines (US EPA, 2000) (e) A 30% contingency on overall costs has been included. Actual costs may exceed this level of contingency depending on further evaluation regulatory agency determinations, field conditions encountered during construction, worksite restrictions, bidding environment at time of work contractor’s costs, actual volume and classification of soil, and other site conditions

Abbreviations BOE = Board of Equalization bcy = bank cubic yards cy = cubic yards ea = each ls = lump sum mo = month sq ft = square feet STLC = Soluble Threshold Limit Concentration TAT = turn around time TCLP = Toxicity Characteristic Leaching Procedure

Assumptions for Pre-Excavation Tasks 1) Assume that the following tasks, if needed, will be performed by others as separate cost items and are not included herein - Costs of land, easements and rights-of-way - Demolition and removal of concrete, asphalt, and surface debris - Archaeological investigations and impacts - Removal or relocation of existing underground utilities or other site improvement - Final grading or paving

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 3 of 4 March 2010 TABLE A-2a Preliminary Cost Estimate for Alternative 2 - Excavation and Off-Site Disposal Horton Landing Park Emeryville, California

Assumptions for Soil Excavation and Disposal 1) Assume design such that negotiations and coordination with Union Pacific Railroad are not required 2) Assume shoring not required and sidewall sloping is sufficient based on preliminary excavation depths 3) Assumes dewatering will not be required based on depth to water measurements. 4) Assume work is limited to regular working hours. 5) Assume Level C health and safety protection is sufficient to complete soil excavation and disposal activities 6) Assume excavated soil will be transported off-site for disposal at appropriately permitted land disposal facilities 7) Assume no BOE disposal taxes if City of Emeryville responsible for disposal 8) Assume no BOE generator fees if City of Emeryville responsible for disposal 9) Assume non-hazardous waste is disposed within Alameda County and out of county local taxes are not applicable 10) Assume that excavation will occur during the dry season. Assume that soils will not generate free water after placement in the truck 11) Assume clean fill will be imported to backfill the excavation to existing grade. No excavated soil is assumed to be reused as backfil 12) Assume soil excavation and disposal are sufficient remedial measures to satisfy state regulatory agencies

Assumptions for Engineering Services 1) Assume that waste classifications for disposed soil will be pre-approved by the landfills prior to excavation due to limited on-site space for stockpiling after soil is excavated 2) Assume excavation rate of 500 bcy per day. 3) Assume import, place, and compact fill at 1,000 bcy per day. 4) Confirmation sampling - assume every 2,500 sq ft for bottom samples and every 50 ft for sidewall samples with 10% retest rate. Assume 2 day TAT with 50% increase in unit cost. 5) Confirmation analysis - confirmation sample to be analyzed for Title 22 metals, TPH-d, TPH-mo, and PCBs 6) Disposal sampling - assume additional samples collected every ~1,500 bcy with 10% retest rate. Assume 2 day TAT with 50% increase in unit cost 7) Disposal analysis - disposal samples to be a) extracted per STLC and TCLP procedures and analyzed for Title 22 metals and b) analyzed for TPH-d

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 4 of 4 March 2010 TABLE A-2b Preliminary Cost Estimate for Alternative 3 - Limited Excavation with Off-Site Disposal and Capping Horton Landing Park Emeryville, California

Estimated Costs (a,b,c) Item (see notes page for additional assumptions) Unit Quantity Unit Cost Line Totals Subtotals CAPITAL COSTS REGULATORY NEGOTIATIONS Prepare Site Cleanup Plan ls 1 $50,000 $50,000 Revision of Documents ls 1 $15,000 $15,000 Meeting with the Agencies and Public Meeting ls 1 $10,000 $10,000 Prepare Site Management Plan and Record Deed Restriction ls 1 $30,000 $30,000

Subtotal: Regulatory Negotiations $105,000

CONTRACTOR COSTS Contractor Costs Mobilization / demobilization ls 1 $30,000 $30,000 Surveying Pre-Excavation Surveying - delineate excavation cells ls 1 $5,000 $5,000 Post-Excavation Surveying - survey completed excavation ls 1 $7,500 $7,500 Erect and maintain perimeter temporary fence ft 2,800 $35 $97,400

Excavate and load fill into end dump trucks bcy 1,400 $7.1 $9,900 Soil transportation and disposal Non-hazardous (Class II) ton $60 Non-RCRA hazardous waste ton 2,500 $95 $237,500

Install marker sy 4,033 $1.75 $7,100 Import, place, and compact structural fill ton 2,500 $38 $95,000 Import and place 6 inches of topsoil sf 36,300 $0.75 $27,000 Subtotal: Contractor costs $520,000 Average contractor cost, per cubic yard $371/yd3

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 5 March 2010 TABLE A-2b Preliminary Cost Estimate for Alternative 3 - Limited Excavation with Off-Site Disposal and Capping Horton Landing Park Emeryville, California

Estimated Costs (a,b,c) Item (see notes page for additional assumptions) Unit Quantity Unit Cost Line Totals Subtotals ENGINEERING SERVICES Engineering Services During Remediation Design Phase Design / Contracting ls 1 $40,000 $40,000

Engineering Services During Remediation Pre-mobilization contractor management and planning ls 1 $10,000 $10,000 Provide senior engineering manager week 2 $3,600 $7,200 Provide resident engineer week 2 $9,720 $19,440 Provide engineer to coordinate disposal issues and data week 2 $7,860 $15,720 Provide office support week 2 $1,900 $3,800 Provide vehicles and equipment week 2 $1,500 $3,000 Perimeter air monitoring week 2 $10,000 $20,000 Analytical (additional disposal samples) sample 2 $710 $1,420 Prepare excavation completion report ls 1 $50,000 $50,000 Subtotal: Engineering Services without Project Management $171,000 Engineering Project Management (10% of Engineering Subtotal) ls 1 $17,100 $17,100

Subtotal: Engineering Services $190,000

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 2 of 5 March 2010 TABLE A-2b Preliminary Cost Estimate for Alternative 3 - Limited Excavation with Off-Site Disposal and Capping Horton Landing Park Emeryville, California

Estimated Costs (a,b,c) Item (see notes page for additional assumptions) Unit Quantity Unit Cost Line Totals Subtotals Not Included in Cost Estimate Concrete and surface debris demolition / removal (if necessary) Existing building demolition / removal / relocation (if necessary Underground utility relocation and restoration (if necessary Final grading (assumed part of redevelopment) Health & safety upgrade to Level B (if necessary) Subtotal Cost Range - Estimated for Soil Transportation and Disposal (d) $200,000 to $400,000 Subtotal Cost Range - Estimated or Remaining Capital Costs (d) $400,000 to $900,000 Legal and Administrative Cost Range (assumed to be 5% of subtotal) $20,000 to $45,000 Subtotal Cost Range - Including Legal and Administrative Costs $600,000 to $1,300,000 Contingency Range (assumed to be 30% of subtotal range) (e) $180,000 to $400,000 ESTIMATED TOTAL CAPITAL COST RANGE (d) $800,000 to $1,700,000 ANNUAL COSTS COVER SYSTEM INSPECTION AND REPAIR Perform topographic survey to monitor settling every 5 year acre 1.2 $500 $600 Repair periodic breaches to cover ls 1 $5,000 $5,000 Prepare annual letter report of cover status ls 1 $1,000 $1,000 Conduct five year review of remedy performance ls 1 $3,000 $3,000

Annual Subtotal: Cover System Inspection and Repair (cost per year) $19,000 Present Worth of Annual Costs: Cover System Inspection and Repair (assumed 30-year duration) $450,000 ESTIMATED TOTAL PRESENT WORTH COST RANGE (d) $1,300,000 to $2,200,000

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 3 of 5 March 2010 TABLE A-2b Preliminary Cost Estimate for Alternative 3 - Limited Excavation with Off-Site Disposal and Capping Horton Landing Park Emeryville, California

Notes (a) See Table A-3 for derivation of unit costs for several line items. Line items listed above but not listed in Table A-3 are based on EKI's experience wit similar projects. (b) Actual remediation costs would be affected by determination of final cleanup levels, determination of the final scope of excavation, actual waste classification and quantities, selection of actual disposal facilities, actual material and contractor pricing, and current bidding environment (c) Subtotals are rounded. (d) A -30 to +50 percent accuracy range is applied to the estimated total capital costs per U.S. EPA guidelines (US EPA, 2000) (e) A 30% contingency on overall costs has been included. Actual costs may exceed this level of contingency depending on further evaluation regulatory agency determinations, field conditions encountered during construction, worksite restrictions, bidding environment at time of work contractor’s costs, actual volume and classification of soil, and other site conditions

Abbreviations BOE = Board of Equalization bcy = bank cubic yards cy = cubic yards ea = each ls = lump sum mo = month sq ft = square feet STLC = Soluble Threshold Limit Concentration TAT = turn around time TCLP = Toxicity Characteristic Leaching Procedure

Assumptions for Pre-Excavation Tasks 1) Assume that the following tasks, if needed, will be performed by others as separate cost items and are not included herein - Costs of land, easements and rights-of-way - Demolition and removal of concrete, asphalt, and surface debris - Archaeological investigations and impacts - Removal or relocation of existing underground utilities or other site improvement - Final grading or paving

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 4 of 5 March 2010 TABLE A-2b Preliminary Cost Estimate for Alternative 3 - Limited Excavation with Off-Site Disposal and Capping Horton Landing Park Emeryville, California

Assumptions for Soil Excavation and Disposal 1) Assume design such that negotiations and coordination with Union Pacific Railroad are not required 2) Assume shoring not required and sidewall sloping is sufficient based on preliminary excavation depths 3) Assumes dewatering will not be required based on depth to water measurements 4) Assume work is limited to regular working hours. 5) Assume Level C health and safety protection is sufficient to complete soil excavation and disposal activities 6) Assume excavated soil will be transported off-site for disposal at appropriately permitted land disposal facilities. 7) Assume no BOE disposal taxes if City of Emeryville responsible for disposal 8) Assume no BOE generator fees if City of Emeryville responsible for disposal 9) Assume non-hazardous waste is disposed within Alameda County and out of county local taxes are not applicable 10) Assume that excavation will occur during the dry season. Assume that soils will not generate free water after placement in the truck 11) Assume clean fill will be imported to backfill the excavation to existing grade. No excavated soil is assumed to be reused as backfil 12) Assume soil excavation and disposal are sufficient remedial measures to satisfy state regulatory agencies 13) Assume soil excavated from grid areas A and B will we placed in the embankment for the pedestrian ramp and, therefore, will not be disposed of off-site

Assumptions for Engineering Services 1) Assume that waste classifications for disposed soil will be pre-approved by the landfills prior to excavation due to limited on-site space for stockpiling after soil is excavated 2) Assume excavation rate of 500 bcy per day. 3) Assume import, place, and compact fill at 1,000 bcy per day. 4) Disposal sampling - assume additional samples collected every ~1,500 bcy with 10% retest rate. Assume 2 day TAT with 50% increase in unit cost 5) Disposal analysis - disposal samples to be a) extracted per STLC and TCLP procedures and analyzed for Title 22 metals and b) analyzed for TPH-d

Assumptions for Present Worth of Annual Costs 4) 30-year real interest rate = 1.6% based on OMB Circular No. A-94, Revised December 2009

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 5 of 5 March 2010 TABLE A-3 Derivation of Unit Costs Horton Landing Park Emeryville, California

Task Description Unit Unit Cost Comments CAPITAL COSTS General Site Preparation z Erect and maintain perimeter temporary fence ft $35 Temporary construction fencing for site security, Means, 0156-26.50-0550, p. 19 ($29/lf + 20%) Excavate and Dispose of Waste and Soil, Lay Geotextile Fabric, Place Backfill, and Compact Site (a) z Excavate waste (3 1/2 cy bucket) and place in end-dump truck cy $7.1 3 1/2 cy backhoe, 6-16 cy dump trailers, 1 mile round trip, Means G1030-120-3400, p. 410 ($5.92/cy + z Transport and dispose of non-hazardous material at Class II facility (a) ton $60 Based on local landfill cost estimate. z Transport and dispose of soil as non-RCRA California hazardous waste (a) ton $95 Based on local landfill cost estimate. z Import, place, and compact backfill material (a) ton $38 Assumes standard backfill material, local contractor quotation z Lay non-woven, 120 lb tensile strength geotextile fabric sy $1.75 Means, 3132-19.16-1550, p. 236 ($1.46/sy+ 20%). z Import and place 6 inches of topsoil sq ft $0.75 Means 3291-19.13-0800, p. 282 ($5.65/sy + 20%). Design and Construction Management Services z Construction observation Provide senior engineering manager week $3,600 Assumes 1 engineer $178/hr, 1/3 time throughout construction. Provide resident engineer week $9,720 Assumes 1 engineer $162/hr, 12 hr/day, 5 day/week throughout construction Provide engineer to coordinate disposal issues and data week $7,860 Assumes 1 engineer $131/hr, 12 hr/day, 5 day/week for a week during construction to coordinate disposal issues with waste management facilities and to track shipments of waste. Provide office support week $1,900 Assumes 1 junior engineer $95/hr, 4 hr/day, 5 day/week throughout construction Provide vehicles and equipment week $1,500 Vehicle, field supplies, photographs, OVM, and other H&S equipment for engineering personnel ANNUAL COSTS Laboratory Analysis z Sample analysis/preparation (b) Title 22 metals (EPA Method 6020) ea $170 Local lab quotation. Total petroleum hydrocarbons as gasoline ("TPH-g") (EPA Method 8015M) ea $110 Local lab quotation. Total petroleum hydrocarbons as diesel/motor oil ("TPH-d" / "TPH-mo"), with silica ge ea $70 Local lab quotation. cleanup (EPA Method 8015M) VOCs (EPA Method 8260) ea $165 Local lab quotation. PCBs (EPA Method 8082) ea $80 Local lab quotation. Extraction for STLC or TCLP ea $60 Local lab quotation. Inspect and Repair Cover System z Perform topographic survey to monitor settling every 5 years acre $500 $2,500/acre every 5 years or equivalent annual cost of $500/yr, EKI project experience. z Repair periodic breaches to cover ls $5,000 Assume $25,000 to repair significant breaches of cover system every 5 years, or equivalent annual cost of $5,000 per year, EKI project experience. z Prepare annual letter report of cover status ls $1,000 Assume $1,000 for site visit and annual letter report to document cover status, EKI project experience z Conduct five year review of remedy performance ls $3,000 Assume $15,000 to prepare report to regulatory agencies on effectiveness of remedial action every 5 years or equivalent annual cost of $3,000/yr, EKI project experience

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 1 of 2 March 2010 TABLE A-3 Derivation of Unit Costs Horton Landing Park Emeryville, California

Abbreviations cf = cubic feet cy = cubic yards ea = each ft = feet HDPE = High Density Polyethylene hr = hour lb = pound LLDPE = Linear Low Density Polyethylene ls = lump sum mo = month OVM = Organic Vapor Meter PVC = Polyvinyl Chloride RCRA = Resource Conservation and Recovery Act sq ft = square feet STLC = Soluble Threshold Limit Concentration sy = square yard TCLP = Toxicity Characteristic Leaching Procedure

Notes (a) Transportation costs are based on April-May 2008 conditions and could subject to fuel surcharges depending on the cost of diesel. Such fuel charges, if any, are unknown and are not included in this preliminary cost estimate. (b) Analyte list based on current understanding of subsurface conditions and chemicals of concern based on investigations conducted at the Site in 2002.

References: ECHOS, 2005. Environmental Cost Handling Options and Solutions, Environmental Remediation Cost Data – Assemblies, 2005 Edition Means, 2008. Heavy Construction Cost Data, 22nd Annual Addition. RSMeans, Kingston, Massachusetts.

AppendixA_Tables_March2010.xlsx Erler & Kalinowski, Inc. A90007.00 Page 2 of 2 March 2010

APPENDIX B TRAFFIC CONTROL AND WASTE TRANSPORTATION PLAN

APPENDIX B

TRAFFIC CONTROL AND WASTE TRANSPORTATION PLAN Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

1.0 INTRODUCTION...... B-1 1.1 Site Description and History...... B-1 1.2 Regulatory Status ...... B-2 1.3 Purpose and Objectives ...... B-2 1.4 Nature and Extent of Contamination ...... B-2

2.0 CHARACTERISTICS OF MATERIAL TO BE TRANSPORTED ...... B-2 2.1 Excavated Soil Characteristics ...... B-2 2.2 Liquid Waste Characteristics ...... B-3 2.3 Treated Wood Waste Characteristics ...... B-3 2.4 Other Waste Characteristics ...... B-3

3.0 DESTINATION OF MATERIAL ...... B-3 3.1 Soil Management ...... B-3 3.2 Liquid Waste Management ...... B-4 3.3 Treated Wood Waste Management ...... B-5 3.4 Other Waste Management ...... B-5

4.0 TRANSPORTATION MODE ...... B-5 4.1 Transportation of Soil and Treated Wood Waste ...... B-6 4.2 Transportation of Liquid Waste ...... B-6 4.3 Transportation of Other Waste ...... B-6

5.0 TRANSPORTATION ROUTES ...... B-6 5.1 Local Transportation Route ...... B-7 5.2 Route to Disposal Facilities ...... B-8

6.0 TRAFFIC CONTROL AND LOADING PROCEDURES ...... B-9 6.1 Traffic Control On- and Off-Site ...... B-9 6.2 Traffic Control During Loading ...... B-10

7.0 RECORD KEEPING ...... B-11

8.0 HEALTH AND SAFETY ...... B-12

9.0 CONTINGENCY PLAN ...... B-13 9.1 Steps Required For All Accidents ...... B-13

EKI A90007.00 B-i Appendix B

APPENDIX B

TRAFFIC CONTROL AND WASTE TRANSPORTATION PLAN Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

9.2 Steps for Spills of Diesel Fuel, Hydraulic Fluid, or Other Automotive Fluid(s) ...... B-14 9.3 Steps for Spills of Other Chemicals ...... B-14 9.4 Loading and Unloading ...... B-15

10.0 REFERENCES ...... B-15

FIGURES

B-1 Site Map B-2 Local Transportation Route B-3 Routes to Disposal Facilities

EKI A90007.00 B-ii Appendix B

1.0 INTRODUCTION

This Traffic Control and Waste Transportation Plan has been prepared by Erler & Kalinowski, Inc. (“EKI”) on behalf of our client, the City of Emeryville Redevelopment Agency (“Agency”), to describe the general traffic control and waste transportation procedures that will be employed by the Contractor during implementation of the Site Cleanup Plan (“SCP”) (EKI, 2010) for the Horton Landing Park property (the “Site”) in Emeryville, California (Figure B-1). The selected cleanup alternative in the SCP entails limited excavation and off-Site disposal of impacted shallow soils and transportation of those soils to a permitted off-Site disposal facility. The Agency will select a Contractor to implement the SCP.

This Traffic Control and Waste Transportation Plan is prepared in accordance with the California Environmental Protection Agency (“Cal-EPA”) Department of Toxic Substances and Control (“DTSC”) Guidance Document, Transportation Plan - Preparation Guidance for Site Remediation (“DTSC Guidance Document”; Cal-EPA, 2001).

The Contractor selected by the Agency to perform the limited soil excavation and disposal activities at the Site will be required to prepare an addendum to this Traffic Control and Waste Transportation Plan that specifies: (1) the actual off-Site disposal facilities and the transportation routes if actual disposal facilities vary from facilities listed in this Traffic Control and Waste Transportation Plan, (2) the Contractor’s selected transportation company, and (3) any proposed deviations from procedures specified in this Traffic Control and Waste Transportation Plan. The Contractor will implement the procedures documented in this Traffic Control and Waste Transportation Plan as well as the Contractor’s addendum to this Plan. EKI (“Client Representative”) and the Agency will verify that the selected Contractor implements this Plan and the Contractor’s addendum to this Plan.

1.1 Site Description and History

The Site occupies approximately 1.2 acres in a mixed residential and commercial area, and is located southwest of the intersection of Stanford Avenue and Horton Street in Emeryville, California (Figure B-1). The Site lies approximately 1,800 feet east of the San Francisco Bay shoreline. Temescal Creek cuts across the southern end of the Site and drains westward into San Francisco Bay. The Site is bordered on the north by City of Emeryville Public Works Facility, on the west by Union Pacific Railroad (“UPRR”) tracks, on the south by the Sherwin-Williams facility, and on the east by the Novartis Vaccines & Diagnostics facilities (a parking structure, parking lots, the PDU Building and Building H) and the Novartis Easement Parcel. The Agency has an easement for public pedestrian and bicycle access through the Novartis Easement Parcel and to improve the area. The Site was formerly used as a railroad spur and is currently undeveloped. A paved parking lot covers part of the Site.

EKI A90007.00 B-1 Appendix B

1.2 Regulatory Status

The Agency is acting as the Lead Agency under a Memorandum of Understanding (“MOU”) with the California Department of Toxic Substances Control (“DTSC”) and the San Francisco Regional Water Quality Control Board (“SFRWQCB”). Ms. Susan G. Colman (the “Site Manager”) will provide regulatory and technical support to the Agency. The Site Manager will confer with the DTSC for review and approval of this Traffic Control and Waste Transportation Plan and the selected Contractor’s Site-specific addendum.

1.3 Purpose and Objectives

The purpose of the Traffic Control and Waste Transportation Plan is to describe the general procedures and protocols to minimize potential health, safety, and environmental risks resulting from the transportation of material and/or equipment to off-Site disposal facilities during soil excavation activities at the Site.

1.4 Nature and Extent of Contamination

Previous environmental investigations have found that the chemicals of potential concern (“COPCs”) in soil at the Site are arsenic, lead, Aroclor 1260, dieldrin, and total petroleum hydrocarbons (“TPH”). Maximum concentrations of the primary COPCs in soil are 190 milligrams per kilogram (“mg/kg”) of arsenic, 744 mg/kg of lead, 0.752 mg/kg of Aroclor 1260, 0.589 mg/kg of dieldrin, 1,380 mg/kg of TPH as diesel (“TPH-d”), and 8,520 mg/kg of oil and grease. The EKI Site-specific Health and Safety Plan (“HSP”) in Appendix I of the SCP describes the associated potential chemical hazards.

2.0 CHARACTERISTICS OF MATERIAL TO BE TRANSPORTED

This section describes the waste characteristics of materials to be disposed of by the Contractor during implementation of the SCP.

2.1 Excavated Soil Characteristics

Implementation of the SCP for the Site will result in excavation of approximately 2,500 tons of soil that will be disposed of at off-Site disposal facilities. Based on available soil analytical and waste characterization data, it is anticipated that approximately 85-percent of excavated soil would be classified as non-RCRA (California) hazardous waste, and the remaining approximately 15-percent of the excavated soil would likely be classified as non-hazardous Class II waste. The nature of contaminants in excavated soil is described above in Section 1.4.

It is assumed that permitted land disposal facilities will be contacted by the selected Contractor prior to the commencement of excavation activities regarding available capacity and likelihood of acceptance of the excavated soil based on available data to

EKI A90007.00 B-2 Appendix B

allow for direct loading and disposal of the excavated soil from the Site. In general, excavated soils are planned to be directly off-hauled, not stockpiled.

2.2 Liquid Waste Characteristics

The liquid waste to be transported from the Site may include water from decontamination activities, captured storm water, or groundwater encountered during the excavation. This decontamination water may include some or all of the compounds found in soil. Liquid wastes will be characterized for disposal prior to off-Site transportation and disposal. It is not anticipated that the Contractor will need to dewater the excavations. It is also possible that accumulated storm water could be included as a liquid waste transported off-Site for disposal. Accumulated liquid wastes from the temporary on-Site sanitation facilities will also be periodically removed from the Site.

2.3 Treated Wood Waste Characteristics

Railroad ties from former railroad tracks at the Site are considered treated wood waste (“TWW”). The management standards for TWW, including storage, labeling, and disposal requirements, are specified in California Code of Regulations (“CCR”) Section 67386. TWW will be disposed off-Site at an approved TWW disposal facility as specified in CCR Section 67386.11. If TWW is stockpiled on-Site prior to disposal, temporary storage and labeling of TWW will be in accordance with CCR Section 67386.5 and 67386.6.

2.4 Other Waste Characteristics

Other waste generated at the Site may include demolition debris such as railroad tracks, concrete, asphalt, rock, and incidental debris from removal of the current Site features. Demolition debris will be disposed of at an off-Site non-hazardous disposal facility. If applicable, demolition debris such as concrete, asphalt, and railroad tracks will be recycled at an off-Site recycling facility proposed by the selected Contractor and accepted by the Agency. Vegetation debris will be disposed of as non-hazardous municipal waste. Other demolition debris will be disposed of at an off-Site non-hazardous disposal recycling facility. Trash resulting from the soil excavation activities will be accumulated on-Site and periodically removed as non-hazardous municipal waste.

3.0 DESTINATION OF MATERIAL

This section describes where the material generated during implementation of the SCP at the Site could potentially be disposed. The actual selected off-Site disposal facilities will be provided by the selected Contractor in a Site-specific addendum.

3.1 Soil Management

Transportation and disposal information for off-Site disposal presented herein is based on information provided by Allied Waste and Waste Management, Inc. Prior to performing the soil excavation work, it is recommended that the waste classifications be pre-

EKI A90007.00 B-3 Appendix B

approved by the landfills that will be accepting the soil for disposal. The Agency will approve the selected landfills from the options provided in the Contractor’s proposal.

Soil characterized as non-hazardous Class II waste may be disposed of at the following off-Site Class II waste disposal facilities or another permitted off-Site disposal facility as proposed by the selected Contractor:

1. Allied Waste – Keller Canyon Disposal Facility 901 Bailey Road, Pittsburg, California, 94565 (925) 625-4711

2. Waste Management, Inc. – Altamont Landfill 10840 Altamont Pass Rd, Livermore, California, 94550 (800) 449-6349

Soil characterized as non-hazardous Class II waste with high petroleum hydrocarbons may be disposed of at the following off-site Class II waste disposal facility or another permitted off-Site disposal facility as proposed by the selected Contractor:

1. Allied Waste – Forward Inc. Landfill 1145 W. Charter Way, Stockton, CA 95206 (800) 204-4242

Soil characterized as non-RCRA (California) hazardous waste or RCRA hazardous waste may be disposed of at the following off-Site Class I waste disposal facility:

1. Waste Management, Inc. – Kettleman Hills Facility 35251 Old Skyline Road, Kettleman City, California (559) 386-9711

Prior to performing the soil excavation work, the Contractor will confirm the waste classifications and profiles with the facilities that will be accepting the soil for disposal.

3.2 Liquid Waste Management

Groundwater, decontamination water, and storm water generated at the Site will be collected in appropriate holding tanks and sampled to evaluate the appropriate subsequent management. Liquid wastes will be trucked to permitted off-Site disposal facilities.

Wastewater characterized as non-hazardous Class II waste may be disposed of at the following off-Site disposal facilities or another permitted off-Site disposal facility as proposed by the selected Contractor:

1. Seaport Environmental 700 Seaport Blvd, Redwood City, California, 94063 (650) 264-1024

EKI A90007.00 B-4 Appendix B

2. East Bay Municipal Utilities District Wastewater Treatment Plant 2020 Wake Ave, Oakland, California 94607 (866) 403-2683

Wastewater characterized as hazardous waste may be disposed of at the following off- Site Class I waste disposal facility:

1. Waste Management, Inc. – Kettleman Hills Facility 35251 Old Skyline Road, Kettleman City, California (559) 386-9711

The on-Site temporary sanitation facilities will be periodically evacuated and the removed materials transported to the local wastewater treatment facility or other appropriate disposal facility for portable toilet wastes.

3.3 Treated Wood Waste Management

TWW may be disposed of at the following off-Site disposal facilities or another permitted off-Site disposal facility for TWW as proposed by the selected Contractor:

1. Waste Management, Inc. – Altamont Landfill 10840 Altamont Pass Rd, Livermore, California, 94550 (800) 449-6349

2. Allied Waste – Keller Canyon Disposal Facility 901 Bailey Road, Pittsburg, California, 94565 (925) 625-4711

3. Allied Waste – Forward Inc. Landfill 1145 W. Charter Way, Stockton, CA 95206 (800) 204-4242

3.4 Other Waste Management

Non-hazardous waste such as general trash, concrete, asphalt, rock, and other non- hazardous demolition debris may be disposed of at a local municipal waste landfill as proposed by the selected Contractor or if applicable, may be recycled at an off-Site recycling facility as proposed by the selected Contractor.

4.0 TRANSPORTATION MODE

This section describes how material generated during implementation of the SCP for the Site will be transported from the Site to the off-Site disposal location.

EKI A90007.00 B-5 Appendix B

4.1 Transportation of Soil and Treated Wood Waste

Excavated soil and TWW will be loaded into trucks such as end dump trucks and will be transported to the appropriate off-Site disposal facility via surface streets and highways. The selected Contractor will select the transporter for excavated soil and TWW. The Contractor will be required to submit proof of the transporter’s valid hauler registration. The Contractor will ensure that all vehicles utilized for transport of hazardous waste are properly registered, operated, and placarded (if necessary) in compliance with local, state, and federal requirements. All drivers shall be required to be able to provide proof of a valid driver’s license. All hazardous waste will be accompanied by federal Uniform Hazardous Waste Manifests. All TWW will be accompanied by shipping documentation as specified in CCR Section 67386.7.

Assuming 2,500 tons of soil are excavated, and each truck carries approximately 20 tons per load, an estimated 125 truckloads of soil will leave the Site. Depending on the hazard classification, destination, available trucks, excavation rate (for direct load), and traffic conditions, the project could likely have about 20 to 30 trucks per day leaving the Site for approximately 5 to 10 days.

4.2 Transportation of Liquid Waste

Wastewater will be transported to the appropriate off-Site disposal facility via surface streets and highways in 5,000-gallon tanker trucks, or other appropriately sized vehicle for transportation of liquid waste. The selected Contractor will select the transporter for wastewater.

4.3 Transportation of Other Waste

All non-hazardous waste (e.g., general trash, concrete, asphalt, rock, etc.) will be transported in appropriate covered transfer trucks and disposed off-Site at a local municipal waste landfill or, if applicable, will be recycled at an off-Site recycling facility as proposed by the selected Contractor.

5.0 TRANSPORTATION ROUTES

This section describes the routes that material generated during implementation of the SCP for the Site may take during transportation from the Site to the off-Site disposal locations. As discussed in Section 3.0, the actual selected off-Site disposal facilities will be provided by the selected Contractor. If the Contractor’s selected disposal facilities vary from those listed in Section 3.0, the Contractor will also provide transportation route maps to the selected disposal facilities in the Site-specific addendum, as described in Section 1.0.

The trucking around the Site would likely be conducted between the hours of 7 am and 3:30 pm. A list of emergency service organizations is included in the table below.

EKI A90007.00 B-6 Appendix B

Emergency Contact Agencies along Transportation Routes

Agency Contact Phone Number California Highway Patrol 911 City of Emeryville Police (510) 596-3700 City of Oakland Police (510) 777-3211 Alameda County Sheriff (510) 272-6878 California Department of Transportation (510) 286-4444 District 4 (Bay Area) (209) 948-7543 District 10 (Stockton) (559) 488-4348 District 6 (Fresno)

5.1 Local Transportation Route

The proposed local transportation routes from Interstate 880 to the Site and from the Site to Interstate 880 is shown on Figure B-2 and described below. There are no known schools or other sensitive use sites between the site and the freeways used to transport these wastes.

Route from the Interstate 880 South to Site:

● Take West Grand Avenue Exit

● Turn left on West Grand Avenue

● Turn left on Mandela Parkway

● Turn left on 34th Street

● Turn right on Wood Street

● Wood Street becomes Beach Street, continue on Beach Street

● Turn right on 40th Street

● Turn left on Horton Street

● Continue on Horton Street and arrive at Site

Route from the Interstate 880 North to Site:

● Take 7th Street Exit

● Cross 7th Street and continue on Frontage Road

● Turn right on West Grand Avenue

● Turn left on Mandela Parkway

EKI A90007.00 B-7 Appendix B

● Turn left on 34th Street

● Turn right on Wood Street

● Wood Street becomes Beach Street, continue on Beach Street

● Turn right on 40th Street

● Turn left on Horton Street

● Continue on Horton Street and arrive at Site

Route from the Site to Interstate 880 South:

● Turn right on Horton Street

● Turn right on Mandela Parkway

● Turn right on West Grand Avenue

● Turn left on Frontage Road

● Turn right on 7th Street

● Turn left onto Interstate 880 South ramp

Route from the Site to Interstate 880 North:

● Turn right on Horton Street

● Turn right on Mandela Parkway

● Turn right on West Grand Avenue

● Turn right onto Interstate 880 North ramp

5.2 Route to Disposal Facilities

The following are possible routes to the disposal facilities from Interstate 880 South:

● Seaport Environmental - From Interstate 880 South, take Highway 92 West to Highway 101 South to the Seaport Boulevard exit in Redwood City

● Waste Management’s Kettleman Hills Disposal Facility - From Interstate 880 South, take Highway 238 to Interstate 580 East to Interstate 5 South.

● Waste Management’s Altamont Disposal Facility - From Interstate 880 South, take Highway 238 to Interstate 580 East to Livermore.

EKI A90007.00 B-8 Appendix B

The following are possible routes to the disposal facilities from Interstate 880 North:

• Allied Waste’s Keller Canyon Landfill - From Interstate 880 North, take Interstate 80 East, take Highway 4 to Pittsburg.

• Allied Waste’s Forward Landfill - From Interstate 880 South, take Highway 238 to Interstate 580 East to Interstate 5 North to Stockton.

• EBMUD Wastewater Treatment Plant - From West Grand Ave, turn right on Wake Ave.

Potential routes to the possible disposal facilities in California are shown on Figure B-3.

6.0 TRAFFIC CONTROL AND LOADING PROCEDURES

This section describes the traffic control and loading procedures to be carried out by the Contractor during implementation of the SCP for the Site.

Per Emeryville’s noise ordinance, work hours are limited to weekdays between 7 am and 6 pm. However, it is anticipated that actual work hours for this project will be limited to between 7 am and 4 pm. The Contractor shall comply with all local sound control and voice level rules, regulations and ordinances which apply to any work performed.

6.1 Traffic Control On- and Off-Site

The Contractor will be required to provide a safe and convenient passage of public traffic in the vicinity of the Site during soil excavation activities. At a minimum, the Contractor will take the following steps before initiating the soil excavation:

● Determine the location and type of signage before work begins for the project;

● Determine methods and equipment the Contractor will use for closing lanes and for flagging and controlling one-way traffic, as necessary;

● Note the various traffic control devices specified to be used – some of these devices will require certificates of compliance; and

● Ensure flaggers are trained in accordance with the Manual on Uniform Traffic Control Devices (“MUTCD”) and MUTCD CA Supplement and the Construction Safety Orders.

Traffic control procedures that may be used during vehicle entrance to and exit from the Site include signs and a flag person. As appropriate, the flag person will slow or stop traffic on Horton Street as trucks exit the Site. The Contractor will close lanes in a manner that conforms to California Department of Transportation and the City of Emeryville requirements.

EKI A90007.00 B-9 Appendix B

Due to limited available area on-Site, trucks will be staged at the Staging Area at Wood/Beach Street (Figure B-2). The Contractor will call the trucks from the designated truck staging area as needed for loading.

6.2 Traffic Control During Loading

The Contractor will control work area entry of unauthorized personnel. All visitors to the Site who enter the defined work areas will be requested to sign the daily log maintained by the Contractor and will be advised of the potential health hazards associated with the excavation activities. Non-essential and non-certified individuals will be directed away from the work areas. The work zone boundary will be demarcated with orange cones or other visible delineation, such as fencing.

The degree of traffic control along the streets surrounding the Site will depend on Site conditions encountered at the time of soil removal. If traffic along the streets presents a problem as determined by the Contractor or Client Representatives, flagmen will be used to ensure safety and to regulate flow of trucks. Traffic control will comply with Agency of Emeryville and Alameda County requirements, as well as the current version of the California MUTCD, prepared by the California Department of Transportation. Trucks will temporary stage off-Site along Wood/Beach Street, as approved by the Agency. Truck traffic will enter the Site from Horton Street as shown on Figure B-2.

Soil will be loaded into trucks using an excavator, backhoe, or front-end loader. Loading will occur adjacent to the excavation area (or stockpile, if present). Based on the existing data, excavation areas will not extend below the water table into the saturated zone. In loading the trucks for off-Site transportation of excavated soil, control measures will be employed as necessary to prevent the generation of free water during transport in the event that soil from the saturated zone is excavated. Soil excavated from the saturated zone will be drained to the greatest extent feasible within the excavation prior to loading the soil for off-Site transportation, and if necessary, adsorbent material such as kitty litter could be added to reduce the overall moisture content prior to departure from the Site.

Prior to departure, trucks will be covered with tarps to prevent the release of dust once the trucks leave the Site. After loading, all impacted materials (e.g., mud, soil) on the exteriors of the trucks will be removed and placed either into the current truck, a designated storage bin of similar material, or the excavation of origin, prior to the trucks leaving the work area. The actual loading, turn around, and decontamination locations will be determined in the field based on Site conditions at the time of the work. While on-truck axle scales may be used as an indication of truck weight capacity, all trucks conveying waste will be weighed on certified scales at the off-Site disposal facility. In addition, trucks will stop, as required, at any and all state-operated weigh stations en route to their designated off-Site disposal facility.

After covering the load, the trucks will proceed to the decontamination pad and following decontamination, they will exit the Site on Horton Street. As discussed in the Decontamination Plan (Appendix C of the SCP), the location of the decontamination pad will be determined by the Contractor based on staging of excavation activities.

EKI A90007.00 B-10 Appendix B

The following control measures that will be addressed by the Contractor are described below. Specific means and methods will be determined by the Contractor in the Contractor’s Plan within the guidance of the specifications, and may be adjusted in the field to address unforeseen conditions.

● Traffic control will comply with City of Emeryville and Alameda County requirements, as well as the current version of the California Manual on Uniform Traffic Control Devices, prepared by the California Department of Transportation;

● Loading will occur adjacent to the excavation area (or stockpile, if present);

● Prior to entering the decontamination area, the loads will be covered with tarps by personnel with appropriate health and safety training;

● Decontamination will be conducted on-Site in accordance with the Decontamination Plan (Appendix C of the SCP);

● Tarps will be employed to seal/cover cargo containers prior to departure from the Site to prevent the release of dust, debris, or hazardous wastes/substances during transport; and

● Prior to leaving the Site, the Contractor will inspect each vehicle to ensure proper loading, covering/sealing, decontamination, placarding (if required), and manifesting has been implemented.

7.0 RECORD KEEPING

The Contractor will maintain daily field logs. Each daily log will include the date, time, weight/volume, waste/material, trucking company, driver, and vehicles used for each trip. Daily field logs will be prepared by hand or on laptop computer in the field at the time of performance, showing:

• Truck Identification and Company.

• Time scheduled in, or arrival upon return.

• Manifest Number.

• Waste type loaded and area removed from.

• Estimated waste quantity entered on manifest.

• Time departed from the Site.

Soils that are classified as RCRA hazardous waste or non-RCRA California hazardous waste will be accompanied by a Uniform Hazardous Waste Manifest that will be signed by both the transporter and a representative of the Agency that is authorized to sign

EKI A90007.00 B-11 Appendix B

hazardous waste manifests. Soil that is classified as non-hazardous waste will be accompanied by a bill of lading to track shipment. TWW will be accompanied by shipping documentation as specified in CCR Section 67386.7.

All manifests and shipping documents will be carried in the truck cab within reach of the driver in accordance with U.S. Department of Transportation (“DOT”) regulations. Other documents furnished to the driver with each load will include either a map or driving directions specifying the approved transportation routes. Upon arrival at the Site, new drivers will be furnished a copy of this Traffic Control and Waste Transportation Plan and will receive a health and safety briefing as described in Section 8.0.

8.0 HEALTH AND SAFETY

All drivers hauling hazardous waste and entering the Site exclusion zone will have current HAZWOPER training, medical clearance, and possess the appropriate commercial driver’s license. Transporters hauling hazardous waste will be registered hazardous waste haulers. After loading is complete, and the load is covered, the drivers will proceed to the decontamination area. The Decontamination Plan is included as Appendix C of the SCP.

The selected Contractor shall implement a Site-specific health and safety plan (“HSP”), as applicable to transportation personnel. At a minimum, the HSP will include the following:

• All workers should be properly trained in hazardous waste operations in accordance with 29 CFR 1910.120 and CCR Title 8 Section 5192;

• State the type of health and safety training that will be provided to Site personnel and vehicle operators;

• Describe what the transportation personnel will and will not be permitted to do, based on training, during loading;

• Discuss how the health and safety plan will be communicated to drivers (e.g., tailgate meetings) and how the plan will be enforced; and

• Describe notification procedures and contingency plans for accidents or breakdowns en route.

Site personnel will be qualified and trained in accordance with the requirements of the Contractor’s Site-specific SSP. All personnel will receive a Site-specific orientation on the physical and chemical hazards anticipated to be present in the wastes they may be potentially exposed to or work with in the course of assigned job duties.

EKI A90007.00 B-12 Appendix B

9.0 CONTINGENCY PLAN

This contingency plan is prepared for chemical spills and other accidents that may occur with transport vehicles on-Site or in transport between the Site and off-Site disposal facilities. It is also applicable for vehicles delivering construction material, outside services, and supplies. It addresses the steps that need to be followed for all accidents as well as several accident-specific steps. For informational purposes, copies of this plan will be provided to drivers carrying hazardous waste excavated from the Site.

It is the responsibility of the transportation contractor to notify the appropriate emergency service organizations prior to the transportation of hazardous wastes through their areas.

Due to the different factors that could impact any off-Site spill scenario, it is not appropriate to describe specific spill mitigation procedures in this document. The following is a list of possible steps that should be taken in the event of an off-Site release:

• If possible, stop vehicle safely, move off roadway, and isolate vehicle and load (place traffic cones and keep observers from the area) to prevent additional accidents.

• Survey the situation, identify any injured parties, and determine immediate cause and potential implications (e.g., wind direction, potential receptors, etc.).

• Call for emergency assistance by dialing 911.

• Report incident using the 24-hour emergency contact information included on the hazardous waste manifest.

• Report incident to State of California Office of Emergency Services by contacting the California State Warning Center (800-852-7550).

• Assist any injured personnel.

• If possible, contain spills of contaminated material.

• Contact Agency’s construction manager.

• Complete incident report.

9.1 Steps Required For All Accidents

• Secure the area of vehicles and spill, if appropriate. If possible, stop vehicle safely off roadway to avoid additional accidents.

• Assist any injured personnel.

EKI A90007.00 B-13 Appendix B

• Assess severity of accident and call 911 for emergency assistance as appropriate.

• Pursuant to U.S. Department of Transportation Regulations 392.22 to 392.25, place at appropriate location(s) traffic control device(s). It is recommended that flame-producing signals not be used. Keep fire, flames, lighted cigarettes, cigars, and pipes away from the scene.

• Notify the Contractor and the transportation company’s operations manager or designee. The transportation company’s operations manager or designee will communicate with Contractor and coordinate response with appropriate agencies.

9.2 Steps for Spills of Diesel Fuel, Hydraulic Fluid, or Other Automotive Fluid(s)

• Contain the spill and prevent liquid from draining onto roadways, sewers, storm drain, or streams.

• If needed, add protection around drains and sewer inlets.

• Notify Contractor Site Superintendent and transportation company supervisors.

• The transportation company supervisor will provide guidance on the notification of:

o California Highway Patrol o Local Police and Fire Departments o Local Consolidated Unified Permitting Agency (“CUPA”) o U.S. Coast Guard and other spill notification agencies

• If on the work site, Contractor will implement cleanup procedures; subcontractors and suppliers must follow their own procedures regarding conducting cleanup for spills on public roads and non-Site private properties.

• Wear personal protective equipment as outlined in the Contractor’s Site-specific HSP (Section 8.0).

9.3 Steps for Spills of Other Chemicals

• Contain the spill, prevent liquid from draining onto roadways, sewers, storm drain, or streams.

• If needed, add protection around drains and sewer inlets.

• Notify Contractor Site Superintendent and transportation company supervisors.

• The supervisor will provide guidance on the notification of:

o California Highway Patrol

EKI A90007.00 B-14 Appendix B

o Local Police and Fire Departments o Local CUPA o U.S. Coast Guard and other spill notification agencies

• Refer to shipping papers to determine the name and hazard classes of the chemicals. Give this information to any first responders. Advise fire department if the chemical is water reactive.

• Where appropriate, Contractor employees may conduct cleanups. This will be done using personal protective equipment as outlined in the Contractor’s Site- specific HSP (Section 8.0).

9.4 Loading and Unloading

The vehicle driver is responsible for ensuring that materials are safely loaded and unloaded from the driver’s vehicle. This responsibility will include, but is not limited to:

• Making certain that the loading and dumping conditions are safe.

• Ensuring that each load is evenly distributed through the trailer.

• Determining that the ground for loading and unloading is stable - do not unload on uneven or unstable ground.

• Determining that the wind conditions and vehicle direction relative to the wind are appropriate – do not dump during heavy crosswinds.

• Ensuring that there are no obstacles at the dump locations – do not dump when adjacent to another vehicle.

• Ensuring that locks on tailgates have been released prior to dumping and suspensions are set properly. Pay close attention to the vehicles and pedestrians at all locations.

10.0 REFERENCES

Cal-EPA, 2001. Transportation Plan - Preparation Guidance for Site Remediation, Interim Final, California Environmental Protection Agency, Department of Toxic Substance Control, December 2001, available at: www.dtsc.ca.gov/HazardousWaste/Transporters/upload/SMB_Transportation-Plan.pdf.

EKI, 2010. Site Cleanup Plan, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., March 2010.

EKI A90007.00 B-15 Appendix B

CMF Building Novartis Stanford Avenue Horton Street Easement Parcel

PDU Building Building H

Surface Parking Sherwin-Williams Facility

Parking Structure

City of Emeryville HORTON LANDING PARK Public Works Facility

Union Pacific Railroad

Legend: Notes:

Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Aerial photograph from Google Earth Erler & Open Space Easement to City of Emeryville Pro, 2009. Kalinowski, Inc. Site Map

Horton Landing Park Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure B-1 G:\A90007.00\Mar10\Figure3-03-10 SiteMap.dwg - B-1 Horton Landing Park Emeryville, CA

Truck Staging Area

Off-Ramp to Highway 880 S

On-Ramp to Highway 880 N

On-Ramp to Highway 880 S

Off-Ramp to Highway 880 N

Legend: Erler & Truck Route to Horton Landing Park from Highway 880 Kalinowski, Inc. Truck Route to Highway 880 from Horton Landing Park Local Transportation Route

Notes: Horton Landing Park Emeryville, CA 1. All locations are approximate. 0 1800 3600 March 2010 2. Basemap source: The Thomas Guide, EKI A90007.00 Bay Area Metro, 2007. (Approximate Scale in Feet) Figure B-2 Keller Canyon Horton Landfill 20 0 20

Landing Park (Approximate Scale in Miles) Emeryville, CA * Forward Landfill Legend:

Traffic Route EBMUD WWTP * Horton Landing Park

Abbreviations: Altamont EBMUD = East Bay Municipal Utilities District Landfill Seaport WWTP = Waste Water Treatment Plan Environmental

Notes: 1. All locations are approximate. 2. Basemap Source: The Thomas Guide Digital Edition, 2003/4

Erler & Kalinowski, Inc. Routes to Disposal Facilities

Horton Landing Park Emeryville, CA Kettleman Hills March 2010 Disposal Facility EKI A90007.00 Figure B-3

APPENDIX C DECONTAMINATION PLAN

APPENDIX C

DECONTAMINATION PLAN Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

1.0 INTRODUCTION...... C-1 1.1 Site Description and History...... C-1 1.2 Regulatory Status ...... C-1 1.3 Objective ...... C-1 1.4 Nature and Extent of Contamination ...... C-2

2.0 DECONTAMINATION PROCEDURES ...... C-2 2.1 General...... C-2 2.2 Dry Weather Decontamination ...... C- 3 2.2.1 General ...... C-3 2.2.2 Truck Tires ...... C-3 2.3 Wet Weather Decontamination ...... C-3 2.3.1 General ...... C-3 2.3.2 Truck Tires ...... C-3

3.0 DECONTAMINATION PAD AND ACCESS ROAD ...... C-3 3.1 Access Road ...... C-4 3.2 Decontamination Pad Construction ...... C-4 3.3 Routine Maintenance ...... C-4 3.4 Decontamination Pad Decommissioning ...... C-4

4.0 WATER CHARACTERIZATION AND DISPOSAL ...... C-5

5.0 REFERENCES ...... C-5

FIGURES

C-1 Site Map C-2 Proposed Lateral and Vertical Extents of Excavations

EKI A90007.00 C-i Appendix C

1.0 INTRODUCTION

This Decontamination Plan has been prepared by Erler & Kalinowski, Inc. (“EKI”) on behalf of our client, the City of Emeryville Redevelopment Agency (“Agency”), to describe the general decontamination procedures and protocols that will be employed by the Contractor during implementation of the Site Cleanup Plan (“SCP”) (EKI, 2010) for the Horton Landing Park property (the “Site”) in Emeryville, California (see Figures C-1 and C-2). The selected cleanup alternative in the SCP entails limited excavation and off- Site disposal of impacted shallow soils and transportation of those soils to a permitted off-Site disposal facility. The Agency will select a Contractor to implement the SCP.

The Contractor selected by the Agency to perform the limited soil excavation and disposal activities at the Site will be required to prepare an addendum to this Decontamination Plan if the Contractor proposes deviations from procedures specified in this Plan. The selected Contractor will be responsible for implementing the Decontamination Plan, and EKI (“Client Representative”) and the Agency will verify that the Contractor implements this Plan and the Contractor’s addendum to this Plan.

1.1 Site Description and History

The Site occupies approximately 1.2 acres in a mixed residential and commercial area, and is located southwest of the intersection of Stanford Avenue and Horton Street in Emeryville, California (Figure C-1). The Site lies approximately 1,800 feet east of the San Francisco Bay shoreline. Temescal Creek cuts across the southern end of the Site and drains westward into San Francisco Bay. The Site is bordered on the north by City of Emeryville Public Works Facility, on the west by Union Pacific Railroad (“UPRR”) tracks, on the south by the Sherwin-Williams facility, and on the east by the Novartis Vaccines & Diagnostics facilities (a parking structure, parking lots, the PDU Building and Building H) and the Novartis Easement Parcel. The Agency has an easement for public pedestrian and bicycle access through the Novartis Easement Parcel and to improve the area. The Site was formerly used as a railroad spur and is currently undeveloped. A paved parking lot covers part of the Site.

1.2 Regulatory Status

The Agency is acting as the Lead Agency under a Memorandum of Understanding (“MOU”) with the California Department of Toxic Substances Control (“DTSC”) and the San Francisco Regional Water Quality Control Board (“SFRWQCB”). Ms. Susan G. Colman (the “Site Manager”) will provide regulatory and technical support to the Agency. The Site Manager will confer with the DTSC for review and approval of this Decontamination Plan and the selected Contractor’s Site-specific addendum.

1.3 Objective

The objective of this Decontamination Plan is to establish the project-specific minimum requirements for the decontamination of equipment as it leaves the active work area and

EKI A90007.00 C-1 Appendix C

before it is removed from the Site. The procedures contained in this Decontamination Plan apply to all equipment used on the Site, including the trucks hauling waste soil off- Site as well as the trucks bringing clean fill to the Site to backfill the excavation.

The selected Contractor will be required to prepare a Site-specific Health and Safety Plan (“HSP”) which will address personnel decontamination procedures.

1.4 Nature and Extent of Contamination

Previous environmental investigations have found that the chemicals of potential concern (“COPCs”) in soil at the Site are arsenic, lead, Aroclor 1260, dieldrin, and total petroleum hydrocarbons (“TPH”). Maximum concentrations of the primary COPCs in soil are 190 milligrams per kilogram (“mg/kg”) of arsenic, 744 mg/kg of lead, 0.752 mg/kg of Aroclor 1260, 0.589 mg/kg of dieldrin, 1,380 mg/kg of TPH as diesel (“TPH-d”), and 8,520 mg/kg of oil and grease. The EKI Site-specific HSP in Appendix I of the SCP describes the associated potential chemical hazards.

2.0 DECONTAMINATION PROCEDURES

2.1 General

Decontamination work will be conducted, at a minimum, in accordance with the methodologies provided in this Decontamination Plan. Decontamination personnel will be equipped with personnel protective equipment (“PPE”) in accordance with the Contractor’s HSP. PPE will minimally consist of high visibility clothing, impermeable gloves, safety footwear, eye protection, a hard hat, and if required, respiratory protection.

All field equipment used at the Site will be decontaminated by the Contractor prior to transporting the equipment off-Site. Trucks entering and leaving the Site will be inspected for signs of visible contamination. Tracking of sediment from wheels/tires will be minimized to the maximum extent possible. Truck decontamination will occur on the decontamination pad. Decontamination will include removal of soil or mud (anything larger than approximately ½-inch). Decontamination of trucks will be performed on truck tires, wheel wells, mud flaps, the inside of fenders, tailgates, and the outsides of the truck bed and other areas where significant accumulations of dirt may be present.

Details for construction and decommissioning of the decontamination pad are described in Section 3.0. The decontamination pad will be covered with water-resistant tarpaulins during periods of weather stoppage and at the end of the work day if rain is forecast.

Compressed air will not be used for decontamination or cleaning of any equipment.

EKI A90007.00 C-2 Appendix C

2.2 Dry Weather Decontamination

2.2.1 General

During dry weather, trucks leaving the Site will be decontaminated using brooms, brushes, shovels, and plastic scrapers. Loose dirt will be scraped or swept off truck tires, mud flaps, fenders, and other accessible areas.

2.2.2 Truck Tires

If tire dirt cannot be readily removed from tire treads using dry methods, pressure washers will be used to remove it. The entire circumference of truck tires will be inspected before the truck is allowed to leave the Site. The inspector/decontamination technician will inspect all tires after the initial decontamination. Upon completing the inspection, the truck driver will move the truck forward such that the areas of the tires previously in contact with the decontamination pad can be inspected and decontaminated, as necessary.

2.3 Wet Weather Decontamination

2.3.1 General

Mops and soapy water will be the preferred wet weather decontamination tool. If a mop is not practicable because of the time required for cleaning, pressure washers will be used to remove surface material from trucks during wet weather conditions. Pressure washers will be limited to 3,200 psi maximum pressure. If needed, any detergent additives will consist of non-phosphate detergents. Pressure washer operators will be instructed not to spray their wands into the truck beds where the spray might impact bed liners. If pressure washers are used, screens will be set up within the decontamination pad to capture overspray and backsplash from the pressure washing.

2.3.2 Truck Tires

The entire circumference of truck tires will be inspected before the truck is allowed to leave the Site. The inspector/decontamination technician will inspect all tires after the initial decontamination. Upon completing the inspection, the truck driver will move the truck forward such that the areas of the tires previously in contact with the decontamination pad can be inspected and decontaminated, as necessary.

3.0 DECONTAMINATION PAD AND ACCESS ROAD

A decontamination pad will be constructed to capture decontamination wash water. The location of the decontamination pad and access road, if needed, will be determined by the Contractor based on staging of excavation activities.

EKI A90007.00 C-3 Appendix C

3.1 Access Road

If needed based on Site surface conditions during excavation activities, the Contractor will construct a temporary access road of gravel or crushed rock between the excavation area where trucks will be loaded, the decontamination pad, and the Site exit for the trucks to provide access for the trucks in all weather conditions while keeping the trucks as clean as practicable.

3.2 Decontamination Pad Construction

The Contractor will construct a decontamination pad where trucks and equipment can be decontaminated prior to exiting the Site. The decontamination pad will be a bermed, plastic lined area, constructed large enough to accommodate the largest piece of equipment used on-Site. The pad will be laid with a foundation of clean fill; bermed using clean fill, sand bags, or asphalt curb; sloped towards a collection point, and lined with 10-mil plastic sheeting, or a favorably reviewed equivalent. A protective geotextile will be placed over the plastic liner before placing a layer of gravel at least 4-inches thick on top of the liner.

Sump pumps or an equivalent liquid transfer system will be utilized to transfer wash water from the pad into 55-gallon drums or holding tanks. The sump and decontamination pad will be inspected and maintained on a daily basis or as determined necessary during the construction period work.

3.3 Routine Maintenance

The water level in the sump for the decontamination pad will be monitored at the beginning and end of the work day and hourly during rainfall events. The sump will be pumped out when the water level in the sump rises to within 2 inches of the top of the low end of the decontamination pad and before every significant rainfall event. Water removed from the sump should be transferred to 55-gallon drums or a holding tank with secondary containment.

After the last truck of the day has passed over the decontamination pad, loose dirt left on the surface of the pad will be removed and the surface of the gravel will then be cleaned with pressure washers if excessive soil is visible on the pad. The sump will be checked for sediment on a daily basis and emptied as needed.

3.4 Decontamination Pad Decommissioning

At the conclusion of Site work, the decontamination pad will be decommissioned by removing water transfer equipment, the plastic liners, gravel, berms, and the underlying fill used to create the foundation for the pad. The plastic liner will be properly discarded and sent to an appropriate landfill along with other construction debris/contaminated soil. The fill material and gravel will be collected and placed in transport vehicles and sent to an appropriate landfill for disposal as part of the final off-Site load.

EKI A90007.00 C-4 Appendix C

4.0 WATER CHARACTERIZATION AND DISPOSAL

It is anticipated that most of the soil collected as part of decontamination would be disposed of as non-RCRA (California) hazardous waste, based on soil analytical data for the Site, and disposed of off-Site at the selected disposal facility by the Contractor (see Traffic Control and Waste Transportation Plan in Appendix B of the SCP). Wash and rinse water collected from the decontamination pad will be collected in 55- gallon drums or a holding tank. At the conclusion of the work, a composite sample of the drums and/or holding tank contents will be collected and analyzed for COPCs identified for the Site. Based on the profile sample analytical results, an appropriate disposal facility for liquid wastes will be selected. The selected disposal facility may require additional analyses to accept the wastes.

Excavation dewatering is not anticipated to be required to complete the excavation. However, if field conditions necessitate excavation dewatering, the water will be characterized, transported, and disposed of at an approved off-Site disposal facility.

5.0 REFERENCES

EKI, 2010. Site Cleanup Plan, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., March 2010.

EKI A90007.00 C-5 Appendix C

CMF Building Novartis Stanford Avenue Horton Street Easement Parcel

PDU Building Building H

Surface Parking Sherwin-Williams Facility

Parking Structure

City of Emeryville HORTON LANDING PARK Public Works Facility

Union Pacific Railroad

Legend: Notes:

Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Aerial photograph from Google Earth Erler & Open Space Easement to City of Emeryville Pro, 2009. Kalinowski, Inc. Site Map

Horton Landing Park Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure C-1 G:\A90007.00\Mar10\Figure3-03-10 SiteMap.dwg - C-1 B-1 CMF Building Horton Street Area H

PDU Building

B-2

Storm Drain Channel Surface Parking 7.6

A3 G1 Area G G2 A1 7.0 3.7 Temescal Creek A4 Parking Structure 7.0 Proposed Excavation of 1 foot of Soil F5 Area A TW F2 F6 F4 7.9 A5 E13 F3 Area F F10 Embankment Fill Area E11 6.8 4.5 7.2 7.0 F1 A2 E9 E2 F9 A6 E7 E12 E14 E5 Area E F7 F8 E10 B3 C3 C1 E1 E3 E6 E8 7.2 B1 C4 C5 E4 B5 D9 D10 City of Emeryville B4 Area C D3 D7 D2 C2 C6 7.3 Public Works Facility B7 D5 Area D D1 7.8 Area B D4 D6 D8 B2 B9 B6 B10 B8

Union Pacific Railroad

Legend:

Approximate Property Boundary Abbreviations: Notes: Novartis Easement Parcel msl = Mean sea level 1. All locations are approximate. Open Space Easement to City of Emeryville 2. Basemap source: Topographic and Boundary Survey Erler & Grid Area Boundary Map, SANDIS, 21 December 2007. Trench Location (EKI, 2009) Kalinowski, Inc. Soil Boring (EKI, 2009) Soil Boring (EKI, 2002) Proposed Lateral and Vertical Extents of Excavations Proposed Surface Elevation Contour (feet msl)

Proposed Excavation of 1 foot of Soil Horton Landing Park Emeryville, CA Embankment Fill Area 0 75 150 March 2010 Proposed Excavation for Pedestrian Bridge Footings EKI A90007.00 (Approximate Scale in Feet) 7.9 Proposed Bottom Excavation Elevation (feet msl) Figure C-2 G:\A90007.00\Mar10\FigureVerticalandExtentsLateral3-03-10 Excavations.dwg - C-2

APPENDIX D DUST CONTROL PLAN

APPENDIX D

DUST CONTROL PLAN Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

1.0 INTRODUCTION...... D-1 1.1 Site Description and History...... D-1 1.2 Regulatory Status ...... D-1 1.3 Objective ...... D-1 1.4 Nature and Extent of Contamination ...... D-2 1.5 Regulatory Requirement ...... D-2

2.0 DUST MONITORING ...... D-2

3.0 DUST CONTROL PROCEDURES ...... D-2

4.0 CONTINGENCY MEASURES FOR DUST CONTROL...... D-3

5.0 CONTINGENCY MEASURES FOR ODOR CONTROL ...... D-4

6.0 REFERENCES ...... D-4

FIGURES

D-1 Site Map D-2 Proposed Excavation Areas and Perimeter Air Monitoring Station Locations

EKI A90007.00 D-i Appendix D

1.0 INTRODUCTION

This Dust Control Plan has been prepared by Erler & Kalinowski, Inc. (“EKI”) on behalf of our client, the City of Emeryville Redevelopment Agency (“Agency”), to describe the general dust control procedures and protocols that will be employed by the Contractor during implementation of the Site Cleanup Plan (“SCP”) (EKI, 2010) for the Horton Landing Park property (the “Site”) in Emeryville, California (Figure D-1). The selected cleanup alternative in the SCP entails limited excavation and off-Site disposal of impacted shallow soils and transportation of those soils to a permitted off-Site disposal facility. The Agency will select a Contractor to implement the SCP.

The Contractor selected by the Agency to perform the limited soil excavation and disposal activities at the Site will be required to prepare an addendum to this Dust Control Plan if the Contractor proposes deviations from procedures specified in this Plan. The selected Contractor will be responsible for implementing the Dust Control, and EKI (“Client Representative”) and the Agency will verify that the Contractor implements this Plan and the Contractor’s addendum to this Plan.

1.1 Site Description and History

The Site occupies approximately 1.2 acres in a mixed residential and commercial area, and is located southwest of the intersection of Stanford Avenue and Horton Street in Emeryville, California (Figure D-1). The Site lies approximately 1,800 feet east of the San Francisco Bay shoreline. Temescal Creek cuts across the southern end of the Site and drains westward into San Francisco Bay. The Site is bordered on the north by City of Emeryville Public Works Facility, on the west by Union Pacific Railroad (“UPRR”) tracks, on the south by the Sherwin-Williams facility, and on the east by the Novartis Vaccines & Diagnostics facilities (a parking structure, parking lots, the PDU Building and Building H) and the Novartis Easement Parcel. The Agency has an easement for public pedestrian and bicycle access through the Novartis Easement Parcel and to improve the area. The Site was formerly used as a railroad spur and is currently undeveloped. A paved parking lot covers part of the Site.

1.2 Regulatory Status

The Agency is acting as the Lead Agency under a Memorandum of Understanding (“MOU”) with the California Department of Toxic Substances Control (“DTSC”) and the San Francisco Regional Water Quality Control Board (“SFRWQCB”). Ms. Susan G. Colman (the “Site Manager”) will provide regulatory and technical support to the Agency. The Site Manager will confer with the DTSC for review and approval of this Dust Control Plan and the selected Contractor’s Site-specific addendum.

1.3 Objective

The objective of this Dust Control Plan is to establish the project-specific requirements for control of dust emissions during construction activities at the Site, including

EKI A90007.00 D-1 Appendix D

excavation, backfilling, grading operations, stockpiling soil, and construction vehicle traffic.

1.4 Nature and Extent of Contamination

Previous environmental investigations have found that the chemicals of potential concern (“COPCs”) in soil at the Site are arsenic, lead, Aroclor 1260, dieldrin, and total petroleum hydrocarbons (“TPH”). Maximum concentrations of the primary COPCs in soil are 190 milligrams per kilogram (“mg/kg”) of arsenic, 744 mg/kg of lead, 0.752 mg/kg of Aroclor 1260, 0.589 mg/kg of dieldrin, 1,380 mg/kg of TPH as diesel (“TPH-d”), and 8,520 mg/kg of oil and grease. The EKI Site-specific Health and Safety Plan (“HSP”) in Appendix I of the SCP describes the associated potential chemical hazards.

1.5 Regulatory Requirement

In compliance with the Bay Area Air Quality Management District (“BAAQMD”) and the California Code of Regulations, work activities must be completed in accordance with the airborne Action Levels for COPCs, presented in the Perimeter Air Monitoring Plan (“AMP”), Appendix E of the SCP. The AMP was prepared in accordance with BAAQMD Regulation 6 pertaining to visible particulate matter.

2.0 DUST MONITORING

Work activities will be completed in accordance with the airborne Action Levels for COCs presented in the AMP, Appendix E of the SCP. In accordance with the AMP, real time data will be collected at perimeter air monitoring stations to assess weather conditions and to assess dust emissions emitting from work activities at the Site (Figure D-2). Work activities must be completed such that the airborne Action Levels for COPCs at the perimeter air monitoring stations are not exceeded.

The Contractor will be required to prepare a Site-specific HSP which will address health and safety air monitoring for on-Site personnel.

3.0 DUST CONTROL PROCEDURES

Construction activities such as excavation, backfilling, grading operations, stockpiling soil, construction vehicle traffic, and wind flowing over disturbed soil may generate dust when the exposed soil surfaces are dry. Dust control measures have been developed and will be performed during field activities. Dust control procedures will be performed every day (including weekends and holidays) that excavation and backfilling activities are being conducted. The Contractor will employ the following dust control measures throughout the project:

• Water will be misted or sprayed by a water truck at least twice per day but also as often as needed to prevent formation of dust while clearing the Site, excavating,

EKI A90007.00 D-2 Appendix D

transferring soil on-Site, stockpiling, or loading or decontaminating transportation vehicles. • Vehicle speeds will be limited to 5 miles per hour on the Site. • Drop heights will be kept to a minimum while loading transport vehicles. • Vehicle tires will be cleaned prior to leaving the Site in accordance with the Decontamination Plan (Appendix C of the SCP). • Adjacent public streets on- and off-Site will be inspected at least three times per day including once at the end of the shift and will be swept using a street sweeper if necessary. • In the event that wind speeds exceed 20 miles per hour for more than 15 minutes or when dust control measures are not able to prevent visible dust emissions, soil- moving activities will be halted until wind speeds decrease and no visible emissions are observed. • Trucks and transport vehicles will be covered when hauling soil, sand, and other loose material off-Site. • Excavated soils that may potentially require waste characterization during soil excavation activities and prior to off-Site disposal, assumed to be limited in volume, will be stockpiled or loaded directly into lined intermodal bins. Stockpiled soil or soil placed in intermodal bins will be handled as potential hazardous waste until proven otherwise. • Stockpiled soil will be placed on plastic sheeting (minimum 10-mil thickness) and securely covered with plastic sheeting (minimum 10-mil thickness). • All stockpiles which are not being actively handled will be covered with weighted plastic sheeting or tarps, or watered twice daily, or sprayed with a non-toxic chemical soil binder acceptable to the Department of Toxic Substances Control. Water will be applied at least three times a day or soil stabilizers will be applied to all unpaved access roads, parking areas, and staging areas at the Site as needed to prevent dust. • A stabilized construction entrance/exit will be constructed and used for any unpaved access way. • All stockpiles or bins will be covered at the end of each work day.

On weekends and holidays when excavation and backfilling activities are not being conducted, exposed soils will be covered with plastic sheeting and weighted to prevent dust generation.

4.0 CONTINGENCY MEASURES FOR DUST CONTROL

If Client Representative notifies the Contractor that dust or metals Action Levels from the AMP are exceeded at the Site Perimeter, the Contractor will immediately cease all dust

EKI A90007.00 D-3 Appendix D

generating activities and increase and/or revise dust control measures to the satisfaction of the Client Representative before resuming work. These measures may include increasing the magnitude and frequency of dust control measures and addition of a favorable reviewed dust palliative or surfactant to dust control water. If further dust control measures are needed due to meteorological conditions, the Contractor may implement additional dust control fabric or windscreens and enclosure of transport loading operations.

5.0 CONTINGENCY MEASURES FOR ODOR CONTROL

The Contractor will implement odor control measures if observations or complaints by the Contractor, Client Representative, regulatory agencies, air pollution control authorities, or nearby tenants indicate the need for odor control measures. The Contractor will employ necessary measures to suppress odor that may include: • Misting or spraying at a frequency during the work with water amended with an odor suppressant such as Simple Green solution or equivalent. • Covering odorous open pits, exposed sidewalls, or stockpiles with soil or plastic sheeting to prevent continued release of odors.

6.0 REFERENCES

EKI, 2010. Site Cleanup Plan, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., March 2010.

EKI A90007.00 D-4 Appendix D

CMF Building Novartis Stanford Avenue Horton Street Easement Parcel

PDU Building Building H

Surface Parking Sherwin-Williams Facility

Parking Structure

City of Emeryville HORTON LANDING PARK Public Works Facility

Union Pacific Railroad

Legend: Notes:

Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Aerial photograph from Google Earth Erler & Open Space Easement to City of Emeryville Pro, 2009. Kalinowski, Inc. Site Map

Horton Landing Park Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure D-1 G:\A90007.00\Mar10\Figure3-03-10 SiteMap.dwg - D-1 CMF Building Novartis Stanford Avenue Horton Street Easement Parcel

PDU Building

7.6 Surface Parking Sherwin-Williams Facility

7.0 3.7 Temescal Creek Parking Structure 7.0 Proposed Excavation of 1 foot of Soil TW

7.9 Embankment Fill Area 6.8 4.5 7.2 7.0

7.2

City of Emeryville 7.3 Public Works Facility 7.8

Union Pacific Railroad

Predominant Wind Direction

Legend: Abbreviations: Notes:

Approximate Property Boundary msl = Mean sea level 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Topographic and Boundary Survey Erler & Map, SANDIS, 21 December 2007. Open Space Easement to City of Emeryville 3. Locations of air monitoring and meteorological stations Kalinowski, Inc. Proposed Excavation of 1 foot of Soil are subject to change based on access issues pending Embankment Fill Area contractor layout of remediation operations and staging. Proposed Excavation Areas and Proposed Excavation for Pedestrian Bridge Footings Perimeter Air Monitoring Station Locations

7.9 Proposed Bottom Excavation Elevation (feet msl) Horton Landing Park Approximate Location of Air Monitoring Station Emeryville, CA 0 75 150 March 2010 Approximate Location of Meteorological Monitoring Station EKI A90007.00 (Approximate Scale in Feet) Figure D-2 G:\A90007.00\Mar10\Figure Excavation - D-2 Area andMonitoring Air Station.dwg3-03-10

APPENDIX E PERIMETER AIR MONITORING PLAN

APPENDIX E

PERIMETER AIR MONITORING PLAN Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

1.0 INTRODUCTION...... E-1

2.0 DEVELOPMENT OF AIRBORNE ACTION LEVEL FOR PM10 DUST AT THE SITE PERIMETER ...... E-1

3.0 DEVELOPMENT OF AIRBORNE ACTION LEVELS FOR IDENTIFIED AIRBORNE COPCS AT THE SITE PERIMETER ...... E-2 3.1 Identified Airborne COPCs...... E-2 3.2 Development of Airborne Action Levels for Airborne COPCs ...... E-2 3.2.1 BAAQMD Regulations ...... E-3 3.2.2 Minimal Risk Levels ...... E-3 3.2.3 Calculated Risk-Based Airborne Action Levels ...... E-4 3.2.4 Selected Airborne Action Levels for Airborne COPCs ...... E-7

4.0 EVALUATION OF DUST CONTROL MEASURES ON PERIMETER AIR CONCENTRATIONS OF AIRBORNE COPCS ...... E-8 4.1 Maximum Hypothetical Concentrations of Airborne COPCs in PM10 Dust E-8 4.2 Development of Airborne Action Level for Total Dust ...... E-8

5.0 APPLICATION OF AIRBORNE ACTION LEVELS FOR DUST AND AIRBORNE COPCS ...... E-9

6.0 PERIMETER AIR SAMPLING PLAN ...... E-9 6.1 Meteorological Measurements ...... E-10 6.2 Perimeter Air Monitoring Station Locations ...... E-10 6.3 Air Monitoring Parameters and Sampling Frequency ...... E-11 6.4 Air Sample Collection and Analytical Methods ...... E-11 6.4.1 Total Dust (Direct-Read Measurements) ...... E-12 6.4.2 Total Dust, Respirable Dust (PM10), and Airborne COPCs (Laboratory Analysis) ...... E-12 6.5 Quality Assurance and Quality Control (“QA/QC”) Procedures ...... E-13 6.5.1 Field QA/QC Procedures ...... E-13 6.5.2 Laboratory QA/QC Procedures ...... E-14

7.0 REFERENCES ...... E-14

EKI A90007.00 E-i Appendix E

APPENDIX E

PERIMETER AIR MONITORING PLAN Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

TABLES

E-1 BAAQMD Regulatory Levels and Minimal Risk Levels for Airborne COPCs E-2 Human Health Exposure Assumptions for Calculated Risk-Based Airborne Action Levels E-3 Calculated Non-Carcinogenic Risk-Based Airborne Action Levels E-4 Calculated Carcinogenic Risk-Based Airborne Action Levels E-5 Selected Airborne Action Levels for Airborne COPCs and Dust E-6 Calculated Maximum Hypothetical Dust Concentrations Based on Measured Concentrations of Airborne COPCs in Soil Samples E-7 Summary of Perimeter Air Sampling Equipment, Analytical Methods, and Sampling Frequencies

FIGURES

E-1 Site Map E-2 Proposed Excavation Areas and Perimeter Air Monitoring Station Locations

EKI A90007.00 E-ii Appendix E

1.0 INTRODUCTION

This Perimeter Air Monitoring Plan (“AMP”) has been prepared by Erler & Kalinowski, Inc. (“EKI”) on behalf of our client, the City of Emeryville Redevelopment Agency (“Agency”), to describe the perimeter air action levels and perimeter air monitoring procedures and protocols that will be used during implementation of the Site Cleanup Plan (“SCP”) (EKI, 2010) for the Horton Landing Park property (the “Site”) in Emeryville, California (Figure E-1). The selected cleanup alternative in the SCP entails limited excavation and off-Site disposal of impacted shallow soils and transportation of those soils to a permitted off-Site disposal facility. The Agency will select a Contractor to implement the SCP.

The AMP will be implemented by EKI or an EKI subcontractor (“Client Representative”) for the Agency during the excavation conducted at the Site by the selected Contractor. This AMP and other emission control measures described in the Dust Control Plan (Appendix D of the SCP) were developed to protect the surrounding community from exposure to airborne chemicals of potential concern (“COPCs”) and dust and to evaluate the adequacy of dust and emission control methods being applied by the Contractor during active excavation.

2.0 DEVELOPMENT OF AIRBORNE ACTION LEVEL FOR PM10 DUST AT THE SITE PERIMETER

The California Ambient Air Quality Standard for PM10 dust (i.e., airborne particulate matter with effective fifty-percent cut point particle diameters of less than or equal to 10 microns) is 0.05 milligrams per cubic meter (“mg/m3”), measured as a 24-hour time weighted average (“TWA”; California Code of Regulations (“CCR”), Title 17, Section 70200). Average PM10 concentrations up to 0.11 mg/m3 for an 8-hour shift would likely result in the achievement of 0.05 mg/m3 24-hour TWA standard at the Site perimeter, accounting for the annual background average PM10 concentration of 0.0209 mg/m3 measured at the Bay Area Air Quality Management District’s (“BAAQMD”) San Pablo monitoring station (BAAQMD, 1999b and 2008). The calculated value of 0.11 mg/m3 for an 8 hour work shift (see Equation 1) assumes that the PM10 concentration is 0.0209 mg/m3 for the remaining 16 hours in the day, resulting in a calculated hypothetical 24-hour TWA PM10 concentration of 0.05 mg/m3. Therefore, the selected 8-hour TWA airborne Action Level for PM10 dust is 0.11 mg/m3.

Equation [1] Calculation of 8-hour TWA PM10 for an 8-hour Shift 24× PM10 −16× PM10 PM10 = 24−hourTWA background 8−hour−TWA 8

where:

3 PM108-hour -TWA = 8-hour TWA PM10 for an 8-hour shift [mg/m ]; 3 PM1024-hour TWA = 24-hour TWA PM10 [0.05 mg/m ]; and

EKI A90007.00 E-1 Appendix E

3 PM10background = Background PM10 [0.0209 mg/m ].

3.0 DEVELOPMENT OF AIRBORNE ACTION LEVELS FOR IDENTIFIED AIRBORNE COPCS AT THE SITE PERIMETER

3.1 Identified Airborne COPCs

Site-specific COPCs in soil at the Site include arsenic, lead, Aroclor 1260, dieldrin, and total petroleum hydrocarbons (“TPH”). During soil excavation and handling, these COPCs in soil may be present in dust particles released to the air.

TPH is a complex mixture of chemicals. Specific compounds associated with TPH such as naphthalene, other polyaromatic hydrocarbons, benzene, toluene, and other volatile organic compounds, for which specific human health toxicity criteria are available, were not identified as Site-specific COPCs in soil. It is assumed that protecting potentially exposed populations from exposure to other COPCs in soil such as arsenic will also be adequate for protecting potentially exposed populations from exposure to TPH during Site cleanup activities because TPH is generally less toxic than the other identified COPCs in soil.

Therefore, identified airborne COPCs at the Site include arsenic, lead, Aroclor 1260, and dieldrin. This AMP will develop airborne Action Levels for these identified airborne COPCs.

3.2 Development of Airborne Action Levels for Airborne COPCs

The hierarchy used to select and develop airborne Action Levels for airborne COPCs is as follows:

1. Bay Area Air Quality Management District (“BAAQMD”) Regulation: BAAQMD regulations for ambient air are promulgated regulations and were the adopted as the airborne Action Levels, if available for airborne COPCs.

2. Minimum Risk Level: If a BAAQMD Regulation is not available for an airborne COPC, the United States Public Health Service, Agency for Toxic Substances and Disease Registry (“ATSDR”) inhalation intermediate Minimum Risk Level (“MRL”) was selected as the airborne Action Level, if available for an airborne COPC.

3. Calculated Risk-Based Airborne Action Levels for Airborne COPCs: If a BAAQMD Regulation and inhalation MRL are not available for an airborne COPC, the more stringent of the calculated risk-based airborne Action Levels for potentially exposed populations, using U.S. Environmental Protection Agency (“U.S. EPA”) guidance (U.S. EPA, 2009) as described in Section 3.2.3, was selected as the airborne Action Level for the airborne COPC.

EKI A90007.00 E-2 Appendix E

These Action Levels assume direct inhalation and are conservative for potentially significant off-Site exposures because they do not take into account the potential for dilution from diffusion of chemicals in air between the Site perimeter and off-Site receptors. Federal and state workplace standards are not directly applicable to potential off-Site community exposures to airborne COPCs beyond the Site perimeter during Site excavation activities.

The BAAQMD Regulatory Levels for airborne COPCs are summarized in Table E-1. As shown in Table E-1, inhalation MRLs have not been established for the identified airborne COPCs.

3.2.1 BAAQMD Regulations

A BAAQMD regulation is available that addresses the presence of lead in ambient air. BAAQMD regulations for arsenic, Aroclor 1260, or dieldrin in ambient air are not available.

The BAAQMD lead regulation is discussed below. As this is a promulgated regulation, it will, therefore, be adopted as the Action Level for lead in ambient air during Site excavation activities.

BAAQMD Regulation 11 - Rule 1 states that lead shall not be released in quantities that result in a ground level lead concentration in excess of 0.001 milligrams per cubic meter (“mg/m3”) averaged over 24 hours (BAAQMD, 1982. Bay Area Air Quality Management District Rules and Regulations, Regulation 11, Hazardous Pollutants – Rule 1, Lead, 17 March 1982.

3.2.2 Minimal Risk Levels

Minimal risk levels (“MRLs”) for airborne toxicants are guidance values developed by the ATSDR, as mandated by the Comprehensive Environmental Response, Compensation, and Liability Act (“CERCLA”). ATSDR states the following: “An MRL is an estimate of the daily human exposure to a hazardous substance that is likely to be without appreciable risk of adverse non-cancer health effects over a specified duration of exposure.” MRLs are set below levels that, based on current information, might cause adverse health effects in the people most sensitive to such substance-induced effects (ATSDR, 2009). MRLs have generally been derived for the following exposure durations:

• Acute (1 to 14 days) • Intermediate (15 to 364 days) • Chronic (365 days or longer)

The expected duration of Site cleanup activities, which includes active excavation and off-haul of impacted soil, is approximately 2 weeks. Considering the project duration, acute or intermediate MRLs are the most appropriate MRLs to assess potential exposure

EKI A90007.00 E-3 Appendix E

to airborne COPCs during the project. Nevertheless, no inhalation MRLs have been developed for the airborne COPCs at the Site.

3.2.3 Calculated Risk-Based Airborne Action Levels

For airborne COPCs that do not have BAAQMD-regulatory levels or inhalation MRLs, risk-based airborne Action Levels for airborne COPCs were developed using U.S. EPA guidance (U.S. EPA, 2009), reference exposure levels (“RELs”) or reference concentrations (“RfCs”), and inhalation unit risk (“IUR”) values published as guidelines primarily by the California Environmental Protection Agency, Office of Environmental Health Hazard Assessment (“OEHHA”) (Cal-EPA, 2008; 2009).

3.2.3.1 Potentially Exposed Populations

In terms of assessing risk, the U.S. EPA defines “exposure” as the contact of a human with a chemical (U.S. EPA, 1989). In order to assess exposure, each group of people that could potentially be exposed to chemicals (the “potentially exposed populations”) must be defined. For the purposes of this AMP, only off-Site populations will be considered1 because access to work zones will only be allowed in accordance with project-specific health and safety plans. Therefore, two hypothetical receptor populations exist near the Site, as follows:

1. Off-Site Commercial/Industrial Workers: The Off-Site Commercial/Industrial Worker population includes hypothetical office and warehouse workers on the properties surrounding the Site. For the purposes of this AMP, Off-Site Commercial/Industrial Workers are assumed to work primarily outdoors. It is expected that off-Site exposure levels to airborne contaminants from the Site would be lower for indoor workers.

2. Off-Site Residents: The Off-Site Residents population includes people who live in the residential areas near the Site. It is conservatively assumed that Off-Site Residents would be at their nearby residence each day for the entire day.

The only complete exposure pathway considered in this AMP is inhalation of airborne COPCs.

3.2.3.2 Exposure Parameters

A list of the assumed exposure parameters for the hypothetical potentially exposed populations is provided in Table E-2. Exposure parameters were selected based on available Cal-EPA and U.S. EPA guidance or on professional judgment regarding project-specific parameters, as indicated in Table E-2.

1 It is assumed that the on-Site worker population will be adequately protected against potential exposure to airborne COPCs using engineering controls and personal protective equipment (“PPE”) in accordance with project-specific health and safety plans.

EKI A90007.00 E-4 Appendix E

• Exposure Frequency: The assumed exposure frequency (“EF”) for the hypothetical Off-Site Commercial/Industrial Worker and Off-Site Resident is 10 days/year (i.e., 2 weeks, 5 days per week). This is based on a conservative assumption of the duration of Site cleanup activities.

• Exposure Time: For the inhalation exposure pathway, a key parameter is the assumed exposure time (“ET”), expressed as hours per day (“hrs/day”). The ET indicates the amount of time a member of the hypothetical population may spend each day in an area where airborne COPCs occur in ambient air. For both the hypothetical Off-Site Receptor and Off-Site Commercial/Industrial Worker the exposure time is assumed to be 8 hrs/day during the length of the work for the Site cleanup (i.e., 2 weeks).

• Averaging Time and Exposure Duration: For estimating the chronic daily intake for non-carcinogenic adverse health effects, as well as for estimating cancer risk, the averaging time (“AT”) is assumed to be equal to the exposure duration (“ED”) in units of days. For all potentially exposed populations, the exposure duration is one year. For estimating cancer risk, averaging time for all hypothetical populations is assumed to be a lifetime of 70 years (U.S. EPA, 1989).

3.2.3.3 Calculation of Non-Carcinogenic Risk-Based Airborne Action Levels

For the airborne COPCs with non-carcinogenic health effects that do not have BAAQMD-regulatory levels or applicable inhalation intermediate MRLs, non- carcinogenic risk-based airborne Action Levels were calculated using Equation [2] below (U.S. EPA, 2009) and a Hazard Index (“HI”) of one (1) (Table E-3). The HI is the non- carcinogenic hazard of an individual airborne COPC through a particular exposure pathway, and a total HI less than or equal to one (1) represents an exposure that is unlikely to cause adverse non-cancer health effects, even for sensitive populations (U.S. EPA, 1989). In Equation [2], “respirable chemical” is the amount of non-volatile chemical associated with the PM10 fraction of airborne dust:

Equation [2] Respirable Dust Action Level for Non-Carcinogenic Airborne COPCs (U.S. EPA, 2009) HI × AT × ()RELor RfC AL = ⎛ 1day ⎞ EF × ED × ET × ⎜ ⎟ ⎝ 24hours ⎠

where:

AL = Action Level – respirable chemical concentration in Site ambient air that is unlikely to cause adverse non-cancer health effects [mg/m3]; HI = Hazard Index – target non-carcinogenic hazard of 1 [dimensionless];

EKI A90007.00 E-5 Appendix E

AT = Averaging time (ED * 365 days/yr; U.S. EPA, 1991; Cal- EPA, 1996) [days]; REL or RfC = Reference exposure level or reference concentration [ug/m3]; EF = Assumed exposure frequency [days/yr]; ED = Assumed exposure duration [yr]; and ET = Exposure time [hrs/day].

The “REL or RfC” parameter in Equation [2] was calculated for each airborne COPC with non-carcinogenic health effects using the following parameters and hierarchy (Table E-3).

1. Reference Exposure Level (“REL”): RELs for airborne toxicants can be used as indicators of concentrations at which potential chronic and acute adverse health effects may occur (Cal-EPA, 2000). Acute and chronic RELs are concentration levels at which no adverse health effects are anticipated for given short-term (i.e., 1 to 7 hours) and long-term (i.e., greater than 8 years) exposure periods, respectively. RELs are based on the most sensitive adverse health effect reported in the medical and toxicological literature (Cal-EPA, 2000). The Cal-EPA REL documents include summaries of the supporting human and laboratory animal studies and other background information used by Cal-EPA to derive the RELs. As indicated previously, the expected duration of Site cleanup activities, including active excavation and off-haul of impacted soil, is approximately 2 weeks, which is consistent with a subchronic or intermediate exposure period. Since acute (i.e., 1 to 7 hours), 8 hour, or chronic RELs are not directly applicable to the Site, the chronic RELs were used, where available, because they are more conservative. The actual length of remedial construction activities at the Site acts to adjust the chronic RELs for a subchronic exposure (Table E-3). The REL, if available for an airborne COPC, was the primary source for calculation of the Action Levels.

2. Reference Concentration (“RfC”): Where chronic RELs were not available for airborne COPCs, RfCs were used if available (Table E-3). RfCs are similar to RELs, are developed by the U.S. EPA, and are presented in the Integrated Risk Information System (“IRIS,” U.S. EPA, 2010). The assumptions used in developing the RfCs are similar to those discussed above for the RELs.

Table E-3 presents the available RELs or RfCs for airborne COPCs with non- carcinogenic health effects.

3.2.3.4 Calculation of Carcinogenic Risk-Based Airborne Action Levels

For airborne COPCs with carcinogenic health effects that do not have BAAQMD regulatory levels or applicable inhalation intermediate MRLs, carcinogenic risk-based airborne Action Levels were calculated for the potentially exposed populations defined above using Equation [3] below (U.S. EPA, 2009) and an incremental cancer risks of one in one million (10-6) (Table E-4). An incremental cancer risks of one in one million

EKI A90007.00 E-6 Appendix E

(10-6) is the lower bound of the incremental cancer risk range of one in one million (10-6) to one in ten thousand (10-4) that the U.S. EPA defines as “safe and protective” of human health (U.S. EPA 1991b). In Equation [3], “respirable chemical” is the amount of non- volatile chemical associated with the PM10 fraction of airborne dust:

Equation [3] Respirable Dust Action Level for Carcinogenic Airborne COPCs (U.S. EPA, 2009) CR × AT AL = ⎛ 1day ⎞ EF × ED × ET × IUR × ⎜ ⎟ ⎝ 24hours ⎠

where:

AL = Action Level – respirable chemical concentration in Site ambient air that corresponds to incremental cancer risk of 10-6 [mg/m3]; CR = Target lifetime incremental cancer risk of 10-6 [dimensionless]; AT = Averaging Time (70 yr * 365 days/yr; U.S. EPA, 1991; Cal-EPA, 1996) [days]; EF = Assumed exposure frequency [days/yr]; ED = Assumed exposure duration [yr]; ET = Exposure time [hrs/day]; and IUR = Inhalation unit risk [(ug/m3)-1].

Inhalation unit risk (“IUR”) in Equation [3] is the upper-bound excess lifetime cancer risk estimated to result from continuous exposure to a chemical at the concentration of 1 ug/m3 in air.. Chemicals having a higher IUR are believed to have inherently more carcinogenic potency than those with a lower IUR. As indicated previously, the expected duration of Site cleanup activities, including active excavation and off-haul of impacted soil, is approximately 2 weeks, which is consistent with a subchronic or intermediate exposure period. Since inhalation unit risk is representative of chronic exposure, the actual length of remedial construction activities at the Site acts to adjust the inhalation unit risk for a subchronic exposure. Table E-4 presents the available IURs for airborne COPCs with carcinogenic health effects.

3.2.4 Selected Airborne Action Levels for Airborne COPCs

Selected airborne Action Levels for each airborne COPC at the Site perimeter are summarized on Table E-5.

EKI A90007.00 E-7 Appendix E

4.0 EVALUATION OF DUST CONTROL MEASURES ON PERIMETER AIR CONCENTRATIONS OF AIRBORNE COPCS

4.1 Maximum Hypothetical Concentrations of Airborne COPCs in PM10 Dust

Maximum hypothetical concentrations of airborne COPCs in dust were calculated using Equation [4] to evaluate whether the 8-hour TWA airborne Action Level for PM10 dust of 0.11 mg/m3 would also be protective of off-Site populations for airborne COPCs (Table E-6).

Equation [4] Respirable Dust Action Level for Identified Airborne COPCs (U.S. EPA, 1991) AL D = −6 COCmax ×10 kg / mg

where:

D = maximum hypothetical concentration of airborne COPC in PM10 dust [mg/m3];

AL = selected airborne Action Level [mg/m3] (see Table E-5); and

COPCmax = maximum detected airborne COPC concentration in soil samples from the Site [mg/kg].

The calculated maximum hypothetical 8-hour TWA concentrations of airborne COPCs in PM10 dust indicate that maintaining PM10 dust concentrations below the 8-hour TWA airborne Action Level for PM10 dust will also control airborne COPC concentrations in air below the airborne Action Levels for airborne COPCs.

4.2 Development of Airborne Action Level for Total Dust

During Site cleanup, real-time perimeter air monitoring will be conducted for total dust (defined as airborne particulate matter with effective fifty-percent cut point particle diameters of less than or equal to 100 microns). Since dust particles larger than 10 microns are likely to be associated with excavation activities, the comparison of real-time perimeter air monitoring data for total dust to the airborne Action Levels developed for PM10 dust should be conservative. Concentrations of total dust in air that meet the airborne Action Level for PM10 dust would demonstrate that the concentrations of airborne COPCs in air do not exceed their respective airborne Action Levels. Therefore, the airborne Action Level for PM10 dust of 0.11 mg/m3 is also adopted as the airborne Action Level for total dust (Table E-5).

To account for short-term variations in dust emissions, an equivalent 5-minute TWA of approximately 1 mg/m3, which corresponds to the presence of visible dust, is recommended as the airborne Action Level for temporarily stopping work to re-assess

EKI A90007.00 E-8 Appendix E

Site activities and dust suppression efforts. As shown in Table E-6, the 1 mg/m3 5-minute TWA airborne Action Level for total dust would not result in an exceedance of the airborne Action Level for arsenic, lead, Aroclor 1260, or dieldrin. Therefore, a 1 mg/m3 5-minute TWA airborne Action Level for total dust to temporarily stop work will be used to protect off-Site populations based on the maximum hypothetical airborne COPC occurrence in dust (Table E-5).

5.0 APPLICATION OF AIRBORNE ACTION LEVELS FOR DUST AND AIRBORNE COPCS

Below is a summary of the measures to be taken if the Action Levels for dust or airborne COPCs are exceeded during Site cleanup.

Dust

• 0.11 mg/m3 5-minute TWA airborne Target Level for total dust exceeded (as recorded by DataRAMs): increase dust suppression efforts

• 1 mg/m3 5-minute TWA airborne Action Level for total dust, corresponding to the presence of visible dust, exceeded (as recorded by DataRAMs): temporarily stop work and re-assess Site activities and dust control measures

• 0.11 mg/m3 8-hour TWA airborne Action Level for total dust exceeded (as recorded by DataRAMs and reported by the analytical laboratory): Contractor will temporarily stop work and re-assess Site activities and dust control measures.

• 0.11 mg/m3 8-hour TWA airborne Action Level for PM10 exceeded (as reported by the analytical laboratory): Contractor will temporarily stop work and re-assess Site activities and dust control measures.

Airborne COPCs

• Air sampling for airborne COPCs will be conducted the first two days of Site cleanup activities at the Site. Air samples will be submitted to the laboratory at the end of the workday and analyzed with results reported within 24 to 48 hours to verify that airborne Action Levels for airborne COPCs are not exceeded. If airborne Action Levels are exceeded, the following measures will be taken: (1) temporarily stop work and re-assess Site activities and dust control measures and (2) remobilize air samplers to the Site and continue air monitoring for airborne COPCs until airborne concentrations are maintained below the Action Levels for two consecutive days.

6.0 PERIMETER AIR SAMPLING PLAN

This section outlines air sampling protocols for airborne COPCs, PM10, and total dust at the work site perimeter. This section also describes the collection of on-Site meteorological measurements.

EKI A90007.00 E-9 Appendix E

6.1 Meteorological Measurements

During excavation activities at the Site, a meteorological station will be maintained on- Site at a location that is free from air flow obstructions and is considered generally representative of the wind patterns present at the Site (Figure E-2). The meteorological station will be set up at the Site one week prior to the initiation of excavation activities in order to evaluate Site-specific wind patterns for use in positioning the monitors around the work Site. Wind speed, wind direction, and relative humidity measurements will be collected continuously at the Site during soil excavation and soil loading activities. Wind socks will be placed at several locations around the Site. If the on-Site wind data indicate that a significant shift in wind direction is observed, the perimeter air monitoring stations will be re-evaluated and repositioned, if considered appropriate, and as soon as reasonably possible given the sampling equipment then in use.

The wind speed and wind direction data will be collected using an anemometer and wind vane equipped with a data logger to record data at a minimum of 15-minute intervals. The data logger will calculate average wind speed and direction for the Site. The anemometer and wind vane will be mounted at least 20 feet away from, and 4 feet above, any structures or other obstructions that could affect ambient air flow patterns. A WeatherHawk™ (or other similar model) will be used.

In addition to providing a record of wind speed and direction during the remedial excavation activities for use in evaluating perimeter air monitoring data, these meteorological data will be available to aid implementation of the Dust Control Plan in the SCP (EKI, 2010). BAAQMD guidance (BAAQMD, 1999) recommends suspension of excavation activity when winds (instantaneous gusts) exceed 25 miles per hour (“mph”). In addition, based on previous field experience, it is difficult to implement effective dust suppression techniques with sustained wind speeds greater than 20 mph. Thus, in accordance with the Dust Control Plan, when the wind speed at the Site exceeds 20 mph (sustained for 15 minutes), soil excavation and loading work by the Contractor will be stopped until the wind speed drops below 20 mph (see Appendix D of the SCP).

6.2 Perimeter Air Monitoring Station Locations

The purposes of the perimeter air monitoring stations are to collect ambient air data at the Site perimeter to evaluate the effectiveness of the Contractor’s emission controls and to assess off-Site migration of airborne COPCs and dust to locations where off-Site human exposures could occur. A total of three perimeter air monitoring stations will be distributed around the Site perimeter. The assumed initial locations of perimeter air monitoring stations are shown on Figure E-2, which assumes a prevailing wind from the west.

One perimeter air monitoring station will be located along the Site perimeter at a location that is generally upwind or crosswind to the prevailing wind direction (i.e., west of the active excavation area). As shown on Figure E-2, two perimeter air monitoring stations will be located at the Site between Site cleanup activities and the nearest presumed

EKI A90007.00 E-10 Appendix E

locations of potential off-Site exposure (i.e., at the eastern boundary of the Site). These locations are expected to be generally downwind of the work area (BAAQMD, 1999c). The actual locations and placement of the perimeter monitoring stations will depend on the actual observed wind direction and areas of work, which will be evaluated daily as noted above.

6.3 Air Monitoring Parameters and Sampling Frequency

Air monitoring parameters and sampling frequencies are described below and summarized in Table E-7.

Field Measurements

• Total Dust (direct-reading aerosol monitoring, “DataRAM”)

Samples for Laboratory Analysis

• Total Dust; • PM10 dust; • Airborne COPCs - arsenic, lead, Aroclor 1260, and dieldrin.

Samples for laboratory analysis (i.e., airborne COPCs, total dust, and PM10 dust) will be collected during the first two days of Site cleanup activities. During the first two days of the cleanup activities, all samples collected will be submitted to the laboratory at the end of the workday and analyzed with results reported within 24 to 48 hours. Sampling for total dust will continue throughout the remainder of the cleanup project using DataRAMs.

Air sample collection and laboratory analysis for airborne COPCs, total dust, and PM10 dust will be discontinued following the initial two days of comprehensive air sampling if analytical results show that airborne Action Levels are not being exceeded (i.e., the Contractor’s dust suppression efforts are sufficient to protect off-Site populations). As discussed in Section 4.2, the use of the PM10 Action Level as the total dust Action Level is protective of potential exposure to airborne COPCs and PM10 dust.

6.4 Air Sample Collection and Analytical Methods

The planned air sample collection and analytical methods are presented in Table E-7 and discussed further below. The information in Table E-7 includes sampling equipment, filter media, anticipated sampler flow-rate, duration of the planned sampling event, analytical method, and typical analytical reporting limits for each airborne COPC. Air samples will be analyzed by an American Industrial Hygiene Association (“AIHA”)- accredited laboratory. Field quality control and quality assurance (“QA/QC”) measures for field instrument calibration and sample handling and transport are also discussed below. Chain-of-custody procedures are discussed in the Soil Sampling and Analysis Plan (“SAP”) for the Site (see Appendix G of the SCP).

EKI A90007.00 E-11 Appendix E

All of the inlets of the air sampling equipment will be positioned at a height of approximately 5 feet to approximate the height of the human breathing zone.

6.4.1 Total Dust (Direct-Read Measurements)

Throughout the cleanup activities at the Site, data logging aerosol monitors or personal data direct-reading aerosol monitors (collectively, “DataRAMs”) will be used to provide immediate information regarding total dust concentrations present at each of the perimeter air monitoring station locations. These data will provide real-time information that will be used to evaluate the effectiveness of dust control procedures being implemented by the Agency’s remedial Contractor. In addition, the total dust measurements provide data that can be used to aid field decisions during the lag time between chemical-specific sampling events and the receipt of the off-Site laboratory’s analytical results; the latter will be used to evaluate compliance with airborne Action Levels for specific COPCs.

The DataRAMs will be affixed approximately 5-feet off the ground to capture air at the average persons breathing height at air monitoring stations located along but within the fenced off Site perimeter. The DataRAMs will be pre-programmed to collect airborne Total Dust data at 1-minute intervals and will be checked approximately every hour during the work shift to verify operation and compliance with the airborne Action Level for total dust of 0.11 mg/m3 for an 8-hour shift (Table E-5). The data stored in the DataRAMs’ memory will be downloaded at the end of each work day. The monitors will be factory calibrated and operated in accordance with the manufacturer’s instructions.

The effectiveness of DataRAMs is limited by weather conditions. The use of DataRAMs will be suspended when the weather conditions are such that the DataRAMs are deemed ineffective, based on professional judgment.

6.4.2 Total Dust, Respirable Dust (PM10), and Airborne COPCs (Laboratory Analysis)

High volume (“High Vol”) ambient air samplers will be used to collect air samples for laboratory analysis. A Tisch Model 5170V (or alternate model capable of meeting airborne Action Levels for Airborne COPCs) will be used to collect air samples for laboratory analysis of total dust and metal Airborne COPCs (i.e., arsenic and lead). A Tisch Model 6070V (or alternate model capable) will be used to collect air samples for laboratory analysis of respirable dust (PM10), and a Tisch Model 1000 (or alternate model capable) will be used to collect air samples for laboratory analysis of Aroclor 1260 and dieldrin.

The High Vol samplers will be affixed approximately 5-feet off the ground to capture air at the average persons breathing height at air monitoring stations located along but within the fenced off Site perimeter. The High Vol samplers will be powered by electricity from the local electrical utility company, provided by the Client’s Contractor, or generators. The High Vol samplers will be checked hourly by the Client representative to assure functionality and will be recorded in the field logs. If Tisch Models 5170V and 6070V

EKI A90007.00 E-12 Appendix E

High Vol samplers are used, they will be operated at a flow rate between 40 and 45 cubic feet per minute (“cfm”) and will be calibrated in accordance with the manufacturer’s instructions. If Tisch Model 1000 High Vol sampler is used, it will be operated at a flow rate between 7 and 10 cfm and will be calibrated in accordance with the manufacturer’s instructions. If an alternative sampling method, as proposed by a certified industrial hygienist (“CIH”), is used, the CIH will operate and calibrate the flow rate such that the airborne Action Levels for airborne COPCs are met. Vacuum pressures and start/stop times will be recorded on the air monitoring field logs.

The total dust, PM10, and samples for arsenic and lead analysis will be collected using the High Vol samplers on pre-weighed 8-inch by 10-inch quartz fiber filters and samples for Aroclor 1260 and dieldrin analysis will be collected using the High Vol samplers with polyurethane foam (“PUF”) cartridges (Table E-7). These fiber filters and PUF cartridges will be shipped to the analytical laboratory under chain-of-custody procedures (see Appendix G of the SCP). Total dust and PM10 samples will be analyzed gravimetrically in accordance with the method described in 40 CFR Part 50, Appendix B. Metal COPCs will be analyzed using inductively coupled plasma/mass spectrometry (“ICP/MS”) (EPA Method 6020) with detection limits below airborne Action Levels shown in Table E-7. Aroclor 1260 and dieldrin will be analyzed by gas chromatography (EPA Method TO-4A) with detection limits below airborne Action Levels shown in Table E-7.

The usefulness of High Vol samplers is limited by weather conditions. The use of High Vol samplers will be suspended when the weather conditions are such that the High Vol samplers are deemed ineffective based on professional judgment.

6.5 Quality Assurance and Quality Control (“QA/QC”) Procedures

6.5.1 Field QA/QC Procedures

Field QA/QC measures for field instrument calibration and sample handling and transport were discussed above in Section 6.4. Chain-of-custody and sample labeling procedures are discussed in the SAP for the Site (see Appendix G of the SCP).

Field QA/QC samples will be collected during sampling to quantitatively measure and ensure the quality of the sampling container/filter media, sampling procedures, and the analytical data. Field QA/QC samples for ambient air monitoring include equipment blanks and field duplicates. Equipment blank results are used to assess the potential introduction of contaminants from sampling containers/filter media. Field duplicates are a second sample collected at the same time as the original sample using identical sampling techniques and are used to assess the precision of the sample collection process and the field QA/QC sampling protocols and frequencies. One equipment blank of the quartz fiber filter will be submitted for the analysis of arsenic and lead using EPA Method 6020 and one equipment blank of the PUF cartridge will be submitted for Aroclor 1260 and dieldrin analysis the first two days of air sampling. Field duplicates

EKI A90007.00 E-13 Appendix E

will be collected from one sampling location during the first two days of air sampling and submitted for the same analyses as the original sample.

6.5.2 Laboratory QA/QC Procedures

The Quality Assurance Project Plan (“QAPP”) for the Site (see Appendix H of the SCP) provides details on analytical laboratory QA/QC procedures that include quality control checks such as laboratory blanks, spikes, and spike duplicates that will be performed by adherence to laboratory QC procedures and the analysis of laboratory QC samples. Analytical laboratory QA/QC parameters will be assessed according to procedures outlined in the QAPP Plan.

7.0 REFERENCES

ATSDR, 2009. Agency for Toxic Substances and Disease Registry, Division of Toxicology, Minimal Risk Levels (MRLs) for Hazardous Substances Narrative, http://www.atsdr.cdc.gov/mrls/index.html, December 2009.

BAAQMD, 1982. Bay Area Air Quality Management District Rules and Regulations, Regulation 11, Hazardous Pollutants – Rule 1, Lead, 17 March 1982.

BAAQMD, 2008. Bay Area Air Pollution Summary – 2008, Bay Area Air Quality Management District, available at: http://www.baaqmd.gov/~/media/Files/Communications%20and%20Outreach/Annua l%20Bay%20Area%20Air%20Quality%20Summaries/pollsum08.ashx

Cal-EPA, 1994. Preliminary Endangerment Assessment Guidance Manual, California Environmental Protection Agency, Department of Toxic Substances Control, January 1994.

Cal-EPA, 1996. Cal-EPA, Supplemental Guidance for Human Health Multimedia Risk Assessments of Hazardous Waste Sites and Permitted Facilities, California Department of Toxic Substances Control, Published in 1992, reprinted in 1996.

Cal-EPA, 1999. Cal-EPA, Office of Environmental Health Hazard Assessment, Technical Support Document for the Determination of Acute Reference Exposure Levels for Airborne Toxicants, tables updated March 1999 and updated in May 2000.

Cal-EPA, 2000. Technical Support Document for the Determination of Noncancer Chronic Reference Exposure Levels, California Environmental Protection Agency, Department of Toxic Substances Control, February 2000.

Cal-EPA, 2005a. Use of California Human Health Screening Levels (CHHSLs) in Evaluation of Contaminated Properties, California Environmental Protection Agency, Department of Toxic Substances Control, January 2005.

EKI A90007.00 E-14 Appendix E

Cal-EPA, 2005b. Human Health Risk Assessment (HHRA) Note Number 1, California Environmental Protection Agency, Department of Toxic Substances Control, October 2005.

Cal-EPA, 2008. All OEHHA Acute, 8-hour and Chronic Reference Exposure Levels Table, California Environmental Protection Agency, Office of Environmental Health Hazard Assessment, (http://www.oehha.ca.gov/air/allrels.html), updated 18 December 2008.

Cal-EPA, 2009. Toxicity Criteria Database, California Environmental Protection Agency, Office of Environmental Health Hazard Assessment, (http://www.oehha.ca.gov/risk/ChemicalDB/index.asp), updated 21 July 2009.

EKI, 2010. Site Cleanup Plan, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., March 2010.

U.S. EPA, 1989. Risk Assessment Guidance for Superfund, Volume 1 – Human Health Evaluation Manual (Part A), OERR, EPA/540/1-89/002, December 1989.

U.S. EPA, 1991. Risk Assessment Guidance for Superfund-Vol. 1: Human Health Evaluation Manual, Supplemental Guidance, Standard Default Exposure Factors, Interim Final, OSWER Directive 9285.6-03, March 1991.

U.S. EPA, 2009. Regional Screening Table, U.S. Environmental Protection Agency, December 2009.

U.S. EPA, 2010. Integrated Risk Information System (IRIS), U.S. Environmental Protection Agency, Washington, D.C., (http://www.epa.gov/iris).

EKI A90007.00 E-15 Appendix E

TABLE E-1 BAAQMD Regulatory Levels and Minimal Risk Levels for Airborne COPCs Horton Landing Park Emeryville, California

Inhalation Minimal Risk Levels (a) BAAQMD 3 Airborne COPCs Regulatory Level (mg/m ) 3 (mg/m ) Acute Intermediate Chronic Selected MRL Metals Arsenic------Lead 0.001 (24-hr TWA) ------PCBs Aroclor 1260------Organochloride Pesticides Dieldrin------

Abbreviations: "--" = not available mg/m3 = milligrams per cubic meter BAAQMD = Bay Area Air Quality Management District MRL = Minimal Risk Level COPCs = chemicals of potential concern PCBs = polychlorinated biphenyls hr = hour TWA = time weighted average

Notes: (a) Inhalation MRLs were obtained from the Agency for Toxic Substances and Disease Registry's ("ATSDR," 2009)

References: (1) ASTDR, 2009. Minimal Risk Levels for Hazardous Substances, Agency for Toxic Substances and Disease Registry, Division of Technology, December 2009. (2) BAAQMD, 1982. Multimedia Risk Assessments of Hazardous Waste Sites and Permitted Facilities, Regulation 11-Rule 1 , Bay Area Air Quality Management District Rules and Regulations.

Erler & Kalinowski, Inc. EKI A90007.00 Page 1 of 1 March 2010 TABLE E-2 Human Health Exposure Assumptions for Calculated Risk-Based Airborne Action Levels Horton Landing Park Emeryville, California

Parameter Value Units Reference Exposure Duration (ED) Off-Site Receptor (a) 1 year Professional Judgment Off-Site Commercial/Industrial Worker 1 year Professional Judgment Exposure Frequency (EF) Professional Judgment (= 5 days per week for 2 weeks, based on conservative Off-Site Receptor 10 days/year estimate of construction duration) Professional Judgment (= 5 days per week for 2 weeks, based on conservative Off-Site Commercial/Industrial Worker 10 days/year estimate of construction duration) Exposure Time (ET) Off-Site Receptor 8 hours/day Based on an 8 hour work day Off-Site Commercial/Industrial Worker 8 hours/day Based on an 8 hour work day Averaging Time (AT) Non-Carcinogens Off-Site Receptor 365 days = Exposure Duration (U.S. EPA, 1991a; Cal-EPA, 1996, 2005) Off-Site Commercial/Industrial Worker 365 days = Exposure Duration (U.S. EPA, 1991a; Cal-EPA, 1996, 2005) Carcinogens All Populations (70 years) 25,550 days U.S. EPA, 1989; Cal-EPA, 1996, 2005 Target Risk (TR) CR - Carcinogens 1 E-06 unitless U.S. EPA, 1991b HI - Non-Carcinogens (b) 1 unitless U.S. EPA, 1989

Abbreviations: Cal-EPA = California Environmental Protection Agency HI = Hazard Index – target non-carcinogenic hazard CR = Target lifetime incremental cancer risk U.S. EPA = United States Environmental Protection Agency

Notes: (a) Refers to hypothetical resident who may live in the immediate vicinity of the Site. Exposure time for residents is based on the work day that remedial activities are planned to occur (i.e., an 8-hour work day). (b) The target hazard index (non-carcinogens) was established as unity (1). If multiple compounds have the same primary target organ, the target hazard index will be proportionally reduced to account for the number of compounds with the same target organ.

Erler & Kalinowski, Inc. EKI A90007.00 Page 1 of 2 March 2010 TABLE E-2 Human Health Exposure Assumptions for Calculated Risk-Based Airborne Action Levels Horton Landing Park Emeryville, California

References: (1) Cal-EPA, 1996. Supplemental Guidance for Human Health Multimedia Risk Assessments of Hazardous Waste Sites and Permitted Facilities, California Environmental Protection Agency, Department of Toxic Substances Control, Sacramento, California. (2) Cal-EPA, 2005. Human Health Risk Assessment (HHRA) Note Number 1 , California Environmental Protection Agency, Department of Toxic Substances Control, Sacramento, California, October 2005. (3) U.S. EPA, 1989. Risk Assessment Guidance for Superfund ("RAGS"), Volume 1, Human Health Evaluation Manual (Part A), EPA/540/1-89/002, U.S. Environmental Protection Agency, Office of Emergency and Remedial Response ("OERR"), December 1989. (4) U.S. EPA, 1991a. RAGS, Volume 1 - Human Health Evaluation Manual, Supplemental Guidance: Standard Default Exposure Factors, Interim Final, OSWER Directive 9285.6-03, U.S. Environmental Protection Agency, Office of Solid Waste and Emergency Response, March 1991. (5) U.S. EPA, 1991b. Role of the Baseline Risk Assessment in Superfund Remedy Selection Decisions , Memorandum from Don R. Clay, Assistant Administrator, Office of Solid Waste and Emergency Response, OSWER Directive No. 9355.0-30, 22 April 1991.

Erler & Kalinowski, Inc. EKI A90007.00 Page 2 of 2 March 2010 TABLE E-3 Calculated Non-Carcinogenic Risk-Based Airborne Action Levels Horton Landing Park Emeryville, California

Calculated Non-Carcinogenic Risk- Toxicity Value in Reference (a) Primary Based Airborne Action Level (d) Primary Target Target HI (c) Airborne COPCs Chronic REL Target Organ SourceOrgan (b) (unitless) Off-Site Resident Off-Site Worker or RfCs Source (ug/m3) (mg/m3) (mg/m3) Metals Development; cardiovascular Arsenic 0.015 OEHHA system; nervous system; lung; OEHHA 1 1.6E+00 1.6E+00 skin Lead (e) na na na na na na na

PCBs

Aroclor 1260 ------

Organochloride Pesticides

Dieldrin ------

Abbreviations: "--" = not available na = not applicable BAAQMD = Bay Area Air Quality Management District PCBs = polychlorinated biphenyls COPCs = chemicals of potential concern RfC = reference concentration HI = Hazard Index REL = reference exposure level mg/m3 = milligrams per cubic meter ug/m3 = micrograms per cubic meter Notes: (a) This table summarizes the calculation of non-carcinogenic risk-based airborne Action Levels for those airborne COPCs with non-carcinogenic health effects and for which BAAQMD regulatory levels and intermediate MRLs were not available. Toxicity values for airborne COPCs were obtained from the following sources, in the following order of preference: 1. California Environmental Protection Agency, Office of Environmental Health Hazard Assessment ("OEHHA") Table: "All OEHHA Acute, 8-hour and Chronic Reference Exposure Levels," (http://www.oehha.ca.gov/air/allrels.html). Chronic values were preferentially used over acute values where available since chronic values are more conservative. 2. U.S. Environmental Protection Agency Integrated Risk Information System ("IRIS"), 2009. (b) The target organs from acute exposure via the inhalation route are presented in the table, where available. In the absence of target organ information for acute inhalation exposure, chronic inhalation and oral target organ information were used in this order of preference. Target organ information obtained from OEHHA (Cal- EPA, 2008). Acute target organ information was preferred over chronic target organ information because the length of remedial construction activities at UPRR Parcel D (i.e., 2 weeks) is more similar to the OEHHA and Agency for Toxic Substances and Disease Registry ("ATSDR") acute time assumptions of 1 to 7 hours and up to 2 weeks, respectively, than the OEHHA and ATSDR chronic time assumptions of greater than 8 years and greater than 1 year, respectively. (c) See Table E-2. (d) Non-carcinogenic risk-based airborne Action Levels for airborne COPCs with non-carcinogenic health effects were calculated using Equation [2] of the Perimeter Air Monitoring Plan. (e) Calculated risk-based airborne Action Levels were not developed for lead because there is a BAAQMD regulatory level (Table E-1). References: (1) Cal-EPA, 2008. All OEHHA Acute, 8-hour and Chronic Reference Exposure Levels, California Environmental Protection Agency, Office of Environmental Health Hazard Assessment, updated 18 December 2008. (2) U.S. EPA, 2010. Integrated Risk Information System database, U.S. Environmental Protection Agency.

Erler & Kalinowski, Inc. EKI A90007.00 Page 1 of 1 March 2010 TABLE E-4 Calculated Carcinogenic Risk-Based Airborne Action Levels Horton Landing Park Emeryville, California

Toxicity Value in References Calculated Carcinogenic Risk-Based (a) Airborne Action Level (c) Weight of Evidence Airborne COPCs Inhalation Classification (b) Off-Site Resident Off-Site Worker Unit Risk Source (mg/m3) (mg/m3) (ug/m3)-1 Metals Arsenic 3.3E-03 OEHHA A 2.3E-03 2.3E-03 Lead (d) na na na na na PCBs Aroclor 1260 5.7E-04 OEHHA B2 1.3E-02 1.3E-02 Organochloride Pesticides Dieldrin 4.6E-03 OEHHA B2 1.7E-03 1.7E-03

Abbreviations: BAAQMD = Bay Area Air Quality Management District OEHHA = Office of Environmental Health Hazard Assessment COPCs = chemicals of potential concern PCBs = polychlorinated biphenyls mg/m3 = milligrams per cubic meter ug/m3 = micrograms per cubic meter na = not applicable Notes: (a) This table summarizes the calculation of carcinogenic risk-based airborne Action Levels for those airborne COPCs with carcinogenic health effects and for which BAAQMD regulatory levels and intermediate inhalation Minimal Risk Levels were not available. Toxicity values for airborne COPCs were obtained from the following sources, in the following order of preference: 1. California Environmental Protection Agency, Office of Environmental Health Hazard Assessment ("OEHHA"), Toxicity Criteria Database, updated 21 July 2009 (http://www.oehha.ca.gov/risk/ChemicalDB/index.asp). 2. U.S. EPA Integrated Risk Information System database ("IRIS"), 2010; (b) U.S. EPA weight-of-evidence classification is as follows: A = Human Carcinogen B1 or B2 = Probable Human Carcinogen; B1 indicates that limited human data are available; B2 indicates that there is sufficient evidence in animals and inadequate or no evidence in humans. C = Possible Human Carcinogen D = Not Classifiable as to Human Carcinogenicity E = Evidence of Non-Carcinogenicity for Humans Weight-of-evidence information was obtained from IRIS. (c) Carcinogenic risk-based airborne Action Levels for airborne COPCs with carcinogenic health effects were calculated using Equation [3] of the Perimeter Air Monitoring Plan. (d) Calculated risk-based airborne Action Levels were not developed for lead because there is a BAAQMD regulatory level (Table E-1). References: (1) Cal-EPA, 2009. Toxicity Criteria Database, California Environmental Protection Agency, Office of Environmental Health Hazard Assessment, updated 21 July 2009. (2) U.S. EPA, 2010. Integrated Risk Information System database, U.S. Environmental Protection Agency. Erler & Kalinowski, Inc. EKI A90007.00 Page 1 of 1 March 2010 TABLE E-5 Selected Airborne Action Levels for Airborne COPCs and Dust Horton Landing Park Emeryville, California

Calculated Non-Carcinogenic Risk- Calculated Carcinogenic Risk-Based BAAQMD Based Airborne Action Level Airborne Action Level Selected Airborne Airborne COPCs (Table E-3) (Table E-4) Action Level (a) and Dust Regulatory Level Selected MRL (Table E-1) (Table E-1) Off-Site Resident Off-Site Worker Off-Site Resident Off-Site Worker (mg/m3) (mg/m3) (mg/m3) (mg/m3) (mg/m3) (mg/m3) (mg/m3) Metals Arsenic -- -- 1.6E+00 1.6E+00 2.3E-03 2.3E-03 2.3E-03 Lead 1.0E-03 na na na na na 1.0E-03 PCBs Aroclor 1260 ------1.3E-02 1.3E-02 1.3E-02 Organochloride Pesticides Dieldrin ------1.7E-03 1.7E-03 1.7E-03 Dust 1.1E-01 (8-hour avg) Total Dust (b) ------1.0E+00 (5-minute avg) 1.1E-01 PM10 Dust (c) ------(8-hour avg)

Abbreviations: "--" = not available avg = average BAAQMD = Bay Area Air Quality Management District COPCs = chemicals of potential concern mg/m3 = milligrams per cubic meter MRL = minimal risk level na = not applicable PM10 = particulate matter of 10 micrometers or smaller TWA = time-weighted average

Notes: (a) The selected airborne Action Level is based on the following hierarchy: (1) the BAAQMD regulatory level (Table E-1) (2) Selected MRLs (Table E-1) (3) the more stringent of the calculated non-carcinogenic and carcinogenic risk-based airborne Action Levels for potentially exposed populations (Tables E-3 and E-4) The selected airborne Action Levels presented are based on an 8-hour TWA unless otherwise noted. (b) The total dust 8-hour TWA action level of 1.1E-01 mg/m3 is based on the California Ambient Air Quality Standard for PM10 (see Note (c)) and the 5-minute TWA action level of 1 mg/m3 corresponds to the presence of visible dust. If these action levels are exceeded, work will be temporarily halted and Site activities and dust control measures will be re- assessed. Additionally, if the 5-minute TWA trigger level of 0.11 mg/m3 is exceeded, dust suppression efforts will be increased (see text for further discussion). (c) California Ambient Air Quality Standard for PM10 Dust, which is a 24-hour time-weighted average (California Code of Regulations, Title 17, Section 70200 (see text for further discussion)).

Erler & Kalinowski, Inc. EKI A90007.00 Page 1 of 1 March 2010 TABLE E-6 Calculated Maximum Hypothetical Dust Concentrations Based on Measured Airborne COPC Concentrations in Soil Samples Horton Landing Park Emeryville, California

Selected Action Maximum Hypothetical Level Maximum Concentration Dust Concentration (a) Airborne COPCs (Table E-5) Detected in Soil 3 (mg/m ) (mg/kg) (mg/m3) Metals Arsenic 2.3E-03 190 1.2E+01 Lead 1.0E-03 744 1.3E+00 PCBs Aroclor 1260 1.3E-02 0.752 1.8E+04 Organochloride Pesticides Dieldrin 1.7E-03 0.589 2.8E+03 Dust 1.1E-01 Trigger level for increasing dust suppression (5-minute avg) Total Dust 1.0E+00 Action level for temporarily stopping work to re- (5-minute avg) assess site activities and dust control measures 1.1E-01 PM10 Dust (8-hour avg)

Abbreviations: avg = average COPCs = chemicals of potential concern mg/kg = milligrams per kilogram mg/m3 = milligrams per cubic meter

Notes: (a) The maximum hypothetical dust concentration for airborne COPCs that should not result in adverse health effects were calculated using Equation [4].

Erler & Kalinowski, Inc. EKI A90007.00 Page 1 of 1 March 2010 TABLE E-7 Summary of Perimeter Air Sampling Equipment, Analytical Methods, and Sampling Frequencies Horton Landing Park Emeryville, California

Anticipated Typical Analytical Selected Action Level Airborne COPCs Sampling Duration of Filter Media Sampler Flow Sampling Frequency Sampling Location Analytical Method (a) Reporting Limit (b) (Table E-5) and Dust Equipment Sampling Event Rate (mg/m3) (mg/m3) Metals High Vol Air 1.13 to 1.27 cubic Arsenic Quartz Fiber First 2 days of active soil All air monitoring 2.6E-06 2.3E-03 Sampler with 100 meter per minute 8 hours EPA Method 6020 Filter excavation (d) stations (Figure E-1) Lead μm inlet size (c) (40 to 45 cfm) 2.6E-06 1.0E-03 PCBs High Vol Air 0.24 cubic meter Quartz Fiber First 2 days of active soil All air monitoring Aroclor 1260 Sampler with a PUF per minute 8 hours EPA Method TO-4A 4.0E-05 1.3E-02 Filter excavation (d) stations (Figure E-1) catridge (e) (7 to 10 cfm) Organochloride Pesticides High Vol Air 0.24 cubic meter Quartz Fiber First 2 days of active soil All air monitoring Dieldrin Sampler with a PUF per minute 8 hours EPA Method TO-4A 4.0E-06 1.7E-03 Filter excavation (d) stations (Figure E-1) catridge (e) (7 to 10 cfm) Dust During remediation 1.0E+00 DataRAMs (f) None na Instantaneous Field Meter 1.0E-03 activities (5-minute avg) Total Dust High Vol Air 1.13 to 1.27 cubic Analyzed using the method Quartz Fiber 1.1E-01 Sampler with 100 meter per minute 8 hours described in 40 CFR Part 1.0E-02 Filter (8-hour avg) μm inlet size (c) (40 to 45 cfm) All air monitoring 50, Appendix B First 2 days of active soil stations (Figure E-1) High Vol Air 1.02 to 1.2 cubic excavation (d) Analyzed using the method Quartz Fiber 1.1E-01 PM10 Dust Sampler with 10 μm meter per minute 8 hours described in 40 CFR Part 2.0E-03 Filter (8-hour avg) inlet size (g) (40 cfm) 50, Appendix B

Abbreviations: avg = average cfm = cubic feet per minute COPC = chemical of potential concern EPA = United States Environmental Protection Agency mg/m3 = milligrams per cubic meter na = not applicable PM10 = particulate matter of 10 micrometers or smaller PUF = polyurethane foam µm = micrometer

Notes: (a) With the exception of the direct-read Total Dust measurements, all samples will be analyzed by an American Industrial Hygiene Association ("AIHA")-accredited laboratory. (b) Reporting limits presented are those typically achieved by K-Prime of Santa Rosa, California, a State certified laboratory. (c) A Tisch Model 5170V high volume sampler will be used to collect samples for total dust and metal COPCs analysis on the same quartz fiber filter. (d) If airborne Action Levels for airborne COPCs, total dust, and PM10 dust are exceeded during the first 2 days of active soil excavation, sampling for airborne COPCs, total dust, and PM10 dust will continue until airborne Action Levels are achieved. (e) A Tisch Model 1000 high volume sampler will be used to collect samples for Aroclor 1260 and dieldrin analysis on a PUF cartridge. (f) Data logging real-time aerosol monitors or personal data real-time aerosol monitors are collectively known as “DataRAMs.” (g) A Tisch Model 6070V high volume sampler will be used to collect PM10 samples.

Erler & Kalinowski, Inc. EKI A90007.00 Page 1 of 1 March 2010 CMF Building Novartis Stanford Avenue Horton Street Easement Parcel

PDU Building Building H

Surface Parking Sherwin-Williams Facility

Parking Structure

City of Emeryville HORTON LANDING PARK Public Works Facility

Union Pacific Railroad

Legend: Notes:

Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Aerial photograph from Google Earth Erler & Open Space Easement to City of Emeryville Pro, 2009. Kalinowski, Inc. Site Map

Horton Landing Park Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure E-1 G:\A90007.00\Mar10\Figure3-03-10 SiteMap.dwg - E-1 CMF Building Novartis Stanford Avenue Horton Street Easement Parcel

PDU Building

7.6 Surface Parking Sherwin-Williams Facility

7.0 3.7 Temescal Creek Parking Structure 7.0 Proposed Excavation of 1 foot of Soil TW

7.9 Embankment Fill Area 6.8 4.5 7.2 7.0

7.2

City of Emeryville 7.3 Public Works Facility 7.8

Union Pacific Railroad

Predominant Wind Direction

Legend: Abbreviations: Notes:

Approximate Property Boundary msl = Mean sea level 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Topographic and Boundary Survey Erler & Map, SANDIS, 21 December 2007. Open Space Easement to City of Emeryville 3. Locations of air monitoring and meteorological stations Kalinowski, Inc. Proposed Excavation of 1 foot of Soil are subject to change based on access issues pending Embankment Fill Area contractor layout of remediation operations and staging. Proposed Excavation Areas and Proposed Excavation for Pedestrian Bridge Footings Perimeter Air Monitoring Station Locations

7.9 Proposed Bottom Excavation Elevation (feet msl) Horton Landing Park Approximate Location of Air Monitoring Station Emeryville, CA 0 75 150 March 2010 Approximate Location of Meteorological Monitoring Station EKI A90007.00 (Approximate Scale in Feet) Figure E-2 G:\A90007.00\Mar10\FigureExcavation E-2 - Area andMonitoring Air Station.dwg3-03-10

APPENDIX F STORM WATER POLLUTION PREVENTION PLAN

APPENDIX F

STORM WATER POLLUTION PREVENTION PLAN Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

1.0 INTRODUCTION...... F-1 1.1 Purpose and Objectives ...... F-1 1.2 Regulatory Status ...... F-1 1.3 SWPPP Amendments ...... F-2

2.0 SITE DESCRIPTION ...... F-2 2.1 Site Description and History...... F-2 2.2 Nature and Extent of Contamination ...... F-2 2.3 Identification of Potential Pollutant Sources ...... F-2 2.4 Drainage Patterns ...... F-3

3.0 BEST MANAGEMENT PRACTICES ...... F-3 3.1 Protection of Storm Water Catch Basins ...... F-3 3.2 Protection of Storm Water from Soil ...... F-3 3.3 Waste Handling ...... F-4 3.4 Control of Non-Storm Water Discharges ...... F-4 3.5 Post-Construction BMPs ...... F-4 3.6 Schedule of Construction Activities ...... F-4

4.0 EROSION CONTROL ...... F-4

5.0 STABILIZATION ...... F-5

6.0 SEDIMENT CONTROL ...... F-5

7.0 RECORD KEEPING ...... F-5 7.1 Inspection and SWPPP Personnel ...... F-5 7.2 Record Keeping ...... F-6

8.0 REFERENCES ...... F-6

EKI A90007.00 F-i Appendix F

APPENDIX F

STORM WATER POLLUTION PREVENTION PLAN Site Cleanup Plan Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

TABLES

F-1 Summary of Potential Pollutant Sources F-2 Summary of Applicable Best Management Practices

FIGURES

F-1 Site Map

ATTACHMENTS

F-1 BMP Details

EKI A90007.00 F-ii Appendix F

1.0 INTRODUCTION

This Storm Water Pollution Prevention Plan (“SWPPP”) has been prepared by Erler & Kalinowski, Inc. (“EKI”) on behalf of our client, the City of Emeryville Redevelopment Agency (“Agency”), to describe the general storm water pollution prevention procedures and protocols that will be employed by the Contractor during implementation of the Site Cleanup Plan (“SCP”) (EKI, 2010) for the Horton Landing Park property (the “Site”) in Emeryville, California (Figure F-1). This SWPPP is prepared pursuant to the requirements of the National Pollution Discharge Elimination System (“NPDES”) General Permit for Storm Water Discharges Associated with Construction Activity, Water Quality Order 99-08-DWQ (“General Permit”) issued by the State Water Resources Control Board. The SCP cleanup strategy for the Site entails limited excavation of impacted shallow soils and transportation and disposal of these soils in a permitted off-Site disposal facility. The Agency will select a Contractor to implement the SCP.

Construction activities at the approximately 1.2-acre Site are regulated by the General Permit based on the size of the Site and the nature of the construction activities, which will include excavation, stockpiling, and removal of impacted shallow soils and replacement with import fill. A notice of intent (“NOI”) to obtain coverage under the General Permit will be submitted to the State of California Water Resources Control Board (“SWRCB”) by the selected Contractor.

The Contractor selected by the Agency to perform the limited soil excavation and disposal activities at the Site will be required to prepare an addendum to this SWPPP that includes: (1) a copy of the NOI and receipt letter, (2) Material Safety Data Sheets (“MSDS”) for chemicals used or stored on the site during construction, (3) an example BMP inspection form, (4) emergency contact information, and (5) any proposed deviations from the procedures specified in this SWPPP. The Contractor will implement the procedures documented in this SWPPP as well as the Contractor’s addendum to this SWPPP. EKI (“Client Representative”) and the Agency will verify that the Contractor implements this Plan and the Contractor’s addendum to this Plan.

1.1 Purpose and Objectives

The SWPPP has been prepared to identify and evaluate pollutant sources associated with construction activities that may affect the quality of storm water discharges, and to identify non-storm water discharges from the Site. In addition, the SWPPP has been prepared to identify Site-specific best management practices (“BMPs”) to reduce or prevent the discharge of pollutants associated with storm water discharges and authorized non-storm water discharges, and to identify a maintenance schedule for BMPs.

1.2 Regulatory Status

The Agency is acting as the Lead Agency under a Memorandum of Understanding (“MOU”) with the California Department of Toxic Substances Control (“DTSC”) and the

EKI A90007.00 F-1 Appendix F

San Francisco Regional Water Quality Control Board (“SFRWQCB”). Ms. Susan G. Colman (the “Site Manager”) will provide regulatory and technical support to the Agency. The Site Manager will confer with the DTSC for review and approval of this SWPPP and the selected Contractor’s Site-specific addendum.

1.3 SWPPP Amendments

The SWPPP shall be updated and amended by the Contractor as necessary to include Contractor-specific information, as well as during implementation of the SCP if the scope of work changes significantly. Changes to the SWPPP may also be implemented if more economical or effective means are identified to reduce pollutant loading to storm water than the ones currently proposed or used.

2.0 SITE DESCRIPTION

2.1 Site Description and History

The Site occupies approximately 1.2 acres in a mixed residential and commercial area, and is located southwest of the intersection of Stanford Avenue and Horton Street in Emeryville, California (Figure F-1). The Site lies approximately 1,800 feet east of the San Francisco Bay shoreline. Temescal Creek cuts across the southern end of the Site and drains westward into San Francisco Bay. The Site is bordered on the north by City of Emeryville Public Works Facility, on the west by Union Pacific Railroad (“UPRR”) tracks, on the south by the Sherwin-Williams facility, and on the east by the Novartis Vaccines & Diagnostics facilities (a parking structure, parking lots, the PDU Building and Building H) and the Novartis Easement Parcel. The Agency has an easement for public pedestrian and bicycle access through the Novartis Easement Parcel and to improve the area. The Site was formerly used as a railroad spur and is currently undeveloped. A paved parking lot covers part of the Site.

2.2 Nature and Extent of Contamination

Previous environmental investigations have found that the chemicals of potential concern (“COPCs”) in soil at the Site are arsenic, lead, Aroclor 1260, dieldrin, and total petroleum hydrocarbons (“TPH”). Maximum concentrations of the primary COPCs in soil are 190 milligrams per kilogram (“mg/kg”) of arsenic, 744 mg/kg of lead, 0.752 mg/kg of Aroclor 1260, 0.589 mg/kg of dieldrin, 1,380 mg/kg of TPH as diesel (“TPH-d”), and 8,520 mg/kg of oil and grease. The EKI Site-specific Health and Safety Plan (“HSP”) in Appendix I of the SCP describes the associated potential chemical hazards.

2.3 Identification of Potential Pollutant Sources

Potential pollutant sources during implementation of the SCP include disturbed soils, which can generate dust and sediment, exposure of contaminated soil to wind and rain, and spills from construction vehicles and construction-related facilities. No sources of

EKI A90007.00 F-2 Appendix F

non-storm water discharge to the storm drain are anticipated. Construction activities, potential pollutant sources, and potential pollutants are summarized in Table F-1.

2.4 Drainage Patterns

While there are no storm water catch basins present at the Site, there are five storm water catch basins off-Site located near the Site boundaries: one is located southwest of Temescal Creek and four are located near the northern portion of the Site (Figure F-1). The unpaved portion of the Site east of Temescal Creek likely drains to the creek, the storm drain channel, or the off-Site storm water catch basin close to Temescal Creek. The rest of the Site likely drain to the east.

3.0 BEST MANAGEMENT PRACTICES

Applicable BMPs for the Site are outlined in Table F-2, and detailed guidelines for implementation of these BMPs are included in Attachment 1. The guidelines shown in Attachment 1 are excerpted from the California Department of Transportation Construction Site Best Management Practice Manual (Caltrans, 2003). The Contractor is expected to use experience and good judgment in the implementation of these guidelines and is expected to adapt these guidelines based on Site-specific needs.

3.1 Protection of Storm Water Catch Basins

The five off-Site storm water catch basins closest to the Site will be protected with gravel berms and filter fabric covering the catch basin grating. Proposed BMPs to address dust and sediments leaving the Site include inspection and decontamination of vehicle tires as outlined in the Decontamination Plan (Appendix C of the SCP) and covering contaminated soil in transport trucks as outlined in the Dust Control Plan (Appendix D of the SCP). Proposed BMPs to address wind erosion include the dust control measures outlined in the Dust Control Plan (Appendix D of the SCP). Protective devices at each catch basin will be inspected before and after storm events to evaluate whether additional controls or corrective maintenance activities are needed. In the event that a major storm is predicted, the filter fabric may be removed from the catch basin grate to reduce the potential for localized flooding.

3.2 Protection of Storm Water from Soil

In general, the majority of the impacted soil will be excavated and directly off-hauled; minimal on-Site stockpiling is anticipated. When feasible, excavation and loading operations will be timed to not occur during rainstorms. If soil is temporarily stockpiled, the soil will be placed on plastic sheeting and covered with plastic sheeting to minimize contact between storm water and the stockpiled soil. The stockpile will be managed in accordance with the BMPs outlined in Table F-2 and Attachment 1. Based on inspection and evaluation of the implemented BMPs, additional controls, including silt fences, straw bales, and sandbag or gravel bag dikes, will be implemented if necessary.

EKI A90007.00 F-3 Appendix F

3.3 Waste Handling

Waste handling BMPs will include spill prevention and control and the management of solid wastes, hazardous wastes, and sanitary and septic wastes. BMPs for waste handling are detailed in Table F-2 and Attachment 1. Liquid construction wastes, such as equipment decontamination wash water collected from the decontamination pad sump, will be collected and containerized as outlined in the Decontamination Plan (Appendix C of the SCP). Treated wood wastes will be handled in accordance with California Code of Regulations (“CCR”) Section 67386.

3.4 Control of Non-Storm Water Discharges

BMPs will also be implemented to control non-storm water discharges, as necessary. The most likely potential sources of non-storm water discharges are equipment and vehicle cleaning, fueling, and maintenance activities. Proposed BMPs to control non- storm water discharges are included in Table F-2 and Attachment 1.

3.5 Post-Construction BMPs

Post-construction BMPs will include design of final Site grading such that drainage velocities do not result in soil erosion and hydroseeding to stabilize shallow soil the Site.

3.6 Schedule of Construction Activities

Construction will commence in spring/summer 2010 and will be completed within approximately 5- to 10-day period.

4.0 EROSION CONTROL

Erosion control BMPs will be implemented to retain soil and sediment on the construction site.

Wind erosion will be controlled during construction using the dust control measures outlined in the Dust Control Plan (Appendix D of the SCP). Erosion controls for storm water runoff may include the installation and maintenance of fiber rolls (waddles) at the perimeter of the active construction areas or subareas at the Site to reduce off-Site storm water run-on to the Site. In addition, the excavations areas will serve as erosion control barriers for active construction areas and will allow on-Site storm water runoff to infiltrate into the ground. Post-construction erosion control measures will include design of final Site grading such that drainage velocities do not result in soil erosion, hydroseeding of the backfilled excavations, and may also include construction of a soil berm around unpaved portions of the Site.

Wind erosion from active stockpiles will be controlled during construction using the dust control measures outlined in the Dust Control Plan (Appendix D of the SCP). Erosion due to storm water runoff from stockpiles will be controlled by placing the stockpiles on plastic sheeting and covering them with plastic.

EKI A90007.00 F-4 Appendix F

5.0 STABILIZATION

The General Permit requires that all disturbed areas of a construction site must be stabilized. Final stabilization for the purposes of submitting a Notice of Termination is anticipated to be satisfied when: (1) all soil disturbing activities are complete, and (2) either a uniform vegetative cover with approximately 70-percent coverage has been established or equivalent stabilization methods have been implemented.

6.0 SEDIMENT CONTROL

Storm water from the Site currently either infiltrates or runs off overland to Temescal Creek or off-Site storm drains. Erosion control measures will be employed as described in Section 4.0 and BMPs for storm water catch basins as described in Section 3.1. For paved areas, sediment control BMPs include protecting storm drain inlets with gravel berms or other sediment removal means. Additional controls including silt fences, hay bales, sandbag dikes, and sediment traps may be implemented if necessary based on inspection and evaluation of the proposed BMPs.

7.0 RECORD KEEPING

Records and plans (including this SWPPP, addenda, and all documents incorporated by reference) will be maintained by the Contractor. Other records maintained by the Contractor include:

• MSDS

• BMP Inspection records

• Records of emergency reports

7.1 Inspection and SWPPP Personnel

BMP Inspections will be conducted (to the extent practical during regular working hours) prior to storms, during storms, and immediately following storms pursuant to the General Permit requirements. During extended storm events, Contractor will endeavor to conduct inspections every 24-hour period. The purposes of the inspections are: (1) to identify areas contributing to storm water discharges, (2) to evaluate whether measures to reduce pollutant loadings identified in the SWPPP are adequate and properly installed and function in accordance with the terms of the General Permit, and (3) to evaluate whether additional controls or corrective maintenance activities are needed.

Contractor will identify and designate qualified persons responsible for these inspections.

EKI A90007.00 F-5 Appendix F

7.2 Record Keeping

As required by the General Permit, the results of the inspections will be documented and kept on file by the Contractor. Records of the BMPs implemented at the Site will also kept on file.

8.0 REFERENCES

California Department of Transportation (“Caltrans”), 2003. Construction Site Best Management Practice Manual, March 2003.

EKI, 2010. Site Cleanup Plan, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., March 2010.

EKI A90007.00 F-6 Appendix F

TABLE F-1 SUMMARY OF POTENTIAL POLLUTANT SOURCES Horton Landing Park Emeryville, California

Construction Activities Pollutant Source Potential Storm Water Pollutants

Soil from excavation activities carried to Sediment, dust, metals, PCBs, Soil Excavation streets or off-Site by runoff and wind. organochloride pesticides, and TPH.

Stockpiling of Soil or Wind erosion, dust, and runoff from Sediment, dust, metals, PCBs, Treated Wood Waste stockpile. organochloride pesticides, and TPH.

Tracking of dirt from Site to streets. Sediment, dust, metals, PCBs, Off-haul of soil Runoff from transportation route (e.g. organochloride pesticides, and TPH. roads) to storm drains or streams.

Water from runoff. Wind erosion from General grading Sediment, dust. Site.

Construction Equipment Spills from fueling and maintenance Diesel fuel, motor oil, hydraulic oil, Fueling and Maintenance operations. antifreeze/coolant.

Construction Equipment Diesel fuel, motor oil, hydraulic oil, Leaking construction equipment. Leaks antifreeze/coolant.

Construction Equipment Cleaning of trucks in equipment Sediment, metals, TPH, diesel fuel, motor Cleaning decontamination area. oil, hydraulic oil, antifreeze/coolant.

Abbreviations: PCBs = Polychlorinated Biphenyls TPH = Total Petroleum Hydrocarbons

A90007.00 Page 1 of 1 Erler & Kalinowski, Inc. March 2010 TABLE F-2 SUMMARY OF APPLICABLE BEST MANAGEMENT PRACTICES Horton Landing Park Emeryville, California

ID (a) BMP

Protection of Storm Water Catch Basins SC-3 Sediment Trap SC-5 Fiber Rolls SC-10 Storm Drain Inlet Protection NS-8 Truck Cleaning WE-1 Wind Erosion Control -- Decontamination Plan (Appendix C of the SCP) -- Dust Control Plan (Appendix D of the SCP) Protection of Storm Water from Soil WM-3 Stockpile Management WM-7 Contaminated Soil Management Control of Non-Storm Water Discharges NS-9 Vehicle and Equipment Fueling NS-10 Vehicle and Equipment Maintenance Waste Handling WM-4 Spill Prevention and Control WM-5 Solid Waste Management WM-6 Hazardous Waste Management WM-9 Sanitary/Septic Waste Management Treated Wood Waste Management - California Code of -- Regulations (“CCR”) Section 67386 Post-Construction BMPs SS-4 Hydroseeding SS-9 Earth Dikes/Drainage Swales -- Final grading design to assist in erosion control.

Abbreviations: BMP = Best Management Practices SCP = Site Cleanup Plan

Notes: (a) BMP Working Details IDs from the Caltrans Construction Site Best Management Practice Manual .

References: (1) California Department of Transportation (“Caltrans”), 2003. Construction Site Best Management Practice Manual , March 2003. (2) EKI, 2010. Site Cleanup Plan , Horton Landing Park, Emeryville, California, March 2010.

A90007.00 Page 1 of 1 Erler & Kalinowski, Inc. March 2010 12"

15" 24" 24"

8" 12" 12' Wide Concrete Storm Drain Culvert 12" 12"

8"

CMF Building 15" Novartis S Horton Street tanford Avenue Easement SS 12" PIPE ATTACHED 12" Parcel TO WALL OF SD CULVERT

10" 12" PDU Building Building H 18"

18"

18" Sherwin-Williams 12" Surface Parking 24" 18" Facility 18" 12" 12" Temescal Creek 12" 12"

Parking Structure 12" 24"

24"

18"

18" HORTON LANDING PARK City of Emeryville Public Works Facility

Storm Drain Tunnel

24"

Union Pacific Railroad

12" 18"

18" 10" 24" Legend: Notes: Erler & Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Aerial photograph from Google Earth Kalinowski, Inc. Pro, 2009. Open Space Easement to City of Emeryville 10" Storm Drain with Manhole (from Aliance, 2002) Site Map

24" Sanitary Sewer (from Department of Public Works, 18 January 1980) Horton Landing Park Storm Water Catch Basin Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure F-1 G:\A90007.00\Mar10\FigureSite - Map.dwg F-1 3-03-10

ATTACHMENT F-1

BMP Details

APPENDIX G SOIL SAMPLING AND ANALYSIS PLAN

APPENDIX G

SOIL SAMPLING AND ANALYSIS PLAN Horton Landing Park Emeryville, California

EPA Project No. BF-96921301

TABLE OF CONTENTS

1.0 INTRODUCTION...... G-1 1.1 Site Description ...... G-1 2.0 BACKGROUND ...... G-1 2.1 Site Use History ...... G-1 2.2 Previous Investigations ...... G-2 2.3 Planned Excavation ...... G-3 3.0 SAMPLING RATIONALE AND PROCEDURES...... G-3 3.1 Additional Characterization Soil Sampling ...... G-3 3.1.1 Soil Sample Collection Procedures for Excavation Pits and Stockpiled Soils ...... G-3 4.0 LABORATORY ANALYTICAL METHODS...... G-4 4.1 Waste Characterization Soil Samples ...... G-4 5.0 FIELD QUALITY ASSURANCE AND QUALITY CONTROL PROCEDURES ...... G-5 5.1 Equipment Decontamination ...... G-5 5.2 Sample Identification Nomenclature ...... G-5 5.2.1 Additional Characterization Soil Sample IDs ...... G-5 5.3 Sample Handling and Transport Procedures ...... G-6 5.4 Field Documentation ...... G-6 5.4.1 Field Logbook/Forms...... G-6 5.4.2 Chain-of-Custody ...... G-6 5.5 Field QA/QC Samples ...... G-7 6.0 SURVEYING...... G-7 7.0 SITE HEALTH AND SAFETY PLAN ...... G-7 8.0 REFERENCES ...... G-8

EKI A90007.00 G-i Appendix G

APPENDIX G

SOIL SAMPLING AND ANALYSIS PLAN Horton Landing Park Emeryville, California

TABLE OF CONTENTS

TABLES

G-1 Sample Containers, Preservatives, and Hold Times for Soil Samples G-2 Summary of Expected Analytical Laboratory Reporting Limits for Soil Analyses

FIGURES

G-1 Site Map G-2 Existing Sampling Locations

ATTACHMENTS

G-1 Example Chain-of-Custody Form

EKI A90007.00 G-ii Appendix G

1.0 INTRODUCTION

This Soil Sampling and Analysis Plan (“SAP”) has been prepared by Erler & Kalinowski, Inc. (“EKI”) on behalf of our client, the City of Emeryville Redevelopment Agency (“Agency”), to standardize the procedures that will be used by EKI to collect and analyze soil samples during implementation of the Site Cleanup Plan (“SCP”) (EKI, 2010) for the Horton Landing Park property (the “Site”) in Emeryville, California (Figure G-1). The selected cleanup alternative in the SCP entails limited excavation and off-Site disposal of impacted shallow soils and transportation of those soils to a permitted off-Site disposal facility. The Agency will select a Contractor to implement the SCP.

EKI personnel (“Client Representative”) will implement this SAP to collect waste characterization samples from stockpiled soils identified for additional characterization, if needed. For purposes of this SAP, waste characterization samples are defined as soil samples collected from excavated soil for characterization for off-Site disposal. Other soil or debris sampling and analysis may also be required to characterize materials encountered during excavation activities.

1.1 Site Description

The Site occupies approximately 1.2 acres in a mixed residential and commercial area, and is located southwest of the intersection of Stanford Avenue and Horton Street in Emeryville, California (Figure G-1). The Site lies approximately 1,800 feet east of the San Francisco Bay shoreline. Temescal Creek cuts across the southern end of the Site and drains westward into San Francisco Bay. The Site is bordered on the north by City of Emeryville Public Works Facility, on the west by Union Pacific Railroad (“UPRR”) tracks, on the south by the Sherwin-Williams facility, and on the east by the Novartis Vaccines & Diagnostics facilities (a parking structure, parking lots, the PDU Building and Building H) and the Novartis Easement Parcel. The Agency has an easement for public pedestrian and bicycle access through the Novartis Easement Parcel and to improve the area. The Site was formerly used as a railroad spur and is currently undeveloped. A paved parking lot covers part of the Site.

2.0 BACKGROUND

2.1 Site Use History

The Site use history summarized below was obtained from the Analysis of Brownfields Cleanup Alternatives (“ABCA”) for the Site (EKI, 2009a).

In the early 1900s, part of the Site was a portion of the New California Jockey Club Stables. The rest of the Site had been developed by the Southern Pacific Railroad and contained the Shell Mound Station and portions of three railroad spurs from the main line of railroad tracks that were located to the west of the Site. Between the early 1900s and continuing to the late 1960s, the Site was generally used as a railroad spur. By 1969, some of the railroad tracks that crossed through the Site were removed and an open

EKI A90007.00 G-1 Appendix G

culvert was constructed for Temescal Creek. Between the late 1980s and early 1990s, the northern area of the Site appears to have ceased to be used for railroad spur tracks. Parts of the remnants of the railroad tracks in this area of the property were removed some time between 2003 and 2005. A parking lot was constructed north of Temescal Creek by the late 1990s. One set of old railroad tracks that go over Temescal Creek and come from the Sherwin-Williams facility that is located south of the Site are still in place.

Historical uses of surrounding properties have included: (a) New California Jockey Club Race Track from the early 1900s until 1912, (b) additional railroad spurs, (c) Shell Mound Park from the early 1900s until approximately 1929, (d) formulation, packaging, and distribution of inorganic and organochlorine pesticides and insecticides by the Sherwin-Williams from approximately 1929 to 1964, (e) production of iron oxide pigments and mixing of other pigments by C. K. Williams & Co., Pfizer, Inc., Pfizer Pigments, Inc., Harcros Pigments, Inc. and Elementis Pigments, Inc. from 1929 through 1988, (f) manufacturing of calculators by the Marchant Calculating Machine Company, Inc. in the early 1950s, (g) specialty tool factory in the late 1960s (h) an electrical contractor warehouse and an asbestos products warehouse in the early 1950s, (i) an office, laboratory, and warehouse associated with Shell Development Company (“Shell”) in Building H probably from the 1940s until 1972, (j) an office and warehouses associated with Shell in buildings north of Building H probably from at least 1967 until 1972, (k) a paper and carton warehouse in the PDU and Rifkin Buildings at least from the early 1950s to the late 1960s, and (l) the Sherwin-Williams facility that historically manufactured lead arsenate pesticides from the 1920s until the late 1940s and oil-based coating products until 1987, and water-based paint products since the late 1980s.

2.2 Previous Investigations

During the environmental investigations conducted at the Site during October and November 2002 and May 2009, EKI drilled a total of 42 soil borings and excavated 19 test pits in order to collect surface and subsurface soil samples and grab groundwater samples for analysis (see Figure G-2). Concentrations of chemicals detected in soil and groundwater were compared to applicable screening criteria to identify chemicals of potential concern (“COPCs”) in the SCP. Based on the number and frequency of screening criteria exceeded, the identified COPCs in soil at the Site are arsenic, lead, Aroclor 1260, dieldrin, and total petroleum hydrocarbons (“TPH”). Maximum concentrations of the identified COPCs in soil are 190 milligrams per kilogram (“mg/kg”) of arsenic, 744 mg/kg of lead, 0.752 mg/kg of Aroclor 1260, 0.589 mg/kg of dieldrin, 1,380 mg/kg of TPH as diesel (“TPH-d”), and 8,520 mg/kg of oil and grease. The EKI Site-specific Health and Safety Plan (“HSP”) in Appendix I of the SCP describes the associated potential chemical hazards.

The results and conclusions of October and November 2002 soil and groundwater investigation were described in the Draft Summary of Soil and Groundwater Sampling Conducted in the Vicinity of Proposed Building 13 and Horton Street Landing Linear Park dated 17 December 2002 and the Summary of Soil and Groundwater Sampling Conducted in the Vicinity of Proposed Horton Street Landing Linear Park dated

EKI A90007.00 G-2 Appendix G

2 May 2003 and were also summarized in the ABCA (EKI, 2009a). The results and conclusions of May 2009 soil and groundwater investigation were described in the Soil and Groundwater Investigation Data Report, dated 20 July 2009 (EKI, 2009b).

2.3 Planned Excavation

Soil will be excavated and removed from the Site as part of the selected cleanup alternative described in the Site Cleanup Plan (“SCP”; EKI, 2010).

3.0 SAMPLING RATIONALE AND PROCEDURES

3.1 Additional Characterization Soil Sampling

Although composite soil samples were collected for waste characterization purposes during the May 2009 investigation,1 additional soil sampling and characterization may be necessary for the disposal of materials excavated from grid areas G and H of the Site or in the event that debris, visibly contaminated soil, or odorous soil is discovered during excavation activities. Additional soil sampling for waste characterization will be determined based on discussions with the selected disposal facilities in accordance with their acceptance requirements and the characteristics of the wastes encountered. Additional soil sampling for characterization of visibly contaminated or odorous soil will be determined in the field based on field observations.

The procedures for collecting additional characterization soil samples during excavation activities are described below. Soil sampling methods are subject to modifications based on field observations.

3.1.1 Soil Sample Collection Procedures for Excavation Pits and Stockpiled Soils

The procedures for collecting additional characterization soil samples are described below.

1. Soil samples collected from excavation pits will be collected by hand either from the sidewall or bottom of the pit or from soil collected in the shovel or backhoe bucket. For excavation areas 3 feet or less in depth, soil samples will be collected directly from the sidewalls and floors of the excavations. For excavation areas deeper than 3 feet, soil samples will be collected from an excavator shovel or bucket. If water is present, the excavation areas will be dewatered prior to collecting the soil samples.

2. If collecting soil samples directly from sidewalls and floors of excavation pits, field staff will scrape the sidewall face or excavation floor with a decontaminated trowel or spoon to expose a fresh surface to sample. If collecting soil samples from an excavator shovel or bucket, field staff will instruct the excavator operator

1 Waste characterization soil samples were not collected from grid areas G and H during the environmental investigation conducted in May 2009.

EKI A90007.00 G-3 Appendix G

to scrape the sidewall face or excavation floor to expose a fresh surface prior to sampling.

3. If collecting soil samples from the excavated material, field staff will collect the soil samples directly from the excavator shovel or bucket or from the stockpiled material.

4. Soil samples collected for waste characterization will be screened through a No. 4 stainless steel sieve to remove coarse material and help homogenize the material. The excavated material will be then composited at a minimum into a four-point composite sample.

5. Soil samples collected from excavation pits, excavated soil in the excavator shovel or bucket, or soil stockpiles as described above will be placed directly into the appropriate containers supplied by the laboratory, as shown in Table G-1. Sample naming, labeling, handling, transport, and chain of custody (“COC”) procedures are described in Section 5.0.

6. Accessible sample locations will be marked with stakes or flags to identify sample location and identification (“ID”). Sample locations will be sketched in field notes, with distances from known points to allow relocation and will be subsequently surveyed by a California licensed surveyor.

4.0 LABORATORY ANALYTICAL METHODS

Sample bottles, preservatives, and hold times for the analytical methods listed above are included in Table G-1. All laboratory analyses will be performed by a California state certified analytical laboratory. A summary of the expected analytical laboratory reporting limits for soil analyses is included in Table G-2. Chemical analyses of soil and debris samples for waste characterization purposes are discussed below. Chemical analyses of soil samples collected from visibly contaminated or odorous soil will be determined in the field.

4.1 Waste Characterization Soil Samples

For waste characterization purposes, soil and debris samples will be analyzed by a California state-certified laboratory for:

• TPH as diesel (“TPH-d”) with silica gel cleanup using U.S. Environmental Protection Agency (“U.S. EPA”) method 8015M; • TPH as motor oil (“TPH-mo”) with silica gel cleanup using U.S. EPA method 8015M; and • Title 22 metals using U.S. EPA method 6020.

Additional chemical analyses may be required for further waste characterization. These analyses will be performed by a California state-certified laboratory and may include:

EKI A90007.00 G-4 Appendix G

• TPH as gasoline (“TPH-g”) using U.S. EPA method 8015M; • Volatile organic compounds (“VOCs”) using U.S. EPA method 8260B; • Semi-volatile organic compounds (“SVOCs”) using U.S. EPA method 8270C; • Organochlorine pesticides using U.S. EPA Method 8081A; • Polychlorinated biphenyls using U.S. EPA Method 8082; • Waste Extraction Test (“WET”) using California Code of Regulations (“CCR”) Title 22, Division 4.5, Chapter 11, Appendix II and subsequent selected metals analysis using U.S. EPA method 6020; and • Toxicity Characteristic Leaching Procedure (“TCLP”) using EPA method 1311 and subsequent selected metals analysis using U.S. EPA method 6020.

Soil samples collected for waste characterization will be homogenized and composited in the field prior to submittal to the laboratory.

5.0 FIELD QUALITY ASSURANCE AND QUALITY CONTROL PROCEDURES

The analytical results of environmental samples collected at the Site will be evaluated for data quality in accordance with the guidelines set in the Quality Assurance Project Plan (“QAPP”) (Appendix H of the SCP).

5.1 Equipment Decontamination

Disposable sampling equipment will be discarded after each soil sample is collected. Reusable sampling equipment will be cleaned prior to sampling and after each use. Between sampling locations, reusable sampling equipment will be washed using a Liquinox (or equivalent non-phosphate containing detergent) solution in water. After washing, the sampling equipment will be rinsed first with clean water, then with distilled water, prior to initial use and between each subsequent use.

5.2 Sample Identification Nomenclature

A unique sample ID will be assigned to each collected sample. Example sample ID nomenclature is described below and may be subject to change.

5.2.1 Additional Characterization Soil Sample IDs

The unique sample identification number for waste characterization sample IDs will be a code that may include: 1. a sample identifier; 2. the purpose of the sample; 3. the matrix, if appropriate for debris; 4. a sequence number; 5. the sampling depth, if appropriate; and 6. a letter for composites, if appropriate.

EKI A90007.00 G-5 Appendix G

5.3 Sample Handling and Transport Procedures

A sample label will be attached to each sample container following sample collection. The label will include the following information and will be filled out with waterproof, permanent ink.

1. Client and project number; 2. Unique sample identification number; 3. Date and time the sample collected; 4. Initials of sample collector; 5. Preservatives used, if any; and 6. Analyses requested.

After labeling, the soil samples will be placed in zip-closure plastic bags, in a cooler with sufficient blue ice or wet ice to maintain the samples temperature at 4 (±2) ºC. Sample containers will be transported to the analytical laboratory under COC procedures, as described below. Completed COC records will be placed in a sealable plastic bag and placed inside the cooler. Each cooler will be sealed with a custody seal that consists of a security tape or label with the date and initial of the sampler. The tape or label will be placed such that the seal must be broken to gain access to the contents of the transport container.

5.4 Field Documentation

5.4.1 Field Logbook/Forms

A field logbook or field forms will be used to document specific field activities and provide a daily record of field activities at the Site.

5.4.2 Chain-of-Custody

Samples will be transported to the analytical laboratory under COC procedures. An example COC is included in Attachment G-1. Field personnel will record the following information on the COC record in waterproof permanent ink:

1. Client and project number; 2. Site and property name; 3. Name or initials and signature of sampler; 4. Name of analytical laboratory; 5. Field sampling identification number for each sample; 6. Date and time of collection for each sample; 7. Number and type of sample containers for each sample; 8. Analysis requested for each sample; 9. Preservatives used, if any, for each sample; 10. Sample matrix for each sample;

EKI A90007.00 G-6 Appendix G

11. Signatures of all persons involved in possession of the samples, (i.e. “relinquished by” and “received by”); 12. Dates and times of transfers of sample possession; 13. Shipping company air bill number, if applicable; 14. Any remarks by either sample collector.

5.5 Field QA/QC Samples

Field quality assurance/quality control (“QA/QC”) samples will be collected during sampling to quantitatively measure and ensure the quality of the sampling effort and the analytical data. Field QA/QC samples may include equipment blanks, trip blanks, temperature blanks, and field duplicates (see Appendix H of the SCP for a description of field QA/QC samples). Field QA/QC samples are to be handled in the same manner as the environmental samples collected. Field QA/QC samples will be collected as follows:

• Equipment blanks on decontaminated trowels, spoons, or shovel will be collected at a 5-percent frequency of all samples collected and will be analyzed for VOCs and metals. An equipment blank consists of distilled water poured over the sampling equipment and into sample containers.

• One trip blank, prepared by the analytical laboratory, will be submitted per batch of waste characterization samples and will be analyzed for VOCs.

• A 40 mL VOA vial marked “temperature blank” will be included in each cooler that is shipped or transported to an analytical laboratory.

• Due to the heterogeneous nature of soil properties and matrix effects, a true soil duplicate sample is difficult to properly subsample. Therefore, no soil duplicates will be collected.

6.0 SURVEYING

Following completion of fieldwork, horizontal coordinates and elevations of the excavation pits and soil sampling locations, if any, will be surveyed by a California state licensed land surveyor. Vertical elevations will be surveyed relative to mean sea level based on the National Geodetic Vertical Datum (“NGVD”) 1929. Horizontal coordinates will be surveyed relative to the California Coordinate System North American Datum (“NAD”) 1927, Zone 3.

7.0 SITE HEALTH AND SAFETY PLAN

The Site Health and Safety Plan (“HSP”) is included in Appendix I of the SCP. All fieldwork will be performed in accordance with the HSP. In general, work on the Site will likely be conducted using Level D protection (e.g., Tyvek, hard hat, and steel-toed boots). Air quality within the breathing zone will be monitored with an organic vapor meter (“OVM”) while work is in progress, and respirators with organic vapor cartridges

EKI A90007.00 G-7 Appendix G

will be available for use if elevated OVM readings are encountered.

8.0 REFERENCES

EKI, 2009a. Analysis of Brownfields Cleanup Alternatives (“ABCA”), Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., 25 March 2009.

EKI, 2009b. Soil and Groundwater Investigation Data Report, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., 20 July 2009.

EKI, 2010. Site Cleanup Plan, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., March 2010.

EKI A90007.00 G-8 Appendix G

TABLE G-1 SAMPLE CONTAINERS, PRESERVATIVES, AND HOLD TIMES FOR SOIL SAMPLES Horton Landing Park Emeryville, California

No. of Sample Analyte Analytical Method Sample Container/Preservative Hold Time Containers Needed 48-hours for extraction TPH-d and TPH-mo EPA Method 8015M with silica gel cleanup 14-days from extraction to analysis 14-days for extraction SVOCs EPA Method 8270C 6-inch long, 2-inch diameter pre- 40-days from extraction to analysis cleaned stainless steel or 14-days for extraction Organochlorine Pesticides EPA Method 8081A butyrate liner 40-days from extraction to analysis or 1 14-days for extraction PCBs EPA Method 8082 12-ounce glass jar/ Chill to 4ºC 40-days from extraction to analysis 28-days for mercury Title 22 Metals EPA Method 6020/7471 6-months for other metals

Percent Moisture ASTM Method D2216 Not Applicable

5-gram En Core® sampler/ TPH-g EPA Method 5035/8015M 2 - 3 14-days Chill to 4ºC 5-gram En Core® sampler/ VOCs EPA Method 5035/8260B 2 - 3 14-days Chill to 4ºC 12-inch long, 2-inch diameter pre- CCR Title 22, Division 4.5, Chapter 11, 28-days for mercury WET cleaned stainless steel or Appendix II 6-months for other metals butyrate liner 1 or 28-days for mercury TCLP EPA Method 1311 12-ounce glass jar/ 6-months for other metals Chill to 4ºC Abbreviations: ASTM = American Society for Testing and Materials Standards EPA = U.S. Environmental Protection Agency No. = number PCBs = Polychlorinated Biphenyls SVOCs = Semi-Volatile Organic Compounds TCLP = Toxicity Characteristic Leaching Procedure TPH-d = Total Petroleum Hydrocarbons diesel range organics TPH-g = Total Petroleum Hydrocarbons gasoline range organics TPH-mo = Total Petroleum Hydrocarbons motor oil range organics VOCs = Volatile Organic Compounds WET = Waste Extraction Test

A90007.00 Page 1 of 1 Erler & Kalinowski, Inc. March 2010 TABLE G-2 SUMMARY OF EXPECTED ANALYTICAL LABORATORY REPORTING LIMITS FOR SOIL ANALYSES Horton Landing Park Emeryville, California

Soil (b)(c) Category/Analytical Method Analyte (a) RL TPH-g 0.5 mg/kg TPH TPH-d 5mg/kg (EPA Method 8015M) TPH-mo 5mg/kg 1,1,1,2-Tetrachloroethane 5ug/kg 1,1,1-Trichloroethane 5ug/kg 1,1,2,2-Tetrachloroethane 5ug/kg 1,1,2-Trichloro-1,2,2-Trifluoroethane 50 ug/kg 1,1,2-Trichloroethane 5ug/kg 1,1-Dichloroethane 5ug/kg 1,1-Dichloroethene 5ug/kg 1,1-Dichloropropene 5ug/kg 1,2,3-Trichlorobenzene 10 ug/kg 1,2,3-Trichloropropane 5ug/kg 1,2,4-Trichlorobenzene 5ug/kg 1,2,4-Trimethylbenzene 5ug/kg 1,2-Dibromo-3-Chloropropane 10 ug/kg 1,2-Dibromoethane 5ug/kg 1,2-Dichlorobenzene 5ug/kg 1,2-Dichloroethane 5ug/kg 1,2-Dichloropropane 5ug/kg 1,3,5-Trimethylbenzene 5ug/kg 1,3-Dichlorobenzene 5ug/kg 1,3-Dichloropropane 5ug/kg 1,4-Dichlorobenzene 5ug/kg 2,2-Dichloropropane 5ug/kg 2-Butanone 50 ug/kg 2-Chlorotoluene 5ug/kg VOCs and Fuel Oxygenates 2-Hexanone 50 ug/kg (EPA Method 8260B) 4-Chlorotoluene 5ug/kg 4-Isopropyltoluene 5ug/kg 4-Methyl-2-Pentanone 50 ug/kg Acetone 125 ug/kg Benzene 5ug/kg Bromobenzene 5ug/kg Bromochloromethane 5ug/kg Bromodichloromethane 5ug/kg Bromoform 5ug/kg Bromomethane 25 ug/kg Carbon Disulfide 50 ug/kg Carbon Tetrachloride 5ug/kg Chlorobenzene 5ug/kg Chloroethane 5ug/kg Chloroform 5ug/kg Chloromethane 25 ug/kg Dibromochloromethane 5ug/kg Dibromomethane 5ug/kg Dichlorodifluoromethane 5ug/kg Diisopropyl Ether (DIPE) 10 ug/kg Ethanol 250 ug/kg Ethyl-t-Butyl Ether (ETBE) 10 ug/kg Ethylbenzene 5ug/kg Isopropylbenzene 5ug/kg Methyl-t-Butyl Ether (MTBE) 5ug/kg

A90007.00 Page 1 of 4 Erler & Kalinowski, Inc. March 2010 TABLE G-2 SUMMARY OF EXPECTED ANALYTICAL LABORATORY REPORTING LIMITS FOR SOIL ANALYSES Horton Landing Park Emeryville, California

Soil (b)(c) Category/Analytical Method Analyte (a) RL Methylene Chloride 50 ug/kg Naphthalene 50 ug/kg Styrene 5ug/kg Tert-Amyl-Methyl Ether (TAME) 10 ug/kg Tert-Butyl Alcohol (TBA) 50 ug/kg Tetrachloroethene 5ug/kg Toluene 5ug/kg Trichloroethene 5ug/kg Trichlorofluoromethane 50 ug/kg Vinyl Acetate 50 ug/kg VOCs and Fuel Oxygenates Vinyl Chloride 5ug/kg (EPA Method 8260B) c-1,2-Dichloroethene 5ug/kg c-1,3-Dichloropropene 5ug/kg n-Butylbenzene 5ug/kg n-Propylbenzene 5ug/kg o-Xylene 5ug/kg p-Isopropyltoluene 5ug/kg p/m-Xylene 5ug/kg sec-Butylbenzene 5ug/kg t-1,2-Dichloroethene 5ug/kg t-1,3-Dichloropropene 5ug/kg tert-Butylbenzene 5ug/kg 1,2,4-Trichlorobenzene 0.5 mg/kg 1,2-Dichlorobenzene 0.5 mg/kg 1,3-Dichlorobenzene 0.5 mg/kg 1,4-Dichlorobenzene 0.5 mg/kg 1,4-Dioxane 0.5 mg/kg 1-Methylnaphthalene 0.4 mg/kg 2,4,5-Trichlorophenol 0.5 mg/kg 2,4,6-Trichlorophenol 0.5 mg/kg 2,4-Dichlorophenol 0.5 mg/kg 2,4-Dimethylphenol 0.5 mg/kg 2,4-Dinitrophenol 2.5 mg/kg 2,4-Dinitrotoluene 0.5 mg/kg 2,6-Dinitrotoluene 0.5 mg/kg 2-Chloronaphthalene 0.5 mg/kg SVOCs 2-Chlorophenol 0.5 mg/kg (EPA Method 8270C) 2-Methylnaphthalene 0.4 mg/kg 2-Methylphenol 0.5 mg/kg 2-Nitroaniline 0.5 mg/kg 2-Nitrophenol 0.5 mg/kg 3,3'-Dichlorobenzidine 0.5 mg/kg 3-Nitroaniline 0.5 mg/kg 3/4-Methylphenol 0.5 mg/kg 4,6-Dinitro-2-Methylphenol 2.5 mg/kg 4-Bromophenyl-Phenyl Ether 0.5 mg/kg 4-Chloro-3-Methylphenol 0.5 mg/kg 4-Chloroaniline 0.5 mg/kg 4-Chlorophenyl-Phenyl Ether 0.5 mg/kg 4-Nitroaniline 0.5 mg/kg 4-Nitrophenol 0.5 mg/kg

A90007.00 Page 2 of 4 Erler & Kalinowski, Inc. March 2010 TABLE G-2 SUMMARY OF EXPECTED ANALYTICAL LABORATORY REPORTING LIMITS FOR SOIL ANALYSES Horton Landing Park Emeryville, California

Soil (b)(c) Category/Analytical Method Analyte (a) RL Acenaphthene 0.4 mg/kg Acenaphthylene 0.4 mg/kg Aniline 0.5 mg/kg Anthracene 0.4 mg/kg Azobenzene 0.5 mg/kg Benzidine 10 mg/kg Benzo (a) Anthracene 0.4 mg/kg Benzo (a) Pyrene 0.35 mg/kg Benzo (b) Fluoranthene 0.4 mg/kg Benzo (g,h,i) Perylene 0.4 mg/kg Benzo (k) Fluoranthene 0.4 mg/kg Benzoic Acid 2.5 mg/kg Benzyl Alcohol 0.5 mg/kg Bis(2-Chloroethoxy) Methane 0.5 mg/kg Bis(2-Chloroethyl) Ether 2.5 mg/kg Bis(2-Chloroisopropyl) Ether 0.5 mg/kg Bis(2-Ethylhexyl) Phthalate 0.5 mg/kg Butyl Benzyl Phthalate 0.5 mg/kg Chrysene 0.4 mg/kg Di-n-Butyl Phthalate 0.5 mg/kg Di-n-Octyl Phthalate 0.5 mg/kg SVOCs Dibenz (a,h) Anthracene 0.4 mg/kg (EPA Method 8270C) Dibenzofuran 0.5 mg/kg Diethyl Phthalate 0.5 mg/kg Dimethyl Phthalate 0.5 mg/kg Fluoranthene 0.4 mg/kg Fluorene 0.4 mg/kg Hexachloro-1,3-Butadiene 0.5 mg/kg Hexachlorobenzene 0.5 mg/kg Hexachlorocyclopentadiene 1.5 mg/kg Hexachloroethane 0.5 mg/kg Indeno (1,2,3-c,d) Pyrene 0.4 mg/kg Isophorone 0.5 mg/kg N-Nitroso-di-n-propylamine 0.5 mg/kg N-Nitrosodimethylamine 0.5 mg/kg N-Nitrosodiphenylamine 0.5 mg/kg Naphthalene 0.4 mg/kg Nitrobenzene 2.5 mg/kg Pentachlorophenol 2.5 mg/kg Phenanthrene 0.4 mg/kg Phenol 0.5 mg/kg Pyrene 0.4 mg/kg Pyridine 0.5 mg/kg Aroclor-1016 50 ug/kg Aroclor-1221 50 ug/kg Aroclor-1232 50 ug/kg PCBs Aroclor-1242 50 ug/kg (EPA Method 8082) Aroclor-1248 50 ug/kg Aroclor-1254 50 ug/kg Aroclor-1260 50 ug/kg Aroclor-1262 50 ug/kg

A90007.00 Page 3 of 4 Erler & Kalinowski, Inc. March 2010 TABLE G-2 SUMMARY OF EXPECTED ANALYTICAL LABORATORY REPORTING LIMITS FOR SOIL ANALYSES Horton Landing Park Emeryville, California

Soil (b)(c) Category/Analytical Method Analyte (a) RL 4,4'-DDD 5ug/kg 4,4'-DDE 5ug/kg 4,4'-DDT 5ug/kg Aldrin 5ug/kg Alpha-BHC 5ug/kg Beta-BHC 5ug/kg Chlordane 50 ug/kg Delta-BHC 5ug/kg Dieldrin 5ug/kg Organochlorine Pesticides Endosulfan I 5ug/kg (EPA Method 8081A) Endosulfan II 5ug/kg Endosulfan Sulfate 5ug/kg Endrin 5ug/kg Endrin Aldehyde 5ug/kg Endrin Ketone 5ug/kg Gamma-BHC 5ug/kg Heptachlor 5ug/kg Heptachlor Epoxide 5ug/kg Methoxychlor 5ug/kg Toxaphene 100 ug/kg Antimony 0.5 mg/kg Arsenic 0.2 mg/kg Barium 0.1 mg/kg Beryllium 0.1 mg/kg Cadmium 0.1 mg/kg Chromium 0.1 mg/kg Cobalt 0.1 mg/kg Title 22 Metals Copper 0.1 mg/kg (EPA Method 6020) Lead 0.1 mg/kg Molybdenum 0.1 mg/kg Nickel 0.1 mg/kg Selenium 0.5 mg/kg Silver 0.1 mg/kg Thallium 0.1 mg/kg Vanadium 0.1 mg/kg Zinc 1mg/kg (EPA Method 7471) Mercury 0.0835 mg/kg

Abbreviations: EPA = U.S. Environmental Protection Agency mg/kg = milligrams per kilogram RL = Reporting Limit SVOCs = Semi-Volatile Organic Compounds TPH-d = Total Petroleum Hydrocarbons diesel range organics TPH-g = Total Petroleum Hydrocarbons gasoline range organics TPH-mo = Total Petroleum Hydrocarbons motor oil range organics ug/kg = micrograms per kilogram VOCs = Volatile Organic Compounds

Notes: (a) Analyte lists for VOCs, SVOCs, and organochlorine pesticides may vary between analytical laboratories. (b) Expected analytical laboratory RLs may vary between analytical laboratories. (c) Dilution of matrix interferences may results in higher reporting limits than the listed expected analytical laboratory reporting limits.

A90007.00 Page 4 of 4 Erler & Kalinowski, Inc. March 2010 CMF Building Novartis Stanford Avenue Horton Street Easement Parcel

PDU Building Building H

Surface Parking Sherwin-Williams Facility

Parking Structure

City of Emeryville HORTON LANDING PARK Public Works Facility

Union Pacific Railroad

Legend: Notes:

Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Aerial photograph from Google Earth Erler & Open Space Easement to City of Emeryville Pro, 2009. Kalinowski, Inc. Site Map

Horton Landing Park Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure G-1 G:\A90007.00\Mar10\Figure3-03-10 SiteMap.dwg - G-1 B-1 CMF Building Horton Street Area H

Stanford Avenue PDU Building

B-2 Building H

Storm Drain Channel Surface Parking Sherwin-Williams Facility

A3 G1 Area G G2 A1 Temescal Creek A4 Parking Structure Area A F5 F6 F2 F4 A5 F3 Area F E11 E13 F10 E9 F1 A2 E2 F9 A6 E14 E7 F7 F8 E5 Area E E3 E12 B3 C3 E1 E10 C1 E8 B1 C4 C5 D9 E6 B5 E4 City of Emeryville B4 Area C D3 D7 D2 C2 C6 D10 Public Works Facility B7 D5 D6 Area D Area B D4 D1 D8 B2 B9 B6 B10 B8

Union Pacific Railroad

Legend: Notes: Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Topographic and Boundary Survey Erler & Grid Area Boundary Map, SANDIS, 21 December 2007. Open Space Easement to City of Emeryville Kalinowski, Inc. Trench Location (2009) Existing Sampling Locations Soil Boring Location (2009) Soil Boring and Grab Groundwater Location (2009) Soil Boring Location (2002) Horton Landing Park Soil Boring and Grab Groundwater Location (2002) Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure G-2 G:\A90007.00\Mar10\Figure3-03-10 Locations.dwgExistingSiteSampling On - G-2

ATTACHMENT G-1

Example Chain-of-Custody Form

Remarks EKI COC No.:

Revision: ______

(A, B, C, D, etc.)

EXPECTED TURNAROUND TIME TURNAROUND EXPECTED

PLACE ON HOLD ON PLACE EXTRACT AND HOLD AND EXTRACT

PAGE ______OF

Percent Moisture (ASTM D-2216) (ASTM Moisture Percent

SVOCs (EPA 8270C) (EPA SVOCs

Organochlorine Pesticides (EPA 8081A) (EPA Pesticides Organochlorine VOCs (EPA 8260B) (EPA VOCs

(Signature/Affiliation or Carrier/Air Bill No.) (Signature/Affiliation) (Signature/Affiliation)

ANALYSES REQUESTED 8082) (EPA PCBs

(EPA 8015M) (EPA

TPH-d and TPH-mo with Silica Gel Cleanup Cleanup Gel Silica with TPH-mo and TPH-d TPH-g (EPA 8015M) (EPA TPH-g

Received by: Received by: Received by:

6020/7471) (EPA Metals 22 Title Analyte Group (Method No.) (Method Group Analyte Time Time Time Containers No./Type of and Preservative Date Date Date CHAIN OF CUSTODY RECORD (Address/Phone No./Contact Person) Date Time Matrix Project No. Sampled By: Laboratory:

. No. Lab Sample Other: _____ (Signature/Affiliation) (Signature/Affiliation) (Signature/Affiliation) : II : YES NO : : PDF FAX : EDD EDF (CA State) : : (circle all that apply) Field Sample Identification Horton Landing ParkEmeryville, California A90007.00 Project Name Location: Reporting Special Instructions/Notes: Relinquished by Relinquished by: Relinquished by: CONSULTING ENGINEERS AND SCIENTISTS 1870 Ogden Drive, Burlingame CA 94010 PHONE: 650-292-9100 FAX: 650-552-9012 EPA Data Report Level Electronic Format (1) Hard Copy Format Provide Chromatograms Report results to (email or fax no.) Erler & Kalinowski, Inc (2)

APPENDIX H QUALITY ASSURANCE PROJECT PLAN

APPENDIX H

QUALITY ASSURANCE PROJECT PLAN Horton Landing Park Emeryville, California

EPA Project No. BF- 96921301

TABLE OF CONTENTS

1.0 INTRODUCTION...... H-1

2.0 FIELD QA/QC PROCEDURES ...... H-1

3.0 QA/QC SAMPLES...... H-1 3.1 QA/QC Sample Types ...... H-1 3.2 Field QA/QC Samples ...... H-2 3.2.1 Field Duplicates ...... H-2 3.2.2 Equipment Blanks ...... H-2 3.2.3 Trip Blanks ...... H-2 3.3 Laboratory QA/QC Checks ...... H-3

4.0 QA/QC EVALUATION PARAMETERS ...... H-3 4.1 Sensitivity ...... H-4 4.2 Accuracy ...... H-4 4.3 Precision ...... H-5 4.4 Representativeness...... H-5 4.5 Completeness ...... H-5 4.6 Comparability ...... H-6

5.0 CORRECTIVE ACTIONS ...... H-6

6.0 REFERENCES ...... H-7

TABLES

H-1 Sample Containers, Preservatives, and Hold Times for Soil Samples H-2 Sample Containers and Hold Times for Air Samples H-3 Summary of Expected Analytical Laboratory Reporting Limits for Soil Analyses H-4 Summary of Expected Analytical Reporting Limits for Air Analyses

FIGURES

H-1 Site Map

EKI A90007.00 H-i Appendix H

1.0 INTRODUCTION

This Quality Assurance Project Plan (“QAPP”) has been prepared by Erler & Kalinowski, Inc. (“EKI”) on behalf of our client, the City of Emeryville Redevelopment Agency (“Agency”) to standardize quality assurance (“QA”) and quality control (“QC”) procedures that will be used by EKI and the selected analytical laboratory to assure that chemical data reported by the analytical laboratory are of known and acceptable quality and are representative of environmental conditions during implementation of the Site Cleanup Plan (“SCP”) (EKI, 2010) for the Horton Landing Park property (the “Site”) in Emeryville, California (Figure H-1).

2.0 FIELD QA/QC PROCEDURES

QA/QC field procedures for equipment decontamination, sampling containers, handling and transport, field documentation, and chain-of-custody are described in detail in the Soil Cleanup Sampling and Analysis Plan (“SAP”) (Appendix G of the SCP) and in the Perimeter Air Monitoring Plan (“AMP”) (Appendix E of the SCP)..

3.0 QA/QC SAMPLES

3.1 QA/QC Sample Types

The quality assurance and quality control (“QA/QC”) program will evaluate chemical analyses based on four types of quality control samples (spikes, duplicates, lab control samples, and blanks) for soil samples analyzed utilizing United States Environmental Protection Agency (“U.S. EPA”) methods. The definitions of these types of samples are as follows:

1. Spikes: Matrix spike analyses are intended to evaluate the accuracy of laboratory analyses for site-specific matrices. Matrix spike analyses are applied to entire batches of data. Surrogate spike analyses are intended to evaluate sample-specific extraction efficiency and accuracy for analyses performed on a gas chromatograph. Performance of the analytical method will be assessed for accuracy by evaluating percent recoveries of the spiked compounds. Percent recoveries will be assessed against established lab- and compound-specific data control limits.

2. Duplicates: Matrix spike duplicate and laboratory duplicate analyses are intended to evaluate the precision of laboratory analyses of site-specific matrices. Laboratory control sample duplicates are intended to monitor analytical precision whenever there is insufficient sample available for matrix spiking. In all cases, performance of the analytical method will be assessed for precision by evaluating the relative percent difference (“RPD”) between duplicates. RPDs will be assessed against established lab-specific data control limits.

EKI A90007.00 H-1 Appendix H

3. Laboratory Control Samples: Laboratory control samples (“LCS”) are intended to evaluate the performance of the analytical system without any potential matrix interferences. If sample matrix effects produce out-of-control matrix spike or matrix spike duplicate results, then the lab control sample recoveries are used to validate the analytical batch. In this case, performance of the analytical method will be assessed for accuracy by evaluating percent recoveries of the lab control sample compounds. Percent recoveries will be assessed against established lab- and compound-specific data control limits.

4. Blanks: Blanks are intended to evaluate the potential for external contamination of samples due to laboratory or field procedures.

3.2 Field QA/QC Samples

The types of field QA/QC samples are described below. Field QA/QC sampling will be collected and analyzed in accordance with requirements as described in the SAP (Appendix G of the SCP).

3.2.1 Field Duplicates

Field Duplicates are a second sample collected at the same time as the original sample using identical sampling techniques. Field Duplicates sample results will be used to assess the precision of the sample collection process and to help determine the representativeness of the sample. Due to the heterogeneous nature of soil properties and matrix effects, a true soil duplicate sample also is difficult to properly subsample. Therefore, no soil duplicates will be collected. Field duplicates for air samples will be collected and analyzed in accordance with procedures described in the AMP (Appendix E of the SCP).

3.2.2 Equipment Blanks

Equipment blank results will be used to assess the effectiveness of equipment decontamination and the introduction of contaminants from disposable or reusable sampling equipment. An equipment blank consists of distilled water poured over or pumped through the sampling equipment and into sample containers. Equipment blanks for soil sampling equipment will be collected and analyzed in accordance with procedures described in the SAP (Appendix G of the SCP). Equipment blanks for air sampling equipment will be collected and analyzed in accordance with procedures described in the AMP (Appendix E of the SCP).

3.2.3 Trip Blanks

Trip blanks are prepared by the analytical laboratory and consist of VOA vials filled with laboratory water in the laboratory. The trip blanks are sent to the sampling site with the sample containers, kept with samples during sample collection, and shipped back to the

EKI A90007.00 H-2 Appendix H

laboratory for analysis with the collected samples. Trip blanks are used to assess the potential introduction of contaminants resulting from sample handling or shipment.

3.2.4 Temperature Blanks

For each cooler that is shipped or transported to an analytical laboratory a 40 mL VOA vial will be included that is marked “temperature blank.” This blank will be used by the sample custodian to check the temperature of samples upon receipt.

3.3 Laboratory QA/QC Checks

Laboratory QC samples will be analyzed at each laboratory for all samples analyzed. Laboratory quality control checks will be performed by the laboratory in adherence to method-specific laboratory QC procedures. The QC procedures listed in Revision 1 of Chapter 1 (dated July 1992) of SW-846 (U.S. EPA, 1986), Update III (U.S. EPA, 1997), will be followed for each laboratory method for chemical analysis of soil samples. Laboratory QC procedures include the following:

1. One internal method blank will be analyzed for every 20 samples analyzed or one per batch for each method, whichever is more frequent.

2. One matrix spike/matrix spike duplicate (“MS/MSD”) will be analyzed for every 20 samples analyzed or one per batch for each method, whichever is more frequent. The MS/MSD will be performed using standard spike compounds on a sample from the Site for each method specified under SW-846.

3. One laboratory control sample (“LCS”) will be analyzed for every 20 samples analyzed or one per batch for each method, whichever is more frequent.

4. All sample analyses will be performed within the holding time specified for each individual analysis. Holding times for analyses are presented in Tables H-1 and H-2.

4.0 QA/QC EVALUATION PARAMETERS

Data quality will be measured and evaluated in terms of sensitivity, precision, and accuracy, representativeness, completeness and comparability (“SPARCC”) parameters. A discussion of these measurement parameters and how they will be used to evaluate the project analytical data follows.

EKI A90007.00 H-3 Appendix H

4.1 Sensitivity

To reduce the possibility of making false rejection decision errors, the reporting limits of the methods used should be below remedial goals although matrix interferences may elevate reporting limits. To reduce the possibility of making false acceptance errors, blank samples (i.e. equipment blanks, trip blanks, and laboratory blanks) associated with projects ideally should be nearly free of detectable contamination. Consequently, under normal conditions, the concentration of chemicals in any blank associated with project samples should not exceed the laboratory’s reporting limit to be considered valid for project use (Tables H-3 and H-4), unless a higher number is considered valid to reflect actual field and laboratory conditions.

4.2 Accuracy

MS/MSD and LCS sample results will be evaluated to determine laboratory accuracy for soil samples as follows:

1. Tabulate spike sample data and calculate the percent recovery as shown below for each spiked compound:

Percent recovery = (T - X) x 100 A

Where: T = total concentration of compound detected in spiked sample X = original concentration of compound reported in sample prior to spiking for MS/MSD samples X= 0 for LCS samples A = actual spike concentration of compound added to MS/MSD or LCS sample

2. Compare recoveries to lab- and compound-specific control limits and qualitatively evaluate the significance of the data points that fall outside of the control limits. The lower control limit (“LCL”) and the upper control limit (“UCL”) for the spiked compounds are lab-specific accuracy goals, and are a function of each laboratory.

3. If the UCL or LCL is exceeded, the laboratory will notify the EKI Project Manager. The data from that period of time for the matrix of interest, soil, will be evaluated for the analyte that exceeds the limits. Corrective action will be taken, as appropriate, by the laboratory and reported as required by relevant guidance documents.

If the data do not meet these laboratory accuracy goals, then the data will be evaluated and corrective action will be taken as outlined in Section 5.0.

EKI A90007.00 H-4 Appendix H

4.3 Precision

MS/MSD, LCS duplicate, or laboratory duplicate sample results will be evaluated to determine laboratory precision for soil samples as follows:

1. Calculate the Relative Percentage Difference (“RPD”) as shown below for each compound of each duplicate pair:

RPD = [(X1-X2)] X 100 X

Where: X1 = concentration of analyte for sample 1 of duplicate X2 = concentration of analyte for sample 2 of duplicate X = average of samples 1 and 2

2. Calculate the average for the RPDs for all duplicate pairs.

The RPDs calculated for all MS/MSD, LCS duplicate, or laboratory duplicate sample analytes will be compared with the laboratory-specific precision goals for soil. If the data do not meet the precision goals, then the data will be evaluated and corrective action will be taken as outlined in Section 5.0.

4.4 Representativeness

Representativeness is a qualitative expression of the degree to which sample data accurately and precisely represent a characteristic of a population, parameter variations at a sampling point, or an environmental condition. Representativeness of data will be promoted by consistently applying established field and laboratory procedures presented in this QAPP and the SAP (Appendix G of the SCP). To help evaluate the representativeness of the data, equipment blanks, trip blanks, and laboratory blank will be analyzed for the presence of contaminants. Data deemed nonrepresentative, by comparison with existing data, will be used only if accompanied by appropriate qualifiers and limits of uncertainty.

4.5 Completeness

Completeness is defined as the percentage of data that is judged to be valid to achieve the objectives of the investigation compared to the total amount of data. Deficiencies in the data may be due to sampling techniques, inadequate accuracy, precision, or laboratory error. While the deficiencies may affect certain aspects of the data, usable data may still be extracted from applicable samples. An evaluation of completeness necessarily involves an evaluation of the impact of missing data on the ability of the project to achieve its goals.

EKI A90007.00 H-5 Appendix H

The overall completeness goal will be 100 percent. The equation used for completeness is presented below:

C (%) = D x 100 P x n

Where: D = number of confident quantifications P = number of analytical parameters per sample requested for analysis n = number of samples requested for analysis

As indicated previously, assessment of completeness alone does not provide a comprehensive evaluation of data quality. Therefore, the percentage of usable and unusable data will also be calculated through use of the project database by the following equations:

% Usable Data = (#Usable Results)/Total Number of Results

% Unusable Data = (#Unusable Results)/Total Number of Results

4.6 Comparability

The comparability objective determines whether analytical conditions are sufficiently uniform for each analytical run such that all of the reported data from multiple runs are consistent. Comparability is promoted by using similar analytical protocols from one sampling event to the next.

5.0 CORRECTIVE ACTIONS

If a batch of soil data does not meet the accuracy or precision goals described in Sections 4.2 and 4.3, then an evaluation and explanation will be sought from the laboratory. Qualitative criteria to be considered include the following:

1. Comparison with historical data;

2. Comparison with regional data trends;

3. Evaluation of the possible influence on data of recent Site activities;

4. Review of sampling procedures; and

5. Review of other data obtained from samples collected on the same date.

EKI A90007.00 H-6 Appendix H

If no reasonable explanation can be established that would validate the represented data and allow use of the data for the project, then the following corrective action(s) may be used:

1. Have the laboratory check sample documentation, calculations, and transcription steps for errors.

2. If possible, repeat the measurement; for example, re-extract and re- analyze. 3. Check instrument calibration and repeat measurement if possible.

4. Check adjustments for ambient conditions such as temperature.

5. Check presence of laboratory background contaminants, such as zinc or methylene chloride.

6. Replace or repair measuring device as necessary.

7. Resample if possible.

Corrective actions will be handled by the contract laboratory on a case-by-case basis with specific actions communicated to the EKI QA/QC Officer as a written corrective action memorandum, where appropriate.

6.0 REFERENCES

EKI, 2010. Site Cleanup Plan, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., March 2010.

EKI A90007.00 H-7 Appendix H

TABLE H-1 SAMPLE CONTAINERS, PRESERVATIVES, AND HOLD TIMES FOR SOIL SAMPLES Horton Landing Park Emeryville, California

No. of Sample Analyte Analytical Method Sample Container/Preservative Hold Time Containers Needed 48-hours for extraction TPH-d and TPH-mo EPA Method 8015M with silica gel cleanup 14-days from extraction to analysis 14-days for extraction SVOCs EPA Method 8270C 6-inch long, 2-inch diameter pre- 40-days from extraction to analysis cleaned stainless steel or 14-days for extraction Organochlorine Pesticides EPA Method 8081A butyrate liner 40-days from extraction to analysis or 1 14-days for extraction PCBs EPA Method 8082 12-ounce glass jar/ Chill to 4ºC 40-days from extraction to analysis 28-days for mercury Title 22 Metals EPA Method 6020/7471 6-months for other metals

Percent Moisture ASTM Method D2216 Not Applicable

5-gram En Core® sampler/ TPH-g EPA Method 5035/8015M 2 - 3 14-days Chill to 4ºC 5-gram En Core® sampler/ VOCs EPA Method 5035/8260B 2 - 3 14-days Chill to 4ºC 12-inch long, 2-inch diameter pre- CCR Title 22, Division 4.5, Chapter 11, 28-days for mercury WET cleaned stainless steel or Appendix II 6-months for other metals butyrate liner 1 or 28-days for mercury TCLP EPA Method 1311 12-ounce glass jar/ 6-months for other metals Chill to 4ºC

Abbreviations: ASTM = American Society for Testing and Materials Standards EPA = U.S. Environmental Protection Agency No. = number PCBs = Polychlorinated Biphenyls SVOCs = Semi-Volatile Organic Compounds TCLP = Toxicity Characteristic Leaching Procedure TPH-d = Total Petroleum Hydrocarbons diesel range organics TPH-g = Total Petroleum Hydrocarbons gasoline range organics TPH-mo = Total Petroleum Hydrocarbons motor oil range organics VOCs = Volatile Organic Compounds WET = Waste Extraction Test

A90007.00 Page 1 of 1 Erler & Kalinowski, Inc. March 2010 TABLE H-2 SAMPLE CONTAINERS AND HOLD TIMES FOR AIR SAMPLES Horton Landing Park Emeryville, California

No. of Sample Analyte Analytical Method Sample Container Hold Time Containers Needed

TSP 40 CFR Part 50, Appendix B na Quartz fiber filter 1 28-days for mercury Arsenic and Lead EPA Method 6020 6-months for other metals

PM10 40 CFR Part 50, Appendix B Quartz fiber filter 1 na

Aroclor 1260 7-days for extraction EPA Method TO-4A PUF Cartridge 1 40-days from extraction to analysis Dieldrin

Abbreviations: CFR = Code of Federal Regulations EPA = U.S. Environmental Protection Agency na = not applicable PM10 = airborne particulate matter with effective particle diameters less than or equal to 10 microns PUF = polyurethane foam TSP = total suspended particulates

A90007.00 Page 1 of 1 Erler & Kalinowski, Inc. March 2010 TABLE H-3 SUMMARY OF EXPECTED ANALYTICAL LABORATORY REPORTING LIMITS FOR SOIL ANALYSES Horton Landing Park Emeryville, California

Soil (b)(c) Category/Analytical Method Analyte (a) RL TPH-g 0.5 mg/kg TPH TPH-d 5mg/kg (EPA Method 8015M) TPH-mo 5mg/kg 1,1,1,2-Tetrachloroethane 5ug/kg 1,1,1-Trichloroethane 5ug/kg 1,1,2,2-Tetrachloroethane 5ug/kg 1,1,2-Trichloro-1,2,2-Trifluoroethane 50 ug/kg 1,1,2-Trichloroethane 5ug/kg 1,1-Dichloroethane 5ug/kg 1,1-Dichloroethene 5ug/kg 1,1-Dichloropropene 5ug/kg 1,2,3-Trichlorobenzene 10 ug/kg 1,2,3-Trichloropropane 5ug/kg 1,2,4-Trichlorobenzene 5ug/kg 1,2,4-Trimethylbenzene 5ug/kg 1,2-Dibromo-3-Chloropropane 10 ug/kg 1,2-Dibromoethane 5ug/kg 1,2-Dichlorobenzene 5ug/kg 1,2-Dichloroethane 5ug/kg 1,2-Dichloropropane 5ug/kg 1,3,5-Trimethylbenzene 5ug/kg 1,3-Dichlorobenzene 5ug/kg 1,3-Dichloropropane 5ug/kg 1,4-Dichlorobenzene 5ug/kg 2,2-Dichloropropane 5ug/kg 2-Butanone 50 ug/kg 2-Chlorotoluene 5ug/kg VOCs and Fuel Oxygenates 2-Hexanone 50 ug/kg (EPA Method 8260B) 4-Chlorotoluene 5ug/kg 4-Isopropyltoluene 5ug/kg 4-Methyl-2-Pentanone 50 ug/kg Acetone 125 ug/kg Benzene 5ug/kg Bromobenzene 5ug/kg Bromochloromethane 5ug/kg Bromodichloromethane 5ug/kg Bromoform 5ug/kg Bromomethane 25 ug/kg Carbon Disulfide 50 ug/kg Carbon Tetrachloride 5ug/kg Chlorobenzene 5ug/kg Chloroethane 5ug/kg Chloroform 5ug/kg Chloromethane 25 ug/kg Dibromochloromethane 5ug/kg Dibromomethane 5ug/kg Dichlorodifluoromethane 5ug/kg Diisopropyl Ether (DIPE) 10 ug/kg Ethanol 250 ug/kg Ethyl-t-Butyl Ether (ETBE) 10 ug/kg Ethylbenzene 5ug/kg Isopropylbenzene 5ug/kg Methyl-t-Butyl Ether (MTBE) 5ug/kg

A90007.00 Page 1 of 4 Erler & Kalinowski, Inc. March 2010 TABLE H-3 SUMMARY OF EXPECTED ANALYTICAL LABORATORY REPORTING LIMITS FOR SOIL ANALYSES Horton Landing Park Emeryville, California

Soil (b)(c) Category/Analytical Method Analyte (a) RL Methylene Chloride 50 ug/kg Naphthalene 50 ug/kg Styrene 5ug/kg Tert-Amyl-Methyl Ether (TAME) 10 ug/kg Tert-Butyl Alcohol (TBA) 50 ug/kg Tetrachloroethene 5ug/kg Toluene 5ug/kg Trichloroethene 5ug/kg Trichlorofluoromethane 50 ug/kg Vinyl Acetate 50 ug/kg VOCs and Fuel Oxygenates Vinyl Chloride 5ug/kg (EPA Method 8260B) c-1,2-Dichloroethene 5ug/kg c-1,3-Dichloropropene 5ug/kg n-Butylbenzene 5ug/kg n-Propylbenzene 5ug/kg o-Xylene 5ug/kg p-Isopropyltoluene 5ug/kg p/m-Xylene 5ug/kg sec-Butylbenzene 5ug/kg t-1,2-Dichloroethene 5ug/kg t-1,3-Dichloropropene 5ug/kg tert-Butylbenzene 5ug/kg 1,2,4-Trichlorobenzene 0.5 mg/kg 1,2-Dichlorobenzene 0.5 mg/kg 1,3-Dichlorobenzene 0.5 mg/kg 1,4-Dichlorobenzene 0.5 mg/kg 1,4-Dioxane 0.5 mg/kg 1-Methylnaphthalene 0.4 mg/kg 2,4,5-Trichlorophenol 0.5 mg/kg 2,4,6-Trichlorophenol 0.5 mg/kg 2,4-Dichlorophenol 0.5 mg/kg 2,4-Dimethylphenol 0.5 mg/kg 2,4-Dinitrophenol 2.5 mg/kg 2,4-Dinitrotoluene 0.5 mg/kg 2,6-Dinitrotoluene 0.5 mg/kg 2-Chloronaphthalene 0.5 mg/kg SVOCs 2-Chlorophenol 0.5 mg/kg (EPA Method 8270C) 2-Methylnaphthalene 0.4 mg/kg 2-Methylphenol 0.5 mg/kg 2-Nitroaniline 0.5 mg/kg 2-Nitrophenol 0.5 mg/kg 3,3'-Dichlorobenzidine 0.5 mg/kg 3-Nitroaniline 0.5 mg/kg 3/4-Methylphenol 0.5 mg/kg 4,6-Dinitro-2-Methylphenol 2.5 mg/kg 4-Bromophenyl-Phenyl Ether 0.5 mg/kg 4-Chloro-3-Methylphenol 0.5 mg/kg 4-Chloroaniline 0.5 mg/kg 4-Chlorophenyl-Phenyl Ether 0.5 mg/kg 4-Nitroaniline 0.5 mg/kg 4-Nitrophenol 0.5 mg/kg

A90007.00 Page 2 of 4 Erler & Kalinowski, Inc. March 2010 TABLE H-3 SUMMARY OF EXPECTED ANALYTICAL LABORATORY REPORTING LIMITS FOR SOIL ANALYSES Horton Landing Park Emeryville, California

Soil (b)(c) Category/Analytical Method Analyte (a) RL Acenaphthene 0.4 mg/kg Acenaphthylene 0.4 mg/kg Aniline 0.5 mg/kg Anthracene 0.4 mg/kg Azobenzene 0.5 mg/kg Benzidine 10 mg/kg Benzo (a) Anthracene 0.4 mg/kg Benzo (a) Pyrene 0.35 mg/kg Benzo (b) Fluoranthene 0.4 mg/kg Benzo (g,h,i) Perylene 0.4 mg/kg Benzo (k) Fluoranthene 0.4 mg/kg Benzoic Acid 2.5 mg/kg Benzyl Alcohol 0.5 mg/kg Bis(2-Chloroethoxy) Methane 0.5 mg/kg Bis(2-Chloroethyl) Ether 2.5 mg/kg Bis(2-Chloroisopropyl) Ether 0.5 mg/kg Bis(2-Ethylhexyl) Phthalate 0.5 mg/kg Butyl Benzyl Phthalate 0.5 mg/kg Chrysene 0.4 mg/kg Di-n-Butyl Phthalate 0.5 mg/kg Di-n-Octyl Phthalate 0.5 mg/kg SVOCs Dibenz (a,h) Anthracene 0.4 mg/kg (EPA Method 8270C) Dibenzofuran 0.5 mg/kg Diethyl Phthalate 0.5 mg/kg Dimethyl Phthalate 0.5 mg/kg Fluoranthene 0.4 mg/kg Fluorene 0.4 mg/kg Hexachloro-1,3-Butadiene 0.5 mg/kg Hexachlorobenzene 0.5 mg/kg Hexachlorocyclopentadiene 1.5 mg/kg Hexachloroethane 0.5 mg/kg Indeno (1,2,3-c,d) Pyrene 0.4 mg/kg Isophorone 0.5 mg/kg N-Nitroso-di-n-propylamine 0.5 mg/kg N-Nitrosodimethylamine 0.5 mg/kg N-Nitrosodiphenylamine 0.5 mg/kg Naphthalene 0.4 mg/kg Nitrobenzene 2.5 mg/kg Pentachlorophenol 2.5 mg/kg Phenanthrene 0.4 mg/kg Phenol 0.5 mg/kg Pyrene 0.4 mg/kg Pyridine 0.5 mg/kg Aroclor-1016 50 ug/kg Aroclor-1221 50 ug/kg Aroclor-1232 50 ug/kg PCBs Aroclor-1242 50 ug/kg (EPA Method 8082) Aroclor-1248 50 ug/kg Aroclor-1254 50 ug/kg Aroclor-1260 50 ug/kg Aroclor-1262 50 ug/kg

A90007.00 Page 3 of 4 Erler & Kalinowski, Inc. March 2010 TABLE H-3 SUMMARY OF EXPECTED ANALYTICAL LABORATORY REPORTING LIMITS FOR SOIL ANALYSES Horton Landing Park Emeryville, California

Soil (b)(c) Category/Analytical Method Analyte (a) RL 4,4'-DDD 5ug/kg 4,4'-DDE 5ug/kg 4,4'-DDT 5ug/kg Aldrin 5ug/kg Alpha-BHC 5ug/kg Beta-BHC 5ug/kg Chlordane 50 ug/kg Delta-BHC 5ug/kg Dieldrin 5ug/kg Organochlorine Pesticides Endosulfan I 5ug/kg (EPA Method 8081A) Endosulfan II 5ug/kg Endosulfan Sulfate 5ug/kg Endrin 5ug/kg Endrin Aldehyde 5ug/kg Endrin Ketone 5ug/kg Gamma-BHC 5ug/kg Heptachlor 5ug/kg Heptachlor Epoxide 5ug/kg Methoxychlor 5ug/kg Toxaphene 100 ug/kg Antimony 0.5 mg/kg Arsenic 0.2 mg/kg Barium 0.1 mg/kg Beryllium 0.1 mg/kg Cadmium 0.1 mg/kg Chromium 0.1 mg/kg Cobalt 0.1 mg/kg Title 22 Metals Copper 0.1 mg/kg (EPA Method 6020) Lead 0.1 mg/kg Molybdenum 0.1 mg/kg Nickel 0.1 mg/kg Selenium 0.5 mg/kg Silver 0.1 mg/kg Thallium 0.1 mg/kg Vanadium 0.1 mg/kg Zinc 1mg/kg (EPA Method 7471) Mercury 0.0835 mg/kg

Abbreviations: EPA = U.S. Environmental Protection Agency mg/kg = milligrams per kilogram PCBs = Polychlorinated Biphenyls RL = Reporting Limit SVOCs = Semi-Volatile Organic Compounds TPH-d = Total Petroleum Hydrocarbons diesel range organics TPH-g = Total Petroleum Hydrocarbons gasoline range organics TPH-mo = Total Petroleum Hydrocarbons motor oil range organics ug/kg = micrograms per kilogram VOCs = Volatile Organic Compounds

Notes: (a) Analyte lists for VOCs, SVOCs, and organochlorine pesticides may vary between analytical laboratories. (b) Expected analytical laboratory RLs may vary between analytical laboratories. (c) Dilution of matrix interferences may results in higher reporting limits than the listed expected analytical laboratory reporting limits.

A90007.00 Page 4 of 4 Erler & Kalinowski, Inc. March 2010 TABLE H-4 SUMMARY OF EXPECTED ANALYTICAL LABORATORY REPORTING LIMITS FOR AIR ANALYSES Horton Landing Park Emeryville, California

Category/Analytical Air Analyte Method RL (a)

40 CFR Part 50, TSP 1.0E-03 mg/m3 Appendix B PM10 2.0E-03 mg/m3 Arsenic 5.0E-07 3 EPA Method 6020 mg/m Lead 5.0E-07 mg/m3 Aroclor 1260 4.0E-05 3 EPA Method TO-4A mg/m Dieldrin 4.0E-06 mg/m3

Abbreviations: EPA = U.S. Environmental Protection Agency mg/m3 = milligrams per cubic meter RL = Reporting Limit

Notes: (a) Dilution or matrix interferences may result in higher reporting limits than the listed expected analytical laboratory reporting limits.

Page 1 of 1 Erler & Kalinowski, Inc. A90007.00 March 2010 CMF Building Novartis Stanford Avenue Horton Street Easement Parcel

PDU Building Building H

Surface Parking Sherwin-Williams Facility

Parking Structure

City of Emeryville HORTON LANDING PARK Public Works Facility

Union Pacific Railroad

Legend: Notes:

Approximate Property Boundary 1. All locations are approximate. Novartis Easement Parcel 2. Basemap source: Aerial photograph from Google Earth Erler & Open Space Easement to City of Emeryville Pro, 2009. Kalinowski, Inc. Site Map

Horton Landing Park Emeryville, CA 0 75 150 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure H-1 G:\A90007.00\Mar10\Figure3-03-10 SiteMap.dwg - H-1

APPENDIX I EKI SITE SPECIFIC HEALTH AND SAFETY PLAN

______

SITE HEALTH AND SAFETY PLAN

for

Site Cleanup Plan

Horton Landing Park Southwest of the Intersection of Stanford Avenue and Horton Street Emeryville, California

EPA Project No. BF- 96921301

March 2010 (EKI A90007.00)

Erler & Kalinowski, Inc.

______

Consulting Engineers and Scientists 1870 Ogden Drive Burlingame, Ca 94010-5306 (650) 292-9100 Fax: (650) 552-9012

SITE HEALTH AND SAFETY PLAN for Site Cleanup Plan

Horton Landing Park Emeryville, California (EKI A90007.00)

EPA Project No. BF- 96921301

TABLE OF CONTENTS

1.0 SITE HEALTH AND SAFETY PLAN SUMMARY ...... 1

2.0 INTRODUCTION ...... 1

3.0 MULTI-EMPLOYER WORKSITE PROCEDURES ...... 2

4.0 KEY HEALTH AND SAFETY PERSONNEL ...... 3

5.0 TASK/OPERATION SAFETY AND HEALTH PLAN ...... 4

5.1 Site Description ...... 4 5.2 Site History ...... 4 5.3 Proposed Field Activities ...... 6 5.4 Potential Physical Hazards ...... 6 5.4.1 Operating Equipment ...... 6 5.4.2 Noise ...... 7 5.4.3 Open Excavations and Confined Spaces ...... 7 5.4.4 Traffic Hazards ...... 9 5.4.5 Heat Stress ...... 9 5.4.6 Underground and Overhead Utilities ...... 10 5.4.7 Fire Protection ...... 11 5.5 Potential Chemical Hazards ...... 11 5.5.1 Potential Exposures and Health Hazards ...... 11 5.5.2 Exposure Minimization ...... 13 5.6 Exposure Hazard Analysis ...... 13 5.7 Protective Measures ...... 14 5.7.1 Personal Protective Equipment ...... 14 5.7.2 Site Control Measures and Work Zones ...... 14 5.7.3 Exposure Monitoring and Control Measures ...... 15 5.7.3.1 Visible Dust ...... 15 5.7.3.2 Airborne Metals (Lead and Arsenic) ...... 15 5.7.3.3 Airborne Petroleum Hydrocarbons and VOCs ...... 16 5.8 Decontamination Procedures ...... 17 5.8.1 Vehicles and Large Equipment ...... 17 5.8.2 Personnel and Tools/Small Equipment ...... 18 5.9 Spill Containment ...... 18 5.10 Training and Safety Meetings ...... 18 5.11 Medical Surveillance ...... 19 5.12 Site Facilities ...... 19

SITE HEALTH AND SAFETY PLAN for Site Cleanup Plan

Horton Landing Park Emeryville, California (EKI A90007.00)

EPA Project No. BF- 96921301

TABLE OF CONTENTS

6.0 EMERGENCY RESPONSE PLAN ...... 20

7.0 GENERAL WORK RULES ...... 21

8.0 REFERENCES ...... 22

9.0 SIGNATURES ...... 23

TABLES

Table 1 Maximum Concentrations of Chemicals Detected in Soil and Groundwater Table 2 Allowable Chemical Exposure Limits and Exposure Symptoms Table 3 Emergency Information

FIGURES

Figure 1 Site Map Figure 2 Directions to Emergency Hospital

ATTACHMENTS

1 Daily Tailgate Safety Meeting Form

1.0 SITE HEALTH AND SAFETY PLAN SUMMARY

SITE NAME: Horton Landing Park

ADDRESS: Southwest of the Intersection of Stanford Avenue and Horton Street Emeryville, California

SITE TELEPHONE: To be determined

ANTICIPATED PROJECT DATE: Spring/Summer 2010

EKI JOB NUMBER: A90007.00

SITE SAFETY OFFICER/ FIELD SITE SAFETY OFFICER: To be determined

PROJECT MANAGER: Earl D. James, P.G.

TYPE OF ACTIVITY POTENTIAL HAZARDS

[X] Soils Sampling [X] Organics [ ] Acids [X] Groundwater Sampling [X] Inorganics [ ] Bases [ ] Site Walk through [X] Heavy Metals [ ] Fire [X] Remedial Activities [X] Solvents [X] Contractor Supervision [X] Pesticides [X] Other: Contractor Observation [X] Other: Petroleum Hydrocarbons

PERSONAL PROTECTIVE EQUIPMENT Level: [ ] A [ ] B [*] C [X] D

[X] Hard Hat [X] Ear Plugs/Muffs [X] Boots [X] Coveralls [X] Steel toed [X] Cotton [ ] Chemical resistant [X] Tyvek (have available) [X] Safety Goggles or Glasses [X] First Aid Kit [X] Respirator (have available) [X] Gloves [X] Organic vapor cartridges [X] Disposable inner nitrile [X] Particulate filters [ ] Disposable outer PCB [ ] Other: Acid Gas filters resistant (i.e., North Viton) [X] Organic Vapor Meter [X] Other: Perimeter dust meters during earth moving activities/Noise Meter [ ] Dräger Tubes

* Potential to upgrade to Level C.

2.0 INTRODUCTION

This Site Health and Safety Plan (“HSP”) establishes Site and activity-specific health and safety protocols for Erler & Kalinowski, Inc. (“EKI”) employees performing field activities at the Horton Landing Park property (“Site”) located southwest of the intersection of Stanford Avenue and Horton Street in Emeryville, California (see Figure 1). This HSP was developed in accordance with Federal and California Occupational Safety and Health Administration (“OSHA”) standards for hazardous waste operations (29 CFR 1910.120 and 8 CCR 5192).

The following additional reference sources and guidance documents published by the National Institute for Occupational Safety and Health (“NIOSH”) and the American Conference of Governmental Industrial Hygienists (“ACGIH”) were used to develop this HSP:

• ACGIH, 2009. Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices.

• NIOSH, 2005. Pocket Guide to Chemical Hazards. September 2005.

A remediation contractor (“Contractor”) will be retained by the City of Emeryville Redevelopment Agency (“Agency”) to perform construction activities related to Site remediation. For informational purposes only, this HSP shall be provided to the Contractor and any subcontractors of EKI involved in Site activities. Entities and personnel other than EKI employees shall be solely responsible for their own health and safety and shall independently assess on-Site conditions and develop their own health and safety protocols. Other entities or personnel that anticipate using health and safety measures in the work zone that are less stringent than EKI’s measures must immediately contact EKI’s Site Safety Officer.

EKI has developed a Corporate Health and Safety Plan (“CHSP”) for EKI employees. The CHSP has been written to comply with current applicable health and safety regulations, including OSHA 29 CFR 1910.120 et seq. and 8 CCR 5192, Hazardous Waste Operations and Emergency Response. Many protocols under the corporate plan, such as general training, respirator fit testing, medical monitoring, and record keeping, are conducted routinely and are not repeated herein. Questions regarding the EKI Corporate Plan are referred to Thomas W. Kalinowski, Sc.D., Vice President and Corporate Health and Safety Officer, at (650) 292-9100.

A copy of this HSP, along with any addenda containing Site and activity-specific health and safety information, will be kept in a conspicuous location on Site at all times while work is being conducted by EKI employees.

1

3.0 MULTI-EMPLOYER WORKSITE PROCEDURES

In light of the Cal-OSHA Multi-Employer Worksite Rule, EKI is explicitly stating that all Site employers are specifically responsible for the health and safety of their respective employees. EKI has no contractual responsibility, control, or authority over the health and safety of contractors at the Site. EKI has no authority to correct Site hazards created by other Site personnel. EKI personnel will not assume such responsibility in the field.

EKI personnel must follow the following procedures:

• Maintain the procedures outlined in this plan for the sake of EKI personnel. In the event that EKI personnel observe that a contractor does not follow the minimum activities as defined in this HSP, EKI will advise the contractor and the Agency of non-compliance. Any such notifications will be documented in the project field logs. If the non-compliance creates a potential health or safety hazard or exposure situation for EKI personnel, and the contractor responsible for the hazard does not correct the situation, then EKI personnel shall remove themselves from the work zone or any zone of potential exposure. EKI personnel shall not return to the work area until the situation is safe for their return as judged by the Site Safety Officer (“SSO”). In the absence of the SSO during field activities, the SSO will designate a Field Site Safety Officer (“FSSO”; see Section 4.0);

• EKI personnel shall not create potential hazard situations that may endanger other contractors or Site personnel; and

• The Site Safety Officer or his/her representative will conduct air monitoring within a work zone where EKI personnel are working. As a matter of convenience and coordination, the monitoring information may be provided to others on-Site, including sub-contractors. However, the Contractor and all other contractors, sub-contractors, and other third parties are responsible for obtaining and responding, as appropriate, to air monitoring information at the Site consistent with their corporate policies and Site-specific plans. EKI will not assume responsibility for air monitoring and protection levels for other contractors or Site personnel.

2

4.0 KEY HEALTH AND SAFETY PERSONNEL

The EKI Corporate Health and Safety Officer is Thomas W. Kalinowski, Sc.D. The SSO will be determined prior to the start of work at the Site. The SSO may designate a FSSO. The SSO or FSSO is to be present during field activities at all times. The SSO or FSSO is responsible for the following:

• Observing field activities for compliance with this HSP, applicable addenda, and EKI's Corporate Health and Safety Plan;

• Modifying health and safety protocols or terminating field work when unsafe work conditions exist;

• Familiarizing EKI employees with health and safety protocols;

• Ensuring that EKI employees wear appropriate personal protective equipment;

• Recording data from direct reading instruments and evaluating potential hazards to EKI employees;

• Monitoring decontamination procedures; and

• Recording the occurrence of any injury or illness during fieldwork.

The SSO and FSSO have the authority to suspend the operations of EKI employees and EKI subcontractors if it is determined that Site conditions have become unsafe. The SSO and FSSO will also be members of the Site resident engineering team and will have responsibilities in EKI’s construction review activities. Conflicts, if any, between the multiple responsibilities of the SSO and FSSO will be resolved with the participation of the Project Manager or Corporate Health and Safety Officer.

3

5.0 TASK/OPERATION SAFETY AND HEALTH PLAN

5.1 Site Description

The Site occupies approximately 1.2 acres in a mixed residential and commercial area, and is located southwest of the intersection of Stanford Avenue and Horton Street in Emeryville, California (Figure 1). The Site lies approximately 1,800 feet east of the San Francisco Bay shoreline. Temescal Creek cuts across the southern end of the Site and drains westward into San Francisco Bay. The Site is bordered on the north by City of Emeryville Public Works Facility, on the west by Union Pacific Railroad (“UPRR”) tracks, on the south by the Sherwin-Williams facility, and on the east by the Novartis Vaccines & Diagnostics facilities (a parking structure, parking lots, the PDU Building and Building H) and the Novartis Easement Parcel. The Agency has an easement for public pedestrian and bicycle access through the Novartis Easement Parcel and to improve the area. The Site was formerly used as a railroad spur and is currently undeveloped. A paved parking lot covers part of the Site.

5.2 Site History

Based on available information reviewed by EKI (EKI, 2009a), the Site history and characteristics are described generally as follows:

Early 1900s

In 1903, part of the Site was a portion of the New California Jockey Club Stables and contained two buildings that were used as kitchens and a small shed. The rest of the Site had been developed by the Southern Pacific Railroad and contained the Shell Mound Station and portions of three railroad spurs from the main line of railroad tracks that were located to the west. These railroad spurs may have serviced the nearby New California Jockey Club Race Track or other industries located in the vicinity of the spurs. On the 1911 Sanborn map, the buildings previously used as kitchens were labeled as rooms and the small shed had been replaced by two stables. The racetrack was reportedly closed in 1912 and buildings destroyed in a fire in 1916.

Surrounding land uses up to 1911 included the Southern Pacific Railroad tracks and the Shell Mound Park to the west and the New California Jockey Club Race Track to the east and south of the Site.

1930s to the 1950s

Aerial photographs within the 1930 to 1950 timeframe indicate that land use at the Site has not significantly changed since 1911. The Site continues to be used for railroad spur tracks. Sanborn maps were not available for this time period.

During the 1930s to 1950s, surrounding land uses to the north, east, and south of the Site appear to have changed considerably since the early 1900s. The former race track was subdivided and developed for industrial use. Several buildings, including the former Rifkin Building and the PDU Building, were constructed north and east of the Site in the 1930s to the 1950s. The former Rifkin Building and the PDU Building were constructed before 1939, Building H was constructed between 1939 and 1946, and buildings north of Building H were constructed and demolished or remodeled between 1939 and 1946.

Surrounding land uses to the west of the Site included formulation, packaging, and distribution of inorganic and organochlorine pesticides and insecticides by the Sherwin-Williams from approximately 1929 to 1964 in the northern area of the former Shell Mound Park and production of iron oxide pigments

4

and mixing of other pigments by C. K. Williams & Co., Pfizer, Inc., Pfizer Pigments, Inc., Harcros Pigments, Inc. and Elementis Pigments, Inc., on the former Shell Mound Park area north of Temescal Creek, from 1929 through 1988.

1950s to the 1980s

Aerial photographs and Sanborn maps within the 1950 to 1980 timeframe indicate that land use at the Site has not significantly changed and is still being utilized for railroad spur tracks of the Southern Pacific Railroad. By 1969, some of the railroad tracks that crossed the Site were removed and an open culvert was constructed for Temescal Creek.

The area north of the northeastern boundary of the Site was occupied in the early 1950s by the Marchant Calculating Machine Company, Inc., which included, among other things, a supply room, a machine shop, a tool room, an assembling area, and an office. By the late 1960s, the Marchant facility had been replaced by a specialty tool factory.

Surrounding land uses to the east of the Site in the early 1950s include an electrical contractor warehouse, asbestos products warehouse, an office, laboratory and warehouse associated with Shell Development Company (“Shell”), and a paper and carton warehouse property of California Container Corporation. In the late 1960s, Shell had expanded to neighboring properties previously used as warehouses, and the paper and carton warehouse was owned by the Container Corporation of America (California Container Division) and included a repair shop.

Surrounding land uses to the west of the Site included the Southern Pacific railroad tracks, the formulation, packaging, and distribution of inorganic and organochlorine pesticides and insecticides by the Sherwin-Williams facility until approximately 1964, and production of iron oxide pigments and mixing of other pigments by C. K. Williams & Co., Pfizer, Inc., Pfizer Pigments, Inc., Harcros Pigments, Inc. and Elementis Pigments, Inc. through 1988.

In the 1969 and 1977 aerial photographs, a large above ground storage tank (“AST”) and a smaller structure associated with the Sherwin-Williams facility located south of the Site were present close to the property boundary south of the Temescal Creek Overflow. These structures were also present in the 1977 and 1982 aerial photographs. According to the Current Conditions Report for the Sherwin-Williams facility (LFR, 1998), the AST was used to store water .

1980s to the Present Day

Between the late 1980s and early 1990s, the northern area of the Site appears to have ceased to be used for railroad spur tracks. Part of the remnants of the railroad tracks in this area of the property were removed some time between 2003 and 2005. A parking lot was constructed north of Temescal Creek by the late 1990s. One set of old railroad tracks that go over Temescal Creek and come from the Sherwin- Williams facility that is located south of the Site are still in place. The tracks on the Sherwin-Williams facility are covered with pavement.

The former Rifkin Building, located to the east of the Site, was demolished between 2003 and 2005. Most of the area occupied by the former Rifkin Building was paved after the building had been demolished. The PDU Building was remodeled between 1977 and 1982. The building to the north of Building H was demolished in the 1990s. A parking structure and a parking lot were built in the early 2000s east of the Site on an area formerly occupied by a building and parking lots.

5

Production of iron oxide pigments and mixing of other pigments by C. K. Williams & Co., Pfizer, Inc., Pfizer Pigments, Inc., Harcros Pigments, Inc. and Elementis Pigments, Inc. continued through 1988. The Agency acquired this and other surrounding properties to the west of the Site between 1999 and 2000. Remedial actions were completed at these properties by 2001. Redevelopment and associated construction activities of these properties, now collectively called the Bay Street Project Area, began in 2001 and were completed by 2003. The Bay Street Project Area was developed as a mixed residential and commercial land use, composed of an urban residential development with a retail shopping mall, restaurants, cafes, a multiplex cinema, and parking facilities.

The Sherwin-Williams' AST located south of the Temescal Creek Overflow and other structures were removed in the late 1980s when the plant was converted to water-based paint products. The Sherwin- Williams property is vacant and most of the structures have been demolished, but groundwater extraction and treatment activities are currently being conducted.

5.3 Proposed Field Activities

The Agency is now planning soil excavation activities at the Site. The primary planned field activities for spring/summer 2010, on behalf of the Agency, include the following:

1. Observing soil excavation, backfilling of excavations, and waste loading and off-hauling activities as part of approved remedial actions;

2. Collecting environmental soil samples and preparing environmental samples for submittal to an analytical laboratory if additional soil sampling is deemed necessary. Additional soil sampling and characterization may be necessary for disposal of materials excavated from grid areas G and H of the Site or in the event that debris, visibly contaminated soil, or odorous soil is discovered during excavation activities.

5.4 Potential Physical Hazards

Potential physical hazards for EKI personnel, associated with operation of equipment by Contractor, include excessive noise associated with heavy machinery, confined spaces, falling debris, and vehicular traffic. Excessive heat can lead to heat stress or heat stroke, which are discussed below.

5.4.1 Operating Equipment

Potential physical hazards associated with operation of heavy equipment such as excavators, backhoes, and trucks by the Contractor or sub-contractors include:

• Noise;

• Moving parts of the equipment which may catch clothing or hair;

• High-pressure hydraulic lines that may be hazardous when incorrectly assembled or in ill-repair;

• Underground utilities and pipelines which can be ruptured or damaged;

• Moving heavy equipment over uneven terrain which may cause the vehicle to become unstable and roll or become stuck;

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• Lifting or moving heavy items such as buckets or drums; and

• Injury due to falling or tripping.

EKI employees must be aware of potential physical hazards associated with heavy equipment and electrical equipment in use during field operations. Precautions include the following:

• Hard-hat, steel-toe boots, and safety goggles or glasses will be worn during all field activities involving heavy equipment operation;

• Heavy work gloves will be worn when handling heavy equipment. Chemical resistant gloves will be worn when taking samples or handling sampling reagents;

• High visibility safety vests will be worn when working in areas where heavy equipment is operating;

• Personnel who operate machinery or are within 10 feet of operating gasoline or diesel powered equipment will wear approved hearing protection; and

• A first aid kit and cellular phone will be available at the Site.

Where excessive noise may be encountered, EKI employees will wear hearing protection such as earplugs or earmuffs (See section 5.4.2).

EKI employees and other field personnel should be aware of the presence of other Site personnel. The hazards related to the use of the specific heavy equipment on-Site will be reviewed during each health and safety meeting.

5.4.2 Noise

Work around heavy equipment always includes the possibility of excessive noise. Where excessive noise may be encountered, employees will be provided with hearing protection such as earplugs or earmuffs. Excessive noise can be readily indicated to the workers on-Site by difficulty in hearing verbal communication at approximately an arm’s length away. Additionally, EKI field personnel will measure noise levels at the start of excavation activities, at each location where EKI field personnel are present, using a Type 2 Sound Level Meter. If there is excessive noise in the EKI work area indicated by (a) difficulty in hearing verbal communication at approximately an arm’s length away or (b) noise levels in excess of 85 decibels (i.e., the California OSHA 8-hour time-weighted average permissible noise exposure sound level) measured using the Type 2 Sound Level Meter, hearing protection will be instituted as appropriate (see also the EKI CHSP).

5.4.3 Open Excavations and Confined Spaces

The Contractor will be removing soil using standard excavation techniques to an anticipated depth of 1 to 7 feet below ground surface, in accordance with an OSHA excavation permit obtained by the Contractor. The potential hazard of an excavation area collapsing or personnel falling into an open excavation exists during or after digging at any point prior to filling of an excavation. When working near excavations, EKI personnel will remain at least 2 feet away from sidewalls of excavations greater than 4 feet in depth. EKI personnel will not approach any area where the face of an open excavation is not appropriately sloped or shored for the on-Site soil conditions.

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EKI field personnel will not enter trenches or excavations that are greater than four feet in depth that may qualify as a confined space or any excavation that appears to present an indication of potential cave-in as determined by competent EKI field personnel or other competent representatives of the Agency such as the Resident Engineer or Geotechnical Engineer. EKI personnel will obtain assistance from the Contractor to acquire soil samples if needed, e.g., from backhoe bucket, without entering these excavations.

EKI field personnel may enter large excavation areas if the following criteria are met:

1. Excavation area does not qualify as a confined space. a. Excavation area has adequate ready ingress and egress, such as an access ramp. b. Excavation area does not contain a hazardous atmosphere or an oxygen deficient or enriched atmosphere. The atmosphere will be evaluated based on monitoring requirements outlined in Section 5.7.3. 2. If sidewalls of the excavation area are not shored, one of the following criteria must be met. a. EKI field personnel can maintain a safe distance from each sidewall that is equivalent to the height of the sidewall; or b. Stability of sidewall has been evaluated for the potential of cave-in or entrapment by competent EKI field personnel or other competent representatives of the Agency such as the Resident Engineer or Geotechnical Engineer. 3. Excavation area is relatively dry, i.e., free of accumulations of moisture that could destabilize soil and/or result in slippery or otherwise unsafe walking surfaces.

Prior to approaching excavation sidewalls within the safe distance, as defined above, the stability of the sidewall will be evaluated for the potential of cave-in or entrapment by competent EKI field personnel or other competent representatives of the Agency such as the Resident Engineer or Geotechnical Engineer. EKI personnel will obtain assistance from the Contractor to acquire soil samples if needed, e.g., from backhoe bucket, without approaching unstable sidewalls within the safe distance.

No confined space entry is anticipated for EKI personnel at the Site for the planned work activities. In addition, EKI personnel will not enter any confined space without advanced specific preparation, planning, training, and supervision by the EKI Corporate Safety Officer. However, if confined space entry becomes necessary, a specific confined space entry plan and health and safety plan amendment for that activity will be prepared under the supervision of the EKI Corporate Safety Officer before EKI personnel participate in such work. Additionally, if confined space entry by EKI personnel becomes necessary during excavation activities, a plan addressing the health and safety issues associated with working in confined spaces will be submitted to DTSC for review before any such entry is performed.

A confined space is defined as follows:

• Ventilation is inadequate to remove hazardous air contaminants, or an oxygen deficiency exists;

• Ready access or egress for removal of a suddenly disabled employee is difficult due to location or to the size of the opening into the space; and

• An atmosphere or other conditions exists that could cause death, injury, acute illness, or disablement.

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5.4.4 Traffic Hazards

Vehicular traffic is of concern to field personnel when conducting work in the street or other traffic corridors. Appropriate control measures for safely conducting work in the parking lot and/or directing traffic around the work area includes the following:

• Use of high visibility safety vests or other high visibility clothing for all personnel performing work in the street.

• Proper placement of appropriately labeled signs, in accordance with Caltrans specifications, indicating the presence of roadwork and changes to normal traffic pathways.

• Placement of safety cones or flashers in and approaching the work area to safely divert traffic around the work area.

• Use of a flagman to monitor and control the flow of traffic around the work area.

Although no work for the Site is planned to take place in the street, heavy equipment and truck traffic will be present on the Site during the project. The above measures will be implemented by the SSO, as appropriate, if EKI personnel are conducting work in on-Site traffic corridors. Additional safety protocols for working around heavy equipment that will be present on-Site for excavation are established in section 5.4.1.

5.4.5 Heat Stress

Adverse climatic conditions, primarily heat, are important considerations in planning and conducting Site operations. Heat stroke and stress are an associated concern. All on-Site personnel must be familiar with the symptoms of heat stress, and the conditions during which it may occur. The use of protective clothing greatly enhances the likelihood of heat stress. Preventative measures include the following:

• Frequent rest periods in the shade when heat and/or humidity are high;

• Drinking of fluids will be encouraged but should be done outside of any designated exclusion zone area (“EZ”); and

• Suitable acclimation periods will be provided for workers to gradually establish their resistance to heat stress.

Heat stress symptoms may include:

• Nausea, headache, lightheadedness, cramps, dizziness, clammy skin, lack of coordination, or slurred speech.

Heat stroke symptoms may include:

• Hot, dry skin; mental confusion; unconsciousness, and death.

HEAT STROKE IS LIFE THREATENING AND A MEDICAL EMERGENCY. SEEK EMERGENCY MEDICAL TREATMENT IMMEDIATELY (See section 6.0)

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Personnel exhibiting symptoms of heat stress will be removed from the work area, cooled using shade, cool water, and air movement, fluids will be administered, and the personnel will be observed. Personnel exhibiting symptoms of heat stroke will be immediately cooled and taken to the hospital.

Where Site conditions warrant, the SSO will monitor for heat stress and implement work/rest regimens, as described below.

At all times, EKI employees shall be provided access to potable drinking water, either from an available and easily accessible continuous source or a portable supply of at least one quart of water per employee per hour for the entirety of the shift. The EKI Site Safety Officer shall encourage the frequent drinking of water by EKI employees at the daily health and safety meeting conducted on Site.

Further, EKI shall provide access to a shaded area to EKI employees suffering from heat illness or believing a preventative recovery period (a period of time to recover from the heat in order to prevent the onset of heat illness) is needed. A shaded area is defined as a canopy, umbrella, or other temporary structure designed to provide shade. The shaded area shall be open to air or provided with a cooling ventilation system. Any employee needing access to a shaded area shall remain in that area for a period of at least 5 minutes, or until the employee feels adequately prepared to resume work and the EKI Site Safety Officer or Corporate Safety Officer agree that the employee is able to resume work activities.

At any time, an employee can indicate to the Site Safety Officer that he or she requires a recovery period. The Site Safety Officer may also direct an EKI employee to take a recovery period if he or she deems such an action necessary. Any employee requiring a recovery period shall be escorted to the designated shaded recovery area. The designated shaded area shall be within visual range of the Site so that the employee’s condition may be continually monitored. An employee may be referred for medical attention if the symptoms of heat illness persist for longer than 15 minutes or if an employee requires more than two recovery breaks in one 8-hour shift. Preventative recovery periods will not count towards the two recovery breaks that may lead to a referral for medical attention.

EKI shall provide Site specific training regarding heat illness to all supervisory and non-supervisory employees working on Site. The training will include, but will not be limited to, the following:

• The environmental and personal risk factors for heat illness. • Procedures for complying with the requirements of the heat stress standard. • The importance of frequent consumption of small quantities of water, up to 4 cups per hour, under extreme conditions of work and heat. • The importance of acclimatization. • The different types of heat illness and the common signs and symptoms of heat illness. • The importance of immediately reporting to one’s supervisor symptoms or signs of heat illness in themselves or in co-workers. • The Site procedures for providing first aid to respond to a heat illness, and the emergency procedures in place for contacting medical service providers.

5.4.6 Underground and Overhead Utilities

Prior to the initiation of fieldwork, the excavation area will be cleared by the Contractor by contacting Underground Services Alert (“USA”) at least two days in advance of work and by retaining a private utility locating company.

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5.4.7 Fire Protection

The SSO or designated representative will verify that construction vehicles within work area will contain fire extinguishers as required by OSHA regulations. Additionally, 10-pound type ABC fire extinguishers will be located within the immediate work area so that the maximum distance to a fire extinguisher does not exceed 75 feet.

5.5 Potential Chemical Hazards

EKI conducted focused environmental investigations at the Site in 2002 and 2009 (EKI, 2002, 2003, and 2009b). Types of chemicals detected in soil and/or groundwater samples obtained at the Site include petroleum hydrocarbons, volatile organic compounds (“VOCs”), semi-volatile organic compounds (“SVOCs”) including polycyclic aromatic hydrocarbons (“PAHs”), polychlorinated biphenyls (“PCBs”), organochloride pesticides, and heavy metals. These types of chemicals may have originated from artificial fill material imported to the Site, reported former activities at the Site such as application of arsenic-based herbicides to the railroad tracks, and industrial land uses in the vicinity of the Site.

Tables 1 and 2 contain available information on all chemicals that were detected in soil or groundwater samples collected from the Site during previous environmental investigations (EKI, 2002, 2003, and 2009b). The maximum concentrations of the chemicals detected in soil and groundwater samples obtained on the Site are listed in Table 1. Allowable occupational chemical exposure limits and exposure symptoms for these compounds are listed in Table 2.

Note that the State of California has determined that arsenic, lead, cadmium, PCBs, and other compounds listed in Table 2 are human carcinogens or reproductive toxins. The following notice is presented to personnel who may have access to the Site as a result of the planned remediation activities and who are required to read and acknowledge this health and safety plan.

WARNING: This area contains chemicals known to the State of California to cause cancer and/or reproductive harm.

5.5.1 Potential Exposures and Health Hazards

The primary modes of possible exposure of Site personnel to hazardous chemicals during this project are through inhalation of vapors or dust and through skin contact with contaminated groundwater, soil, sediments, or surface water. Ingestion of soil (e.g., from contamination on hands, face, food, or drink) is also possible. Common symptoms of chemicals of potential concern (“COPCs”) (see below) are reported by the Centers for Disease Control and Prevention in the National Institute for Occupational Safety and Health (NIOSH) Pocket Guide to Chemical Hazards, dated September 2005.

Metals: The primary modes of possible exposure to metals during this project are through inhalation of airborne particulates containing metals and through ingestion of contaminants in groundwater, soil, sediments, or surface water. Common symptoms of exposure to metals at elevated concentrations include irritation of eyes and the respiratory system, headaches, nausea, dizziness, and fatigue. Symptoms of exposure to arsenic, cadmium, and lead are summarized below. Symptoms of exposure for other individual metals are given in Table 2.

Arsenic: The primary modes of possible exposure to arsenic during this project are through inhalation of airborne particulates containing arsenic and through ingestion due to contact with contaminated groundwater, soil, sediments, or surface water. Ingestion is usually minimized through personal hygiene

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practices. Common symptoms of exposure to arsenic at elevated concentrations include ulceration of nasal septum, dermatitis, gastrointestinal disturbances, peripheral neuropathy, respiratory irritation and hyperpigmentation of skin. Arsenic is also considered as a potential occupational carcinogen.

Cadmium: The primary modes of possible exposure to cadmium during this project are through inhalation of airborne particulates containing cadmium and through ingestion due to contact with contaminated groundwater, soil, sediments, or surface water. Ingestion is usually minimized through personal hygiene practices. Common symptoms of exposure to cadmium at elevated concentrations include coughing, chest tightness, headache, chills, muscle aches, nausea, vomiting, diarrhea, anosmia, and mild anemia. Cadmium is also considered as a potential occupational carcinogen and developmental and reproductive toxicant.

Lead: The primary modes of possible exposure to lead during this project are through inhalation of airborne particulates containing lead and through ingestion due to contact with contaminated groundwater, soil, sediments, or surface water. Common symptoms of exposure to lead at elevated concentrations include weakness, lassitude, insomnia, constipation, muscle tremors, and paralysis. Long- term overexposure to lead can affect the blood, kidneys, nervous system and reproductive system.

VOCs: VOCs have been detected in grab groundwater samples collected from the Site, which are believed to have migrated on-Site from off-Site sources related to industrial uses in the Site vicinity (EKI, 2009a). Therefore, there exists the potential for exposure to VOCs in groundwater. Additionally, organic vapors associated with volatile components of petroleum hydrocarbons detected at the Site may be released during excavation. The primary modes of possible exposure to VOCs during this project are through inhalation of vapors and through skin contact with contaminated groundwater, soil, sediments, or surface water. Common symptoms of exposure to VOCs at elevated concentrations include irritation of eyes and the respiratory system, headaches, nausea, dizziness, and fatigue, and VOCs may cause contact dermatitis. Certain VOCs such as benzene, tetrachloroethene (“PCE”), trichloroethene (“TCE”), and vinyl chloride may affect the liver, blood, and/or other systems and may be carcinogenic. Symptoms of exposure for individual VOCs are given in Table 2.

SVOCs: The primary modes of possible exposure to SVOCs during this project are through inhalation of vapors and through skin contact with contaminated groundwater, soil, sediment, or surface water. Common symptoms of exposure to SVOCs at elevated concentrations include irritation of eyes, nose, and throat, headache, nausea, and dizziness, and SVOCs may cause contact dermatitis. Certain SVOCs may be carcinogenic, including chrysene and benzo(a)pyrene. Symptoms of exposure for individual SVOCs are given in Table 2.

PCBs: The primary modes of possible exposure to PCBs during this project are through inhalation of airborne particulate matter containing PCBs and through ingestion due to contact with contaminated groundwater, soil, sediment, and surface water. Ingestion is usually minimized through personal hygiene practices. Common symptoms of exposure to PCBs at elevated concentrations include irritation of eyes, chloracne, liver damage, and reproductive effects, and PCBs may cause contact dermatitis. PCBs are also considered as potential occupational carcinogens.

Organochloride Pesticides: The primary modes of possible exposure to organochloride pesticides during this project are through inhalation of airborne particulate matter containing organochloride pesticides, contact with contaminated groundwater, soil, sediment, and surface water, and through ingestion due to contact with contaminated groundwater, soil, sediment and surface water. Ingestion is usually minimized through personal hygiene practices. Common symptoms of exposure to organochloride pesticides at

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elevated concentrations include irritation of eyes and skin, and dizziness. Organochloride pesticides may also cause contact dermatitis and are considered as potential occupational carcinogens.

Petroleum Hydrocarbon Compounds: The primary mode of possible exposure to petroleum hydrocarbons during this project are through inhalation of vapors and through skin contact with contaminated groundwater, soil, sediments, or surface water. Common symptoms of exposure to petroleum hydrocarbons at elevated concentrations include irritation of eyes and the respiratory system, headaches, nausea, dizziness, and fatigue. Petroleum hydrocarbons may also cause contact dermatitis. Symptoms of exposure for individual petroleum hydrocarbons are given in Table 2.

5.5.2 Exposure Minimization

EKI field personnel will minimize potential exposure to chemical hazards by avoiding direct contact with groundwater, surface water, and soil through the use of protective equipment. Safe work practices, including restriction of eating, drinking, or smoking in the work areas and use of personal hygiene measures will also be enforced at the work Site to minimize potential contact and ingestion of soil. Workers will wash thoroughly after removal of their personal protective equipment (“PPE”) and prior to breaks and end-of-shift Respiratory protection and other PPE are discussed in Section 5.7.1

Excavation activities conducted by Contractor(s) may generate dust. The Contractor will be contractually obligated to control dust while working at the Site through measures including:

• Keeping vehicle speeds below 5 miles per hour; • Watering exposed soil to prevent formation of dust while excavating, handling soil on-Site or loading transportation vehicles; • Spraying exposed odorous soil with an odor suppressant to prevent nuisance odors while excavating, handling soil on-Site or loading transportation vehicles; • Controlling excavation activities and rates to minimize the generation of dust; and • Covering soil stockpiles with plastic sheeting.

Due to the potential presence of VOCs in impacted soil and groundwater, EKI personnel will use a direct- reading organic vapor meter (“OVM”) to monitor for airborne VOCs before opening bins containing excavated soil or entering on-Site depressions in the ground surface. Based on the results of this monitoring, PPE will be adjusted as necessary using the protocol established in Section 5.7.

5.6 Exposure Hazard Analysis

Particulate and vapor emissions are possible during the planned field activities (see Section 5.5.2). However, due to dust and volatilization control measures to be implemented by the Contractor (see Section 5.5.2), on-Site worker exposure to chemicals at airborne concentrations of concern, i.e., above the exposure limits listed in Table 2, is not expected. Adherence to the criteria as described in Section 5.5 is designed to protect human health through administrative controls and safe work practices.

Potential exposure to the surrounding community will likely be much less than potential on-Site worker exposure, and therefore, is also not expected to reach levels of concern. EKI will conduct perimeter air quality monitoring as described in Appendix E of the Draft Site Cleanup Plan (“SCP”) (EKI, 2010). In accordance with the Contract Documents, the Contractor will implement elements of its Dust Control Plan, or suspend work, as necessary to protect the local community.

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5.7 Protective Measures

5.7.1 Personal Protective Equipment

EKI field personnel will wear equipment to protect against the potential physical and chemical hazards that have been identified herein and those that become apparent in the field. Level D personal protection will be required, at a minimum, by the SSO or FSSO for all field activities at the Site. Level D personal protective equipment includes:

• Hard hat; • Coveralls (Tyvek or cotton coveralls); • Chemical resistant disposable gloves (nitrile); • Boots, steel toe and shank; and • Safety glasses (and earplugs near operating equipment).

The level of protection employed for general Site activities by EKI personnel may be upgraded, as deemed necessary by the SSO or FSSO. If significant airborne dust generation occurs or organic vapors are detected in EKI work areas (see Monitoring section below), the SSO or FSSO may require modified Level C protection, which includes:

• Respiratory protection consisting of a half-face or full-face air purifying respirator with organic vapor cartridges and/or HEPA / P-100 particulate filters, • Use of Tyvek coveralls, and • Protective equipment and clothing specified for Level D (above).

EKI utilizes standardized procedures for respirator fit testing and equipment calibration. These procedures are described in the EKI CHSP (EKI, 2005).

5.7.2 Site Control Measures and Work Zones

No specific exclusion and decontamination zones will be required for activities where only Level D PPE is required. The active Level D work area(s) will be marked with fencing, posting, cones and/or barrier tape. All visitors to the Site who enter the defined work areas will be requested to sign the daily log maintained by EKI and will be advised of the potential health hazards associated with the environmental investigations (Attachment A-1). The SSO or FSSO will direct all non-essential and non-certified personnel to remain outside the active work areas or in the support zone, as noted below.

For any field activity requiring Level D protection or higher, specified work zones for EKI personnel, consisting of an exclusion zone (“EZ”), a contamination reduction zone (“CRZ”), and a support zone, will be established by the SSO of FSSO. All Health and Safety protocols outlined in this HSP will be observed within the EZ and CRZ, as applicable. Communications will generally be verbal or by hand signal given the expected small size of most work zones.

Additionally, specified work zones, including designation of an exclusion zone, a contamination reduction zone, and a support zone may be established as needed by the Contractor during soil excavation activities in accordance with its respective health and safety plan. The Contractor will be required to control entry to such zones and will be responsible for directing all non-essential and non-qualified personnel to remain in the Support Zone. Qualified personnel are those who are “HAZWOP-certified”(as specified in Section 5.10) or have equivalent professional training and experience (e.g., are trained and experienced industrial hygienists) as allowed under Title 8 CCR 5192. EKI personnel will comply with

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the protocols established for the Contractor’s work zones, in particular, if the protocols are more stringent than those outline in this HSP for EKI personnel.

5.7.3 Exposure Monitoring and Control Measures

The Perimeter Air Monitoring Plan (“AMP”) in Appendix E of the SCP (EKI, 2010) describes the perimeter air monitoring program planned for implementation during the removal action at the Site. Work zone air monitoring to be performed for EKI personnel working at the Site is described below.

5.7.3.1 Visible Dust

EKI field personnel will look for the presence of visible dust clouds, e.g., a concentration of approximately 1 mg/m3 is typically visible. If sustained, visible dust clouds are observed in an EKI work area or threatening an EKI work area, EKI’s field activities will be suspended, and EKI personnel and EKI subcontractors will withdraw from the work area to allow evaluation of appropriate corrective measures to control visible dust. As stated in the AMP, field activities will be suspended and dust control measures will be re-evaluated if dust from a work area is detected during perimeter air monitoring at or above 1 mg/m3, 5-minute time weighted average.

If visible dust results from work performed by the Contractor cannot effectively be controlled by the Contractor, then Level C protection (half-face or full-face air purifying respirators fitted with HEPA / P-100 particulate filter cartridges) will be required for EKI personnel within the EKI work area until such time as airborne dust levels are reduced. Arrangements will be made by the SSO or FSSO for collection of personal breathing zone air samples on selected EKI personnel to document airborne dust concentrations whenever Level C protection is required. The respirator cartridge changeout frequency, as described below, will also be re-assessed based upon the results of the air samples.

In addition, perimeter dust monitoring using direct-reading, data logging aerosol monitoring or personal data aerosol monitors will also be performed by EKI or EKI subcontractors. See the AMP presented in Appendix E of the SCP for more details regarding perimeter dust monitoring.

5.7.3.2 Airborne Metals (Lead and Arsenic)

Of the metals detected in soil and groundwater, lead and arsenic were found to be present at the most significant concentrations with respect to hazardous waste limits. Soil excavation and loading activities may generate dust and result in detectable airborne lead and arsenic concentrations in the vicinity of such work areas. However, the airborne concentrations of lead, arsenic and other metals in the breathing zone of on-Site workers are not likely to approach or exceed the applicable action levels and permissible exposure limits, including the action levels for lead (0.03 milligrams per cubic meter (“mg/m3”); CCR Title 8, Section 1532.1) and arsenic (0.005 mg/m3; CCR Title 8, Section 5214). This conclusion is based on assuming a total airborne dust level of 1 mg/ m3, corresponding to the presence of clearly visible dust, and on calculations using the maximum detected concentrations in soil at the Site for lead (744 milligrams per kilogram (“mg/kg”)) and arsenic (190 mg/kg), respectively, as indicated below:

• Maximum expected dust concentration in air times the maximum detected concentration of lead in soil equals the maximum expected concentration of lead in air, as follows:

(1 mg/m3)* (744 mg/kg) * (10-6 kg/mg) = 0.000744 mg/m3

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• Maximum expected dust concentration in air times the maximum detected concentration of arsenic in soil equals the maximum expected concentration of arsenic in air, as follows:

(1 mg/m3)* (190 mg/kg) * (10-6 kg/mg) = 0.00019 mg/m3

Thus, the maximum calculated concentrations in air for lead (0.000744 mg/m3) and arsenic (0.00019 mg/m3) are significantly less than the lead and arsenic airborne Action Levels of 0.03 mg/m3 and 0.005 mg/m3, respectively. Further, these airborne concentrations are likely to be over-estimated due to implementation of dust control measures to minimize work in areas with visible dust as noted below.

First, it should be noted that these concentrations of lead and arsenic estimated in air were calculated using the maximum concentration of lead and arsenic detected in soil at the Site. Site-wide average concentrations are expected to be lower. Therefore, these estimated maximum airborne lead and arsenic concentrations are significantly higher than the expected time-weighted, average airborne lead and arsenic concentrations that would be calculated using the average lead and arsenic concentrations in soil samples collected at the Site.

Second, this calculation assumes a sustained airborne dust concentration of 1 mg/m3 in the breathing zone of EKI personnel, e.g., work zone conditions at which a dust cloud would be plainly visible. In accordance with this HSP, EKI field personnel will be instructed to observe and avoid visible dust clouds and will withdraw from, or utilize Level C personal protective equipment including air purifying respirators with particulate filters, in those EKI work areas where visible dust clouds are present and persist, as described above. Such responses to significant, observable airborne dust will ensure that EKI personnel exposures to arsenic and lead remain below the Action Levels for arsenic and lead. Perimeter air monitoring for arsenic and lead will also be implemented as discussed in the Appendix E of the SCP (EKI, 2010).

In accordance with CCR, Title 8, Section 1532.1 for lead and Section 5214 for arsenic, half-mask respirators with HEPA/P100 cartridges may be used for airborne concentrations of inorganic arsenic up to 0.1 milligram per cubic meter (mg/m3) and lead up to 0.5 mg/m3. Full-face respirators with HEPA/P100 cartridges that are quantitatively fit-tested may be used for airborne concentrations of inorganic arsenic up to 0.5 mg/m3 and lead up to 2.5 mg/m3. Given the level of dust control efforts specified for use during construction (EKI, 2010) and the fact that EKI personnel will remain outside of the active excavation areas, the breathing zone inorganic arsenic and lead concentrations, as calculated above, are not expected to approach or exceed the air purifying respirator maximum use concentrations during either typical or worst case exposure conditions at the Site. Respirator cartridges shall be changed out at least daily, or sooner, if breathing resistance is increased due to dust loading on the cartridge.

5.7.3.3 Airborne Petroleum Hydrocarbons and VOCs

Field personnel will perform air monitoring routinely with a direct reading OVM in or around the breathing zone of EKI workers in each EKI work area during the planned on-site activities. The SSO or FSSO will verify that all instruments are operating correctly before they are brought to the Site and are calibrated in the office or at the Site before work starts at the Site each day. All calibration readings (i.e., zero and span measurements, and measurements of calibration gas and its concentration) and field readings within EKI work zones will be recorded in the field log. Background OVM field measurements will be made at the start of the work period and at least once later each day at a nearby location, preferably up wind from the current work area. Work area measurements will be made whenever a new EKI work area is established and periodically throughout the workday thereafter.

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An OVM has a typical detection limit of 0.1 parts per million by volume (“ppmv”) above background levels and does not provide measurements of airborne concentrations for individual volatile organic compounds. If detectable, sustained organic vapors (i.e., consistent readings greater than 5 ppmv over ambient background) are measured by the OVM within the breathing zone of a particular EKI work area, EKI field activities will be suspended. EKI personnel will withdraw from the work area until appropriate corrective measures can be initiated by the Contractor. If the organic vapors result from subsurface investigative work or other activities performed by EKI personnel, any exposed soil generated within the EKI work area will be covered with plastic sheeting to minimize further volatilization. EKI’s field activities will remain suspended in such EKI work areas until the source of the organic vapor emission is identified and the source is controlled.

If organic vapor concentrations measured on the OVM cannot be effectively reduced to below 5 ppmv above background using engineering controls discussed above or any measures employed by the Contractor, then Level C respiratory protection (half-face or full-face respirators fitted with organic and particulate filter cartridges) will be required for EKI personnel within the EKI work area (see Personal Protective Equipment section). If air-purifying respirators are required, organic vapor cartridges will be changed at least once daily1 or whenever breakthrough is detected by odor, irritation, or other acute effects noted by EKI personnel. This cartridge changeout schedule is determined to be sufficiently conservative for the Site, on the basis of available information of the concentrations of volatile organic chemicals detected in soil at the Site and anticipated concentrations of organic vapors in air. If OVM readings continuously exceed 5 ppmv above background within an EKI work area, results of air sampling will be used by the SSO or FSSO as input parameters to the software for estimating cartridge service life for the air-purifying respirators in use to re-assess these organic vapor filter cartridge changeout schedules. Arrangements will be made by the SSO or FSSO for personal breathing zone air samples to be collected to document breathing zone organic vapor concentrations if Level C protection is being used by EKI personnel. The respirator cartridge changeout frequency will also be re-assessed based upon available results of breathing zone air samples.

If OVM readings continuously exceed 10 ppmv above background in the breathing zone while workers are in Level C protection, then EKI field activities will cease, and appropriate corrective measures will be initiated by the Contractor. During this time, any exposed soil in the EKI work area will be covered with plastic sheeting to minimize further volatilization. The organic vapor 10 ppmv above background Action Level for work suspension is based on standard EKI work zone practices.

5.8 Decontamination Procedures

5.8.1 Vehicles and Large Equipment

The decontamination process, to be implemented by the Contractor, will include the removal of accumulated dirt and other contamination from the vehicles and equipment while said vehicles and equipment remain in the established decontamination zones and before exiting to support zones or public streets. In accordance with the Decontamination Plan in the SCP (EKI, 2010), a decontamination pad will be provided by the Contractor for its vehicle and equipment cleaning, and decontamination methods for vehicles and equipment will, at a minimum, consist of brushing, vacuuming, steam cleaning, and/or high-

1 The estimated service life of the vapor filter cartridges was assessed for the primary VOCs detected in soil groundwater at the Site (i.e., those chemicals present at the highest concentrations that are likely to control the cartridge lifetime) using the North Safety Products “esLifeTM EZ Service Life Estimation Table” and the 3M Service Life Software, Version 4. The service life was evaluated for a presumed continuous vapor concentration of 10 ppmv.

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pressure washing. Vehicles operated by EKI or EKI subcontractors within any established EZ or CRZ at the Site will be decontaminated, as needed, consistent with the requirements of the Contractor.

5.8.2 Personnel and Tools/Small Equipment

Personal Level D decontamination procedures to be used by EKI personnel and EKI subcontractors will include:

• Removal of disposable personal protective equipment, such as booties, gloves, or coveralls and disposal of these items in containers placed in the decontamination area; • Washing of the hands and face by all EKI personnel and EKI subcontractors before eating, drinking, smoking, using the restroom, or leaving the Site; and • Brush cleaning or washing with deionized water and Alconox solution of small equipment and tools used in EKI work areas.

If Modified Level C personal protection is required for EKI personnel, minimum decontamination procedures associated with Level C protection will be established and followed within the CRZ. These procedures are the same for Level D, but also include the following:

• Removal of proper personal protection equipment followed by removal of the air purifying respirator; • Decontamination procedures (as described above) and preliminary respirator cleaning using moistened, disposable “wipes”; • Washing of boots and equipment prior to leaving the CRZ, and • Bagging and disposal of respirator cartridges and personal protection equipment at the end of each day.

If an injury occurs to personnel who are in Level C protection, personnel decontamination procedures will be followed to the extent reasonable based upon the nature of the injury. Alta Bates Medical Center, the designated emergency facility in Section 6.0, is equipped to deal with chemical exposures and contamination issues. Prior to treatment, emergency room personnel will be warned, if there is possible contamination present on an injured person.

5.9 Spill Containment

Planned excavation at the Site is limited to shallow soil (i.e., approximately 1 to 7 feet below ground surface); therefore, groundwater will not be encountered during remedial work. Water to be used or handled on-Site includes decontamination water and water used for dust suppression purposes. The quantities of water to be handled are low, i.e., a maximum of 55-gallons in any one container. If a spill were to occur, the water would be contained with absorbent materials. After containment, the fluids and absorbent materials would be recovered and put in 55-gallon drums for appropriate disposal. PPE requirements are expected to be the same as those required for the work activities. Due to the limited potential for spills and the nature of materials likely to spill, the 40-hour basic and annual 8-hour refresher hazardous waste operations (“HAZWOPER”) training specified in 8 CCR Section 5192 are considered adequate for the Site conditions.

5.10 Training and Safety Meetings

All EKI employees working at the Site will have appropriate prior experience and training in compliance with 29 CFR 1910.120 et seq. and 8 CCR 5192. Training will include 40-hour basic HAZWOPER

18

training, three days of supervised field experience, and an annual 8-hour refresher training, plus 8-hour supervisory training as appropriate for EKI field personnel. In addition, all EKI employees working at the Site will be training in the contents, provisions and requirements of this SHSP.

On-Site tailgate safety meetings, conducted by the SSO or FSSO, will be held at the start of each work day for EKI personnel to review health and safety issues, protective equipment, emergency information and supplies, and to discuss special topics (See Attachment A-1). These safety meetings will be documented as part of the daily documentation for the Site and participants in the daily meeting will sign a log acknowledging their attendance.

5.11 Medical Surveillance

EKI employees participating in field activities are included in a medical monitoring program in accordance with the EKI Corporate Health and Safety Program. The program meets the requirements of Title 8, 5192, f(3)A. Medical exams are given:

• Prior to assignment;

• Annually;

• On a periodic basis as determined necessary by the examining physician;

• At termination of employment; and

• As soon as feasible following a high exposure episode or when an employee experiences symptoms potentially attributable to a work exposure.

Details of the medical program are provided in EKI's Corporate Health and Safety Program.

5.12 Site Facilities

The Contractor will be providing a portable restroom and hygiene / decontamination facilities at the Site. EKI personnel and subcontractors engaged in field activities at the Site shall not exit the active work areas of the Site unless proper decontamination has occurred. EKI will furnish drinking water for its personnel as discussed above in Section 5.4.5 on Heat Stress.

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6.0 EMERGENCY RESPONSE PLAN

The nature of work at the job Site makes fire and medical emergencies a continual possibility. The EKI SSO and FSSO will be familiar with emergency procedures and evacuation routes (Figure 2). A first aid kit and emergency wash water will be readily available.

In the event of a fire not readily extinguishable through the use of fire extinguishers, the area will be evacuated and the local fire department will be notified.

No significant chemical emissions that may result in acute exposure are anticipated at the Site. If an unanticipated or suspected chemical exposure or a physical injury occurs due to an accident, the SSO will be immediately notified so appropriate first aid can begin and medical attention arranged, if necessary. The SSO will investigate the nature and cause of the accident so that work procedures can be modified to minimize the likelihood of the incident's recurrence. The SSO will assist in preparation of required reports of injury or illness as required by regulations and the EKI Injury and Illness Prevention Program (“IIPP”).

Emergency telephone numbers are given in Table 3. Routine and emergency communication will be provided through the EKI mobile telephone. If the mobile telephone is slow to connect to 911, the local fire department should be contacted directly. When representatives of the fire department arrive, the SSO or designated representative will advise the commanding officer of the location, nature, and identification of hazardous materials on-Site. Routine and emergency communication will be provided through the EKI mobile telephone. For emergencies not requiring an ambulance, injured personnel will be transported to the Alta Bates Hospital (Figure 2). The Alta Bates Hospital is prepared to deal with chemical exposure patients.

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7.0 GENERAL WORK RULES

Do not eat, drink, or smoke in any work area.

* Wash hands and face before eating, drinking, or smoking.

* Minimize skin contact with soil or groundwater.

* Chemical protective gloves must be worn when handling contaminated or potentially contaminated materials.

* If any electrically powered equipment is used on-Site, it must be explosion-proof where explosion hazard exists and utilize a ground-fault interrupter approved for outdoor use.

* Eye protection is required when engaged in or observing mechanical work.

* Used personal protective clothing, e.g., gloves and Tyvek, shall be disposed of by placing them in a designated container.

* Wash contaminated equipment before removing it from the Site or place contaminated equipment in plastic bags for later decontamination.

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8.0 REFERENCES

EKI, 2002. Draft Summary of Soil and Groundwater Sampling Conducted in the Vicinity of Proposed Building13 and Horton Street Landing Linear Park, Chiron Corporation, Emeryville, California, Erler & Kalinowski, Inc., 17 December 2002.

EKI, 2003. Summary of Soil and Groundwater Sampling Conducted in the Vicinity of Proposed Horton Street Landing Linear Park, Chiron Corporation, Emeryville, California, Erler & Kalinowski, Inc., 2 May 2003.

EKI, 2005. Corporate Health and Safety Program, Erler & Kalinowski, Inc., 1870 Ogden Drive, Burlingame, California, November 2005.

EKI, 2009a. Site Use History, Horton Street Landing, Emeryville, California, Erler & Kalinowski, Inc., 24 February 2009.

EKI, 2009b. Soil and Groundwater Investigation Data Summary, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., 20 July 2009.

EKI, 2010. Site Cleanup Plan, Horton Landing Park, Emeryville, California, Erler & Kalinowski, Inc., March 2010.

LFR, 1998. Current Conditions Report, Sherwin-Williams Facility, Emeryville, California, Levine-Frickle- Recon, Inc., 19 June 1998.

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TABLE 1 Maximum Concentrations of Chemicals Detected in Soil and Groundwater Horton Landing Park Emeryville, California

Maximum Concentrations in Maximum Concentrations in Detected Chemicals (a) Groundwater Soil (ug/L) (mg/kg) Volatile Organic Compounds Benzene ND 0.00388 1,2-Dichloroethane 60.7 ND cis-1,2-Dichloroethene 60.9 ND trans-1,2-Dichloroethene 1.17 ND 1,2-Dichloropropane 1,190 ND Tertiary Butyl Alcohol 1,750 ND Tetrachloroethene ND 0.0028 Toluene 0.93 0.0113 Trichloroethene 3,610 0.0218 1,2,3-Trichloropropane 1,890 0.0306 Vinyl chloride 26.6 ND Xylenes, m & p 0.53 ND Semivolatile Organic Compounds Bis(2-ethylhexyl)phthalate -- 0.905 Chrysene -- 1.78 Fluoranthene -- 5.09 Pyrene -- 7.11 Polychlorinated Biphenyl Compounds PCB-1260 -- 0.752 Organochlorine Pesticide Compounds DDD -- 1.37 DDE -- 0.456 DDT -- 1.53 Dieldrin -- 0.589 Total Petroleum Hydrocarbons TPH-g 2,090 ND TPH-d 206 1,380 TPH-mo ND 364 Oil and Grease -- 8,520 Metals Arsenic 3.15 190 Barium 178 1,020 Cadmium 2.6 7.12 Chromium, total 6.69 73.7 Cobalt 28 28.8 Copper 23.9 416 Lead ND 744 Mercury ND 2.74 Molybdenum 11.1 8.99 Nickel 144 129.0 Selenium 3.94 ND Vanadium 4.48 63.7 Zinc 14.3 1,060

Erler & Kalinowski, Inc. EKI A90007.00 Page 1 of 2 March 2010 TABLE 1 Maximum Concentrations of Chemicals Detected in Soil and Groundwater Horton Landing Park Emeryville, California

Abbreviations: "--" = not analyzed ND = not detected TPH-g = total petroleum hydrocarbons as gasoline TPH-d = total petroleum hydrocarbons as diesel TPH-mo = Total Petroleum Hydrocarbons as motor oil ug/L = micrograms per liter mg/kg = milligrams per kilogram

Notes: (a) List of detected chemicals from Analysis of Brownfields Cleanup Alternatives, Horton Landing Park, Emeryville , California, prepared by Erler & Kalinowski, Inc., 25 March 2009 and from Soil and Groundwater Investigation Data Report , Horton Landing Park, Emeryville, California, prepared by Erler & Kalinowski, Inc., 20 July 2009.

Erler & Kalinowski, Inc. EKI A90007.00 Page 2 of 2 March 2010 TABLE 2 Allowable Chemical Exposure Limits and Exposure Symptoms Horton Landing Park Emeryville, California

Cal/OSHA ACGIH Airborne (a) (f) (f) (f) Detected Chemicals Action ROUTE OF ENTRY ACUTE EXPOSURE SYMPTOMS TARGET ORGANS (b) (c) (d) (e) Level PEL-TWA PEL-STEL Ceiling TLV-TWA TLV-STEL Units Volatile Organic Compounds Benzene 0.5 1 5 NL 0.5 2.5 ppmv Inhalation, skin Irritation eyes, skin, nose, respiratory system; dizziness; Eyes, skin, respiratory system, blood, T8 CCR 5218 absorption, ingestion, headache, nausea, staggered gait; anorexia, lassitude central nervous system, bone marrow skin and/or eye contact (weakness, exhaustion); dermatitis; bone marrow depression; [potential occupational carcinogen] 1,2-Dichloroethane NL 1 2 200 10 NL ppmv Inhalation, ingestion, skin Irritation eyes, corneal opacity; central nervous system Eyes, skin, kidneys, liver, central nervous (ethylene dichloride) absorption, skin and/or depression; nausea, vomiting; dermatitis; liver, kidney, system, cardiovascular system eye contact cardiovascular system damage; [potential occupational carcinogen] cis-1,2-Dichloroethene NL200 NL NL 200 NL ppmv Inhalation, ingestion, skin Irritation eyes, respiratory system; central nervous system Eyes, respiratory system, central nervous trans-1,2-Dichlorethene and/or eye contact depression system 1,2-Dichloropropane NL 75 110 NL 10 NL ppmv Inhalation, skin Irritation eyes, skin, respiratory system; drowsiness, dizziness; Eyes, skin, respiratory system, liver, (propylene dichloride) absorption, ingestion, liver, kidney damage; in animals: central nervous system kidneys, central nervous system skin and/or eye contact depression; [potential occupational carcinogen] Tert-Butyl Alcohol NL 100 150 NL 100 NL ppmv Inhalation, ingestion, skin Irritation eyes, skin, nose, throat; drowsiness, narcosis Eyes, skin, respiratory system, central (tert-butanol) and/or eye contact nervous system Tetrachloroethene NL 25 100 500 25 100 ppmv Inhalation, skin Irritation eyes, skin, nose, throat, respiratory system; nausea; Eyes, skin, respiratory system, liver, (perchloroethylene) absorption, ingestion, flush face, neck; dizziness, incoordination; headache, kidneys, central nervous system skin and/or eye contact drowsiness; skin erythema (skin redness); liver damage; [potential occupational carcinogen] Toluene NL 50 150 500 20 NL ppmv Inhalation, skin Irritation eyes, nose; lassitude (weakness, exhaustion), Eyes, skin, respiratory system, central absorption, ingestion, confusion, euphoria, dizziness, headache; dilated pupils, nervous system, liver, kidneys skin and/or eye contact lacrimation (discharge of tears); anxiety, muscle fatigue, insomnia; paresthesia; dermatitis; liver, kidney damage Trichloroethene NL 25 100 300 10 25 ppmv Inhalation, skin Irritation eyes, skin; headache, visual disturbance, lassitude Eyes, skin, respiratory system, heart, liver, absorption, ingestion, (weakness, exhaustion), dizziness, tremor, drowsiness, nausea, kidneys, central nervous system skin and/or eye contact vomiting; dermatitis; cardiac arrhythmias, paresthesia; liver injury; [potential occupational carcinogen]

1,2,3-Trichloropropane NL 10 NL NL 10 NL ppmv Inhalation, skin Irritation eyes, nose, throat; central nervous system depression; Eyes, skin, respiratory system, central absorption, ingestion, in animals: liver, kidney injury; [potential occupational nervous system, liver, kidneys skin and/or eye contact carcinogen]

Vinyl chloride 0.5 1 NL NL 1 NL ppmv Inhalation, skin, and/or Lassitude (weakness, exhaustion); abdominal pain, Liver, central nervous system, blood, T8 CCR 5210 eye contact (liquid) gastrointestinal bleeding; enlarged liver; pallor or cyanosis of respiratory system, lymphatic system extremities; liquid: frostbite; [potential occupational carcinogen] Xylenes NL 100 150 300 100 150 ppmv Inhalation, skin Irritation eyes, skin, nose, throat; dizziness, excitement, Eyes, skin, respiratory system, central absorption, ingestion, drowsiness, incoordination, staggering gait; corneal nervous system, gastrointestinal tract, skin and/or eye contact vacuolization; anorexia, nausea, vomiting, abdominal pain; blood, liver, kidneys dermatitis

Erler & Kalinowski, Inc. EKI A90007.00 Page 1 of 4 March 2010 TABLE 2 Allowable Chemical Exposure Limits and Exposure Symptoms Horton Landing Park Emeryville, California

Cal/OSHA ACGIH Airborne (a) (f) (f) (f) Detected Chemicals Action ROUTE OF ENTRY ACUTE EXPOSURE SYMPTOMS TARGET ORGANS (b) (c) (d) (e) Level PEL-TWA PEL-STEL Ceiling TLV-TWA TLV-STEL Units Semivolatile Organic Compounds Bis(2-ethylhexyl) phthalate NL 5 NL NL 5 NL mg/m3 Inhalation, ingestion, skin Irritation eyes, mucous membrane; in animals: liver damage; Eyes, respiratory system, central nervous and/or eye contact teratogenic effects; [potential occupational carcinogen] system, liver, reproductive system, (di(2-ethyl hexyl) phthalate, gastrointestinal tract di-sec octyl phthalate, DEHP) Coal Tar Pitch Volatiles Chrysene NL 0.2 NL NL 0.2 NL mg/m3 Inhalation, skin and/or Dermatitis, bronchitis, [potential occupational carcinogen] Respiratory system, skin, bladder, kidneys Fluoranthene eye contact Pyrene Polychlorinated Byphenyl Compounds Polychlorinated Biphenyls NL 0.5 NL NL 0.5 NL mg/m3 Inhalation, skin Irritation eyes, chloracne; liver damage; reproductive effects; Skin, eyes, liver, reproductive system with 54 % chlorine absorption, ingestion, [potential occupational carcinogen] (aroclor 1254, chlorodiphenyl) skin and/or eye contact Organochlorine Pesticide Compounds DDD NL NL NL NL NL NL mg/m3 Same as DDT Expected to be similar to DDT Expected to be similar to DDT DDE NL NL NL NL NL NL mg/m3 Same as DDT Expected to be similar to DDT Expected to be similar to DDT DDT NL 1 NL NL 1 NL mg/m3 Inhalation, skin Irritation eyes, skin; paresthesia tongue, lips, face; tremor; Eyes, skin, central nervous system, absorption, ingestion, anxiety, dizziness, confusion, malaise (vague feeling of kidneys, liver, peripheral nervous system skin and/or eye contact discomfort), headache, lassitude (weakness, exhaustion); convulsions; paresis hands; vomiting; [potential occupational carcinogen] Dieldrin NL 0.25 NL NL 0.25 NL mg/m3 Inhalation, skin Headache, dizziness; nausea, vomiting, malaise (vague feeling Central nervous system, liver, kidneys, absorption, ingestion, of discomfort), sweating; myoclonic limb jerks; clonic, tonic skin skin and/or eye contact convulsions; coma; [potential occupational carcinogen]; in animals: liver, kidney damage Petroleum Hydrocarbon Compounds Gasoline NL 300 500 NL 300 500 ppmv Inhalation, skin Irritation eyes, skin, mucous membrane; dermatitis; headache, Eyes, skin, respiratory system, central absorption, ingestion, lassitude (weakness, exhaustion), blurred vision, dizziness, nervous system, liver, kidneys skin and/or eye contact slurred speech, confusion, convulsions; chemical pneumonitis (aspiration liquid); possible liver, kidney damage; [potential occupational carcinogen] Diesel NL NL NL NL 100 NL mg/m3 Inhalation, skin Expected to be similar to gasoline Expected to be similar to gasoline absorption, ingestion, skin and/or eye contact Motor Oil, Oil & Grease NL NL NL NL NL NL mg/m3 Inhalation, skin Expected to be similar to gasoline Expected to be similar to gasoline absorption, ingestion, skin and/or eye contact Metals Arsenic (metal, inorganic 0.005 0.01 NL NL 0.01 NL mg/m3 Inhalation, skin Ulceration of nasal septum, dermatitis, gastrointestinal Liver, kidneys, skin, lungs, lymphatic compounds, as As) T8 CCR 5214 absorption, skin and/or disturbances, peripheral neuropathy, respiratory irritation, system eye contact ingestion hyperpigmentation of skin, [potential occupational carcinogen]

Barium (metal, soluble NL 0.5 NL NL 0.5 NL mg/m3 Inhalation, ingestion, skin Irritation eyes, skin, upper respiratory system; skin burns; Eyes, skin, respiratory system, heart, compounds, as Ba) and/or eye contact gastroenteritis; muscle spasm; slow pulse, extrasystoles; central nervous system hypokalemia

Erler & Kalinowski, Inc. EKI A90007.00 Page 2 of 4 March 2010 TABLE 2 Allowable Chemical Exposure Limits and Exposure Symptoms Horton Landing Park Emeryville, California

Cal/OSHA ACGIH Airborne (a) (f) (f) (f) Detected Chemicals Action ROUTE OF ENTRY ACUTE EXPOSURE SYMPTOMS TARGET ORGANS (b) (c) (d) (e) Level PEL-TWA PEL-STEL Ceiling TLV-TWA TLV-STEL Units Cadmium (metal, inorganic 0.0025 0.005 NL NL 0.01 NL mg/m3 Inhalation, ingestion Pulmonary edema, dyspnea (breathing difficulty), cough, chest Respiratory system, kidneys, prostate, compounds, as Cd) T8 CCR 1532 tightness, substernal (occurring beneath the sternum) pain; blood T8 CCR 5207 headache; chills, muscle aches; nausea, vomiting, diarrhea; anosmia (loss of the sense of smell), emphysema, proteinuria, mild anemia; [potential occupational carcinogen]

Chromium (metal , CrII 0.5 NL NL 0.5 NL mg/m3 Inhalation, ingestion, skin Irritation eyes, skin; lung fibrosis (histologic) Eyes, skin, respiratory system & Cr III compounds, as Cr) and/or eye contact Chromium VI (hexavalent 0.0025 0.005 NL 0.1 0.05 / 0.01 NL mg/m3 Inhalation, ingestion, skin Irritation respiratory system; nasal septum perforation; liver, Blood, respiratory system, liver, kidneys, compounds, as Cr VI) T8 CCR 1532.2 (sol / insol) and/or eye contact kidney damage; leukocytosis (increased blood leukocytes), eyes, skin T8 CCR 5206 leukopenia (reduced blood leukocytes), eosinophilia; eye injury, conjunctivitis; skin ulcer, sensitization dermatitis; [potential occupational carcinogen] Cobalt (metal fume NL 0.02 NL NL 0.02 NL mg/m3 Inhalation, ingestion, skin Cough, dyspnea (breathing difficulty), wheezing, decreased Skin, respiratory system and dust, as Co) and/or eye contact pulmonary function; weight loss; dermatitis; diffuse nodular fibrosis; respiratory hypersensitivity, asthma Copper (salts, dusts NL 1 NL NL 1 NL mg/m3 Inhalation, ingestion, skin Irritation eyes, respiratory system; cough, dyspnea (breathing Eyes, skin, respiratory system, liver, and mists, as Cu) and/or eye contact difficulty), wheezing kidneys (increase(d) risk with Wilson's disease) Lead (metal, inorganic 0.03 0.05 NL NL 0.05 NL mg/m3 Inhalation, ingestion, skin Lassitude (weakness, exhaustion), insomnia; facial pallor; Eyes, gastrointestinal tract, central compounds, as Pb) T8 CCR 1532.1 and/or eye contact anorexia, weight loss, malnutrition; constipation, abdominal nervous system, kidneys, blood, gingival T8 CCR 5216 pain, colic; anemia; gingival lead line; tremor; paralysis wrist, tissue ankles; encephalopathy; kidney disease; irritation eyes; hypertension Mercury (metal, inorganic NL 0.025 NL 0.1 0.025 NL mg/m3 Inhalation, skin Irritation eyes, skin; cough, chest pain, dyspnea (breathing Eyes, skin, respiratory system, central compounds, as Hg) absorption, ingestion, difficulty), bronchitis, pneumonitis; tremor, insomnia, nervous system, kidneys skin and/or eye contact irritability, indecision, headache, lassitude (weakness, exhaustion); stomatitis, salivation; gastrointestinal disturbance, anorexia, weight loss; proteinuria Molybdenum (insoluble NL 10 NL NL 10 NL mg/m3 Inhalation, ingestion, skin In animals: irritation eyes, nose, throat; anorexia, diarrhea, Eyes, respiratory system, liver, kidneys compounds, as Mo) and/or eye contact weight loss; listlessness; liver, kidney damage

Erler & Kalinowski, Inc. EKI A90007.00 Page 3 of 4 March 2010 TABLE 2 Allowable Chemical Exposure Limits and Exposure Symptoms Horton Landing Park Emeryville, California

Cal/OSHA ACGIH Airborne (a) (f) (f) (f) Detected Chemicals Action ROUTE OF ENTRY ACUTE EXPOSURE SYMPTOMS TARGET ORGANS (b) (c) (d) (e) Level PEL-TWA PEL-STEL Ceiling TLV-TWA TLV-STEL Units Molybdenum (soluble NL 0.5 NL NL 0.5 NL mg/m3 Inhalation, ingestion, skin In animals: irritation eyes, nose, throat; anorexia; Eyes, respiratory system, kidneys, blood compounds, as Mo) and/or eye contact incoordination; dyspnea (breathing difficulty); anemia Nickel (metal, as Ni) NL 1 NL NL 1.5 NL mg/m3 Inhalation, ingestion, skin Sensitization dermatitis, allergic asthma, pneumonitis; Nasal cavities, lungs, skin and/or eye contact [potential occupational carcinogen] Nickel (insoluble NL 1 NL NL 0.2 NL mg/m3 Inhalation, ingestion, skin Sensitization dermatitis, allergic asthma, pneumonitis; Nasal cavities, lungs, skin compounds, as Ni) and/or eye contact [potential occupational carcinogen] Nickel (soluble NL 0.1 NL NL 0.1 NL mg/m3 Inhalation, ingestion, skin Sensitization dermatitis, allergic asthma, pneumonitis; Nasal cavities, lungs, skin compounds, as Ni) and/or eye contact [potential occupational carcinogen] Selenium (metal and NL 0.2 NL NL 0.2 NL mg/m3 Inhalation, ingestion, skin Irritation eyes, skin, nose, throat; visual disturbance; headache; Eyes, skin, respiratory system, liver, compounds, as Se) and/or eye contact chills, fever; dyspnea (breathing difficulty), bronchitis; metallic kidneys, blood, spleen taste, garlic breath, gastrointestinal disturbance; dermatitis; eye, skin burns; in animals: anemia; liver necrosis, cirrhosis; kidney, spleen damage 3 Vanadium pentoxide NL 0.05 NL NL 0.05 NL mg/m Inhalation, ingestion, skin Irritation eyes, skin, throat; green tongue, metallic taste, Eyes, skin, respiratory system and/or eye contact eczema; cough; fine rales, wheezing, bronchitis, dyspnea (breathing difficulty) Zinc oxide dust NL 10 10 NL 2 NL mg/m3 Inhalation Metal fume fever: chills, muscle ache, nausea, fever, dry throat, Respiratory system (as total nuisance dust) cough; lassitude (weakness, exhaustion); metallic taste; headache; blurred vision; low back pain; vomiting; malaise (vague feeling of discomfort); chest tightness; dyspnea (breathing difficulty), rales, decreased pulmonary function

Abbreviations: ACGIH = American Conference of Governmental Industrial Hygienists NL = not listed T = Title Cal/OSHA = California Occupational Health and Safety Administration NIOSH = National Institute for Occupational Safety and Health STEL = Short Term Exposure Limit CCR = California Code of Regulations PEL = Permissible Exposure Limit TLV = Threshold Limit Value insol = insoluble ppmv = part per million by volume TWA = time weighted average mg/m3 = milligrams per cubic meter sol = soluble

Notes: (a) List of detected chemicals from Analysis of Brownfields Cleanup Alternatives, Horton Landing Park, Emeryville, California, prepared by Erler & Kalinowski, Inc., 25 March 2009 and from Soil and Groundwater Investigation Data Report, Horton Landing Park, Emeryville, California, prepared by Erler & Kalinowski, Inc., 20 July 2009. (b) Cal/OSHA; 8hr/day, 40 hr/week (Title 8 CCR Section 5155). (c) Cal/OSHA; 15-minute period (Title 8 CCR Section 5155). (d) ACGIH; 8hr/day, 40 hr/week (2009 Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices ). (e) ACGIH; 15-minute period (2009 Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices ). (f) NIOSH (Pocket Guide to Chemical Hazards. September 2005 ).

Erler & Kalinowski, Inc. EKI A90007.00 Page 4 of 4 March 2010

TABLE 3 EMERGENCY INFORMATION

EMERGENCY TELEPHONE NUMBERS

In emergency, ambulance: 911

Hospital: (510) 204-1303

Hospital: Alta Bates Medical Center Emergency 2450 Ashby Avenue Berkeley, CA phone (510) 204-1303

Police and Fire Departments: 911

Fire Department (Direct for cell phones) (510) 596-3753

Poison Control: 1 (800) 424-8802

Toxline: (301) 496-1131

CHEMTREC (24-hour, emergency only) (800) 424-9300

City of Emeryville Redevelopment Agency Representative Mr. Michael G. Biddle (510) 596-4381

EKI Field Phone To be determined

Erler & Kalinowski, Inc.: (650) 292-9100 (Office) Corporate Safety Supervisor: (Tom Kalinowski)

SPILL/RELEASE TELEPHONE NUMBERS

For a significant release or threatened release of hazardous materials: First call EKI Project Manager or other manager at EKI. Call 911 first if imminent threat to life or health. Then call Office of Emergency Services (OES), California State Warning Center: (800) 852-7550

For release to a waterway (e.g., storm drain or SF Bay): Regional Water Quality Control Board (during business hours): (510) 622-2300 After business hours, call OES number listed above. U.S. Coast Guard (SF Bay Area): 415-399-3547

TABLE 3 (continued) EMERGENCY INFORMATION

DIRECTIONS TO EMERGENCY HOSPITAL (Alta Bates Medical Center Emergency; see Figure 2)

From the Site, take Stanford Avenue and go approximately 1.2 miles to Adeline Street, continue on Adeline Street for 0.6 miles, bear right on Ashby Avenue and continue approximately 0.6 miles to the hospital which will be on the right. The emergency room entrance is well marked.

STANDARD PROCEDURE FOR REPORTING EMERGENCIES

When calling for assistance in an emergency situation, provide the following: o Name of person making call. o Telephone number and location of person making call. o Name(s) of person (s) exposed or injured and their location. o Nature of emergency and type of exposure, when appropriate. o Actions already taken.

Never be the first to hang up when calling for emergency assistance.

Wait for the dispatch operator to finish all questions.

As with all wireless phones, if you are in an area where your phone is searching or scanning for a signal, it is highly probable that a call to 911 will not go through. Prior to beginning site activities, the nearest landline phone will be identified. If your wireless 911 call is not connecting, use the nearest landline phone and call for help or call the fire department directly.

Horton Landing Park Emeryville, CA

Notes: Erler & 1. All locations are approximate. Kalinowski, Inc. 2. Basemap source: The Thomas Guide, Bay Area Metro, 2007. Site Map

Horton Landing Park Emeryville, CA 0 1000 2000 March 2010 EKI A90007.00 (Approximate Scale in Feet) Figure 1 Figure 2 - Directions to Emergency Hospital

ATTACHMENT 1

Daily Tailgate Safety Meeting Form

Erler & Kalinowski, Daily Safety Meeting Log Inc.

Project Location: ______Sheet: ______of ______Date: ______Project: ______Health & Safety Supervisor: ______EKI Job No: ______

Topics Discussed

• Today’s Objectives: ______

• Hazards: ______

• Personal Protective Equipment: ______

• Decontamination Procedures: ______

• Emergency Contingency Plans: ______

Meeting Attandance Name Company Name Company 1 ______8 ______2 ______9 ______3 ______10 ______4 ______11 ______5 ______12 ______6 ______13 ______7 ______14 ______