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HomeMy WebLinkAboutResolution_DOE Covenant_Lower Co ShopKITTITAS COUNTY DEPARTMENT OF PUBLIC WORKS 2022 AGENDA STAFF REPORT AGENDA DATE: February 15, 2022 ACTION REQUESTED: Request to Approve a Resolution Authorizing Chair Signature on the Washington State Department of Ecology Restrictive Covenant at the Lower County Public Works Maintenance Shop BACKGROUND: Groundwater monitoring for petroleum hydrocarbon contamination at Lower County Public Works Maintenance Shop concluded in 2021. It is now time to record the requested restrictive covenant on the property. The soil cleanup will take place once the existing shop is ready for demolition. INTERACTION: Public Works. RECOMMENDATION: Authorize the Chair’s signature on the restrictive covenant requested by the Washington State Department of Ecology. HANDLING: Return one original to Public Works. ATTACHMENTS: Resolution; Restrictive Covenant. LEAD STAFF: Mark R. Cook, Director. BOARD OF COUNTY COMMISSIONERS COUNTY OF KITTITAS STATE OF WASHINGTON R E S O L U T I O N NO. ___________ AUTHORIZING CHAIR SIGNATURE ON WASHINGTON STATE DEPARTMENT OF ECOLOGY ENVIRONMENTAL RESTRICTIVE COVENANT ON TAX PARCEL NO. 763133 LOWER COUNTY PUBLIC WORKS MAINTENANCE SHOP WHEREAS: Kittitas County Public Works conducted a Phase II environmental assessment of the Lower County Maintenance Shop property in July 2013; and WHEREAS: The environmental assessment identified the presence of petroleum impacted soils on a portion of the site; and WHEREAS: In 2016 Public Works voluntarily authorized groundwater monitoring at the Lower County shop and said monitoring continued until 2021; and WHEREAS: Groundwater monitoring results affirm no additional monitoring is required and it is now time to address site contaminated soils; and WHEREAS: Washington State Department of Ecology allows the recording of a restrictive environmental covenant on the property until such time that the contaminated soil can be removed from the site; NOW, THEREFORE BE IT RESOLVED: The Board of County Commissioners, after due consideration, does hereby authorize the Chair’s signature on an environmental restrictive covenant on Tax Parcel Number 763133. DATED this 15th day of February 2022, at Ellensburg, Washington. BOARD OF COUNTY COMMISSIONERS KITTITAS COUNTY, WASHINGTON ________________________________ Laura Osiadacz, Chairman Attest: ☐ Clerk of the Board- Julie Kjorsvik ______________________________ Cory Wright, Vice-Chairman ☐ Deputy Clerk of the Board- Mandy Buchholz _______________________________ _______________________________ Brett Wachsmith, Commissioner After Recording Return Original Signed Covenant to: Mr. Jeff Newschwander Toxics Cleanup Program Department of Ecology, Central Region 1250 West Alder Street Union Gap, WA 98903 Environmental Covenant Grantor: Kittitas County, WA Grantee: State of Washington, Department of Ecology (hereafter “Ecology”) Brief Legal Description: Tract 4 Lots 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16, Block 21, TACOMA ADDITION TO THE CITY OF ELLENSBURG, in the County of Kittitas, State of Washington, as per plat thereof recorded in Book 1 of Plats, page 57 records of said County. Tax Parcel Nos.: 763133 Cross Reference: Kittitas County Lower Shop, 505 West 14th Ave, Ellensburg, WA 98926 File No. 0504-119-00 RECITALS 1 a. This document is an environmental (restrictive) covenant (hereafter “Covenant”) executed pursuant to the Model Toxics Control Act (“MTCA”), chapter 70.105D RCW, and Uniform Environmental Covenants Act (“UECA”), chapter 64.70 RCW. b. The Property that is the subject of this Covenant is part or all of a site commonly known as Kittitas County Lower Shop (ID Number 0504-119-00). The Property is legally described in Exhibit A, and illustrated in Exhibit B, both of which are attached (hereafter “Property”). If there are differences between these two Exhibits, the legal description in Exhibit A shall prevail. c. The Property is the subject of remedial action conducted under MTCA. This Covenant is required because residual contamination remains on the Property after completion of remedial actions. Specifically, the following principal contaminants remain on the Property: Medium Principal Contaminants Present Soil Petroleum hu from an abandoned onsite fuel tank d. It is the purpose of this Covenant to restrict certain activities and uses of the Property to protect human health and the environment and the integrity of remedial actions conducted at the site. Records describing the extent of residual contamination and remedial actions conducted are available through Ecology. Voluntary monitoring reports conducted by GEOENGINEERS are attached as EXHIBIT E to this document. e. This Covenant grants Ecology certain rights under UECA and as specified in this Covenant. As a Holder of this Covenant under UECA, Ecology has an interest in real property, however, this is not an ownership interest which equates to liability under MTCA or the Comprehensive Environmental Response, Compensation, and Liability Act, 42 U.S.C. § 9601 et seq. The rights of Ecology as an “agency” under UECA, other than its’ right as a holder, are not an interest in real property. COVENANT Kittitas County, WA, as Grantor and fee simple owner of the Property hereby grants to the Washington State Department of Ecology, and its successors and assignees, the following covenants. Furthermore, it is the intent of the Grantor that such covenants shall supersede any prior interests the GRANTOR has in the property and run with the land and be binding on all current and future owners of any portion of, or interest in, the Property. Section 1. General Restrictions and Requirements. The following general restrictions and requirements shall apply to the Property: a. Interference with Remedial Action. The Grantor shall not engage in any activity on the Property that may impact or interfere with the remedial action and any operation, maintenance, inspection or monitoring of that remedial action without prior written approval from Ecology. b. Protection of Human Health and the Environment. The Grantor shall not engage in any activity on the Property that may threaten continued protection of human health or the environment without prior written approval from Ecology. This includes, but is not limited to, any activity that results in the release of residual contamination that was contained as a part of the remedial action or that exacerbates or creates a new exposure to residual contamination remaining on the Property. c. Continued Compliance Required. Grantor shall not convey any interest in any portion of the Property without providing for the continued adequate and complete operation, maintenance and monitoring of remedial actions and continued compliance with this Covenant. d. Leases. Grantor shall restrict any lease for any portion of the Property to uses and activities consistent with this Covenant and notify all lessees of the restrictions on the use of the Property. e. Preservation of Reference Monuments. Grantor shall make a good faith effort to preserve any reference monuments and boundary markers used to define the areal extent of coverage of this Covenant. Should a monument or marker be damaged or destroyed, Grantor shall have it replaced by a licensed professional surveyor within 30 days of discovery of the damage or destruction. Section 2. Specific Prohibitions and Requirements. In addition to the general restrictions in Section 1 of this Covenant, the following additional specific restrictions and requirements shall apply to the Property. b. Containment of soil/waste materials. Section 3. Access. a. The Grantor shall maintain clear access to all remedial action components necessary to construct, operate, inspect, monitor and maintain the remedial action. b. The Grantor freely and voluntarily grants Ecology and its authorized representatives, upon reasonable notice, the right to enter the Property at reasonable times to evaluate the effectiveness of this Covenant and associated remedial actions, and enforce compliance with this Covenant and those actions, including the right to take samples, inspect any remedial actions conducted on the Property, and to inspect related records. c. No right of access or use by a third party to any portion of the Property is conveyed by this instrument. Section 4. Notice Requirements. a. Conveyance of Any Interest. The Grantor, when conveying any interest to Kittitas County tax parcel number 763133, including but not limited to title, easement, leases, and security or other interests, must: i. Provide written notice to Ecology of the intended conveyance at least thirty (30) days in advance of the conveyance. ii. Include in the conveying document a notice in substantially the following form, as well as a complete copy of this Covenant: NOTICE: THIS PROPERTY IS SUBJECT TO AN ENVIRONMENTAL COVENANT GRANTED TO THE WASHINGTON STATE DEPARTMENT OF ECOLOGY ON FEBRUARY 15, 2022 AND RECORDED WITH THE KITTITAS COUNTY AUDITOR UNDER RECORDING NUMBER _______________. USES AND ACTIVITIES ON THIS PROPERTY MUST COMPLY WITH THAT COVENANT, A COMPLETE COPY OF WHICH IS ATTACHED TO THIS DOCUMENT. iii. Unless otherwise agreed to in writing by Ecology, provide Ecology with a complete copy of the executed document within thirty (30) days of the date of execution of such document. b. Reporting Violations. Should the Grantor become aware of any violation of this Covenant, Grantor shall promptly report such violation in writing to Ecology. c. Emergencies. For any emergency or significant change in site conditions due to Acts of Nature (for example, flood or fire) resulting in a violation of this Covenant, the Grantor is authorized to respond to such an event in accordance with state and federal law. The Grantor must notify Ecology in writing of the event and response actions planned or taken as soon as practical but no later than within 24 hours of the discovery of the event. d. Notification procedure. Any required written notice, approval, reporting or other communication shall be personally delivered or sent by first class mail to the following persons. Any change in this contact information shall be submitted in writing to all parties to this Covenant. Upon mutual agreement of the parties to this Covenant, an alternative to personal delivery or first class mail, such as e-mail or other electronic means, may be used for these communications. Kittitas County Board of Commissioners 205 W 5th AVE STE 108 Ellensburg WA 98926-2887 509-962-7508 509-962-7679 fax bocc@co.kittitas.wa.us Environmental Covenants Coordinator Washington State Department of Ecology Toxics Cleanup Program P.O. Box 47600 Olympia, WA 98504 – 7600 (360) 407-6000 ToxicsCleanupProgramHQ@ecy.wa.gov Section 5. Modification or Termination. a. Grantor must provide written notice and obtain approval from Ecology at least sixty (60) days in advance of any proposed activity or use of the Property in a manner that is inconsistent with this Covenant. For any proposal that is inconsistent with this Covenant and permanently modifies an activity or use restriction at the site: i. Ecology must issue a public notice and provide an opportunity for the public to comment on the proposal; and ii. If Ecology approves of the proposal, the Covenant must be amended to reflect the change before the activity or use can proceed. b. If the conditions at the site requiring a Covenant have changed or no longer exist, then the Grantor may submit a request to Ecology that this Covenant be amended or terminated. Any amendment or termination of this Covenant must follow the procedures in MTCA and UECA and any rules promulgated under these chapters. Section 6. Enforcement and Construction. a. This Covenant is being freely and voluntarily granted by the Grantor. b. Within ten (10) days of execution of this Covenant, Grantor shall provide Ecology with an original signed Covenant and proof of recording and a copy of the Covenant and proof of recording to others required by RCW 64.70.070. c. Ecology shall be entitled to enforce the terms of this Covenant by resort to specific performance or legal process. All remedies available in this Covenant shall be in addition to any and all remedies at law or in equity, including MTCA and UECA. Enforcement of the terms of this Covenant shall be at the discretion of Ecology, and any forbearance, delay or omission to exercise its rights under this Covenant in the event of a breach of any term of this Covenant is not a waiver by Ecology of that term or of any subsequent breach of that term, or any other term in this Covenant, or of any rights of Ecology under this Covenant. d. The Grantor shall be responsible for all costs associated with implementation of this Covenant. Furthermore, the Grantor, upon request by Ecology, shall be obligated to pay for Ecology’s costs to process a request for any modification or termination of this Covenant and any approval required by this Covenant. e. This Covenant shall be liberally construed to meet the intent of MTCA and UECA. f. The provisions of this Covenant shall be severable. If any provision in this Covenant or its application to any person or circumstance is held invalid, the remainder of this Covenant or its application to any person or circumstance is not affected and shall continue in full force and effect as though such void provision had not been contained herein. g. A heading used at the beginning of any section or paragraph or exhibit of this Covenant may be used to aid in the interpretation of that section or paragraph or exhibit but does not override the specific requirements in that section or paragraph. The undersigned Grantor warrants he/she holds the title to Kittitas County tax parcel number 763133, and has authority to execute this Covenant. EXECUTED this ______ day of __________________, 20___. _______________________ by: Laura Osiadacz Title: Chairman, Kittitas County Board of County Commissioners REPRESENTATIVE ACKNOWLEDGEMENT STATE OF COUNTY OF On this day of , 20__, I certify that personally appeared before me, acknowledged that he/she signed this instrument, on oath stated that he/she was authorized to execute this instrument, and acknowledged it as the _________________________ Chairman of the Kittitas County Board of County Commissioners to be the free and voluntary act and deed of such party for the uses and purposes mentioned in the instrument. __________________________________________ Notary Public in and for the State of Washington Residing at ________________________________ My appointment expires _____________________ The Department of Ecology, hereby accepts the status as GRANTEE and HOLDER of the above Environmental Covenant. STATE OF WASHINGTON DEPARTMENT OF ECOLOGY ______________________ by: ___________________ Title: ______________________________ Dated: _____________________________ STATE ACKNOWLEDGMENT STATE OF COUNTY OF On this day of , 20__, I certify that ___________________________ personally appeared before me, acknowledged that he/she is the of the state agency that executed the within and foregoing instrument, and signed said instrument by free and voluntary act and deed, for the uses and purposes therein mentioned, and on oath stated that he/she was authorized to execute said instrument for said state agency. __________________________________________ Notary Public in and for the State of Washington Residing at ________________________________ My appointment expires ______________________ Exhibit A LEGAL DESCRIPTION Tract 4 Lots 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16, Block 21, TACOMA ADDITION TO THE CITY OF ELLENSBURG, in the County of Kittitas, State of Washington, as per plat thereof recorded in Book 1 of Plats, page 57 records of said County. Exhibit B PROPERTY MAP Exhibit C MAP ILLUSTRATING LOCATION OF RESTRICTIONS Notes: 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. 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 this communication. 3.GRPH = Gasoline-range petroleum hydrocarbons; µg/L = micrograms per liter Data Source: Aerial image from ESRI Data Online. Legend @<Previous Boring Numberand Approximate Location @ÑBoring Number andApproximate Location Inferred Ground Elevation Contours (feet)January 29, 2019 Inferred GroundwaterFlow Direction Former UST Approximate Location(Terragraphics 2013) Existing Monitoring WellsApproximate LocationMonitoring Wells Installed byGeoEngineers (March 2017)Approximate Location P:\0\0504119\GIS\MXDs\050411900_F02_GW_Jan2019.mxd Date Exported: 02/25/19 by maugust @< @< @< @Ñ@Ñ @Ñ @Ñ @Ñ@Ñ@Ñ W 15th Ave N Okanogan StIDWStorage MW-21573.38 1571 1 5 7 3 1572 1570 ! MW-31,573.16 MW-11,573.84 MW-41,572.29 MW-51,569.84 MW-61,571.49 B-1 B-2 B-3 B-4 B-5 B-6 B-7 BH-24 BH-25 BH-26 Projection: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet Site Plan and January 2019 Groundwater Elevations Kittitas County Lower Shop505 West 14th AvenueEllensburg, Washington Figure 2 µ 60 0 60 Feet GRPH (µg/L) MW-1 <150 MW-2 <150 MW-3 <150 MW-4 <150 MW-5 <150 MW-6 <150 Chemical Analytical Results Well ID Exhibit D VICINITY MAP µ SITE Vicinity Map Figure 1 Kittitas County Lower Shop505 West 14th AvenueEllensburg, Washington 2,000 2,0000 Feet Data Source: Mapbox Open Street Map, 2016 Notes: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. 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 this communication. Projection: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet P:\0\0504119\GIS\MXDs\050411900_F01_VM.mxd Date Exported: 10/25/16 by ccabrera Exhibit E GEOENGINEERS MONITORING REPORTS Data Gap Investigation Model Remedy Lust Sites Kittitas County Lower Shop 505 West 14th Avenue Ellensburg, Washington for Washington State Department of Ecology December 29, 2016 Data Gap Investigation Model Remedy LUST Sites Kittitas County Lower Shop 505 West 14th Avenue Ellensburg, Washington for Washington State Department of Ecology December 29, 2016 523 East Second Avenue Spokane, Washington 99202 509.363.3125 Data Gap Investigation Model Remedy LUST Sites Kittitas County Lower Shop 505 West 14th Avenue Ellensburg, Washington File No. 0504-119-00 December 29, 2016 Prepared for: Washington State Department of Ecology Toxics Cleanup Program - Central Region Office 1250 West Alder Street Union Gap, Washington 98903 Attention: Jeff Newschwander Prepared by: GeoEngineers, Inc. 523 East Second Avenue Spokane, Washington 99202 509.363.3125 Andrew P. Provant Senior Geologist Bruce D. Williams Principal APP:SHL:BDW:tjh H. Lathen, Environmental Engineer Disclaimer: Any electronic form, facsimile or hard copy ofthe original document (email, text, table, and/orfigure), if provided, and any attachments are only a copy ofthe original document. The original document is stored by GeoEngineers, Inc. and will serve as the official document of record. GEOENGINEER� December 29, 2016 | Page i File No. 0504-119-00 Table of Contents 1.0 INTRODUCTION ............................................................................................................................................... 1 2.0 SITE DESCRIPTION AND BACKGROUND ....................................................................................................... 1 3.0 SCOPE OF SERVICES ...................................................................................................................................... 1 4.0 FIELD ACTIVITIES ............................................................................................................................................ 2 4.1. General ........................................................................................................................................................ 2 4.2. Subsurface Conditions ............................................................................................................................... 3 4.3. Field Screening and Sampling ................................................................................................................... 3 5.0 CHEMICAL ANALYTICAL RESULTS ................................................................................................................. 3 5.1. Soil Chemical Analytical Results ................................................................................................................ 3 6.0 SUMMARY, CONCLUSIONS AND RECOMMENDATIONS ............................................................................... 5 7.0 LIMITATIONS ................................................................................................................................................... 7 LIST OF FIGURES Figure 1. Vicinity Map Figure 2. Site Plan APPENDICES Appendix A. Field Procedures and Boring Logs Figure A-1 – Key to Exploration Logs Figures A-2 through A-4 – Logs of Borings Appendix B. Chemical Analytical Laboratory Reports Appendix C. Report Limitations and Guidelines for Use December 29, 2016 | Page 1 File No. 0504-119-00 1.0 INTRODUCTION This report describes soil and groundwater assessment activities conducted at the Kittitas County Lower Shop site located at 505 West 14th Avenue in Ellensburg, Washington (herein referred to as “site”). The approximate site location is shown in the attached Vicinity Map, Figure 1. Site environmental activities are managed by the Washington State Department of Ecology (Ecology). This report describes field activities, observations and chemical analytical results associated with soil and groundwater samples collected at the site. The purpose of the assessment activities described herein was to identify if remnant soil and groundwater contamination associated with former underground storage tank (UST) operation was present beneath the site. Ecology will use the assessment results to conduct a Site Hazard Assessment (SHA), if necessary, or close the site. 2.0 SITE DESCRIPTION AND BACKGROUND The county shop is located in a residential area of Ellensburg, Washington. The approximate site location is shown in the Vicinity Map, Figure 1. The site is bounded by 15th Avenue to the north, 14th Avenue to the south, residential property to the west and Okanogan Street to the east. Four maintenance or shop buildings and a yard are located on the unpaved site. In May 1990, Kittitas County removed three USTs from the site just north of the office building. Evidence of a petroleum release was not recorded during UST removal actions; however, analytical testing was not performed. TerraGraphics completed a Phase II environmental site assessment in July 2013, and encountered petroleum-impacted soil near the former UST basin in three borings. The approximate locations of the former USTs and borings are shown in the Site Plan, Figure 2. The soil samples collected at about 5 feet below ground surface (bgs) from the three 2013 borings exceeded the Model Toxics Control Act (MTCA) Method A cleanup levels for gasoline-range petroleum hydrocarbons (GRPH), total xylenes, ethylbenzene, and naphthalene. 3.0 SCOPE OF SERVICES The scope of services included the following: 1. Prepared a Master Work Plan that included a Sampling and Analysis Plan (SAP), Quality Assurance Project Plan (QAPP), and Health and Safety Plan (HASP). 2. Coordinated underground utility locating using the one-call system and Utilities Plus, a private utility locator. Per state regulations, the proposed boring locations were marked prior to initiating the locate request. 3. Coordinated subcontractors (drillers, locators and waste disposal contractors) and provided project management services. 4. Conducted field assessment activities including the following: a. Observing Environmental West Explorations, Inc. (Environmental West) drill seven soil borings (B-1 through B-7) using direct-push drilling techniques. Temporary well screens December 29, 2016 | Page 2 File No. 0504-119-00 were set in four of the borings to collect groundwater samples. Continuous soil samples were collected using 4-foot-long acrylic slip-sleeve samplers. b. Collecting four groundwater samples from borings B-1 through B-3, and B-5. c. Observing and documenting subsurface soil conditions. At least one soil sample was retained from each slip-sleeve sampler for field screening and potential chemical analysis. Field screening consisted of photo-ionization detector (PID) screening, visual observation and water-sheen testing. d. Drumming and labeling investigation-derived waste (IDW). 5. Submitting one soil sample from each boring to TestAmerica Laboratories, Inc. (TestAmerica) for chemical analysis. The soil sample with the greatest field screening indication of potential contamination or the sample collected from the bottom of the boring was submitted for chemical analysis. Soil samples were submitted for analysis of benzene, toluene, ethylbenzene, total xylenes and naphthalene (BTEXN) using EPA Method 8260C; GRPH using Northwest Method NWTPH-Gx, and diesel- and oil-range petroleum hydrocarbons (DRPH and ORPH, respectively) using Northwest Method NWTPH-Dx. 6. Submitting four groundwater samples for BTEXN, GRPH, DRPH and ORPH analysis using the methods listed above. 7. Entering analytical data into Ecology’s Environmental Information Management (EIM) database. 8. Preparing this assessment report. 4.0 FIELD ACTIVITIES 4.1. General Field assessment activities were conducted on December 2, 2016. Site utilities, located near the boring locations, were identified and marked by Utilities Plus prior to drilling. Environmental West advanced seven borings (B-1 through B-7) near and within the former UST excavation using direct-push drilling methods. The direct-push boring locations are summarized by the following: ■ Soil boring B-1 was drilled at the northwestern corner of the former UST excavation to 10½ feet bgs before meeting refusal. Three soil samples for potential chemical analysis were collected from the 2-, 4½- and 9-foot-depth intervals for potential chemical analysis. Groundwater was encountered at about 8 feet bgs. A temporary well screen was set between 7½ and 9½ feet bgs, and a groundwater sample was collected. ■ Soil boring B-2 was drilled approximately 8 feet north of the former UST excavation. B-2 was advanced to a depth of 9 feet bgs before meeting refusal. Soil samples were collected at the 2-, 4½- and 8-foot- depth intervals for potential chemical analysis. Groundwater was encountered at about 4½ feet bgs. A temporary well screen was set between 4 and 6 feet bgs, and a groundwater sample was collected. ■ Soil boring B-3 was drilled approximately 25 feet north of the former UST excavation. B-3 was advanced to a depth of 8½ feet bgs before meeting refusal. Soil samples were obtained at the 3½-, 6½- and 8-foot-depth intervals for potential chemical analysis. Groundwater was encountered at about 8 feet December 29, 2016 | Page 3 File No. 0504-119-00 bgs. A temporary well screen was set between 6½ and 8½ feet bgs, and a groundwater sample was collected. ■ Soil boring B-4 was drilled approximately 25 feet northwest of the former UST excavation. B-4 was advanced to a depth of 8½ feet bgs before meeting refusal, and soil samples collected at the 3- and 6-foot-depth intervals for potential chemical analysis. Groundwater was not encountered. ■ Soil boring B-5 was drilled approximately 10 feet northeast of the former UST excavation. B-5 was advanced to a depth of 9 feet bgs before meeting refusal. Soil samples were collected at the 1½-, 4½- and 8-foot-depth intervals for potential chemical analysis. Groundwater was encountered at about 7½ feet bgs. A temporary well screen was set between 7 and 9 feet bgs, and a groundwater sample was collected. ■ Soil boring B-6 was drilled approximately 20 feet east of the former UST excavation. B-6 was advanced to a depth of 9½ feet bgs before meeting refusal. Soil samples were collected at the 3-, 6- and 8-foot-depth intervals for potential chemical analysis. Groundwater was not encountered. ■ Soil boring B-7 was drilled approximately 20 feet northwest of the former UST excavation. B-7 was advanced to a depth of 8 feet bgs before meeting refusal. Soil samples were collected at the 2- and 6-foot-depth intervals for potential chemical analysis. Groundwater was not encountered. Environmental West backfilled each boring with bentonite. Excess soil cuttings and temporary well purge water were removed and disposed by Environmental West. Boring logs associated with the borings are included in Appendix A. 4.2. Subsurface Conditions Observed soil conditions varied within the borings with clay with sand, silty sand, silty gravel, fine to coarse gravel with silt, clay with gravel, and silt with sand encountered. In general, coarse material (sand and gravel) was present in most borings to depths between 2 and 5 feet bgs and underlain by fine materials (clay and silt) to the depths explored. Groundwater was encountered in four borings between 4½ and 8 feet bgs. 4.3. Field Screening and Sampling Soil samples from each boring were field-screened for the potential presence of petroleum contamination by PID, visual examination and water-sheen testing. PID headspace vapor readings were measured above 1 part per million (ppm) in borings B-1, B-2 and B-5. Contaminated soil field screening indicators were also observed in collected soil samples from borings B-1, B-2 and B-5. A slight to moderate sheen was noted, as well as, a slight petroleum odor. Field screening procedures are further described in Appendix A. One soil sample per slip-sleeve sampler was collected in laboratory-supplied containers for chemical analysis. Soil and groundwater sampling procedures also are described in Appendix A. 5.0 CHEMICAL ANALYTICAL RESULTS 5.1. Soil Chemical Analytical Results Seven soil samples were submitted to TestAmerica for the chemical analyses described in “Section 3.0 Scope of Services.” Submitted samples from the seven borings were collected between 4 and 8 feet bgs. December 29, 2016 | Page 4 File No. 0504-119-00 TestAmerica’s laboratory report is included in Appendix B; chemical analytical results are summarized and compared to MTCA Method A cleanup levels for unrestricted land use in Summary of Chemical Analytical Results – Soil, Tables 1 and 2. BTEX constituents were not reported greater than the laboratory method reporting limits in five of the soil samples submitted (from borings B-3 through B-7); however, the benzene reporting limits for the soil samples collected from borings B-4 and B-6 were greater than the MTCA Method A cleanup levels. GRPH was detected greater than reporting limits in the sample collected from B-5 and DRPH and ORPH were detected above the laboratory method reporting limits in borings B-1 and B-3, but reported concentrations did not exceed the MTCA Method A cleanup levels. Benzene concentrations in the sample collected from boring B-1 and GRPH concentrations in the samples collected from borings B-1 and B-2 exceeded the respective MTCA Method A cleanup levels. TABLE 1. SUMMARY OF CHEMICAL ANALYTICAL RESULTS – SOIL (BTEXN) Sample Identification Date Sampled Units Benzene Toluene Ethylbenzene m,p-Xylene o-Xylene Total Xylenes Naphthalene Site-3:B- 1(4.5-4.75) 12/02/16 mg/kg <0.10 0.61 <0.51 <2.0 <1.0 <3.0 <1.0 Site-3:B- 2(4.5-4.75) 12/02/16 mg/kg 0.032 <0.14 <0.14 <0.55 <0.28 <0.83 <0.28 Site-3:B- 3(6.5-6.75) 12/02/16 mg/kg <0.030 <0.15 <0.15 <0.60 <0.30 <0.90 <0.30 Site-3:B-4 (6-6.25) 12/02/16 mg/kg <0.031 <0.16 <0.16 <0.62 <0.31 <0.93 <0.31 Site-3:B-5 (4.75-5) 12/02/16 mg/kg <0.023 <0.12 <0.12 <0.46 <0.23 <0.70 <0.23 Site-3:B-6 (8-8.25) 12/02/16 mg/kg <0.023 <0.12 <0.12 <0.46 <0.23 <0.70 <0.23 Site-3: B-7 (6-6.25) 12/02/16 mg/kg <0.033 <0.16 <0.16 <0.66 <0.33 <0.99 <0.33 MTCA Method A CUL1 mg/kg 0.03 7 6 -- -- 9 5 Notes: 1MTCA Method A CUL - Washington State Model Toxics Control Act Method A unrestricted land use cleanup level mg/kg – milligrams per kilogram Bold - Analyte concentrations are greater than the laboratory method reporting limit. Yellow Highlight – Analyte concentrations exceeds MTCA Method A cleanup level. December 29, 2016 | Page 5 File No. 0504-119-00 TABLE 2. SUMMARY OF CHEMICAL ANALYTICAL RESULTS – SOIL (TPH) Sample Identification Date Sampled GRPH1 (mg/kg) DRPH2 (mg/kg) ORPH2 (mg/kg) Site-3: B-1 (4.5-4.75) 12/02/16 250 160 35 Site-3: B-2 (4.5-4.75) 12/02/16 46 17 <29 Site-3: B-3 (6.5-6.75) 12/02/16 <7.5 <12 <31 Site-3: B-4 (6-6.5) 12/02/16 <7.8 <13 <33 Site-3: B-5 (4.75-5) 12/02/16 0.64 <11 <28 Site-3: B-6 (8-8.25) 12/02/16 <5.8 <12 <29 Site-3: B-7 (6-6.25) 12/02/16 <8.2 <13 <33 MTCA Method A CUL3 30/1004 2,000 2,000 Notes: 1GRPH analyzed using Northwest Method NWTPH-Gx. 2DRPH analyzed using Northwest Method NWTPH-Dx. 3MTCA Method A CUL - Washington State Model Toxics Control Act Method A unrestricted land use cleanup level 4Cleanup level for gasoline-range petroleum hydrocarbons is 100 mg/kg if benzene is not detected and the total concentrations of ethylbenzene, toluene, and xylenes are less than 1 percent of the gasoline mixture; otherwise the cleanup level is 30 mg/kg. Bold - Analyte concentrations are greater than the laboratory method reporting limit. Yellow Highlight – Analyte concentrations exceeds MTCA Method A cleanup level. 5.2. Groundwater Chemical Analytical Results Four groundwater samples were submitted from the borings to TestAmerica for the chemical analyses described in “Section 3.0 Scope of Services.” TestAmerica’s laboratory report is included in Appendix B; chemical analytical results are summarized and compared to MTCA Method A cleanup levels for unrestricted land use in Summary of Chemical Analytical Results – Groundwater, Tables 3 and 4. GRPH, DRPH and ORPH concentrations exceeded the MTCA Method A cleanup level in the groundwater sample collected from boring B-1 groundwater. Although each groundwater sample collected from the other three temporary wells contained detectable concentrations of BTEXN, GRPH, DRPH and/or ORPH, none of those concentrations exceeded cleanup criteria. December 29, 2016 | Page 6 File No. 0504-119-00 TABLE 3. SUMMARY OF CHEMICAL ANALYTICAL RESULTS – GROUNDWATER (BTEXN) Sample Identification Date Sampled Units Benzene Toluene Ethylbenzene m,p-Xylene o-Xylene Total Xylenes Naphthalene Site-3:B-1:120216 12/02/16 µg/L 0.76 3.0 1.9 <2.0 <1.0 <3.0 8.8 Site-3:B-2:120216 12/02/16 µg/L 2.3 <1.0 2.3 <2.0 <1.0 <3.0 <2.0 Site-3:B-3:120216 12/02/16 µg/L <0.20 2.9 <1.0 <2.0 <1.0 <3.0 <2.0 Site-3:B-5:120216 12/02/16 µg/L <0.20 <1.0 <1.0 <2.0 <1.0 <3.0 <2.0 MTCA Method A CUL1 µg/L 5 1,000 700 -- -- 1,000 160 Notes: 1MTCA Method A CUL - Washington State Model Toxics Control Act Method A unrestricted land use cleanup level µg/L – Micrograms per liter Bold - Analyte concentrations are greater than the laboratory method reporting limit. TABLE 4. SUMMARY OF CHEMICAL ANALYTICAL RESULTS – GROUNDWATER (TPH) Sample Identification Date Sampled GRPH1 (µg/L) DRPH2 (mg/L) ORPH2 (mg/L) Site-3:B-1:120216 12/02/16 1,900 9.6 0.83 Site-3:B-2:120216 12/02/16 270 0.19 <0.22 Site-3:B-3:120216 12/02/16 <100 <0.13 0.41 Site-3:B-5:120216 12/02/16 <100 <0.13 0.28 MTCA Method A CUL3 1,000/8004 0.5 0.5 Notes: 1GRPH analyzed using Northwest Method NWTPH-Gx. 2DRPH analyzed using Northwest Method NWTPH-Dx. 3MTCA Method A CUL - Washington State Model Toxics Control Act Method A unrestricted land use cleanup level 4Cleanup level for gasoline-range petroleum hydrocarbons is 1,000 µg/l if benzene is not detected and the total concentrations of ethylbenzene, toluene, and xylenes are less than 1 percent of the gasoline mixture; otherwise the cleanup level is 800 µg/l. mg/L = milligrams per liter Bold - Analyte concentrations are greater than the laboratory method reporting limit. Yellow Highlight – Analyte concentrations exceeds MTCA Method A cleanup level. 6.0 SUMMARY, CONCLUSIONS AND RECOMMENDATIONS Soil and groundwater assessment activities were conducted December 2, 2016 at the Kittitas County Lower Shop site located at 505 West 14th Avenue in Ellensburg, Washington. Seven soil borings (B-1 through B-7) were advanced with depths ranging between 8 and 10½ feet bgs. Observed soil generally consisted of shallow sand and gravel underlain by silt and/or clay and included clay with sand, silty sand, silty gravel, fine to coarse gravel with silt, clay with gravel, and silt with sand. Groundwater was encountered in the borings between 4½ and 8 feet bgs. One soil sample from each boring was submitted for BTEXN, GRPH, DRPH and ORPH analysis. Benzene and/or GRPH concentrations exceeded the MTCA Method A cleanup levels in borings B-1 and B-2. Four December 29, 2016 | Page 7 File No. 0504-119-00 groundwater samples were submitted for BTEXN, GRPH, DRPH and ORPH analysis. GRPH, DRPH and ORPH concentrations exceeded the MTCA Method A cleanup level in the sample from boring B-1. Other detected analytes did not exceed the cleanup levels. Based on the chemical analytical results, a SHA ranking might be necessary. Based on the chemical analytical results, IDW concentrations exceed MTCA Method A unrestricted land use cleanup levels and therefore must be disposed at a licensed facility. The accumulated IDW amounted to approximately ¼ of a drum. 7.0 LIMITATIONS We have prepared this report for the exclusive use of Ecology and their authorized agents. Within the limitations of scope, schedule and budget, our services have been executed in accordance with generally accepted environmental science practices in this area at the time this report was prepared. The conclusions and opinions presented in this report are based on our professional knowledge, judgment and experience. 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 should be considered 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 “Report Limitations and Guidelines for Use,” Appendix C, for additional information pertaining to use of this report. FIGURES µ SITE Vicinity Map Figure 1 Kittitas County Lower Shop505 West 14th AvenueEllensburg, Washington 2,000 2,0000 Feet Data Source: Mapbox Open Street Map, 2016 Notes: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. 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 this communication. Projection: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet P:\0\0504119\GIS\MXDs\050411900_F01_VM.mxd Date Exported: 10/25/16 by ccabrera µ40 0 40 Feet Notes:1. The locations of all features shown are approximate.2. This drawing is for information purposes. It is intended to assist in showingfeatures discussed in an attached document. GeoEngineers, Inc. cannotguarantee the accuracy and content of electronic files. The master file is storedby GeoEngineers, Inc. and will serve as the of ficial record of this communication.Data Source: Aerial image from ESRI Data Online. Legend @ÑBoring N umber and Approximate Location @<Previous Boring Number and Approximate Location Former UST Approximate Location(Terragraphics 2013) P:\0\0504119\GIS\MXDs\050411900_F02_SP.mxd Date Exported: 12/16/16 by tkauhi @< @< @< @Ñ@Ñ @Ñ @Ñ @Ñ@Ñ @Ñ W 15th Ave N Okanogan StB-1 B-2 B-3B-4 B-5 B-6B-7 BH-24 BH-25 BH-26 Projection: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet Site Plan Kittitas County Lower Shop505 West 14th AvenueEllensburg, Washington Figure 2 APPENDICES APPENDIX A Field Procedures and Boring Logs December 29, 2016 | Page A-1 File No. 0504-119-00 APPENDIX A FIELD PROCEDURES AND BORING LOGS General Subsurface conditions at the Kittitas County Lower Shop site were explored on December 2, 2016, by advancing seven direct-push borings at the approximate locations shown on Figure 2. The borings were advanced between 8 to 10½ feet below existing site grade using a direct-push drill rig. Boring locations were established in the field using a site plan and measurements from onsite structures. Consequently, exploration locations should be considered accurate to the degree implied by the method used. Field methods generally were performed in compliance with the project Master Work Plan assessment procedures. Soil Sample Collection Soil samples were removed from the sleeve using clean nitrile gloves, and transferred into a laboratory prepared container, labeled with a waterproof pen, and placed on wet ice in a clean plastic-lined cooler. Direct-push drilling operations were observed by GeoEngineers staff who examined and classified the soil encountered, obtained soil samples, and maintained a continuous exploration log. Soil encountered in the borings was classified in general accordance with ASTM International (ASTM) D 2488 and the classification chart listed in Key to Exploration Logs, Figure A-1. Boring logs are presented in Figures A-2 through A-8. The logs are based on field data interpretation and indicate the depth at which subsurface materials or their characteristics change, although these changes might actually be gradual. Field Screening of Soil Samples GeoEngineers’ field representative performed field-screening tests on soil samples obtained from the borings. Field screening results were used as a general guideline to assess areas of possible petroleum- related contamination. The field screening methods used include: (1) PID screening; (2) visual screening; and (3) water-sheen screening. PID screening involves placing soil in a container and after agitating or warming, measuring total volatile organic compounds in the available head space. Visual screening consists of observing soil for stains indicative of metal- or petroleum-related contamination. Water-sheen screening involved placing soil in a pan of water and observing the water surface for signs of sheen. Sheen screening may detect both volatile and nonvolatile petroleum hydrocarbons. Sheens observed are classified as follows: No Sheen (NS) No visible sheen on the water surface. Slight Sheen (SS) Light, colorless, dull sheen; spread is irregular, not rapid; sheen dissipates rapidly. Natural organic matter in the soil may produce a slight sheen. Moderate Sheen (MS) Light to heavy sheen; may have some color/iridescence; spread is irregular to flowing, may be rapid; few remaining areas of no sheen on the water surface. Heavy Sheen (HS) Heavy sheen with color/iridescence; spread is rapid; entire water surface may be covered with sheen. December 29, 2016| Page A-2 File No. 0504-119-00 Field screening results can be site specific. The effectiveness of field screening can vary with temperature, moisture content, organic content, soil type, and contaminant type and age. Groundwater Sampling Groundwater samples were collected from the temporary well points consistent with the EPA’s low-flow groundwater sampling procedures (EPA 2010; Puls and Barcelona 1996). Dedicated polyethylene tubing and a portable peristaltic pump were used for groundwater purging and sampling. During purging activities, water quality parameters, including pH, temperature, conductivity, dissolved oxygen, and turbidity were measured using a multi-parameter meter equipped with a flow-through cell. Groundwater samples were collected after (1) water quality parameters stabilized; or (2) a maximum purge time of 15 minutes was achieved. During purging and sampling the purge rate did not exceed 400 milliliters per minute. Water quality parameter stabilization criteria included the following: ■ Turbidity: ±10 percent for values greater than 5 nephelometric turbidity units; ■ Conductivity: ±3 percent; ■ pH: ±0.1 unit; ■ Temperature: ±3 percent; and ■ Dissolved oxygen: ± 10 percent. Field water quality measurements and depth-to-water measurements were recorded on a Well Purging-Field Water Quality Measurement Form. The groundwater samples were transferred in the field to laboratory- prepared sample containers and kept cool during transport to the testing laboratory. COC procedures were observed from the time of sample collection to delivery to the testing laboratory consistent with the QAPP. AC Cement ConcreteCC Asphalt Concrete No Visible Sheen Slight Sheen Moderate Sheen Heavy Sheen Not Tested NS SS MS HS NT ADDITIONAL MATERIAL SYMBOLS Measured groundwater level in exploration, well, or piezometer Measured free product in well or piezometer Graphic Log Contact Groundwater Contact Material Description Contact Laboratory / Field Tests Sheen Classification Sampler Symbol Descriptions NOTE: The reader must refer to the discussion in the report text and the logs of explorations for a proper understanding of subsurface conditions. Descriptions on the logs apply only at the specific exploration locations and at the time the explorations were made; they are not warranted to be representative of subsurface conditions at other locations or times. GRAPH Topsoil/ Forest Duff/Sod Crushed Rock/ Quarry Spalls FIGURE A-1 2.4-inch I.D. split barrel SYMBOLS TYPICAL KEY TO EXPLORATION LOGS CR DESCRIPTIONSLETTER TS GC PT OH CH MH OL GM GP GW DESCRIPTIONS TYPICAL LETTER (APPRECIABLE AMOUNT OF FINES) MAJOR DIVISIONS POORLY-GRADED SANDS, GRAVELLY SAND PEAT, HUMUS, SWAMP SOILS WITH HIGH ORGANIC CONTENTS CLEAN SANDS GRAVELS WITH FINES CLEAN GRAVELS HIGHLY ORGANIC SOILS SILTS AND CLAYS SILTS AND CLAYS SAND AND SANDY SOILS GRAVEL AND GRAVELLY SOILS (LITTLE OR NO FINES) FINE GRAINED SOILS COARSE GRAINED SOILS SW MORE THAN 50% OF COARSE FRACTION RETAINED ON NO. 4 SIEVE CL WELL-GRADED SANDS, GRAVELLY SANDS SILTY GRAVELS, GRAVEL - SAND - SILT MIXTURES LIQUID LIMIT GREATER THAN 50 SILTY SANDS, SAND - SILTMIXTURES (APPRECIABLE AMOUNT OF FINES) SOIL CLASSIFICATION CHART LIQUID LIMIT LESS THAN 50 SANDS WITH FINES SP (LITTLE OR NO FINES) ML SC SM NOTE: Multiple symbols are used to indicate borderline or dual soil classifications MORE THAN 50% OF COARSE FRACTION PASSING NO. 4 SIEVE CLAYEY GRAVELS, GRAVEL - SAND - CLAY MIXTURES CLAYEY SANDS, SAND - CLAY MIXTURES INORGANIC SILTS, ROCK FLOUR, CLAYEY SILTS WITH SLIGHT PLASTICITY ORGANIC SILTS AND ORGANIC SILTY CLAYS OF LOW PLASTICITY INORGANIC SILTS, MICACEOUS OR DIATOMACEOUS SILTY SOILS ORGANIC CLAYS AND SILTS OF MEDIUM TO HIGH PLASTICITY INORGANIC CLAYS OF HIGH PLASTICITY MORE THAN 50% PASSING NO. 200 SIEVE MORE THAN 50% RETAINED ON NO. 200 SIEVE WELL-GRADED GRAVELS, GRAVEL - SAND MIXTURES POORLY-GRADED GRAVELS,GRAVEL - SAND MIXTURES INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, GRAVELLY CLAYS, SANDY CLAYS, SILTY CLAYS, LEAN CLAYS GRAPH SYMBOLS Standard Penetration Test (SPT) Shelby tube Piston Direct-Push Bulk or grab Continuous Coring Distinct contact between soil strata Approximate contact between soil strata Contact between geologic units Contact between soil of the same geologic unit %F %G AL CA CP CS DS HA MC MD OC PM PI PP PPM SA TX UC VS Percent fines Percent gravel Atterberg limits Chemical analysis Laboratory compaction test Consolidation test Direct shear Hydrometer analysis Moisture content Moisture content and dry density Organic content Permeability or hydraulic conductivity Plasticity index Pocket penetrometer Parts per million Sieve analysis Triaxial compression Unconfined compression Vane shear Blowcount is recorded for driven samplers as the number of blows required to advance sampler 12 inches (or distance noted). See exploration log for hammer weight and drop. A "P" indicates sampler pushed using the weight of the drill rig. A "WOH" indicates sampler pushed using the weight of the hammer. Rev. 02/16 Site-3:B-1 (2-2.25) Site-3:B-1 (4.5-4.75) CA Site-3:B-1 (9-9.25) 30 20 30 GP GM CL Approximately 2 inches of gray fine to coarse gravel (medium dense, moist) (crushed base course) Brown silty fine to coarse gravel with sand (medium dense, moist) Blue-gray clay with sand and occasional gravel (stiff, moist) Becomes wet Boring terminated at approximately 10½ feet due to refusal NS MS SS <1 8 3.3 Groundwater observed at approximately 8 feet below ground surface during drilling Total Depth (ft) Hammer Data System Datum Start End Checked By Logged By SHLDrilled Notes: CMD Surface Elevation (ft) Vertical Datum Driller Groundwater Depth to Water (ft)Date Measured Elevation (ft) Easting (X) Northing (Y) Geoprobe 5400 Environmental West Exploration, Inc.Drilling Method Direct-Push10.5 Autohammer 140 (lbs) / 30 (in) Drop Drilling Equipment 12/2/201612/2/2016 See Remarks Undetermined Note: See Figure A-1 for explanation of symbols.Spokane: Date:12/21/16 Path:P:\0\0504119\GINT\050411900.GPJ DBTemplate/LibTemplate:GEOENGINEERS_DF_STD_US.GDT/GEI8_ENVIRONMENTAL_STANDARD_NO_GWFIELD DATA Depth (feet)0 5 10 IntervalElevation (feet)Sample NameTestingRecovered (in)Collected SampleBlows/footGraphic LogGroupClassificationMATERIAL DESCRIPTION Log of Direct-Push Boring B-1 Kittitas County Lower County Shop Ellensburg, Washington 0504-119-00 Project: Project Location: Project Number:Figure A-2 Sheet 1 of 1SheenHeadspaceVapor (ppm)REMARKS Site-3:B-2 (2-2.5) Site-3:B-2 (4.5-4.75) CA Site-3:B-2 (8-8.25) 28 15 12 GP GM GP CL Approximately 2 inches of gray fine to coarse gravel (medium dense, moist) (crushed base course) Brown silty fine to coarse gravel with sand (medium dense, moist) Black fine to coarse gravel with trace silt (medium dense, wet) Blue-gray clay with sand and trace silt (stiff, wet) Grades with occasional gravel Boring terminated at approximately 9 feet due to refusal NS SS NS NS <1 10.4 3.4 2.3 Groundwater observed at approximately 4½ feet below ground surface during drilling Total Depth (ft) Hammer Data System Datum Start End Checked By Logged By SHLDrilled Notes: CMD Surface Elevation (ft) Vertical Datum Driller Groundwater Depth to Water (ft)Date Measured Elevation (ft) Easting (X) Northing (Y) Geoprobe 5400 Environmental West Exploration, Inc.Drilling Method Direct-Push9 Autohammer 140 (lbs) / 30 (in) Drop Drilling Equipment 12/2/201612/2/2016 See Remarks Undetermined Note: See Figure A-1 for explanation of symbols.Spokane: Date:12/21/16 Path:P:\0\0504119\GINT\050411900.GPJ DBTemplate/LibTemplate:GEOENGINEERS_DF_STD_US.GDT/GEI8_ENVIRONMENTAL_STANDARD_NO_GWFIELD DATA Depth (feet)0 5 IntervalElevation (feet)Sample NameTestingRecovered (in)Collected SampleBlows/footGraphic LogGroupClassificationMATERIAL DESCRIPTION Log of Direct-Push Boring B-2 Kittitas County Lower County Shop Ellensburg, Washington 0504-119-00 Project: Project Location: Project Number:Figure A-3 Sheet 1 of 1SheenHeadspaceVapor (ppm)REMARKS Site-3:B-3 (3.25-3.5) Site-3:B-3 (6.5-6.75) CA Site-3:B-3 (8-8.25) 40 30 3 GP GM ML ML Approximately 1 inch of gray fine to coarse gravel (medium dense, moist) (crushed base course) Brown silty fine to coarse gravel with sand (medium dense, moist) Brown silt with sand (stiff, moist) Light brown silt with sand (stiff, moist) Boring terminated at approximately 8½ feet due to refusal NS NS NS <1 <1 <1 Groundwater observed at approximately 8 feet below ground surface during drilling Total Depth (ft) Hammer Data System Datum Start End Checked By Logged By SHLDrilled Notes: CMD Surface Elevation (ft) Vertical Datum Driller Groundwater Depth to Water (ft)Date Measured Elevation (ft) Easting (X) Northing (Y) Geoprobe 5400 Environmental West Exploration, Inc.Drilling Method Direct-Push8.5 Autohammer 140 (lbs) / 30 (in) Drop Drilling Equipment 12/2/201612/2/2016 See Remarks Undetermined Note: See Figure A-1 for explanation of symbols.Spokane: Date:12/21/16 Path:P:\0\0504119\GINT\050411900.GPJ DBTemplate/LibTemplate:GEOENGINEERS_DF_STD_US.GDT/GEI8_ENVIRONMENTAL_STANDARD_NO_GWFIELD DATA Depth (feet)0 5 IntervalElevation (feet)Sample NameTestingRecovered (in)Collected SampleBlows/footGraphic LogGroupClassificationMATERIAL DESCRIPTION Log of Direct-Push Boring B-3 Kittitas County Lower County Shop Ellensburg, Washington 0504-119-00 Project: Project Location: Project Number:Figure A-4 Sheet 1 of 1SheenHeadspaceVapor (ppm)REMARKS Site-3:B-4 (3-3.25) Site-3:B-4 (6-6.25) CA 38 36 0 GP SP-SM SM ML Approximately 2 inches of gray fine to coarse gravel (medium dense, moist) (crushed base course) Brown fine to coarse sand with silt and gravel (medium dense, moist) Brown silty fine to coarse sand (medium dense, moist) Light brown silt with sand (stiff, moist) Boring terminated at approximately 8½ feet due to refusal NS NS <1 <1 Total Depth (ft) Hammer Data System Datum Start End Checked By Logged By SHLDrilled Notes: CMD Surface Elevation (ft) Vertical Datum Driller Groundwater Depth to Water (ft)Date Measured Elevation (ft) Easting (X) Northing (Y) Geoprobe 5400 Environmental West Exploration, Inc.Drilling Method Direct-Push8.5 Autohammer 140 (lbs) / 30 (in) Drop Drilling Equipment 12/2/201612/2/2016 None Observed Undetermined Note: See Figure A-1 for explanation of symbols.Spokane: Date:12/21/16 Path:P:\0\0504119\GINT\050411900.GPJ DBTemplate/LibTemplate:GEOENGINEERS_DF_STD_US.GDT/GEI8_ENVIRONMENTAL_STANDARD_NO_GWFIELD DATA Depth (feet)0 5 IntervalElevation (feet)Sample NameTestingRecovered (in)Collected SampleBlows/footGraphic LogGroupClassificationMATERIAL DESCRIPTION Log of Direct-Push Boring B-4 Kittitas County Lower County Shop Ellensburg, Washington 0504-119-00 Project: Project Location: Project Number:Figure A-5 Sheet 1 of 1SheenHeadspaceVapor (ppm)REMARKS Site-3: B-5 (1.5-1.75) Site-3: B-5 (4.75-5) CA Site-3: B-5 (8-8.25) 24 12 5 GP GP-GM GP-GM Approximately 2 inches of gray fine to coarse gravel (medium dense, moist) (crushed base course) Brown fine to medium gravel with silt and sand (medium dense, moist) Black fine to medium gravel with silt and sand (medium dense, wet) Boring terminated at approximately 9 feet due to refusal NS SS NS <1 4.3 <1 Groundwater observed at approximately 7½ feet below ground surface during drilling Total Depth (ft) Hammer Data System Datum Start End Checked By Logged By SHLDrilled Notes: CMD Surface Elevation (ft) Vertical Datum Driller Groundwater Depth to Water (ft)Date Measured Elevation (ft) Easting (X) Northing (Y) Geoprobe 5400 Environmental West Exploration, Inc.Drilling Method Direct-Push9 Autohammer 140 (lbs) / 30 (in) Drop Drilling Equipment 12/2/201612/2/2016 See Remarks Undetermined Note: See Figure A-1 for explanation of symbols.Spokane: Date:12/21/16 Path:P:\0\0504119\GINT\050411900.GPJ DBTemplate/LibTemplate:GEOENGINEERS_DF_STD_US.GDT/GEI8_ENVIRONMENTAL_STANDARD_NO_GWFIELD DATA Depth (feet)0 5 IntervalElevation (feet)Sample NameTestingRecovered (in)Collected SampleBlows/footGraphic LogGroupClassificationMATERIAL DESCRIPTION Log of Direct-Push Boring B-5 Kittitas County Lower County Shop Ellensburg, Washington 0504-119-00 Project: Project Location: Project Number:Figure A-6 Sheet 1 of 1SheenHeadspaceVapor (ppm)REMARKS Site-3:B-6 (3.25-3.5) Site-3:B-6 (6-6.25) Site-3:B-6 (8-8.25) CA 42 34 18 GP SP-SM ML ML ML Approximately 2 inches of gray fine to coarse gravel (medium dense, moist) (crushed base course) Brown fine to coarse sand with silt (medium dense, moist) Brown sandy silt (stiff, moist) Blue-gray silt with sand (stiff, moist) Light brown silt with sand and gravel (stiff, moist) Boring terminated at approximately 9½ feet due to refusal NS NS NS <1 <1 <1 Total Depth (ft) Hammer Data System Datum Start End Checked By Logged By SHLDrilled Notes: CMD Surface Elevation (ft) Vertical Datum Driller Groundwater Depth to Water (ft)Date Measured Elevation (ft) Easting (X) Northing (Y) Geoprobe 5400 Environmental West Exploration, Inc.Drilling Method Direct-Push9.5 Autohammer 140 (lbs) / 30 (in) Drop Drilling Equipment 12/2/201612/2/2016 None Observed Undetermined Note: See Figure A-1 for explanation of symbols.Spokane: Date:12/21/16 Path:P:\0\0504119\GINT\050411900.GPJ DBTemplate/LibTemplate:GEOENGINEERS_DF_STD_US.GDT/GEI8_ENVIRONMENTAL_STANDARD_NO_GWFIELD DATA Depth (feet)0 5 IntervalElevation (feet)Sample NameTestingRecovered (in)Collected SampleBlows/footGraphic LogGroupClassificationMATERIAL DESCRIPTION Log of Direct-Push Boring B-6 Kittitas County Lower County Shop Ellensburg, Washington 0504-119-00 Project: Project Location: Project Number:Figure A-7 Sheet 1 of 1SheenHeadspaceVapor (ppm)REMARKS Site-3:B-7 (2-2.25) Site-3:B-7 (6-6.25) CA 30 30 GP SP ML ML Approximately 3 inches of gray fine to coarse gravel (medium dense, moist) (crushed base course) Brown fine to coarse sand with silt and gravel (medium dense, moist) Brown sandy silt (stiff, moist) Light brown silt with sand (stiff, moist) Boring terminated at approximately 8 feet due to refusal NS NS <1 <1 Total Depth (ft) Hammer Data System Datum Start End Checked By Logged By SHLDrilled Notes: CMD Surface Elevation (ft) Vertical Datum Driller Groundwater Depth to Water (ft)Date Measured Elevation (ft) Easting (X) Northing (Y) Geoprobe 5400 Environmental West Exploration, Inc.Drilling Method Direct-Push8 Autohammer 140 (lbs) / 30 (in) Drop Drilling Equipment 12/2/201612/2/2016 None Observed Undetermined Note: See Figure A-1 for explanation of symbols.Spokane: Date:12/21/16 Path:P:\0\0504119\GINT\050411900.GPJ DBTemplate/LibTemplate:GEOENGINEERS_DF_STD_US.GDT/GEI8_ENVIRONMENTAL_STANDARD_NO_GWFIELD DATA Depth (feet)0 5 IntervalElevation (feet)Sample NameTestingRecovered (in)Collected SampleBlows/footGraphic LogGroupClassificationMATERIAL DESCRIPTION Log of Direct-Push Boring B-7 Kittitas County Lower County Shop Ellensburg, Washington 0504-119-00 Project: Project Location: Project Number:Figure A-8 Sheet 1 of 1SheenHeadspaceVapor (ppm)REMARKS APPENDIX B Chemical Analytical Laboratory Reports December 29, 2016 | Page B-1 File No. 0504-119-00 APPENDIX B CHEMICAL ANALYTICAL LABORATORY REPORTS Samples Chain-of-custody procedures were followed during the transport of the field samples to TestAmerica located in Spokane, Washington. The samples were held in cold storage pending extraction and/or analysis. The analytical results and quality control records are included in this appendix. Analytical Data Review The laboratory maintains an internal quality assurance/quality control (QA/QC) program as documented in its laboratory quality assurance manual. The laboratory uses 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 laboratory also uses data quality goals for individual chemicals or groups of chemicals based on the long-term performance of the test methods. The data quality goals were included in the laboratory report dated December 12, 2016. Analytical Data Review Summary We reviewed the laboratory internal QA/QC in the context of data quality goals. Based on our review, in our opinion, the quality of the analytical data is acceptable for the intended use. ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Spokane 11922 East 1st Ave Spokane, WA 99206 Tel: (509)924-9200 TestAmerica Job ID: 590-5133-1 Client Project/Site: Kittitas County Shop 0504-119-00 For: GeoEngineers Inc 523 East Second Ave Spokane, Washington 99202 Attn: Scott Lathen Authorized for release by: 12/12/2016 2:55:26 PM Randee Arrington, Project Manager II (509)924-9200 randee.arrington@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 Table of Contents Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 TestAmerica Job ID: 590-5133-1 Page 2 of 30 TestAmerica Spokane 12/12/2016 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 1 2 3 4 5 6 7 8 9 10 11 12 Case Narrative Client: GeoEngineers Inc TestAmerica Job ID: 590-5133-1 Project/Site: Kittitas County Shop 0504-119-00 Job ID: 590-5133-1 Laboratory: TestAmerica Spokane Narrative Receipt The samples were received on 12/5/2016 11:55 AM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was 3.8º C. Receipt Exceptions The following sample was collected in an improper container: Site-3: B-7 (6-6.25) (590-5133-22) and Site-3 : B-6 (8-8.25) (590-5133-23). VOC was collected as dirt in jar. Samples were not collected according to 5035A specifications. GC/MS VOA Method 8260C: The following samples were diluted due to the nature of the sample matrix: Site-3:B-1 (4.5-4.75) (590-5133-2), (590-5128-A-1-A) and (590-5128-A-1-A DU). Elevated reporting limits (RLs) are provided. Method 8260C: The following samples were received outside of holding time without methanol preservation: Site-3: B-7 (6-6.25) (590-5133-22) and Site-3 : B-6 (8-8.25) (590-5133-23). Method 8260C: The continuing calibration verification (CCV) associated with batch 590-9939 recovered above the upper control limit for 1,1,1-Trichloroethane and Carbon tetrachloride. The samples associated with this CCV were non-detects for the affected analytes; therefore, the data have been reported. The following samples are impacted: Site-3:B-1:120216 (590-5133-4), Site-3:B-2 :120216 (590-5133-8), Site-3 :B-3:120216 (590-5133-12) and Site-3: B-5 :120216 (590-5133-18). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. GC Semi VOA Method NWTPH-Dx: The %RPD of the laboratory control sample (LCS) and laboratory control standard duplicate (LCSD) for preparation batch 590-9914 recovered outside control limits for the following analytes: Diesel Range Organics (DRO) (C10-C25). The analyte recovery was within acceptance limits, therefore data will be flagged and reported. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. General Chemistry No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. VOA Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. TestAmerica Spokane Page 3 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Sample Summary TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Lab Sample ID Client Sample ID ReceivedCollectedMatrix 590-5133-2 Site-3:B-1 (4.5-4.75)Solid 12/02/16 09:20 12/05/16 11:55 590-5133-4 Site-3:B-1:120216 Water 12/02/16 10:00 12/05/16 11:55 590-5133-6 Site-3:B-2 (4.5-4.75)Solid 12/02/16 10:05 12/05/16 11:55 590-5133-8 Site-3:B-2 :120216 Water 12/02/16 10:35 12/05/16 11:55 590-5133-10 Site-3 :B-3 (6.5-6.75)Solid 12/02/16 10:50 12/05/16 11:55 590-5133-12 Site-3 :B-3:120216 Water 12/02/16 11:25 12/05/16 11:55 590-5133-14 Site-3: B-4 (6-6.25)Solid 12/02/16 11:45 12/05/16 11:55 590-5133-16 Site-3: B-5 (4.75-5)Solid 12/02/16 11:55 12/05/16 11:55 590-5133-18 Site-3: B-5 :120216 Water 12/02/16 12:40 12/05/16 11:55 590-5133-22 Site-3: B-7 (6-6.25)Solid 12/02/16 13:25 12/05/16 11:55 590-5133-23 Site-3 : B-6 (8-8.25)Solid 12/02/16 13:00 12/05/16 11:55 TestAmerica Spokane Page 4 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Definitions/Glossary TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Qualifiers GC/MS VOA Qualifier Description H Sample was prepped or analyzed beyond the specified holding time Qualifier GC Semi VOA Qualifier Description *RPD of the LCS and LCSD exceeds the control limits Qualifier Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CNF Contains no Free Liquid DER Duplicate error ratio (normalized absolute difference) Dil Fac Dilution Factor DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision level concentration MDA Minimum detectable activity EDL Estimated Detection Limit MDC Minimum detectable concentration MDL Method Detection Limit ML Minimum Level (Dioxin) NC Not Calculated ND Not detected at the reporting limit (or MDL or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RER Relative error ratio RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TestAmerica Spokane Page 5 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Lab Sample ID: 590-5133-2Client Sample ID: Site-3:B-1 (4.5-4.75) Matrix: SolidDate Collected: 12/02/16 09:20 Percent Solids: 82.3Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.10 mg/Kg ☼12/05/16 15:29 12/06/16 13:47 4 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.51 mg/Kg 12/05/16 15:29 12/06/16 13:47 4☼Ethylbenzene ND 2.0 mg/Kg 12/05/16 15:29 12/06/16 13:47 4☼m,p-Xylene ND 1.0 mg/Kg 12/05/16 15:29 12/06/16 13:47 4☼o-Xylene ND 0.51 mg/Kg 12/05/16 15:29 12/06/16 13:47 4☼Toluene 0.61 3.0 mg/Kg 12/05/16 15:29 12/06/16 13:47 4☼Xylenes, Total ND 1.0 mg/Kg 12/05/16 15:29 12/06/16 13:47 4☼Naphthalene ND 1,2-Dichloroethane-d4 (Surr)110 75 -120 12/05/16 15:29 12/06/16 13:47 4 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)109 12/05/16 15:29 12/06/16 13:47 476-122 Dibromofluoromethane (Surr)103 12/05/16 15:29 12/06/16 13:47 480-120 Toluene-d8 (Surr)96 12/05/16 15:29 12/06/16 13:47 480-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline 250 25 mg/Kg ☼12/05/16 15:29 12/06/16 13:47 4 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)109 41.5 -162 12/05/16 15:29 12/06/16 13:47 4 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) 160 12 mg/Kg ☼12/06/16 08:26 12/07/16 08:39 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 30 mg/Kg 12/06/16 08:26 12/07/16 08:39 1☼Residual Range Organics (RRO) (C25-C36) 35 o-Terphenyl 106 50 -150 12/06/16 08:26 12/07/16 08:39 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 92 12/06/16 08:26 12/07/16 08:39 150-150 Lab Sample ID: 590-5133-4Client Sample ID: Site-3:B-1:120216 Matrix: WaterDate Collected: 12/02/16 10:00 Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene 0.76 0.20 ug/L 12/08/16 05:52 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 12/08/16 05:52 1Ethylbenzene1.9 2.0 ug/L 12/08/16 05:52 1m,p-Xylene ND 1.0 ug/L 12/08/16 05:52 1o-Xylene ND 1.0 ug/L 12/08/16 05:52 1Toluene3.0 3.0 ug/L 12/08/16 05:52 1Xylenes, Total ND 2.0 ug/L 12/09/16 15:31 1Naphthalene8.8 1,2-Dichloroethane-d4 (Surr)117 70 -125 12/08/16 05:52 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 1,2-Dichloroethane-d4 (Surr)106 12/09/16 15:31 170-125 4-Bromofluorobenzene (Surr)102 12/08/16 05:52 169-120 4-Bromofluorobenzene (Surr)105 12/09/16 15:31 169-120 TestAmerica Spokane Page 6 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Lab Sample ID: 590-5133-4Client Sample ID: Site-3:B-1:120216 Matrix: WaterDate Collected: 12/02/16 10:00 Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS (Continued) Dibromofluoromethane (Surr)108 80 -120 12/08/16 05:52 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)94 12/09/16 15:31 180-120 Toluene-d8 (Surr)94 12/08/16 05:52 180-120 Toluene-d8 (Surr)91 12/09/16 15:31 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline 1900 100 ug/L 12/08/16 05:52 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)102 68.7 -141 12/08/16 05:52 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) 9.6 *0.14 mg/L 12/06/16 11:30 12/06/16 19:44 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.23 mg/L 12/06/16 11:30 12/06/16 19:44 1Residual Range Organics (RRO) (C25-C36) 0.83 o-Terphenyl 108 50 -150 12/06/16 11:30 12/06/16 19:44 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 90 12/06/16 11:30 12/06/16 19:44 150-150 Lab Sample ID: 590-5133-6Client Sample ID: Site-3:B-2 (4.5-4.75) Matrix: SolidDate Collected: 12/02/16 10:05 Percent Solids: 84.4Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene 0.032 0.028 mg/Kg ☼12/05/16 15:29 12/06/16 14:09 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.14 mg/Kg 12/05/16 15:29 12/06/16 14:09 1☼Ethylbenzene ND 0.55 mg/Kg 12/05/16 15:29 12/06/16 14:09 1☼m,p-Xylene ND 0.28 mg/Kg 12/05/16 15:29 12/06/16 14:09 1☼o-Xylene ND 0.14 mg/Kg 12/05/16 15:29 12/06/16 14:09 1☼Toluene ND 0.83 mg/Kg 12/05/16 15:29 12/06/16 14:09 1☼Xylenes, Total ND 0.28 mg/Kg 12/05/16 15:29 12/06/16 14:09 1☼Naphthalene ND 1,2-Dichloroethane-d4 (Surr)111 75 -120 12/05/16 15:29 12/06/16 14:09 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)105 12/05/16 15:29 12/06/16 14:09 176-122 Dibromofluoromethane (Surr)105 12/05/16 15:29 12/06/16 14:09 180-120 Toluene-d8 (Surr)95 12/05/16 15:29 12/06/16 14:09 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline 46 6.9 mg/Kg ☼12/05/16 15:29 12/06/16 14:09 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)105 41.5 -162 12/05/16 15:29 12/06/16 14:09 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery TestAmerica Spokane Page 7 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Lab Sample ID: 590-5133-6Client Sample ID: Site-3:B-2 (4.5-4.75) Matrix: SolidDate Collected: 12/02/16 10:05 Percent Solids: 84.4Date Received: 12/05/16 11:55 Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) 17 12 mg/Kg ☼12/06/16 08:26 12/07/16 08:56 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 29 mg/Kg 12/06/16 08:26 12/07/16 08:56 1☼Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 92 50 -150 12/06/16 08:26 12/07/16 08:56 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 92 12/06/16 08:26 12/07/16 08:56 150-150 Lab Sample ID: 590-5133-8Client Sample ID: Site-3:B-2 :120216 Matrix: WaterDate Collected: 12/02/16 10:35 Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene 2.3 0.20 ug/L 12/08/16 06:13 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 12/08/16 06:13 1Ethylbenzene2.3 2.0 ug/L 12/08/16 06:13 1m,p-Xylene ND 1.0 ug/L 12/08/16 06:13 1o-Xylene ND 1.0 ug/L 12/08/16 06:13 1TolueneND 3.0 ug/L 12/08/16 06:13 1Xylenes, Total ND 2.0 ug/L 12/08/16 06:13 1NaphthaleneND 1,2-Dichloroethane-d4 (Surr)119 70 -125 12/08/16 06:13 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)101 12/08/16 06:13 169-120 Dibromofluoromethane (Surr)103 12/08/16 06:13 180-120 Toluene-d8 (Surr)99 12/08/16 06:13 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline 270 100 ug/L 12/08/16 06:13 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)101 68.7 -141 12/08/16 06:13 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) 0.19 *0.13 mg/L 12/06/16 11:30 12/06/16 20:17 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.22 mg/L 12/06/16 11:30 12/06/16 20:17 1Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 88 50 -150 12/06/16 11:30 12/06/16 20:17 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 90 12/06/16 11:30 12/06/16 20:17 150-150 TestAmerica Spokane Page 8 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Lab Sample ID: 590-5133-10Client Sample ID: Site-3 :B-3 (6.5-6.75) Matrix: SolidDate Collected: 12/02/16 10:50 Percent Solids: 76.9Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.030 mg/Kg ☼12/05/16 15:29 12/06/16 14:30 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.15 mg/Kg 12/05/16 15:29 12/06/16 14:30 1☼Ethylbenzene ND 0.60 mg/Kg 12/05/16 15:29 12/06/16 14:30 1☼m,p-Xylene ND 0.30 mg/Kg 12/05/16 15:29 12/06/16 14:30 1☼o-Xylene ND 0.15 mg/Kg 12/05/16 15:29 12/06/16 14:30 1☼Toluene ND 0.90 mg/Kg 12/05/16 15:29 12/06/16 14:30 1☼Xylenes, Total ND 0.30 mg/Kg 12/05/16 15:29 12/06/16 14:30 1☼Naphthalene ND 1,2-Dichloroethane-d4 (Surr)112 75 -120 12/05/16 15:29 12/06/16 14:30 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)104 12/05/16 15:29 12/06/16 14:30 176-122 Dibromofluoromethane (Surr)103 12/05/16 15:29 12/06/16 14:30 180-120 Toluene-d8 (Surr)94 12/05/16 15:29 12/06/16 14:30 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 7.5 mg/Kg ☼12/05/16 15:29 12/06/16 14:30 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)104 41.5 -162 12/05/16 15:29 12/06/16 14:30 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 12 mg/Kg ☼12/06/16 08:26 12/06/16 15:34 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 31 mg/Kg 12/06/16 08:26 12/06/16 15:34 1☼Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 93 50 -150 12/06/16 08:26 12/06/16 15:34 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 94 12/06/16 08:26 12/06/16 15:34 150-150 Lab Sample ID: 590-5133-12Client Sample ID: Site-3 :B-3:120216 Matrix: WaterDate Collected: 12/02/16 11:25 Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.20 ug/L 12/08/16 06:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 12/08/16 06:35 1EthylbenzeneND 2.0 ug/L 12/08/16 06:35 1m,p-Xylene ND 1.0 ug/L 12/08/16 06:35 1o-Xylene ND 1.0 ug/L 12/08/16 06:35 1Toluene2.9 3.0 ug/L 12/08/16 06:35 1Xylenes, Total ND 2.0 ug/L 12/08/16 06:35 1NaphthaleneND 1,2-Dichloroethane-d4 (Surr)119 70 -125 12/08/16 06:35 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)102 12/08/16 06:35 169-120 Dibromofluoromethane (Surr)108 12/08/16 06:35 180-120 Toluene-d8 (Surr)95 12/08/16 06:35 180-120 TestAmerica Spokane Page 9 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Lab Sample ID: 590-5133-12Client Sample ID: Site-3 :B-3:120216 Matrix: WaterDate Collected: 12/02/16 11:25 Date Received: 12/05/16 11:55 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 100 ug/L 12/08/16 06:35 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)102 68.7 -141 12/08/16 06:35 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND *0.13 mg/L 12/06/16 11:30 12/06/16 20:33 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.22 mg/L 12/06/16 11:30 12/06/16 20:33 1Residual Range Organics (RRO) (C25-C36) 0.41 o-Terphenyl 88 50 -150 12/06/16 11:30 12/06/16 20:33 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 90 12/06/16 11:30 12/06/16 20:33 150-150 Lab Sample ID: 590-5133-14Client Sample ID: Site-3: B-4 (6-6.25) Matrix: SolidDate Collected: 12/02/16 11:45 Percent Solids: 75.5Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.031 mg/Kg ☼12/05/16 15:29 12/06/16 14:51 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.16 mg/Kg 12/05/16 15:29 12/06/16 14:51 1☼Ethylbenzene ND 0.62 mg/Kg 12/05/16 15:29 12/06/16 14:51 1☼m,p-Xylene ND 0.31 mg/Kg 12/05/16 15:29 12/06/16 14:51 1☼o-Xylene ND 0.16 mg/Kg 12/05/16 15:29 12/06/16 14:51 1☼Toluene ND 0.93 mg/Kg 12/05/16 15:29 12/06/16 14:51 1☼Xylenes, Total ND 0.31 mg/Kg 12/05/16 15:29 12/06/16 14:51 1☼Naphthalene ND 1,2-Dichloroethane-d4 (Surr)109 75 -120 12/05/16 15:29 12/06/16 14:51 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)99 12/05/16 15:29 12/06/16 14:51 176-122 Dibromofluoromethane (Surr)103 12/05/16 15:29 12/06/16 14:51 180-120 Toluene-d8 (Surr)95 12/05/16 15:29 12/06/16 14:51 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 7.8 mg/Kg ☼12/05/16 15:29 12/06/16 14:51 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)99 41.5 -162 12/05/16 15:29 12/06/16 14:51 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 13 mg/Kg ☼12/06/16 08:26 12/06/16 15:51 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 33 mg/Kg 12/06/16 08:26 12/06/16 15:51 1☼Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 93 50 -150 12/06/16 08:26 12/06/16 15:51 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 92 12/06/16 08:26 12/06/16 15:51 150-150 TestAmerica Spokane Page 10 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Lab Sample ID: 590-5133-16Client Sample ID: Site-3: B-5 (4.75-5) Matrix: SolidDate Collected: 12/02/16 11:55 Percent Solids: 85.9Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.00046 mg/Kg ☼12/05/16 15:29 12/06/16 15:12 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.0023 mg/Kg 12/05/16 15:29 12/06/16 15:12 1☼Ethylbenzene ND 0.0093 mg/Kg 12/05/16 15:29 12/06/16 15:12 1☼m,p-Xylene ND 0.0046 mg/Kg 12/05/16 15:29 12/06/16 15:12 1☼o-Xylene ND 0.0023 mg/Kg 12/05/16 15:29 12/06/16 15:12 1☼Toluene ND 0.014 mg/Kg 12/05/16 15:29 12/06/16 15:12 1☼Xylenes, Total ND 0.0046 mg/Kg 12/05/16 15:29 12/06/16 15:12 1☼Naphthalene ND 1,2-Dichloroethane-d4 (Surr)107 75 -120 12/05/16 15:29 12/06/16 15:12 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)103 12/05/16 15:29 12/06/16 15:12 176-122 Dibromofluoromethane (Surr)104 12/05/16 15:29 12/06/16 15:12 180-120 Toluene-d8 (Surr)96 12/05/16 15:29 12/06/16 15:12 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline 0.64 0.12 mg/Kg ☼12/05/16 15:29 12/06/16 15:12 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)103 41.5 -162 12/05/16 15:29 12/06/16 15:12 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 11 mg/Kg ☼12/06/16 08:26 12/06/16 16:08 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 28 mg/Kg 12/06/16 08:26 12/06/16 16:08 1☼Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 96 50 -150 12/06/16 08:26 12/06/16 16:08 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 96 12/06/16 08:26 12/06/16 16:08 150-150 Lab Sample ID: 590-5133-18Client Sample ID: Site-3: B-5 :120216 Matrix: WaterDate Collected: 12/02/16 12:40 Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.20 ug/L 12/08/16 06:57 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 12/08/16 06:57 1EthylbenzeneND 2.0 ug/L 12/08/16 06:57 1m,p-Xylene ND 1.0 ug/L 12/08/16 06:57 1o-Xylene ND 1.0 ug/L 12/08/16 06:57 1TolueneND 3.0 ug/L 12/08/16 06:57 1Xylenes, Total ND 2.0 ug/L 12/08/16 06:57 1NaphthaleneND 1,2-Dichloroethane-d4 (Surr)122 70 -125 12/08/16 06:57 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)101 12/08/16 06:57 169-120 Dibromofluoromethane (Surr)107 12/08/16 06:57 180-120 Toluene-d8 (Surr)92 12/08/16 06:57 180-120 TestAmerica Spokane Page 11 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Lab Sample ID: 590-5133-18Client Sample ID: Site-3: B-5 :120216 Matrix: WaterDate Collected: 12/02/16 12:40 Date Received: 12/05/16 11:55 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 100 ug/L 12/08/16 06:57 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)101 68.7 -141 12/08/16 06:57 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND *0.13 mg/L 12/06/16 11:30 12/06/16 20:49 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.21 mg/L 12/06/16 11:30 12/06/16 20:49 1Residual Range Organics (RRO) (C25-C36) 0.28 o-Terphenyl 91 50 -150 12/06/16 11:30 12/06/16 20:49 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 93 12/06/16 11:30 12/06/16 20:49 150-150 Lab Sample ID: 590-5133-22Client Sample ID: Site-3: B-7 (6-6.25) Matrix: SolidDate Collected: 12/02/16 13:25 Percent Solids: 74.1Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND H 0.033 mg/Kg ☼12/06/16 11:22 12/06/16 15:51 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.16 mg/Kg 12/06/16 11:22 12/06/16 15:51 1☼Ethylbenzene ND H 0.66 mg/Kg 12/06/16 11:22 12/06/16 15:51 1☼m,p-Xylene ND H 0.33 mg/Kg 12/06/16 11:22 12/06/16 15:51 1☼o-Xylene ND H 0.16 mg/Kg 12/06/16 11:22 12/06/16 15:51 1☼Toluene ND H 0.99 mg/Kg 12/06/16 11:22 12/06/16 15:51 1☼Xylenes, Total ND H 0.33 mg/Kg 12/06/16 11:22 12/06/16 15:51 1☼Naphthalene ND H 1,2-Dichloroethane-d4 (Surr)101 75 -120 12/06/16 11:22 12/06/16 15:51 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)98 12/06/16 11:22 12/06/16 15:51 176-122 Dibromofluoromethane (Surr)102 12/06/16 11:22 12/06/16 15:51 180-120 Toluene-d8 (Surr)100 12/06/16 11:22 12/06/16 15:51 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND H 8.2 mg/Kg ☼12/06/16 11:22 12/06/16 15:51 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)98 41.5 -162 12/06/16 11:22 12/06/16 15:51 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 13 mg/Kg ☼12/06/16 08:26 12/06/16 16:25 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 33 mg/Kg 12/06/16 08:26 12/06/16 16:25 1☼Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 93 50 -150 12/06/16 08:26 12/06/16 16:25 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 94 12/06/16 08:26 12/06/16 16:25 150-150 TestAmerica Spokane Page 12 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Lab Sample ID: 590-5133-23Client Sample ID: Site-3 : B-6 (8-8.25) Matrix: SolidDate Collected: 12/02/16 13:00 Percent Solids: 81.8Date Received: 12/05/16 11:55 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND H 0.023 mg/Kg ☼12/06/16 11:22 12/06/16 16:12 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.12 mg/Kg 12/06/16 11:22 12/06/16 16:12 1☼Ethylbenzene ND H 0.46 mg/Kg 12/06/16 11:22 12/06/16 16:12 1☼m,p-Xylene ND H 0.23 mg/Kg 12/06/16 11:22 12/06/16 16:12 1☼o-Xylene ND H 0.12 mg/Kg 12/06/16 11:22 12/06/16 16:12 1☼Toluene ND H 0.70 mg/Kg 12/06/16 11:22 12/06/16 16:12 1☼Xylenes, Total ND H 0.23 mg/Kg 12/06/16 11:22 12/06/16 16:12 1☼Naphthalene ND H 1,2-Dichloroethane-d4 (Surr)106 75 -120 12/06/16 11:22 12/06/16 16:12 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)96 12/06/16 11:22 12/06/16 16:12 176-122 Dibromofluoromethane (Surr)105 12/06/16 11:22 12/06/16 16:12 180-120 Toluene-d8 (Surr)99 12/06/16 11:22 12/06/16 16:12 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND H 5.8 mg/Kg ☼12/06/16 11:22 12/06/16 16:12 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)96 41.5 -162 12/06/16 11:22 12/06/16 16:12 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 12 mg/Kg ☼12/06/16 08:26 12/06/16 16:42 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 29 mg/Kg 12/06/16 08:26 12/06/16 16:42 1☼Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 93 50 -150 12/06/16 08:26 12/06/16 16:42 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 93 12/06/16 08:26 12/06/16 16:42 150-150 TestAmerica Spokane Page 13 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Method: 8260C - Volatile Organic Compounds by GC/MS Client Sample ID: Method BlankLab Sample ID: MB 590-9889/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9906 Prep Batch: 9889 RL MDL Benzene ND 0.020 mg/Kg 12/05/16 12:29 12/06/16 09:45 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 0.10 mg/Kg 12/05/16 12:29 12/06/16 09:45 1Ethylbenzene ND 0.40 mg/Kg 12/05/16 12:29 12/06/16 09:45 1m,p-Xylene ND 0.20 mg/Kg 12/05/16 12:29 12/06/16 09:45 1o-Xylene ND 0.10 mg/Kg 12/05/16 12:29 12/06/16 09:45 1Toluene ND 0.60 mg/Kg 12/05/16 12:29 12/06/16 09:45 1Xylenes, Total ND 0.20 mg/Kg 12/05/16 12:29 12/06/16 09:45 1Naphthalene 1,2-Dichloroethane-d4 (Surr)110 75 -120 12/06/16 09:45 1 MB MB Surrogate 12/05/16 12:29 Dil FacPreparedAnalyzedQualifierLimits%Recovery 100 12/05/16 12:29 12/06/16 09:45 14-Bromofluorobenzene (Surr)76 -122 106 12/05/16 12:29 12/06/16 09:45 1Dibromofluoromethane (Surr)80 -120 96 12/05/16 12:29 12/06/16 09:45 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9889/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9890 Prep Batch: 9889 Benzene 0.500 0.511 mg/Kg 102 76 -123 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Ethylbenzene 0.500 0.504 mg/Kg 101 77 -121 m,p-Xylene 0.500 0.506 mg/Kg 101 78 -124 o-Xylene 0.500 0.513 mg/Kg 103 77 -129 Toluene 0.500 0.520 mg/Kg 104 77 -125 Naphthalene 0.500 0.466 mg/Kg 93 55 -128 1,2-Dichloroethane-d4 (Surr)75 -120 Surrogate 111 LCS LCS Qualifier Limits%Recovery 934-Bromofluorobenzene (Surr)76 -122 104Dibromofluoromethane (Surr)80 -120 97Toluene-d8 (Surr)80 -120 Client Sample ID: Method BlankLab Sample ID: MB 590-9913/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9903 Prep Batch: 9913 RL MDL Benzene ND 0.020 mg/Kg 12/06/16 11:22 12/06/16 09:49 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 0.10 mg/Kg 12/06/16 11:22 12/06/16 09:49 1Ethylbenzene ND 0.40 mg/Kg 12/06/16 11:22 12/06/16 09:49 1m,p-Xylene ND 0.20 mg/Kg 12/06/16 11:22 12/06/16 09:49 1o-Xylene ND 0.10 mg/Kg 12/06/16 11:22 12/06/16 09:49 1Toluene ND 0.60 mg/Kg 12/06/16 11:22 12/06/16 09:49 1Xylenes, Total ND 0.20 mg/Kg 12/06/16 11:22 12/06/16 09:49 1Naphthalene 1,2-Dichloroethane-d4 (Surr)92 75 -120 12/06/16 09:49 1 MB MB Surrogate 12/06/16 11:22 Dil FacPreparedAnalyzedQualifierLimits%Recovery TestAmerica Spokane Page 14 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Method: 8260C - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Method BlankLab Sample ID: MB 590-9913/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9903 Prep Batch: 9913 4-Bromofluorobenzene (Surr)95 76 -122 12/06/16 09:49 1 MB MB Surrogate 12/06/16 11:22 Dil FacPreparedAnalyzedQualifierLimits%Recovery 98 12/06/16 11:22 12/06/16 09:49 1Dibromofluoromethane (Surr)80 -120 99 12/06/16 11:22 12/06/16 09:49 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9913/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9903 Prep Batch: 9913 Benzene 0.500 0.504 mg/Kg 101 76 -123 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Ethylbenzene 0.500 0.516 mg/Kg 103 77 -121 m,p-Xylene 0.500 0.503 mg/Kg 101 78 -124 o-Xylene 0.500 0.500 mg/Kg 100 77 -129 Toluene 0.500 0.512 mg/Kg 102 77 -125 Naphthalene 0.500 0.506 mg/Kg 101 55 -128 1,2-Dichloroethane-d4 (Surr)75 -120 Surrogate 92 LCS LCS Qualifier Limits%Recovery 1014-Bromofluorobenzene (Surr)76 -122 93Dibromofluoromethane (Surr)80 -120 99Toluene-d8 (Surr)80 -120 Client Sample ID: Site-3 : B-6 (8-8.25)Lab Sample ID: 590-5133-23 DU Matrix: Solid Prep Type: Total/NA Analysis Batch: 9903 Prep Batch: 9913 Benzene ND H ND mg/Kg NC 20☼ Analyte DU DU DUnitResultQualifier Sample Result Sample Qualifier LimitRPD RPD Ethylbenzene ND H ND mg/Kg NC 20☼ m,p-Xylene ND H ND mg/Kg NC 20☼ o-Xylene ND H ND mg/Kg NC 20☼ Toluene ND H ND mg/Kg NC 20☼ Xylenes, Total ND H ND mg/Kg NC 20☼ Naphthalene ND H ND mg/Kg NC 20☼ 1,2-Dichloroethane-d4 (Surr)75 -120 Surrogate 104 DU DU Qualifier Limits%Recovery 974-Bromofluorobenzene (Surr)76 -122 104Dibromofluoromethane (Surr)80 -120 102Toluene-d8 (Surr)80 -120 Client Sample ID: Method BlankLab Sample ID: MB 590-9939/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 9939 RL MDL Benzene ND 0.20 ug/L 12/08/16 01:41 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier TestAmerica Spokane Page 15 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Method: 8260C - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Method BlankLab Sample ID: MB 590-9939/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 9939 RL MDL Ethylbenzene ND 1.0 ug/L 12/08/16 01:41 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 2.0 ug/L 12/08/16 01:41 1m,p-Xylene ND 1.0 ug/L 12/08/16 01:41 1o-Xylene ND 1.0 ug/L 12/08/16 01:41 1Toluene ND 3.0 ug/L 12/08/16 01:41 1Xylenes, Total ND 2.0 ug/L 12/08/16 01:41 1Naphthalene 1,2-Dichloroethane-d4 (Surr)113 70 -125 12/08/16 01:41 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 97 12/08/16 01:41 14-Bromofluorobenzene (Surr)69 -120 110 12/08/16 01:41 1Dibromofluoromethane (Surr)80 -120 96 12/08/16 01:41 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9939/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 9939 Benzene 10.0 9.69 ug/L 97 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Ethylbenzene 10.0 9.85 ug/L 99 80 -120 m,p-Xylene 10.0 10.4 ug/L 104 80 -120 o-Xylene 10.0 10.3 ug/L 103 80 -120 Toluene 10.0 10.1 ug/L 101 80 -123 Naphthalene 10.0 7.99 ug/L 80 63 -124 1,2-Dichloroethane-d4 (Surr)70 -125 Surrogate 112 LCS LCS Qualifier Limits%Recovery 1014-Bromofluorobenzene (Surr)69 -120 106Dibromofluoromethane (Surr)80 -120 98Toluene-d8 (Surr)80 -120 Client Sample ID: Method BlankLab Sample ID: MB 590-9977/10 Matrix: Water Prep Type: Total/NA Analysis Batch: 9977 RL MDL Benzene ND 0.20 ug/L 12/09/16 15:10 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 1.0 ug/L 12/09/16 15:10 1Ethylbenzene ND 2.0 ug/L 12/09/16 15:10 1m,p-Xylene ND 1.0 ug/L 12/09/16 15:10 1o-Xylene ND 1.0 ug/L 12/09/16 15:10 1Toluene ND 3.0 ug/L 12/09/16 15:10 1Xylenes, Total ND 2.0 ug/L 12/09/16 15:10 1Naphthalene 1,2-Dichloroethane-d4 (Surr)115 70 -125 12/09/16 15:10 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 98 12/09/16 15:10 14-Bromofluorobenzene (Surr)69 -120 TestAmerica Spokane Page 16 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Method: 8260C - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Method BlankLab Sample ID: MB 590-9977/10 Matrix: Water Prep Type: Total/NA Analysis Batch: 9977 Dibromofluoromethane (Surr)106 80 -120 12/09/16 15:10 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 94 12/09/16 15:10 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9977/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 9977 Benzene 10.0 11.6 ug/L 116 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Ethylbenzene 10.0 10.3 ug/L 103 80 -120 m,p-Xylene 10.0 10.8 ug/L 108 80 -120 o-Xylene 10.0 10.4 ug/L 104 80 -120 Toluene 10.0 10.1 ug/L 101 80 -123 Naphthalene 10.0 10.7 ug/L 107 63 -124 1,2-Dichloroethane-d4 (Surr)70 -125 Surrogate 108 LCS LCS Qualifier Limits%Recovery 1044-Bromofluorobenzene (Surr)69 -120 102Dibromofluoromethane (Surr)80 -120 94Toluene-d8 (Surr)80 -120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) Client Sample ID: Method BlankLab Sample ID: MB 590-9889/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9907 Prep Batch: 9889 RL MDL Gasoline ND 5.0 mg/Kg 12/05/16 12:29 12/06/16 09:45 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)100 41.5 -162 12/06/16 09:45 1 MB MB Surrogate 12/05/16 12:29 Dil FacPreparedAnalyzedQualifierLimits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9889/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9907 Prep Batch: 9889 Gasoline 50.0 55.0 mg/Kg 110 74.4 -124 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits 4-Bromofluorobenzene (Surr)41.5 -162 Surrogate 99 LCS LCS Qualifier Limits%Recovery TestAmerica Spokane Page 17 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) (Continued) Client Sample ID: Method BlankLab Sample ID: MB 590-9913/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9905 Prep Batch: 9913 RL MDL Gasoline ND 5.0 mg/Kg 12/06/16 11:22 12/06/16 09:49 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)95 41.5 -162 12/06/16 09:49 1 MB MB Surrogate 12/06/16 11:22 Dil FacPreparedAnalyzedQualifierLimits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9913/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9905 Prep Batch: 9913 Gasoline 50.0 50.3 mg/Kg 101 74.4 -124 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits 4-Bromofluorobenzene (Surr)41.5 -162 Surrogate 97 LCS LCS Qualifier Limits%Recovery Client Sample ID: Site-3 : B-6 (8-8.25)Lab Sample ID: 590-5133-23 DU Matrix: Solid Prep Type: Total/NA Analysis Batch: 9905 Prep Batch: 9913 Gasoline ND H ND mg/Kg NC 32.3☼ Analyte DU DU DUnitResultQualifier Sample Result Sample Qualifier LimitRPD RPD 4-Bromofluorobenzene (Surr)41.5 -162 Surrogate 97 DU DU Qualifier Limits%Recovery Client Sample ID: Method BlankLab Sample ID: MB 590-9940/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 9940 RL MDL Gasoline ND 100 ug/L 12/08/16 01:41 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)97 68.7 -141 12/08/16 01:41 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9940/1004 Matrix: Water Prep Type: Total/NA Analysis Batch: 9940 Gasoline 1000 1050 ug/L 105 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits 4-Bromofluorobenzene (Surr)68.7 -141 Surrogate 101 LCS LCS Qualifier Limits%Recovery TestAmerica Spokane Page 18 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) Client Sample ID: Method BlankLab Sample ID: MB 590-9902/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9910 Prep Batch: 9902 RL MDL Diesel Range Organics (DRO) (C10-C25) ND 10 mg/Kg 12/06/16 08:26 12/06/16 10:13 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 25 mg/Kg 12/06/16 08:26 12/06/16 10:13 1Residual Range Organics (RRO) (C25-C36) o-Terphenyl 96 50 -150 12/06/16 10:13 1 MB MB Surrogate 12/06/16 08:26 Dil FacPreparedAnalyzedQualifierLimits%Recovery 90 12/06/16 08:26 12/06/16 10:13 1n-Triacontane-d62 50 -150 Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9902/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 9910 Prep Batch: 9902 Diesel Range Organics (DRO) (C10-C25) 67.1 61.1 mg/Kg 91 50 -150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Residual Range Organics (RRO) (C25-C36) 66.8 63.2 mg/Kg 95 50 -150 o-Terphenyl 50 -150 Surrogate 94 LCS LCS Qualifier Limits%Recovery 92n-Triacontane-d62 50 -150 Client Sample ID: Method BlankLab Sample ID: MB 590-9914/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 9910 Prep Batch: 9914 RL MDL Diesel Range Organics (DRO) (C10-C25) ND 0.12 mg/L 12/06/16 11:30 12/06/16 17:15 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 0.20 mg/L 12/06/16 11:30 12/06/16 17:15 1Residual Range Organics (RRO) (C25-C36) o-Terphenyl 92 50 -150 12/06/16 17:15 1 MB MB Surrogate 12/06/16 11:30 Dil FacPreparedAnalyzedQualifierLimits%Recovery 91 12/06/16 11:30 12/06/16 17:15 1n-Triacontane-d62 50 -150 Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9914/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 9910 Prep Batch: 9914 Diesel Range Organics (DRO) (C10-C25) 1.61 1.39 mg/L 86 50 -150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Residual Range Organics (RRO) (C25-C36) 1.60 1.50 mg/L 94 50 -150 o-Terphenyl 50 -150 Surrogate 95 LCS LCS Qualifier Limits%Recovery TestAmerica Spokane Page 19 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-9914/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 9910 Prep Batch: 9914 n-Triacontane-d62 50 -150 Surrogate 95 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 590-9914/3-A Matrix: Water Prep Type: Total/NA Analysis Batch: 9910 Prep Batch: 9914 Diesel Range Organics (DRO) (C10-C25) 1.61 2.40 *mg/L 149 50 -150 54 25 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec. Limits LimitRPD RPD Residual Range Organics (RRO) (C25-C36) 1.60 1.59 mg/L 99 50 -150 6 25 o-Terphenyl 50 -150 Surrogate 109 LCSD LCSD Qualifier Limits%Recovery 101n-Triacontane-d62 50 -150 TestAmerica Spokane Page 20 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Lab Chronicle Client: GeoEngineers Inc TestAmerica Job ID: 590-5133-1 Project/Site: Kittitas County Shop 0504-119-00 Client Sample ID: Site-3:B-1 (4.5-4.75)Lab Sample ID: 590-5133-2 Matrix: SolidDate Collected: 12/02/16 09:20 Date Received: 12/05/16 11:55 Analysis Moisture NMI12/06/16 08:021 TAL SPK9901 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Client Sample ID: Site-3:B-1 (4.5-4.75)Lab Sample ID: 590-5133-2 Matrix: SolidDate Collected: 12/02/16 09:20 Percent Solids: 82.3Date Received: 12/05/16 11:55 Prep 5035 MRS12/05/16 15:29 TAL SPK9889 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.804 g 5 mL Analysis 8260C 4 9906 12/06/16 13:47 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 5035 9889 12/05/16 15:29 MRS TAL SPKTotal/NA 5.804 g 5 mL Analysis NWTPH-Gx 4 9907 12/06/16 13:47 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 3550C 9902 12/06/16 08:26 NMI TAL SPKTotal/NA 15.16 g 5 mL Analysis NWTPH-Dx 1 9910 12/07/16 08:39 NMI TAL SPKTotal/NA Client Sample ID: Site-3:B-1:120216 Lab Sample ID: 590-5133-4 Matrix: WaterDate Collected: 12/02/16 10:00 Date Received: 12/05/16 11:55 Analysis 8260C MRS12/08/16 05:521 TAL SPK9939 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis 8260C 1 9977 12/09/16 15:31 CBW TAL SPKTotal/NA 43 mL 43 mL Analysis NWTPH-Gx 1 9940 12/08/16 05:52 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 9914 12/06/16 11:30 NMI TAL SPKTotal/NA 217.6 mL 2 mL Analysis NWTPH-Dx 1 9910 12/06/16 19:44 NMI TAL SPKTotal/NA Client Sample ID: Site-3:B-2 (4.5-4.75)Lab Sample ID: 590-5133-6 Matrix: SolidDate Collected: 12/02/16 10:05 Date Received: 12/05/16 11:55 Analysis Moisture NMI12/06/16 08:021 TAL SPK9901 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Client Sample ID: Site-3:B-2 (4.5-4.75)Lab Sample ID: 590-5133-6 Matrix: SolidDate Collected: 12/02/16 10:05 Percent Solids: 84.4Date Received: 12/05/16 11:55 Prep 5035 MRS12/05/16 15:29 TAL SPK9889 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 4.969 g 5 mL Analysis 8260C 1 9906 12/06/16 14:09 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 5035 9889 12/05/16 15:29 MRS TAL SPKTotal/NA 4.969 g 5 mL Analysis NWTPH-Gx 1 9907 12/06/16 14:09 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 3550C 9902 12/06/16 08:26 NMI TAL SPKTotal/NA 15.21 g 5 mL TestAmerica Spokane Page 21 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Lab Chronicle Client: GeoEngineers Inc TestAmerica Job ID: 590-5133-1 Project/Site: Kittitas County Shop 0504-119-00 Client Sample ID: Site-3:B-2 (4.5-4.75)Lab Sample ID: 590-5133-6 Matrix: SolidDate Collected: 12/02/16 10:05 Percent Solids: 84.4Date Received: 12/05/16 11:55 Analysis NWTPH-Dx NMI12/07/16 08:561 TAL SPK9910 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Client Sample ID: Site-3:B-2 :120216 Lab Sample ID: 590-5133-8 Matrix: WaterDate Collected: 12/02/16 10:35 Date Received: 12/05/16 11:55 Analysis 8260C MRS12/08/16 06:131 TAL SPK9939 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 9940 12/08/16 06:13 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 9914 12/06/16 11:30 NMI TAL SPKTotal/NA 227.4 mL 2 mL Analysis NWTPH-Dx 1 9910 12/06/16 20:17 NMI TAL SPKTotal/NA Client Sample ID: Site-3 :B-3 (6.5-6.75)Lab Sample ID: 590-5133-10 Matrix: SolidDate Collected: 12/02/16 10:50 Date Received: 12/05/16 11:55 Analysis Moisture NMI12/06/16 08:021 TAL SPK9901 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Client Sample ID: Site-3 :B-3 (6.5-6.75)Lab Sample ID: 590-5133-10 Matrix: SolidDate Collected: 12/02/16 10:50 Percent Solids: 76.9Date Received: 12/05/16 11:55 Prep 5035 MRS12/05/16 15:29 TAL SPK9889 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.437 g 5 mL Analysis 8260C 1 9906 12/06/16 14:30 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 5035 9889 12/05/16 15:29 MRS TAL SPKTotal/NA 5.437 g 5 mL Analysis NWTPH-Gx 1 9907 12/06/16 14:30 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 3550C 9902 12/06/16 08:26 NMI TAL SPKTotal/NA 15.70 g 5 mL Analysis NWTPH-Dx 1 9910 12/06/16 15:34 NMI TAL SPKTotal/NA Client Sample ID: Site-3 :B-3:120216 Lab Sample ID: 590-5133-12 Matrix: WaterDate Collected: 12/02/16 11:25 Date Received: 12/05/16 11:55 Analysis 8260C MRS12/08/16 06:351 TAL SPK9939 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 9940 12/08/16 06:35 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 9914 12/06/16 11:30 NMI TAL SPKTotal/NA 229.8 mL 2 mL Analysis NWTPH-Dx 1 9910 12/06/16 20:33 NMI TAL SPKTotal/NA TestAmerica Spokane Page 22 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Lab Chronicle Client: GeoEngineers Inc TestAmerica Job ID: 590-5133-1 Project/Site: Kittitas County Shop 0504-119-00 Client Sample ID: Site-3: B-4 (6-6.25)Lab Sample ID: 590-5133-14 Matrix: SolidDate Collected: 12/02/16 11:45 Date Received: 12/05/16 11:55 Analysis Moisture NMI12/06/16 08:021 TAL SPK9901 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Client Sample ID: Site-3: B-4 (6-6.25)Lab Sample ID: 590-5133-14 Matrix: SolidDate Collected: 12/02/16 11:45 Percent Solids: 75.5Date Received: 12/05/16 11:55 Prep 5035 MRS12/05/16 15:29 TAL SPK9889 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.394 g 5 mL Analysis 8260C 1 9906 12/06/16 14:51 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 5035 9889 12/05/16 15:29 MRS TAL SPKTotal/NA 5.394 g 5 mL Analysis NWTPH-Gx 1 9907 12/06/16 14:51 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 3550C 9902 12/06/16 08:26 NMI TAL SPKTotal/NA 15.02 g 5 mL Analysis NWTPH-Dx 1 9910 12/06/16 15:51 NMI TAL SPKTotal/NA Client Sample ID: Site-3: B-5 (4.75-5)Lab Sample ID: 590-5133-16 Matrix: SolidDate Collected: 12/02/16 11:55 Date Received: 12/05/16 11:55 Analysis Moisture NMI12/06/16 08:021 TAL SPK9901 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Client Sample ID: Site-3: B-5 (4.75-5)Lab Sample ID: 590-5133-16 Matrix: SolidDate Collected: 12/02/16 11:55 Percent Solids: 85.9Date Received: 12/05/16 11:55 Prep 5035 MRS12/05/16 15:29 TAL SPK9889 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.85 g 5 mL Analysis 8260C 1 9906 12/06/16 15:12 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 5035 9889 12/05/16 15:29 MRS TAL SPKTotal/NA 5.85 g 5 mL Analysis NWTPH-Gx 1 9907 12/06/16 15:12 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3550C 9902 12/06/16 08:26 NMI TAL SPKTotal/NA 15.35 g 5 mL Analysis NWTPH-Dx 1 9910 12/06/16 16:08 NMI TAL SPKTotal/NA Client Sample ID: Site-3: B-5 :120216 Lab Sample ID: 590-5133-18 Matrix: WaterDate Collected: 12/02/16 12:40 Date Received: 12/05/16 11:55 Analysis 8260C MRS12/08/16 06:571 TAL SPK9939 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 9940 12/08/16 06:57 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 9914 12/06/16 11:30 NMI TAL SPKTotal/NA 232.9 mL 2 mL Analysis NWTPH-Dx 1 9910 12/06/16 20:49 NMI TAL SPKTotal/NA TestAmerica Spokane Page 23 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Lab Chronicle Client: GeoEngineers Inc TestAmerica Job ID: 590-5133-1 Project/Site: Kittitas County Shop 0504-119-00 Client Sample ID: Site-3: B-7 (6-6.25)Lab Sample ID: 590-5133-22 Matrix: SolidDate Collected: 12/02/16 13:25 Date Received: 12/05/16 11:55 Analysis Moisture NMI12/06/16 08:021 TAL SPK9901 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Client Sample ID: Site-3: B-7 (6-6.25)Lab Sample ID: 590-5133-22 Matrix: SolidDate Collected: 12/02/16 13:25 Percent Solids: 74.1Date Received: 12/05/16 11:55 Prep 5035 MRS12/06/16 11:22 TAL SPK9913 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 5.20 g 5 mL Analysis 8260C 1 9903 12/06/16 15:51 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 5035 9913 12/06/16 11:22 MRS TAL SPKTotal/NA 5.20 g 5 mL Analysis NWTPH-Gx 1 9905 12/06/16 15:51 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 3550C 9902 12/06/16 08:26 NMI TAL SPKTotal/NA 15.54 g 5 mL Analysis NWTPH-Dx 1 9910 12/06/16 16:25 NMI TAL SPKTotal/NA Client Sample ID: Site-3 : B-6 (8-8.25)Lab Sample ID: 590-5133-23 Matrix: SolidDate Collected: 12/02/16 13:00 Date Received: 12/05/16 11:55 Analysis Moisture NMI12/06/16 08:021 TAL SPK9901 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Client Sample ID: Site-3 : B-6 (8-8.25)Lab Sample ID: 590-5133-23 Matrix: SolidDate Collected: 12/02/16 13:00 Percent Solids: 81.8Date Received: 12/05/16 11:55 Prep 5035 MRS12/06/16 11:22 TAL SPK9913 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 6.51 g 5 mL Analysis 8260C 1 9903 12/06/16 16:12 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 5035 9913 12/06/16 11:22 MRS TAL SPKTotal/NA 6.51 g 5 mL Analysis NWTPH-Gx 1 9905 12/06/16 16:12 MRS TAL SPKTotal/NA 0.86 mL 43 mL Prep 3550C 9902 12/06/16 08:26 NMI TAL SPKTotal/NA 15.66 g 5 mL Analysis NWTPH-Dx 1 9910 12/06/16 16:42 NMI TAL SPKTotal/NA Laboratory References: TAL SPK = TestAmerica Spokane, 11922 East 1st Ave, Spokane, WA 99206, TEL (509)924-9200 TestAmerica Spokane Page 24 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Certification Summary Client: GeoEngineers Inc TestAmerica Job ID: 590-5133-1 Project/Site: Kittitas County Shop 0504-119-00 Laboratory: TestAmerica Spokane All certifications held by this laboratory are listed. Not all certifications are applicable to this report. Authority Program EPA Region Certification ID Expiration Date Alaska (UST)UST-07110State Program 10-31-17 Washington State Program 10 C569 01-06-17 TestAmerica Spokane Page 25 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Method Summary TestAmerica Job ID: 590-5133-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop 0504-119-00 Method Method Description LaboratoryProtocol SW8468260CVolatile Organic Compounds by GC/MS TAL SPK NWTPHNWTPH-Gx Northwest - Volatile Petroleum Products (GC/MS)TAL SPK NWTPHNWTPH-Dx Northwest - Semi-Volatile Petroleum Products (GC)TAL SPK EPAMoisturePercent Moisture TAL SPK Protocol References: EPA = US Environmental Protection Agency NWTPH = Northwest Total Petroleum Hydrocarbon SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: TAL SPK = TestAmerica Spokane, 11922 East 1st Ave, Spokane, WA 99206, TEL (509)924-9200 TestAmerica Spokane Page 26 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 Page 27 of 30 12/12/2016 1234567 8 9 10 11 12 Page 28 of 30 12/12/2016 1234567 8 9 10 11 12 Page 29 of 30 12/12/2016 1234567 8 9 10 11 12 Login Sample Receipt Checklist Client: GeoEngineers Inc Job Number: 590-5133-1 Login Number: 5133 Question Answer Comment Creator: Kratz, Sheila J List Source: TestAmerica Spokane List Number: 1 N/ARadioactivity wasn't checked or is </= background as measured by a survey meter. Lab does not accept radioactive samples. N/AThe cooler's custody seal, if present, is intact. N/ASample custody seals, if present, are intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. TrueSamples were received on ice. TrueCooler Temperature is acceptable. TrueCooler Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. TrueIs the Field Sampler's name present on COC? TrueThere are no discrepancies between the containers received and the COC. TrueSamples are received within Holding Time (excluding tests with immediate HTs) TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. TrueSample bottles are completely filled. TrueSample Preservation Verified. TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs TrueContainers requiring zero headspace have no headspace or bubble is <6mm (1/4"). TrueMultiphasic samples are not present. TrueSamples do not require splitting or compositing. N/AResidual Chlorine Checked. TestAmerica Spokane Page 30 of 30 12/12/2016 1 2 3 4 5 6 7 8 9 10 11 12 APPENDIX C Report Limitations and Guidelines for Use December 29, 2016 | Page C-1 File No. 0504-119-00 APPENDIX C REPORT LIMITATIONS AND GUIDELINES FOR USE 1 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 This report has been prepared for the exclusive use of the Washington State Department of Ecology (Ecology). This report is not intended for use by others, and the information contained herein is not applicable to other sites. GeoEngineers structures our services to meet the specific needs of our clients. For example, an environmental site assessment 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 project site. No one except Ecology should rely on this environmental report without first conferring with GeoEngineers. This report should not be applied 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 Kittitas County Lower Shop site located at 505 West 14th Avenue in Ellensburg, 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, do not 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 after the date of this report, GeoEngineers should be given the opportunity to review our interpretations and recommendations and provide written modifications or confirmation, as appropriate. Reliance Conditions for Third Parties Our report was prepared for the exclusive use of Ecology. No other party may rely on the product of our services unless we agree in advance to such reliance in writing. This is to provide our firm and Ecology 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 Ecology and generally accepted environmental practices in this area at the time this report was prepared. 1 Developed based on material provided by ASFE, Professional Firms Practicing in the Geosciences; www.asfe.org. December 29, 2016 | Page C-2 File No. 0504-119-00 Environmental Regulations are Always Evolving Some substances may be present in the site vicinity in quantities or under conditions that may have led, or may lead, to contamination of the subject site, 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 substance, change or if more stringent environmental standards are developed in the future. Uncertainty May Remain Even After This Phase II ESA is Completed No ESA can wholly eliminate uncertainty regarding the potential for contamination in connection with a property. 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. 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 manmade events such as construction on or adjacent to the site, by new releases of hazardous substances, or by natural events such as floods, earthquakes, slope instability or groundwater fluctuations. Always contact GeoEngineers before applying this report to determine if it is still applicable. 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 site. Site exploration identifies subsurface conditions only at those points where subsurface tests are conducted or samples are taken. GeoEngineers reviewed field and laboratory data and then applied our professional judgment to render an opinion about subsurface conditions throughout the site. 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. Do Not Redraw the Exploration Logs Environmental scientists prepare final boring and testing logs based upon their interpretation of field logs and laboratory data. To prevent errors or omissions, the logs included in an environmental report should never be redrawn for inclusion in other design drawings. Only photographic or electronic reproductions are acceptable, but recognize that separating logs from the report can elevate risk. Read These Provisions Closely Some clients, design professionals and contractors may not recognize that the geoscience practices (geotechnical engineering, geology and environmental science) are far less exact than other engineering and natural science disciplines. This lack of understanding can create unrealistic 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 are unclear how these “Report Limitations and Guidelines for Use” apply to your project or site. December 29, 2016 | Page C-3 File No. 0504-119-00 Geotechnical, Geologic and Geoenvironmental Reports Should Not be Interchanged The equipment, techniques and personnel used to perform an environmental study differ significantly from those used to perform a geotechnical or geologic study and vice versa. For that reason, a geotechnical engineering or geologic report does not usually relate any environmental findings, conclusions or recommendations; e.g., about the likelihood of encountering underground storage tanks or regulated contaminants. Similarly, environmental reports are not used to address geotechnical or geologic concerns regarding a specific project. 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. If Ecology desires these specialized services, they should be obtained from a consultant who offers services in this specialized field. Have we delivered World Class Client Service? Please let us know by visiting www.geoengineers.com/feedback. Second Quarter Groundwater Monitoring Model Remedy LUST Sites Kittitas County Lower Shop 505 West 14th Avenue Ellensburg, Washington for Washington State Department of Ecology June 29, 2017 Second Quarter Groundwater Monitoring Model Remedy LUST Sites Kittitas County Lower Shop 505 West 14th Avenue Ellensburg, Washington for Washington State Department of Ecology June 29, 2017 523 East Second Avenue Spokane, Washington 99202 509.363.3125 Second Quarter Groundwater Monitoring Model Remedy LUST Sites Kittitas County Lower Shop 505 West 14th Avenue Ellensburg, Washington File No. 0504-119-00 June 29, 2017 Prepared for: Washington State Department of Ecology Toxics Cleanup Program – Central Region Office 1250 West Alder Street Union Gap, Washington 98903 Attention: Jeff Newschwander Prepared by: GeoEngineers, Inc. 523 East Second Avenue Spokane, Washington 99202 509.363.3125 Scott H. Lathen, PE Environmental Engineer Bruce D. Williams Principal SHL:BDW:tjh 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. June 29, 2017 | Page i File No. 0504-119-00 Table of Contents 1.0 INTRODUCTION ............................................................................................................................................... 1 2.0 PREVIOUS ASSESSMENT ............................................................................................................................... 1 3.0 SCOPE OF SERVICES ...................................................................................................................................... 1 4.0 FIELD ACTIVITIES ............................................................................................................................................ 2 4.1. Groundwater Sampling ............................................................................................................................... 2 5.0 CHEMICAL ANALYTICAL RESULTS ................................................................................................................. 3 5.1. Groundwater Chemical Analytical Results................................................................................................. 3 6.0 SUMMARY, CONCLUSIONS AND RECOMMENDATIONS ............................................................................... 4 7.0 LIMITATIONS ................................................................................................................................................... 5 8.0 REFERENCES .................................................................................................................................................. 5 LIST OF FIGURES Figure 1. Vicinity Map Figure 2. Site Plan and May 2017 Groundwater Elevations APPENDICES Appendix A. Field Procedures Appendix B. Chemical Analytical Laboratory Reports Appendix C. Report Limitations and Guidelines for Use June 29, 2017 | Page 1 File No. 0504-119-00 1.0 INTRODUCTION This report describes second quarter 2017 groundwater monitoring activities conducted at the Kittitas County Lower Shop site located at 505 West 14th Avenue in Ellensburg, Washington (herein referred to as “site”). The approximate site location is shown in the attached Vicinity Map, Figure 1. Site environmental activities are managed by the Washington State Department of Ecology (Ecology). This report describes field activities, observations and chemical analytical results associated with groundwater samples collected at the site. The purpose of the overall assessment activities associated with this project was to further define the extent of soil and groundwater contamination beneath the site associated with former underground storage tank (UST) operation. 2.0 PREVIOUS ASSESSMENT GeoEngineers conducted a soil and groundwater assessment on December 1, 2016 (GeoEngineers 2016). Benzene and gasoline-range petroleum hydrocarbons (GRPH) were detected in soil samples collected from borings B-1 and B-2 at concentrations greater than the Washington State Model Toxics Control Act (MTCA) Method A unrestricted land use cleanup levels. GRPH, diesel- and oil-range petroleum hydrocarbons (DRPH and ORPH, respectively) also exceeded MTCA Method A cleanup levels from a grab groundwater sample collected from soil boring B-1. Boring locations are shown in the attached Site Plan and May 2017 Groundwater Elevations, Figure 2. A prior environmental report (Terragraphics 2014) for the site identified one existing groundwater monitoring well on the property. This well was located during the December 2016 site assessment, and three additional wells were located. The four existing well locations (MW-1, MW-4 through MW-6) were re-labeled in the field as shown on Figure 2. Two additional wells (MW-2 and MW-3) were installed during our recent assessment activities for a total of six groundwater monitoring wells on site. The first quarter 2017 groundwater monitoring event (GeoEngineers 2017) was conducted in March 2017. GRPH, benzene and total xylenes were detected in the monitoring well MW-2 sample; however, the reported concentrations did not exceed MTCA Method A cleanup levels. 3.0 SCOPE OF SERVICES The scope of services included the following: 1. Coordinate subcontractors (TestAmerica Laboratories, Inc. [TestAmerica]) and provide project management services. 2. Performing the second quarterly groundwater monitoring event. Water quality parameters (pH, temperature, oxidation-reduction potential [ORP], turbidity, dissolved oxygen [DO] and conductivity) were measured and documented while purging each well. Six groundwater samples were collected from the four existing wells (MW-1 and MW-4 through MW-6) and the two recently installed monitoring wells (MW-2 and MW-3); one duplicate groundwater sample was collected from well MW-3. Groundwater samples were submitted to TestAmerica for the following laboratory analyses: June 29, 2017 | Page 2 File No. 0504-119-00 a. Benzene, toluene, ethylbenzene, total xylenes (BTEX) and methyl tert-butyl ether (MTBE) using EPA Method 8260C; b. GRPH using Method NWTPH-Gx; and c. DRPH and ORPH using Method NWTPH-Dx. 3. Measuring depth to groundwater and calculated relative groundwater elevations to estimate groundwater flow direction and gradient. 4. Drumming and labeling investigation-derived waste (IDW). A qualified contractor will be retained to profile and transport the IDW for disposal at a permitted facility. We assume that IDW disposal for the site will be completed in a single “milk run” at the conclusion of the site assessments. 5. Entering the analytical data into Ecology’s Environmental Information Management (EIM) database. 6. Preparing this monitoring report. 4.0 FIELD ACTIVITIES 4.1. Groundwater Sampling Groundwater samples were collected from monitoring wells (MW-1 through MW-6) on May 12, 2017. Depth to groundwater, measured from the top of the PVC well casings, ranged from approximately 3.76 feet (MW-2) to 4.95 feet (MW-6). Groundwater elevations ranged from approximately 1569.56 feet in monitoring well MW-5 to 1573.68 feet in monitoring well MW-1. Depth to water and groundwater elevations are presented in Table 1 below. Monitoring wells MW-1 through MW-6 were purged and sampled using low-flow sampling techniques. A peristaltic pump equipped with disposable tubing was used to purge and sample each well. Groundwater quality parameters generally were measured at 3-minute intervals during well purging. Groundwater samples were collected when each water quality parameter had stabilized in conformance with the criteria presented in Appendix A or a maximum purge time of 30 minutes was achieved. Field methods are described in Appendix A. A duplicate sample was collected from monitoring well MW-3. Based on groundwater elevations measured on May 12, 2017, groundwater flow generally was toward the southwest, as depicted in Figure 2. Excluding data from well MW-5, the estimated hydraulic groundwater gradient across the site was about 0.005 feet per foot (which is approximately 26 feet per mile). Groundwater elevations decrease toward the southwest near MW-5. Including data from well MW-5, the estimated groundwater gradient is 0.0118 feet per foot, which is approximately 62.5 feet per mile. Groundwater elevation contours provided on Figure 2 were based on depth to water measurements, surveyed elevations of well casings, Surfer Version 1.2 modeling, and our hydrogeological interpretation. Relatively low DO and ORP levels at MW-2, within the former UST basin indicate the potential reducing conditions that support bioremediation. The ORP levels in the upgradient well (MW-1) and downgradient wells (MW-5 and MW-6), are elevated; as is ORP in MW-3 which is closer but cross-gradient to the former UST area. DO is high in MW-1 and MW-6, moderately high in MW-3 and low in MW-4 and MW-5, possibly indicating an anaerobic zone extending from MW-2 to MW-5. June 29, 2017 | Page 3 File No. 0504-119-00 Groundwater samples were submitted to TestAmerica for chemical analysis using the methods described in “Section 3.0” and chemical analytical results are discussed in “Section 5.0.” Purge water generated during groundwater sampling was drummed with the water generated during previous well development/purging. TABLE 1. DEPTH TO GROUNDWATER AND GROUNDWATER QUALITY PARAMETERS Monitoring Well Depth to Water and Field Measured Natural Attenuation Parameters Depth to Water (feet) Groundwater Elevation (feet) pH (pH units) Specific Conductivity (mS/cm) ORP (mV) Dissolved Oxygen (mg/L) Turbidity1 (NTU) Temperature (degrees C) MW-1 3.96 1573.68 7.09 5.78 94.8 5.31 6.4 11.9 MW-2 3.76 1573.32 6.76 7.87 -44.4 0.11 4.5 11.3 MW-3 3.88 1573.14 6.82 7.97 88.4 1.00 4.3 11.5 MW-4 4.41 1572.31 7.03 0.824 13.3 0.22 14.4 14.3 MW-5 4.67 1569.56 7.08 1.167 87.1 0.77 6.4 11.3 MW-6 4.95 1571.52 7.32 0.587 90.3 3.77 3.4 10.9 Notes: 1Turbidity is not a natural attenuation parameter but was measured in the field to evaluate groundwater stabilization. 2 Groundwater elevations calculated using the formula: Groundwater Elevation = Top of Casing Elevation - Depth to Water mS/cm = milliSiemens per centimeter; mV = millivolts; mg/L = milligrams per liter; NTU = nephelometric turbidity units 5.0 CHEMICAL ANALYTICAL RESULTS 5.1. Groundwater Chemical Analytical Results Six groundwater samples, and one duplicate, were submitted from monitoring wells MW-1 through MW-6 to TestAmerica for the chemical analyses described in “Section 3.0 Scope of Services.” The duplicate sample was collected from monitoring well MW-3. TestAmerica’s laboratory report is included in Appendix B; chemical analytical results are summarized and compared to MTCA Method A cleanup levels for unrestricted land use in Table 2, and summarized below. GRPH was detected in the groundwater sample collected from monitoring well MW-2 at a concentration less than the MTCA Method A cleanup level. Other analytes were not detected at concentrations greater than the laboratory reporting limits. June 29, 2017 | Page 4 File No. 0504-119-00 TABLE 2. SUMMARY OF CHEMICAL ANALYTICAL RESULTS Sample Number Petroleum- Range Hydrocarbons Volatile Organic Compounds (µg/L)4 GRPH2 (µg/L) DRPH3 (mg/L) ORPH3 (mg/L) Benzene Toluene Ethyl- benzene o-Xylene m,p-Xylenes3 Total Xylenes3 MTBE MW-1:033117 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-1:051217 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-2:033117 490 <0.26 <0.43 1.5 <1.0 3.3 <1.0 4.6 5.4 <1.0 MW-2:051217 200 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-3:033117 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-3:051217 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 DUP:051217 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-4:033117 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-4:051217 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-5:033117 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-5:051217 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-6:033117 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MW-6:051217 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 MTCA Method A Cleanup Levels 1000/8004 0.500 0.500 5 1,000 700 1,0006 20 Notes: 1Chemical analyses completed by TestAmerica Laboratories, Inc. located in Spokane Valley, Washington. 2GRPH were analyzed by Northwest Method NWTPH-Gx. 3DRPH and ORPH were analyzed by Northwest Method NWTPH-Dx 4BTEX and MTBE were analyzed by EPA 8260. 5Cleanup level for gasoline-range petroleum hydrocarbons is 1,000 µg/L if benzene is not detected; otherwise the cleanup level is 800 µg/L. 6Cleanup level for total xylenes (o-xylene and m,p-xylene) is 1,000 µg/L. Concentrations were summed to determine compliance. µg/L = micrograms per liter Bold indicates the contaminant was detected at a concentration greater than the laboratory reporting limits. 6.0 SUMMARY, CONCLUSIONS AND RECOMMENDATIONS Groundwater monitoring was conducted on May 12, 2017 at the Kittitas County Shop located at 505 West 14th Avenue in Ellensburg, Washington. Six groundwater samples collected from monitoring wells MW-1 through MW-6 were submitted for GRPH, BTEX, MTBE, DRPH and ORPH analysis. GRPH was detected in the groundwater sample collected from monitoring well MW-2 at concentrations less than the MTCA Method A cleanup level. We recommend continuing groundwater monitoring for at least two additional June 29, 2017 | Page 5 File No. 0504-119-00 quarters (assuming contaminant concentrations are not detected greater than MTCA cleanup levels) to obtain a data set spanning four consecutive quarters. 7.0 LIMITATIONS We have prepared this report for the exclusive use of Ecology and their authorized agents. Within the limitations of scope, schedule and budget, our services have been executed in accordance with generally accepted environmental science practices in this area at the time this report was prepared. The conclusions and opinions presented in this report are based on our professional knowledge, judgment and experience. 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 should be considered 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 “Report Limitations and Guidelines for Use,” Appendix C, for additional information pertaining to use of this report. 8.0 REFERENCES GeoEngineers, Inc. 2016. “Data Gap Investigation.” GEI No. December 16, 2016. GeoEngineers, Inc. 2017. “Supplemental Data Gap Investigation.” GEI No. June 26, 2017. Puls, R. W. and M.J. Barcelona. 1996. “Low-flow (Minimal Drawdown) Ground-water Sampling Procedures.” EPA Ground Water Issue. April. p.1-9. TerraGraphics Environmental Engineering, Inc., 2014. Limited Phase II Environmental Site Assessment Report, Lower County Shop, Ellensburg, Washington, prepared for U.S. Environmental Protection Agency. April 11, 2014. U.S. Environmental Protection Agency, Region 1. “Low Stress (Low-Flow) Purging and Sampling Procedure for the Collection of Groundwater Samples from Monitoring Wells.” EPA SOP No. GW 01, Revised January 19, 2010. FIGURES µ SITE Vicinity Map Figure 1 Kittitas County Lower Shop505 West 14th AvenueEllensburg, Washington 2,000 2,0000 Feet Data Source: Mapbox Open Street Map, 2016 Notes: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. 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 this communication. Projection: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet P:\0\0504119\GIS\MXDs\050411900_F01_VM.mxd Date Exported: 10/25/16 by ccabrera Notes:1. The locations of all features shown are approximate.2. This drawing is for information purposes. It is intended to assist in showingfeatures discussed in an attached document. GeoEngineers, Inc. cannotguarantee the accuracy and content of electronic files. The master file is storedby GeoEngineers, Inc. and will serve as the official record of this communication.3. GRPH = Gasoline-range petroleum hydrocarbons Data Source: Aerial image from ESRI Data Online.Legend@<{Previous Boring Numberand Approximate Location@Ñ{Boring Number andApproximate LocationInferred Ground Elevation Contours (feet)May 12, 2017Inferred GroundwaterFlow DirectionFormer UST Approximate Location(Terragraphics 2013)Existing Monitoring WellsApproximate LocationMonitoring Wells Installed byGeoEngineers (March 2017)Approximate LocationP:\0\0504119\GIS\MXDs\050411900_F02_GW_May2017.mxd Date Exported: 06/28/17 by cvoss @<{@<{@<{@Ñ{@Ñ{@Ñ{@Ñ{@Ñ{@Ñ{@Ñ{!{W 15th AveN Okanogan St IDWStorageMW-21573.32MW-31573.14MW-11573.68MW-41572.31MW-51569.56MW-61571.52B-1B-2B-3B-4B-5B-6B-7BH-24BH-25BH-26157015711573 1572Projection: NAD 1983 HARN StatePlane Washington South FIPS 4602 FeetSite Plan and May 2017Groundwater ElevationsKittitas County Lower Shop505 West 14th AvenueEllensburg, WashingtonFigure 2μ60 0 60FeetWell IDGRPH Concentration μg/LMW-1 <150MW-2200MW-3 <150MW-4 <150MW-5 <150MW-6 <150 APPENDICES APPENDIX A Field Procedures June 29, 2017 | Page A-1 File No. 0504-119-00 APPENDIX A FIELD PROCEDURES General Groundwater was sampled at the Kittitas County Lower Shop site on May 12, 2017, at the monitoring well locations shown on Figure 2. Field methods generally were performed in compliance with the project Work Plan assessment procedures. Groundwater Sampling Groundwater samples from these wells were collected on May 12, 2017. Groundwater Depths Depths to groundwater were measured relative to the north side of the monitoring well casing rims using an electric water-level indicator. The probe of the water-level indicator was decontaminated between wells with a detergent wash, followed by two distilled water rinses. Low-Flow Sampling Procedures Groundwater sampling was performed consistent with the EPA’s low-flow groundwater sampling procedure, as described by EPA (2010) and Puls and Barcelona (1996). Monitoring wells were purged using a peristaltic pump equipped with disposable tubing. During purging activities, water quality parameters, including pH, conductivity, temperature, turbidity, ORP and DO, were measured using a YSI Pro multi-parameter meter equipped with a flow-through cell; measurements were recorded approximately every 3 minutes. The meter calibration was verified at the beginning of each work day consistent with manufacturer recommendations prior to purging and sampling activities. Groundwater samples were collected after: (1) water quality parameters had stabilized; or (2) a maximum purge time of at least 30 minutes was achieved. During purging and sampling, the purge rate was not allowed to exceed 500 milliliters per minute. Water quality parameter stabilization criteria include the following: ■ Turbidity: ±10 percent for values greater than 5 NTU; ■ DO: ±10 percent for values greater than 0.5 milligrams per liter; ■ Conductivity: ±3 percent; ■ pH: ±0.1 unit; ■ Temperature: ±3 percent; and ■ ORP: ±10 millivolts. After groundwater quality stabilization criteria were reached, the pump’s discharge tubing was disconnected from the flow-through cell and groundwater samples were collected for analysis. Each sample was pumped directly into sample containers supplied by the laboratory. A duplicate groundwater sample was collected from well MW-3. Groundwater samples collected for chemical analysis June 29, 2017 | Page A-2 File No. 0504-119-00 were kept cool during on-site storage and transport to the laboratory. Chain-of-custody procedures were observed during transport and delivery of the groundwater samples. ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Spokane 11922 East 1st Ave Spokane, WA 99206 Tel: (509)924-9200 TestAmerica Job ID: 590-6129-1 Client Project/Site: Kittitas County Shop/0504-119-00 For: GeoEngineers Inc 523 East Second Ave Spokane, Washington 99202 Attn: Scott Lathen Authorized for release by: 5/19/2017 1:52:07 PM Randee Arrington, Project Manager II (509)924-9200 randee.arrington@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 Table of Contents Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 TestAmerica Job ID: 590-6129-1 Page 2 of 19 TestAmerica Spokane 5/19/2017 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 1 2 3 4 5 6 7 8 9 10 11 12 Case Narrative Client: GeoEngineers Inc TestAmerica Job ID: 590-6129-1 Project/Site: Kittitas County Shop/0504-119-00 Job ID: 590-6129-1 Laboratory: TestAmerica Spokane Narrative Receipt The samples were received on 5/12/2017 3:25 PM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was 4.9º C. GC/MS VOA No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. GC Semi VOA No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. VOA Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. TestAmerica Spokane Page 3 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Sample Summary TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID Client Sample ID ReceivedCollectedMatrix 590-6129-1 MW-1:051217 Water 05/12/17 09:25 05/12/17 15:25 590-6129-2 MW-2:051217 Water 05/12/17 12:10 05/12/17 15:25 590-6129-3 MW-3:051217 Water 05/12/17 11:10 05/12/17 15:25 590-6129-4 MW-4:051217 Water 05/12/17 10:35 05/12/17 15:25 590-6129-5 MW-5:051217 Water 05/12/17 09:00 05/12/17 15:25 590-6129-6 MW-6:051217 Water 05/12/17 10:05 05/12/17 15:25 590-6129-7 Dup:051217 Water 05/12/17 12:00 05/12/17 15:25 590-6129-8 Trip Blank Water 05/12/17 00:00 05/12/17 15:25 TestAmerica Spokane Page 4 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Definitions/Glossary TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TestAmerica Spokane Page 5 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID: 590-6129-1Client Sample ID: MW-1:051217 Matrix: WaterDate Collected: 05/12/17 09:25 Date Received: 05/12/17 15:25 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 05/15/17 12:41 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 05/15/17 12:41 1EthylbenzeneND 2.0 ug/L 05/15/17 12:41 1m,p-Xylene ND 1.0 ug/L 05/15/17 12:41 1o-Xylene ND 1.0 ug/L 05/15/17 12:41 1TolueneND 3.0 ug/L 05/15/17 12:41 1Xylenes, Total ND 1.0 ug/L 05/15/17 12:41 1Methyl tert-butyl ether ND 1,2-Dichloroethane-d4 (Surr)106 70 -125 05/15/17 12:41 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)99 05/15/17 12:41 169-120 Dibromofluoromethane (Surr)105 05/15/17 12:41 180-120 Toluene-d8 (Surr)102 05/15/17 12:41 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 05/15/17 12:41 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)99 68.7 -141 05/15/17 12:41 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 0.25 mg/L 05/17/17 09:29 05/17/17 12:01 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.41 mg/L 05/17/17 09:29 05/17/17 12:01 1Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 92 50 -150 05/17/17 09:29 05/17/17 12:01 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 94 05/17/17 09:29 05/17/17 12:01 150-150 Lab Sample ID: 590-6129-2Client Sample ID: MW-2:051217 Matrix: WaterDate Collected: 05/12/17 12:10 Date Received: 05/12/17 15:25 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 05/15/17 13:04 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 05/15/17 13:04 1EthylbenzeneND 2.0 ug/L 05/15/17 13:04 1m,p-Xylene ND 1.0 ug/L 05/15/17 13:04 1o-Xylene ND 1.0 ug/L 05/15/17 13:04 1TolueneND 3.0 ug/L 05/15/17 13:04 1Xylenes, Total ND 1.0 ug/L 05/15/17 13:04 1Methyl tert-butyl ether ND 1,2-Dichloroethane-d4 (Surr)102 70 -125 05/15/17 13:04 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)105 05/15/17 13:04 169-120 Dibromofluoromethane (Surr)101 05/15/17 13:04 180-120 Toluene-d8 (Surr)94 05/15/17 13:04 180-120 TestAmerica Spokane Page 6 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID: 590-6129-2Client Sample ID: MW-2:051217 Matrix: WaterDate Collected: 05/12/17 12:10 Date Received: 05/12/17 15:25 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline 200 150 ug/L 05/15/17 13:04 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)105 68.7 -141 05/15/17 13:04 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 0.25 mg/L 05/17/17 09:29 05/17/17 12:19 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.42 mg/L 05/17/17 09:29 05/17/17 12:19 1Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 94 50 -150 05/17/17 09:29 05/17/17 12:19 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 95 05/17/17 09:29 05/17/17 12:19 150-150 Lab Sample ID: 590-6129-3Client Sample ID: MW-3:051217 Matrix: WaterDate Collected: 05/12/17 11:10 Date Received: 05/12/17 15:25 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 05/15/17 13:26 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 05/15/17 13:26 1EthylbenzeneND 2.0 ug/L 05/15/17 13:26 1m,p-Xylene ND 1.0 ug/L 05/15/17 13:26 1o-Xylene ND 1.0 ug/L 05/15/17 13:26 1TolueneND 3.0 ug/L 05/15/17 13:26 1Xylenes, Total ND 1.0 ug/L 05/15/17 13:26 1Methyl tert-butyl ether ND 1,2-Dichloroethane-d4 (Surr)107 70 -125 05/15/17 13:26 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)104 05/15/17 13:26 169-120 Dibromofluoromethane (Surr)108 05/15/17 13:26 180-120 Toluene-d8 (Surr)97 05/15/17 13:26 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 05/15/17 13:26 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)104 68.7 -141 05/15/17 13:26 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 0.25 mg/L 05/17/17 09:29 05/17/17 12:37 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.42 mg/L 05/17/17 09:29 05/17/17 12:37 1Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 97 50 -150 05/17/17 09:29 05/17/17 12:37 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 96 05/17/17 09:29 05/17/17 12:37 150-150 TestAmerica Spokane Page 7 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID: 590-6129-4Client Sample ID: MW-4:051217 Matrix: WaterDate Collected: 05/12/17 10:35 Date Received: 05/12/17 15:25 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 05/15/17 13:48 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 05/15/17 13:48 1EthylbenzeneND 2.0 ug/L 05/15/17 13:48 1m,p-Xylene ND 1.0 ug/L 05/15/17 13:48 1o-Xylene ND 1.0 ug/L 05/15/17 13:48 1TolueneND 3.0 ug/L 05/15/17 13:48 1Xylenes, Total ND 1.0 ug/L 05/15/17 13:48 1Methyl tert-butyl ether ND 1,2-Dichloroethane-d4 (Surr)104 70 -125 05/15/17 13:48 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)99 05/15/17 13:48 169-120 Dibromofluoromethane (Surr)107 05/15/17 13:48 180-120 Toluene-d8 (Surr)100 05/15/17 13:48 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 05/15/17 13:48 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)99 68.7 -141 05/15/17 13:48 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 0.25 mg/L 05/17/17 09:29 05/17/17 12:54 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.41 mg/L 05/17/17 09:29 05/17/17 12:54 1Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 94 50 -150 05/17/17 09:29 05/17/17 12:54 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 96 05/17/17 09:29 05/17/17 12:54 150-150 Lab Sample ID: 590-6129-5Client Sample ID: MW-5:051217 Matrix: WaterDate Collected: 05/12/17 09:00 Date Received: 05/12/17 15:25 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 05/15/17 14:11 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 05/15/17 14:11 1EthylbenzeneND 2.0 ug/L 05/15/17 14:11 1m,p-Xylene ND 1.0 ug/L 05/15/17 14:11 1o-Xylene ND 1.0 ug/L 05/15/17 14:11 1TolueneND 3.0 ug/L 05/15/17 14:11 1Xylenes, Total ND 1.0 ug/L 05/15/17 14:11 1Methyl tert-butyl ether ND 1,2-Dichloroethane-d4 (Surr)107 70 -125 05/15/17 14:11 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)100 05/15/17 14:11 169-120 Dibromofluoromethane (Surr)108 05/15/17 14:11 180-120 Toluene-d8 (Surr)96 05/15/17 14:11 180-120 TestAmerica Spokane Page 8 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID: 590-6129-5Client Sample ID: MW-5:051217 Matrix: WaterDate Collected: 05/12/17 09:00 Date Received: 05/12/17 15:25 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 05/15/17 14:11 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)100 68.7 -141 05/15/17 14:11 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 0.25 mg/L 05/17/17 09:29 05/17/17 13:12 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.41 mg/L 05/17/17 09:29 05/17/17 13:12 1Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 96 50 -150 05/17/17 09:29 05/17/17 13:12 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 98 05/17/17 09:29 05/17/17 13:12 150-150 Lab Sample ID: 590-6129-6Client Sample ID: MW-6:051217 Matrix: WaterDate Collected: 05/12/17 10:05 Date Received: 05/12/17 15:25 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 05/15/17 14:33 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 05/15/17 14:33 1EthylbenzeneND 2.0 ug/L 05/15/17 14:33 1m,p-Xylene ND 1.0 ug/L 05/15/17 14:33 1o-Xylene ND 1.0 ug/L 05/15/17 14:33 1TolueneND 3.0 ug/L 05/15/17 14:33 1Xylenes, Total ND 1.0 ug/L 05/15/17 14:33 1Methyl tert-butyl ether ND 1,2-Dichloroethane-d4 (Surr)108 70 -125 05/15/17 14:33 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)102 05/15/17 14:33 169-120 Dibromofluoromethane (Surr)109 05/15/17 14:33 180-120 Toluene-d8 (Surr)97 05/15/17 14:33 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 05/15/17 14:33 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)102 68.7 -141 05/15/17 14:33 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 0.25 mg/L 05/17/17 09:29 05/17/17 13:30 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.42 mg/L 05/17/17 09:29 05/17/17 13:30 1Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 91 50 -150 05/17/17 09:29 05/17/17 13:30 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 92 05/17/17 09:29 05/17/17 13:30 150-150 TestAmerica Spokane Page 9 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID: 590-6129-7Client Sample ID: Dup:051217 Matrix: WaterDate Collected: 05/12/17 12:00 Date Received: 05/12/17 15:25 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 05/15/17 14:55 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 05/15/17 14:55 1EthylbenzeneND 2.0 ug/L 05/15/17 14:55 1m,p-Xylene ND 1.0 ug/L 05/15/17 14:55 1o-Xylene ND 1.0 ug/L 05/15/17 14:55 1TolueneND 3.0 ug/L 05/15/17 14:55 1Xylenes, Total ND 1.0 ug/L 05/15/17 14:55 1Methyl tert-butyl ether ND 1,2-Dichloroethane-d4 (Surr)109 70 -125 05/15/17 14:55 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)106 05/15/17 14:55 169-120 Dibromofluoromethane (Surr)115 05/15/17 14:55 180-120 Toluene-d8 (Surr)100 05/15/17 14:55 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 05/15/17 14:55 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 4-Bromofluorobenzene (Surr)106 68.7 -141 05/15/17 14:55 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) RL MDL Diesel Range Organics (DRO) (C10-C25) ND 0.25 mg/L 05/17/17 09:29 05/17/17 13:47 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.41 mg/L 05/17/17 09:29 05/17/17 13:47 1Residual Range Organics (RRO) (C25-C36) ND o-Terphenyl 91 50 -150 05/17/17 09:29 05/17/17 13:47 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery n-Triacontane-d62 93 05/17/17 09:29 05/17/17 13:47 150-150 Lab Sample ID: 590-6129-8Client Sample ID: Trip Blank Matrix: WaterDate Collected: 05/12/17 00:00 Date Received: 05/12/17 15:25 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 05/15/17 15:18 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1.0 ug/L 05/15/17 15:18 1EthylbenzeneND 2.0 ug/L 05/15/17 15:18 1m,p-Xylene ND 1.0 ug/L 05/15/17 15:18 1o-Xylene ND 1.0 ug/L 05/15/17 15:18 1TolueneND 3.0 ug/L 05/15/17 15:18 1Xylenes, Total ND 1,2-Dichloroethane-d4 (Surr)111 70 -125 05/15/17 15:18 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)98 05/15/17 15:18 169-120 Dibromofluoromethane (Surr)110 05/15/17 15:18 180-120 Toluene-d8 (Surr)102 05/15/17 15:18 180-120 TestAmerica Spokane Page 10 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Method: 8260C - Volatile Organic Compounds by GC/MS Client Sample ID: Method BlankLab Sample ID: MB 590-12073/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 12073 RL MDL Benzene ND 0.40 ug/L 05/15/17 11:57 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 1.0 ug/L 05/15/17 11:57 1Ethylbenzene ND 2.0 ug/L 05/15/17 11:57 1m,p-Xylene ND 1.0 ug/L 05/15/17 11:57 1o-Xylene ND 1.0 ug/L 05/15/17 11:57 1Toluene ND 3.0 ug/L 05/15/17 11:57 1Xylenes, Total ND 1.0 ug/L 05/15/17 11:57 1Methyl tert-butyl ether 1,2-Dichloroethane-d4 (Surr)104 70 -125 05/15/17 11:57 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 101 05/15/17 11:57 14-Bromofluorobenzene (Surr)69 -120 105 05/15/17 11:57 1Dibromofluoromethane (Surr)80 -120 100 05/15/17 11:57 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-12073/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 12073 Benzene 10.0 9.29 ug/L 93 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Ethylbenzene 10.0 9.06 ug/L 91 80 -120 m,p-Xylene 10.0 8.87 ug/L 89 80 -120 o-Xylene 10.0 8.50 ug/L 85 80 -120 Toluene 10.0 8.72 ug/L 87 80 -123 Methyl tert-butyl ether 10.0 9.52 ug/L 95 71 -128 1,2-Dichloroethane-d4 (Surr)70 -125 Surrogate 99 LCS LCS Qualifier Limits%Recovery 1004-Bromofluorobenzene (Surr)69 -120 101Dibromofluoromethane (Surr)80 -120 95Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 590-12073/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 12073 Benzene 10.0 10.3 ug/L 103 80 -120 10 25 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec. Limits LimitRPD RPD Ethylbenzene 10.0 9.75 ug/L 98 80 -120 7 25 m,p-Xylene 10.0 9.93 ug/L 99 80 -120 11 25 o-Xylene 10.0 9.58 ug/L 96 80 -120 12 25 Toluene 10.0 9.79 ug/L 98 80 -123 12 25 Methyl tert-butyl ether 10.0 10.6 ug/L 106 71 -128 11 12 1,2-Dichloroethane-d4 (Surr)70 -125 Surrogate 100 LCSD LCSD Qualifier Limits%Recovery 994-Bromofluorobenzene (Surr)69 -120 TestAmerica Spokane Page 11 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Method: 8260C - Volatile Organic Compounds by GC/MS (Continued) Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 590-12073/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 12073 Dibromofluoromethane (Surr)80 -120 Surrogate 103 LCSD LCSD Qualifier Limits%Recovery 95Toluene-d8 (Surr)80 -120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) Client Sample ID: Method BlankLab Sample ID: MB 590-12074/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 12074 RL MDL Gasoline ND 150 ug/L 05/15/17 11:57 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier 4-Bromofluorobenzene (Surr)101 68.7 -141 05/15/17 11:57 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-12074/1004 Matrix: Water Prep Type: Total/NA Analysis Batch: 12074 Gasoline 1000 895 ug/L 89 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits 4-Bromofluorobenzene (Surr)68.7 -141 Surrogate 104 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 590-12074/1015 Matrix: Water Prep Type: Total/NA Analysis Batch: 12074 Gasoline 1000 925 ug/L 92 80 -120 3 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec. Limits LimitRPD RPD 4-Bromofluorobenzene (Surr)68.7 -141 Surrogate 103 LCSD LCSD Qualifier Limits%Recovery Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) Client Sample ID: Method BlankLab Sample ID: MB 590-12108/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 12110 Prep Batch: 12108 RL MDL Diesel Range Organics (DRO) (C10-C25) ND 0.24 mg/L 05/17/17 09:29 05/17/17 11:07 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 0.40 mg/L 05/17/17 09:29 05/17/17 11:07 1Residual Range Organics (RRO) (C25-C36) TestAmerica Spokane Page 12 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Method: NWTPH-Dx - Northwest - Semi-Volatile Petroleum Products (GC) (Continued) Client Sample ID: Method BlankLab Sample ID: MB 590-12108/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 12110 Prep Batch: 12108 o-Terphenyl 99 50 -150 05/17/17 11:07 1 MB MB Surrogate 05/17/17 09:29 Dil FacPreparedAnalyzedQualifierLimits%Recovery 103 05/17/17 09:29 05/17/17 11:07 1n-Triacontane-d62 50 -150 Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-12108/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 12110 Prep Batch: 12108 Diesel Range Organics (DRO) (C10-C25) 1.60 1.46 mg/L 91 50 -150 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec. Limits Residual Range Organics (RRO) (C25-C36) 1.60 1.87 mg/L 117 50 -150 o-Terphenyl 50 -150 Surrogate 97 LCS LCS Qualifier Limits%Recovery 102n-Triacontane-d62 50 -150 Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 590-12108/3-A Matrix: Water Prep Type: Total/NA Analysis Batch: 12110 Prep Batch: 12108 Diesel Range Organics (DRO) (C10-C25) 1.60 1.42 mg/L 89 50 -150 3 25 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec. Limits LimitRPD RPD Residual Range Organics (RRO) (C25-C36) 1.60 1.82 mg/L 114 50 -150 3 25 o-Terphenyl 50 -150 Surrogate 98 LCSD LCSD Qualifier Limits%Recovery 102n-Triacontane-d62 50 -150 TestAmerica Spokane Page 13 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Lab Chronicle Client: GeoEngineers Inc TestAmerica Job ID: 590-6129-1 Project/Site: Kittitas County Shop/0504-119-00 Client Sample ID: MW-1:051217 Lab Sample ID: 590-6129-1 Matrix: WaterDate Collected: 05/12/17 09:25 Date Received: 05/12/17 15:25 Analysis 8260C MRS05/15/17 12:411 TAL SPK12073 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 12074 05/15/17 12:41 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 12108 05/17/17 09:29 NMI TAL SPKTotal/NA 241.2 mL 2 mL Analysis NWTPH-Dx 1 12110 05/17/17 12:01 NMI TAL SPKTotal/NA Client Sample ID: MW-2:051217 Lab Sample ID: 590-6129-2 Matrix: WaterDate Collected: 05/12/17 12:10 Date Received: 05/12/17 15:25 Analysis 8260C MRS05/15/17 13:041 TAL SPK12073 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 12074 05/15/17 13:04 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 12108 05/17/17 09:29 NMI TAL SPKTotal/NA 240.9 mL 2 mL Analysis NWTPH-Dx 1 12110 05/17/17 12:19 NMI TAL SPKTotal/NA Client Sample ID: MW-3:051217 Lab Sample ID: 590-6129-3 Matrix: WaterDate Collected: 05/12/17 11:10 Date Received: 05/12/17 15:25 Analysis 8260C MRS05/15/17 13:261 TAL SPK12073 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 12074 05/15/17 13:26 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 12108 05/17/17 09:29 NMI TAL SPKTotal/NA 239.9 mL 2 mL Analysis NWTPH-Dx 1 12110 05/17/17 12:37 NMI TAL SPKTotal/NA Client Sample ID: MW-4:051217 Lab Sample ID: 590-6129-4 Matrix: WaterDate Collected: 05/12/17 10:35 Date Received: 05/12/17 15:25 Analysis 8260C MRS05/15/17 13:481 TAL SPK12073 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 12074 05/15/17 13:48 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 12108 05/17/17 09:29 NMI TAL SPKTotal/NA 241.3 mL 2 mL Analysis NWTPH-Dx 1 12110 05/17/17 12:54 NMI TAL SPKTotal/NA Client Sample ID: MW-5:051217 Lab Sample ID: 590-6129-5 Matrix: WaterDate Collected: 05/12/17 09:00 Date Received: 05/12/17 15:25 Analysis 8260C MRS05/15/17 14:111 TAL SPK12073 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 12074 05/15/17 14:11 MRS TAL SPKTotal/NA 43 mL 43 mL TestAmerica Spokane Page 14 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Lab Chronicle Client: GeoEngineers Inc TestAmerica Job ID: 590-6129-1 Project/Site: Kittitas County Shop/0504-119-00 Prep 3510C NMI05/17/17 09:29 TAL SPK12108 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 243.3 mL 2 mL Analysis NWTPH-Dx 1 12110 05/17/17 13:12 NMI TAL SPKTotal/NA Client Sample ID: MW-6:051217 Lab Sample ID: 590-6129-6 Matrix: WaterDate Collected: 05/12/17 10:05 Date Received: 05/12/17 15:25 Analysis 8260C MRS05/15/17 14:331 TAL SPK12073 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 12074 05/15/17 14:33 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 12108 05/17/17 09:29 NMI TAL SPKTotal/NA 240.3 mL 2 mL Analysis NWTPH-Dx 1 12110 05/17/17 13:30 NMI TAL SPKTotal/NA Client Sample ID: Dup:051217 Lab Sample ID: 590-6129-7 Matrix: WaterDate Collected: 05/12/17 12:00 Date Received: 05/12/17 15:25 Analysis 8260C MRS05/15/17 14:551 TAL SPK12073 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 12074 05/15/17 14:55 MRS TAL SPKTotal/NA 43 mL 43 mL Prep 3510C 12108 05/17/17 09:29 NMI TAL SPKTotal/NA 244 mL 2 mL Analysis NWTPH-Dx 1 12110 05/17/17 13:47 NMI TAL SPKTotal/NA Client Sample ID: Trip Blank Lab Sample ID: 590-6129-8 Matrix: WaterDate Collected: 05/12/17 00:00 Date Received: 05/12/17 15:25 Analysis 8260C MRS05/15/17 15:181 TAL SPK12073 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Laboratory References: TAL SPK = TestAmerica Spokane, 11922 East 1st Ave, Spokane, WA 99206, TEL (509)924-9200 TestAmerica Spokane Page 15 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Accreditation/Certification Summary Client: GeoEngineers Inc TestAmerica Job ID: 590-6129-1 Project/Site: Kittitas County Shop/0504-119-00 Laboratory: TestAmerica Spokane All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Program EPA Region Identification Number Expiration Date Alaska (UST)UST-07110State Program 10-31-17 Washington State Program 10 C569 01-06-18 TestAmerica Spokane Page 16 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Method Summary TestAmerica Job ID: 590-6129-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Method Method Description LaboratoryProtocol SW8468260CVolatile Organic Compounds by GC/MS TAL SPK NWTPHNWTPH-Gx Northwest - Volatile Petroleum Products (GC/MS)TAL SPK NWTPHNWTPH-Dx Northwest - Semi-Volatile Petroleum Products (GC)TAL SPK Protocol References: NWTPH = Northwest Total Petroleum Hydrocarbon SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: TAL SPK = TestAmerica Spokane, 11922 East 1st Ave, Spokane, WA 99206, TEL (509)924-9200 TestAmerica Spokane Page 17 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 Page 18 of 19 5/19/2017 1234567 8 9 10 11 12 Login Sample Receipt Checklist Client: GeoEngineers Inc Job Number: 590-6129-1 Login Number: 6129 Question Answer Comment Creator: Arrington, Randee E List Source: TestAmerica Spokane List Number: 1 N/ARadioactivity wasn't checked or is </= background as measured by a survey meter. Lab does not accept radioactive samples. N/AThe cooler's custody seal, if present, is intact. TrueSample custody seals, if present, are intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. TrueSamples were received on ice. TrueCooler Temperature is acceptable. TrueCooler Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. FalseIs the Field Sampler's name present on COC?Not requested on COC TrueThere are no discrepancies between the containers received and the COC. TrueSamples are received within Holding Time (excluding tests with immediate HTs) TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. TrueSample bottles are completely filled. TrueSample Preservation Verified. TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs TrueContainers requiring zero headspace have no headspace or bubble is <6mm (1/4"). TrueMultiphasic samples are not present. TrueSamples do not require splitting or compositing. N/AResidual Chlorine Checked. TestAmerica Spokane Page 19 of 19 5/19/2017 1 2 3 4 5 6 7 8 9 10 11 12 APPENDIX B Chemical Analytical Laboratory Reports June 29, 2017 | Page B-1 File No. 0504-119-00 APPENDIX B CHEMICAL ANALYTICAL LABORATORY REPORTS Samples Chain-of-custody procedures were followed during the transport of the field samples to TestAmerica located in Spokane, Washington. The samples were held in cold storage pending extraction and/or analysis. The analytical results and quality control records are included in this appendix. Analytical Data Review The laboratory maintains an internal quality assurance/quality control (QA/QC) program as documented in its laboratory quality assurance manual. The laboratory uses 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 laboratory also uses data quality goals for individual chemicals or groups of chemicals based on the long-term performance of the test methods. The data quality goals were included in the laboratory report dated May 19, 2017. Analytical Data Review Summary We reviewed the laboratory internal QA/QC in the context of data quality goals. Based on our review, in our opinion, the quality of the analytical data is acceptable for the intended use. APPENDIX C Report Limitations and Guidelines for Use C- June 29, 2017 | Page C-2 File No. 0504-119-00 APPENDIX C REPORT LIMITATIONS AND GUIDELINES FOR USE 1 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 This report has been prepared for the exclusive use of the Washington State Department of Ecology (Ecology). This report is not intended for use by others, and the information contained herein is not applicable to other sites. GeoEngineers structures our services to meet the specific needs of our clients. For example, an environmental site assessment 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 project site. No one except Ecology should rely on this environmental report without first conferring with GeoEngineers. This report should not be applied 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 Kittitas County Lower Shop located at 505 West 14th Avenue in Ellensburg, 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, do not 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 after the date of this report, GeoEngineers should be given the opportunity to review our interpretations and recommendations and provide written modifications or confirmation, as appropriate. Reliance Conditions for Third Parties Our report was prepared for the exclusive use of Ecology. No other party may rely on the product of our services unless we agree in advance to such reliance in writing. This is to provide our firm and Ecology 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 Ecology and generally accepted environmental practices in this area at the time this report was prepared. 1 Developed based on material provided by ASFE, Professional Firms Practicing in the Geosciences; www.asfe.org. C- June 29, 2017 | Page C-3 File No. 0504-119-00 Environmental Regulations are Always Evolving Some substances may be present in the site vicinity in quantities or under conditions that may have led, or may lead, to contamination of the subject site, 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 substance, change or if more stringent environmental standards are developed in the future. Uncertainty May Remain Even After This Phase II ESA is Completed No ESA can wholly eliminate uncertainty regarding the potential for contamination in connection with a property. 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. 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 manmade events such as construction on or adjacent to the site, by new releases of hazardous substances, or by natural events such as floods, earthquakes, slope instability or groundwater fluctuations. Always contact GeoEngineers before applying this report to determine if it is still applicable. 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 site. Site exploration identifies subsurface conditions only at those points where subsurface tests are conducted or samples are taken. GeoEngineers reviewed field and laboratory data and then applied our professional judgment to render an opinion about subsurface conditions throughout the site. 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. Do Not Redraw the Exploration Logs Environmental scientists prepare final boring and testing logs based upon their interpretation of field logs and laboratory data. To prevent errors or omissions, the logs included in an environmental report should never be redrawn for inclusion in other design drawings. Only photographic or electronic reproductions are acceptable, but recognize that separating logs from the report can elevate risk. Read These Provisions Closely Some clients, design professionals and contractors may not recognize that the geoscience practices (geotechnical engineering, geology and environmental science) are far less exact than other engineering and natural science disciplines. This lack of understanding can create unrealistic 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 are unclear how these “Report Limitations and Guidelines for Use” apply to your project or site. C- June 29, 2017 | Page C-4 File No. 0504-119-00 Geotechnical, Geologic and Geoenvironmental Reports Should Not be Interchanged The equipment, techniques and personnel used to perform an environmental study differ significantly from those used to perform a geotechnical or geologic study and vice versa. For that reason, a geotechnical engineering or geologic report does not usually relate any environmental findings, conclusions or recommendations; e.g., about the likelihood of encountering underground storage tanks or regulated contaminants. Similarly, environmental reports are not used to address geotechnical or geologic concerns regarding a specific project. 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. If Ecology desires these specialized services, they should be obtained from a consultant who offers services in this specialized field. Have we delivered World Class Client Service? Please let us know by visiting www.geoengineers.com/feedback. Groundwater Monitoring Report First Quarter 2019 Model Remedy LUST Sites Kittitas County Lower Shop 505 West 14th Avenue Ellensburg, Washington for Washington State Department of Ecology March 7, 2019 Groundwater Monitoring Report First Quarter 2019 Model Remedy LUST Sites Kittitas County Lower Shop 505 West 14th Avenue Ellensburg, Washington for Washington State Department of Ecology March 7, 2019 523 East Second Avenue Spokane, Washington 99202 509.363.3125 C � U' o M G� � 1 CRUM)] C� h��U o n Cr' D C�� ��� C ���Cu) FY Kit ' as County ,c, a GG� o Gm go k v. 1 .. r �o De No. 0504-119-01 Prepared for: Washington State Department of Ecology Toxics Cleanup Program - Central Region Office 1250 West Alder Street Union Gap, Washington 95903 Attention: Jeff Newschwander Prepared by: GeoEngineers, Inc. 523 East Second Avenue Spokane, Washington 99202 509.363.3125 Ju W. Rice, LG taff Geologist Bruce D. Williams Principal JDO:JWR:BDW:mce Disclaimer: Any electronic form, facsimile or hard copy ofthe original document (email, text, table, and/orfigure), 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. March 7, 2019 | Page i File No. 0504-119-01 Table of Contents 1.0 INTRODUCTION ............................................................................................................................................... 1 2.0 PREVIOUS ASSESSMENT ............................................................................................................................... 1 3.0 SCOPE OF SERVICES ...................................................................................................................................... 1 4.0 FIELD ACTIVITIES ............................................................................................................................................ 2 4.1. Groundwater Sampling ............................................................................................................................... 2 5.0 CHEMICAL ANALYTICAL RESULTS ................................................................................................................. 3 5.1. Groundwater Chemical Analytical Results................................................................................................. 3 6.0 SUMMARY, CONCLUSIONS AND RECOMMENDATIONS ............................................................................... 4 7.0 LIMITATIONS ................................................................................................................................................... 5 8.0 REFERENCES .................................................................................................................................................. 5 LIST OF FIGURES Figure 1. Vicinity Map Figure 2. Site Plan and January 2019 Groundwater Elevations APPENDICES Appendix A. Field Methods Table A-1. Summary of Groundwater Elevations and Natural Attenuation Parameters Table A-2. Summary of Chemical Analytical Test Results - Groundwater Appendix B. Chemical Analytical Laboratory Reports Appendix C. Report Limitations and Guidelines for Use March 7, 2019 | Page 1 File No. 0504-119-01 1.0 INTRODUCTION This report presents results of the January 2019 groundwater monitoring event conducted at the Kittitas County Lower Shop site located at 505 West 14th Avenue in Ellensburg, Washington (herein referred to as “site”). The approximate site location is shown in the attached Vicinity Map, Figure 1. Site environmental activities are managed by the Washington State Department of Ecology (Ecology). This report describes field activities, observations and chemical analytical results associated with groundwater samples collected at the site. The purpose of the overall assessment activities associated with this project is to further assess the potential for groundwater contamination associated with the former underground storage tank (UST) operation. 2.0 PREVIOUS ASSESSMENT GeoEngineers conducted a soil and groundwater assessment on December 1, 2016 (GeoEngineers 2016). Benzene and gasoline-range petroleum hydrocarbons (GRPH) were detected in soil samples collected from borings B-1 and B-2 at concentrations greater than the Washington State Model Toxics Control Act (MTCA) Method A unrestricted land use cleanup levels. GRPH, diesel- and oil-range petroleum hydrocarbons (DRPH and ORPH, respectively) also exceeded MTCA Method A cleanup levels from a grab groundwater sample collected from soil boring B-1. Boring locations are shown in the attached Site Plan and January 2019 Groundwater Elevations, Figure 2. A prior environmental report (Terragraphics 2014) for the site identified one existing groundwater monitoring well on the property. This well was located during the December 2016 site assessment and three additional wells were located. The four existing well locations (MW-1, MW-4 through MW-6) were re-labeled in the field as shown on Figure 2. Two additional wells (MW-2 and MW-3) were installed during our December 2016 assessment activities for a total of six groundwater monitoring wells on site. First quarter and second quarter 2017 groundwater monitoring events (GeoEngineers 2017a and 2017b) were conducted in March 2017 and May 2017, respectively. GRPH was detected in the monitoring well MW-2 sample during both events and benzene, ethylbenzene and total xylenes were detected in the monitoring well MW-2 sample during the first quarter 2017 event; however, the reported concentrations did not exceed MTCA Method A cleanup levels. 3.0 SCOPE OF SERVICES The scope of services included the following: 1. Coordinating subcontractors (TestAmerica Laboratories, Inc. [TestAmerica]) and providing project management services. 2. Performing the first quarter 2019 groundwater monitoring event. Water quality parameters (pH, temperature, oxidation-reduction potential [ORP], turbidity, dissolved oxygen [DO] and conductivity) were measured and documented while purging each well. Groundwater samples were collected from the six site monitoring wells (MW-1 through MW-6); one duplicate groundwater sample was collected March 7, 2019 | Page 2 File No. 0504-119-01 from well MW-2. Groundwater samples were submitted to TestAmerica for the following laboratory analyses: a. GRPH using Northwest Method NWTPH-Gx; and b. Benzene, toluene, ethylbenzene, total xylenes (BTEX) using United States Environmental Protection Agency (EPA) Method 8260C. 3. Measuring depth to groundwater and calculating relative groundwater elevations to estimate groundwater flow direction and gradient. 4. Drumming and labeling investigation-derived waste (IDW). A qualified contractor will be retained to profile and transport the IDW for disposal at a permitted facility. We assume that IDW disposal for the site will be completed in a single “disposal run” at the conclusion of the site monitoring activities. 5. Entering the analytical data into Ecology’s Environmental Information Management (EIM) database. 6. Preparing this groundwater monitoring report following receipt of the final analytical data. 4.0 FIELD ACTIVITIES Groundwater monitoring activities included measuring depth to groundwater in site monitoring wells MW-1 through MW-6, measuring field water quality parameters and collecting groundwater samples. Data collected in the field and laboratory analytical results were then analyzed and interpreted and the results are summarized in this groundwater monitoring report. Field methods are described in Appendix A. 4.1. Groundwater Elevations GeoEngineers measured static groundwater levels in site monitoring wells MW-1 through MW-6 on January 30, 2019. Depth to groundwater, measured from the top of the PVC well casings, ranged from approximately 3.70 feet (MW-2) to 4.98 feet (MW-6). Groundwater elevations ranged from approximately 1569.84 feet in monitoring well MW-5 to 1573.84 feet in monitoring well MW-1. Depth to water and groundwater elevations are presented in Table 1 below. Based on groundwater elevations on January 30, 2019, groundwater flow is generally to the southwest. The estimated hydraulic groundwater gradient across the site was about 0.009 feet per foot (which is approximately 47.5 feet per mile). Hydraulic groundwater gradients increase toward the southwest near MW-5 to about 0.025 feet per foot (which is approximately 132 feet per mile). Approximate groundwater elevations and flow directions are graphically presented in Figure 2. 4.2. Groundwater Sampling Monitoring wells MW-1 through MW-6 were purged and sampled using low-flow sampling techniques. A peristaltic pump equipped with disposable tubing was used to purge and sample each well. Groundwater quality parameters generally were measured at 3-minute intervals during well purging. Groundwater samples were collected when each water quality parameter had stabilized in conformance with the criteria presented in Appendix A or a maximum purge time of 30 minutes was achieved. Field methods are described in Appendix A. A duplicate sample was collected from monitoring well MW-2. Groundwater samples were submitted to TestAmerica for chemical analysis using the methods described in “Section 3.0” and chemical analytical results are discussed in “Section 5.0.” March 7, 2019 | Page 3 File No. 0504-119-01 Purge water generated during groundwater sampling was drummed and labeled for future disposal at a permitted facility. 4.3. Monitored Natural Attenuation Parameters Water quality parameters, including turbidity, DO, ORP, specific conductivity, pH, and temperature were measured in the field using a calibrated water quality meter equipped with a flow-through cell and the results are summarized in Table 1 below. Relatively low DO and ORP levels at MW-2, within the former UST basin indicate the potential reducing conditions that support bioremediation. The ORP levels in the upgradient well (MW-1) and downgradient wells (MW-5 and MW-6), are elevated; as is ORP in MW-3 which is closer but cross-gradient to the former UST area. DO is high in MW-1 and MW-6, moderately high in MW- 3 and low in MW-4 and MW-5, possibly indicating an anaerobic zone extending from MW-2 to MW-5. TABLE 1. DEPTH TO GROUNDWATER AND GROUNDWATER QUALITY PARAMETERS Monitoring Well ID Depth to Water and Field Measured Natural Attenuation Parameters Depth to Water (feet) Groundwater Elevation (feet) pH (pH units) Specific Conductivity (mS/cm) ORP (mV) Dissolved Oxygen (mg/L) Turbidity1 (NTU) Temperature (degrees C) MW-1 3.80 1,573.84 7.08 0.568 166.7 2.75 10.4 7.0 MW-2 3.70 1,573.38 6.66 0.689 130.5 1.22 4.8 5.5 MW-3 3.86 1,573.16 6.94 0.814 168.8 0.80 4.9 8.4 MW-4 4.43 1,572.29 7.14 0.733 140.5 0.97 2.6 12.7 MW-5 4.39 1,569.84 7.08 1.152 170.5 1.39 9.4 8.3 MW-6 4.98 1,571.49 7.29 0.647 164.3 6.26 4.1 9.4 Notes: 1Turbidity is not a natural attenuation parameter but was measured in the field to evaluate groundwater stabilization. 2 Groundwater elevations calculated using the formula: Groundwater Elevation = Top of Casing Elevation - Depth to Water mS/cm = milliSiemens per centimeter; mV = millivolts; mg/L = milligrams per liter; NTU = nephelometric turbidity units 5.0 CHEMICAL ANALYTICAL RESULTS Six groundwater samples, and one duplicate, were submitted to TestAmerica for the chemical analyses described in “Section 3.0 Scope of Services.” This section presents the analytical results for groundwater samples collected during the January 2019 monitoring event. 5.1. Groundwater Chemical Analytical Results Six groundwater samples, and one duplicate, were submitted from monitoring wells MW-1 through MW-6 to TestAmerica for the chemical analyses described in “Section 3.0 Scope of Services.” The duplicate sample was collected from monitoring well MW-2. TestAmerica’s laboratory report is included in Appendix B; chemical analytical results are summarized and compared to MTCA Method A cleanup levels for unrestricted land use in Table 2 and summarized below. Contaminants were not detected in the samples collected from MW-1 through MW-6. March 7, 2019 | Page 4 File No. 0504-119-01 TABLE 2. SUMMARY OF CHEMICAL ANALYTICAL RESULTS Monitoring Well Sample ID Petroleum- Range Hydrocarbons (µg/L)1 Volatile Organic Compounds (µg/L)1,3 GRPH2 Benzene Toluene Ethyl- benzene o-Xylene m,p-Xylenes Total Xylenes MW-1 MW-1:013019 <150 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 MW-2 MW-2:013019 <150 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 MW-3 MW-3:013019 <150 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 MW-4 MW-4:013019 <150 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 MW-5 MW-5:013019 <150 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 MW-6 MW-6:013019 <150 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 Duplicate 1/30/19 <150 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 MTCA Method A Cleanup Levels 1000/8004 5 1,000 700 1,0005 Notes: 1Chemical analyses completed by TestAmerica Laboratories, Inc. located in Spokane Valley, Washington. 2GRPH were analyzed by Northwest Method NWTPH-Gx. 3BTEX and MTBE were analyzed by EPA 8260. 4Cleanup level for gasoline-range petroleum hydrocarbons is 1,000 µg/L if benzene is not detected; otherwise the cleanup level is 800 µg/L. 5Cleanup level for total xylenes (o-xylene and m,p-xylene) is 1,000 µg/L. Concentrations were summed to determine compliance. µg/L = micrograms per liter Bold indicates the contaminant was detected at a concentration greater than the laboratory reporting limits. 6.0 SUMMARY, CONCLUSIONS AND RECOMMENDATIONS Groundwater monitoring was conducted on January 30, 2019 at the Kittitas County Shop located at 505 West 14th Avenue in Ellensburg, Washington. Six groundwater samples collected from monitoring wells MW-1 through MW-6 were submitted for GRPH and BTEX analysis. No analytes were detected at concentrations greater than laboratory reporting limits. We recommend continuing groundwater monitoring for at least one additional quarter (assuming contaminant concentrations are not detected greater than MTCA cleanup levels) to obtain a data set spanning four quarters. March 7, 2019 | Page 5 File No. 0504-119-01 7.0 LIMITATIONS We have prepared this report for the exclusive use of Ecology and their authorized agents. Within the limitations of scope, schedule and budget, our services have been executed in accordance with generally accepted environmental science practices in this area at the time this report was prepared. The conclusions and opinions presented in this report are based on our professional knowledge, judgment and experience. 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 should be considered 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 “Report Limitations and Guidelines for Use,” Appendix C, for additional information pertaining to use of this report. 8.0 REFERENCES GeoEngineers, Inc. 2016. “Data Gap Investigation.” GEI No. 0504-119-00, December 29, 2016. GeoEngineers, Inc. 2017a. “Supplemental Data Gap Investigation.” GEI No. 0504-119-00, June 26, 2017. GeoEngineers, Inc. 2017b. “Second Quarter Groundwater Monitoring.” GEI File No. 0504-119-00, July 5, 2017 TerraGraphics Environmental Engineering, Inc., 2014. Limited Phase II Environmental Site Assessment Report, Lower County Shop, Ellensburg, Washington, prepared for U.S. Environmental Protection Agency. April 11, 2014. U.S. Environmental Protection Agency, Region 1. “Low Stress (Low-Flow) Purging and Sampling Procedure for the Collection of Groundwater Samples from Monitoring Wells.” EPA SOP No. GW 01, Revised September 19, 2017. FIGURES µ SITE Vicinity Map Figure 1 Kittitas County Lower Shop505 West 14th AvenueEllensburg, Washington 2,000 2,0000 Feet Data Source: Mapbox Open Street Map, 2016 Notes: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. 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 this communication. Projection: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet P:\0\0504119\GIS\MXDs\050411900_F01_VM.mxd Date Exported: 10/25/16 by ccabrera Notes: 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. 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 this communication. 3.GRPH = Gasoline-range petroleum hydrocarbons; µg/L = micrograms per liter Data Source: Aerial image from ESRI Data Online. Legend @<Previous Boring Numberand Approximate Location @ÑBoring Number andApproximate Location Inferred Ground Elevation Contours (feet)January 29, 2019 Inferred GroundwaterFlow Direction Former UST Approximate Location(Terragraphics 2013) Existing Monitoring WellsApproximate LocationMonitoring Wells Installed byGeoEngineers (March 2017)Approximate Location P:\0\0504119\GIS\MXDs\050411900_F02_GW_Jan2019.mxd Date Exported: 02/25/19 by maugust @< @< @< @Ñ@Ñ @Ñ @Ñ @Ñ@Ñ@Ñ W 15th Ave N Okanogan StIDWStorage MW-21573.38 1571 1 5 7 3 1572 1570 ! MW-31,573.16 MW-11,573.84 MW-41,572.29 MW-51,569.84 MW-61,571.49 B-1 B-2 B-3 B-4 B-5 B-6 B-7 BH-24 BH-25 BH-26 Projection: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet Site Plan and January 2019 Groundwater Elevations Kittitas County Lower Shop505 West 14th AvenueEllensburg, Washington Figure 2 µ 60 0 60 Feet GRPH (µg/L) MW-1 <150 MW-2 <150 MW-3 <150 MW-4 <150 MW-5 <150 MW-6 <150 Chemical Analytical Results Well ID APPENDICES APPENDIX A Field Procedures March 7, 2019 | Page A-1 File No. 0504-119-01 APPENDIX A FIELD METHODS General Groundwater conditions at the Kittitas County Lower Shop in Ellensburg, Washington were monitored on January 30, 2019, by measuring depth to groundwater and sampling groundwater in monitoring wells MW-1 through MW-6. Field methods generally were performed in compliance with the project Work Plan assessment procedures. Groundwater Elevations The static depth to groundwater was measured using a Solinst Model Interface Probe. Measurements were referenced to the north side of the surveyed top-of-casing in each well monument. Groundwater elevations were calculated by subtracting the depth to water measurement from the surveyed well casing elevation and are referenced to the North American Vertical Datum of 1988 (NAVD 88). The probe of the water level indicator was decontaminated after use with a detergent wash, followed by two distilled water rinses. Depths to groundwater measured in the monitoring wells in January 2019 are summarized in Table 1; measurements from this event and two prior events are tabulated in Table A-1. The corresponding groundwater elevations in January 2019 are summarized in Table 1 and shown in Figure 2. Low-Flow Sampling Procedures Groundwater sampling was performed consistent with the United States Environmental Protection Agency’s (EPA’s) low-flow groundwater sampling procedure, as described by EPA (2017). Monitoring wells were purged using a peristaltic pump equipped and disposable tubing. During purging activities, water quality parameters, including pH, conductivity, temperature, turbidity, ORP and DO, were measured using a YSI Pro multi-parameter meter equipped with a flow-through cell; measurements were recorded approximately every 3 minutes. The meter calibration was verified at the beginning of each work day consistent with manufacturer recommendations prior to purging and sampling activities. Groundwater samples were collected after: (1) water quality parameters had stabilized; or (2) a maximum purge time of at least 30 minutes was achieved. During purging and sampling, the purge rate was not allowed to exceed 500 milliliters per minute. Water quality parameter stabilization criteria include the following: ■ Turbidity: ±10 percent for values greater than 5 NTU; ■ DO: ±10 percent for values greater than 0.5 milligrams per liter; ■ Conductivity: ±3 percent; ■ pH: ±0.1 unit; ■ Temperature: ±3 percent; and ■ ORP: ±10 millivolts. After groundwater quality stabilization criteria were reached, the pump’s discharge tubing was disconnected from the flow-through cell, and groundwater samples were collected for analysis. March 7, 2019 | Page A-2 File No. 0504-119-01 Each sample was pumped directly into sample containers supplied by the laboratory. Groundwater samples collected for chemical analysis were stored on ice during on-site storage and transport to the laboratory. Chain-of-custody procedures were observed from sample collection through transport and delivery to the laboratory. Groundwater analytical results are included on Table 2. Results from this event and two prior events are shown on Table A-2. MW-1 03/31/17 3.56 1,574.08 6.61 6.50 558 211.1 12.2 7.1 1577.64 05/12/17 3.96 1,573.68 7.09 5.31 5780 94.8 6.4 11.9 01/30/19 3.80 1,573.84 7.08 2.75 568 166.7 10.4 7.0 MW-2 03/31/17 3.35 1,573.73 6.71 0.19 1110 -9.7 3.0 6.6 1577.08 05/12/17 3.76 1,573.32 6.76 0.11 7870 -44.4 4.5 11.3 01/30/19 3.70 1,573.38 6.66 1.22 689 130.5 4.8 5.5 MW-3 03/31/17 3.51 1,573.51 6.62 1.97 1434 138.8 20.1 8.4 1577.02 05/12/17 3.88 1,573.14 6.82 1.00 7970 88.4 4.3 11.5 01/30/19 3.86 1,573.16 6.94 0.80 814 168.8 4.9 8.4 MW-4 03/31/17 4.41 1,572.31 7.03 0.57 660 60.3 7.0 13.3 1576.72 05/12/17 4.41 1,572.31 7.03 0.22 824 13.3 14.4 14.3 01/30/19 4.43 1,572.29 7.14 0.97 733 140.5 2.6 12.7 MW-5 03/31/17 7.01 1,567.22 7.05 5.43 1159 179.5 26.5 10.4 1574.23 05/12/17 4.67 1,569.56 7.08 0.77 1167 87.1 6.4 11.3 01/30/19 4.39 1,569.84 7.08 1.39 1152 170.5 9.4 8.3 MW-6 03/31/17 4.95 1,571.52 7.05 4.43 602 196.2 8.2 8.4 1576.47 05/12/17 4.95 1,571.52 7.32 3.77 587 90.3 3.4 10.9 01/30/19 4.98 1,571.49 7.29 6.26 647 164.3 4.1 9.4 Notes: 1Depth to water measured from the north side of the top of the well casing. 2Groundwater elevations were calculated through use of the following formula: Groundwater elevation = Top of Casing Elevation - Depth to Water. C = Celsius; NTU = nephelometric turbidity units; mg/L = milligrams per liter; µS/cm = microSiemens per centimeter Table A-1 Summary of Groundwater Elevations and Natural Attenuation Parameters Well Number and Top of Casing Elevation (feet) Date Measured Depth to Water1 (feet) Groundwater Elevation2 (feet) Kittitas County Lower Shop - 505 West 14th Avenue Ellensburg, Washington pH (pH units) Dissolved Oxygen (mg/L) Specific Conductivity (µS/cm) Redox Potential (millivolts) Turbidity (NTU) Temperature (degrees C) File No. 0504-119-01 Table A-1 | March 7, 2019 1 of 1 GRPH2 DRPH3 ORPH4 (µg/L)(mg/L)(mg/L) MW-1 03/31/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 1577.64 05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- MW-2 03/31/17 490 <0.26 <0.43 1.5 <1.0 3.3 <1.0 4.6 5.4 <1.0 1577.08 05/12/17 200 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 01/30/19 <150 ----<4.0 <1.0 <1.0 <1.0 <2.0 <3.0 -- MW-3 03/31/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 1577.02 05/12/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- MW-4 03/31/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 1576.72 05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- MW-5 03/31/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 1574.23 05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- MW-6 03/31/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 1576.47 05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- DUP:051217 (MW-3)05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 DUP:013019 (MW-2)01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- 1,000/8004 0.500 0.500 5 1,000 700 Notes: 1Chemical analyses conducted by TestAmerica Laboratories, Inc. located in Spokane Valley, Washington. 2Gasoline-range petroleum hydrocarbons (GRPH) were analyzed by Northwest Method NWTPH-Gx. 3Diesel- and oil-range petroleum hydrocarbons (DRPH and ORPH, respectively) were analyzed by Northwest Method NWTPH-Dx 4BTEX were analyzed by EPA 8260. 5Cleanup level is 1,000 µg/L; 800 µg/L when benzene is detected. 6Cleanup level for total xylenes (o-xylene and m,p-xylene) is 1,000 µg/L. Concentrations were summed to determine compliance. Bold = detection is greater than reporting limit; EPA = Environmental Protection Agency; MTBE = methyl tert-butyl ether; MTCA = Model Toxics Control Act mg/L = milligrams per liter; µg/L = micrograms per liter; NA = not analyzed; MTCA = Model Toxics Control Act; NE = not established; Volatile Organic Compounds (µg/L)4 Benzene 1,0005 MTBE Table A-2 MTCA Method A Cleanup Levels Toluene Ethylbenzene o-Xylene m,p-Xylenes Total Xylenes Summary of Chemical Analytical Test Results1 – Groundwater Kittitas County Lower Shop - 505 West 14th Avenue Ellensburg, WA Well Number and Top of Casing Elevation (feet) Date Measured Petroleum-Range Hydrocarbons File No. 0504-119-01 Table A-2 | March 7, 2019 1 of 1 APPENDIX B Chemical Analytical Laboratory Data March 7, 2019 | Page B-1 File No. 0504-119-01 APPENDIX B CHEMICAL ANALYTICAL DATA This report documents the results of a United States Environmental Protection Agency (EPA)-defined Stage 2A data validation (EPA Document 540-R-08-005; EPA, 2009) of analytical data from the analyses of water samples collected as part of the January 2019 sampling event, and the associated laboratory and field quality control (QC) samples. The samples were obtained from the Kittitas County Lower Shop site located at 505 West 14th Avenue in Ellensburg, Washington. OBJECTIVE AND QUALITY CONTROL ELEMENTS GeoEngineers, Inc. (GeoEngineers) completed the data validation consistent with the EPA Contract Laboratory Program National Functional for Organic Superfund Methods Data Review (EPA, 2017) (National Functional Guidelines) to determine if the laboratory analytical results meet the project objectives and are usable for their intended purpose. Data usability was assessed by determining if: ■ The samples were analyzed using well-defined and acceptable methods that provide reporting limits below applicable regulatory criteria; ■ The precision and accuracy of the data are well-defined and sufficient to provide defensible data; and ■ The quality assurance/quality control (QA/QC) procedures utilized by the laboratory meet acceptable industry practices and standards. The data validation included review of the following QC elements: ■ Data Package Completeness ■ Chain-of-Custody Documentation ■ Holding Times and Sample Preservation ■ Surrogate Recoveries ■ Method and Trip Blanks ■ Matrix Spikes/Matrix Spike Duplicates ■ Laboratory Control Samples/Laboratory Control Sample Duplicates ■ Field Duplicates VALIDATED SAMPLE DELIVERY GROUPS This data validation included review of the sample delivery group (SDG) listed below in Table 1. TABLE 1. SUMMARY OF VALIDATED SAMPLE DELIVERY GROUPS Laboratory SDG Samples Validated 590-10350-1 MW-1:013019, MW-2:013019, MW-3:013019, DUP:013019, MW-4:013019, MW-5:013019, MW-6:013019, Trip Blank March 7, 2019 | Page B-2 File No. 0504-119-01 CHEMICAL ANALYSIS PERFORMED TestAmerica Laboratories, Inc. (TestAmerica), located in Spokane Valley, Washington, performed laboratory analyses on the samples using one or more of the following methods: ■ Gasoline-Range Hydrocarbons (NWTPH-Gx) by Method NWTPH-Gx; and ■ Volatile Organic Compounds (VOCs) by Method EPA 8260C DATA VALIDATION SUMMARY The results for each of the QC elements are summarized below. Data Package Completeness TestAmerica provided the required deliverables for the data validation according to the National Functional Guidelines. The laboratory followed adequate corrective action processes and the identified anomalies were discussed in the relevant laboratory case narrative. Chain-of-Custody Documentation Chain-of-custody (COC) forms were provided with the laboratory analytical reports. The COCs were accurate and complete when submitted to the laboratory. Holding Times and Sample Preservation The sample holding time is defined as the time that elapses between sample collection and sample analysis. Maximum holding time criteria exist for each analysis to help ensure that the analyte concentrations found at the time of analysis reflect the concentration present at the time of sample collection. Established holding times were met for each analysis. The sample cooler arrived at the laboratory within the appropriate temperatures of between 2 and 6 degrees Celsius. Surrogate Recoveries A surrogate compound is a compound that is chemically similar to the organic analytes of interest, but unlikely to be found in an environmental sample. Surrogates are used for organic analyses and are added to the samples, standards and blanks to serve as an accuracy and specificity check of each analysis. The surrogates are added to the samples at a known concentration and percent recoveries are calculated following analysis. The surrogate percent recoveries for field samples were within the laboratory control limits. Method and Trip Blanks Method Blanks Method blanks are analyzed to ensure that laboratory procedures and reagents do not introduce measurable concentrations of the analytes of interest. A method blank was analyzed with each batch of samples, at a frequency of 1 per 20 samples. For each sample batch, method blanks for the applicable methods were analyzed at the required frequency. None of the analytes of interest were detected in the method blanks. March 7, 2019 | Page B-3 File No. 0504-119-01 Trip Blanks Trip blanks are analyzed to provide an indication as to whether volatile compounds have cross-contaminated other like samples within the transportation process to the laboratory. None of the analytes of interest were detected in the trip blank. Matrix Spikes/Matrix Spike Duplicates Since the actual analyte concentration in an environmental sample is not known, the accuracy of a particular analysis is usually inferred by performing a matrix spike (MS) analysis on one sample from the associated batch, known as the parent sample. One aliquot of the sample is analyzed in the normal manner and then a second aliquot of the sample is spiked with a known amount of analyte concentration and analyzed. From these analyses, a percent recovery is calculated. Matrix spike duplicate (MSD) analyses are generally performed for organic analyses as a precision check and analyzed in the same sequence as a matrix spike. Using the result values from the MS and MSD, the relative percent difference (RPD) is calculated. A laboratory control sample/laboratory control sample duplicate (LCS/LCSD) sample set was performed in lieu of a MS/MSD analysis. Laboratory Control Samples/Laboratory Control Sample Duplicates A laboratory control sample (LCS) is a blank sample that is spiked with a known amount of analyte and then analyzed. An LCS is similar to an MS, but without the possibility of matrix interference. Given that matrix interference is not an issue, the LCS/LCSD control limits for accuracy and precision are usually more rigorous than for MS/MSD analyses. Additionally, data qualification based on LCS/LCSD analyses would apply to all samples in the associated batch, instead of just the parent sample. The percent recovery control limits for LCS and LCSD analyses are specified in the laboratory documents, as are the RPD control limits for LCS/LCSD sample sets. One LCS/LCSD analysis should be performed for every analytical batch or every 20 field samples, whichever is more frequent. The frequency requirements were met for all analyses and the percent recovery and RPD values were within the proper control limits. FIELD DUPLICATES In order to assess precision, field duplicate samples were collected and analyzed along with the reviewed sample batches. The duplicate samples were analyzed for the same parameters as the associated parent samples. Precision is determined by calculating the RPD between each pair of samples. If one or more of the sample analytes has a concentration less than five times the reporting limit for that sample, then the absolute difference is used instead of the RPD. The RPD control limit for groundwater samples is 35 percent. SDG 590-10350-1: One field duplicate sample pair, MW-3:013019 and DUP:013019, was submitted with this SDG. The precision criteria for all target analytes were met for this sample pair. March 7, 2019 | Page B-4 File No. 0504-119-01 OVERALL ASSESSMENT As was determined by this data validation, the laboratory followed the specified analytical methods. Accuracy was acceptable, as demonstrated by the surrogate and LCS/LCSD percent recovery values. Precision was acceptable, as demonstrated by the LCS/LCSD and field duplicate RPD values. No analytical results were qualified. The data are acceptable for the intended use. REFERENCES U.S. Environmental Protection Agency (EPA). “Guidance for Labeling Externally Validated Laboratory Analytical Data for Superfund Use,” EPA-540-R-08-005. January 2009. U.S. Environmental Protection Agency (EPA). “Contract Laboratory Program National Functional Guidelines for Organic Superfund Methods Data Review,” EPA-540-R-2017-002. January 2017. ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Spokane 11922 East 1st Ave Spokane, WA 99206 Tel: (509)924-9200 TestAmerica Job ID: 590-10350-1 Client Project/Site: Kittitas County Shop/0504-119-00 For: GeoEngineers Inc 523 East Second Ave Spokane, Washington 99202 Attn: Mr. Justin Rice Authorized for release by: 2/12/2019 1:18:23 PM Randee Arrington, Project Manager II (509)924-9200 randee.arrington@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 Table of Contents Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 TestAmerica Job ID: 590-10350-1 Page 2 of 17 TestAmerica Spokane 2/12/2019 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 1 2 3 4 5 6 7 8 9 10 11 12 Case Narrative Client: GeoEngineers Inc TestAmerica Job ID: 590-10350-1 Project/Site: Kittitas County Shop/0504-119-00 Job ID: 590-10350-1 Laboratory: TestAmerica Spokane Narrative Receipt The samples were received on 2/1/2019 10:50 AM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was 2.5º C. GC/MS VOA No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. VOA Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. TestAmerica Spokane Page 3 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Sample Summary TestAmerica Job ID: 590-10350-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID Client Sample ID ReceivedCollectedMatrix 590-10350-1 MW-1:013019 Water 01/30/19 08:40 02/01/19 10:50 590-10350-2 MW-2:013019 Water 01/30/19 12:06 02/01/19 10:50 590-10350-3 MW-3:013019 Water 01/30/19 09:18 02/01/19 10:50 590-10350-4 MW-4:013019 Water 01/30/19 10:09 02/01/19 10:50 590-10350-5 MW-5:013019 Water 01/30/19 10:50 02/01/19 10:50 590-10350-6 MW-6:013019 Water 01/30/19 11:25 02/01/19 10:50 590-10350-7 DUP:013019 Water 01/30/19 12:00 02/01/19 10:50 590-10350-8 Trip Blank Water 01/30/19 08:00 02/01/19 10:50 TestAmerica Spokane Page 4 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Definitions/Glossary TestAmerica Job ID: 590-10350-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TestAmerica Spokane Page 5 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-10350-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID: 590-10350-1Client Sample ID: MW-1:013019 Matrix: WaterDate Collected: 01/30/19 08:40 Date Received: 02/01/19 10:50 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 02/05/19 19:29 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1.0 ug/L 02/05/19 19:29 1EthylbenzeneND 2.0 ug/L 02/05/19 19:29 1m,p-Xylene ND 1.0 ug/L 02/05/19 19:29 1o-Xylene ND 1.0 ug/L 02/05/19 19:29 1TolueneND 3.0 ug/L 02/05/19 19:29 1Xylenes, Total ND 1,2-Dichloroethane-d4 (Surr)111 70 -125 02/05/19 19:29 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr)103 02/05/19 19:29 169-120 Dibromofluoromethane (Surr)105 02/05/19 19:29 180-120 Toluene-d8 (Surr)100 02/05/19 19:29 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 02/05/19 19:29 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 4-Bromofluorobenzene (Surr)103 68.7 -141 02/05/19 19:29 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 590-10350-2Client Sample ID: MW-2:013019 Matrix: WaterDate Collected: 01/30/19 12:06 Date Received: 02/01/19 10:50 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 02/05/19 19:50 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1.0 ug/L 02/05/19 19:50 1EthylbenzeneND 2.0 ug/L 02/05/19 19:50 1m,p-Xylene ND 1.0 ug/L 02/05/19 19:50 1o-Xylene ND 1.0 ug/L 02/05/19 19:50 1TolueneND 3.0 ug/L 02/05/19 19:50 1Xylenes, Total ND 1,2-Dichloroethane-d4 (Surr)108 70 -125 02/05/19 19:50 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr)106 02/05/19 19:50 169-120 Dibromofluoromethane (Surr)103 02/05/19 19:50 180-120 Toluene-d8 (Surr)100 02/05/19 19:50 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 02/05/19 19:50 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 4-Bromofluorobenzene (Surr)106 68.7 -141 02/05/19 19:50 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery TestAmerica Spokane Page 6 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-10350-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID: 590-10350-3Client Sample ID: MW-3:013019 Matrix: WaterDate Collected: 01/30/19 09:18 Date Received: 02/01/19 10:50 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 02/05/19 20:11 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1.0 ug/L 02/05/19 20:11 1EthylbenzeneND 2.0 ug/L 02/05/19 20:11 1m,p-Xylene ND 1.0 ug/L 02/05/19 20:11 1o-Xylene ND 1.0 ug/L 02/05/19 20:11 1TolueneND 3.0 ug/L 02/05/19 20:11 1Xylenes, Total ND 1,2-Dichloroethane-d4 (Surr)110 70 -125 02/05/19 20:11 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr)107 02/05/19 20:11 169-120 Dibromofluoromethane (Surr)106 02/05/19 20:11 180-120 Toluene-d8 (Surr)98 02/05/19 20:11 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 02/05/19 20:11 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 4-Bromofluorobenzene (Surr)107 68.7 -141 02/05/19 20:11 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 590-10350-4Client Sample ID: MW-4:013019 Matrix: WaterDate Collected: 01/30/19 10:09 Date Received: 02/01/19 10:50 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 02/05/19 20:32 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1.0 ug/L 02/05/19 20:32 1EthylbenzeneND 2.0 ug/L 02/05/19 20:32 1m,p-Xylene ND 1.0 ug/L 02/05/19 20:32 1o-Xylene ND 1.0 ug/L 02/05/19 20:32 1TolueneND 3.0 ug/L 02/05/19 20:32 1Xylenes, Total ND 1,2-Dichloroethane-d4 (Surr)111 70 -125 02/05/19 20:32 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr)102 02/05/19 20:32 169-120 Dibromofluoromethane (Surr)105 02/05/19 20:32 180-120 Toluene-d8 (Surr)99 02/05/19 20:32 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 02/05/19 20:32 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 4-Bromofluorobenzene (Surr)102 68.7 -141 02/05/19 20:32 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery TestAmerica Spokane Page 7 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-10350-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID: 590-10350-5Client Sample ID: MW-5:013019 Matrix: WaterDate Collected: 01/30/19 10:50 Date Received: 02/01/19 10:50 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 02/05/19 20:53 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1.0 ug/L 02/05/19 20:53 1EthylbenzeneND 2.0 ug/L 02/05/19 20:53 1m,p-Xylene ND 1.0 ug/L 02/05/19 20:53 1o-Xylene ND 1.0 ug/L 02/05/19 20:53 1TolueneND 3.0 ug/L 02/05/19 20:53 1Xylenes, Total ND 1,2-Dichloroethane-d4 (Surr)112 70 -125 02/05/19 20:53 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr)104 02/05/19 20:53 169-120 Dibromofluoromethane (Surr)103 02/05/19 20:53 180-120 Toluene-d8 (Surr)96 02/05/19 20:53 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 02/05/19 20:53 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 4-Bromofluorobenzene (Surr)104 68.7 -141 02/05/19 20:53 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 590-10350-6Client Sample ID: MW-6:013019 Matrix: WaterDate Collected: 01/30/19 11:25 Date Received: 02/01/19 10:50 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 02/05/19 21:14 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1.0 ug/L 02/05/19 21:14 1EthylbenzeneND 2.0 ug/L 02/05/19 21:14 1m,p-Xylene ND 1.0 ug/L 02/05/19 21:14 1o-Xylene ND 1.0 ug/L 02/05/19 21:14 1TolueneND 3.0 ug/L 02/05/19 21:14 1Xylenes, Total ND 1,2-Dichloroethane-d4 (Surr)110 70 -125 02/05/19 21:14 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr)103 02/05/19 21:14 169-120 Dibromofluoromethane (Surr)103 02/05/19 21:14 180-120 Toluene-d8 (Surr)99 02/05/19 21:14 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 02/05/19 21:14 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 4-Bromofluorobenzene (Surr)103 68.7 -141 02/05/19 21:14 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery TestAmerica Spokane Page 8 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Client Sample Results TestAmerica Job ID: 590-10350-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Lab Sample ID: 590-10350-7Client Sample ID: DUP:013019 Matrix: WaterDate Collected: 01/30/19 12:00 Date Received: 02/01/19 10:50 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 02/05/19 21:35 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1.0 ug/L 02/05/19 21:35 1EthylbenzeneND 2.0 ug/L 02/05/19 21:35 1m,p-Xylene ND 1.0 ug/L 02/05/19 21:35 1o-Xylene ND 1.0 ug/L 02/05/19 21:35 1TolueneND 3.0 ug/L 02/05/19 21:35 1Xylenes, Total ND 1,2-Dichloroethane-d4 (Surr)112 70 -125 02/05/19 21:35 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr)106 02/05/19 21:35 169-120 Dibromofluoromethane (Surr)101 02/05/19 21:35 180-120 Toluene-d8 (Surr)96 02/05/19 21:35 180-120 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) RL MDL Gasoline ND 150 ug/L 02/05/19 21:35 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 4-Bromofluorobenzene (Surr)106 68.7 -141 02/05/19 21:35 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery Lab Sample ID: 590-10350-8Client Sample ID: Trip Blank Matrix: WaterDate Collected: 01/30/19 08:00 Date Received: 02/01/19 10:50 Method: 8260C - Volatile Organic Compounds by GC/MS RL MDL Benzene ND 0.40 ug/L 02/05/19 21:56 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1.0 ug/L 02/05/19 21:56 1EthylbenzeneND 2.0 ug/L 02/05/19 21:56 1m,p-Xylene ND 1.0 ug/L 02/05/19 21:56 1o-Xylene ND 1.0 ug/L 02/05/19 21:56 1TolueneND 3.0 ug/L 02/05/19 21:56 1Xylenes, Total ND 1,2-Dichloroethane-d4 (Surr)109 70 -125 02/05/19 21:56 1 Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery 4-Bromofluorobenzene (Surr)103 02/05/19 21:56 169-120 Dibromofluoromethane (Surr)105 02/05/19 21:56 180-120 Toluene-d8 (Surr)99 02/05/19 21:56 180-120 TestAmerica Spokane Page 9 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-10350-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Method: 8260C - Volatile Organic Compounds by GC/MS Client Sample ID: Method BlankLab Sample ID: MB 590-20817/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 20817 RL MDL Benzene ND 0.40 ug/L 02/05/19 15:58 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier ND 1.0 ug/L 02/05/19 15:58 1Ethylbenzene ND 2.0 ug/L 02/05/19 15:58 1m,p-Xylene ND 1.0 ug/L 02/05/19 15:58 1o-Xylene ND 1.0 ug/L 02/05/19 15:58 1Toluene ND 3.0 ug/L 02/05/19 15:58 1Xylenes, Total 1,2-Dichloroethane-d4 (Surr)109 70 -125 02/05/19 15:58 1 MB MB Surrogate Dil FacPrepared AnalyzedQualifier Limits%Recovery 104 02/05/19 15:58 14-Bromofluorobenzene (Surr)69 -120 104 02/05/19 15:58 1Dibromofluoromethane (Surr)80 -120 97 02/05/19 15:58 1Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-20817/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 20817 Benzene 10.0 11.7 ug/L 117 80 -120 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits Ethylbenzene 10.0 11.4 ug/L 114 80 -120 m,p-Xylene 10.0 11.4 ug/L 114 80 -120 o-Xylene 10.0 11.2 ug/L 112 80 -120 Toluene 10.0 10.8 ug/L 108 80 -123 1,2-Dichloroethane-d4 (Surr)70 -125 Surrogate 110 LCS LCS Qualifier Limits%Recovery 1024-Bromofluorobenzene (Surr)69 -120 102Dibromofluoromethane (Surr)80 -120 96Toluene-d8 (Surr)80 -120 Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 590-20817/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 20817 Benzene 10.0 11.4 ug/L 114 80 -120 2 25 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD Ethylbenzene 10.0 11.4 ug/L 114 80 -120 0 25 m,p-Xylene 10.0 11.1 ug/L 111 80 -120 3 25 o-Xylene 10.0 11.1 ug/L 111 80 -120 1 25 Toluene 10.0 10.8 ug/L 108 80 -123 1 25 1,2-Dichloroethane-d4 (Surr)70 -125 Surrogate 106 LCSD LCSD Qualifier Limits%Recovery 1024-Bromofluorobenzene (Surr)69 -120 103Dibromofluoromethane (Surr)80 -120 95Toluene-d8 (Surr)80 -120 TestAmerica Spokane Page 10 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 QC Sample Results TestAmerica Job ID: 590-10350-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Method: NWTPH-Gx - Northwest - Volatile Petroleum Products (GC/MS) Client Sample ID: Method BlankLab Sample ID: MB 590-20818/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 20818 RL MDL Gasoline ND 150 ug/L 02/05/19 15:58 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier 4-Bromofluorobenzene (Surr)104 68.7 -141 02/05/19 15:58 1 MB MB Surrogate Dil FacPrepared AnalyzedQualifier Limits%Recovery Client Sample ID: Lab Control SampleLab Sample ID: LCS 590-20818/1004 Matrix: Water Prep Type: Total/NA Analysis Batch: 20818 Gasoline 1000 1110 ug/L 111 80 -120 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec. Limits 4-Bromofluorobenzene (Surr)68.7 -141 Surrogate 100 LCS LCS Qualifier Limits%Recovery Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 590-20818/1014 Matrix: Water Prep Type: Total/NA Analysis Batch: 20818 Gasoline 1000 1120 ug/L 112 80 -120 1 20 Analyte LCSD LCSD DUnitResult Qualifier %Rec Spike Added %Rec. Limits LimitRPD RPD 4-Bromofluorobenzene (Surr)68.7 -141 Surrogate 101 LCSD LCSD Qualifier Limits%Recovery TestAmerica Spokane Page 11 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Lab Chronicle Client: GeoEngineers Inc TestAmerica Job ID: 590-10350-1 Project/Site: Kittitas County Shop/0504-119-00 Client Sample ID: MW-1:013019 Lab Sample ID: 590-10350-1 Matrix: WaterDate Collected: 01/30/19 08:40 Date Received: 02/01/19 10:50 Analysis 8260C MRS02/05/19 19:291 TAL SPK20817 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 20818 02/05/19 19:29 MRS TAL SPKTotal/NA 43 mL 43 mL Client Sample ID: MW-2:013019 Lab Sample ID: 590-10350-2 Matrix: WaterDate Collected: 01/30/19 12:06 Date Received: 02/01/19 10:50 Analysis 8260C MRS02/05/19 19:501 TAL SPK20817 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 20818 02/05/19 19:50 MRS TAL SPKTotal/NA 43 mL 43 mL Client Sample ID: MW-3:013019 Lab Sample ID: 590-10350-3 Matrix: WaterDate Collected: 01/30/19 09:18 Date Received: 02/01/19 10:50 Analysis 8260C MRS02/05/19 20:111 TAL SPK20817 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 20818 02/05/19 20:11 MRS TAL SPKTotal/NA 43 mL 43 mL Client Sample ID: MW-4:013019 Lab Sample ID: 590-10350-4 Matrix: WaterDate Collected: 01/30/19 10:09 Date Received: 02/01/19 10:50 Analysis 8260C MRS02/05/19 20:321 TAL SPK20817 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 20818 02/05/19 20:32 MRS TAL SPKTotal/NA 43 mL 43 mL Client Sample ID: MW-5:013019 Lab Sample ID: 590-10350-5 Matrix: WaterDate Collected: 01/30/19 10:50 Date Received: 02/01/19 10:50 Analysis 8260C MRS02/05/19 20:531 TAL SPK20817 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 20818 02/05/19 20:53 MRS TAL SPKTotal/NA 43 mL 43 mL Client Sample ID: MW-6:013019 Lab Sample ID: 590-10350-6 Matrix: WaterDate Collected: 01/30/19 11:25 Date Received: 02/01/19 10:50 Analysis 8260C MRS02/05/19 21:141 TAL SPK20817 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL TestAmerica Spokane Page 12 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Lab Chronicle Client: GeoEngineers Inc TestAmerica Job ID: 590-10350-1 Project/Site: Kittitas County Shop/0504-119-00 Client Sample ID: MW-6:013019 Lab Sample ID: 590-10350-6 Matrix: WaterDate Collected: 01/30/19 11:25 Date Received: 02/01/19 10:50 Analysis NWTPH-Gx MRS02/05/19 21:141 TAL SPK20818 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Client Sample ID: DUP:013019 Lab Sample ID: 590-10350-7 Matrix: WaterDate Collected: 01/30/19 12:00 Date Received: 02/01/19 10:50 Analysis 8260C MRS02/05/19 21:351 TAL SPK20817 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Analysis NWTPH-Gx 1 20818 02/05/19 21:35 MRS TAL SPKTotal/NA 43 mL 43 mL Client Sample ID: Trip Blank Lab Sample ID: 590-10350-8 Matrix: WaterDate Collected: 01/30/19 08:00 Date Received: 02/01/19 10:50 Analysis 8260C MRS02/05/19 21:561 TAL SPK20817 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 43 mL 43 mL Laboratory References: TAL SPK = TestAmerica Spokane, 11922 East 1st Ave, Spokane, WA 99206, TEL (509)924-9200 TestAmerica Spokane Page 13 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Accreditation/Certification Summary Client: GeoEngineers Inc TestAmerica Job ID: 590-10350-1 Project/Site: Kittitas County Shop/0504-119-00 Laboratory: TestAmerica Spokane All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Program EPA Region Identification Number Expiration Date Alaska (UST)17-02510State Program 03-07-19 Nevada State Program 9 WA012202019-1 07-31-19 Oregon NELAP 10 4137 12-07-19 Washington State Program 10 C569 01-06-20 TestAmerica Spokane Page 14 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Method Summary TestAmerica Job ID: 590-10350-1Client: GeoEngineers Inc Project/Site: Kittitas County Shop/0504-119-00 Method Method Description LaboratoryProtocol SW8468260CVolatile Organic Compounds by GC/MS TAL SPK NWTPHNWTPH-Gx Northwest - Volatile Petroleum Products (GC/MS)TAL SPK SW8465030CPurge and Trap TAL SPK Protocol References: NWTPH = Northwest Total Petroleum Hydrocarbon SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: TAL SPK = TestAmerica Spokane, 11922 East 1st Ave, Spokane, WA 99206, TEL (509)924-9200 TestAmerica Spokane Page 15 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Page 16 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 Login Sample Receipt Checklist Client: GeoEngineers Inc Job Number: 590-10350-1 Login Number: 10350 Question Answer Comment Creator: Arrington, Randee E List Source: TestAmerica Spokane List Number: 1 N/ARadioactivity wasn't checked or is </= background as measured by a survey meter. Lab does not accept radioactive samples. N/AThe cooler's custody seal, if present, is intact. N/ASample custody seals, if present, are intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. TrueSamples were received on ice. TrueCooler Temperature is acceptable. TrueCooler Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. TrueIs the Field Sampler's name present on COC? TrueThere are no discrepancies between the containers received and the COC. TrueSamples are received within Holding Time (excluding tests with immediate HTs) TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. TrueSample bottles are completely filled. N/ASample Preservation Verified. TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs TrueContainers requiring zero headspace have no headspace or bubble is <6mm (1/4"). TrueMultiphasic samples are not present. TrueSamples do not require splitting or compositing. N/AResidual Chlorine Checked. TestAmerica Spokane Page 17 of 17 2/12/2019 1 2 3 4 5 6 7 8 9 10 11 12 APPENDIX C Report Limitations and Guidelines for Use C- March 7, 2019| Page C-1 File No. 0504-119-01 APPENDIX C REPORT LIMITATIONS AND GUIDELINES FOR USE 1 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 This report has been prepared for the exclusive use of the Washington State Department of Ecology (Ecology). This report is not intended for use by others, and the information contained herein is not applicable to other sites. GeoEngineers structures our services to meet the specific needs of our clients. For example, an environmental site assessment 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 project site. No one except Ecology should rely on this environmental report without first conferring with GeoEngineers. This report should not be applied 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 Kittitas County Lower Shop located at 505 West 14th Avenue in Ellensburg, 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, do not 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 after the date of this report, GeoEngineers should be given the opportunity to review our interpretations and recommendations and provide written modifications or confirmation, as appropriate. Reliance Conditions for Third Parties Our report was prepared for the exclusive use of Ecology. No other party may rely on the product of our services unless we agree in advance to such reliance in writing. This is to provide our firm and Ecology 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 Ecology and generally accepted environmental practices in this area at the time this report was prepared. 1 Developed based on material provided by ASFE, Professional Firms Practicing in the Geosciences; www.asfe.org. C- March 7, 2019| Page C-2 File No. 0504-119-01 Environmental Regulations are Always Evolving Some substances may be present in the site vicinity in quantities or under conditions that may have led, or may lead, to contamination of the subject site, 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 substance, change or if more stringent environmental standards are developed in the future. Uncertainty May Remain Even After This Phase II ESA is Completed No ESA can wholly eliminate uncertainty regarding the potential for contamination in connection with a property. 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. 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 manmade events such as construction on or adjacent to the site, by new releases of hazardous substances, or by natural events such as floods, earthquakes, slope instability or groundwater fluctuations. Always contact GeoEngineers before applying this report to determine if it is still applicable. 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 site. Site exploration identifies subsurface conditions only at those points where subsurface tests are conducted or samples are taken. GeoEngineers reviewed field and laboratory data and then applied our professional judgment to render an opinion about subsurface conditions throughout the site. 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. Do Not Redraw the Exploration Logs Environmental scientists prepare final boring and testing logs based upon their interpretation of field logs and laboratory data. To prevent errors or omissions, the logs included in an environmental report should never be redrawn for inclusion in other design drawings. Only photographic or electronic reproductions are acceptable but recognize that separating logs from the report can elevate risk. Read These Provisions Closely Some clients, design professionals and contractors may not recognize that the geoscience practices (geotechnical engineering, geology and environmental science) are far less exact than other engineering and natural science disciplines. This lack of understanding can create unrealistic 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 are unclear how these “Report Limitations and Guidelines for Use” apply to your project or site. C- March 7, 2019| Page C-3 File No. 0504-119-01 Geotechnical, Geologic and Geoenvironmental Reports Should Not be Interchanged The equipment, techniques and personnel used to perform an environmental study differ significantly from those used to perform a geotechnical or geologic study and vice versa. For that reason, a geotechnical engineering or geologic report does not usually relate any environmental findings, conclusions or recommendations; e.g., about the likelihood of encountering underground storage tanks or regulated contaminants. Similarly, environmental reports are not used to address geotechnical or geologic concerns regarding a specific project. 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. If Ecology desires these specialized services, they should be obtained from a consultant who offers services in this specialized field. GEOENGINEERS�