Plaza 600 Building 600 Stewart Street, Suite 1700 Seattle, Washington 98101 206.728.2674

April 24, 2015

NWRO Toxics Cleanup Program Washington State Department of Ecology 3190 160th Avenue SE Bellevue, Washington 98008-5452

Attention: Ms. Louise Bardy Subject: Application to the Voluntary Cleanup Program 8th & Thomas JV, LLC 777 Thomas Street Seattle, Washington GeoEngineers File No. 20341-001-03

Dear Ms. Bardy: GeoEngineers, Inc. (GeoEngineers), on behalf of the 8th & Thomas JV, LLC, is pleased to submit the attached application to the Voluntary Cleanup Program (VCP) and its supporting UST Removal and Cleanup Action Report for the property located at 777 Thomas Street in Seattle, Washington (Property). This application and supporting documentation comprise 8th & Thomas JV, LLC’s request for a No Further Action opinion regarding the completed cleanup action at the Property.

Please find attached the completed VCP Agreement, VCP Application, GeoEngineers’ UST Removal and Cleanup Action Report, and a map of the Property (taken from Figure 3 of the Cleanup Action Report). We have uploaded our project data to Ecology’s Environmental Information Management system for electronic review.

If you have any questions or comments regarding the enclosed documents, please feel free to contact Ian Young at 206.518.5142 or by e-mail at [email protected].

Sincerely, GeoEngineers, Inc.

Ian Young, LG David A. Cook, LG, CPG Geologist Principal IDY:JAS:DAC:lw

Attachments: Fig 3_Cleanup Excavations Plan Appendix A – VCP Agreement and Application Appendix B – UST Removal and Cleanup Action Report, dated October 31, 2014 Disclaimer: Any electronic form, facsimile or hard copy of the original document (email, text, table, and/or figure), if provided, and any attachments are only a copy of the original document. The original document is stored by GeoEngineers, Inc. and will serve as the official document of record.

APPENDIX A VCP Agreement and Application

VCP AGREEMENT

INSTRUCTIONS: Submit this Agreement (original) to Ecology as part of your Application. Before submitting, enter the Customer’s name and the Site’s address on the first page and sign the Agreement on the second page. If your Application is accepted, then Ecology will do the following: 1) identify the Site and VCP project in the box below; 2) sign the Agreement; and 3) send you a copy of the completed Agreement.

This document constitutes an Agreement between the State of Washington Department of Ecology (Ecology) and 8th and Thomas JV, LLC c/o Macfarlane Partners ______(Customer) to provide informal site-specific technical consultations under the Voluntary Cleanup Program (VCP) for the Site identified below and associated with the following address: 8th and Thomas JV, LLC, 777 Thomas Street, Seattle, WA 98109 ______. The purpose of this Agreement is to facilitate independent remedial action at the Site. Ecology is entering into this Agreement under the authority of the Model Toxics Control Act (MTCA), Chapter 70.105D RCW, and its implementing regulations, Chapter 173-340 WAC. If a term in this Agreement is defined in MTCA or Chapter 173-340 WAC, then that definition shall govern.

Services Provided by Ecology Upon request, Ecology agrees to provide the Customer informal site-specific technical consultations on the independent remedial actions proposed for or performed at the Site consistent with WAC 173- 340-515(5). Those consultations may include assistance in identifying applicable regulatory requirements and opinions on whether the remedial actions proposed for or conducted at the Site meet those requirements. Ecology may use any appropriate resource to provide the Customer with the requested consultative services. Those resources may include, but shall not be limited to, those of Ecology and the Office of the Attorney General. However, Ecology shall not use independent contractors unless the Customer provides Ecology with prior written authorization. In accordance with RCW 70.105D.030(1)(i), any opinions provided by Ecology under this Agreement are advisory only and not binding on Ecology. Ecology, the state, and officers and employees of the state are immune from all liability. Furthermore, no cause of action of any nature may arise from any act or omission in providing, or failing to provide, informal advice and assistance under the VCP.

Payment for Services by Customer The Customer agrees to pay all costs incurred by Ecology in providing the informal site-specific technical consultations requested by the Customer consistent with WAC 173-340-515(6) and 173- 340-550(6). Those costs may include the costs incurred by attorneys or independent contractors used by Ecology to provide the requested consultative services. Ecology’s hourly costs shall be determined based on the method in WAC 173-340-550(2). Ecology shall mail the Customer a monthly itemized statement of costs (invoice) by the tenth day of each month (invoice date) that there is a balance on the account. The invoice shall include a summary of the costs incurred, payments received, identity of staff involved, and amount of time staff spent on the project. The Customer shall pay the required amount by the due date, which shall be thirty (30) calendar days after the invoice date. If payment has not been received by the due date, then Ecology shall withhold

FOR Facility / Site Name: COMPLETION BY Facility / Site No.: ECOLOGY ONLY VCP Project No.:

ECY 070-324 (revised July 2008)

Voluntary Cleanup Program Washington State Department of Ecology Toxics Cleanup Program

APPLICATION FORM

Under the Voluntary Cleanup Program (VCP), the Department of Ecology (Ecology) may provide informal site-specific technical consultations to persons conducting independent remedial actions at a hazardous waste site. Ecology may provide such consultations under the authority of the Model Toxics Control Act (MTCA), Chapter 70.105D RCW, and its implementing regulations, Chapter 173-340 WAC.

To enter the VCP, complete and submit to Ecology a VCP Application. The Application consists of the following two documents:

1. Application Form (including required attachments).  THIS DOCUMENT 2. Agreement. For guidance on how to complete your Application, please refer to the Application Instructions, which are available separately on the VCP web site: www.ecy.wa.gov/programs/tcp/vcp/vcpmain.htm.

Part 1 - ADMINISTRATION

A. Customer Information. The Customer is the person or organization requesting services from Ecology under the VCP, and is responsible for paying the costs incurred by Ecology. The authority and duty of the Customer are explained in the Agreement. Name of Customer: 8th and Thomas JV, LLC c/o MacFarlane Partners What type of entity is the Customer? If the Customer is a “person,” then the Customer shall serve as both

Person the Project Manager and the Project Billing Contact. Please identify this person and their contact information in both Parts 1B and 1C. If the Customer is an “organization,” then please identify the Project Manager in Part 1B and the Project Billing Contact in Part 1C. Organization Both persons must be employed by the Customer organization.

What is the Customer’s involvement at the Site? Please check all that apply.

Property owner Business owner (operator) Past property owner Mortgage holder Future property owner Consultant Property lessee Attorney Other – please specify:

If not the current property owner, is the Customer acting as the agent for the property owner?

Yes No If not the current property owner, is the Customer authorized to grant access to the property?

Yes No

ECY 020-74 (revised May 2013) 1

Part 1 – ADMINISTRATION continued

B. Project Manager Information. Ecology will send this person all official correspondence. This person must either be the Customer or be employed by the Customer. This person may not be an independent contractor hired by the Customer. Please enter the required information below. Name: Britt Wenzler Title: Development Manager Mailing address: 201 Spear Street, 14th Floor City: San Francisco State: CA Zip: 94105 E-mail: Phone: 415.356.2534 Fax: [email protected] C. Project Billing Contact Information. Ecology will send this person monthly invoices. This person must either be the Customer or be employed by the Customer. This person may not be an independent contractor hired by the Customer. Please enter the required information below. Name: Britt Wenzler Title: Development Manager Mailing address: 201 Spear Street, 14th Floor City: San Francisco State: CA Zip: 94105 E-mail: Phone: 415.356.2534 Fax: [email protected] D. Project Consultant Information. Is the Customer a consultant?

Yes If you answered “YES,” then skip to the next question. If you answered “NO” and the Customer hired a consultant to conduct the

No independent remedial action, then enter the required information below. Name: Dave Cook / Ian Young Title: Principal / Project Manager Organization: GeoEngineers, Inc. Mailing address: 600 Stewart Street, Suite 1700 City: Seattle State: WA Zip: 98109 E-mail: [email protected] / Phone: 206-239-3229 / 206-518-5142 Fax: 206-728-2732 [email protected] Do you want Ecology to contact the Project Consultant?

Yes No E. Property Owner Information. Is the Customer the owner of the property where independent remedial action is being conducted?

Yes If you answered “YES,” then enter the type of entity and skip to the next question.

No If you answered “NO,” then please enter all of the required information below. Name: Title: Organization: Mailing address: City: State: Zip: Phone: Fax: E-mail:

ECY 020-74 (revised May 2013) 2

Part 1 – ADMINISTRATION continued

What type of entity is the property owner? Please check only one.

Private County Tribal Municipal Federal Mixed State Public School Other – please specify: F. Request for Written Opinion. Are you requesting a written opinion at this time?

Yes No If you answered “YES,” on what planned or completed remedial action do you want a written opinion? Cleanup of petroleum- and cPAH-contaminated soil at the Property was overseen by GeoEngineers on behalf of 8th and Thomas JV, LLC consistent with the VCP, MTCA, and associated implementing regulations. 8th and Thomas JV, LLC is seeking a No Further Action opinion from Ecology for the completed removal of petroleum- and cPAH-contaminated soil at the site. Please attach to this Application any additional remedial action plans or reports you want Ecology to review. Ecology will base its opinion on the information contained in the Site file, including any information attached to this Application.

If you answered “NO,” please explain why you are enrolling in the VCP at this time and when you expect to request a written opinion from Ecology.

Attach additional pages if necessary.

G. Reporting Requirements. Please comply with the following reporting requirements when requesting written opinions on planned or completed remedial actions:  Licensing. Documents submitted containing geologic, hydrologic, or engineering work must be under the seal of an appropriately licensed professional, as required by Chapters 18.43 and 18.220 RCW.  Data Submittal. Environmental sampling data must be submitted in both a printed form and an electronic form capable of being transferred into Ecology’s data management systems. For instructions on how to submit the data, please refer to the following Ecology web site: www.ecy.wa.gov/programs/tcp/data_submittal/Data_Requirements.htm. Failure to comply with these requirements may result in unnecessary delays. Ecology will not issue a No Further Action (NFA) opinion unless these requirements are satisfied.

ECY 020-74 (revised May 2013) 3

Part 2 - DESCRIPTION OF THE SITE

A. Name of the Site. If Ecology has already identified the Site, enter the name provided by Ecology. Otherwise, enter a suggested name for the Site. You may also include an alternate name.

Name: 8th and Thomas JV, LLC Alternate Name: 777 Thomas Street

B. Location of Property where the Releases Occurred (Source Property). The “source property” is the property where hazardous substances were released into the environment. For example, if petroleum was released from a leaking UST, the source property is the property where the UST was located. Do you know on which property the releases occurred? If you answered “YES,” then please refer to the source property when

Yes answering the following questions. If you answered “NO,” then please refer to the property addressed by your

No remedial action (cleanup) when answering the following questions.

Physical Address. Please enter the physical address of the property below. Street Address: 777 Thomas Street City: Seattle State: WA Zip: 98109 Geographic Position. Please enter the geographical position of the property below. For additional guidance on how to complete this part, please refer to instructions on the VCP web site.

LATITUDE: Degrees: 47 Minutes: 37 Seconds: 13.65 COORDINATES LONGITUDE : Degrees: -122 Minutes: 20 Seconds: 29.23

LOCATION ON PROPERTY: Center of parcel [e.g., point of release or center of parcel] COLLECTION METHOD: Address matching [e.g., GPS or address matching] COLLECTION SOURCE: [i.e., map scale] HORIZONTAL DATUM: [i.e., base reference for coordinate system] ACCURACY LEVEL: [i.e., +/- feet or meters] Legal Descriptions. TRS DATA: Township: 25 Range: 4 Section: 30 Quarter-Quarter: NE

TAX PARCEL #(S): 199120-1080, 199120-1095, 199120-1100, 199120-1085

ECY 020-74 (revised May 2013) 4

Part 2 - DESCRIPTION OF THE SITE continued

C. Identification of Properties affected by the Releases (Affected Properties). An “affected property” is a property affected by the release of hazardous substances on the source property. For example, petroleum released from a leaking UST on one property (source property) may migrate through the soil or ground water onto an adjacent property (affected property).

Do any of the releases affect any properties adjacent to the source property? If you answered “YES,” then please identify below each property that you

Yes know has been affected by the releases on the source property. If you need to identify additional properties, please attach additional pages.

No If you answered “NO,” then skip to the next question.

Unknown If you answered “UNKNOWN,” then skip to the next question.

Address: 1. Tax Parcel(s): Address: 2. Tax Parcel(s): Address: 3. Tax Parcel(s): Address: 4. Tax Parcel(s):

D. Identification of Public Right-of-Ways affected by the Releases. Do any of the releases affect any public right-of-ways (e.g., streets)? Yes No Unknown If you answered “YES” above, please specify below. Otherwise, skip to the next question.

Attach additional pages if necessary. E. Extent of the Site. What is the approximate areal extent of the Site? Please check only one. < 5,000 square feet > 5,000 square feet, but < 1 acre > 1 acre, but < 10 acres > 10 acres

Unknown

ECY 020-74 (revised May 2013) 5

Part 2 - DESCRIPTION OF THE SITE continued

F. Description of Release(s) at the Site. Source of Release(s). What are the source(s) of the release(s) at the Site? Please check all that apply. Point source (e.g., leaking tank) Non-point source (e.g., contaminated soil used as fill) Area-wide lead and arsenic soil contamination (see questions below) Other – please specify: Unknown To the extent known, please describe the source(s) of the release(s): Petroleum- and cPAH-contamination from three heating oil USTs.

Attach additional pages if necessary. Circumstances of Release(s). To the extent known, please describe below the circumstances of the release(s).

Historic releases from heating oil USTs.

Attach additional pages if necessary. Circumstances of Release Discovery. To the extent known, please describe below the circumstances of the discovery of the release(s).

Petroleum and cPAHs were detected in soil at concentrations exceeding MTCA Method A cleanup levels in 2010 and 2012 explorations.

Attach additional pages if necessary.

ECY 020-74 (revised May 2013) 6

Part 2 - DESCRIPTION OF THE SITE continued

Area-Wide Soil Contamination. For information about the area-wide soil contamination project, please refer to the following web site: www.ecy.wa.gov/programs/tcp/area_wide/area_wide_hp.html. For information about the Tacoma Smelter Plume (TSP) and the associated Management Plan, please refer to the following web site: www.ecy.wa.gov/programs/tcp/sites/tacoma_smelter/ts_hp.htm. Is the Site located within an area affected by smelter emissions, such as the TSP area?

Yes No Unknown To determine whether your Site is located within the TSP area, please refer to the map on the TSP web site identified above. Is the Site located on a former apple or pear orchard in operation prior to 1947?

Yes No Unknown Is the Site impacted by area-wide arsenic and/or lead soil contamination?

Yes No Unknown G. Nature and Extent of Hazardous Substances Released at the Site. The following questions refer to conditions after the release, but prior to any cleanup, of the hazardous substances at the Site. Hazardous Substances and Affected Media. To the extent known, please identify in the following table the hazardous substances released at the Site and the media (e.g., soil) impacted by those substances. Use the codes at the bottom of the table. AFFECTED MEDIA HAZARDOUS SUBSTANCE GROUND SURFACE SOIL SEDIMENT AIR WATER WATER EXAMPLE: Benzene C S N/A N/A B Diesel-range petroleum hydrocarbons C N/A N/A N/A N/A Heavy oil-range petroleum hydrocarbons C N/A N/A N/A N/A cPAHs C N/A N/A N/A N/A VOCs O N/A N/A N/A N/A Metals B N/A N/A N/A N/A

When identifying the affected media in the table above, please use one of the following codes:  C = confirmed, above cleanup level  B = confirmed, below cleanup level  O = confirmed, not present  S = suspected  N/A = not suspected  U = unknown

ECY 020-74 (revised May 2013) 7

Part 2 - DESCRIPTION OF THE SITE continued

Drinking Water. Does any of the contamination at the Site pose a threat or potential threat to an existing drinking water source (ground water or surface water)? Yes No Unknown If you answered “YES” above, what type of drinking water system is threatened by the contamination? Please check all that apply. Single Family Public Drinking Water Supply If you checked “Public Drinking Water Supply” above, is the contamination located within or upstream of a 10-year wellhead protection area? Yes No Unknown To help answer the above question or if you answered “Yes” to that question, then go to https://fortress.wa.gov/doh/eh/dw/swap/maps/ or call (800) 521-0323. Indoor Air. Are contaminant odors present in any buildings, manholes, or other confined spaces? Yes No Unknown If you answered “YES” above, please specify:

Attach additional pages if necessary. H. Maps of the Site. Please attach to this application map(s) that identify, to the extent known, the following:

 The location of the site.  The properties, and any public right-of ways, affected by the site.  The source(s) of the release(s) at the site.  The nature and extent of contamination at the site.  Any human or ecological receptors impacted by the site (e.g., drinking water wells).  The physical characteristics of the site (e.g., property lines, building and road outlines, surface water bodies, water supply wells, ground water flow direction, and utility right-of-ways).  The properties adjacent to the site and the uses of those properties (e.g., gas station, dry cleaner, residential).

ECY 020-74 (revised May 2013) 8

Part 3 – OPERATIONAL HISTORY OF THE SITE

A. Current Use of Source Property. Note that the following questions refer only to the Source Property, not other properties affected by the Site. Answer these questions to the best of your ability. Current Property Owners. To the extent known, please identify below the current owner of the source property. Name: Britt Wenzler Title: Development Manager Organization: 8th and Thomas JV, LLC c/o Macfarlane Partners Mailing address: 201 Spear Street, 14th Floor City: San Francisco State: CA Zip code: 94105 Phone: 415.356.2534 Current Business Owner (Operator). To the extent known, please identify below the current owner of the business located on the source property. Name: N/A Title: Organization: Mailing address: City: State: Zip code: Phone: Current Business Operations. To the extent known, please identify below the current operations of the business located on the source property. What is the current land use of the source property? Please check all that apply. Residential School Commercial Childcare facility Industrial Park Agricultural Other – please specify: Property is under construction for a multistory high rise apartment complex with retail on the

ground floor and a two levels of underground parking garage Is there a currently operational commercial or industrial business located on the source property?

Yes No Unknown

If you answered “YES” above, please identify in the following table the current business operations using the North American Industry Classification System (NAICS) codes and specifying the operations.

NAICS CODE DESCRIPTION OF OPERATIONS EX: 447110 Gasoline Stations with Convenience Stores

ECY 020-74 (revised May 2013) 9

Part 3 – OPERATIONAL HISTORY OF THE SITE continued

Is there a solid waste handling facility located on the Source Property? Yes No Unknown If you answered “YES” above, please identify:

Attach additional pages if necessary. Is there a dangerous waste treatment, storage, or disposal facility located on the Source Property? Yes No Unknown If you answered “YES” above, please identify:

Attach additional pages if necessary. Regulation of Current Business Operations. Does the business operate under any federal, state, or local permits related to the release of hazardous substances into the environment (e.g., NPDES permit)? Yes No Unknown If you answered “YES” above, please specify the regulated operation, the name of the permit, and the date it was issued in the table below. REGULATED OPERATION PERMIT DATE ISSUED EX: Wastewater discharge NPDES permit 02/02/02

Has a state or federal notice of enforcement action (e.g., notice of violation) ever been issued related to the release of hazardous substances at the business? Yes No Unknown If you answered “yes” above, please specify (notice and year issued): Have business operations resulted in any other spills or other unpermitted releases on the source property? Yes No Unknown If you answered “YES” above, please specify in the table below.

RELEASE DATE OF RELEASE STATUS OF RELEASE

ECY 020-74 (revised May 2013) 10

Part 3 – OPERATIONAL HISTORY OF THE SITE continued

Storage Tank Information. In table below, please identify all above ground storage tanks (AST) and underground storage tanks (UST) that have been used for storing hazardous substances on the source property, irrespective of whether the tanks are still in use or in place. If you are unable to provide answers to specific questions regarding a tank, please enter “U” for unknown. IDENTIFICATION STATUS AND CLOSURE RELEASES Type Size DATE IN USE DATE CLOSURE PAST CURRENT Hazardous Substance TANK ID (AST/UST) (Gallons) INSTALL (Y/N) CLOSED METHOD (*) (Y/N) (Y/N) EX: Diesel UST 10,000 4 02/87 N 05/98 Removed Y N Closed-in-place Not Heating Oil UST 750 1 N 10/02 (2002); Y N known removed (2014) Closed-in-place Not Heating Oil UST 1,000 2 N 10/02 (2002); Y N known removed (2014) Not Heating Oil UST 675 3 N 12/10 Removed Y N known

(*) Options = Removed or Closed in Place B. Past Use of Source Property. Note that the following questions refer only to the Source Property, not other properties affected by the Site. Please answer these questions to the best of your ability. Past Property Owners. To the extent known, please identify below the owner of the source property at the time the release occurred. Name: Unknown – the subject property is a compilation of four Title: parcels that each had various private owners through history Organization: Mailing address: City: State: Zip code: Phone: Fax: E-mail: Past Business Owners (Operators). To the extent known, please identify below the owner of the business (operator) at the time the release occurred. Name: Title: Organization: Mailing address: City: State: Zip code: Phone: Fax: E-mail: Identification of Past Business Operations. Please identify in the following table the past operations of businesses located on the source property using the North American Industry Classification System (NAICS) codes and/or specifying the operations. NAICS CODE DESCRIPTION OF OPERATIONS EX: 447110 Gasoline Stations with Convenience Stores 811111 General automotive repair 811121 Automotive body, paint, and interior repair and maintenance 323111 Commercial printing

ECY 020-74 (revised May 2013) 11

Part 3 – OPERATIONAL HISTORY OF THE SITE continued

C. Future Use of Source and Affected Properties. The following questions refer to both source and affected properties. Please answer these questions to the best of your ability. Will any ownership interest in the source or affected properties be conveyed prior to, or upon completion of, the cleanup? Yes No Unknown If you answered “YES” above, please specify:

Attach additional pages if necessary. Will any of the source or affected properties, or portions of those properties, be redeveloped as part of the cleanup? Yes No Unknown If you answered “YES” above, please specify the proposed land use below. Please check all that apply. Residential School Commercial Childcare facility Industrial Park Agricultural Other – please specify: Please also specify the activities proposed for that land use: The Subject Property is under redevelopment as a multi-story building that will be utilized for residential and retail/office spaces. There will be a two levels of underground parking garage.

Attach additional pages if necessary.

ECY 020-74 (revised May 2013) 12

Part 4 – ADMINISTRATIVE HISTORY OF THE SITE Have you previously reported the release(s) of hazardous substances at the Site to Ecology?

Yes – If so, when? No Unknown Has the cleanup of the Site, or any portion of the Site, ever been managed under the VCP? Yes – If so, please specify the VCP Project Number: No

Unknown

Has the cleanup of the Site, or any portion of the Site, ever been managed under a federal or state order or decree? Yes – If so, please specify the type and docket number: No

Unknown

Part 5 – DESCRIPTION OF INDEPENDENT REMEDIAL ACTIONS AT THE SITE

A. Scope of Remedial Actions. Do you plan to characterize and address all of the contamination at the Site, including any contamination located on affected adjacent properties, as part of the VCP project? Yes No Unknown If you answered “NO” above, please describe below the scope of the VCP project, including the contamination (properties, portions of a property, media and/or hazardous substances) that you DO NOT plan on characterizing and/or addressing as part of the VCP project. Please include additional pages if necessary.

Attach additional pages if necessary.

ECY 020-74 (revised May 2013) 13

Part 5 – DESCRIPTION OF INDEPENDENT REMEDIAL ACTIONS AT THE SITE continued

B. Status of Remedial Actions. What is the current status of remedial actions at the site? Please check all that apply in the table below. REMEDIAL ACTION PLANNED ONGOING COMPLETED NOT APPLICABLE INITIAL RESPONSE (UST ONLY) X INTERIM ACTION X REMEDIAL INVESTIGATION X FEASIBILITY STUDY X CLEANUP ACTION X C. Documentation of Remedial Actions. Please list in the table below all known remedial action plans or reports produced for the site, including:  The title of the plan or report,  The author (e.g. consulting firm) of the plan or report,  The date the plan or report was produced,  Whether the plan or report has been submitted to Ecology,  The date the plan or report was submitted to Ecology.

SUBMITTED TO ECOLOGY TITLE AUTHOR DATE Y/N? DATE EX: John Doe’s Site: Remedial Investigation Work Plan Mom’s Consulting Firm 02/20/05 NO N/A UST Removal and Cleanup Action Report, 1. 8th and Thomas Development, GeoEngineers, Inc. 10/31/14 Y Attached Seattle, Washington 2. 3. 4. 5. 6. 7. 8. 9. 10.

ECY 020-74 (revised May 2013) 14

APPENDIX B UST Removal and Cleanup Action Report

UST Removal and Cleanup Action Report

8th and Thomas Development Seattle, Washington for 8th and Thomas JV, LLC c/o MacFarlane Partners

October 31, 2014

UST Removal and Cleanup Action Report

8th and Thomas Development Seattle, Washington

for 8th and Thomas JV, LLC c/o MacFarlane Partners

October 31, 2014

Plaza 600 Building 600 Stewart Street, Suite 1700 Seattle, Washington 98101 206.728.2674 UST Removal and Cleanup Action Report 8th and Thomas Development Seattle, Washington File No. 20341-001-03

October 31, 2014

Prepared for:

8th and Thomas JV, LLC c/o MacFarlane Partners 509 Fairview Avenue North Seattle, Washington 98109

Attention: Antonio Rubbo

Prepared by:

GeoEngineers, Inc. Plaza 600 Building 600 Stewart Street, Suite 1700 Seattle, Washington 98101 206.728.2674

Fasih Khan, Environmental Engineer Project Manager

David A. Cook, LG, CPG Principal

FK:DAC:leh

Two hard copies submitted (one copy also submitted electronically by email)

Disclaimer: Any electronic form, facsimile or hard copy of the original document (email, text, table, and/or figure), if provided, and any attachments are only a copy of the original document. The original document is stored by GeoEngineers, Inc. and will serve as the official document of record.

Copyright© 2014 by GeoEngineers, Inc. All rights reserved.

Table of Contents

EXECUTIVE SUMMARY ...... 1 1.0 INTRODUCTION ...... 1 2.0 BACKGROUND ...... 1 2.1. Historical Operations and Property Uses ...... 1 2.2. Environmental Setting ...... 1 2.2.1. Site 1 ...... 3 2.2.2. Site 2 ...... 3 2.2.3. Site 3 ...... 3 2.3. Geologic Setting ...... 3 2.3.1. Soil Conditions ...... 3 2.3.2. Groundwater Conditions ...... 3 3.0 PROJECT OBJECTIVE ...... 4 4.0 SCOPE OF SERVICES ...... 4 5.0 CLEANUP LEVELS ...... 6 6.0 EXCAVATION PLANNING AND PREPARATION ...... 6 6.1. Demolition ...... 6 7.0 CLEANUP ACTION ...... 6 7.1. Underground Storage Tanks (USTs) Removal and Closure ...... 6 7.2. UST 1 ...... 7 7.2.1. Initial Observations and Characterization Soil Sampling Results ...... 7 7.2.2. Remedial Excavation and Confirmation Soil Sample Results ...... 7 7.3. UST 2 ...... 7 7.3.1. Initial Observations and Characterization Soil Sampling Results ...... 7 7.3.2. Remedial Excavation and Confirmation Soil Sample Results ...... 8 7.3.3. Area North of UST 2 Remedial Excavation ...... 8 7.4. Hot Spot ...... 8 7.4.1. Initial Observations and Characterization Soil Sampling Results ...... 8 7.4.2. Remedial Excavation and Confirmation Soil Sample Results ...... 9 8.0 WASTE DISPOSAL ...... 9 9.0 CONCLUSIONS AND RECOMMENDATIONS ...... 10 9.1. Soil Conditions ...... 10 9.2. Groundwater Conditions ...... 10 10.0 LIMITATIONS ...... 10 11.0 REFERENCES ...... 11

October 31, 2014| Page i File No. 20341-001-03 LIST OF TABLES Table 1. UST 1 – Summary of Soil Field Screening Results and Chemical Analytical Data Table 2. UST 2 – Summary of Soil Field Screening Results and Chemical Analytical Data Table 3. Hot Spot – Summary of Soil Field Screening Results and Chemical Analytical Data

LIST OF FIGURES Figure 1. Vicinity Map Figure 2. Pre-Cleanup Site Plan Figure 3. Post Cleanup Site Plan Figure 4. Remedial Excavations Plan and Cross Sections

APPENDICES Appendix A. USTs Removal/Closure Documents and Site Assessment Checklist Appendix B. Cleanup Action Photographs Appendix C. Contaminated Soil Disposal Weight Tickets Appendix D. Field Screening Procedures Appendix E. Chemical Analytical Data Appendix F. Report Limitations and Guidelines for Use

October 31, 2014| Page ii File No. 20341-001-03

EXECUTIVE SUMMARY

This report documents a 2014 cleanup action consisting of the removal of two, un-regulated, formerly closed-in-place heating oil underground storage tanks (USTs), and excavation and disposal of petroleum contaminated soil at the 8th and Thomas redevelopment project (herein referred to as the “Property”) located in Seattle, Washington. In addition to the petroleum contaminated soil associated with the USTs, carcinogenic polycyclic aromatic hydrocarbons (cPAHs) contaminated soil was removed for permitted disposal to facilitate the construction project. The cPAH contaminated soil appears to be associated with an historic petroleum release from a former UST that had been removed from the southern-most parcel of the Property in December 2010. The Property is comprised of the following properties located at: 777 Thomas Street, 223 8th Avenue North, the parking lot between these properties, and 215 8th Avenue North located in the South Lake Union neighborhood in Seattle, Washington. The Property is shown relative to surrounding physical features on the Vicinity Map, Figure 1. The 8th and Thomas project layout, including approximate historic exploration and former heating oil UST(s) locations, is shown on the Pre-Cleanup Site Plan, Figure 2.

8th and Thomas JV, LLC, a private developer company, is currently redeveloping the Property with a multi-story building which will be utilized for residential and retail/office spaces. The building will have two levels of below grade parking. The cleanup activities were completed as part of redevelopment of the Property. Based on the findings of previous environmental investigations (completed by other consultants) and our observations during construction activities, the Property includes three “sites” (as defined by the Model Toxics Control Act [MTCA]) where hazardous substances have come to be located. All three “sites” as shown in Figures 3 and 4 are contained within the bounds of the Property and include:

■ Site 1: UST 1 – Heating Oil Contamination Site ■ Site 2: UST 2 – Heating Oil Contamination Site ■ Site 3: Hot Spot – cPAHs Contamination Site

Based on our observations, field screening and chemical analytical results; it is our opinion that remedial action at the three locations (“sites”) at this Property to remove 820 tons of petroleum and cPAH contaminated soil was successfully completed in accordance with Washington State MTCA cleanup regulations, Chapter 173-340 WAC (Washington Administrative Code).

Groundwater was not encountered in borings completed to approximate depths of 35 feet below original ground surface (bgs) during previous investigations performed by other consultants between 2003 and 2012, at the Property. Groundwater was not encountered during remedial excavation (depth ranging from 20 to 26 feet bgs) and construction excavation (depth ranging from 30 to 32 feet bgs) in 2014, at the Property. According to the United States Geological Survey (USGS), the groundwater surface at a former monitoring well (USGS Station 473710122200601 25N/04E-30R01) located in the vicinity and downgradient from the Property was measured at an approximate depth of 78 feet bgs. Therefore, based on the previous investigations reports, field observations during remedial and mass excavation activities, and historical USGS data, the groundwater surface is deeper than 50 feet bgs, and could be as deep as 78 feet bgs at the Property.

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Based on the removal of the source (USTs and petroleum and cPAH contaminated soil), chemical analytical results demonstrating that contamination had been removed, depth of groundwater and separation between the former soil contamination and groundwater surface, it is our opinion that the potential for groundwater impacts due to historical releases from the former USTs is unlikely. Therefore it is our opinion that no further remedial action, nor groundwater monitoring, is warranted at the Property.

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1.0 INTRODUCTION

This UST Removal and Cleanup Action Report documents the removal of two, un-regulated, formerly closed-in-place heating oil underground storage tanks (USTs), and excavation and permitted disposal of petroleum and carcinogenic polycyclic aromatic hydrocarbon (cPAHs) contaminated soil at the 8th and Thomas redevelopment project (herein referred to as the “Property”). The Property is comprised of four properties located at 777 Thomas Street (King county tax parcel #199120-1080), 223 8th Avenue North (parcel #199120-1095), the parking lot (parcel #199120-1085) located between these properties, and 215 8th Avenue North (parcel #199120-1100) in Seattle, Washington. The Property is bounded by Thomas Street to the north, 8th Avenue to the east, Denny Park Lutheran Church to the south, and a public right-of-way alley to the west. The Property is shown relative to surrounding vicinity in Figure 1. Property layout and former physical features including approximate historic exploration and former heating oil UST(s) locations are generally shown in Figure 2.

8th and Thomas JV, LLC is currently redeveloping the Property with a multi-story building which will be utilized for residential and retail/office spaces. The building includes two below grade parking levels. The remedial activities were conducted at the Property from August 26 to September 25, 2014 during construction for redevelopment of the property. This remedial action was conducted as an independent cleanup under the Model Toxics Control Act (MTCA). This report should be submitted to Washington State Department of Ecology (Ecology) to comply with UST closure regulations/requirements. If a formal opinion is desired from Ecology, then entry into Ecology’s Voluntary Cleanup Program (VCP) is prudent.

2.0 BACKGROUND

2.1. Historical Operations and Property Uses Several environmental studies were completed on the individual parcels/properties composing the Property. The studies were completed to evaluate potential sources of contamination and to characterize soil beneath the properties. Historic uses of the 8th and Thomas northern and central tax parcels (199120-1080, Former Complete Automotive Building; 1085, parking lot; 1095, Former Bernard Imports Bodyworks) since the 1930s, included commercial light industrial manufacturing, appliance sales and service, automobile repair and service, parking space.. The southern-most tax parcel (199120-1100; Former Holly Press Building) has been in commercial use as a printing service since 1949. The 2011 Geosyntec Phase I Environmental Site Assessment (ESA) identified several potential sources of contamination on and/or adjacent to the property, including:

■ former auto repair facilities, ■ former heating oil USTs, ■ waste materials and chemical storage shed/areas.

2.2. Environmental Setting Multiple investigations were completed by other consultants at the Property between 2003 and 2012 by various consultants namely Environmental Associates, Inc. (EAI), The Riley Group, Inc. (RGI), and Geosyntec. The 2003 EAI report was presented as an Appendix in the 2011 Geosyntec report and the 2010 and 2011

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RGI reports were presented as an Appendix in 2012 Geosyntec report. Following is a brief summary of GeoEngineers, Inc.’s (GeoEngineers) review of the historical environmental reports:

■ According to the 2003 EAI report, two heating oil underground storage tanks were present at the Property; one on the north parcel (occupied at that time by Graphic Options) and another one on the south-central parcel (occupied at that time by Bernard’s Imports and Bodyworks). The two USTs were closed-in-place by filling them with inert material (concrete/slurry) in October 2002 (according to the 2003 EAI report report). No information relative to soil and/or groundwater testing during tank closure was available. ■ According to RGI’s 2010 Phase I ESA, a previously unknown and abandoned heating oil UST was observed in the parking lot located west of the Holly Press building in southern-most parcel of the Property. ■ According to the RGI 2011 Phase II Subsurface Investigation and Independent Cleanup Report, the abandoned heating oil UST in the southern-most parcel of the Property was removed in December 2010, followed by remedial excavation and removal of approximately 45 tons of petroleum-impacted soil from the UST location and vicinity. This independent cleanup was completed by RGI and authorized by Catalyst Marketing and Washington Trust Bank. Subsequently, the State of Washington Pollution Liability Insurance Agency (PLIA) concluded in a letter dated March 16, 2011 that “at this time, there is no apparent contamination that poses a threat to human health and the environment and, therefore, no further action is required”. The letter also stated “PLIA’s conclusion relates only to the voluntary cleanup performed in the vicinity of this the 675-gallon that was used to store fuel for the Former Holly Press Building located at 215 8th Avenue N, Seattle WA prior to its removal on December 28, 2010”. ■ The 2011 Geosyntec Limited Scope Phase II ESA performed at three parcels of the Property included the following (listed by tax parcel/address): 199120-1080/777 Thomas Street; -1085/parking lot; -1095/223 8th Avenue North) documented no detectable concentrations of total petroleum hydrocarbons (TPH), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and volatile organic compounds (VOCs) within laboratory detection limits in soil samples obtained from these parcels of the Property. ■ The 2012 Geosyntec Limited Scope Phase II ESA performed at the southern-most parcel (199120-1100; 215 8th Avenue North) of the Property documented diesel-range hydrocarbons in SB-1 and SB-6, and metals in SB-2 and SB-3 at concentrations below the MTCA Method A cleanup level, and cPAHs at concentrations that slightly exceeded MTCA Method A cleanup levels in soil samples obtained from SB-1.

Based on the findings of these previous studies, GeoEngineers identified three “sites” (as defined by the MTCA) where hazardous substances have come to be located, at the Property. The term “site” at this Property refers to the location of media (soil) that is contaminated by a specific hazardous substance at concentrations above MTCA Method A cleanup levels. “Sites” are not controlled or distinguished by property boundary, but where contamination has come to be located. Identified sites at the Property include:

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2.2.1. Site 1 ■ UST 1 – Heating Oil Contamination Site: Diesel-range (heating oil) hydrocarbon contaminated soil associated with UST 1 was identified in northwest portion of the Property at depths ranging from approximately 15 feet below the ground surface ([bgs] Elevation 68, NAVD88) to 20 feet bgs (Elevation 63, NAVD88).

2.2.2. Site 2 ■ UST 2 – Heating Oil Contamination Site: Diesel-range (heating oil) hydrocarbon contaminated soil associated with UST 2 was identified in southwestern portion of the Property at depths ranging from approximately 15 feet bgs (Elevation 70, NAVD88) to 26 feet bgs (Elevation NAVD88).

2.2.3. Site 3 ■ Hot Spot – cPAHs Contamination Site: Residual benzo(a)pyrene contaminated soil and petroleum-impacted soil was identified in the southern-most portion of the Property at depths ranging from approximately 5 to 5.5 feet bgs (Elevations 76 and 75.5, NAVD88). A former heating oil UST that was removed from this location in December 2010 is the source of this residual contamination.

Based on field screening evidence and chemical analytical results, contaminated soil associated with the above-mentioned three “sites” at the Property was successfully removed and transported off-property for permitted disposal during the 2014 redevelopment of the Property. The approximate confirmation soil sample locations and final limits of remediation excavation at these three sites relative to the Property are generally shown in Figures 3 and 4.

2.3. Geologic Setting Multiple soil borings were completed during various environmental investigations, at the Property. Following is a brief summary of soil and groundwater conditions based on 2011 and 2012 reports.

2.3.1. Soil Conditions Subsurface materials encountered in the borings were clayey silt, and sand typical of a glacial till depositional environment. According to the 2011 and 2012 Geosyntec reports, sandy gravel was encountered at an approximate depth of 6 feet bgs with overlying fill (brown silty sand with varying amounts of gravel) in west-northwest portions of the Property. Gray clayey silt starting at depths ranging from 1- to 2-feet bgs and extending to the maximum depth explored was prominent in majority of the explorations completed at the Property. Glacial till was encountered in couple of borings starting at an approximate depth of 17.5 feet bgs in north portion of the Property.

2.3.2. Groundwater Conditions Groundwater was not encountered in any of the multiple borings completed at the property during previous environmental investigation. The maximum depth explored was approximately 35 feet bgs.

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3.0 PROJECT OBJECTIVE

The objective of this cleanup action is to protect human health and the environment in accordance with (MTCA, Washington Administrative Code (WAC) 173-340, while allowing construction to proceed as planned. Remedial excavation was the preferred cleanup action alternative to:

1. Remove the two closed-in-place USTs, 2. Remove known contaminated soil from the three sites (Section 2.2) at the Property, and 3. Allow for redevelopment of the Property.

4.0 SCOPE OF SERVICES

The primary purpose of our services was to oversee the USTs removal, and remedial excavation monitoring. Our services included assisting the contractor with identifying the petroleum contaminated soil, segregating contaminated soil (as defined in Section 5.0) from clean soil, obtaining confirmatory soil samples from the limits of the remedial excavations and evaluation of the chemical analytical results. Our scope of services included the following activities:

1. Prepared a safety plan for use by GeoEngineers personnel during construction. 2. Provided disposal facility support for soil removed during construction activities and during remedial excavation of contaminated or impacted soil on the subject property. 3. Prepared a Construction Contingency Plan (CCP) for soil handling during mass excavation for construction of the proposed building. The CCP is intended to be used by the general contractor to guide the soil handling and disposal activities. In addition to recommendations for soil handling and disposal, the CCP will also include notification procedures and protocol if unanticipated contaminated soil or USTs are encountered during construction. 4. Provided the Washington State Department of Ecology’s (Ecology) UST Site Check/Site Assessment paperwork to Ecology and documented the removal of two closed in-place heating oil USTs located on the western portion of the property. The USTs were closed in-place in 2002 and that chemical analysis of soil samples obtained in the vicinity of the USTs indicate contaminated soil is present surrounding one of the USTs. This included the following scope items: a. Submitted the required 30-day notification paperwork (for UST removal); and if needed, a request for waiver from the 30-day notice requirement to the Ecology. The Request for Waiver paperwork was completed so the USTs could be removed as soon as the construction schedule allowed, prior to the 30-day waiting period following discovery required by Ecology. b. A GeoEngineers’ environmental representative who is a registered Washington State UST Site Assessor performed the following: i. Observed and documented the removal of the USTs in general accordance with WAC 173-360 and Ecology’s “Guidance for Site Checks and Site Assessments for Underground Storage Tanks,” dated February 1991 and revised in April 2003. ii. Field screened soil at the limits of the UST removal excavation using water sheen and headspace vapor screening methods.

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iii. Obtained up to 13 soil samples at the limits of the UST excavations to characterize soil at the limits of the excavation. Soil samples were submitted on a standard turnaround time for analytes required for diesel-range petroleum hydrocarbon releases identified in Table 830-1 of MTCA WAC 173-340-900 (Diesel-range petroleum hydrocarbons using Northwest Method NWTPH-Dx). iv. Evaluated the chemical analytical results relative to MTCA Method A cleanup level. 5. GeoEngineers staff observed the remedial excavation of documented contaminated soil located in the vicinity of the two USTs. This task included: a. Field screen soil during mass-excavation activities using water sheen and headspace vapor screening methods to identify and segregate potentially contaminated soil. b. Obtained confirmation soil samples from the limits of the remedial excavation for chemical analysis of the following: i. Diesel-range petroleum hydrocarbons using Northwest Method NWTPH-Dx. c. Evaluated the chemical analytical results relative to MTCA Method A cleanup levels. 6. Documented the excavation of contaminated soil located in the vicinity of the parking lot of the Holly Press building. A UST was removed from this area in December 2010 and that residual diesel-oil range petroleum-impacted and cPAHs contaminated soil remains in place at the limits of the 2010-2011 remedial excavation. This former UST location and extent of remedial excavation are shown in attached Figure 2. This UST is different than the ones identified in scope item 2. This task item included the following: a. Observed and documented the excavation of contaminated and impacted soil. b. Field screened soil during the remedial excavation using water sheen and headspace vapor screening methods to evaluate the potential vertical and lateral extent of the contaminated area. c. Obtained up to 14 soil samples at the limits of the excavation to confirm the successful removal of contaminated soil and submit the soil samples for chemical analysis of the following: i. Diesel-range petroleum hydrocarbons using Northwest Method NWTPH-Dx; ii. Polycyclic aromatic hydrocarbons (PAHs) using U.S. Environmental Protection Agency (EPA) Method 8270D/SIM. iii. Evaluate the chemical analytical results relative to MTCA Method A cleanup level. 7. Prepare a UST Closure Report and Cleanup Action Report for submittal to Ecology related to the remediation of contaminated soil located in the vicinity of the USTs and near the Holly Press parking lot.

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5.0 CLEANUP LEVELS

For the purposes of solid waste handling for the remedial excavation, soil was managed as contaminated if it contained detectable concentrations of diesel- and heavy oil-range hydrocarbons and/or PAHs. MTCA Method A soil cleanup levels for unrestricted land use were selected for data evaluation purposes during the cleanup. Cleanup levels for the contaminants are shown in Tables 1, 2, and 3.

6.0 EXCAVATION PLANNING AND PREPARATION

6.1. Demolition All surface features including landscaping planters, building(s), and subsurface utilities associated with the building(s) within the planned construction area were demolished prior to mass excavation. Santa Fe Construction (Santa Fe) was the earthwork contractor subcontracted by Walsh Construction (Walsh), the general construction contractor.

7.0 CLEANUP ACTION

7.1. Underground Storage Tanks (USTs) Removal and Closure Two documented single-wall steel un-regulated heating oil USTs (UST 1 in northwest portion of the Property and UST 2 in west portion of the Property) that were formerly closed-in-place (concrete/slurry filled) by AAA Tank service in October 2002 were removed from the Property by Tankwise, an accredited UST decommissioning contractor (License No. TANKWL*008DG) on August 28, 2014. A Washington State Site Assessor from GeoEngineers monitored tank removal and performed a UST Site Assessment. UST closure and removal documents associated with the two USTs, Site Assessment Notice and Site Assessment Checklist are presented in Appendix A. The approximate locations of the USTs are shown relative to the Property in Figure 2.

The following sections of this report document the removal of tanks UST 1 and UST 2. Characterization and confirmation soil samples obtained from the former UST locations and from the final limits of the remedial excavations were submitted to Fremont Analytical laboratory in Seattle, Washington for chemical analysis of diesel- and heavy oil-range hydrocarbons. Field screening and chemical analytical results of characterization soil samples obtained during remedial excavation activities and confirmation soil samples representing soil conditions at the final limits of the UST 1 and UST 2 remedial excavations are summarized in Tables 1 and 2, respectively. Approximate locations of characterization and confirmation soil samples and the final limits of each remedial excavation are shown relative to the Property on Figure 3, and a cross-section of each remedial excavation is shown in Figure 4.

Cleanup action photographs are presented in Appendix B. Copies of contaminated soil load disposal weight tickets are presented in Appendix C. Field screening methods and soil sampling procedures are described in Appendix D. Copies of the laboratory reports and our review of the laboratory quality control data are presented in Appendix E.

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7.2. UST 1

7.2.1. Initial Observations and Characterization Soil Sampling Results Santa Fe (the remedial excavation contractor) excavated approximately 9 feet of overburden soil to access the top of UST 1. Field screening results of overburden soil yielded no sheen, no petroleum odor and headspace vapor readings of <1 parts per million (ppm). Based on field screening results, Santa Fe considered the overburden soil as clean and stockpiled on-site for possible reuse and/or off-site disposal. UST 1 was an unregulated, single-wall steel tank measuring approximately 14 feet in length and 5 feet in diameter (approximate volume of 2,000-gallons) with a fill port and associated product lines observed. During removal, the tank was observed filled with concrete/slurry and in poor structural condition with significant rust and multiple pin holes at the base. The top of the UST was observed at an approximate depth of 10 feet bgs (Elevation 73 feet, NAVD88). Elevation of the local ground surface is approximately 83 feet.

A characterization soil sample (UST1-15.0) was obtained from the base of the tank pit following tank removal. Field screening results of the soil sample yielded heavy sheen and petroleum odor. According to the chemical analytical results, heating oil-range hydrocarbons were detected in at a concentration (66,700 milligrams per kilogram [mg/kg]), greater than the MTCA Method A Cleanup Level of 2,000 mg/kg. Analytical results of the characterization sample confirmed a release had occurred from UST 1, and that remedial excavation activities were required to remove soil with hydrocarbon concentration exceeding the MTCA Method A Cleanup Level.

7.2.2. Remedial Excavation and Confirmation Soil Sample Results GeoEngineers monitored excavation of petroleum-contaminated soil (represented by sample UST1-15.0) at the former UST 1 location. Santa Fe, the earthwork contractor completed remedial excavation activities. During remedial excavation, field screening results of shallow soil (depth ranging from 3 to 6 feet bgs) in a limited 4 feet long (north-south) by 4 feet wide (east-west) area located immediately north of UST 1 yielded slight sheen and slight petroleum odor. Based on field screening results, Santa Fe considered soil from this area as contaminated and transported to Cemex for permitted disposal. This area eventually became part of the final remedial excavation limits at former UST 1 location. The final limits of UST 1 remedial excavation measured approximately 15 feet long (north-south) by 20 feet wide (east-west) and depth ranged from approximately 16 feet bgs (Elevation 67, NVD88) and 20 feet bgs (Elevation 63, NVD88). Groundwater was not encountered in UST 1 remedial excavation. Petroleum-contaminated soil excavated from former UST 1 location was transported to CEMEX in Everett, Washington for permitted disposal.

Five confirmation soil samples (EX-24-16.0 through EX-27-16.0, and EX-28-20.0) were obtained from the final limits of the UST 1 remedial excavation. Diesel- and heavy oil-range hydrocarbons were not detected in the confirmation samples.

7.3. UST 2

7.3.1. Initial Observations and Characterization Soil Sampling Results Santa Fe excavated approximately 9 feet of overburden soil to access UST 2. Field screening results of overburden soil yielded no sheen, no petroleum odor and headspace vapor readings of 0 ppm. Based on field screening results, Santa Fe considered the overburden soil as clean and stockpiled onsite for possible reuse and/or offsite disposal. UST 2 was an unregulated, single-wall steel tank measuring approximately

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8 feet in length and 4 feet in diameter (approximate volume 750-gallons) with a fill port and vent pipe observed. During removal, the tank was observed filled with concrete/slurry and in poor structural condition with significant rust and multiple large holes at the base. The top of the UST was observed at an approximate depth of 10 feet bgs (Elevation 75 feet, NAVD88). Elevation of the local ground surface is approximately 85 feet.

A characterization soil sample (UST2-15.0) was obtained from the base of the tank pit following tank removal. Field screening results of the soil sample yielded a heavy sheen and petroleum odor. According to the chemical analytical results, heating oil-range hydrocarbons were detected at a concentration (12,700 mg/kg), greater than the MTCA Method A Cleanup Level of 2,000 mg/kg. Analytical results of the characterization sample confirmed a release had occurred from UST 2, and that remedial excavation activities were required to remove soil with hydrocarbon concentration exceeding the MTCA Method A Cleanup Level.

7.3.2. Remedial Excavation and Confirmation Soil Sample Results GeoEngineers monitored excavation of petroleum-contaminated soil (represented by sample UST2-15.0) at the former UST 2 location. Santa Fe, the earthwork contractor completed remedial excavation activities. Remedial excavation continued until soil field screening results yielded no sheen and no petroleum odor. The UST 2 remedial excavation measured approximately 60 feet long (north-south) by 20 feet wide (east-west) and depth ranged from approximately 18 feet bgs (Elevation 67, NVD88) to 26 feet bgs (Elevation 59, NAVD88). Groundwater was not encountered in UST 2 remedial excavation. Petroleum-contaminated soil excavated from UST 2 location was transported to CEMEX in Everett, Washington for permitted disposal.

Eight confirmation soil samples (EX-17-26.0 through EX-23-24.0, and EX-29-24.0) were obtained from the final limits of the UST 2 remedial excavation at depths ranging from 18- to 26 feet bgs. Diesel- and heavy oil-range hydrocarbons were not detected in the confirmation samples.

7.3.3. Area North of UST 2 Remedial Excavation A chemical storage shed and vehicle cleaning carport formerly existed in north vicinity of UST 2, at the Property. Although no field screening evidence of contamination was observed, GeoEngineers obtained three confirmation samples (EX-30-24.0, EX-31-24.0, and EX-32-24.0) to document soil conditions following completion of construction excavation at this location to verify that petroleum hydrocarbons had not impacted soil in the vicinity of the former shed and carport. Diesel- and heavy oil-range hydrocarbons were not detected in the confirmation samples. Field screening and chemical analytical results for these soil samples are summarized in Table 2. Approximate locations of confirmation soil samples are shown relative to the Property on Figure 3.

7.4. Hot Spot

7.4.1. Initial Observations and Characterization Soil Sampling Results According to the Geosyntec 2012 Phase II ESA, benzo(a)pyrene (a carcinogenic polycyclic aromatic hydrocarbons constituent [cPAHs]) was detected at a concentration (0.131 mg/kg) slightly greater than the MTCA Method A Cleanup level of 0.1 mg/kg in sample SB-1-5.0-5.5 obtained from boring SB-1 at depth ranging between 5 and 5.5 feet bgs (Elevations 76 to 75.5, NAVD88). Also, the 2012 Phase II ESA identified residual diesel-range hydrocarbons impacted soil at this location. SB-1 was completed in proximity of the

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2010 remedial excavation limits. The 2010 remedial excavation was performed following removal of a 675-gallon heating oil UST from the parking lot located adjacent to the former Holly Press building in southern-most parcel of the Property. It appears the release from former heating oil UST is the source of residual petroleum and cPAHs contamination at this location (herein referred as “Hot Spot”). The approximate location of the Hot Spot and former UST (removed in December 2010), and limits of 2010 remedial excavation are generally shown on Figure 2.

7.4.2. Remedial Excavation and Confirmation Soil Sample Results GeoEngineers monitored the excavation of the Hot Spot area at the Property. Santa Fe, the earthwork contractor completed remedial excavation activities. Remedial excavation continued until soil field screening results yielded no sheen and no petroleum odor at which point soil samples were obtained for chemical testing of cPAHs (a compound that is not easily identifiable using field screening techniques; unless co-located with petroleum hydrocarbons). The Hot Spot remedial excavation measured approximately 20 feet long (north-south) by 40 feet wide (east-west) with depth ranging from approximately 3.5 to 7 feet bgs. In a limited section measuring approximately 5 feet long by 5 feet wide the remedial excavation extended to an approximate depth of 16 feet bgs (Elevation 67, NAVD88). Hydrocarbon- and cPAH-contaminated soil excavated from the Hot Spot was transported to CEMEX in Everett, Washington for permitted disposal.

Eleven confirmation soil samples were obtained from the final limits of the Hot Spot remedial excavation at depths ranging from 3.5 to 16 feet bgs and submitted for chemical analysis of diesel- and heavy oil-range hydrocarbons. Six samples were additionally analyzed for PAHs. Diesel- and heavy oil-range hydrocarbons and PAHs were not detected in the confirmation samples except for one sample. Heavy oil-range hydrocarbons (225 mg/kg) and naphthalenes (0.87 mg/kg) were detected in sample EX-8-14.0 (sample depth 14 feet [Elevation 69, NAVD88]) at concentrations below their respective MTCA Method A Cleanup levels of 2,000 mg/kg and 5 mg/kg. Soil represented by this sample was excavated to obtain clean vertical limits and excavated soil was transported to CEMEX for permitted disposal. Sample EX-7-16.0 was obtained from the same location of EX-8-14.0 but at a deeper depth of 16 feet bgs (Elevation 67, NVD88) to document final soil conditions. Petroleum- and polycyclic aromatic hydrocarbons were not detected in EX-7-16.0. Carcinogenic PAHs were not detected in any of the confirmation samples tested for cPAHs.

Field screening and chemical analytical results of samples SB-1-5.0-5.5 and EX-8-14.0 removed during remedial excavation activities and confirmation soil samples representing soil conditions at the final limits of the remedial excavation at the Hot Spot location are summarized in Table 3. The approximate locations of characterization and confirmation soil samples are shown relative to the Property on Figure 2 and a cross-section of the remedial excavation area is shown in Figure 3.

8.0 WASTE DISPOSAL

All contaminated soil excavated from the Property by Santa Fe was transported off-site for disposal. Contaminated soil excavated from the Property was temporarily stockpiled on-site and then loaded into solo trucks and transported to CEMEX in Everett, Washington for permitted disposal. According to the disposal weight tickets provided from CEMEX, approximately 820 tons of contaminated soil was disposed. Copies of the weight tickets from CEMEX are included in Appendix C.

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9.0 CONCLUSIONS AND RECOMMENDATIONS

9.1. Soil Conditions Based on our observations, field screening and chemical analytical results, the remedial action at this Property to remove sources of contamination (former heating oil USTs) and petroleum and cPAH-contaminated soil was successfully completed in accordance with Washington State MTCA cleanup regulations, Chapter 173-340 WAC. Therefore, it is our opinion that no further action relative to soil is warranted at the Property.

9.2. Groundwater Conditions Similar to the conclusion for soil, no further action is warranted for groundwater at this Property because of the following:

1. All historical sources of contamination (USTs) and petroleum contaminated soil were successfully removed from the Property. 2. Former contamination at the Property resulted from diesel- (heating oil) and heavy oil-range hydrocarbons which are minimally mobile though soil media. 3. According to the chemical analytical results, petroleum hydrocarbons were not-detected in any of the confirmation soil samples obtained from the limits of each remedial excavation area at former UST 1, UST 2, and Hot Spot locations. 4. Subsurface soil encountered in the borings ranged from dense silt, sand, and gravel mixtures to hard silts, sandy silt, and clay typical of a glacial depositional environment. 5. Groundwater was not encountered in borings completed to approximate depths of 35 feet below original ground surface during previous investigations performed between 2003 and 2012, at the Property. Also, groundwater was not encountered during remedial excavation (depth ranging from 20 to 26 feet bgs) at former UST 1, UST 2, and Hot Spot locations and construction excavation (depth ranging from 30 to 32 feet bgs) in 2014, at the Property. 6. GeoEngineers reviewed historical groundwater data available from United States Geological Survey (USGS) National Water Information System – Mapper. According to the USGS, the depth-to- groundwater at a former monitoring well (USGS Station 473710122200601 25N/04E-30R01) located in the vicinity and downgradient from the Property was measured at approximately 78 feet bgs. Therefore, based on the previous investigations reports, field observations during remedial and mass excavation activities, and historical USGS data, the groundwater surface is deeper than 50 feet bgs, and could be as deep as 78 feet bgs at the Property.

We recommend that 8th and Thomas JV, LLC enroll the Property into Ecology’s VCP and request a “No Further Action” (NFA) letter based on successful completion of cleanup action at the Property.

10.0 LIMITATIONS

We have prepared this report pertaining to the 8th and Thomas Street Property located in Seattle, Washington for the exclusive use of 8th and Thomas JV, LLC and their authorized agents and regulatory agencies.

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Within the limitations of scope, schedule and budget, our services have been executed in accordance with our Proposal dated August 8, 2014 and generally accepted environmental science and geotechnical engineering practices in this area at the time this report was prepared. No warranty or other conditions, express or implied, should be understood.

Any electronic form, facsimile or hard copy of the original document (email, text, table, and/or figure), if provided, and any attachments are only a copy of the original document. The original document is stored by GeoEngineers, Inc. and will serve as the official document of record.

Please refer to Appendix F, titled “Report Limitations and Guidelines for Use,” for additional information pertaining to use of this report.

11.0 REFERENCES

Environmental Associates, Inc., “Phase I Environmental Audit, Two Commercial Properties and Parking Lot, 223 8th Avenue and 777 Thomas Street, Seattle, Washington”, February 20, 2003.

Geosyntec Consultants, “Phase I and Limited Phase II Environmental Site Assessment, 777 Thomas Street, 223 8th Avenue N, and 220 8th Avenue N, Seattle, Washington”, dated December 22, 2011.

Geosyntec Consultants, “Phase I and Limited Phase II Environmental Site Assessment, 215 8th Avenue N, Seattle, Washington”, dated December 4, 2012.

The Riley Group, Inc., “Phase I Environmental Site Assessment, South Lake Union Office Building, 215 8th Avenue N, Seattle Washington”, dated December 17, 2010.

The Riley Group, Inc., “Phase II Subsurface Investigation and Independent Cleanup Report, Former Holly Press Building, 215 8th Avenue N, Seattle Washington”, dated February 25, 2011

Washington State Department of Ecology, “Guidance for Site Checks and Site Assessments for Underground Storage Tanks,” Publication No. 91-30 dated November 2003.

October 31, 2014| Page 11 File No. 20341-001-03 TABLES Table 1 UST 1 - Summary of Field Screening Results and Soil Chemical Analytical Data1 8th and Thomas Development Seattle, Washington

3 Total Petroleum Field Screening Results 4 Sample Sample Depth Hydrocarbons (mg/kg) 2 Sample Date Identification (feet bgs) Headspace Diesel- Heavy Oil- Sheen Vapors (ppm) Range Range

Characterization Sample5 UST1-15.0 8/28/2014 15.0 <1 HS 66,700 <75.5 Final Confirmation Samples6 EX-24-16.0 9/25/2014 160.0 <1 NS <21.6 <53.9 EX-25-16.0 9/25/2014 16.0 <1 NS <21.5 <53.7 EX-26-16.0 9/25/2014 16.0 <1 NS <20.1 <50.3 EX-27-16.0 9/25/2014 16.0 <1 NS <19.7 <49.2 EX-28-20.0 9/25/2014 20.0 <1 NS <21.1 <52.8

MTCA Method A Cleanup Level - Unrestricted Land Use 2,000 2,000

Notes: 1Chemical analyses performed by Fremont Analytical in Seattle, Washington. Chemical analytical laboratory reports are included in Appendix E. 2The approximate sample locations are shown in Figures 3 and 4. 3Field screening methods are described in Appendix D. 4Diesel- and heavy oil-range petroleum hydrocarbons analyzed by NWTPH-Dx/Dx Extended. 5Soil represented by this sample was excavated and transported off site for permitted disposal. 6These samples represent soil conditions at the final remedial excavation limit. HS = Heavy sheen; NS = No sheen bgs = below original ground surface mg/kg = milligrams per kilogram MTCA = Model Toxics Control Act ppm = parts per million Bolded value indicates an analyte has been detected at the listed concentration. Shaded values represent concentrations that are greater than the MTCA Method A cleanup level.

File No. 20341-001-03 Table 1 | October 31, 2014 Page 1 of 1 Table 2 UST 2 - Summary of Field Screening Results and Soil Chemical Analytical Data1 8th and Thomas Development Seattle, Washington

3 Total Petroleum Field Screening Results 4 Sample Sample Depth Hydrocarbons (mg/kg) 2 Sample Date Identification (feet bgs) Headspace Diesel- Heavy Oil- Sheen Vapors (ppm) Range Range

Characterization Sample5 UST2-15.0 8/28/2014 15.0 <1 HS 12,700 <59.9 Final Confirmation Samples6 EX-17-26.0 9/24/2014 26.0 <1 NS <21.5 <53.8 EX-18-20.0 9/24/2014 20.0 <1 NS <25 <62.5 EX-19-20.0 9/24/2014 20.0 <1 NS <23.1 <57.7 EX-20-20.0 9/24/2014 20.0 <1 NS <21.2 <52.9 EX-21-18.0 9/24/2014 18.0 <1 NS <23.3 <58.3 EX-22-20.0 9/25/2014 20.0 <1 NS <22.7 <56.7 EX-23-24.0 9/25/2014 24.0 <1 NS <20.2 <50.5 EX-29-24.0 9/25/2014 24.0 <1 NS <18.7 <46.8 Final Confirmation Samples - Area North of UST 2 EX-30-24.0 9/25/2014 24.0 <1 NS <21.3 <53.3 EX-31-20.0 9/25/2014 20.0 <1 NS <21.7 <54.3 EX-32-24.0 9/25/2014 24.0 <1 NS <19.3 <48.3

MTCA Method A Cleanup Level - Unrestricted Land Use 2,000 2,000

Notes: 1Chemical analyses performed by Fremont Analytical in Seattle, Washington. Chemical analytical laboratory reports are included in Appendix E. 2The approximate sample locations are shown in Figures 3 and 4. 3Field screening methods are described in Appendix D. 4Diesel- and heavy oil-range petroleum hydrocarbons analyzed by NWTPH-Dx/Dx Extended. 5Soil represented by this sample was excavated and transported off site for permitted disposal. 6These samples represent soil conditions at the final remedial excavation limit. bgs = below original ground surface HS = Heavy sheen; NS = No sheen mg/kg = milligrams per kilogram MTCA = Model Toxics Control Act ppm = parts per million Bolded value indicates an analyte has been detected at the listed concentration. Shaded values represent concentrations that are greater than the MTCA Method A cleanup level.

File No. 20341-001-03 Table 2 | October 31, 2014 Page 1 of 1 Table 3 Hot Spot - Summary of Field Screening Results and Soil Chemical Analytical Data1 8th and Thomas Development Seattle, Washington

Field Screening Total Petroleum Polycyclic Aromatic Results3 Hydrocarbons4 (mg/kg) Sample Hydrocarbons (PAHs) and Sample 5 2 Sample Date Depth Headspace carcinogenic PAHs (mg/kg) Identification Diesel- Heavy Oil- (feet bgs) Vapors Sheen Range Range Benzo(a) (ppm) Naphthalenes pyrene Characterization Sample6 SB1-5.0-5.57 10/2/2012 5.0-5.5 <1 HS 605 <59.4 1.40 0.131 Final Confirmation Samples8 EX-1-3.5 8/26/2014 3.5 <1 NS <23.9 <59.7 -- -- EX-2-3.5 8/26/2014 3.5 <1 NS <24.3 <60.8 -- -- EX-3-3.5 8/26/2014 3.5 <1 NS <23.8 <59.4 -- -- EX-5-3.5 8/26/2014 3.5 <1 NS <23.4 <58.4 -- -- EX-6-3.5 8/26/2014 3.5 <1 NS <27 <67.5 <0.0645 <0.0645 EX-7-16.0 8/26/2014 16.0 <1 NS <20.4 <50.9 <0.0569 <0.0569 EX-8-14.09 8/26/2014 14.0 <1 NS <26.1 225 0.87 <0.0688 EX-9-5.5 8/26/2014 5.5 <1 NS <23.4 <58.4 <0.0626 <0.0626 EX-11-3.5 9/13/2014 3.5 <1 NS <24.3 <60.7 -- -- EX-13-7.0 9/13/2014 7.0 <1 NS <25.7 <64.2 <0.0654 <0.0654 EX-15-5.0 9/13/2014 5.0 <1 NS <26.8 <67.0 <0.0649 <0.0649

MTCA Method A Cleanup Level - Unrestricted Land Use 2,000 2,000 5.0 0.1

Notes: 1Chemical analyses performed by Fremont Analytical in Seattle, Washington. Chemical analytical laboratory reports are included in Appendix E. 2The approximate exploration locations are shown in Figures 3 and 4. 3Field screening methods are described in Appendix D. 4Diesel- and heavy oil-range petroleum hydrocarbons analyzed by NWTPH-Dx/Dx Extended.

5Polycyclic aromatic hydrocarbons (PAHs) including carcinogenic PAHs analyzed by EPA Method 8270 SIM. 6,9Soil represented by this sample was excavated and transported off site for permitted disposal. 7This sample was obtained by GeoSyntec from boring SB-1 completed during a Phase ESA in October 2012. Other PAH and cPAHs constituents either were not detected or were detected at concentrations less than the MTCA cleanup levels. 9Soil represented by this sample was excavated and transported off site for permitted disposal. -- = Not analyzed bgs = below original ground surface mg/kg = milligrams per kilogram MTCA = Model Toxics Control Act ppm = parts per million Bolded value indicates an analyte has been detected at the listed concentration. Shaded values represent concentrations that are greater than the MTCA Method A cleanup level.

File No. 20341-001-03 Table 3 | October 31, 2014 Page 1 of 1 FIGURES Hayes St W Garfield St E Garfield St BorenBoren ParkPark Garfield St UV99 W Galer St

1St Ave1St N 8Th Ave N Ave 8Th

Galer St Ave N 5Th

7ThAve W W Lee St Lee St FederalAve E Observatory Court Queen Anne Greenbelt §5 LakeLake UnionUnion ¨¦ Highland Dr BhyBhy KrackeKracke ParkPark 16ThAve E ParsonsParsons GardensGardens VolunteerVolunteer ParkPark W Prospect St Kerry Park Prospect St Kerry ParkHighland Place Fairview Ave N Lakeview Place Ward St Lakeview Place W Kinnear Pl Prospect St E Prospect St

Aloha St Ward Springs ParkAve6Th N E Ward St Kinnear Park 1StAve W E Aloha St Kinnear Park Valley St 8ThAve N W Roy St BellevueBellevue PlacePlace VolunteerVolunteerE Valley Parkway ParkwaySt

Roy St BoylstonAve E Elliott Ave W 2NdAve W

3Rd Ave3Rd N 4ThAve N MinorAve N Roy St E Roy St E Roy St 3Rd Ave3Rd W Mercer St Mercer St

Terry Ave N Terry

9ThAve N

WarrenAve N

Republican St 12ThAve E 4ThAve W Republican St Tashkent Park DexterAve N TashkentE Republican Park St

14ThAve E

W Harrison St 1StAve N

17ThAve E Harrison St 9Th

Yale Ave N Yale

Harrison St Ave 11Th E 15ThAve E 13ThAve E QueenAnne Ave N E Harrison St W Thomas St Thomas St Elliott Bay Park Thomas St Cascade Playground E Thomas St Elliott Bay Park 4Th Ave N ! Cascade Playground W John St John St ThomasThomas StreetStreet ParkPark

4ThAve N 6ThAve N SITE John St

Taylor Ave Taylor N E John St Williams Place Denny Way Denny Park Denny Playfield Yale Ave Ave10Th E Minor Ave E Denny Way Myrtle Edwards Park Boren Ave 3Rd Ave 6Th Ave 8Th Ave Eagle St Bell St Terry Ave E Howell St Lenora9Th StAve Clay St BobbyBobby MorrisMorris PlayfieldPlayfieldE Olive St

Battery St 7Th Ave

MelroseAve Cedar St BellevueAve E Pine St Broad St Vine St Ave Summit Map Map Revised:May 14, 2013 EL

4Th Ave BelmontAve Regrade Park Wall St E Pike St BorenBoren PikePike PinePine ParkPark BoylstonAve McGilvra Place Olive Way E Union St E Union St

Blanchard St Pine St

Hubbell Pl FirstFirst HillHill ParkPark Virginia St SpringSpring StreetStreet ParkPark Westlake Park 5Th Ave Spring St E Marion St VictorVictorAlaskan SteinbrueckSteinbrueck Way ParkPark Pike St Freeway Park

Freeway Park Ave 11Th

Broadway Spring St 12ThAve Union St MadisonMarion St St 7Th Ave E Cherry St FirehouseFirehouse ParkPark

13ThAve University St E James St Seneca2Nd Ave St Columbia St Waterfront Park Western Ave 1St Ave Jefferson St 16ThAve Marion St Cherry St 17ThAve James St

Terrace St 10ThAve

15ThAve Columbia St 14ThAve 18ThAve E Spruce St

Harborview Park E Fir St 16ThAve PioneerPioneer SquareSquare ParkParkCity Hall ParkYesler Way

LangstonLangston HughesHughes CulturalCultural ArtsArts KlondikeKlondike GoldGold RushRush NHPNHP KobeKobe TerraceTerrace ParkPark S Main St PrattPratt ParkPark

S King St Hing Hay Park S King St S Weller St

18ThAve S

4ThAve S

12ThAve S 3Rd Ave3Rd S InternationalInternational ChildrenChildren ParkPark S Lane St

UV524 UV104 Snohomish

Jefferson ¨¦§5 ¨¦§405 UV3 Seattle µ Bellevue Kitsap King ¨¦§90 2,000 0 2,000

Mason UV16 Feet 167 Pierce UV

Notes: Vicinity Map Path: Path: \\red\projects\20\20341001\GIS\203400102_F1_VicinityMap.mxd 1. The locations of all features shown are approximate. 2. This drawing is for information purposes. It is intended to assist in showing features discussed in an attached document. GeoEngineers, Inc. 8th & Thomas Project Site cannot guarantee the accuracy and content of electronic files. The master file is stored by GeoEngineers, Inc. and will serve as the official record of 777 Thomas this communication. Seattle, Washington 3. It is unlawful to copy or reproduce all or any part thereof, whether for personal use or resale, without permission. Data Sources: ESRI Data & Maps, Street Maps 2005 Figure 1 Transverse Mercator, Zone 10 N North, North American Datum 1983 North arrow oriented to grid north Office:Redmond LEGEND: Approximate Property boundary

Closed-in-place (concrete/slurry filled) USTs

Hot spot

UST removed from the site in December, 2010

Approximate extent of former UST remedial excavation performed in December, 2010 B-11 B-4 B-1 Exploration performed by other consultants between 2003 and 2011 B-10 G-1 SB-1 Soil boring (Geosyntec, 2012) B-7 G-11 UST fill port Vent pipe B-6 B-5 UST Underground Storage Tank Former UST 1 Location

G-2 B-1 G-10 G-3 G-13

B-8

G-4 B-3 G-6 FORMER VEHICLE G-7 CLEANING B-2 CARPORT

B-9 FORMER CHEMICAL STORAGE SHED

G-8 G-9 Former UST 2 Location

G-12

P3 N

WE

SB-5 S SB-1 SB-7 30 0 30 SB-2 SB-4 SB-6 Approximate FEET SB-8 SB-3 Extent of Former Notes P1 P2 UST Remedial 1. The locations of all features shown are approximate. Pre-Cleanup Site Plan Excavation 2. This drawing is for information purposes. It is intended to assist in showing features discussed in an attached document. P4 GeoEngineers, Inc. cannot guarantee the accuracy and content of 8th and Thomas Development electronic files. The master file is stored by GeoEngineers, Inc. and Seattle, Washington will serve as the official record of this communication.

Reference: CAD drawing 20120504_2011105-03_XS-SUR.dwg Figure 2 provided by Bush, Roed & Hitchings dated 4/12. LEGEND: Approximate Property boundary

Approximate final limits of remedial excavation

Closed-in-place (concrete/slurry filled) underground storage tank (UST) removed in September, 2014

Hot spot excavated

MTCA Model Toxics Control Act PAH Polycyclic Aromatic Hydrocarbons cPAH Carcinogenic PAH

21 Sample number 26 UST 1 Remedial Excavation UST1 Characterization soil sample location with MTCA exceedance for diesel-range hydrocarbons. Soil represented by this sample was subsequently excavated and transported from the Property to 25 27 CEMEX for permitted disposal. 28 24 Characterization soil sample location with MTCA exceedance for cPAHs. Soil represented by this sample was subsequently excavated and transported from the Property to CEMEX for permitted disposal.

Confirmation soil sample location where naphthalenes and heavy oil- range hydrocarbons were detected at concentrations below MTCA Method A cleanup level. Soil represented by this sample was subsequently excavated and transported from the Property to CEMEX for permitted disposal.

Final confirmation soil sample location in which diesel- and heavy oil- range hydrocarbons and/or 31 PAHs including cPAHs were not detected. Represents soil conditions at the final remedial 32 excavation limits. FORMER 30 VEHICLE CLEANING 21 CARPORT

FORMER CHEMICAL STORAGE SHED UST2 29 17 18 UST 2 Remedial Excavation

22 20 23

19

N

WE 6 SB-1 S 15 13 30 0 30 1 9 FEET 7 8 5 2 Notes 11 3 1. The locations of all features shown are approximate. Cleanup Excavations Plan 2. This drawing is for information purposes. It is intended to assist in Hot Spot Remedial showing features discussed in an attached document. Excavation GeoEngineers, Inc. cannot guarantee the accuracy and content of 8th and Thomas Development electronic files. The master file is stored by GeoEngineers, Inc. and Seattle, Washington will serve as the official record of this communication.

Reference: CAD drawing 20120504_2011105-03_XS-SUR.dwg Figure 3 provided by Bush, Roed & Hitchings dated 4/12. EX-26-16.0 EX-21-18.0 EX-6-3.5

SB-1-5.0-5.5 PROPERTY BOUNDARY EX-13-7.0 EX-15-5.0 UST1-15.0 EX-1-3.5 EX-9-5.5 EX-27-16.0 EX-25-16.0 C' A EX-28-20.0 A' EX-29-24.0 B' C UST2-15.0

EX-17-26.0 EX-7-16.0 EX-18-20.0 EX-24-16.0 PROPERTY EX-2-3.5 EX-8-14.0 BOUNDARY EX-5-3.5 UST 1 - REMEDIAL EXCAVATION PLAN B EX-3-3.5 EX-11-3.5 PROPERTY BOUNDARY HOT SPOT - REMEDIAL EXCAVATION PLAN GROUND SURFACE OVERBURDEN WEST (CLEAN SOIL) EAST WEST EAST A A' C GROUND SURFACE C'

EX-1-3.5 EX-20-20.0

CONCRETE-FILLED SB-1-5.0-5.5 EX-22-20.0 EX-23-24.0 EX-13-7.0 EX-9-5.5 EX-15-5.0 UST 1 REMOVED

EX-27-16.0 UST1-15.0 EX-25-16.0 HOT SPOT - REMEDIAL EXCAVATION CROSS SECTION

EX-28-20.0 EX-28-20.0 EX-19-20.0 Depth (feet below ground surface) UST 2 - REMEDIAL EXCAVATION PLAN Sample number UST 1 - REMEDIAL EXCAVATION CROSS SECTION Sample designation GROUND SURFACE Characterization soil sample location with MTCA exceedance for diesel-range WEST PROPERTY BOUNDARY EAST hydrocarbons. Soil represented by this sample was subsequently excavated and transported from the Property to CEMEX for permitted disposal. LEGEND: B B' Characterization soil sample location with MTCA exceedance for cPAHs. Soil Approximate final limits of remedial excavation represented by this sample was subsequently excavated and transported from the Property to CEMEX for permitted disposal. Closed-in-place underground storage tank (UST) removed in September, 2014 OVERBURDEN Confirmation soil sample location where naphthalenes and heavy oil- range Hot spot excavated (CLEAN SOIL) hydrocarbons were detected at concentrations below MTCA Method A cleanup level. Soil represented by this sample was subsequently excavated and Cross section cut line transported from the Property to CEMEX for permitted disposal.

A A' Final confirmation soil sample location in which diesel- and heavy oil- range MTCA Model Toxics Control Act UST2-15.0 hydrocarbons and/or PAHs including cPAHs were not detected. Represents soil conditions at the final remedial excavation limits. PAH Polycyclic Aromatic Hydrocarbons CONCRETE-FILLED cPAH Carcinogenic PAH EX-18-20.0 UST 2 REMOVED Remedial Excavations Plan and Cross-Sections Notes EX-29-24.0 1. The locations of all features shown are approximate. 8th and Thomas Development 2. This drawing is for information purposes. It is intended to assist in showing features discussed in EX-17-26.0 Seattle, Washington an attached document. GeoEngineers, Inc. cannot guarantee the accuracy and content of 10 0 10 electronic files. The master file is stored by GeoEngineers, Inc. and will serve as the official UST 2 - REMEDIAL EXCAVATION CROSS SECTION record of this communication. FEET Figure 4 Reference: AutoCAD drawing file created from GeoEngineers staff sketch. APPENDICES

APPENDIX A USTs Removal/Closure Documents and Site Assessment Checklist

APPENDIX B Cleanup Action Photographs

SharePoint: www.project/sites/2034100103

1. View of concrete filled former UST 1 removed from northwest portion of 2. View of corrosion damage on surface of former UST 1 – Looking West the Site – Looking West

3. View of heating oil-contaminated soil beneath former UST 1 at the Site – 4. View of remedial excavation at former UST 1 location – Looking West Looking Southeast Cleanup Action Photographs 8th and Thomas Project Site Seattle, Washington

Appendix B SharePoint: www.project/sites/2034100103

5. View of former UST 2 in west portion of the Site – Looking West 6. View of concrete filled former UST 2 removed from west portion of the Site – Looking East

7. View of heating oil-contaminated soil beneath the former UST 2 location 8. View of remedial excavation at former UST 2 location at the Site – at the Site – Looking East Looking South Cleanup Action Photographs 8th and Thomas Project Site Seattle, Washington

Appendix B SharePoint: www.project/sites/2034100103

9. View of former Hot Spot in south-southwest portion of the Site – 10. Another view of Hot Spot in southwest portion of the Site – Looking Looking West Northeast

11. View of Hot Spot excavation in southwest portion of the Site – Looking South Cleanup Action Photographs 8th and Thomas Project Site Seattle, Washington

Appendix B

APPENDIX C Disposal Weight Tickets

APPENDIX D Field Screening Procedures

APPENDIX D FIELD SCREENING PROCEDURES General A representative from our staff assisted Santa Fe, the earthwork contractor regarding the segregation and management of soil generated during the remedial excavation. Field procedures are described below.

Soil Sample Collection and Handling Soil samples were obtained using excavator bucket and/or a pre-washed stainless steel trowel. Soil samples were obtained from the center portion of the bucket and samples were handled using disposable nitrile gloves. Soil samples obtained for chemical analysis were transferred to laboratory-prepared sample jars. Sample containers were filled to minimize headspace. The samples were placed in a cooler with ice pending transport to the analytical laboratory. Chain-of-custody procedures were followed in transporting the samples to the laboratory.

Field Screening of Soil Samples Soil samples obtained from the Property were evaluated for the potential presence of petroleum contamination using field screening techniques. Field screening results can be used as a general guideline to delineate areas of potential petroleum-related contamination in soils. In addition, screening results are often used as a basis for selecting soil samples for chemical analysis. The screening methods employed included: (1) visual screening; (2) odor identification; and 3) water sheen screening.

Visual and odor screening consists of inspecting the soil for stains indicative of petroleum-related contamination. Visual and odor screening is generally more effective when contamination is related to heavy petroleum hydrocarbons such as diesel-range, or when hydrocarbon concentrations are high. Sheen screening is a more sensitive screening method that can be effective in detecting petroleum-based products in concentrations lower than regulatory cleanup guidelines.

Field screening results are site-specific. The effectiveness of field screening results varies with temperature, moisture content, organic content, soil type and type and age of contaminant. The presence or absence of sheen does not necessarily indicate the presence or absence of petroleum hydrocarbons or other contaminants.

Water sheen testing involves placing soil in water and observing the water surface for signs of sheen. Sheens are classified as follows:

No Sheen (NS) No visible sheen on water surface. Slight Sheen (SS) Light, colorless, dull sheen; spread is irregular, not rapid; sheen dissipates rapidly. Moderate Sheen (MS) Light to heavy sheen, may have some color/iridescence; spread is irregular to flowing; few remaining areas of no sheen on water surface. Heavy Sheen (HS) Heavy sheen with color/iridescence; spread is rapid; entire water surface may be covered with sheen.

October 31, 2014| Page D-1 File No. 20341-001-03

APPENDIX E Chemical Analytical Data

APPENDIX E CHEMICAL ANAYLTICAL DATA

Analytical Methods Our summary of quality assurance/quality control (QA/QC) issues pertains only to those soil sampling and analysis activities completed by GeoEngineers. Chain-of-custody procedures were followed during transport of field samples to the accredited analytical laboratories. The samples were held in cold storage pending extraction and/or analysis. The analytical results and quality control records are included herein.

Analytical Data Review The laboratories maintain internal quality assurance programs as documented in their laboratory quality assurance manuals. The laboratories use a combination of blanks, surrogate recoveries, duplicates, matrix spike recoveries, matrix spike duplicate recoveries, blank spike recoveries and blank spike duplicate recoveries to evaluate the analytical results. The laboratories also use data quality performance goals (quality control limits) for individual chemicals or groups of chemicals based on the long-term performance of the test methods. Control limits were included in the laboratory reports. The laboratories compared each group of samples with the control limits and noted any exceptions in the laboratory report. Any data quality exceptions documented by the accredited laboratory were reviewed by GeoEngineers and are addressed below. Detailed summary review sheets for each data package are stored with the project files and are available upon request.

Data Quality Exception Summary The data quality review process included a review of method blanks, surrogate spikes, matrix spikes/matrix spike duplicates, replicates, and laboratory control spikes/laboratory control spike duplicates when applicable. The review was based on quality control criteria provided by the contract laboratories in conjunction with best professional judgment. The following is a summary of exceptions noted by the laboratory. In our opinion, the data are scientifically valid and of acceptable quality for their intended use in this study (specifically for remedial activities).

■ Elevated practical quantitation limits were noted for samples UST1-15.0 and UST2-15.0. Raising the practical quantitation limit (PQL) may impact decisions if the raised reporting limits were close to or above a decision level value (such as a cleanup level). These raised PQL of samples are acceptable for site characterization decisions but might not be suitable for direct comparison with cleanup levels. These two soil samples were intended to characterize soil conditions beneath former UST 1 and UST 2 at the Property. Soil represented by both samples was subsequently excavated and removed from the Property for permitted disposal. Additionally, no data quality exceptions were noted by the reporting laboratory in the confirmation samples obtained from the final limits of the remedial excavation. Therefore, it is our opinion that the analytical data are of acceptable quality for their intended use in this report. No other data quality exceptions were noted by the environmental laboratory.

October 31, 2014| Page E-1 File No. 20341-001-03 3600 Fremont Ave. N. Seattle, WA 98103 T: (206) 352-3790 F: (206) 352-7178 [email protected] GeoEngineers Ian Young 600 Stewart Street, Suite 1700 Seattle, WA 98101

RE: 8th & Thomas St Lab ID: 1408278

September 05, 2014

Attention Ian Young: Fremont Analytical, Inc. received 2 sample(s) on 8/28/2014 for the analyses presented in the following report. Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Sample Moisture (Percent Moisture) This report consists of the following:

- Case Narrative - Analytical Results - Applicable Quality Control Summary Reports - Chain of Custody

All analyses were performed consistent with the Quality Assurance program of Fremont Analytical, Inc. Please contact the laboratory if you should have any questions about the results.

Thank you for using Fremont Analytical.

Sincerely,

Mike Ridgeway President

www.fremontanalytical.com

Page 1 of 7 Date: 09/05/2014

CLIENT: GeoEngineers Work Order Sample Summary Project: 8th & Thomas St Lab Order: 1408278

Lab Sample ID Client Sample ID Date/Time Collected Date/Time Received 1408278-001 UST1-15.0 08/28/2014 1:30 PM 08/28/2014 3:35 PM 1408278-002 UST2-15.0 08/28/2014 2:30 PM 08/28/2014 3:35 PM

Note: If no "Time Collected" is supplied, a default of 12:00AM is assigned

Page 2 of 7 Case Narrative WO#: 1408278 Date: 9/5/2014

CLIENT: GeoEngineers Project: 8th & Thomas St

I. SAMPLE RECEIPT: Samples receipt information is recorded on the attached Sample Receipt Checklist.

II. GENERAL REPORTING COMMENTS: Results are reported on a wet weight basis unless dry-weight correction is denoted in the units field on the analytical report ("mg/kg-dry" or "ug/kg-dry").

The validity of the analytical procedures for which data is reported in this analytical report is determined by the Laboratory Control Sample (LCS) and the Method Blank (MB). The LCS and the MB are processed with the samples to ensure method criteria are achieved throughout the entire analytical process.

III. ANALYSES AND EXCEPTIONS: Exceptions associated with this report will be footnoted in the analytical results page(s) or the quality control summary page(s) and/or noted below.

Page 3 of 7 Analytical Report

WO#: 1408278 Date Reported: 9/5/2014

CLIENT: GeoEngineers Project: 8th & Thomas St

Lab ID: 1408278-001 Collection Date: 8/28/2014 1:30:00 PM Client Sample ID: UST1-15.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8574 Analyst: EC

Diesel (Fuel Oil) 66,700 30.2 E mg/Kg-dry 1 8/30/2014 1:57:00 PM Heavy Oil ND 75.5 mg/Kg-dry 1 8/30/2014 1:57:00 PM Surr: 2-Fluorobiphenyl 108 50-150 %REC 1 8/30/2014 1:57:00 PM Surr: o-Terphenyl 109 50-150 %REC 1 8/30/2014 1:57:00 PM

Sample Moisture (Percent Moisture) Batch ID: R16479 Analyst: KZ

Percent Moisture 37.1 wt% 1 8/29/2014 8:21:29 AM

Lab ID: 1408278-002 Collection Date: 8/28/2014 2:30:00 PM Client Sample ID: UST2-15.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8574 Analyst: EC

Diesel (Fuel Oil) 12,700 24.0 E mg/Kg-dry 1 8/30/2014 4:01:00 PM Heavy Oil ND 59.9 mg/Kg-dry 1 8/30/2014 4:01:00 PM Surr: 2-Fluorobiphenyl 109 50-150 %REC 1 8/30/2014 4:01:00 PM Surr: o-Terphenyl 98.1 50-150 %REC 1 8/30/2014 4:01:00 PM

Sample Moisture (Percent Moisture) Batch ID: R16479 Analyst: KZ

Percent Moisture 19.2 wt% 1 8/29/2014 8:21:29 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 4 of 7 Date: 9/5/2014

Work Order: 1408278 QC SUMMARY REPORT CLIENT: GeoEngineers Project: 8th & Thomas St Diesel and Heavy Oil by NWTPH-Dx/Dx Ext.

Sample ID: 1408278-001ADUP SampType: DUP Units: mg/Kg-dry Prep Date: 8/29/2014 RunNo: 16507 Client ID: UST1-15.0 Batch ID: 8574 Analysis Date: 8/30/2014 SeqNo: 332073

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) 28,500 30.5 66,670 80.3 30 RE Heavy Oil ND 76.3 0 30 Surr: 2-Fluorobiphenyl 32.1 30.50 105 50 150 0 Surr: o-Terphenyl 28.8 30.50 94.4 50 150 0 NOTES: R - High RPD due to suspected sample inhomogeneity. The method is in control as indicated by the Laboratory Control Sample (LCS).

Sample ID: LCS-8574 SampType: LCS Units: mg/Kg Prep Date: 8/29/2014 RunNo: 16507 Client ID: LCSS Batch ID: 8574 Analysis Date: 8/30/2014 SeqNo: 332083

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) 464 20.0 500.0 0 92.7 65 135 Surr: 2-Fluorobiphenyl 22.1 20.00 111 50 150 Surr: o-Terphenyl 20.1 20.00 101 50 150

Sample ID: MB-8574 SampType: MBLK Units: mg/Kg Prep Date: 8/29/2014 RunNo: 16507 Client ID: MBLKS Batch ID: 8574 Analysis Date: 8/30/2014 SeqNo: 332084

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) ND 20.0 Heavy Oil ND 50.0 Surr: 2-Fluorobiphenyl 19.3 20.00 96.7 50 150 Surr: o-Terphenyl 19.8 20.00 98.8 50 150

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RRPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 5 of 7 Sample Log-In Check List

Client Name: GEI Work Order Number: 1408278 Logged by: Clare Griggs Date Received: 8/28/2014 3:35:00 PM

Chain of Custody 1. Is Chain of Custody complete? Yes No Not Present 2. How was the sample delivered? Client

Log In 3. Coolers are present? Yes No NA Samples received straight from field 4. Shipping container/cooler in good condition? Yes No 5. Custody seals intact on shipping container/cooler? Yes No Not Required

6. Was an attempt made to cool the samples? Yes No NA

7. Were all coolers received at a temperature of >0°C to 10.0°C Yes No NA

8. Sample(s) in proper container(s)? Yes No 9. Sufficient sample volume for indicated test(s)? Yes No 10. Are samples properly preserved? Yes No 11. Was preservative added to bottles? Yes No NA

12. Is the headspace in the VOA vials? Yes No NA 13. Did all samples containers arrive in good condition(unbroken)? Yes No 14. Does paperwork match bottle labels? Yes No

15. Are matrices correctly identified on Chain of Custody? Yes No 16. Is it clear what analyses were requested? Yes No 17. Were all holding times able to be met? Yes No

Special Handling (if applicable) 18. Was client notified of all discrepancies with this order? Yes No NA

Person Notified: Date: By Whom: Via: eMail Phone Fax In Person Regarding: Client Instructions:

19. Additional remarks:

Item Information Item # Temp ºC Condition Sample 23.1

Page 1 of 1 Page 6 of 7 Page 7 of 7 3600 Fremont Ave. N. Seattle, WA 98103 T: (206) 352-3790 F: (206) 352-7178 [email protected] GeoEngineers Ian Young 600 Stewart Street, Suite 1700 Seattle, WA 98101

RE: 8th & Thomas St Lab ID: 1408291

September 08, 2014

Attention Ian Young: Fremont Analytical, Inc. received 10 sample(s) on 8/29/2014 for the analyses presented in the following report. Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Sample Moisture (Percent Moisture) This report consists of the following:

- Case Narrative - Analytical Results - Applicable Quality Control Summary Reports - Chain of Custody

All analyses were performed consistent with the Quality Assurance program of Fremont Analytical, Inc. Please contact the laboratory if you should have any questions about the results.

Thank you for using Fremont Analytical.

Sincerely,

Mike Ridgeway President

www.fremontanalytical.com

Page 1 of 18 Date: 09/08/2014

CLIENT: GeoEngineers Work Order Sample Summary Project: 8th & Thomas St Lab Order: 1408291

Lab Sample ID Client Sample ID Date/Time Collected Date/Time Received 1408291-001 EX-1-3.5 08/26/2014 3:00 PM 08/29/2014 11:20 AM 1408291-002 EX-2-3.5 08/26/2014 3:05 PM 08/29/2014 11:20 AM 1408291-003 EX-3-3.5 08/26/2014 3:10 PM 08/29/2014 11:20 AM 1408291-004 EX-4-3.5 08/26/2014 3:15 PM 08/29/2014 11:20 AM 1408291-005 EX-5-3.5 08/26/2014 3:20 PM 08/29/2014 11:20 AM 1408291-006 EX-6-3.5 08/26/2014 3:25 PM 08/29/2014 11:20 AM 1408291-007 EX-7-16.0 08/26/2014 3:30 PM 08/29/2014 11:20 AM 1408291-008 EX-8-14.0 08/26/2014 3:35 PM 08/29/2014 11:20 AM 1408291-009 EX-9-5.5 08/26/2014 3:40 PM 08/29/2014 11:20 AM 1408291-010 EX-10-5.5 08/26/2014 3:45 PM 08/29/2014 11:20 AM

Note: If no "Time Collected" is supplied, a default of 12:00AM is assigned

Page 2 of 18 Case Narrative WO#: 1408291 Date: 9/8/2014

CLIENT: GeoEngineers Project: 8th & Thomas St

I. SAMPLE RECEIPT: Samples receipt information is recorded on the attached Sample Receipt Checklist.

II. GENERAL REPORTING COMMENTS: Results are reported on a wet weight basis unless dry-weight correction is denoted in the units field on the analytical report ("mg/kg-dry" or "ug/kg-dry").

Matrix Spike (MS) and MS Duplicate (MSD) samples are tested from an analytical batch of "like" matrix to check for possible matrix effect. The MS and MSD will provide site specific matrix data only for those samples which are spiked by the laboratory. The sample chosen for spike purposes may or may not have been a sample submitted in this sample delivery group. The validity of the analytical procedures for which data is reported in this analytical report is determined by the Laboratory Control Sample (LCS) and the Method Blank (MB). The LCS and the MB are processed with the samples and the MS/MSD to ensure method criteria are achieved throughout the entire analytical process.

III. ANALYSES AND EXCEPTIONS: Exceptions associated with this report will be footnoted in the analytical results page(s) or the quality control summary page(s) and/or noted below.

Page 3 of 18 Analytical Report WO#: 1408291 Date Reported: 9/8/2014

Client: GeoEngineers Collection Date: 8/26/2014 3:00:00 PM Project: 8th & Thomas St Lab ID: 1408291-001 Matrix: Soil Client Sample ID: EX-1-3.5 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8582 Analyst: EC

Diesel (Fuel Oil) ND 23.9 mg/Kg-dry 1 9/4/2014 10:39:00 PM Heavy Oil ND 59.7 mg/Kg-dry 1 9/4/2014 10:39:00 PM Surr: 2-Fluorobiphenyl 96.3 50-150 %REC 1 9/4/2014 10:39:00 PM Surr: o-Terphenyl 90.6 50-150 %REC 1 9/4/2014 10:39:00 PM

Sample Moisture (Percent Moisture) Batch ID: R16505 Analyst: KZ

Percent Moisture 22.1 wt% 1 9/2/2014 9:18:37 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 4 of 18 Analytical Report WO#: 1408291 Date Reported: 9/8/2014

Client: GeoEngineers Collection Date: 8/26/2014 3:05:00 PM Project: 8th & Thomas St Lab ID: 1408291-002 Matrix: Soil Client Sample ID: EX-2-3.5 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8582 Analyst: EC

Diesel (Fuel Oil) ND 24.3 mg/Kg-dry 1 9/5/2014 12:12:00 AM Heavy Oil ND 60.8 mg/Kg-dry 1 9/5/2014 12:12:00 AM Surr: 2-Fluorobiphenyl 99.1 50-150 %REC 1 9/5/2014 12:12:00 AM Surr: o-Terphenyl 94.4 50-150 %REC 1 9/5/2014 12:12:00 AM

Sample Moisture (Percent Moisture) Batch ID: R16505 Analyst: KZ

Percent Moisture 25.1 wt% 1 9/2/2014 9:18:37 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 5 of 18 Analytical Report WO#: 1408291 Date Reported: 9/8/2014

Client: GeoEngineers Collection Date: 8/26/2014 3:10:00 PM Project: 8th & Thomas St Lab ID: 1408291-003 Matrix: Soil Client Sample ID: EX-3-3.5 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8582 Analyst: EC

Diesel (Fuel Oil) ND 23.8 mg/Kg-dry 1 9/5/2014 12:43:00 AM Heavy Oil ND 59.4 mg/Kg-dry 1 9/5/2014 12:43:00 AM Surr: 2-Fluorobiphenyl 99.1 50-150 %REC 1 9/5/2014 12:43:00 AM Surr: o-Terphenyl 93.5 50-150 %REC 1 9/5/2014 12:43:00 AM

Sample Moisture (Percent Moisture) Batch ID: R16505 Analyst: KZ

Percent Moisture 26.6 wt% 1 9/2/2014 9:18:37 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 6 of 18 Analytical Report WO#: 1408291 Date Reported: 9/8/2014

Client: GeoEngineers Collection Date: 8/26/2014 3:20:00 PM Project: 8th & Thomas St Lab ID: 1408291-005 Matrix: Soil Client Sample ID: EX-5-3.5 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8582 Analyst: EC

Diesel (Fuel Oil) ND 23.4 mg/Kg-dry 1 9/5/2014 1:12:00 AM Heavy Oil ND 58.4 mg/Kg-dry 1 9/5/2014 1:12:00 AM Heavy Fuel Oil 308 58.4 mg/Kg-dry 1 9/5/2014 1:12:00 AM Surr: 2-Fluorobiphenyl 98.2 50-150 %REC 1 9/5/2014 1:12:00 AM Surr: o-Terphenyl 93.5 50-150 %REC 1 9/5/2014 1:12:00 AM NOTES: Heavy Fuel Oil - Indicates the presence of unresolved compounds in both the Diesel and Lube+ Oil ranges. Chromatographic pattern may resemble Mineral Oil.

Sample Moisture (Percent Moisture) Batch ID: R16505 Analyst: KZ

Percent Moisture 15.3 wt% 1 9/2/2014 9:18:37 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 7 of 18 Analytical Report WO#: 1408291 Date Reported: 9/8/2014

Client: GeoEngineers Collection Date: 8/26/2014 3:25:00 PM Project: 8th & Thomas St Lab ID: 1408291-006 Matrix: Soil Client Sample ID: EX-6-3.5 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8582 Analyst: EC

Diesel (Fuel Oil) ND 27.0 mg/Kg-dry 1 9/5/2014 1:42:00 AM Heavy Oil ND 67.5 mg/Kg-dry 1 9/5/2014 1:42:00 AM Surr: 2-Fluorobiphenyl 101 50-150 %REC 1 9/5/2014 1:42:00 AM Surr: o-Terphenyl 96.3 50-150 %REC 1 9/5/2014 1:42:00 AM

Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Batch ID: 8583 Analyst: MD

Naphthalene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM 2-Methylnaphthalene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM 1-Methylnaphthalene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Acenaphthylene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Acenaphthene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Fluorene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Phenanthrene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Anthracene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Fluoranthene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Pyrene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Benz(a)anthracene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Chrysene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Benzo(b)fluoranthene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Benzo(k)fluoranthene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Benzo(a)pyrene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Indeno(1,2,3-cd)pyrene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Dibenz(a,h)anthracene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Benzo(g,h,i)perylene ND 64.5 µg/Kg-dry 1 9/4/2014 7:41:00 AM Surr: 2-Fluorobiphenyl 75.7 42.7-132 %REC 1 9/4/2014 7:41:00 AM Surr: Terphenyl-d14 (surr) 119 48.8-157 %REC 1 9/4/2014 7:41:00 AM

Sample Moisture (Percent Moisture) Batch ID: R16505 Analyst: KZ

Percent Moisture 27.0 wt% 1 9/2/2014 9:18:37 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 8 of 18 Analytical Report WO#: 1408291 Date Reported: 9/8/2014

Client: GeoEngineers Collection Date: 8/26/2014 3:30:00 PM Project: 8th & Thomas St Lab ID: 1408291-007 Matrix: Soil Client Sample ID: EX-7-16.0 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8582 Analyst: EC

Diesel (Fuel Oil) ND 20.4 mg/Kg-dry 1 9/5/2014 2:12:00 AM Heavy Oil ND 50.9 mg/Kg-dry 1 9/5/2014 2:12:00 AM Surr: 2-Fluorobiphenyl 97.4 50-150 %REC 1 9/5/2014 2:12:00 AM Surr: o-Terphenyl 92.4 50-150 %REC 1 9/5/2014 2:12:00 AM

Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Batch ID: 8583 Analyst: MD

Naphthalene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM 2-Methylnaphthalene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM 1-Methylnaphthalene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Acenaphthylene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Acenaphthene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Fluorene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Phenanthrene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Anthracene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Fluoranthene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Pyrene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Benz(a)anthracene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Chrysene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Benzo(b)fluoranthene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Benzo(k)fluoranthene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Benzo(a)pyrene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Indeno(1,2,3-cd)pyrene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Dibenz(a,h)anthracene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Benzo(g,h,i)perylene ND 56.9 µg/Kg-dry 1 9/4/2014 8:26:00 AM Surr: 2-Fluorobiphenyl 58.1 42.7-132 %REC 1 9/4/2014 8:26:00 AM Surr: Terphenyl-d14 (surr) 113 48.8-157 %REC 1 9/4/2014 8:26:00 AM

Sample Moisture (Percent Moisture) Batch ID: R16505 Analyst: KZ

Percent Moisture 12.7 wt% 1 9/2/2014 9:18:37 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 9 of 18 Analytical Report WO#: 1408291 Date Reported: 9/8/2014

Client: GeoEngineers Collection Date: 8/26/2014 3:35:00 PM Project: 8th & Thomas St Lab ID: 1408291-008 Matrix: Soil Client Sample ID: EX-8-14.0 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8582 Analyst: EC

Diesel (Fuel Oil) ND 26.1 mg/Kg-dry 1 9/5/2014 2:42:00 AM Diesel Range Organics (C12-C24) 225 26.1 mg/Kg-dry 1 9/5/2014 2:42:00 AM Heavy Oil ND 65.2 mg/Kg-dry 1 9/5/2014 2:42:00 AM Surr: 2-Fluorobiphenyl 97.0 50-150 %REC 1 9/5/2014 2:42:00 AM Surr: o-Terphenyl 92.6 50-150 %REC 1 9/5/2014 2:42:00 AM NOTES: DRO - Indicates the presence of unresolved compounds eluting from dodecane through tetracosane (C12-C24).

Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Batch ID: 8583 Analyst: MD

Naphthalene 320 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM 2-Methylnaphthalene 200 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM 1-Methylnaphthalene 350 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Acenaphthylene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Acenaphthene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Fluorene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Phenanthrene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Anthracene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Fluoranthene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Pyrene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Benz(a)anthracene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Chrysene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Benzo(b)fluoranthene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Benzo(k)fluoranthene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Benzo(a)pyrene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Indeno(1,2,3-cd)pyrene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Dibenz(a,h)anthracene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Benzo(g,h,i)perylene ND 68.8 µg/Kg-dry 1 9/4/2014 9:11:00 AM Surr: 2-Fluorobiphenyl 79.8 42.7-132 %REC 1 9/4/2014 9:11:00 AM Surr: Terphenyl-d14 (surr) 120 48.8-157 %REC 1 9/4/2014 9:11:00 AM

Sample Moisture (Percent Moisture) Batch ID: R16505 Analyst: KZ

Percent Moisture 27.9 wt% 1 9/2/2014 9:18:37 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 10 of 18 Analytical Report WO#: 1408291 Date Reported: 9/8/2014

Client: GeoEngineers Collection Date: 8/26/2014 3:40:00 PM Project: 8th & Thomas St Lab ID: 1408291-009 Matrix: Soil Client Sample ID: EX-9-5.5 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8582 Analyst: EC

Diesel (Fuel Oil) ND 23.4 mg/Kg-dry 1 9/5/2014 3:12:00 AM Heavy Oil ND 58.4 mg/Kg-dry 1 9/5/2014 3:12:00 AM Surr: 2-Fluorobiphenyl 96.6 50-150 %REC 1 9/5/2014 3:12:00 AM Surr: o-Terphenyl 90.7 50-150 %REC 1 9/5/2014 3:12:00 AM

Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Batch ID: 8583 Analyst: MD

Naphthalene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM 2-Methylnaphthalene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM 1-Methylnaphthalene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Acenaphthylene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Acenaphthene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Fluorene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Phenanthrene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Anthracene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Fluoranthene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Pyrene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Benz(a)anthracene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Chrysene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Benzo(b)fluoranthene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Benzo(k)fluoranthene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Benzo(a)pyrene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Indeno(1,2,3-cd)pyrene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Dibenz(a,h)anthracene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Benzo(g,h,i)perylene ND 62.6 µg/Kg-dry 1 9/4/2014 9:57:00 AM Surr: 2-Fluorobiphenyl 62.7 42.7-132 %REC 1 9/4/2014 9:57:00 AM Surr: Terphenyl-d14 (surr) 123 48.8-157 %REC 1 9/4/2014 9:57:00 AM

Sample Moisture (Percent Moisture) Batch ID: R16505 Analyst: KZ

Percent Moisture 25.0 wt% 1 9/2/2014 9:18:37 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 11 of 18 Date: 9/8/2014

Work Order: 1408291 QC SUMMARY REPORT CLIENT: GeoEngineers Project: 8th & Thomas St Diesel and Heavy Oil by NWTPH-Dx/Dx Ext.

Sample ID: 1408291-001ADUP SampType: DUP Units: mg/Kg-dry Prep Date: 8/29/2014 RunNo: 16589 Client ID: EX-1-3.5 Batch ID: 8582 Analysis Date: 9/4/2014 SeqNo: 333656

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) ND 24.0 0 30 Heavy Oil ND 59.9 0 30 Surr: 2-Fluorobiphenyl 24.0 23.97 100 50 150 0 Surr: o-Terphenyl 22.8 23.97 95.3 50 150 0

Sample ID: LCS-8582 SampType: LCS Units: mg/Kg Prep Date: 8/29/2014 RunNo: 16589 Client ID: LCSS Batch ID: 8582 Analysis Date: 9/4/2014 SeqNo: 333668

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) 458 20.0 500.0 0 91.6 65 135 Surr: 2-Fluorobiphenyl 19.0 20.00 95.0 50 150 Surr: o-Terphenyl 17.9 20.00 89.5 50 150

Sample ID: MB-8582 SampType: MBLK Units: mg/Kg Prep Date: 8/29/2014 RunNo: 16589 Client ID: MBLKS Batch ID: 8582 Analysis Date: 9/4/2014 SeqNo: 333669

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) ND 20.0 Heavy Oil ND 50.0 Surr: 2-Fluorobiphenyl 19.2 20.00 96.0 50 150 Surr: o-Terphenyl 18.9 20.00 94.3 50 150

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RRPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 12 of 18 Date: 9/8/2014

Work Order: 1408291 QC SUMMARY REPORT CLIENT: GeoEngineers Project: 8th & Thomas St Polyaromatic Hydrocarbons by EPA Method 8270 (SIM)

Sample ID: MB-8583 SampType: MBLK Units: µg/Kg Prep Date: 8/29/2014 RunNo: 16579 Client ID: MBLKS Batch ID: 8583 Analysis Date: 9/4/2014 SeqNo: 333438

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Naphthalene ND 50.0 2-Methylnaphthalene ND 50.0 1-Methylnaphthalene ND 50.0 Acenaphthylene ND 50.0 Acenaphthene ND 50.0 Fluorene ND 50.0 Phenanthrene ND 50.0 Anthracene ND 50.0 Fluoranthene ND 50.0 Pyrene ND 50.0 Benz(a)anthracene ND 50.0 Chrysene ND 50.0 Benzo(b)fluoranthene ND 50.0 Benzo(k)fluoranthene ND 50.0 Benzo(a)pyrene ND 50.0 Indeno(1,2,3-cd)pyrene ND 50.0 Dibenz(a,h)anthracene ND 50.0 Benzo(g,h,i)perylene ND 50.0 Surr: 2-Fluorobiphenyl 390 500.0 78.0 42.7 132 Surr: Terphenyl-d14 (surr) 561 500.0 112 48.8 157

Sample ID: LCS-8583 SampType: LCS Units: µg/Kg Prep Date: 8/29/2014 RunNo: 16579 Client ID: LCSS Batch ID: 8583 Analysis Date: 9/4/2014 SeqNo: 333439 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Naphthalene 971 50.0 1,000 0 97.1 61.6 125 2-Methylnaphthalene 966 50.0 1,000 0 96.6 58.2 129 1-Methylnaphthalene 1,010 50.0 1,000 0 101 56.4 132

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RRPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 13 of 18 Date: 9/8/2014

Work Order: 1408291 QC SUMMARY REPORT CLIENT: GeoEngineers Project: 8th & Thomas St Polyaromatic Hydrocarbons by EPA Method 8270 (SIM)

Sample ID: LCS-8583 SampType: LCS Units: µg/Kg Prep Date: 8/29/2014 RunNo: 16579 Client ID: LCSS Batch ID: 8583 Analysis Date: 9/4/2014 SeqNo: 333439

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Acenaphthylene 1,010 50.0 1,000 0 101 52.2 133 Acenaphthene 1,050 50.0 1,000 0 105 54 131 Fluorene 1,060 50.0 1,000 0 106 53.4 131 Phenanthrene 1,030 50.0 1,000 0 103 55.6 128 Anthracene 1,050 50.0 1,000 0 105 51 132 Fluoranthene 1,050 50.0 1,000 0 105 48.4 134 Pyrene 1,060 50.0 1,000 0 106 48.6 135 Benz(a)anthracene 1,140 50.0 1,000 0 114 41.9 136 Chrysene 1,070 50.0 1,000 0 107 51.4 135 Benzo(b)fluoranthene 1,210 50.0 1,000 0 121 39.7 137 Benzo(k)fluoranthene 1,110 50.0 1,000 0 111 45.7 138 Benzo(a)pyrene 1,040 50.0 1,000 0 104 45.3 135 Indeno(1,2,3-cd)pyrene 1,230 50.0 1,000 0 123 45.4 137 Dibenz(a,h)anthracene 960 50.0 1,000 0 96.0 45.8 134 Benzo(g,h,i)perylene 1,020 50.0 1,000 0 102 45 134 Surr: 2-Fluorobiphenyl 311 500.0 62.3 42.7 132 Surr: Terphenyl-d14 (surr) 550 500.0 110 48.8 157

Sample ID: 1408291-006ADUP SampType: DUP Units: µg/Kg-dry Prep Date: 8/29/2014 RunNo: 16579 Client ID: EX-6-3.5 Batch ID: 8583 Analysis Date: 9/4/2014 SeqNo: 333441

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Naphthalene ND 63.4 0 30 2-Methylnaphthalene ND 63.4 0 30 1-Methylnaphthalene ND 63.4 0 30 Acenaphthylene ND 63.4 0 30 Acenaphthene ND 63.4 0 30 Fluorene ND 63.4 0 30

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RRPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 14 of 18 Date: 9/8/2014

Work Order: 1408291 QC SUMMARY REPORT CLIENT: GeoEngineers Project: 8th & Thomas St Polyaromatic Hydrocarbons by EPA Method 8270 (SIM)

Sample ID: 1408291-006ADUP SampType: DUP Units: µg/Kg-dry Prep Date: 8/29/2014 RunNo: 16579 Client ID: EX-6-3.5 Batch ID: 8583 Analysis Date: 9/4/2014 SeqNo: 333441

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Phenanthrene ND 63.4 0 30 Anthracene ND 63.4 0 30 Fluoranthene ND 63.4 0 30 Pyrene ND 63.4 0 30 Benz(a)anthracene ND 63.4 0 30 Chrysene ND 63.4 0 30 Benzo(b)fluoranthene ND 63.4 0 30 Benzo(k)fluoranthene ND 63.4 0 30 Benzo(a)pyrene ND 63.4 0 30 Indeno(1,2,3-cd)pyrene ND 63.4 0 30 Dibenz(a,h)anthracene ND 63.4 0 30 Benzo(g,h,i)perylene ND 63.4 0 30 Surr: 2-Fluorobiphenyl 367 633.9 57.9 42.7 132 0 Surr: Terphenyl-d14 (surr) 389 633.9 61.4 48.8 157 0

Sample ID: 1408291-007AMS SampType: MS Units: µg/Kg-dry Prep Date: 8/29/2014 RunNo: 16579 Client ID: EX-7-16.0 Batch ID: 8583 Analysis Date: 9/4/2014 SeqNo: 333443

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Naphthalene 923 56.4 1,129 0 81.8 42.9 138 2-Methylnaphthalene 996 56.4 1,129 0 88.3 42.8 151 1-Methylnaphthalene 998 56.4 1,129 0 88.4 41.6 148 Acenaphthylene 1,090 56.4 1,129 0 96.9 32.6 160 Acenaphthene 1,120 56.4 1,129 0 99.3 46.3 142 Fluorene 1,100 56.4 1,129 0 97.2 43.4 153 Phenanthrene 1,070 56.4 1,129 0 94.8 45.5 140 Anthracene 1,080 56.4 1,129 0 95.5 32.6 160 Fluoranthene 1,100 56.4 1,129 0 97.7 44.6 161

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RRPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 15 of 18 Date: 9/8/2014

Work Order: 1408291 QC SUMMARY REPORT CLIENT: GeoEngineers Project: 8th & Thomas St Polyaromatic Hydrocarbons by EPA Method 8270 (SIM)

Sample ID: 1408291-007AMS SampType: MS Units: µg/Kg-dry Prep Date: 8/29/2014 RunNo: 16579 Client ID: EX-7-16.0 Batch ID: 8583 Analysis Date: 9/4/2014 SeqNo: 333443

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Pyrene 1,110 56.4 1,129 0 98.3 48.3 158 Benz(a)anthracene 1,190 56.4 1,129 0 105 57.5 169 Chrysene 1,070 56.4 1,129 0 95.2 45.2 146 Benzo(b)fluoranthene 1,160 56.4 1,129 0 102 42.2 168 Benzo(k)fluoranthene 1,040 56.4 1,129 0 91.9 48 161 Benzo(a)pyrene 1,120 56.4 1,129 0 99.6 34.4 179 Indeno(1,2,3-cd)pyrene 1,260 56.4 1,129 0 111 41.1 165 Dibenz(a,h)anthracene 1,090 56.4 1,129 0 96.4 38.1 166 Benzo(g,h,i)perylene 1,040 56.4 1,129 0 91.9 45.6 157 Surr: 2-Fluorobiphenyl 274 564.4 48.6 42.7 132 Surr: Terphenyl-d14 (surr) 579 564.4 103 48.8 157

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RRPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 16 of 18 Sample Log-In Check List

Client Name: GEI Work Order Number: 1408291 Logged by: Clare Griggs Date Received: 8/29/2014 11:20:00 AM

Chain of Custody 1. Is Chain of Custody complete? Yes No Not Present 2. How was the sample delivered? Client

Log In 3. Coolers are present? Yes No NA

4. Shipping container/cooler in good condition? Yes No 5. Custody seals intact on shipping container/cooler? Yes No Not Required

6. Was an attempt made to cool the samples? Yes No NA

7. Were all coolers received at a temperature of >0°C to 10.0°C Yes No NA

8. Sample(s) in proper container(s)? Yes No 9. Sufficient sample volume for indicated test(s)? Yes No 10. Are samples properly preserved? Yes No 11. Was preservative added to bottles? Yes No NA

12. Is the headspace in the VOA vials? Yes No NA 13. Did all samples containers arrive in good condition(unbroken)? Yes No 14. Does paperwork match bottle labels? Yes No

15. Are matrices correctly identified on Chain of Custody? Yes No 16. Is it clear what analyses were requested? Yes No 17. Were all holding times able to be met? Yes No

Special Handling (if applicable) 18. Was client notified of all discrepancies with this order? Yes No NA

Person Notified: Date: By Whom: Via: eMail Phone Fax In Person Regarding: Client Instructions:

19. Additional remarks:

Item Information Item # Temp ºC Condition Cooler 7.2 Good Sample 4.2 Good Temp Blank 0.2 Good

Page 1 of 1 Page 17 of 18 Page 18 of 18 3600 Fremont Ave. N. Seattle, WA 98103 T: (206) 352-3790 F: (206) 352-7178 [email protected] GeoEngineers Ian Young 600 Stewart Street, Suite 1700 Seattle, WA 98101

RE: Holly Press Building Site Lab ID: 1409252

September 30, 2014

Attention Ian Young:

Fremont Analytical, Inc. received 6 sample(s) on 9/15/2014 for the analyses presented in the following report. Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Sample Moisture (Percent Moisture) This report consists of the following:

- Case Narrative - Analytical Results - Applicable Quality Control Summary Reports - Chain of Custody

All analyses were performed consistent with the Quality Assurance program of Fremont Analytical, Inc. Please contact the laboratory if you should have any questions about the results.

Thank you for using Fremont Analytical.

Sincerely,

Mike Ridgeway President

www.fremontanalytical.com Date: 09/30/2014

CLIENT: GeoEngineers Work Order Sample Summary Project: Holly Press Building Site Lab Order: 1409252

Lab Sample ID Client Sample ID Date/Time Collected Date/Time Received 1409252-001 EX-11-3.5 09/13/2014 8:00 AM 09/15/2014 3:18 PM 1409252-002 EX-12-3.0 09/13/2014 8:05 AM 09/15/2014 3:18 PM 1409252-003 EX-13-7.0 09/13/2014 8:10 AM 09/15/2014 3:18 PM 1409252-004 EX-14-3.5 09/13/2014 8:15 AM 09/15/2014 3:18 PM 1409252-005 EX-15-5.0 09/13/2014 8:20 AM 09/15/2014 3:18 PM 1409252-006 EX-16-2.5 09/13/2014 8:25 AM 09/15/2014 3:18 PM

Note: If no "Time Collected" is supplied, a default of 12:00AM is assigned Case Narrative WO#: 1409252 Date: 9/30/2014

CLIENT: GeoEngineers Project: Holly Press Building Site

I. SAMPLE RECEIPT: Samples receipt information is recorded on the attached Sample Receipt Checklist.

II. GENERAL REPORTING COMMENTS: Results are reported on a wet weight basis unless dry-weight correction is denoted in the units field on the analytical report ("mg/kg-dry" or "ug/kg-dry").

Matrix Spike (MS) and MS Duplicate (MSD) samples are tested from an analytical batch of "like" matrix to check for possible matrix effect. The MS and MSD will provide site specific matrix data only for those samples which are spiked by the laboratory. The sample chosen for spike purposes may or may not have been a sample submitted in this sample delivery group. The validity of the analytical procedures for which data is reported in this analytical report is determined by the Laboratory Control Sample (LCS) and the Method Blank (MB). The LCS and the MB are processed with the samples and the MS/MSD to ensure method criteria are achieved throughout the entire analytical process.

III. ANALYSES AND EXCEPTIONS: Exceptions associated with this report will be footnoted in the analytical results page(s) or the quality control summary page(s) and/or noted below. Analytical Report

WO#: 1409252 Date Reported: 9/30/2014

Client: GeoEngineers Collection Date: 9/13/2014 8:00:00 AM Project: Holly Press Building Site Lab ID: 1409252-001 Matrix: Soil Client Sample ID: EX-11-3.5 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8829 Analyst: AK

Diesel (Fuel Oil) ND 24.3 mg/Kg-dry 1 9/24/2014 8:06:00 PM Heavy Oil ND 60.7 mg/Kg-dry 1 9/24/2014 8:06:00 PM Surr: 2-Fluorobiphenyl 89.4 50-150 %REC 1 9/24/2014 8:06:00 PM Surr: o-Terphenyl 88.8 50-150 %REC 1 9/24/2014 8:06:00 PM

Sample Moisture (Percent Moisture) Batch ID: R16949 Analyst: TK

Percent Moisture 28.0 wt% 1 9/24/2014 9:24:45 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Analytical Report

WO#: 1409252 Date Reported: 9/30/2014

Client: GeoEngineers Collection Date: 9/13/2014 8:10:00 AM Project: Holly Press Building Site Lab ID: 1409252-003 Matrix: Soil Client Sample ID: EX-13-7.0 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8829 Analyst: AK

Diesel (Fuel Oil) ND 25.7 mg/Kg-dry 1 9/24/2014 8:37:00 PM Heavy Oil ND 64.2 mg/Kg-dry 1 9/24/2014 8:37:00 PM Surr: 2-Fluorobiphenyl 88.6 50-150 %REC 1 9/24/2014 8:37:00 PM Surr: o-Terphenyl 82.7 50-150 %REC 1 9/24/2014 8:37:00 PM

Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Batch ID: 8840 Analyst: DB

Naphthalene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM 2-Methylnaphthalene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM 1-Methylnaphthalene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Acenaphthylene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Acenaphthene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Fluorene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Phenanthrene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Anthracene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Fluoranthene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Pyrene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Benz(a)anthracene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Chrysene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Benzo(b)fluoranthene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Benzo(k)fluoranthene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Benzo(a)pyrene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Indeno(1,2,3-cd)pyrene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Dibenz(a,h)anthracene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Benzo(g,h,i)perylene ND 65.4 µg/Kg-dry 1 9/26/2014 8:13:00 PM Surr: 2-Fluorobiphenyl 59.9 42.7-132 %REC 1 9/26/2014 8:13:00 PM Surr: Terphenyl-d14 (surr) 117 48.8-157 %REC 1 9/26/2014 8:13:00 PM

Sample Moisture (Percent Moisture) Batch ID: R16949 Analyst: TK

Percent Moisture 26.1 wt% 1 9/24/2014 9:24:45 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Analytical Report

WO#: 1409252 Date Reported: 9/30/2014

Client: GeoEngineers Collection Date: 9/13/2014 8:20:00 AM Project: Holly Press Building Site Lab ID: 1409252-005 Matrix: Soil Client Sample ID: EX-15-5.0 Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8829 Analyst: AK

Diesel (Fuel Oil) ND 26.8 mg/Kg-dry 1 9/24/2014 9:08:00 PM Heavy Oil ND 67.0 mg/Kg-dry 1 9/24/2014 9:08:00 PM Surr: 2-Fluorobiphenyl 88.1 50-150 %REC 1 9/24/2014 9:08:00 PM Surr: o-Terphenyl 87.2 50-150 %REC 1 9/24/2014 9:08:00 PM

Polyaromatic Hydrocarbons by EPA Method 8270 (SIM) Batch ID: 8840 Analyst: DB

Naphthalene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM 2-Methylnaphthalene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM 1-Methylnaphthalene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Acenaphthylene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Acenaphthene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Fluorene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Phenanthrene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Anthracene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Fluoranthene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Pyrene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Benz(a)anthracene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Chrysene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Benzo(b)fluoranthene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Benzo(k)fluoranthene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Benzo(a)pyrene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Indeno(1,2,3-cd)pyrene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Dibenz(a,h)anthracene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Benzo(g,h,i)perylene ND 64.9 µg/Kg-dry 1 9/26/2014 8:36:00 PM Surr: 2-Fluorobiphenyl 66.9 42.7-132 %REC 1 9/26/2014 8:36:00 PM Surr: Terphenyl-d14 (surr) 111 48.8-157 %REC 1 9/26/2014 8:36:00 PM

Sample Moisture (Percent Moisture) Batch ID: R16949 Analyst: TK

Percent Moisture 27.6 wt% 1 9/24/2014 9:24:45 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits Date: 9/30/2014

Work Order: 1409252 QC SUMMARY REPORT CLIENT: GeoEngineers Project: Holly Press Building Site Diesel and Heavy Oil by NWTPH-Dx/Dx Ext.

Sample ID 1409259-001ADUP SampType: DUP Units: mg/Kg-dry Prep Date: 9/24/2014 RunNo: 17012 Client ID: BATCH Batch ID: 8829 Analysis Date: 9/24/2014 SeqNo: 341044 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) ND 20.2 0 30 Heavy Oil ND 50.4 0 30 Surr: 2-Fluorobiphenyl 18.2 20.16 90.2 50 150 0 Surr: o-Terphenyl 14.9 20.16 73.9 50 150 0

Sample ID LCS-8829 SampType: LCS Units: mg/Kg Prep Date: 9/24/2014 RunNo: 17012 Client ID: LCSS Batch ID: 8829 Analysis Date: 9/24/2014 SeqNo: 341049 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) 440 20.0 500.0 0 88.0 65 135 Surr: 2-Fluorobiphenyl 20.0 20.00 100 50 150 Surr: o-Terphenyl 17.4 20.00 87.0 50 150

Sample ID MB-8829 SampType: MBLK Units: mg/Kg Prep Date: 9/24/2014 RunNo: 17012 Client ID: MBLKS Batch ID: 8829 Analysis Date: 9/24/2014 SeqNo: 341050 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) ND 20.0 Heavy Oil 60.1 50.0 Surr: 2-Fluorobiphenyl 17.9 20.00 89.6 50 150 Surr: o-Terphenyl 14.7 20.00 73.3 50 150

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Date: 9/30/2014

Work Order: 1409252 QC SUMMARY REPORT CLIENT: GeoEngineers Project: Holly Press Building Site Polyaromatic Hydrocarbons by EPA Method 8270 (SIM)

Sample ID MB-8840 SampType: MBLK Units: µg/Kg Prep Date: 9/25/2014 RunNo: 17073 Client ID: MBLKS Batch ID: 8840 Analysis Date: 9/26/2014 SeqNo: 342028 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Naphthalene ND 50.0 2-Methylnaphthalene ND 50.0 1-Methylnaphthalene ND 50.0 Acenaphthylene ND 50.0 Acenaphthene ND 50.0 Fluorene ND 50.0 Phenanthrene ND 50.0 Anthracene ND 50.0 Fluoranthene ND 50.0 Pyrene ND 50.0 Benz(a)anthracene ND 50.0 Chrysene ND 50.0 Benzo(b)fluoranthene ND 50.0 Benzo(k)fluoranthene ND 50.0 Benzo(a)pyrene ND 50.0 Indeno(1,2,3-cd)pyrene ND 50.0 Dibenz(a,h)anthracene ND 50.0 Benzo(g,h,i)perylene ND 50.0 Surr: 2-Fluorobiphenyl 559 500.0 112 42.7 132 Surr: Terphenyl-d14 (surr) 588 500.0 118 48.8 157

Sample ID LCS-8840 SampType: LCS Units: µg/Kg Prep Date: 9/25/2014 RunNo: 17073 Client ID: LCSS Batch ID: 8840 Analysis Date: 9/26/2014 SeqNo: 342029 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Naphthalene 1,000 50.0 1,000 0 100 61.6 125 2-Methylnaphthalene 1,000 50.0 1,000 0 100 58.2 129 1-Methylnaphthalene 1,010 50.0 1,000 0 101 56.4 132

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Date: 9/30/2014

Work Order: 1409252 QC SUMMARY REPORT CLIENT: GeoEngineers Project: Holly Press Building Site Polyaromatic Hydrocarbons by EPA Method 8270 (SIM)

Sample ID LCS-8840 SampType: LCS Units: µg/Kg Prep Date: 9/25/2014 RunNo: 17073 Client ID: LCSS Batch ID: 8840 Analysis Date: 9/26/2014 SeqNo: 342029 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Acenaphthylene 1,020 50.0 1,000 0 102 52.2 133 Acenaphthene 982 50.0 1,000 0 98.2 54 131 Fluorene 976 50.0 1,000 0 97.6 53.4 131 Phenanthrene 953 50.0 1,000 0 95.3 55.6 128 Anthracene 953 50.0 1,000 0 95.3 51 132 Fluoranthene 995 50.0 1,000 0 99.5 48.4 134 Pyrene 989 50.0 1,000 0 98.9 48.6 135 Benz(a)anthracene 1,020 50.0 1,000 0 102 41.9 136 Chrysene 990 50.0 1,000 0 99.1 51.4 135 Benzo(b)fluoranthene 940 50.0 1,000 0 94.0 39.7 137 Benzo(k)fluoranthene 1,130 50.0 1,000 0 113 45.7 138 Benzo(a)pyrene 1,060 50.0 1,000 0 106 45.3 135 Indeno(1,2,3-cd)pyrene 921 50.0 1,000 0 92.1 45.4 137 Dibenz(a,h)anthracene 908 50.0 1,000 0 90.8 45.8 134 Benzo(g,h,i)perylene 1,000 50.0 1,000 0 100 45 134 Surr: 2-Fluorobiphenyl 523 500.0 105 42.7 132 Surr: Terphenyl-d14 (surr) 550 500.0 110 48.8 157

Sample ID 1409143-004ADUP SampType: DUP Units: µg/Kg-dry Prep Date: 9/25/2014 RunNo: 17073 Client ID: BATCH Batch ID: 8840 Analysis Date: 9/26/2014 SeqNo: 342030 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Naphthalene ND 52.1 0 30 2-Methylnaphthalene 73.4 52.1 75.06 2.20 30 1-Methylnaphthalene ND 52.1 0 30 Acenaphthylene ND 52.1 0 30 Acenaphthene ND 52.1 0 30 Fluorene ND 52.1 0 30

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Date: 9/30/2014

Work Order: 1409252 QC SUMMARY REPORT CLIENT: GeoEngineers Project: Holly Press Building Site Polyaromatic Hydrocarbons by EPA Method 8270 (SIM)

Sample ID 1409143-004ADUP SampType: DUP Units: µg/Kg-dry Prep Date: 9/25/2014 RunNo: 17073 Client ID: BATCH Batch ID: 8840 Analysis Date: 9/26/2014 SeqNo: 342030 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Phenanthrene ND 52.1 0 30 Anthracene ND 52.1 0 30 Fluoranthene ND 52.1 0 30 Pyrene ND 52.1 0 30 Benz(a)anthracene ND 52.1 0 30 Chrysene ND 52.1 0 30 Benzo(b)fluoranthene ND 52.1 0 30 Benzo(k)fluoranthene ND 52.1 0 30 Benzo(a)pyrene ND 52.1 0 30 Indeno(1,2,3-cd)pyrene ND 52.1 0 30 Dibenz(a,h)anthracene ND 52.1 0 30 Benzo(g,h,i)perylene ND 52.1 0 30 Surr: 2-Fluorobiphenyl 464 520.7 89.2 42.7 132 0 Surr: Terphenyl-d14 (surr) 559 520.7 107 48.8 157 0

Sample ID 1409143-005AMS SampType: MS Units: µg/Kg-dry Prep Date: 9/25/2014 RunNo: 17073 Client ID: BATCH Batch ID: 8840 Analysis Date: 9/26/2014 SeqNo: 342031 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Naphthalene 1,090 51.6 1,032 230.6 83.7 42.9 138 2-Methylnaphthalene 1,290 51.6 1,032 408.6 85.0 42.8 151 1-Methylnaphthalene 1,150 51.6 1,032 206.0 91.2 41.6 148 Acenaphthylene 1,040 51.6 1,032 0 100 32.6 160 Acenaphthene 985 51.6 1,032 0 95.4 46.3 142 Fluorene 1,010 51.6 1,032 0 97.6 43.4 153 Phenanthrene 985 51.6 1,032 0 95.4 45.5 140 Anthracene 989 51.6 1,032 0 95.8 32.6 160 Fluoranthene 1,030 51.6 1,032 0 99.7 44.6 161

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Date: 9/30/2014

Work Order: 1409252 QC SUMMARY REPORT CLIENT: GeoEngineers Project: Holly Press Building Site Polyaromatic Hydrocarbons by EPA Method 8270 (SIM)

Sample ID 1409143-005AMS SampType: MS Units: µg/Kg-dry Prep Date: 9/25/2014 RunNo: 17073 Client ID: BATCH Batch ID: 8840 Analysis Date: 9/26/2014 SeqNo: 342031 Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Pyrene 1,010 51.6 1,032 0 98.2 48.3 158 Benz(a)anthracene 1,030 51.6 1,032 0 100 57.5 169 Chrysene 1,020 51.6 1,032 0 98.6 45.2 146 Benzo(b)fluoranthene 1,100 51.6 1,032 0 106 42.2 168 Benzo(k)fluoranthene 999 51.6 1,032 0 96.7 48 161 Benzo(a)pyrene 1,090 51.6 1,032 0 106 34.4 179 Indeno(1,2,3-cd)pyrene 985 51.6 1,032 0 95.4 41.1 165 Dibenz(a,h)anthracene 988 51.6 1,032 0 95.7 38.1 166 Benzo(g,h,i)perylene 1,070 51.6 1,032 0 103 45.6 157 Surr: 2-Fluorobiphenyl 503 516.2 97.5 42.7 132 Surr: Terphenyl-d14 (surr) 552 516.2 107 48.8 157

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Sample Log-In Check List

Client Name: GEI Work Order Number: 1409252 Logged by: Clare Griggs Date Received: 9/15/2014 3:18:00 PM

Chain of Custody 1. Is Chain of Custody complete? Yes No Not Present 2. How was the sample delivered? Client

Log In 3. Coolers are present? Yes No NA

4. Shipping container/cooler in good condition? Yes No 5. Custody seals intact on shipping container/cooler? Yes No Not Required

6. Was an attempt made to cool the samples? Yes No NA

7. Were all coolers received at a temperature of >0°C to 10.0°C Yes No NA

8. Sample(s) in proper container(s)? Yes No 9. Sufficient sample volume for indicated test(s)? Yes No 10. Are samples properly preserved? Yes No 11. Was preservative added to bottles? Yes No NA

12. Is the headspace in the VOA vials? Yes No NA 13. Did all samples containers arrive in good condition(unbroken)? Yes No 14. Does paperwork match bottle labels? Yes No

15. Are matrices correctly identified on Chain of Custody? Yes No 16. Is it clear what analyses were requested? Yes No 17. Were all holding times able to be met? Yes No

Special Handling (if applicable) 18. Was client notified of all discrepancies with this order? Yes No NA

Person Notified: Date By Whom: Via: eMail Phone Fax In Person Regarding: Client Instructions:

19. Additional remarks:

Item Information Item # Temp ºC Condition Cooler 1.1 Good Sample 0.7 Good

Page 1 of 1

3600 Fremont Ave. N. Seattle, WA 98103 T: (206) 352-3790 F: (206) 352-7178 [email protected] GeoEngineers Ian Young 600 Stewart Street, Suite 1700 Seattle, WA 98101

RE: 8th & Thomas Lab ID: 1409299

October 02, 2014

Attention Ian Young:

Fremont Analytical, Inc. received 5 sample(s) on 9/24/2014 for the analyses presented in the following report. Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Sample Moisture (Percent Moisture) This report consists of the following:

- Case Narrative - Analytical Results - Applicable Quality Control Summary Reports - Chain of Custody

All analyses were performed consistent with the Quality Assurance program of Fremont Analytical, Inc. Please contact the laboratory if you should have any questions about the results.

Thank you for using Fremont Analytical.

Sincerely,

Mike Ridgeway President

www.fremontanalytical.com

Page 1 of 10 Date: 10/02/2014

CLIENT: GeoEngineers Work Order Sample Summary Project: 8th & Thomas Lab Order: 1409299

Lab Sample ID Client Sample ID Date/Time Collected Date/Time Received 1409299-001 EX-17-26.0 09/24/2014 9:02 AM 09/24/2014 12:00 PM 1409299-002 EX-18-20.0 09/24/2014 9:05 AM 09/24/2014 12:00 PM 1409299-003 EX-19-20.0 09/24/2014 9:07 AM 09/24/2014 12:00 PM 1409299-004 EX-20-20.0 09/24/2014 9:10 AM 09/24/2014 12:00 PM 1409299-005 EX-21-18.0 09/24/2014 10:30 AM 09/24/2014 12:00 PM

Note: If no "Time Collected" is supplied, a default of 12:00AM is assigned

Page 2 of 10 Case Narrative WO#: 1409299 Date: 10/2/2014

CLIENT: GeoEngineers Project: 8th & Thomas

I. SAMPLE RECEIPT: Samples receipt information is recorded on the attached Sample Receipt Checklist.

II. GENERAL REPORTING COMMENTS: Results are reported on a wet weight basis unless dry-weight correction is denoted in the units field on the analytical report ("mg/kg-dry" or "ug/kg-dry").

The validity of the analytical procedures for which data is reported in this analytical report is determined by the Laboratory Control Sample (LCS) and the Method Blank (MB). The LCS and the MB are processed with the samples to ensure method criteria are achieved throughout the entire analytical process.

III. ANALYSES AND EXCEPTIONS: Exceptions associated with this report will be footnoted in the analytical results page(s) or the quality control summary page(s) and/or noted below.

Page 3 of 10 Analytical Report

WO#: 1409299 Date Reported: 10/2/2014

CLIENT: GeoEngineers Project: 8th & Thomas

Lab ID: 1409299-001 Collection Date: 9/24/2014 9:02:00 AM Client Sample ID: EX-17-26.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8846 Analyst: AK

Diesel (Fuel Oil) ND 21.5 mg/Kg-dry 1 9/26/2014 12:33:00 AM Heavy Oil ND 53.8 mg/Kg-dry 1 9/26/2014 12:33:00 AM Surr: 2-Fluorobiphenyl 93.2 50-150 %REC 1 9/26/2014 12:33:00 AM Surr: o-Terphenyl 77.8 50-150 %REC 1 9/26/2014 12:33:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17010 Analyst: TK

Percent Moisture 8.93 wt% 1 9/25/2014 12:10:01 PM

Lab ID: 1409299-002 Collection Date: 9/24/2014 9:05:00 AM Client Sample ID: EX-18-20.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8846 Analyst: AK

Diesel (Fuel Oil) ND 25.0 mg/Kg-dry 1 9/26/2014 1:04:00 AM Heavy Oil ND 62.5 mg/Kg-dry 1 9/26/2014 1:04:00 AM Surr: 2-Fluorobiphenyl 93.6 50-150 %REC 1 9/26/2014 1:04:00 AM Surr: o-Terphenyl 89.8 50-150 %REC 1 9/26/2014 1:04:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17010 Analyst: TK

Percent Moisture 23.7 wt% 1 9/25/2014 12:10:01 PM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 4 of 10 Analytical Report

WO#: 1409299 Date Reported: 10/2/2014

CLIENT: GeoEngineers Project: 8th & Thomas

Lab ID: 1409299-003 Collection Date: 9/24/2014 9:07:00 AM Client Sample ID: EX-19-20.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8846 Analyst: AK

Diesel (Fuel Oil) ND 23.1 mg/Kg-dry 1 9/26/2014 1:35:00 AM Heavy Oil ND 57.7 mg/Kg-dry 1 9/26/2014 1:35:00 AM Surr: 2-Fluorobiphenyl 93.4 50-150 %REC 1 9/26/2014 1:35:00 AM Surr: o-Terphenyl 77.6 50-150 %REC 1 9/26/2014 1:35:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17010 Analyst: TK

Percent Moisture 17.2 wt% 1 9/25/2014 12:10:01 PM

Lab ID: 1409299-004 Collection Date: 9/24/2014 9:10:00 AM Client Sample ID: EX-20-20.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8846 Analyst: AK

Diesel (Fuel Oil) ND 21.2 mg/Kg-dry 1 9/26/2014 2:06:00 AM Heavy Oil ND 52.9 mg/Kg-dry 1 9/26/2014 2:06:00 AM Surr: 2-Fluorobiphenyl 92.1 50-150 %REC 1 9/26/2014 2:06:00 AM Surr: o-Terphenyl 80.4 50-150 %REC 1 9/26/2014 2:06:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17010 Analyst: TK

Percent Moisture 7.30 wt% 1 9/25/2014 12:10:01 PM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 5 of 10 Analytical Report

WO#: 1409299 Date Reported: 10/2/2014

CLIENT: GeoEngineers Project: 8th & Thomas

Lab ID: 1409299-005 Collection Date: 9/24/2014 10:30:00 AM Client Sample ID: EX-21-18.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8846 Analyst: AK

Diesel (Fuel Oil) ND 23.3 mg/Kg-dry 1 9/27/2014 10:33:00 AM Heavy Oil ND 58.3 mg/Kg-dry 1 9/27/2014 10:33:00 AM Surr: 2-Fluorobiphenyl 94.4 50-150 %REC 1 9/27/2014 10:33:00 AM Surr: o-Terphenyl 92.7 50-150 %REC 1 9/27/2014 10:33:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17010 Analyst: TK

Percent Moisture 14.6 wt% 1 9/25/2014 12:10:01 PM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 6 of 10 Date: 10/2/2014

Work Order: 1409299 QC SUMMARY REPORT CLIENT: GeoEngineers Project: 8th & Thomas Diesel and Heavy Oil by NWTPH-Dx/Dx Ext.

Sample ID: MB-8846 SampType: MBLK Units: mg/Kg Prep Date: 9/25/2014 RunNo: 17030 Client ID: MBLKS Batch ID: 8846 Analysis Date: 9/25/2014 SeqNo: 341270

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) ND 20.0 Heavy Oil ND 50.0 Surr: 2-Fluorobiphenyl 18.3 20.00 91.7 50 150 Surr: o-Terphenyl 14.4 20.00 71.9 50 150

Sample ID: LCS-8846 SampType: LCS Units: mg/Kg Prep Date: 9/25/2014 RunNo: 17030 Client ID: LCSS Batch ID: 8846 Analysis Date: 9/25/2014 SeqNo: 341414

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) 443 20.0 500.0 0 88.7 65 135 Surr: 2-Fluorobiphenyl 21.1 20.00 106 50 150 Surr: o-Terphenyl 17.4 20.00 86.8 50 150

Sample ID: 1409299-004ADUP SampType: DUP Units: mg/Kg-dry Prep Date: 9/25/2014 RunNo: 17030 Client ID: EX-20-20.0 Batch ID: 8846 Analysis Date: 9/26/2014 SeqNo: 342009

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) ND 21.4 0 30 Heavy Oil ND 53.5 0 30 Surr: 2-Fluorobiphenyl 19.8 21.40 92.4 50 150 0 Surr: o-Terphenyl 18.1 21.40 84.5 50 150 0

Sample ID: CCV-DX-8846C SampType: CCV Units: mg/Kg Prep Date: 9/26/2014 RunNo: 17030 Client ID: CCV Batch ID: 8846 Analysis Date: 9/26/2014 SeqNo: 342014

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) 445 20.0 500.0 0 89.1 80 120

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 7 of 10 Date: 10/2/2014

Work Order: 1409299 QC SUMMARY REPORT CLIENT: GeoEngineers Project: 8th & Thomas Diesel and Heavy Oil by NWTPH-Dx/Dx Ext.

Sample ID: CCV-DX-8846C SampType: CCV Units: mg/Kg Prep Date: 9/26/2014 RunNo: 17030 Client ID: CCV Batch ID: 8846 Analysis Date: 9/26/2014 SeqNo: 342014

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Surr: 2-Fluorobiphenyl 20.7 20.00 103 50 150 Surr: o-Terphenyl 17.9 20.00 89.4 50 150

Sample ID: CCV-OIL-8846C SampType: CCV Units: mg/Kg Prep Date: 9/26/2014 RunNo: 17030 Client ID: CCV Batch ID: 8846 Analysis Date: 9/26/2014 SeqNo: 342016

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Heavy Oil 1,060 50.0 1,000 0 106 80 120 Surr: 2-Fluorobiphenyl 18.1 20.00 90.6 50 150 Surr: o-Terphenyl 14.9 20.00 74.7 50 150

Sample ID: CCV-DX-8846D SampType: CCV Units: mg/Kg Prep Date: 9/27/2014 RunNo: 17030 Client ID: CCV Batch ID: R17030 Analysis Date: 9/27/2014 SeqNo: 343855

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) 426 20.0 500.0 0 85.3 80 120 Surr: 2-Fluorobiphenyl 22.0 20.00 110 50 150 Surr: o-Terphenyl 18.4 20.00 92.2 50 150

Sample ID: CCV-OIL-8846D SampType: CCV Units: mg/Kg Prep Date: 9/27/2014 RunNo: 17030 Client ID: CCV Batch ID: R17030 Analysis Date: 9/27/2014 SeqNo: 343856

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Heavy Oil 1,040 50.0 1,000 0 104 80 120 Surr: 2-Fluorobiphenyl 17.9 20.00 89.4 50 150 Surr: o-Terphenyl 17.8 20.00 88.9 50 150

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 8 of 10 Sample Log-In Check List

Client Name: GEI Work Order Number: 1409299 Logged by: Erica Silva Date Received: 9/24/2014 12:00:00 PM

Chain of Custody 1. Is Chain of Custody complete? Yes No Not Present 2. How was the sample delivered? Client

Log In 3. Coolers are present? Yes No NA Samples received straight from field 4. Shipping container/cooler in good condition? Yes No 5. Custody seals intact on shipping container/cooler? Yes No Not Required

6. Was an attempt made to cool the samples? Yes No NA

7. Were all coolers received at a temperature of >0°C to 10.0°C Yes No NA

8. Sample(s) in proper container(s)? Yes No 9. Sufficient sample volume for indicated test(s)? Yes No 10. Are samples properly preserved? Yes No 11. Was preservative added to bottles? Yes No NA

12. Is the headspace in the VOA vials? Yes No NA 13. Did all samples containers arrive in good condition(unbroken)? Yes No 14. Does paperwork match bottle labels? Yes No

15. Are matrices correctly identified on Chain of Custody? Yes No 16. Is it clear what analyses were requested? Yes No 17. Were all holding times able to be met? Yes No

Special Handling (if applicable) 18. Was client notified of all discrepancies with this order? Yes No NA

Person Notified: Date: By Whom: Via: eMail Phone Fax In Person Regarding: Client Instructions:

19. Additional remarks:

Item Information Item # Temp ºC Condition Sample 10.5

Page 1 of 1 Page 9 of 10 Page 10 of 10 3600 Fremont Ave. N. Seattle, WA 98103 T: (206) 352-3790 F: (206) 352-7178 [email protected] GeoEngineers Ian Young 600 Stewart Street, Suite 1700 Seattle, WA 98101

RE: 8th & Thomas Lab ID: 1409319

October 03, 2014

Attention Ian Young:

Fremont Analytical, Inc. received 11 sample(s) on 9/26/2014 for the analyses presented in the following report. Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Sample Moisture (Percent Moisture) This report consists of the following:

- Case Narrative - Analytical Results - Applicable Quality Control Summary Reports - Chain of Custody

All analyses were performed consistent with the Quality Assurance program of Fremont Analytical, Inc. Please contact the laboratory if you should have any questions about the results.

Thank you for using Fremont Analytical.

Sincerely,

Mike Ridgeway President

www.fremontanalytical.com

Page 1 of 13 Date: 10/03/2014

CLIENT: GeoEngineers Work Order Sample Summary Project: 8th & Thomas Lab Order: 1409319

Lab Sample ID Client Sample ID Date/Time Collected Date/Time Received 1409319-001 EX-24-16.0 09/25/2014 9:15 AM 09/26/2014 11:40 AM 1409319-002 EX-25-16.0 09/25/2014 9:20 AM 09/26/2014 11:40 AM 1409319-003 EX-26-16.0 09/25/2014 9:25 AM 09/26/2014 11:40 AM 1409319-004 EX-27-16.0 09/25/2014 9:30 AM 09/26/2014 11:40 AM 1409319-005 EX-28-20.0 09/25/2014 9:45 AM 09/26/2014 11:40 AM 1409319-006 EX-22-20.0 09/25/2014 9:50 AM 09/26/2014 11:40 AM 1409319-007 EX-23-24.0 09/25/2014 1:55 PM 09/26/2014 11:40 AM 1409319-008 EX-29-24.0 09/25/2014 2:00 PM 09/26/2014 11:40 AM 1409319-009 EX-30-24.0 09/25/2014 2:05 PM 09/26/2014 11:40 AM 1409319-010 EX-31-20.0 09/25/2014 2:15 PM 09/26/2014 11:40 AM 1409319-011 EX-32-24.0 09/25/2014 2:20 PM 09/26/2014 11:40 AM

Note: If no "Time Collected" is supplied, a default of 12:00AM is assigned

Page 2 of 13 Case Narrative WO#: 1409319 Date: 10/3/2014

CLIENT: GeoEngineers Project: 8th & Thomas

I. SAMPLE RECEIPT: Samples receipt information is recorded on the attached Sample Receipt Checklist.

II. GENERAL REPORTING COMMENTS: Results are reported on a wet weight basis unless dry-weight correction is denoted in the units field on the analytical report ("mg/kg-dry" or "ug/kg-dry").

The validity of the analytical procedures for which data is reported in this analytical report is determined by the Laboratory Control Sample (LCS) and the Method Blank (MB). The LCS and the MB are processed with the samples to ensure method criteria are achieved throughout the entire analytical process.

III. ANALYSES AND EXCEPTIONS: Exceptions associated with this report will be footnoted in the analytical results page(s) or the quality control summary page(s) and/or noted below.

Page 3 of 13 Analytical Report

WO#: 1409319 Date Reported: 10/3/2014

CLIENT: GeoEngineers Project: 8th & Thomas

Lab ID: 1409319-001 Collection Date: 9/25/2014 9:15:00 AM Client Sample ID: EX-24-16.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 21.6 mg/Kg-dry 1 9/27/2014 10:24:00 PM Heavy Oil ND 53.9 mg/Kg-dry 1 9/27/2014 10:24:00 PM Surr: 2-Fluorobiphenyl 91.0 50-150 %REC 1 9/27/2014 10:24:00 PM Surr: o-Terphenyl 83.2 50-150 %REC 1 9/27/2014 10:24:00 PM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 7.21 wt% 1 9/29/2014 8:07:17 AM

Lab ID: 1409319-002 Collection Date: 9/25/2014 9:20:00 AM Client Sample ID: EX-25-16.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 21.5 mg/Kg-dry 1 9/27/2014 11:26:00 PM Heavy Oil ND 53.7 mg/Kg-dry 1 9/27/2014 11:26:00 PM Surr: 2-Fluorobiphenyl 91.3 50-150 %REC 1 9/27/2014 11:26:00 PM Surr: o-Terphenyl 87.7 50-150 %REC 1 9/27/2014 11:26:00 PM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 11.9 wt% 1 9/29/2014 8:07:17 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 4 of 13 Analytical Report

WO#: 1409319 Date Reported: 10/3/2014

CLIENT: GeoEngineers Project: 8th & Thomas

Lab ID: 1409319-003 Collection Date: 9/25/2014 9:25:00 AM Client Sample ID: EX-26-16.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 20.1 mg/Kg-dry 1 9/27/2014 11:56:00 PM Heavy Oil ND 50.3 mg/Kg-dry 1 9/27/2014 11:56:00 PM Surr: 2-Fluorobiphenyl 91.2 50-150 %REC 1 9/27/2014 11:56:00 PM Surr: o-Terphenyl 78.7 50-150 %REC 1 9/27/2014 11:56:00 PM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 13.2 wt% 1 9/29/2014 8:07:17 AM

Lab ID: 1409319-004 Collection Date: 9/25/2014 9:30:00 AM Client Sample ID: EX-27-16.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 19.7 mg/Kg-dry 1 9/28/2014 12:27:00 AM Heavy Oil ND 49.2 mg/Kg-dry 1 9/28/2014 12:27:00 AM Surr: 2-Fluorobiphenyl 91.4 50-150 %REC 1 9/28/2014 12:27:00 AM Surr: o-Terphenyl 75.3 50-150 %REC 1 9/28/2014 12:27:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 14.0 wt% 1 9/29/2014 8:07:17 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 5 of 13 Analytical Report

WO#: 1409319 Date Reported: 10/3/2014

CLIENT: GeoEngineers Project: 8th & Thomas

Lab ID: 1409319-005 Collection Date: 9/25/2014 9:45:00 AM Client Sample ID: EX-28-20.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 21.1 mg/Kg-dry 1 9/28/2014 12:58:00 AM Heavy Oil ND 52.8 mg/Kg-dry 1 9/28/2014 12:58:00 AM Surr: 2-Fluorobiphenyl 90.8 50-150 %REC 1 9/28/2014 12:58:00 AM Surr: o-Terphenyl 81.8 50-150 %REC 1 9/28/2014 12:58:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 14.9 wt% 1 9/29/2014 8:07:17 AM

Lab ID: 1409319-006 Collection Date: 9/25/2014 9:50:00 AM Client Sample ID: EX-22-20.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 22.7 mg/Kg-dry 1 9/28/2014 1:29:00 AM Heavy Oil ND 56.7 mg/Kg-dry 1 9/28/2014 1:29:00 AM Surr: 2-Fluorobiphenyl 90.7 50-150 %REC 1 9/28/2014 1:29:00 AM Surr: o-Terphenyl 75.3 50-150 %REC 1 9/28/2014 1:29:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 12.2 wt% 1 9/29/2014 8:07:17 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 6 of 13 Analytical Report

WO#: 1409319 Date Reported: 10/3/2014

CLIENT: GeoEngineers Project: 8th & Thomas

Lab ID: 1409319-007 Collection Date: 9/25/2014 1:55:00 PM Client Sample ID: EX-23-24.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 20.2 mg/Kg-dry 1 9/28/2014 1:59:00 AM Heavy Oil ND 50.5 mg/Kg-dry 1 9/28/2014 1:59:00 AM Surr: 2-Fluorobiphenyl 90.6 50-150 %REC 1 9/28/2014 1:59:00 AM Surr: o-Terphenyl 77.0 50-150 %REC 1 9/28/2014 1:59:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 11.1 wt% 1 9/29/2014 8:07:17 AM

Lab ID: 1409319-008 Collection Date: 9/25/2014 2:00:00 PM Client Sample ID: EX-29-24.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 18.7 mg/Kg-dry 1 9/28/2014 2:30:00 AM Heavy Oil ND 46.8 mg/Kg-dry 1 9/28/2014 2:30:00 AM Surr: 2-Fluorobiphenyl 91.1 50-150 %REC 1 9/28/2014 2:30:00 AM Surr: o-Terphenyl 78.9 50-150 %REC 1 9/28/2014 2:30:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 9.53 wt% 1 9/29/2014 8:07:17 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 7 of 13 Analytical Report

WO#: 1409319 Date Reported: 10/3/2014

CLIENT: GeoEngineers Project: 8th & Thomas

Lab ID: 1409319-009 Collection Date: 9/25/2014 2:05:00 PM Client Sample ID: EX-30-24.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 21.3 mg/Kg-dry 1 9/28/2014 3:01:00 AM Heavy Oil ND 53.3 mg/Kg-dry 1 9/28/2014 3:01:00 AM Surr: 2-Fluorobiphenyl 90.8 50-150 %REC 1 9/28/2014 3:01:00 AM Surr: o-Terphenyl 83.1 50-150 %REC 1 9/28/2014 3:01:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 12.1 wt% 1 9/29/2014 8:07:17 AM

Lab ID: 1409319-010 Collection Date: 9/25/2014 2:15:00 PM Client Sample ID: EX-31-20.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 21.7 mg/Kg-dry 1 9/28/2014 3:32:00 AM Heavy Oil ND 54.3 mg/Kg-dry 1 9/28/2014 3:32:00 AM Surr: 2-Fluorobiphenyl 91.1 50-150 %REC 1 9/28/2014 3:32:00 AM Surr: o-Terphenyl 78.7 50-150 %REC 1 9/28/2014 3:32:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 8.69 wt% 1 9/29/2014 8:07:17 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 8 of 13 Analytical Report

WO#: 1409319 Date Reported: 10/3/2014

CLIENT: GeoEngineers Project: 8th & Thomas

Lab ID: 1409319-011 Collection Date: 9/25/2014 2:20:00 PM Client Sample ID: EX-32-24.0 Matrix: Soil Analyses Result RL Qual Units DF Date Analyzed

Diesel and Heavy Oil by NWTPH-Dx/Dx Ext. Batch ID: 8865 Analyst: EC

Diesel (Fuel Oil) ND 19.3 mg/Kg-dry 1 9/28/2014 4:02:00 AM Heavy Oil ND 48.3 mg/Kg-dry 1 9/28/2014 4:02:00 AM Surr: 2-Fluorobiphenyl 90.4 50-150 %REC 1 9/28/2014 4:02:00 AM Surr: o-Terphenyl 89.2 50-150 %REC 1 9/28/2014 4:02:00 AM

Sample Moisture (Percent Moisture) Batch ID: R17068 Analyst: KZ

Percent Moisture 12.2 wt% 1 9/29/2014 8:07:17 AM

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range HHolding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 9 of 13 Date: 10/3/2014

Work Order: 1409319 QC SUMMARY REPORT CLIENT: GeoEngineers Project: 8th & Thomas Diesel and Heavy Oil by NWTPH-Dx/Dx Ext.

Sample ID: 1409319-011ADUP SampType: DUP Units: mg/Kg-dry Prep Date: 9/26/2014 RunNo: 17079 Client ID: EX-32-24.0 Batch ID: 8865 Analysis Date: 9/28/2014 SeqNo: 342145

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) ND 20.7 0 30 Heavy Oil ND 51.6 0 30 Surr: 2-Fluorobiphenyl 18.8 20.65 91.0 50 150 0 Surr: o-Terphenyl 17.1 20.65 83.0 50 150 0

Sample ID: LCS-8865 SampType: LCS Units: mg/Kg Prep Date: 9/26/2014 RunNo: 17079 Client ID: LCSS Batch ID: 8865 Analysis Date: 9/27/2014 SeqNo: 342161

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) 415 20.0 500.0 0 83.0 65 135 Surr: 2-Fluorobiphenyl 20.2 20.00 101 50 150 Surr: o-Terphenyl 17.7 20.00 88.6 50 150

Sample ID: MB-8865 SampType: MBLK Units: mg/Kg Prep Date: 9/26/2014 RunNo: 17079 Client ID: MBLKS Batch ID: 8865 Analysis Date: 9/27/2014 SeqNo: 342162

Analyte Result RL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual

Diesel (Fuel Oil) ND 20.0 Heavy Oil ND 50.0 Surr: 2-Fluorobiphenyl 20.0 20.00 99.8 50 150 Surr: o-Terphenyl 16.4 20.00 81.8 50 150

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits Page 10 of 13 Sample Log-In Check List

Client Name: GEI Work Order Number: 1409319 Logged by: Erica Silva Date Received: 9/26/2014 11:40:00 AM

Chain of Custody 1. Is Chain of Custody complete? Yes No Not Present 2. How was the sample delivered? Client

Log In 3. Coolers are present? Yes No NA

4. Shipping container/cooler in good condition? Yes No 5. Custody seals intact on shipping container/cooler? Yes No Not Required

6. Was an attempt made to cool the samples? Yes No NA

7. Were all coolers received at a temperature of >0°C to 10.0°C Yes No NA

8. Sample(s) in proper container(s)? Yes No 9. Sufficient sample volume for indicated test(s)? Yes No 10. Are samples properly preserved? Yes No 11. Was preservative added to bottles? Yes No NA

12. Is the headspace in the VOA vials? Yes No NA 13. Did all samples containers arrive in good condition(unbroken)? Yes No 14. Does paperwork match bottle labels? Yes No

15. Are matrices correctly identified on Chain of Custody? Yes No 16. Is it clear what analyses were requested? Yes No 17. Were all holding times able to be met? Yes No

Special Handling (if applicable) 18. Was client notified of all discrepancies with this order? Yes No NA

Person Notified: Date: By Whom: Via: eMail Phone Fax In Person Regarding: Client Instructions:

19. Additional remarks:

Item Information Item # Temp ºC Condition Cooler 5.6 Good Sample 1.8 Good

Page 1 of 1 Page 11 of 13 Page 12 of 13 Page 13 of 13

APPENDIX F Report Limitations and Guidelines for Use

APPENDIX F REPORT LIMITATIONS AND GUIDELINES FOR USE

This appendix provides information to help you manage your risks with respect to the use of this report.

Environmental Services Are Performed for Specific Purposes, Persons and Projects GeoEngineers has completed this UST Removal and Cleanup Action Report for the 8th and Thomas JV, LLC Property located in Seattle, Washington in general accordance with our Proposal dated August 8, 2014. This report has been prepared for the exclusive use of 8th and Thomas JV, LLC and, its authorized agents and regulatory agencies. This report is not intended for use by others, and the information contained herein is not applicable to other properties.

GeoEngineers structures our services to meet the specific needs of our clients. For example, an environmental study conducted for a property owner may not fulfill the needs of a prospective purchaser of the same property. Because each environmental study is unique, each environmental report is unique, prepared solely for the specific client and property. No one except 8th and Thomas JV, LLC and its authorized agents and regulatory agencies should rely on this environmental report without first conferring with GeoEngineers. Use of this report is not recommended for any purpose or project except the one originally contemplated.

This Environmental Report is Based on a Unique Set of Project-Specific Factors This report has been prepared for the 8th and Thomas property (Property) located in Seattle, Washington. GeoEngineers considered a number of unique, project-specific factors when establishing the scope of services for this project and report. Unless GeoEngineers specifically indicates otherwise, it is important not to rely on this report if it was:

■ not prepared for you, ■ not prepared for your project, ■ not prepared for the specific site explored, or ■ completed before important project changes were made.

If important changes are made to the project or property after the date of this report, we recommend that GeoEngineers be given the opportunity to review our interpretations and recommendations. Based on that review, we can provide written modifications or confirmation, as appropriate.

Reliance Conditions for Third Parties Our report was prepared for the exclusive use of our Client. No other party may rely on the product of our services unless we agree to such reliance in advance and in writing. This is to provide our firm with reasonable protection against open-ended liability claims by third parties with whom there would otherwise be no contractual limits to their actions. Within the limitations of scope, schedule and budget, our services have been executed in accordance with our Agreement with the Client and generally accepted environmental practices in this area at the time this report was prepared.

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Historical Information Provided By Others GeoEngineers makes no warranties or guarantees regarding the accuracy or completeness of information provided by others. The information presented in this report is based on the above-described research. GeoEngineers has relied upon information provided by others in our descriptions of historical conditions and in our review of regulatory databases and files. The available data do not provide definitive information with regard to all past uses, operations or incidents at the property or adjacent properties.

Uncertainty May Remain Even After This Study is Completed No study can wholly eliminate uncertainty regarding the potential for environmental conditions or contamination in connection with a property. There is always a potential that areas with contamination that were not identified during this study exist at the site or in the project area. Our interpretation of subsurface conditions in this study is based on field observations and chemical analytical data from widely-spaced sampling locations. It is always possible that contamination exists in areas that were not explored, sampled or analyzed.

Environmental Regulations Are Always Evolving Some substances may be present in the vicinity of the Property in quantities or under conditions that may have led, or may lead, to contamination of the Property, but are not included in current local, state or federal regulatory definitions of hazardous substances or do not otherwise present current potential liability. GeoEngineers cannot be responsible if the standards for appropriate inquiry, or regulatory definitions of hazardous substances, change or if more stringent environmental standards are developed in the future.

Subsurface Conditions Can Change This environmental report is based on conditions that existed at the time the study was performed. The findings and conclusions of this report may be affected by the passage of time, by man-made events such as construction on or adjacent to the Property, by new releases of hazardous substances, or by natural events such as floods, earthquakes, slope instability or groundwater fluctuations. Please contact GeoEngineers before applying this report for its intended purpose so that GeoEngineers may evaluate whether changed conditions affect the continued applicability of the report.

Soil and Groundwater End Use The cleanup levels referenced in this report are site- and situation-specific. The cleanup levels may not be applicable for other properties or for other on-site uses of the affected soil and/or groundwater. Note that hazardous substances may be present in some of the on-site soil and/or groundwater at detectable concentrations that are less than the referenced cleanup levels. GeoEngineers should be contacted prior to the export of soil or groundwater from the subject property or reuse of the affected soil or groundwater on-site to evaluate the potential for associated environmental liabilities. We are unable to assume responsibility for potential environmental liability arising out of the transfer of soil and/or groundwater from the Property to another location or its reuse on-site in instances that we did not know or could not control.

Most Environmental Findings Are Professional Opinions Our interpretations of subsurface conditions are based on field observations and chemical analytical data from widely spaced sampling locations at the Property. Site exploration identifies subsurface conditions only at those points where subsurface tests are conducted or samples are taken. GeoEngineers reviewed

October 31, 2014| Page F-2 File No. 20341-001-03

field and laboratory data and then applied our professional judgment to render an informed opinion about subsurface conditions throughout the Property. Actual subsurface conditions may differ, sometimes significantly, from those indicated in this report. Our report, conclusions and interpretations should not be construed as a warranty of the subsurface conditions.

An Environmental Report Could be Subject to Misinterpretation Misinterpretation of this plan by other design team members can result in costly problems. You could lower that risk by having GeoEngineers confer with appropriate members of the design team after submitting the plan. Also retain GeoEngineers to review pertinent elements of the design team's plans and specifications. Contractors can also misinterpret an environmental plan. Reduce that risk by having GeoEngineers participate in pre-bid and preconstruction conferences, and by providing construction observation.

Biological Pollutants GeoEngineers’ Scope of Work specifically excludes the investigation, detection, prevention or assessment of the presence of Biological Pollutants. Accordingly, this report does not include any interpretations, recommendations, findings or conclusions regarding the detecting, assessing, preventing or abating of Biological Pollutants, and no conclusions or inferences should be drawn regarding Biological Pollutants as they may relate to this project. The term “Biological Pollutants” includes, but is not limited to, molds, fungi, spores, bacteria and viruses, and/or any of their byproducts.

A Client that desires these specialized services is advised to obtain them from a consultant who offers services in this specialized field.

Read These Provisions Closely It is important to recognize that the geoscience practices (geotechnical engineering, geology and environmental science) are less exact than other engineering and natural science disciplines. Without this understanding, there may be expectations that could lead to disappointments, claims and disputes. GeoEngineers includes these explanatory “limitations” provisions in our reports to help reduce such risks. Please confer with GeoEngineers if you need to know more about how these “Report Limitations and Guidelines for Use” apply to your project or property.

October 31, 2014| Page F-3 20341-001-03 Have we delivered World Class Client Service? Please let us know by visiting www.geoengineers.com/feedback.