Overview COMMERCIAL EXPERIENCE

Engineering/Remediation Resources Group, Inc. Engineering/Remediation Resources Group, Inc. A Full-Service Engineering and Construction Resource

Intro Engineering/Remediation Resources Group, ERRG is led and managed by seasoned Inc. (ERRG) provides a broad professionals with years of experience in scope of engineering, construction, and consulting and construction, and provides remediation services. Our team consists of a wide array of engineering services nearly 300 full-time employees, including ranging from initial site investigations environmental, civil and geotechnical and characterization through design and engineers, geologists, soil physicists, construction. Working in multidisciplinary scientists, construction managers, teams, ERRG’s staff routinely designs, construction superintendents, equipment implements, and manages projects involving operators, certified hazardous waste planning and development, subcontractor technicians, and administrative personnel. coordination, budget tracking, regulatory Our team’s broad base of environmental, agency interaction, feasibility studies, plans geotechnical, and construction backgrounds and specifications, construction, and enables ERRG to provide the full spectrum construction management services. of turnkey services to our public and private sector clients. Incorporated in 1997, ERRG currently has offices in Martinez, San Francisco, Sacramento, and Tustin, California; Seattle, and Spokane, Washington; Portland, Oregon; Honolulu, Hawaii; and Phoenix, Arizona. Our expansion to Hawaii allows us to service the Pacific and Asian markets.

For more information please visit us at www.errg.com.

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com LocationsLocat ions ERRG is committed to providing the highest level of quality, value, and service. To ensure this commitment to our clients, we maintain several offices strategically located in California, Oregon, Washington, Arizona, and Hawaii.

If you require Construction, Remediation, Environmental Engineering, Geotechnical Engineering, Military Munitions Response or Emergency Preparedness services, please contact any one of our offices.

CALIFORNIA

• 4585 Pacheco Boulevard • 1541 Parkway Loop Suite 200 Suite D Martinez, CA 94553 Tustin, CA 92780 925.969.0750 714.597.7750

• 115 Sansome Street • 9727 Business Park Drive Suite 200 Suite 136 San Francisco, CA 94104 Sacramento, CA 95827 415.395.9974 916.799.3976

WASHINGTON HAWAII

• 616 First Avenue • 677 Ala Moana Boulevard Suite 300 Suite 308 Seattle, WA 98104 Honolulu, HI 96813 206.282.4749 808.533.6000

• 14124 West SR2 Hwy Airway Heights Spokane, WA 99224 ARIZONA 509.244.6574

• 9950 W. Van Buren Street Suite 136 OREGON Avondale, AZ 85323 623.266.9532 • 21355 Horton Court West Linn, OR 97068 503.701.7943

*Topographic imageryyc couo rtesessy of Google Eartht

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Clients United States Department of Defense

• U.S. Navy • U.S. Air Force • U.S. Army Corps of Engineers • U.S. Coast Guard United States Federal Clients

• Environmental Protection Agency

• General Services Administration • U.S. Department of Agriculture, Forest Service • U.S. Department of Energy • U.S. Department of Justice • Federal Aviation Administration • National Parks Service • U.S. Department of the Interior, Bureau of Land Management • U.S. Department of the Interior, Fish and Wildlife • U.S. Department of Transportation, Maritime Administration • U.S. Geological Survey • U.S. Postal Service • U.S. Mint Commercial

• Abbott Laboratories • Aerojet • The Boeing Company • Lennar • PG&E • San Francisco International Airport • Sempra Energy • Southern California Edison • The Presidio Trust

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Experience

COMMERCIAL PROJECTS

Project Name/Location Owner Value (in thousands) Hunters Point Power Plant Remediation, San Francisco, CA PG&E (Subcontractor to URS) $ 11,469 Spring Creek Central Disposal Facility Construction, US EPA 6,253 Redding, CA (Subcontractor to CH2M Hill) BKK Landfi ll Stormwater System Repairs, West Covina, CA State of CA, Dept. of Toxic 6,215 Substances Control (DTSC) BKK Landfi ll Critical System O&M, West Covina, CA DTSC 6,000 Baker Beach Soil Removal, San Francisco, CA AIS Construction 5,690 Chemical and Pigment Company Site Closure, Pittsburg, CA DTSC 5,095 Midway Village/Bayshore Park Soil Remediation, DTSC 3,200 Daly City, CA Baylands Recovery/Former Peninsula Sportsmen’s Club, City and County of San 3,194 Menlo Park, CA Francisco San Francisco International Airport As-Needed Environmental San Francisco International 3,169 Support Services, San Francisco, CA Airport J & S Plating Site Remediation, Bell Gardens, CA DTSC 3,131 Chrome Crankshaft Site Remediation, Bell Gardens, CA DTSC 2,603 Camp Roberts Landfi ll Improvements, Camp Roberts, CA CA National Guard 2,601 Mission Bay Redevelopment, Utility Soil Spoils Catellus Corporation 2,500 Characterization and Management, San Francisco, CA Landfi ll 4 and Fill Site 5 Soil Remediation, San Francisco, CA The Presidio Trust 2,391 Carlson Site Soil Remediation and UST Closure, DTSC 1,700 Richmond, CA Former Manufacturing Facility Soil Excavation, Vallejo, CA Malcolm Pirnie 1,457 Former Petroleum Storage Facility, Site Remediation, Treadwell & Rollo 1,375 Stockton, CA Commissary Building Soil Excavation, San Francisco, CA The Presidio Trust 1,153 Police Firing Range Berm Removal and Replacement, San San Francisco International 1,300 Francisco, CA Airport Former Manufactured Gas Plant Soil Excavation, Chico, CA PG&E (Subcontractor to Parsons) 1,074 Singer Friden Groundwater Monitoring and Treatment DTSC 1,050 System Operation, San Leandro, CA Former Manufactured Gas Plant Treatment System Upgrade PG&E (Subcontractor to Stantec) 998 and Soil Excavation, St. Helena, CA

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Experience

COMMERCIAL PROJECTS

Project Name/Location Owner Value (in thousands) Beebe Ranch Tire Remediation, Petaluma, CA CA Integrated Waste 950 Management Board Caltech Soil Vapor Extraction System Construction, DTSC 730 Oakland, CA PCB Spill Excavation, Stockton, CA PG&E (Subcontractor to Parsons) 702 Former Manufactured Gas Plant Cap Construction, PG&E 658 Oakland, CA (Subcontractor to Geomatrix) Dual-Phase Extraction System Installation, Newark, CA FMC Corporation 626 Class I Landfi ll Cap Construction, Richmond, CA West Contra Costa County 530 Landfi ll Cap Construction, Moneterey, CA PG&E (Subcontractor to Parsons) 521

Aliso Canyon Gas Storage Facility Soil Excavation, SEMPRA 506 Northridge, CA North Property Line PCB Excavation, Oakland, CA URS Corporation 430 Former Point Saint George Fisheries Site Remediation, Treadwell & Rollo 400 Santa Rosa, CA Soil Removal, Alhambra, CA Southern California Edison 305 General Environmental Services, Oakland, CA East Bay Municipal Utilities 300 District Buffalo Creek Sediment Remediation, Rancho Cordova, CA Aerojet 292 Soil Transportation and Disposal, Ione, CA AECOM 196 Former Substation Site Remediation, Lompoc, CA PG&E 195 Briggs Tire Site Cleanup, Petaluma, CA CA Integrated Waste 192 Management Board Treatment System O&M, Oakland, CA SAIC 125 Soil Vapor and Groundwater Extraction System, Newark, CA Parsons 94 Former Power Plant Soil Excavation, Moss Landing, CA PG&E 87

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects

Spring Creek Central ERRG constructed a confi ned disposal cell to contain contaminated Disposal Facility mine sediments dredged from a nearby Bureau of Reclamation reservoir on the Sacramento River. Th e scope of work included crushing nearly Construction 40,000 tons of aggregate for roadway baserock, pipe bedding, and drainage gravel. An additional 22,000 cubic yards of decomposed granite was segregated and processed through a screening plant. ERRG SUMMARY performed excavation of 165,000 cubic yards of soil and embankment to construct the access roads and the disposal cell, and approximately 1 mile of access roads in mountainous terrain were graveled and paved Owner with hot mix asphalt. CH2M Hill Constructors

Site activities included: Location • Installing culverts in a live Redding, CA stream. Award Date • Constructing perimeter May 2009 ditches and drainage features. Actual Completion Date • Installing Geotextile, or Projected Completion Date Composite Drainage Net, September 2009 and Geomembrane. Award Amount • Pouring concrete pads and $6,197,338 thrust anchor blocks. Final Contract Price • Installing light poles and electrical conduits. $6,337,158 (additional scope) • Installing erosion control consisting of silt fencing, fi ber bonded matting, erosion blankets, and hydroseeding. Services Provided Aggregate Crushing ERRG constructed underdrains and groundwater seepage collection Road Crossing of Live Stream features to relieve groundwater seeps. Culverts and Piping Installation Embankment Construction Underdrain and Seepage Collection Erosion Controls Geotextile, Drainage Net, and Geomembrane Geotechnical QC USACE 3-Phase QC Inspection Program

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects

ERRG performed site remediation at the J & S Chrome Plating J & S Chrome Plating Company, a two-acre site located in Bell Gardens, California. Site Remediation J&S operated a chrome plating facility at the site from 1953 to 1999. Th e manufacturing process consisted of chrome, zinc and cadmium plating of metal. Solvent degreasing operations were also SUMMARY performed using naphthalene, methyl ethyl ketone, trichloroethylene, tetrachloroethylene, and 1,1,1-trichloroethane. All plating operations were reportedly performed on the South parcel. Th e North parcel is unpaved and undeveloped land. Owner State of California ERRG performed grubbing, Dept. of Toxic Substances Control clearing and the removing of 10 (DTSC) existing trees from an area covering approximately 38,400 square feet Location (sf). ERRG removed asphalt from Bell Gardens, CA approximately 8,800 sf of area, and removing approximately 18,400 sf Award Date July 2008 of concrete, including 4,000 sf of building foundation. Both asphalt and Actual Completion Date concrete were handled and disposed of or Projected Completion Date as construction debris. Any residual September 2008 contaminated soil on the asphalt/ concrete had to be “dry” separated (e.g., Award Amount crushed/ shaked/screened), stockpiled $3,132,000 and sampled in the same manner as the contaminated soil stockpile. Final Contract Price $3,132,000 ERRG also installed 10 infi ltration galleries for the purpose of future Services Provided chemical fi xation using calcium polysulfi de. Prior to the installation of Clearing and Grubbing the infi ltration galleries, ERRG performed three infi ltration tests at the Soil Stockpiling base of randomly excavation cells planned for infi ltration. Soil Sampling Soil Excavation and Backfi lling Transportation and Disposal

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects

ERRG performed construction services for the installation of a surface Surface Cap Construction cap and application of a slurry coat within the maintenance yard Former Oakland-1 MGP parking lot at the former PG&E Oakland-1 Manufactured Gas Plant (MGP) located in Oakland, California. Th e surface cap was designed to eliminate exposure pathways of chemicals of potential concern for SUMMARY industrial workers and other visitors to the Gas Load Center. Th e surface cap installation included grading the easement area, placing and light compacting a reservoir and choker aggregate material, and installing pervious asphalt and pervious concrete. Owner Geomatrix/PG&E A utility survey conducted during mobilization identifi ed Location previously unknown subsurface Oakland, CA high-voltage electrical lines running through the easement Award Date requiring a modifi cation July 2008 to the grading approach. Approximately 120 tons of Actual Completion Date lead impacted soil was hand- or Projected Completion Date excavated and placed in storage September 2008 bins for transport and disposal to a Class 1 landfi ll facility. In Award Amount $657,500 addition to soil removal, 30 tons of asphalt and 6 tons of abandoned metal piping were removed from the easement area which had been Final Contract Price uncovered during the grading work. Concrete footings used to hold $657,500 the former high-pressure gas line were also removed from the easement during grading and disposed. Services Provided Due to the presence of underground high-voltage electrical lines and Clearing/Grubbing an aboveground high-pressure gas line, a majority of the grading was Grading Fence Replacement conducted without the use of heavy equipment. Pervious Asphalt and Concrete Installation Water Line Repair

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects

ERRG conducted a large excavation at a former manufacturing facility Former Manufacturing in Vallejo, California. Th e area of the excavation was approximately 30,000 square feet and the average depth was approximately 15 feet. A Facility Soil Excavation total of 9,000 cubic yards of contaminated soil was removed from the site. SUMMARY Due to high groundwater level, soft bay mud condition, and tidal infl uence, sheet piles were installed around the excavation site to serve as the cut off wall for reducing seepage and to support the adjacent soil. Th e average driven depth of the sheet was approximately 25 feet below Owner ground surface. Malcom Pirnie Two portable tanks were Location brought in to the site as storage Vallejo, CA for rainwater and seepage accumulated in the bottom Award Date of excavation. Water and November 2006 sludge stored in the tanks were hauled off site for proper Actual Completion Date disposal when the project was or Projected Completion Date completed. May 2007 Excavated soil was treated Award Amount onsite to reduce the $1,500,000 concentration. Upon completion of on-site treatment, soil that met the project criteria was Final Contract Price used as backfi ll material for the excavation. Due to excessive moisture $1,500,000 content in the treated soil, lime was added to improve the workability. In May 2007, the site was completely restored. Services Provided Removal of Contaminated Soil Mass Excavation Shoring Soil Treatment Lime Stabilization Earthfi ll Placement Reconnection of Utility Site Restoration

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects

Baker Beach Disturbed ERRG collected soil stockpile samples, characterize the waste, profi le the Areas 1 and 2A waste, and off -haul and dispose of the contaminated soil at an approved waste facility to remove landfi ll deposits from the Presidio Trust Baker Soil Removal Beach Disturbed Areas (BBDA) 1, approximately 66,000 square feet, and 2A, approximately 38,000 square feet. SUMMARY In BBDA 1, test pits and borings indicated that the waste fi ll deposit varied in thickness: 10 feet on the bluff top, 25 feet or greater in the center of the fi ll, and 8 feet thick at the toe below the seep zone. Owner In BBDA 2A, waste fi ll is thickest at the AIS Construction Company toe (greater than 15.5 feet) and shallower toward the bluff top of the landfi ll. Location ERRG sampled the excavated soil San Francisco, CA stockpiles to characterize the waste for Award Date disposal. Th e stockpiles were separated August 2007 into 500 cubic yard sections, measured, and marked. Four-point composite Actual Completion Date samples were collected from each section. or Projected Completion Date After excavated waste material was December 2007 characterized, the waste was loaded into lined trucks using either a loader or an Award Amount excavator for transport to the appropriate $5,600,000 facility. Vehicles carrying waste were tarped before they left the Site. Final Contract Price $5,600,000 In total, EERG loaded out over 80,000 tons of waste to an approved landfi ll. In Services Provided order to accomplish this volume of material in a relatively short period Soil Stockpiling of time, ERRG averaged loading 60 trucks per day. Additionally, Soil Sampling loading activities typically took place between midnight and 8:00 a.m. Waste Characterization in an eff ort to relieve traffi c concerns around the site. and Profi ling Transportation and Disposal

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects

Dual Phase Treatment ERRG performed remediation activities at the PG&E former System Upgrade and Manufactured Gas Plant (MGP) in downtown St. Helena, California. Th e remediation activities at the property were divided into two phases: Soil Excavation the fi rst phase involved the removal of lightly impacted soil on the southern half of the property and the second phase involved removal SUMMARY of heavily impacted soil on the northern half. After the completion of remedial activities, the property was transferred to the City of St. Helena for use as paved parking. Owner ERRG expanded a pilot treatment Stantec/PG&E system which originally consisted of 12 dualphase extraction (DPE) wells, Location designed and constructed for a six- St. Helena, CA month pilot program, into a longer term facility by adding ten extraction Award Date wells. Th e DPE facility was required to February 2007 be operational for use during the fi rst phase of remediation. Th e DPE facility Actual Completion Date was installed to assess the viability of or Projected Completion Date reducing the potential odor nuisance of October 2007 the contaminants of concern, primarily naphthalene, to the surrounding Award Amount $834,182 community as soils were excavated. DPE system expansion included Final Contract Price construction of a building to house the $997,572 (additional scope) major components of the treatment system, re-routing piping for water, Services Provided vapor, and electrical conveyance piping to the new building, installing Dual Phase Treatment System underground conveyance from the new extraction points to the facility, Upgrade and Soil Excavation and installing discharge lines to the city’s sewer main and to the storm drain. Treated waster was discharged to the sanitary system during normal periods of operation and to the storm drain under the facility’s NPDES permit, upon the City of St. Helena’s request, during periods of high-volume.

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects Remedial Excavation of Contaminated Soil ERRG excavated, transported, and disposed of 33,000 tons of at the Former Union contaminated soil from an area formerly used by Union Oil as a bulk fuel storage facility. Th e purpose of the removal action was to remove Oil Facility petroleum hydrocarbon- and lead–contaminated soil to facilitate site closure and redevelopment by the land owner, the City of Stockton. SUMMARY Prior to excavation activities, ERRG performed in-situ soil characterization to determine Owner soil disposition prior to Treadwell & Rollo transportation and off -site disposal. Soil samples were Location collected using direct-push Stockton, CA equipment and analyzed for petroleum hydrocarbons and Award Date metals. ERRG was able to October 2008 obtain pre-excavation approval by the landfi ll where excavated Actual Completion Date soil was to be shipped. or Projected Completion Date January 2009 Work activities included: • Conducting a direct-push soil investigation Award Amount $1,375,000 • Collecting and analyzing composite soil samples for site characterization Final Contract Price • Excavating, transporting, and disposing of 33,000 tons of $1,375,000 contaminated soil at an off -site landfi ll Services Provided • Importing, backfi lling, and compacting 33,000 tons of clean In-Situ Soil and Groundwater soil at the site Investigation Soil Excavation and Transportation • Installing a low-permeability barrier in the backfi ll material and Disposal • Locating and removing abandoned fuel pipelines Import, Backfi ll, and Compact Clean Soil • Conducting air monitoring • Conducting noise monitoring • Installing a soil vapor mitigation system to suppress petroleum hydrocarbon vapors

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects

Caltech Metal Finishers ERRG installed and operated a soil vapor extraction (SVE) system Soil Vapor Extraction designed to remove volatile organic compounds (VOCs), primarily trichloroethene (TCE) and vinyl chloride, from subsurface soils at the System Installation former Caltech Metal Finishers site in Oakland, California. Th e SVE system was intended to serve as an interim remedial action to SUMMARY prevent VOCs from potentially migrating off site to neighboring residential properties. SVE technology was selected Owner so that remedial action would Dept. of Toxic Substances Control be implemented with minimal (DTSC) disturbance to adjacent residences. DTSC fi rst Location contracted ERRG to develop Oakland, CA a work plan and design for the SVE system. Chemical and Award Date geotechnical data were collected November 2007 in December 2008 to refi ne the extraction well layout and Actual Completion Date system requirements. Based or Projected Completion Date on data collected, ERRG designed an SVE system that included 10 December 2009 PVC horizontal extraction wells, a liquid ring blower capable of 300 Award Amount Acoustic Current Flow Meter and 27 inches Hg vacuum, three 2,000 $730,000 pound granular activated carbon vessels, and 17 multi-depth soil gas monitoring probes. Final Contract Price Horizontal extraction wells (trenches) were installed for the SVE system $730,000 because groundwater was potentially shallow and they would allow for increased surface area to remove more VOC mass and optimize the Services Provided capture zone. Installation and Operation of Soil Vapor Extraction System Permits obtained for the project included a Permit-to-Construct/Permit- to-Operate from the Bay Area Air Quality Management District for the operation of the SVE system, and a well permit from the Alameda County Public Works Agency, Water Resources Section, for installation of the soil gas monitoring probes.

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects Singer Friden Treatment Facility System Operation,

In 2001, ERRG was awarded its fi rst Master Service Agreement Maintenance, and (MSA) with the California Department of Toxic Substances Control Monitoring (DTSC). Th e contract was designed to assist the DTSC in meeting its commitment of reducing the risk of released hazardous substances/ materials to public health and to the environment in an eff ective and SUMMARY expeditious manner. Under this contract ERRG was tasked with implementation of remedial actions necessary to prevent, mitigate, or eliminate the release of uncontrolled hazardous substances/materials at sites in California. ERRG has conducted Owner State of California work on 17 task orders totaling $13.6M Dept. of Toxic Substances Control over the life of this contract. (DTSC) ERRG worked closely with DTSC personnel to select appropriate remedies Location and provide fi nal documentation for site San Leandro, CA closure. Highlights from the Singer-Friden task order are discussed below. Award Date October 2002 Th e Singer-Friden roundwater Remediation System project is located Actual Completion Date in a residential and light commercial or Projected Completion Date area of San Leandro, California. Th e Ongoing groundwater contains elevated levels of volatile organic compounds (VOCs), Award Amount primarily trichloroethene (TCE) and $1,372,847 tetrachloroethene (PCE), as a result of Final Contract Price operations at a former industrial manufacturing facility. Th e extraction $2,554,564 (additional scope) system is composed of nine extraction wells, nine monitoring wells, and seven piezometers located throughout a residential neighborhood. Services Provided Th e treatment system is composed of two vessels, each containing System O & M 6,000 pounds of liquid-phase granular activated carbon, and ancillary appurtenances. ERRG continues to provide operation and maintenance services on the system.

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Projects

Presidio of San Francisco ERRG completed remediation and restoration eff orts at Landfi ll 4 and Landfi ll 4 and Fill Site 5 Fill Site 5, two former landfi ll sites undergoing accelerated cleanup, at the Presidio in San Francisco, California. Th e landfi ll sites were Remediation reportedly used by the Army for disposal of debris and some chemical (liquid) and municipal wastes. SUMMARY ERRG prepared the work plan and associated documentation, including a health and safety plan, sampling and analysis plan, and storm water pollution prevention plan in preparation for the remediation activities. Owner Th e documents were reviewed by the Presidio Trust and their consultant The Presidio Trust and accepted within two weeks from their initial submission. Location Th e project involved numerous San Francisco, CA work elements including installing erosion controls at Award Date both sites; establishing and October 2002 maintaining: work zones, Actual Completion Date staging areas, fencing, stockpile or Projected Completion Date areas, and decontamination May 2003 facilities; conducting baseline and asbuilt topographic Award Amount surveys; clearing and grubbing $1,494,631 of surface vegetation and tree removal; potholing, sample collection and analyses to characterize wastes for disposal/recycling; excavation, Final Contract Price segregation, and stockpiling; waste loading, transport and disposal; $2,391,137 (additional scope) grading and backfi lling; and installation of surface drainage and erosion control measures. ERRG segregated recyclable materials where possible Services Provided during the project including most construction debris (e.g., concrete Remedial Action masonry, soil, metal), some municipal waste (e.g., cans, bottles, paper), Erosion Controls Remedial Design as well as vegetative material. Waste Characterization Stringent engineering controls and an air surveillance program were Waste Management employed at both sites to minimize impacts to the surrounding public during project execution. Additional asbestos dust mitigation measures were implemented during excavation activities at Fill Site 5 due to the presence of serpentinite beneath the fi ll material.

Engineering/Remediation Resources Group, Inc.

Offi ce Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Ser vices Environmental Remediation & Construction UXO & MEC

• Contaminated Soil Excavation • Munitions Response Under CERCLA • Landfill Capping and Closure • Preliminary Assessment/Site Investigation • Transportation and Disposal • Remedial Investigation/Feasibility Study • Treatment System Installation and O&M • Removal Action • Industrial Site Closure and Facility Decommissioning • Geophysical Investigation • Storage Tank Removal and Closure • Impact Range Clearance & Maintenance • Tank, Structure and Equipment Decontamination • QA/QC Management • Waste Characterization, Segregation and Packaging • Project Management Civil & Environmental Engineering • Construction Support Construction • Remedial Investigations and Feasibility Studies • Remedial Design and Action Plan Development • Sustainment Restoration • Soil and Groundwater Investigations/Characterization and Modernization • Regulatory Compliance and Permitting • New Construction • Environmental Assessments • Demolition • Landfill Engineering • Construction Oversight and Quality Assurance • Pilot Testing • Water and Wastewater Treatment • SPCC and SWPP Preparation Conveyance Emergency Preparedness & Prevention • Flood Control Infrastructure • Aquatic Ecosystem Restoration • Incident Command System Training • Anti-terrorism Force Protection • Table Top, Functional & Full Scale Exercises Retrofitting • Incident Command System (ICS) Coach for Actual Response Geotechnical Engineering • National Response Framework (NRF) • Subsurface Investigations Overview Training • Retaining Wall Designs • Emergency Response Plan Development • Slope Stability Analyses • Facility Plans & Training Record Maintenance • Footing and Mat Foundation Designs • Maritime and Spill Prevention, Control and • Pier and Piling Designs and Analyses Countermeasure (SPCC) Oil Compliance Regulations Assistance • Drainage/Seepage/Dewatering Evaluations • Soil Improvement/Amendment Recommendations • Foundation Engineering

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Personnel

Technical & Administrative Number Engineers 262286 Geologists 1819 Scientists 19 Technicians 43 Administrative 2277 Construction Managers 28 Superintendents 20 Foremen 13 Operators 2222 Laborers 56 TOTAL 275272272

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Financials

INSURANCE

• Commercial General Liability, $1,000,000 • Pollution Liability, $1,000,000 • Professional Liability, $1,000,000 • Automobile Liability, $1,000,000 • Excess/Umbrella Liability, $9,000,000 • Workman’s Compensation, Statutory Limits

BONDING

• Aggregate Capacity, $50,000,000

REVENUE 60 62.0

40 58.3

35

30

25

20

15

10

5

0 2004 2005 2006 2007 2008 2009 2010 2011

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Health & Safety

ERRG firmly believes that maintaining a safe workplace is critical to our overall mission and should always receive a higher priority than cost or schedule.

EMR RATING Year Rating

2011 .64 ERRG’S JOB SITE AUDIT FORM 2010 .82 2009 .77 2008 .77

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Registrations

LICENSES AND REGISTRATIONS

• Professional Registrations in Civil & Geotechnical Engineering (AK, AL, AZ, CA, CO, NV, NY, OR, WA) • Registered Geologists (CA, OR, WA) • General Contractor’s License (Class A) with Hazardous Substances Removal Endorsement (AK, AZ, CA, HI, NV, NM, OR, WA)

• Certified Hazardous Materials Manager (CHMM) • California Registered Environmental Assessors (REA) • Bay Area Training Center (BATC) Certified Personnel • LEED Accredited Professional

CERTIFICATIONS

• Woman and Minority-Owned Business • Small Business, NAICS Code 562910 (500 Employees) • State of California, Public Utilities Commission (WMBE)

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Equipment

• Backhoe • Excavator • Bobcats (w/attachments) • Forklift • Generators • Pressure Washer • Jackhammer • Concrete Cutter • Water Truck • Office Trailer • Nuclear Density Gauges • Pumps • Datarams • Vehicles ◊ Pickups ◊ Ford F150s ◊ Ford F250s ◊ 1/2 Ton Pickups ◊ 1 Ton Flat Beds ◊ Dump Trucks

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com Awards • ‘11 Department of Defense Nunn-Perry Award (2nd award) • Largest Environmental Firm in the United States (#118), Engineering News-Record (ENR) • Hot Firm 2011, #34 of top 50 Hot Firms, Zweig-White • Engineering/Construction (#3), Zweig-White • Small Business Administration (SBA) Region IX Prime Contractor of the Year

• ‘10 Environmental Achievement Award (Silver Medal/Mid-Size Firms), Environmental Business Journal • Top 200 Environmental Firms (#140), Engineering News-Record (ENR) • Hot Firm 2010, List Fastest Growing A/E/P and Environmental Consulting Firms (#136), Zweig-White

• Top 200 Environmental Firms (#150), Engineering News-Record (ENR) ‘09 • Hot Firm 2009, List Fastest Growing A/E/P and Environmental Consulting Firms (#111), Zweig-White • Fastest Growing Private Firms in the U.S., Inc. Magazine • Top 500 Women-owned Businesses in the U.S., Diversitybusiness.com • Occupational Excellence Achievement Award, National Safety Council • Largest Environmental Firms in the Bay Area (#8), San Francisco Business Times • Environmental Achievement Award (Bronze Medal/Remediation Companies), Environmental Business Journal

Top 200 Environmental Firms (#135), Engineering News-Record (ENR) ‘08 • • Hot Firm 2008, List 100 Fastest Growing A/E/P and Environmental Consulting Firms (#29), Zweig-White • Environmental Achievement Award New Practice Area, Environmental Business Journal

• Largest Environmental Firms in the Bay Area (#6), San Francisco Business Times • 100 Fastest Growing Private Firms in the Bay Area Hall of Fame, San Francisco Business Times

• Top 200 Environmental Firms (#170), Engineering News-Record (ENR) ‘07 • Hot Firm 2007, List 100 Fastest Growing A/E/P and Environmental Consulting Firms (#32), Zweig-White

• Environmental Achievement Award (Silver Medal/Medium Size Companies), Environmental Business Journal • Largest Environmental Firms in the Bay Area (#7), San Francisco Business Times • 100 Fastest Growing Private Firms in the Bay Area (#61), San Francisco Business Times • 2007 Women of Distinction (Cindy Liu, President), East Bay Business Times 2011

Engineering/Remediation Resources Group, Inc.

Office Locations > Martinez, San Francisco, Sacramento, Tustin, Seattle, Spokane, Portland, Honolulu, Phoenix Website > www.errg.com