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21-101296 -Soils Report-04-02-2021-V1 214 EAST GALER STREET, SUITE 3 00, SEATTLE, WA 98102  206.233.9639 MAIN  866.727.0140 FAX  PBSUSA.COM September 16, 2020 Federal Way Public Schools Capital Projects 1211 S 232nd St Federal Way, WA 98004 Email: fwpscp18@fwps.org RE: Olympic View Elementary School – Arsenic and Lead Soil Sampling 2626 SW 327th Street, Federal Way, Washington PBS Project #41519.008 Federal Way Public Schools (FWPS) contracted PBS Engineering and Environmental Inc. (PBS) to evaluate the potential for arsenic and lead contaminants in near surface soils at the site of Olympic View Elementary School (OLV) prior to site redevelopment as part of the Olympic View Elementary School Replacement Project. On September 1, 2020 PBS performed soil sampling activities to determine the levels of arsenic and lead in shallow soil at OLV in Federal Way, Washington (Figure 1). This report presents the findings of the sampling activities and provides recommendations for regulatory compliance as well as for the handling and management of impacted soils during future redevelopment. The scope of services was presented in the Proposal for Arsenic and Lead Soil Testing (WA31072) by PBS, dated August 17, 2020. BACKGROUND OLV is located within the widespread soil contamination plume of the former Asarco smelter operation. The Asarco Company operated a copper smelter in Tacoma from 1890 to 1985. Smelter operations emitted an airborne plume of particulates with arsenic, lead, and other heavy metals that were distributed over a wide region of the Puget Sound. As a result, these metals have been found in near surface soils at concentrations which may pose a threat to human health and/or the environment. Ecology’s Tacoma Smelter Plume Model Remedies Guidance (Smelter Plume Guidance) recommends soil sampling at properties in areas with estimated arsenic levels above the state cleanup level of 20 parts per million (ppm)1. Ecology’s Dirt Alert website 2 maps the site within an area of predicted arsenic concentrations ranging from 20 to 40 ppm. Thus, the 20 to 40 ppm range can be considered the “baseline” for arsenic concentrations in near surface soils expected on site. Based on the predicted arsenic concentration at the site and the approximate 9.5-acre area of the parcel, the Smelter Plume Guidance recommends samples be collected from a minimum of 44 locations. REGULATORY CRITERIA Per the Smelter Plume Guidance “if arsenic or lead levels are elevated for any decision unit on the property, that decision unit needs cleanup.” Per the Smelter Plume Guidance, elevated is defined as: • Average arsenic > 20 ppm, equivalent to milligrams per kilogram (mg/kg) or average lead > 250 ppm; or • Maximum (any one sample) arsenic > 40 ppm or maximum lead > 500 ppm. 1 “Tacoma Smelter Plume Model Remedies Guidance: Sampling and cleanup of arsenic and lead contaminated soils”, Washington State Department of Ecology, July 2019, Publication No. 19-09-101 2 https://apps.ecology.wa.gov/dirtalert/ Federal Way Public Schools Olympic View Elementary School Arsenic and Lead Sampling Report September 16, 2020 Page 2 41519.008 Ecology’s Model Toxics Control Act (MTCA) has established cleanup levels for arsenic and lead for unrestricted land use that are protective of human health and the environment 3. Ecology’s MTCA Method A cleanup levels (CULs) for unrestricted land use for arsenic and lead are applicable for comparison to any single soil sample concentration. The CULs for arsenic and lead are presented below: • The CUL for arsenic is 20 milligrams per kilogram (mg/kg) • The CUL for lead is 250 mg/kg. Based on the land use as a school, FWPS has elected to clean up site soils found to be in exceedance of CULs, even if the soils are not defined as elevated per the Smelter Plume Guidance. CHARACTERIZATION SOIL SAMPLING On September 1, 2020, fifty-five (55) discrete soil samples were collected from forty-four (44) locations around the building landscaping and playfields of OLV. Following Ecology guidance, the property was divided into two decision units based on current use as playfield or landscaped area. Decision units and sample locations are shown on Figure 2. A summary of the decision units is provided below. The number of samples collected for analysis per decision unit for this project is based on the Smelter Plume Guidance. Decision Units Decision Unit ID Soil disturbance planned? Number of samples collected (0-6”) Number of samples collected (6-12”) Acres (approximate) Total Number of Samples 1 unknown 24 6 4.5 30 2 unknown 20 5 5 25 0-6” = Soil samples were collected from the 0-6 inch depth interval 6-12” = Soil samples were collected from the 6-12 inch depth interval Per the Smelter Plume Guidance, one (1) discrete sample was collected at each sample location from a depth interval of 0 to 6 inches below ground surface (bgs). A second discrete sample was collected at every fourth location from a depth interval of 6 to 12 inches bgs. Sample locations were chosen in a manner that maximized coverage of the decision units and did not contain areas with surface cover or buildings during the sampling activities. Soil sample collection started just below any surface cover layer (e.g., sod or grass). A hand spade and a hand auger were used to complete 6-inch deep test holes. A soil sample was collected at a depth of less than 6 inches below ground surface at each location. At every fourth location, upon collection of the 0- to 6-inch sample, the hole was advanced to a depth of 12 inches, and a second sample was collected from the 6- to 12-inch depth interval using the same methods described above. PBS personnel wore disposable nitrile gloves to protect against cross-contamination between samples. Soil retained for analysis was packed into laboratory-provided containers, labeled and transported on ice under chain of custody documentation to Friedman and Bruya, Inc. in Seattle, an Ecology accredited analytical laboratory. 3 “Model Toxics Control Act Regulation and Statute”, Washington State Department of Ecology, 2013 Revision, Publication No. 94-06 Federal Way Public Schools Olympic View Elementary School Arsenic and Lead Sampling Report September 16, 2020 Page 3 41519.008 Samples were analyzed for total arsenic and lead using EPA Method 6020. Total arsenic and lead results were reported on a dry weight basis. ANALYTIC RESULTS Analytical results from soil samples collected on site are below MTCA Method A CULs for arsenic, except for one (1) sample from a single location (Sample ID: 2-02) on the eastern side of Decision Unit 2 adjacent to 26th Avenue SW (See Figure 2). The sample collected from 0 to 6 inches bgs at location 2-02 contained arsenic at a concentration of 53.1 mg/kg. The concentration is both in exceedance of the CUL and considered elevated per the Smelter Plume Guidance. All other sample results for arsenic were below the MTCA Method A cleanup level of 20 mg/kg. All analytical results for lead from soil samples collected on-site are below the MTCA Method A cleanup level of 250 mg/kg. Based on the analytical results of soil samples collected on-site, average arsenic and lead concentrations were calculated for each decision unit and are presented below. Average Concentrations per Decision Unit Decision Unit ID Mean Concentration (0-6”) Mean Concentration (6-12”) As Pb As Pb 1 4.48 22.19 3.20 5.98 2 8.89 20.12 4.59 13.49 MTCA A Cleanup Level 20 250 20 250 (0-6”) (Pb / As) = Average Concentration at the 0 to 6-inch interval for arsenic (As) and lead (Pb) in mg/kg (6-12”) (Pb / As) = Average Concentration at the 6 to 12-inch interval for arsenic (As) and lead (Pb) in mg/kg Analytical results from soil samples collected on-site are summarized in Table 1. Figure 2 depicts the decision unit boundaries and the locations where analytical results indicated lead or arsenic concentrations above MTCA Method A CULs. Laboratory reports are provided in Attachment A. Federal Way Public Schools Olympic View Elementary School Arsenic and Lead Sampling Report September 16, 2020 Page 4 41519.008 CONCLUSIONS Based on the analytical results of the soil sampling, and using Ecology’s Tacoma Smelter Plume Model Remedy Guidance, June 2019, the following conclusion and recommendations were made regarding the handling and management of project site soils. Decision Unit 1 No further action is advised within Decision Unit 1 based on the results of soil sampling conducted on September 1, 2020. Decision Unit 2 Analytical results from the discrete soil sample collected at sample location 2-02 indicated arsenic concentrations are above MTCA Method A CULs and Smelter Plume Guidance elevated levels in the top 6” bgs. A deeper sample was not collected in this location. Further action will be required to address the arsenic concentrations in soil at the above referenced location and achieve compliance with Ecology regulations. According to Ecology’s Model Remedies Guidance, the impacted soil can be managed in-place or removed by excavation. Strategies for management of impacted soil in-place include dilution of arsenic concentrations via mixing of impacted soil with clean imported soil or capping of soil in place with clean soil and a geotextile or a hard cap. Mixing of soils is accepted for arsenic-impacted soil with an average concentration less than 40 ppm. Ecology does not consider capping in-place a permanent remediation strategy given the potential for exposure if the cap is removed. Capping in-place may require annual inspection of the cap’s integrity, as well as the filing of an environmental land covenant for the property. Based on average arsenic concentrations within Decision Unit 2 mixing in place is proposed as the preferred model remedy at the site. PBS recommends additional sampling to further delineate the lateral and vertical extents of elevated arsenic concentrations in the vicinity of sample location 2-02. Remediation of impacted soils can be conducted by the contractor as part of the Olympic View Elementary School Replacement Project under PBS’s supervision, but must be completed prior to any grading, excavation or earthwork activities that disturb on-site soil. The construction design and specifications for remediation of the arsenic-impacted soil as part of the Olympic View Elementary School Replacement Project shall incorporate health and safety requirements, methods for soil removal, disposal and confirmation sampling and soil management strategies. LIMITATIONS This investigation was conducted to characterize lead and arsenic distributions in shallow soils on-site, with a focus on protection of human health and the environment. The data collected in this investigation are not intended for the purposes of waste profiling for offsite disposal, or for estimation of volume or tonnage of soil requiring disposal. PBS has prepared this report for use by FWPS. This report is not intended for use by others without the written consent of the FWPS. Our interpretation of soil conditions in this study was based on field observations and analytical data from the indicated explorations. Regulated substances may exist in portions of the site that were Federal Way Public Schools Olympic View Elementary School Arsenic and Lead Sampling Report September 16, 2020 Page 5 41519.008 not explored or analyzed. The conclusions in this report are not to be considered a legal opinion as the client’s duty concerning due diligence relating to potential liabilities in leasing, owning, or purchasing real estate. PBS ENGINEERING AND ENVIRONMENTAL INC. James Welles, LG Project Geologist Reviewed By: Melanie Young, PE Senior Environmental Engineer Attachments: Figure 1: Vicinity Map Figure 2: Sample Location Map Table 1: Laboratory Data Summary Table Attachment A: Laboratory Data Figures PROJECT LOCATION 0' 1,000' 2,000'4,000' SCALE 1" = 2000' SOURCE: USGS POVERTY BAY, WA QUADRANGLE 2020. FEDERAL WAY WASHINGTON VANCOUVER SEATTLE SITE FIGURE Filename: \\pbsenv.lan\l\Projects\41000\41519 Federal Way Public Schools\41519.008 Olympic View K-8\DWG\41519.008_Fig_1-3.dwg Layout Tab: VICINITY MAP User: Katie Breyman CAD Plot Date/Time: 9/14/2020 12:55:24 PMPREPARED FOR: FEDERAL WAY PUBLIC SCHOOLS SEP 2020 41519.008 1 OLYMPIC VIEW ELEMENTARY SCHOOL VICINITY MAP 2626 SW 327TH STREET FEDERAL WAY, WASHINGTON OLYMPIA 1-01 1-02 1-03 1-081-071-06 1-09 1-10 1-12 2-011-151-141-13 1-17 1-211-201-19 1-23 1-24 2-09 2-11 2-10 2-16 2-13 2-14 2-17 2-18 2-20 2-08 2-05 2-06 2-03 2-04 1-04 1-05 1-11 1-16 1-18 1-22 2-07 2-12 2-15 2-19 2-02 FIGURE Filename: L:\Projects\41000\41519 Federal Way Public Schools\41519.008 Olympic View K-8\DWG\41519.008_Fig_1-3.dwg Layout Tab: SITE PLAN User: Katie Breyman CAD Plot Date/Time: 9/15/2020 11:57:32 AMPREPARED FOR: FEDERAL WAY PUBLIC SCHOOLS FEDERAL WAY, WASHINGTON SEP 2020 41519.008 2 OLYMPIC VIEW ELEMENTARY SCHOOL As / Pb SOIL SAMPLE LOCATION MAP 2626 SW 327TH STREET 0' 50' 100'200' SCALE 1" = 100' LEGEND SOURCE: © 2018 GOOGLE EARTH PRO 1-04 1-01 SOIL SAMPLE LOCATION, DECISION UNIT AND IDENTIFICATION (0-6", 6-12"), As/Pb < MTCA SOIL SAMPLE LOCATION, DECISION UNIT AND IDENTIFICATION (0-6"), As/Pb < MTCA 2-02 SOIL SAMPLE LOCATION, DECISION UNIT AND IDENTIFICATION (0-6"), As > MTCA Tables TABLE 1 SOIL ANALYTICAL RESULTS Olympic View Elementary School 2626 SW 327th Street, Federal Way, Washington PBS Project No. 41519.008 Arsenic Lead inches bgs mg/kg mg/kg 1-01 0-6 4.34 9.22 1-02 0-6 3.95 9.98 1.03 0-6 3.81 13.4 1-04a 0-6 3.33 7.03 1-05a 0-6 <5 8.63 1-06 0-6 <5 9.16 1-07 0-6 2.90 7.76 1-08 0-6 3.14 7.18 1-09 0-6 3.93 8.35 1-10 0-6 1.81 3.88 1-11a 0-6 3.80 8.28 1-12 0-6 3.51 9.88 1-13 0-6 5.11 12.5 1-14 0-6 5.84 10.8 1-15 0-6 5.67 16.4 1-16a 0-6 3.75 6.47 1-17 0-6 4.14 7.03 1-18a 0-6 16.0 27.9 1-19 0-6 3.08 5.83 1-20 0-6 3.38 6.31 1-21 0-6 <5 231 1-22a 0-6 3.62 7.16 1-23 0-6 6.18 62.1 1-24 0-6 7.22 43.6 4.69 22.49 1-04b 6-12 3.07 8.54 1-05b 6-12 3.41 8.24 1-11b 6-12 2.34 5.83 1-16b 6-12 2.36 2.52 1-18b 6-12 4.35 5.01 1-22b 6-12 4.03 6.34 3.26 6.08 2-01 0-6 4.1 7.02 2-02 0-6 53.1 84.1 2-03 0-6 6.33 9.37 2-04a 0-6 5.35 9.59 2-05 0-6 6.21 14.6 2-06 0-6 4.18 9.65 2-07a 0-6 3.51 10.2 2-08 0-6 3.77 14.5 2-09 0-6 11.6 23.1 2-10 0-6 13.4 23.5 2-11 0-6 9.16 14.4 2-12a 0-6 12.8 25.3 2-13 0-6 16.3 29.6 2-14 0-6 9.38 26.6 2-15a 0-6 4.81 11.5 2-16 0-6 5.20 17.3 2-17 0-6 6.46 17.1 2-18 0-6 4.27 16.3 2-19a 0-6 4.53 46.8 2-20 0-6 4.37 18.9 9.44 21.47 2-04b 6-12 5.25 10.20 2-07b 6-12 3.34 9.05 2-12b 6-12 7.20 14.7 2-15b 6-12 4.54 12.7 2-19b 6-12 4.06 27.2 4.88 14.77 Bold - Sample result exceeds adopted criteria Abbreviations & Acronyms: mg/kg - milligrams per kilogram bgs - below ground surface Average Decision Unit 1 Decision Unit 2 Average Average b - Washington State Department of Ecology Tacoma Smelter Plume Model Remedies Guidance, Sampling and cleanup of arsenic and lead contaminated soils, Publication Number 19-09-101, July 2019. a - Washington State Department of Ecology Model Toxics Control Act Method A Cleanup Level for Unrestricted Land Use as established in WAC 173-340-900 Metals AVERAGE CONCENTRATION FOR SITE 6.37 19.63 MTCA Method A Cleanup Levels For Soila 20 250 Location Sample Depth Range Elevated Concentrationb 40 500 Adopted Criteria Average 1 of 1 Attachment A Laboratory Report and Chain of Custody Documentation FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS James E. Bruya, Ph.D. 3012 16th Avenue West Yelena Aravkina, M.S. Seattle, WA 98119-2029 Michael Erdahl, B.S. (206) 285-8282 Arina Podnozova, B.S. fbi@isomedia.com Eric Young, B.S. www.friedmanandbruya.com September 14, 2020 James Welles, Project Manager PBS Engineering and Environmental, Inc. 214 E. Galer St, Suite 300 Seattle, WA 98102 Dear Mr Welles: Included are the results from the testing of material submitted on September 1, 2020 from the Olympic View PO 41519.008, F&BI 009022 project. There are 64 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days, or as directed by the Chain of Custody document. If you would like us to return your samples or arrange for long term storage at our offices, please contact us as soon as possible. We appreciate this opportunity to be of service to you and hope you will call if you should have any questions. Sincerely, FRIEDMAN & BRUYA, INC. Michael Erdahl Project Manager Enclosures PBS0914R.DOC FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 1 CASE NARRATIVE This case narrative encompasses samples received on September 1, 2020 by Friedman & Bruya, Inc. from the PBS Engineering and Environmental Olympic View PO 41519.008, F&BI 009022 roject. Samples were logged in under the laboratory ID’s listed below. Laboratory ID PBS Engineering and Environmental 009022 -01 1-01 009022 -02 1-02 009022 -03 1-03 009022 -04 1-04a 009022 -05 1-04b 009022 -06 1-05a 009022 -07 1-05b 009022 -08 1-06 009022 -09 1-07 009022 -10 1-08 009022 -11 1-09 009022 -12 1-10 009022 -13 1-11a 009022 -14 1-11b 009022 -15 1-12 009022 -16 1-13 009022 -17 1-14 009022 -18 1-15 009022 -19 1-16a 009022 -20 1-16b 009022 -21 1-17 009022 -22 1-18a 009022 -23 1-18b 009022 -24 1-19 009022 -25 1-20 009022 -26 1-21 009022 -27 1-22a 009022 -28 1-22b 009022 -29 1-23 009022 -30 1-24 009022 -31 2-01 009022 -32 2-02 009022 -33 2-03 009022 -34 2-04a 009022 -35 2-04b FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 2 CASE NARRATIVE (continued) Laboratory ID PBS Engineering and Environmental 009022 -36 2-05 009022 -37 2-06 009022 -38 2-07a 009022 -39 2-07b 009022 -40 2-08 009022 -41 2-09 009022 -42 2-10 009022 -43 2-11 009022 -44 2-12a 009022 -45 2-12b 009022 -46 2-13 009022 -47 2-14 009022 -48 2-15a 009022 -49 2-15b 009022 -50 2-16 009022 -51 2-17 009022 -52 2-18 009022 -53 2-19a 009022 -54 2-19b 009022 -55 2-20 All quality control requirements were acceptable. FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 3 Analysis For Total Metals By EPA Method 6020B Client ID: 1-01 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-01 Date Analyzed: 09/04/20 Data File: 009022-01.063 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.34 Lead 9.22 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 4 Analysis For Total Metals By EPA Method 6020B Client ID: 1-02 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-02 Date Analyzed: 09/04/20 Data File: 009022-02.064 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.95 Lead 9.98 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 5 Analysis For Total Metals By EPA Method 6020B Client ID: 1-03 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-03 Date Analyzed: 09/04/20 Data File: 009022-03.069 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.81 Lead 13.4 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 6 Analysis For Total Metals By EPA Method 6020B Client ID: 1-04a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-04 Date Analyzed: 09/04/20 Data File: 009022-04.070 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.33 Lead 7.03 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 7 Analysis For Total Metals By EPA Method 6020B Client ID: 1-04b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-05 Date Analyzed: 09/04/20 Data File: 009022-05.071 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.07 Lead 8.54 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 8 Analysis For Total Metals By EPA Method 6020B Client ID: 1-05a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-06 x5 Date Analyzed: 09/04/20 Data File: 009022-06 x5.080 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic <5 Lead 8.63 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 9 Analysis For Total Metals By EPA Method 6020B Client ID: 1-05b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-07 Date Analyzed: 09/04/20 Data File: 009022-07.076 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.41 Lead 8.24 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 10 Analysis For Total Metals By EPA Method 6020B Client ID: 1-06 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-08 x5 Date Analyzed: 09/04/20 Data File: 009022-08 x5.081 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic <5 Lead 9.16 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 11 Analysis For Total Metals By EPA Method 6020B Client ID: 1-07 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-09 Date Analyzed: 09/04/20 Data File: 009022-09.078 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 2.90 Lead 7.76 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 12 Analysis For Total Metals By EPA Method 6020B Client ID: 1-08 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-10 Date Analyzed: 09/04/20 Data File: 009022-10.079 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.14 Lead 7.18 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 13 Analysis For Total Metals By EPA Method 6020B Client ID: 1-09 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-11 Date Analyzed: 09/09/20 Data File: 009022-11.264 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.93 Lead 8.35 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 14 Analysis For Total Metals By EPA Method 6020B Client ID: 1-10 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-12 Date Analyzed: 09/09/20 Data File: 009022-12.265 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 1.81 Lead 3.88 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 15 Analysis For Total Metals By EPA Method 6020B Client ID: 1-11a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-13 Date Analyzed: 09/09/20 Data File: 009022-13.266 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.80 Lead 8.28 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 16 Analysis For Total Metals By EPA Method 6020B Client ID: 1-11b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-14 Date Analyzed: 09/09/20 Data File: 009022-14.267 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 2.34 Lead 5.83 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 17 Analysis For Total Metals By EPA Method 6020B Client ID: 1-12 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-15 Date Analyzed: 09/09/20 Data File: 009022-15.268 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.51 Lead 9.88 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 18 Analysis For Total Metals By EPA Method 6020B Client ID: 1-13 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-16 Date Analyzed: 09/09/20 Data File: 009022-16.269 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 5.11 Lead 12.5 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 19 Analysis For Total Metals By EPA Method 6020B Client ID: 1-14 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-17 Date Analyzed: 09/09/20 Data File: 009022-17.273 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 5.84 Lead 10.8 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 20 Analysis For Total Metals By EPA Method 6020B Client ID: 1-15 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-18 Date Analyzed: 09/09/20 Data File: 009022-18.274 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 5.67 Lead 16.4 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 21 Analysis For Total Metals By EPA Method 6020B Client ID: 1-16a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-19 Date Analyzed: 09/09/20 Data File: 009022-19.275 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.75 Lead 6.47 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 22 Analysis For Total Metals By EPA Method 6020B Client ID: 1-16b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-20 Date Analyzed: 09/09/20 Data File: 009022-20.276 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 2.36 Lead 2.52 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 23 Analysis For Total Metals By EPA Method 6020B Client ID: 1-17 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-21 Date Analyzed: 09/09/20 Data File: 009022-21.277 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.14 Lead 7.03 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 24 Analysis For Total Metals By EPA Method 6020B Client ID: 1-18a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-22 Date Analyzed: 09/09/20 Data File: 009022-22.278 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 16.0 Lead 27.9 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 25 Analysis For Total Metals By EPA Method 6020B Client ID: 1-18b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-23 Date Analyzed: 09/09/20 Data File: 009022-23.279 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.35 Lead 5.01 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 26 Analysis For Total Metals By EPA Method 6020B Client ID: 1-19 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-24 Date Analyzed: 09/09/20 Data File: 009022-24.280 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.08 Lead 5.83 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 27 Analysis For Total Metals By EPA Method 6020B Client ID: 1-20 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-25 Date Analyzed: 09/09/20 Data File: 009022-25.281 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.38 Lead 6.31 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 28 Analysis For Total Metals By EPA Method 6020B Client ID: 1-21 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-26 x5 Date Analyzed: 09/10/20 Data File: 009022-26 x5.061 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic <5 Lead 231 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 29 Analysis For Total Metals By EPA Method 6020B Client ID: 1-22a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-27 Date Analyzed: 09/10/20 Data File: 009022-27.076 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.62 Lead 7.16 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 30 Analysis For Total Metals By EPA Method 6020B Client ID: 1-22b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-28 Date Analyzed: 09/10/20 Data File: 009022-28.077 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.03 Lead 6.34 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 31 Analysis For Total Metals By EPA Method 6020B Client ID: 1-23 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-29 Date Analyzed: 09/10/20 Data File: 009022-29.078 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 6.18 Lead 62.1 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 32 Analysis For Total Metals By EPA Method 6020B Client ID: 1-24 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-30 Date Analyzed: 09/10/20 Data File: 009022-30.079 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 7.22 Lead 43.6 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 33 Analysis For Total Metals By EPA Method 6020B Client ID: 2-01 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-31 Date Analyzed: 09/10/20 Data File: 009022-31.080 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.12 Lead 7.02 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 34 Analysis For Total Metals By EPA Method 6020B Client ID: 2-02 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-32 Date Analyzed: 09/10/20 Data File: 009022-32.081 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 53.1 Lead 84.1 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 35 Analysis For Total Metals By EPA Method 6020B Client ID: 2-03 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-33 Date Analyzed: 09/10/20 Data File: 009022-33.082 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 6.33 Lead 9.37 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 36 Analysis For Total Metals By EPA Method 6020B Client ID: 2-04a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-34 Date Analyzed: 09/10/20 Data File: 009022-34.083 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 5.35 Lead 9.59 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 37 Analysis For Total Metals By EPA Method 6020B Client ID: 2-04b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-35 Date Analyzed: 09/10/20 Data File: 009022-35.084 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 5.25 Lead 10.2 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 38 Analysis For Total Metals By EPA Method 6020B Client ID: 2-05 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-36 Date Analyzed: 09/10/20 Data File: 009022-36.085 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 6.21 Lead 14.6 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 39 Analysis For Total Metals By EPA Method 6020B Client ID: 2-06 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-37 Date Analyzed: 09/10/20 Data File: 009022-37.114 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.18 Lead 9.65 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 40 Analysis For Total Metals By EPA Method 6020B Client ID: 2-07a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-38 Date Analyzed: 09/10/20 Data File: 009022-38.115 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.51 Lead 10.2 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 41 Analysis For Total Metals By EPA Method 6020B Client ID: 2-07b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-39 Date Analyzed: 09/10/20 Data File: 009022-39.116 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.34 Lead 9.05 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 42 Analysis For Total Metals By EPA Method 6020B Client ID: 2-08 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-40 Date Analyzed: 09/10/20 Data File: 009022-40.117 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.77 Lead 14.5 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 43 Analysis For Total Metals By EPA Method 6020B Client ID: 2-09 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-41 Date Analyzed: 09/10/20 Data File: 009022-41.122 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 11.6 Lead 23.1 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 44 Analysis For Total Metals By EPA Method 6020B Client ID: 2-10 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-42 Date Analyzed: 09/03/20 Data File: 009022-42.050 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 13.4 Lead 23.5 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 45 Analysis For Total Metals By EPA Method 6020B Client ID: 2-11 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-43 Date Analyzed: 09/03/20 Data File: 009022-43.051 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 9.16 Lead 14.4 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 46 Analysis For Total Metals By EPA Method 6020B Client ID: 2-12a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-44 Date Analyzed: 09/03/20 Data File: 009022-44.052 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 12.8 Lead 25.3 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 47 Analysis For Total Metals By EPA Method 6020B Client ID: 2-12b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-45 Date Analyzed: 09/10/20 Data File: 009022-45.123 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 7.20 Lead 14.7 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 48 Analysis For Total Metals By EPA Method 6020B Client ID: 2-13 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-46 Date Analyzed: 09/10/20 Data File: 009022-46.124 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 16.3 Lead 29.6 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 49 Analysis For Total Metals By EPA Method 6020B Client ID: 2-14 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-47 Date Analyzed: 09/03/20 Data File: 009022-47.159 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 9.38 Lead 26.6 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 50 Analysis For Total Metals By EPA Method 6020B Client ID: 2-15a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-48 Date Analyzed: 09/10/20 Data File: 009022-48.125 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.81 Lead 11.5 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 51 Analysis For Total Metals By EPA Method 6020B Client ID: 2-15b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-49 Date Analyzed: 09/10/20 Data File: 009022-49.126 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.54 Lead 12.7 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 52 Analysis For Total Metals By EPA Method 6020B Client ID: 2-16 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-50 Date Analyzed: 09/10/20 Data File: 009022-50.127 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 5.20 Lead 17.3 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 53 Analysis For Total Metals By EPA Method 6020B Client ID: 2-17 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-51 Date Analyzed: 09/10/20 Data File: 009022-51.128 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 6.46 Lead 17.1 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 54 Analysis For Total Metals By EPA Method 6020B Client ID: 2-18 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-52 Date Analyzed: 09/03/20 Data File: 009022-52.166 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.27 Lead 16.3 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 55 Analysis For Total Metals By EPA Method 6020B Client ID: 2-19a Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-53 Date Analyzed: 09/03/20 Data File: 009022-53.167 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.53 Lead 46.8 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 56 Analysis For Total Metals By EPA Method 6020B Client ID: 2-19b Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-54 Date Analyzed: 09/03/20 Data File: 009022-54.168 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.06 Lead 27.2 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 57 Analysis For Total Metals By EPA Method 6020B Client ID: 2-20 Client: PBS Engineering and Environmental Date Received: 09/01/20 Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: 009022-55 Date Analyzed: 09/03/20 Data File: 009022-55.169 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.37 Lead 18.9 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 58 Analysis For Total Metals By EPA Method 6020B Client ID: Method Blank Client: PBS Engineering and Environmental Date Received: Not Applicable Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: I0-511 mb Date Analyzed: 09/02/20 Data File: I0-511 mb.130 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic <1 Lead <1 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 59 Analysis For Total Metals By EPA Method 6020B Client ID: Method Blank Client: PBS Engineering and Environmental Date Received: Not Applicable Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: I0-512 mb Date Analyzed: 09/02/20 Data File: I0-512 mb.132 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic <1 Lead <1 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 60 Analysis For Total Metals By EPA Method 6020B Client ID: Method Blank Client: PBS Engineering and Environmental Date Received: Not Applicable Project: Olympic View PO 41519.008 Date Extracted: 09/02/20 Lab ID: I0-513 mb Date Analyzed: 09/03/20 Data File: I0-513 mb.057 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic <1 Lead <1 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 61 Date of Report: 09/14/20 Date Received: 09/01/20 Project: Olympic View PO 41519.008, F&BI 009022 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES FOR TOTAL METALS USING EPA METHOD 6020B Laboratory Code: 009022-01 (Matrix Spike) Analyte Reporting Units Spike Level Sample Result (Wet wt) Percent Recovery MS Percent Recovery MSD Acceptance Criteria RPD (Limit 20) Arsenic mg/kg (ppm) 10 3.04 84 80 75-125 5 Lead mg/kg (ppm) 50 5.94 86 82 75-125 5 Laboratory Code: Laboratory Control Sample Analyte Reporting Units Spike Level Percent Recovery LCS Acceptance Criteria Arsenic mg/kg (ppm) 10 82 80-120 Lead mg/kg (ppm) 50 94 80-120 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 62 Date of Report: 09/14/20 Date Received: 09/01/20 Project: Olympic View PO 41519.008, F&BI 009022 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES FOR TOTAL METALS USING EPA METHOD 6020B Laboratory Code: 009022-21 (Matrix Spike) Analyte Reporting Units Spike Level Sample Result (Wet wt) Percent Recovery MS Percent Recovery MSD Acceptance Criteria RPD (Limit 20) Arsenic mg/kg (ppm) 10 3.97 81 77 75-125 5 Lead mg/kg (ppm) 50 6.07 86 86 75-125 0 Laboratory Code: Laboratory Control Sample Analyte Reporting Units Spike Level Percent Recovery LCS Acceptance Criteria Arsenic mg/kg (ppm) 10 81 80-120 Lead mg/kg (ppm) 50 94 80-120 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 63 Date of Report: 09/14/20 Date Received: 09/01/20 Project: Olympic View PO 41519.008, F&BI 009022 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES FOR TOTAL METALS USING EPA METHOD 6020B Laboratory Code: 009022-41 (Matrix Spike) Analyte Reporting Units Spike Level Sample Result (Wet wt) Percent Recovery MS Percent Recovery MSD Acceptance Criteria RPD (Limit 20) Arsenic mg/kg (ppm) 10 9.40 91 98 75-125 7 Lead mg/kg (ppm) 50 17.3 82 86 75-125 5 Laboratory Code: Laboratory Control Sample Analyte Reporting Units Spike Level Percent Recovery LCS Acceptance Criteria Arsenic mg/kg (ppm) 10 87 80-120 Lead mg/kg (ppm) 50 91 80-120 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 64 Data Qualifiers & Definitions a - The analyte was detected at a level less than five times the reporting limit. The RPD results may not provide reliable information on the variability of the analysis. b - The analyte was spiked at a level that was less than five times that present in the sample. Matrix spike recoveries may not be meaningful. ca - The calibration results for the analyte were outside of acceptance criteria. The value reported is an estimate. c - The presence of the analyte may be due to carryover from previous sample injections. cf - The sample was centrifuged prior to analysis. d - The sample was diluted. Detection limits were raised and surrogate recoveries may not be meaningful. dv - Insufficient sample volume was available to achieve normal reporting limits. f - The sample was laboratory filtered prior to analysis. fb - The analyte was detected in the method blank. fc - The analyte is a common laboratory and field contaminant. hr - The sample and duplicate were reextracted and reanalyzed. RPD results were still outside of control limits. Variability is attributed to sample inhomogeneity. hs - Headspace was present in the container used for analysis. ht – The analysis was performed outside the method or client-specified holding time requirement. ip - Recovery fell outside of control limits due to sample matrix effects. j - The analyte concentration is reported below the lowest calibration standard. The value reported is an estimate. J - The internal standard associated with the analyte is out of control limits. The reported concentration is an estimate. jl - The laboratory control sample(s) percent recovery and/or RPD were out of control limits. The reported concentration should be considered an estimate. js - The surrogate associated with the analyte is out of control limits. The reported concentration should be considered an estimate. lc - The presence of the analyte is likely due to laboratory contamination. L - The reported concentration was generated from a library search. nm - The analyte was not detected in one or more of the duplicate analyses. Therefore, calculation of the RPD is not applicable. pc - The sample was received with incorrect preservation or in a container not approved by the method. The value reported should be considered an estimate. ve - The analyte response exceeded the valid instrument calibration range. The value reported is an estimate. vo - The value reported fell outside the control limits established for this analyte. x - The sample chromatographic pattern does not resemble the fuel standard used for quantitation. 2 14 E GALER STREET, SUITE 3 00, SEATTLE, WA 98102  206.233.9639 MAIN  866.727.0140 FAX  PBSUSA.COM March 26, 2021 Eva Barber Technical Assistance Coordinator Toxics Cleanup Program Southwest Regional Office Email: eva.barber@ecy.wa.gov RE: Olympic View Elementary School – Supplemental Sampling for VCP and Work Plan Review 2626 SW 327th Street, Federal Way, Washington PBS Project #41519.008 Federal Way Public Schools (FWPS) contracted PBS Engineering and Environmental Inc. (PBS) to evaluate the potential for arsenic and lead contaminants in near-surface soils at the site of Olympic View Elementary School (OLV) prior to site redevelopment as part of the Olympic View Elementary School Replacement Project (Figure 1). This letter is in response to an email dated March 11, 2021 from the Washington State Department of Ecology (Ecology) regarding assessment and remediation of Tacoma Smelter Plume impacts to Olympic View Elementary School (Site/Property). The email was sent in response to a Voluntary Cleanup Program (VCP) application and work plan 1 submitted to Ecology for the Property. BACKGROUND PBS performed initial 2 and supplemental 3 soil characterization to assess potential Tacoma Smelter Plume impacts to the site in September and December of 2020, respectively. Soil characterization efforts identified one area in the northeast portion of the Site requiring remediation per Ecology’s Tacoma Smelter Plume Model Remedies Guidance4 (Smelter Plume Guidance). Based on the soil characterization efforts, PBS prepared the work plan detailing proposed remedial actions at the Site. The work plan was submitted to Ecology along with a VCP application and the following request for opinion: Will Ecology provide a No Further Action (NFA) likely opinion letter to FWPS based on the remediation activities proposed in this work plan for the site? Eva Barber (Technical Assistance Coordinator) with Ecology responded to the request for opinion in a March 11, 2021 email. The email stated that supplemental sampling in the treed areas along the northern and western property boundaries was required in order for Ecology to provide the opinion requested in the work plan. The email is included as Attachment A to this letter report. 1 Remedial Action Work Plan for Tacoma Smelter Plume Impacts, Olympic View Elementary School, PBS Engineering and Environmental, March 3, 2021. 2 Olympic View Elementary School – Arsenic and Lead Soil Sampling, PBS Engineering and Environmental, September 16, 2020. 3 Olympic View Elementary School – Supplemental Arsenic and Lead Soil Sampling, PBS Engineering and Environmental, January 7, 2021. 4 Tacoma Smelter Plume Model Remedies Guidance – Sampling and Cleanup of Arsenic and Lead Contaminated Soils, Washington State Department of Ecology, Publication Number 19-09-101, July 2019. Federal Way Public Schools Olympic View Elementary School – Supplemental Sampling for VCP and Work Plan Review March 26, 2021 Page 2 41519.008 SITE DESCRIPTION AND GEOLOGY The site lies within the Puget Lowland, an area characterized by Pleistocene aged glacial stratigraphic sequences resulting from repeated advances of the Cordilleran ice sheet. These sequences consist of unconsolidated glacial, fluvial, and lacustrine sediments. Geophysical investigations have indicated that unconsolidated sediments in the Federal Way area range from 1,200 to 1,600 feet thick. The nearest bedrock exposures are to the south in the Puyallup Valley (ECI, 1991). According to the Geologic Map of Poverty Bay 7.5’ Quadrangle, King and Pierce Counties, Washington, 1:24,000 scale, the site is underlain by Quaternary-aged Till – Compact diamict containing subrounded to well-rounded clasts in massive, silt- or sand-rich matrix. Glacially transported and deposited. Generally, a few meters to a few tens of meters thick, forming undulatory surface (USGS, 2004). The site is generally flat, while the greater area slopes to the northwest towards Poverty Bay of the greater Puget Sound. Based on a review of publicly available well logs depth to groundwater beneath the Site is expected to be between 5 and 20 feet below ground surface. Shallow groundwater flow is predicted to follow surface topography, and flow generally to the northwest toward Poverty Bay. REGULATORY CRITERIA Per the Smelter Plume Guidance: “if arsenic or lead levels are elevated for any decision unit on the property, that decision unit needs cleanup.” Per the Smelter Plume Guidance, elevated is defined as: • Average arsenic > 20 ppm, equivalent to milligrams per kilogram (mg/kg) or average lead > 250 ppm; or • Maximum (any one sample) arsenic > 40 ppm or maximum lead > 500 ppm. Ecology’s Model Toxics Control Act (MTCA) has established cleanup levels for arsenic and lead for unrestricted land use that are protective of human health and the environment 5. Ecology’s MTCA Method A cleanup levels (CULs) for unrestricted land use for arsenic and lead are applicable for comparison to any single soil sample concentration. The CULs for arsenic and lead are presented below: • The CUL for arsenic is 20 milligrams per kilogram (mg/kg) • The CUL for lead is 250 mg/kg. Based on the site’s land use as a school, FWPS has elected to clean up the majority of soils on the Property found to be in exceedance of CULs, even if the soils are not defined as elevated per the Smelter Plume Guidance. The treed area in question is outside of the main school yard grounds, is isolated from the school area by chain link fencing, and is inaccessible to students. Given the lack potential exposure of students to soils in the treed area, FWPS has elected to use elevated concentrations rather than CULs as cleanup criteria for this portion of the Property (Decision Unit 3), as allowed by the Smelter Plume Guidance. SUPPLEMENTAL SOIL SAMPLING The second supplemental soil sampling event was conducted on March 12, 2021 and included collection of soil samples in the treed area as requested in the March 11, 2021 Ecology email. The treed area was designated as a third decision unit (Decision Unit 3) for soil characterization on the Property. This was based on the nature and use of the treed area being distinct from the rest of the Property. 5 “Model Toxics Control Act Regulation and Statute”, Washington State Department of Ecology, 2013 Revision, Publication No. 94-06 Federal Way Public Schools Olympic View Elementary School – Supplemental Sampling for VCP and Work Plan Review March 26, 2021 Page 3 41519.008 Discrete soil samples were collected from 15 locations within Decision Unit 3 as requested in the March 11, 2021 email and depicted in Figure 2. The samples were taken at depth intervals of zero to six inches below ground surface (bgs). At every fourth location (25% of all sample locations), a second discrete sample was collected from a depth of six to twelve inches bgs, per the Smelter Plume Guidance. Soil sample collection started just below any surface cover layer (e.g., sod or grass). A hand spade and a hand auger were used to complete 6-inch deep test holes. A soil sample was collected at a depth of less than six inches below ground surface at each location. The test holes were then advanced to a depth of twelve inches, and a soil sample was collected at a depth between six and twelve inches bgs. PBS personnel wore disposable nitrile gloves to protect against cross-contamination between samples. Soil retained for analysis was packed into laboratory-provided containers, labeled and transported on ice under chain of custody documentation to Friedman and Bruya, Inc. in Seattle, an Ecology accredited analytical laboratory. Samples were analyzed for total arsenic and lead using EPA Method 6020. Total arsenic and lead results were reported on a dry weight basis. ANALYTICAL RESULTS Detected concentrations of arsenic and lead in supplemental soil samples collected from Decision Unit 3 are not considered “elevated” as defined in the Smelter Plume Guidance. CONCLUSIONS Based on the analytical results of the supplemental soil sampling within Decision Unit 3, no additional soil remediation beyond that proposed in the work plan is required by the Smelter Plume Guidance. With the additional information presented in this letter report, PBS, on the behalf of FWPS, requests that Ecology provide opinion on the original question presented in the work plan: Will Ecology provide a NFA Likely opinion letter to FWPS based on the remediation activities proposed in the work plan? LIMITATIONS This investigation was conducted to characterize lead and arsenic distributions in shallow soils surrounding previously identified arsenic and lead contaminated locations on-site, with a focus on protection of human health and the environment. The data collected in this investigation are not intended for the purposes waste profiling for offsite disposal, or for estimation of volume or tonnage of soil requiring disposal. PBS has prepared this report for use by FWPS. This report is not intended for use by others without the written consent of the FWPS. Our interpretation of soil conditions in this study was based on field observations and analytical data from the indicated explorations. Regulated substances may exist in portions of the site that were not explored or analyzed. Federal Way Public Schools Olympic View Elementary School – Supplemental Sampling for VCP and Work Plan Review March 26, 2021 Page 4 41519.008 PBS ENGINEERING AND ENVIRONMENTAL INC. James Welles, LG Project Geologist Reviewed By: Michael Bagley, LHG Project Hydrogeologist Attachments: Figure 1: Vicinity Map Figure 2: As/Pb Soil Sample Location Map Table 1: Laboratory Data Summary Table for Decision Unit 3 Attachment A: Ecology Email dated March 11, 2021 Attachment B: Laboratory Data Figures PROJECT LOCATION 0'1,000'2,000'4,000' SCALE 1" = 2000' SOURCE: USGS POVERTY BAY, WA QUADRANGLE 2020. FEDERAL WAY WASHINGTON VANCOUVER SEATTLE SITE FIGURE Filename: L:\Projects\41000\41519 Federal Way Public Schools\41519.008 Olympic View K-8\DWG\41519.008_Fig_1-3.dwg Layout Tab: VICINITY MAP User: Katie Breyman CAD Plot Date/Time: 3/26/2021 12:15:04 PMPREPARED FOR: FEDERAL WAY PUBLIC SCHOOLS FEDERAL WAY, WASHINGTON MAR 2021 41519.008 1 OLYMPIC VIEW ELEMENTARY SCHOOL VICINITY MAP 2626 327TH STREET OLYMPIA 1-01 1-02 1-03 1-08 1-071-06 1-09 1-10 1-12 2-011-151-141-13 1-17 1-211-201-19 1-23 1-24 2-09 2-11 2-10 2-16 2-13 2-14 2-17 2-18 2-20 2-08 2-05 2-06 2-03 2-04 1-04 1-05 1-11 1-16 1-18 1-22 2-07 2-12 2-15 2-19 2-02 DECISION UNIT 1 DECISION UNIT 3 DECISION UNIT 2 3-01 3-03 3-05 3-06 3-07 3-09 3-10 3-11 3-13 3-14 3-08 3-15 3-12 3-04 3-02 FIGURE Filename: L:\Projects\41000\41519 Federal Way Public Schools\41519.008 Olympic View K-8\DWG\41519.008_Fig_1-3.dwg Layout Tab: SITE PLAN User: Katie Breyman CAD Plot Date/Time: 3/26/2021 2:40:30 PMPREPARED FOR: FEDERAL WAY PUBLIC SCHOOLS FEDERAL WAY, WASHINGTON MAR 2021 41519.008 2 OLYMPIC VIEW ELEMENTARY SCHOOL As / Pb SOIL SAMPLE LOCATION MAP 2626 SOUTHWEST 327TH STREET 0'50'100'200' SCALE 1" = 100' LEGEND SOURCE: © 2018 GOOGLE EARTH PRO 1-04 1-01 SOIL SAMPLE LOCATION, DECISION UNIT AND IDENTIFICATION (0-6", 6-12") SOIL SAMPLE LOCATION, DECISION UNIT AND IDENTIFICATION (0-6") 2-02 SOIL SAMPLE LOCATION, DECISION UNIT AND IDENTIFICATION (0-6"), RESULTS INDICATE ELEVATED ARSENIC CONCENTRATION Tables Site:Olympic View Elementary School Address:2626 327th Street, Federal Way, Washington PBS Project No. 41519.008 Arsenic (mg/kg) Lead (mg/kg) Regulatory Criteria Elevated Concentrationa 40 500 3-01-06 0-6 inches bgs 0-6 6.51 19.20 3-02-06 0-6 inches bgs 0-6 30.20 67 3-03-06 0-6 inches bgs 0-6 12.50 18.70 3-04-06 0-6 inches bgs 0-6 3.75 5.46 3-05-06 0-6 inches bgs 0-6 5.39 6.78 3-06-06 0-6 inches bgs 0-6 5.56 7.45 3-07-06 0-6 inches bgs 0-6 17.70 10.70 3-08-06 0-6 inches bgs 0-6 4.22 6.86 3-09-06 0-6 inches bgs 0-6 7.33 16.00 3-10-06 0-6 inches bgs 0-6 7.22 20.80 3-11-06 0-6 inches bgs 0-6 4.04 6.01 3-12-06 0-6 inches bgs 0-6 8.76 9.50 3-13-06 0-6 inches bgs 0-6 4.98 5.18 3-14-06 0-6 inches bgs 0-6 4.37 6.01 3-15-06 0-6 inches bgs 0-6 21.30 62.5 9.6 17.9 3-04-12 6-12 inches 6-12 3.53 4.82 3-08-12 6-12 inches 6-12 3.14 4.67 3-12-12 6-12 inches 6-12 6.10 7.90 3-15-12 6-12 inches 6-12 22.80 50.70 8.9 17.0 Arsenic and lead analyzed by US EPA Method 6020mg/kg - milligrams per kilogram bgs = below ground surface a Per WA Dept of Ecology's Tacoma Smelter Plume Model Remedies Guidance, Publication No. 19-09-101 Delineation Samples Surrounding Sample 2-02 Average Average Table 1 - Decision Unit 3 Soil Sample Analytical Results Sample Depth (inches bgs) MetalsLocation / Sample Identification Description Attachment A WA Dept of Ecology Email – March 11, 2021 From:Barber, Eva (ECY) To:James Welles Subject:RE: VCP Application and Work Plan for Review - Olympic View Elementary School - Federal Way Public School District Date:Thursday, March 11, 2021 9:39:23 AM Attachments:image002.png James, I reviewed the sampling results and the Cleanup Action Plan for the Olympic View Elementary School. The overall sampling looks good and I will be able to issue an opinion letter, however, I need supplemental sampling in the treed areas. I understand that the treed areas on the western and northeastern side of the school will not be disturbed, however, they need to be characterized for the Tacoma Smelter Plume contamination because they are within the Property boundary as defined by the legal description and because they are part of the elementary school and will be accessible to school children. Below is a figure of the current sampling on the Property where dots in black and red represent the samples already collected. The blue dots represent the approximate locations of additional 15 samples that need to be collected at 0 to 6 inches bgs. Also, collect four additional samples at 6 to 12 inches bgs in those areas. Please, let me know if you have any questions. You can also call me. Eva Barber Technical Assistance Coordinator Toxics Cleanup Program, Southwest Regional Office Washington State Department of Ecology Cell: 360-999-9593 * eva.barber@ecy.wa.gov From: James Welles <James.Welles@pbsusa.com> Sent: Thursday, March 04, 2021 3:45 PM To: Fernandez, Sonia (ECY) <sofe461@ECY.WA.GOV> Cc: Barber, Eva (ECY) <evba461@ECY.WA.GOV> Subject: VCP Application and Work Plan for Review - Olympic View Elementary School - Federal Way Public School District THIS EMAIL ORIGINATED FROM OUTSIDE THE WASHINGTON STATE EMAIL SYSTEM - Take caution not to open attachments or links unless you know the sender AND were eThe samxpecting the attachment or the link Sonia, Attached are a VCP application, agreement, and checklist for Olympic View Elementary School in Federal Way. Additionally, I’ve attached a Remedial Action Work Plan for which we are requesting an opinion. This work plan and VCP enrollment are in relation to the cleanup of Tacoma Smelter Plume impacts at the site. As such, I’ve copied Eva here as well. Please let me know if you have any questions, or require additional information. Thanks in advance for your time in assisting the district with this matter, James Welles, LG | Project Geologist | PBS Seattle | (206) 348-6317 (mobile) Attachment B Laboratory Report and Chain of Custody Documentation FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS James E. Bruya, Ph.D. 3012 16th Avenue West Yelena Aravkina, M.S. Seattle, WA 98119-2029 Michael Erdahl, B.S. (206) 285-8282 Arina Podnozova, B.S. fbi@isomedia.com Eric Young, B.S. www.friedmanandbruya.com March 18, 2021 James Welles, Project Manager PBS Engineering and Environmental, Inc. 214 E. Galer St, Suite 300 Seattle, WA 98102 Dear Mr Welles: Included are the results from the testing of material submitted on March 12, 2021 from the FWPS OLV Soils 41519.008, F&BI 103243 project. There are 23 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days, or as directed by the Chain of Custody document. If you would like us to return your samples or arrange for long term storage at our offices, please contact us as soon as possible. We appreciate this opportunity to be of service to you and hope you will call if you should have any questions. Sincerely, FRIEDMAN & BRUYA, INC. Michael Erdahl Project Manager Enclosures PBS0318R.DOC FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 1 CASE NARRATIVE This case narrative encompasses samples received on March 12, 2021 by Friedman & Bruya, Inc. from the PBS Engineering and Environmental FWPS OLV Soils 41519.008, F&BI 103243 project. Samples were logged in under the laboratory ID’s listed below. Laboratory ID PBS Engineering and Environmental 103243 -01 3-01-06 103243 -02 3-01-12 103243 -03 3-02-06 103243 -04 3-02-12 103243 -05 3-03-06 103243 -06 3-03-13 103243 -07 3-04-06 103243 -08 3-04-12 103243 -09 3-05-06 103243 -10 3-05-12 103243 -11 3-06-06 103243 -12 3-06-12 103243 -13 3-07-06 103243 -14 3-07-12 103243 -15 3-08-06 103243 -16 3-08-12 103243 -17 3-09-06 103243 -18 3-09-12 103243 -19 3-10-06 103243 -20 3-10-12 103243 -21 3-11-06 103243 -22 3-11-12 103243 -23 3-12-06 103243 -24 3-12-12 103243 -25 3-13-06 103243 -26 3-13-12 103243 -27 3-14-06 103243 -28 3-14-12 103243 -29 3-15-06 103243 -30 3-15-12 All quality control requirements were acceptable. FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 2 Analysis For Total Metals By EPA Method 6020B Client ID: 3-01-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-01 Date Analyzed: 03/15/21 Data File: 103243-01.096 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 6.51 Lead 19.2 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 3 Analysis For Total Metals By EPA Method 6020B Client ID: 3-02-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-03 Date Analyzed: 03/15/21 Data File: 103243-03.099 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 30.2 Lead 66.6 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 4 Analysis For Total Metals By EPA Method 6020B Client ID: 3-03-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-05 Date Analyzed: 03/15/21 Data File: 103243-05.100 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 12.5 Lead 18.7 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 5 Analysis For Total Metals By EPA Method 6020B Client ID: 3-04-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-07 Date Analyzed: 03/15/21 Data File: 103243-07.101 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.75 Lead 5.46 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 6 Analysis For Total Metals By EPA Method 6020B Client ID: 3-04-12 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-08 Date Analyzed: 03/15/21 Data File: 103243-08.102 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.53 Lead 4.82 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 7 Analysis For Total Metals By EPA Method 6020B Client ID: 3-05-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-09 Date Analyzed: 03/15/21 Data File: 103243-09.105 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 5.39 Lead 6.78 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 8 Analysis For Total Metals By EPA Method 6020B Client ID: 3-06-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-11 Date Analyzed: 03/15/21 Data File: 103243-11.106 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 5.56 Lead 7.45 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 9 Analysis For Total Metals By EPA Method 6020B Client ID: 3-07-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-13 Date Analyzed: 03/15/21 Data File: 103243-13.107 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 17.7 Lead 10.7 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 10 Analysis For Total Metals By EPA Method 6020B Client ID: 3-08-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-15 Date Analyzed: 03/15/21 Data File: 103243-15.108 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.22 Lead 6.86 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 11 Analysis For Total Metals By EPA Method 6020B Client ID: 3-08-12 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-16 Date Analyzed: 03/15/21 Data File: 103243-16.109 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 3.14 Lead 4.67 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 12 Analysis For Total Metals By EPA Method 6020B Client ID: 3-09-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-17 Date Analyzed: 03/15/21 Data File: 103243-17.110 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 7.33 Lead 16.0 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 13 Analysis For Total Metals By EPA Method 6020B Client ID: 3-10-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-19 Date Analyzed: 03/15/21 Data File: 103243-19.111 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 7.22 Lead 20.8 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 14 Analysis For Total Metals By EPA Method 6020B Client ID: 3-11-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-21 Date Analyzed: 03/15/21 Data File: 103243-21.112 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.04 Lead 6.01 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 15 Analysis For Total Metals By EPA Method 6020B Client ID: 3-12-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-23 Date Analyzed: 03/15/21 Data File: 103243-23.113 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 8.76 Lead 9.50 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 16 Analysis For Total Metals By EPA Method 6020B Client ID: 3-12-12 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-24 Date Analyzed: 03/15/21 Data File: 103243-24.114 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 6.10 Lead 7.90 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 17 Analysis For Total Metals By EPA Method 6020B Client ID: 3-13-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-25 Date Analyzed: 03/15/21 Data File: 103243-25.117 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.98 Lead 5.18 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 18 Analysis For Total Metals By EPA Method 6020B Client ID: 3-14-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-27 Date Analyzed: 03/15/21 Data File: 103243-27.118 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 4.37 Lead 6.01 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 19 Analysis For Total Metals By EPA Method 6020B Client ID: 3-15-06 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-29 Date Analyzed: 03/15/21 Data File: 103243-29.119 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 21.3 Lead 62.5 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 20 Analysis For Total Metals By EPA Method 6020B Client ID: 3-15-12 Client: PBS Engineering and Environmental Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: 103243-30 Date Analyzed: 03/15/21 Data File: 103243-30.120 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic 22.8 Lead 50.7 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 21 Analysis For Total Metals By EPA Method 6020B Client ID: Method Blank Client: PBS Engineering and Environmental Date Received: Not Applicable Project: FWPS OLV Soils 41519.008 Date Extracted: 03/15/21 Lab ID: I1-166 mb Date Analyzed: 03/15/21 Data File: I1-166 mb.089 Matrix: Soil Instrument: ICPMS2 Units: mg/kg (ppm) Dry Weight Operator: SP Concentration Analyte: mg/kg (ppm) Arsenic <1 Lead <1 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 22 Date of Report: 03/18/21 Date Received: 03/12/21 Project: FWPS OLV Soils 41519.008, F&BI 103243 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES FOR TOTAL METALS USING EPA METHOD 6020B Laboratory Code: 103243-01 x5 (Matrix Spike) Analyte Reporting Units Spike Level Sample Result (Wet wt) Percent Recovery MS Percent Recovery MSD Acceptance Criteria RPD (Limit 20) Arsenic mg/kg (ppm) 10 5.15 118 107 75-125 10 Lead mg/kg (ppm) 50 15.1 96 89 75-125 8 Laboratory Code: Laboratory Control Sample Analyte Reporting Units Spike Level Percent Recovery LCS Acceptance Criteria Arsenic mg/kg (ppm) 10 96 80-120 Lead mg/kg (ppm) 50 96 80-120 FRIEDMAN & BRUYA, INC. _________________________________________________ ENVIRONMENTAL CHEMISTS 23 Data Qualifiers & Definitions a - The analyte was detected at a level less than five times the reporting limit. The RPD results may not provide reliable information on the variability of the analysis. b - The analyte was spiked at a level that was less than five times that present in the sample. Matrix spike recoveries may not be meaningful. ca - The calibration results for the analyte were outside of acceptance criteria. The value reported is an estimate. c - The presence of the analyte may be due to carryover from previous sample injections. cf - The sample was centrifuged prior to analysis. d - The sample was diluted. Detection limits were raised and surrogate recoveries may not be meaningful. dv - Insufficient sample volume was available to achieve normal reporting limits. f - The sample was laboratory filtered prior to analysis. fb - The analyte was detected in the method blank. fc - The analyte is a common laboratory and field contaminant. hr - The sample and duplicate were reextracted and reanalyzed. RPD results were still outside of control limits. Variability is attributed to sample inhomogeneity. hs - Headspace was present in the container used for analysis. ht – The analysis was performed outside the method or client-specified holding time requirement. ip - Recovery fell outside of control limits due to sample matrix effects. j - The analyte concentration is reported below the lowest calibration standard. The value reported is an estimate. J - The internal standard associated with the analyte is out of control limits. The reported concentration is an estimate. jl - The laboratory control sample(s) percent recovery and/or RPD were out of control limits. The reported concentration should be considered an estimate. js - The surrogate associated with the analyte is out of control limits. The reported concentration should be considered an estimate. lc - The presence of the analyte is likely due to laboratory contamination. L - The reported concentration was generated from a library search. nm - The analyte was not detected in one or more of the duplicate analyses. Therefore, calculation of the RPD is not applicable. pc - The sample was received with incorrect preservation or in a container not approved by the method. The value reported should be considered an estimate. ve - The analyte response exceeded the valid instrument calibration range. The value reported is an estimate. vo - The value reported fell outside the control limits established for this analyte. x - The sample chromatographic pattern does not resemble the fuel standard used for quantitation.