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14-101955James E. Bniya, Ph.D. Yelena Aravkina, M.S. Michael Erdahl, B.S. Arina Podnozova, B.S. Eric Young, B.S. March 6, 2017 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS RESUBMI-h I APR 11 2017 CITY OF FEDERAL WAY OOMMUNfTY DEVELOPhIIEN7 Eric Caddey, Project Manager Environmental Partners, Inc. 1180 NW Maple St, Suite 310 Issaquah, WA 98027 RE: DevCo Federal Way, PO 64302.4, F&BI 703006 Dear Mr Caddey: 3012 16th Avenue West Seattle, WA 98119-2029 (206) 285-8282 fbi@isomedia.com www.friedmanandbruya. com Included are the results from the testing of material submitted on March 1, 2017 from the DevCo Federal Way, PO 64302.4, F&BI 703006 project. There are 6 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days. 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 have any questions. Sincerely, FRIEDMAN & BRUYA, INC. Michael Erdahl Project Manager Enclosures c: Cynthia Moon EPI0306R.DOC FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS CASE NARRATIVE This case narrative encompasses samples received on March 1, 2017 by Friedman & Bruya, Inc. from the Environmental Partners DevCo Federal Way, PO 64302.4, F&BI 703006 project. Samples were logged in under the laboratory ID's listed below. Laboratory ID_ Environmental Partners 703006 -01 MW-5:10 703006 -02 MW-5:15 All quality control requirements were acceptable. FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 03/06/17 Date Received: 03/01/17 Project: DevCo Federal Way, PO 64302.4, F&BI 703006 Date Extracted: 03/02/17 Date Analyzed: 03/02/17 RESULTS FROM THE ANALYSIS OF SOIL SAMPLES FOR BENZENE, TOLUENE, ETHYLBENZENE, XYLENES AND TPH AS GASOLINE USING METHODS 8021B AND NWTPH-Gx Results Reported on a Dry Weight Basis Results Reported as mg/kg (ppm) Ethyl Total Gasoline Surrogate Sample ID Benzene Toluene Benzene Xylenes Range No Recovery Laboratory ID (Limit 50-132) MW-5:10 <0.02 <0.02 <0.02 <0.06 <2 85 703006-01 MW-5:15 <0.02 - <0.02 <0.02 <0.06 <2 83 703006-02 Method Blank <0.02 <0.02 <0.02 <0.0,6 <2 111 07-418 MB 2 FRIEDMAN & BRUYA, INC, ENVIRONMENTAL CHEMISTS Date of Report: 03/06/17 Date Received: 03/01/17 Project: DevCo Federal Way, PO 64302.4, F&BI 703006 Date Extracted: 03/02/17 Date Analyzed: 03/02/17 RESULTS FROM THE ANALYSIS OF SOIL SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS DIESEL AND MOTOR OIL USING METHOD NWTPH-Dx Results Reported on a Dry Weight Basis Results Reported as mg/kg (ppm) Surrogate Sample ID Diesel Range Motor Oil Range % Recovery) Laboratory ID (CID-C25) (C25-C36) (Limit 53-144) MW-5:10 <50 <250 114 703006-01 MW-5:15 <50 <250 107 703006-02 Method Blank <50 <250 103 07-416 MB 3 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 03/06/17 Date Received: 03/01/17 Project: DevCo Federal Way, PO 64302.4, F&BI 703006 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES FOR BENZENE, TOLUENE, ETHYLBENZENE, XYLENES, AND TPH AS GASOLINE USING EPA METHOD 8021B AND NWTPH-Gx Laboratory Code: 703026-01 (Duplicate) Sample Duplicate Reporting Result Result RPD Analyte Units (Wet Wt) (Wet Wt)_ (Limit 20) Benzene mg/kg (ppm) <0.02 <0.02 nm Toluene mg/kg (ppm) 0.030 0.030 0 Ethylbenzene mg/kg (ppm) 0.27 0.26 4 Xylenes mg/kg (ppm) 1.5 1.4 7 Gasoline mg/kg (ppm) 110 110 0 Laboratory Code: Laboratory Control Sample Percent Reporting Spike Recovery Acceptance Anal to Units Level LCS Criteria Benzene mg/kg (ppm) 0.5 91 69-120 Toluene mg/kg (ppm) 0.5 91 70-117 Ethylbenzene mg/kg (ppm) 0.5 98 65-123 Xylenes mg/kg (ppm) 1.5 97 66-120 Gasoline mg/kg (ppm) 20 95 71-131 4 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 03/06/17 Date Received: 03/01/17 Project: DevCo Federal Way, PO 64302.49 F&BI 703006 QUALITY ASSURANCE RESULTS FROM THE ANALYSIS OF SOIL SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS DIESEL EXTENDED USING METHOD NWTPH-Dx Laboratory Code: 703014-03 (Matrix Spike) Sample Percent Percent Reporting Spike Result Recovery Recovery Acceptance RPD Analyte Units Level (Wet WO MS MSD Criteria (Limit 20) Diesel Extended mg/kg (ppm) 5,000 <50 103 108 64-133 5 Laboratory Code: Laboratory Control Sample Percent Reporting Spike Recovery Acceptance Anal to Units Level LCS Criteria Diesel Extended mg/kg (ppm) 5,000 95 58-147 5 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS 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. fe - The compound 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. lit — The analysis was performed outside the method or client -specified holding time requirement. ip - Recovery fell outside of control limits. Compounds in the sample matrix interfered with the quantitation of the analyte. 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 sansple(s) percent recovery and/or RPD were out of control limits. The reported concentration should be considered an estimate. s - The surrogate associated with the analyte is out of control limits. The reported concentration should to The an estimate. lc - The presence of the analyte is likely due to laboratory contamination. L - The reported concentration was generated from a library search. am - 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. D1 b cl� c "Xi tv NO _ro to � ' r to tV n � � 9 C. tea' � � �-3 7 4 i` TTI rj. a L I � E 'O E � i m C I t � CCD�r � ro TPH-HCID 7'PH-Gasoline > BTk;Xby 8021B i VOCs by 8260C SVOCs by 8270D PAHs 82 70D SIM f I r 0 tic- aa R tT Q Q x 2 z 'ter CCI] � O O � Ca 4E3Aq fop 'w� O:r-q xo � C. o � S: C� � ., � R "a FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS James E. Bruya, Ph.D. Yelena Aravkina, M.S. Michael Erdahl, B.S. Arina Podnozova, B.S. Eric Young, B.S. February 1, 2017 Eric Caddey, Project Manager Environmental Partners, Inc. 1180 NW Maple St, Suite 310 Issaquah, WA 98027 RE: DevCo Highpoint, PO 64302.3, F&BI 701289 Dear Mr Caddey: 3012 16th Avenue West Seattle, WA 98119-2029 (206) 285-8282 fbi@isomedia.com www.friedmanandbruya.com Included are the results from the testing of material submitted on January 25, 2017 from the DevCo Highpoint, PO 64302.3, F&BI 701289 project. There are 13 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days. 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 have any questions. Sincerely, FRIEDMAN & BRUYA, INC. Michael Erdahl Project Manager Enclosures c: Cynthia Moon EPI0201R.DOC FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS CASE NARRATIVE This case narrative encompasses samples received on January 25, 2017 by Friedman & Bruya, Inc. from the Environmental Partners DevCo Highpoint, PO 64302.3, F&BI 701289 project. Samples were logged in under the laboratory ID's listed below. Laboratory ID Environmental Partners 701289 -01 MW-1:10 701289 -02 MW-1:20 701289 -03 MW-2:10 701289 -04 MW-2:20 701289 -05 MW-3:10 701289 -06 MW-3:20 701289 -07 MW-4:10 701289 -08 MW-4:15 The 8260C dichlorodifluoromethane matrix spike did not meet the acceptance criteria. In addition, the relative percent difference for several analytes exceeded the acceptance criteria. The laboratory control sample met the acceptance criteria, therefore the results were likely due to matrix effect. All other quality control requirements were acceptable. FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 02/01/17 Date Received: 01/25/17 Project: DevCo Highpoint, PO 64302.3, F&BI 701289 Date Extracted: 01/26/17 Date Analyzed: 01/26/17 and 01/30/17 RESULTS FROM THE ANALYSIS OF SOIL SAMPLES FOR BENZENE, TOLUENE, ETHYLBENZENE, XYLENES AND TPH AS GASOLINE USING METHODS 8021B AND NWTPH-Gx Results Reported on a Dry Weight Basis Results Reported as mg/kg (ppm) Ethyl Total Gasoline Surrogate Sample ID Benzene Toluene Benzene Xvlenes Range (% R.ecoverl) Laboratory ID (Limit.50-150) MW-1:10 <0.02 <0.02 <0.02 <0.06 <2 78 701289-01 MW-1:20 <0.02 <0.02 <0.02 <0.06 <2 74 701289-02 MW-2:10 <0.02 <0.02 <0.02 <0.06 <2 73 701289-03 MW-2:20 <0.02 <0.02 <0.02 <0.06 <2 73 701289-04 i MW-3:10 <0.02 <0.02 <0.02 <0.06 <2 73 701289-05 MW-3:20 <0.02 <0.02 <0.02 <0.06 <2 72 701289-06 MW-4:10 <0.02 <0.02 <0.02 <0.06 <2 73 701289-07 MW-4:15 <0.02 <0.02 <0.02 <0.06 <2 73 701289-08 Method Blank <0.02 <0.02 <0.02 <0.06 <2 76 017-154 MB 2 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 02/01/17 Date Received: 01/25/17 Project: DevCo Highpoint, PO 64302.3, F&BI 701289 Date Extracted: 01/25/17 Date Analyzed: 01/25/17 RESULTS FROM THE ANALYSIS OF SOIL SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS DIESEL AND MOTOR OIL USING METHOD NWTPH-Dx Results Reported on a Dry Weight Basis Results Reported as mg/kg (ppm) Sample ID Laboratory ID MW-1:10 701289-01 MW-1:20 701289-02 MW-2:10 701289-03 MW-2:20 701289-04 MW-3:10 701289-05 MW-3:20 701289-06 MW-4:10 701289-07 MW-4:15 701289-08 Method Blank 07-166 MB Surrogate Diesel Range Motor Oil Range (% Recovery) (CL6-Ca5) (C25-C36) (Limit 53-144) , <50 <250 117 <50 <250 123 <50 <250 115 <50 <250 121 <50 <250 124 <50 <250 121 <50 <250 100 <50 <250 111 <50 <250 107 3 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Analysis For Total Metals By EPA Method 6020A Client ID: MW-1:10 Client: Date Received: 01/25/17 Project: Date Extracted: 01/27/17 Lab ID: Date Analyzed: 01/27/17 Data File. Matrix: Soil Instrument: Units: mg/kg (ppm) Dry Weight Operator: Concentration Analyte: mg/kg (ppm) Lead 1.64 III Environmental Partners DevCo Highpoint, PO 64302.3 701289-01 701289-01.066 ICPMS2 SP FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Analysis For Total Metals By EPA Method 6020A Client ID: Method Blank Date Received: NA Date Extracted: 01/27/17 Date Analyzed: 01/27/17 Matrix: Soil Units: mg/kg (ppm) Dry Weight Concentration Analyte: mg/kg (ppm) Lead <1 Client: Environmental Partners Project: DevCo Highpoint, PO 64302.3 Lab ID: I7-045 mb2 Data File: I7-045 mb2.041 Instrument: ICPMS2 Operator: SP 5 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: AM-1:10 Client: Environmental Partners Date Received: 01/25/17 Project: DevCo Highpoint, PO 64302.3 Date Extracted: 01/26/17 Lab ID: 701289-01 Date Analyzed: 01/26/17 Data File: 012623.D Matrix: Soil Instrument: GCMS9 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 100 85 117 Toluene-d8 93 91 108 4-Bromofluorobenzene 100 76 126 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethen a <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1, 1, 1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Hexane <0.25 o-Xylene <0.05 Methylene chloride <0.5 Styrene <0.05 Methyl t-butyl ether (MTBE) <0.05 Isopropylbenzene <0.05 trans-1,2-Dichloroethene <0.05 Bromoform <0.05 1,1-Dichloroethane <0.05 n-Propylbenzene <0.05 2,2-Dichloropropane <0.05 Bromobenzene <0.05 cis-1, 2-Dichloroethene <0.05 1, 3, 5-Trimethylbe nzene <0.05 Chloroform <0.05 1,1,2,2-Tetrachloroethane <0.05 2-Butanone (MEK) <0.5 1,2,3-Trichloropropane <0.05 1,2-Dichloroethane (EDC) <0.05 2-Chlorotoluene <0.05 1, 1, 1-Trichloroethane <0.05 4-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 tert-Butylbenzene <0.05 Carbon tetrachloride <0.05 1,2,4-Trimethylbenzene <0.05 Benzene <0.03 sec-Butylbenzene <0.05 Trichloroethene <0.02 p-Isopropyltoluene <0.05 1, 2-Dichloropropane <0.05 1, 3-Dichlorobenzene <0.05 Bromodichloromethane <0.05 1,4-Dichlorobenzene <0.05 Dibromomethane <0.05 1, 2-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dibromo-3-chloropropane <0.5 cis- 1, 3 -Dichloropropene <0.05 1,2,4-Trichlorobenzene <0.25 Toluene <0.05 Hexachlorobutadiene <0.25 trans-1,3-Dichloropropene <0.05 Naphthalene <0.05 1,1,2-Trichloroethane <0.05 1,2,3-Trichlorobenzene <0.25 2-Hexanone <0.5 It FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: Method Blank Client: Environmental Partners Date Received: Not Applicable Project: DevCo Highpoint, PO 64302.3 Date Extracted: 01/26/17 Lab ID: 07-0145 mb Date Analyzed: 01/26/17 Data File: 012605.D Matrix: Soil Instrument: GCMS9 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 99 89 113 Toluene-d8 96 64 137 4-Bromofluorobenzene 102 81 119 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Hexane <0.25 o-Xylene <0.05 Methylene chloride <0.5 Styrene <0.05 Methyl t-butyl ether (MTBE) <0.05 Isopropylbenzene <0.05 trans-1,2-Dichloroethene <0.05 Bromoform <0.05 1,1-Dichloroethane <0.05 n-Propylbenzene <0.05 2,2-Dichloropropane <0.05 Bromobenzene <0.05 cis-1, 2 -Dichloroethene <0.05 1, 3, 5-Trimethylbenzene <0.05 Chloroform <0.05 1, 1, 2,2-Tetrachloroethane <0.05 2-Butanone (MEK) <0.5 1,2,3-Trichloropropane <0.05 1,2-Dichloroethane (EDC) <0.05 2-Chlorotoluene <0.05 1, 1, 1-Trichloroethane <0.05 4-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 tert-Butylbenzene <0.05 Carbon tetrachloride <0.05 1,2,4-Trimethylbenzene <0.05 Benzene <0.03 sec-Butylbenzene <0.05 Trichloroethene <0.02 p-Isopropyltoluene <0.05 1, 2-Dichloropropane <0.05 1, 3-Dichlorobenzene <0.05 Bromodichloromethane <0.05 1,4-Dichlorobenzene <0.05 Dibromomethane <0.05 1,2-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dibromo-3-chloropropane <0.5 cis-1, 3-Dichloropropene <0.05 1,2, 4-Trichlorob enzene <0.25 Toluene <0.05 Hexachlorobutadiene <0.25 trans-1,3-Dichloropropene <0.05 Naphthalene <0.05 1,1,2-Trichloroethane <0.05 1,2, 3-Trichlorobenzene <0.25 2-Hexanone <0.5 7 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 02/01/17 Date Received: 01/25/17 Project: DevCo Highpoint, PO 64302.3, F&BI 701289 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES FOR BENZENE, TOLUENE, ETHYLBENZENE, XYLENES, AND TPH AS GASOLINE USING METHOD 8021B AND NWTPH-Gx Laboratory Code: 701292-01 (Duplicate) Sample Duplicate Reporting Result Result RPD Analyte Units (Wet W0 et Wt (Limit 20) Benzene mg/kg (ppm) <0.02 <0.02 nm Toluene mg/kg (ppm) <0.02 <0.02 nm Ethylbenzene mg/kg (ppm) <0.02 <0.02 nm Xylenes mg/kg (ppm) <0.06 <0.06 nm Gasoline mg/kg (ppm) <2 <2 nm Laboratory Code: Laboratory Control Sample Percent Reporting Spike Recovery Acceptance Anal to Units Level LCS Criteria Benzene mg/kg (ppm) 0.5 81 69-120 Toluene mg/kg (ppm) 0.5 79 70-117 Ethylbenzene mg/kg (ppm) 0.5 80 65-123 Xylenes mg/kg (ppm) 1.5 82 66-120 Gasoline mg/kg (ppm) 20 90 71-131 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 02/01/17 Date Received: 01/25/17 Project: DevCo Highpoint, PO 64302.3, F&BI 701289 QUALITY ASSURANCE RESULTS FROM THE ANALYSIS OF SOIL SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS DIESEL EXTENDED USING METHOD NWTPH-Dx Laboratory Code: 701275-02 (Matrix Spike) Sample Percent Percent Reporting Spike Result Recovery Recovery Acceptance RPD Analvte Units Level et Wt MS MSD Criteria(Limit 20 Diesel Extended mg/kg (ppm) 5,000 <50 119 119 64-133 0 Laboratory Code: Laboratory Control Sample Percent Reporting Spike Recovery Acceptance Analvte Units Level LCS Criteria Diesel Extended mg/kg (ppm) 5,000 125 58-147 0 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 02/01/17 Date Received: 01/25/17 Project: DevCo Highpoint, PO 64302.3, F&BI 701289 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES FOR TOTAL METALS USING EPA METHOD 6020A Laboratory Code: Laboratory Control Sample Percent Percent Reporting Spike Recovery Recovery Acceptance RPD Analyte Units Level LCS LCSD Criteria Limit 20) Lead mg/kg (ppm) 50 99 103 80-120 4 10 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 02/01/17 Date Received: 01/25/17 Project: DevCo Highpoint, PO 64302.3, F&BI 701289 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES FOR VOLATILES BY EPA METHOD 8260C Laboratory Code: 701275-02 (Matrix Spike) Sample Percent Percent Reporting Spike Result Recovery Recovery Acceptance RPD Analvte Units Level (Wet wt) MS MSD Criteria (Limit 20 Dichlore dill uorometh one mg/kg(ppm) 25 <0.5 6v0 10 10-56 60 vo Chlorome the a mg/kg (ppm) 2.5 <0.5 29 36 10-90 22 vo Vinyl chloride mg/kg (ppm) 2.5 <0.05 26 36 10.91 32 vo Bromome than mg/kg(ppm) 2.5 <0.5 40 48 10-110 18 Chloroethane mg/kg (ppm) 2.5 <0.5 34 43 10.101 23vo Trichlorolluoromethane mg/kg (ppm) 20 <0.5 25 37 10-95 39 vo Acetone mg/kg(ppm) 12.5 <0.5 50 66 11-141 28 vo 1,1-Dichloroethene mg/kg(ppm) 25 <0.05 39 52 11-103 29vo Hexane mg/kg(ppm) 2.5 <0.25 17 31 10-95 58vo Methylene chloride mg/kg (ppm) 45 <0.5 57 67 14-128 16 Methyl t-butyl ether (MTBE) mg/kg (ppm) 2.5 <0.05 62 72 17-134 15 trans-1,2-Dichloroethene mg/kg (ppm) 2.5 <0-05 53 64 13-112 19 1,1-Dichloroethane mg/kg(ppm) 2.5 <0.05 56 66 23-115 16 2,2.Dichloropropane mg/kg(ppm) 2.5 <0.05 54 64 18-117 17 cis-1,'2-Dichloroethene mg/kg(ppm) 25 <0.05 61 71 25-120 15 Chloroform mg/kg(ppm) 2.5 <0.05 60 67 29-117 11 2-Butanone (MEK) mg/kg (ppm) 12.5 <0.5 53 70 20-133 28 vo 1,2-Dichloroethane (EDC) mg/kg (ppm) 2.5 <0.05 59 67 22-124 13 1, 1, 1-Trichloroethane mg/kg(ppm) 2.5 <0.05 54 64 27-112 17 1,1-Dichloropropene mg/kg(ppm) 2.5 <0.05 53 64 26-107 19 Carbon tetrachloride mg/kg (ppm) 2.5 <0.05 50 62 22-115 21 vo Benzene mg/kg(ppm) 2.5 <0.03 59 68 26-114 14 Trichloroethene mg/kg(ppm) 2.5 <0.02 59 69 30-112 16 1,2-Dichloropropane mg/kg (ppm) 2.5 <Q05 67 76 31-119 13 Bromodichloromethane mg/kg (ppm) 2.5 <Q05 64 72 31-131 12 Dibromome thane mg/kg (ppm) 2.5 <0-05 61 71 27-124 15 4-Methyl-2-pentanone mg/kg(ppm) 12.5 <0,5 60 78 16-147 26 vo cis- 1,3- Dichlorop ropene mg/kg (ppm) 2.5 <0.05 65 75 28-137 14 Toluene mg/kg(ppm) 2.5 <0.05 71 80 34-112 12 trans-1,3-Dichloropropene mg/kg(ppm) 2.5 <0.05 73 83 30-136 13 1,1,2-Trichloroethane mg/kg(ppm) U <0.05 75 87 32-126 15 2-Hexanone mg/kg (ppm) 12.5 <0.5 65 84 17-147 26 vo 1,3-Dichloropropane mg/kg (ppm) Z5 <0.05 69 81 29-125 16 Tetrachloroethene mg/kg (ppm) 2.5 <0,025 67 80 25-114 18 Dibromochloromethane mg/kg (ppm) 2.5 <0.05 77 90 32-143 16 1,2-Dibromoethane(EDB) mg/kg(ppm) 25 <0.05 69 82 32-126 17 Chlorobenzene mg/kg(ppm) 2.5 <0.05 76 84 37-113 10 Ethylbenzene mg/kg (ppm) 2.5 <0.05 72 82 34-115 13 1,1,1,2-Tetrachloroethane mg/kg(ppm) 2.5 <0.05 76 84 35-126 10 m,p-Xylene mg/kg(ppm) 5 <0.1 71 82 25.125 14 o-Xylene mg/kg (ppm) 2.5 <0.05 76 85 27-126 11 Styrene mg/kg (ppm) 2.5 <0.05 79 89 39-121 12 Isopropylbenzene mg/kg (ppm) 2.5 <0.05 76 86 34-123 12 Bromoform mg/kg(ppm) 2.5 <0.05 70 84 18-155 18 n-Propylbenzene mg/kg(ppm) 2.5 <U5 76 86 31-120 12 Bromobenzene mg/kg (ppm) $5 <0.05 78 87 40-115 11 1,3,5-Trimethylbenzene mg/kg(ppm) 2.5 <0.05 77 88 24-130 13 1,1,2,2-Tetrachloroethane mg/kg (ppm) 2.5 <0.05 74 88 27-148 17 1,2,3.Trichloropropane mglkg(ppm) 2.5 <0.05 67 83 33-123 21 vo 2-Chlorotoluene mg/kg(ppm) 2.5 <0.05 76 84 39-110 10 4-Chlorotoluene mglkg(ppm) 2.5 <0.05 83 89 39-111 7 tert.Butylbenzene mg/kg(ppm) 2.5 <0.05 78 87 36.116 11 1,2,4-Trimethylbenzene mg/kg (ppm) 2.5 <0.05 77 87 35-116 12 sec-Butylbenzene mg/kg (ppm) 45 <0.05 78 88 33-118 12 p-Isopropyltoluene mg/kg(ppm) 2.5 <0.05 79 89 32-119 12 1,3-Dichlorobenzene mg/kg(ppm) 2.5 <0.05 80 88 38-111 10 1,4-Dichlorobenzene mglkg(ppm) 2.5 <0.05 77 87 39-109 12 1,2-Dichlorobenzene mg/kg (ppm) 15 <0.05 82 90 40-111 9 1,2-Dibromo-3-chloropropane mg/kg (ppm) 2.5 <0.5 61 83 37-122 31 vo 1,2,4-Trichlorobenzene mg/kg(ppm) 2.5 <0.25 78 88 31-121 12 Hexachlorobutadiene mg/kg(ppm) 2.5 -0.25 78 90 24-128 14 Naphthalene mg/kg(ppm) 2.5 <0,05 72 90 24-139 22vo 1,2,3-Trichlorobenzene mg/kg(ppm) 2.5 <0.25 78 86 35-117 10 11 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS Date of Report: 02/01/17 Date Received: 01/25/17 Project: DevCo Highpoint, PO 64302.3, F&BI 701289 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES FOR VOLATILES BY EPA METHOD 8260C Laboratory Code: Laboratory Control Sample Percent Reporting Spike Recovery Acceptance Analvte Units Level LCS Criteria Dichlorodifluoromethane 3"gfk6 (ppm) 2.5 41 10.76 Chloromethane mg/kg (ppm) 2.5 67 34-98 Vinyl chloride mg/kg (ppm) 25 74 42-107 Bromomethane mg/kg(ppm) 25 75 46.113 Cbloroethane mg/kg(ppm) 2.5 72 47-115 Trichlorofluoromethane mg/kg(ppm) 2.5 78 53-112 Acetone mg/kg(ppm) 12.5 85 39-147 1,1-Dichloroethene mg/kg(ppm) 2.5 85 65-110 Hexane mg/kg (ppm) 2.5 83 55-107 Methylene chloride mg/kg (ppm) 2.5 94 50-127 Methyl t-butyl ether (MTBE) mg/kg (ppm) 2.5 90 72-122 trans- I.2-Dichloroethene mg/kg(ppm) 2.5 94 71-113 1,1-Dichloroethane mg/kg (ppm) 2.5 91 74-109 2,2-Dichloropropane mg/kg(ppm) 2.5 87 64-151 cis- 1,'2-Dichloroethene mg/kg (ppm) 2.5 93 73-110 Chloroform mg/kg(ppm) 2.5 88 76-110 2-Butanone(MEK) mg/kg(ppm) 12.5 91 60-121 1,2-Diebloroethane(EDC) mg/kg (ppm) 2.5 87 73-111 111,1-Trichloroethane mg/kg(ppm) 2.5 90 72-116 1,1-Dichloropropene mg/kg(ppm) 2.5 91 72-112 Carbon tetrachloride mg/kg(ppm) 2.5 90 67-123 Benzene mg/kg(ppm) 2.5 91 72-106 Trichloroethene mg/kg(ppm) 45 92 72-107 1.2-Dichloropropane mg/kg (ppm) 2.5 102 74-115 Bromodichlorometbane mg/kg(ppm) 2.5 92 75-126 Dibromomethane mg/kg(ppm) 2.5 92 76-116 4-Methyl-2-pentanone mg/kg (ppm) 12.5 99 80-128 cis-1,3-Dichloropropene mg/kg(ppm) 2-5 95 71-138 Toluene mg/kg(ppm) 2.5 104 74-111 trans-1,3-Dichloropropene mg/kg (ppm) 2.5 108 77-135 1, 1,2-Trichloroethane mg/kg(ppm) 2.5 109 77-116 2-Hexanone mg/kg (ppm) 12.5 108 70-129 1,3-Dichloropropane mg/kg(ppm) 2.5 103 75-115 Tetrachloroethene mg/kg(ppm) 2.5 107 73-111 Dibromochloromethane mg/kg (ppm) 2.5 112 64-152 1,2-Dibromoethane (EDB) mg/kg (ppm) 2.5 107 77-117 Chlorobenzene mg/kg (ppm) 2,5 106 76109 Ethylbenzene mg/kg (ppm) 2.5 105 75-112 1,1,1,2-Tetraebloroethane mg/kg (ppm) 2.5 103 76-125 m,p-Xylene mg/kg (ppm) 5 103 77-115 o-Xylene mg/kg (ppm) 2.5 104 76-115 Styrene mg/kg(ppm) 2.5 110 76-119 Isopropylbenzene mg/kg (ppm) 2.5 106 76-120 Bromoform mg/kg (ppm) U 106 50-174 n-Propylbenzene mg/kg(ppm) 2.5 107 77-115 Bromobenzene mg/kg (ppm) U 110 76-112 1,3,5-Trimethylbenzene mg/kg(ppm) 2.5 108 77-121 1,1,2,2-Tetrachloroethane - mg/kg(ppm) 25 109 74-121 1,2,3-Trichloropropane mg/kg (ppm) 2.5 106 74-116 2-Chlorotoluene mg/kg (ppm) 2.5 105 75-113 4-Chlorotoluene mg/kg (ppm) 2.5 109 77-115 tert_Butylbenzene mg/kg (ppm) 2.5 107 77-123 1,2,4-Trimethylbenzene mg/kg(ppm) 2.5 107 77-119 sec-Butylbenzene mg/kg(ppm) 2.5 108 78.120 p-Isopropyltoluene mg/kg(ppm) 15 110 77-120 1,3-Dichlorobenzene mg/kg(ppm) 2.5 109 76-112 1,4-Dichlorobenzene mg/kg(ppm) 2.5 105 74-109 1,2-Dichlorobenzene mg/kg(ppm) 2.5 111 75-114 1,2-Dibromo-3-chloropropane mg/kg(ppm) 2.5 101 68-122 1,2,4-Trichlorobenzene mg/kg(ppm) 2.5 104 75-122 Hexacblorobutadiene mg/kg(ppm) 2.5 105 74-130 Naphthalene mg/kg(ppm) 2.5 108 73-122 1,2,3-Trichlorobenzene mg/kg (ppm) 2.5 107 75-117 12 FRIEDMAN & BRUYA, INC. ENVIRONMENTAL CHEMISTS 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 compound 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. lit — The analysis was performed outside the method or client -specified holding time requirement. ip - Recovery feA outside of control limits. Compounds in the sample matrix interfered with the quantitation of the analyte. 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 samples) percent recovery and/or RPD were out of control limits. The reported concentration should be considered an estimate. s - The surrogate associated with the analyte is out of control limits. The reported concentration should to The 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. 13 01 C i n _ h Z z tid J i 0 a W � CD -- 4, a P ca Q Q q v -mac C1 -. = p � v, �~ D �� ' N TPH-HCID x x TPH- 'e el TPH-Gasoline BTEX by 8021B VOCs by 8260C SVOCs by 8270D .PAHs 8270D SIM = o w N co H C% � S CID n in O Libby Environmental, Inc. 4139 Libby Road NE • Olympia, WA 98506-2518 March 7, 2017 Eric Caddey Environmental Partners, Inc. 1180 NW Maple Street, Suite 310 Issaquah, WA 98027 Dear Mr. Caddey: Please find enclosed the analytical data report for the Devco Project located in Federal Way, Washington. The results of the analyses are summarized in the attached tables. Applicable detection limits and QAIQC data are included. The sample(s) will be disposed of in 30 days unless we are contacted to arrange long term storage. Libby Environmental, Inc. appreciates the opportunity to have provided analytical services for this project. If you have any further questions about the data report, please give me a call. It was a pleasure working with you on this project, and we are looking forward to the next opportunity to work together. Sincerely, Sherry L. Chilcutt Senior Chemist Libby Environmental, Inc. Phone (360) 352-2110 , Fax (360) 352-4154 • libbyenv@aol.com Libby Environmental, Inc. Chain of Custody Record www.LibbyEnvironmental.com 4139 Libby Road NE Ph: 360-352-2110 Olympia, WA 98506 Fax: 360-352-4154 Date: Z7 2/2 / f 1 7 Page: of Client: yv;re'tMP`7�c1 f i3cv Project Manager: �'Z c(',L Address: 10 +JW AIWe. 5' ire,- ifJ PraectName: yt-a city- ZSi -A"" State: V1, Zip; -�?�a 7 Lnration: e -N V•' 11 rr.. City, State: LIA, Phone: )_ g5-')f7110 Fax: Collector: E�w�fS �" I �v T i Date of Collection: VV 1 Client Pro'ecl # �p�{j02 y Email: .ZCov e4il ve, C-D '�vM>►%� Sample Number Depth Time Sample Type Container Type �G��1bR1 eRg�Q�0a1� �� 0� r� ti' �� 5m 4{' �� �Field Notes 1 /nW—? 10715 VWLer RVOA I Ax 2 MW—I Jay r 3 Mk,- 4 MW 5 JAAk/ D2% ► 6 7 B 9 10 11 12 13 14 15 16 17 Relinqd ��rSSS}}} eee by: Date 7 TimeReceivedReceived by Dale I Time - �l �'/ 7 t ) � G j 7 1�� � � Sample Receipt IRemaarrks- GoOd Condition? �J/ IN (Relinquished by: Date 7 Time Received by: Date I Time Temp. ._ •C Seals Intact? Y N MA Relinquished by: Dale 1 Trme Received by: We I Time Total Number of Containers `7 TAT: 24HR 48HR 5-DAY Libby Environmental, Inc. 4139 Libby Road NE Olympia, WA 98506 DEVCO PROJECT Phone: (360) 352-2110 Environmental Partners, Inc. FAX: (360) 352-4154 Federal Way, Washington Email: libbyenv@aol.com Libby Project # L170302-6 Client Project # 64302.4 Analyses of Gasoline (NWTPH-Gx) & BTEX (EPA Method 8021B) in Water Sample Date Benzene Toluene Ethylbenzene Xylenes Gasoline Surrogate Number Analyzed (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) Recovery Method Blank 3/2/17 nd Fed nd nd nd 104 LCS 3/2/17 97% 97% 105 MW-2 3/2/17 nd nd nd nd nd 110 MW-1 3/2/17 nd nd nd nd nd 110 MW-3 3/2/17 nd nd nd nd nd 103 MW-4 3/2/17 nd nd nd nd nd 104 MW-5 3/2/17 nd nd nd nd nd 97 MW-5 Dup 3/2/17 nd nd nd nd nd 98 MW-5 MS 3/2/17 96% 107% 98 MW-5 MSD 3/2/17 93% 94% 99 Practical Quantitation Limit 1.0 2.0 1.0 3.0 100 "nd" Indicates not detected at the listed detection limits. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE (Trifluorotoluene): 65% TO 135% ANALYSES PERFORMED BY: Kodey Eley Page 1 of 2 Libby Environmental, 'Inc. DEVCO PROJECT Environmental Partners, Inc. Federal Way, Washington Libby Project # L170302-6 Client Project # 64302.4 4139 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 FAX: (360) 352-4154 Email: libbyenv@aol.com Analyses of Diesel & Oil (NWTPH-Dx/Dx Extended) in Water Sample Date Surrogate Diesel Oil Analyzed Recovery (%) (µg/1) (µg/1) _Number Method Blank _ 3/2/17 99 nd nd MW-2 3/2/17 104 nd nd MW-1 3/2/17 91 nd nd MW-3 3/2/17 103 nd nd MW-4 3/2/17 124 nd nd MW-5 3/2/17 96 nd nd MW-5 Dup 3/2/17 100 nd nd Practical Quantitation Limit 200 400 "nd" Indicates not detected at the listed detection- limits. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE (2-F Biphenyl): 65% TO 135% ANALYSES PERFORMED BY: Maria Friedrich Page 2 of 2 1 a s s o c i a t e d earth sciences 1 n c c r p c r a t e d Technical Memorandum T Page 1 of 2 Date: February 5, 2015 From: Jon N. Sondergaard, L.G., L.E.G. To: City of Federal Way Project Manager: Jon N. Sondergaard, L.G., L.E.G. i 33325 8th Avenue South , Principal in Charge_ Jon N. Sondergaard, L.G., L.E.G. I Federal Way, Washington 98003 Project Name: Highpoint Mixed Use Attn: 1 Matthew Herrera Project No: KV140263A Subject: ` Summary of Site Visits and Review of Performance and Compliance Data Site Visits Associated Earth Sciences, Inc. (AESI) visited the subject site on November 6, November 17, and December 12, 2014 during the performance of remedial activities. On November 6, 2014 we observed remedial activities in Area 1(Former and Existing Underground Storage Tanks [USTs]), on November 17, 2014 we observed remedial activities in Area 2 (Former Used Oil UST) and on December 12, 2014 we observed the site after completion of remedial activities in Area 1, Area 2, and Area 3 (Underground Vehicle Hoists). During our site visits we did not observe significant groundwater seepage into the remedial excavations and based on our discussions with Mr. Eric Caddey of Environmental Partners, Inc. (EPI), dewatering of the site was not necessary to achieve the desired limits of excavation. Based on observations made at the time of our site visits and discussions with Mr. Caddey of EPI during our November 6 and November 17, 2015 site visits, in our opinion the work was being performed in general accordance with the Interim Action Work Plan (IAWP) dated October 21, 2013 prepared by EPI and reviewed by AESI. Performance and Compliance Testing AESI recently received and reviewed the following technical memorandum document: Summary of Remedial Excavation Results, Former Federal Way School District Maintenance Facility, 1066 South 320th Street, Federal Way, Washington" dated January 28, 2015 prepared by EPI for DevCo, Inc. The document describes the remedial actions related to soil removal in Areas 1 through 4 as well as in the vicinity of an oil/water separator discovered southwest of Area 1, sampling and analysis and the Installation of infiltration galleries in Area 1 and Area 2 for use in future ground water remediation, if required. EPI collected performance soil samples for analysis throughout the remedial excavations to document contaminant concentrations in the soil. If the performance samples exhibited contaminant concentrations above the Model Toxics Control Act (MICA) site -specific cleanup levels, additional excavation and removal of soil was performed until compliance was achieved. If performance samples exhibited contaminant concentrations below the MTCA site -specific cleanup levels, they were used as confirmation samples to document that 911 Fifth Avenue • Kirkland, WA 98033 • P 1 425 827-7701 • F 1 425 827-5424 2911 1/2 Hewitt Avenue, Suite 2 • Everett, WA 98201 • P 1 425 259-0522 • F 1 425 252-3408 1552 Commerce Street Suite 102 • Tacoma,'WA 98402 • P 1 253 722-2992 • F 1 253 722-2993 www.aesgeo.com Associated Earth Sciences, Inc. Technical Memorandum cleanup had been achieved. Based upon the results reviewed, soil at the subject site has been remediated to below the established IVITCA site -specific cleanup levels. In our opinion, the soil remediation activities have been performed and completed in general accordance with the IAWP. Comments The following presents our comments and recommendations regarding future site activity and reporting: 1. We recommend that the final report include documentation for disposal of the USTs and weigh tickets for disposal of contaminated soil. 2. The technical memorandum states that ground water monitoring wells will be installed after the completion of surface improvements. What specific surface improvements will be completed priorto monitoring well installation and what is the estimated schedule for completion of these improvements and installation of the wells. The IAWP indicates thatthe Washington State Department of Ecology (Ecology) will be petitioned for a No Further Action (NFA) determination for the site upon attainment of cleanup levels at the points of compliance for all affected media. The reviewed technical memorandum has documented the soil cleanup. For ground water compliance, how many consecutive quarters of monitoring that exhibit results below the MTCA site -specific cleanup levels will be performed to document compliance. Ecology typically requires four consecutive quarters of compliance to document that an NFA determination is justified. Al JN5/Id KV140263A3 Pro1ects\20140263\KV\WP Project No: KV140263A Page 2 1.a r Herrera 'From: Thom Morin <thomm@epi-wa.com> Sent: Tuesday, February 17, 2015 2:07 PM To: Matt Herrera Cc: Tom Smith; Rob Trivitt; Paul Green; Jack Hunden; Eric Caddey; Tom Neubauer; Tammy Sorensen Sorensen Subject: File #14-101955-00-EN; Third Parry Remediation Review; Highpoint Mixed Use Matt, This email is being provided on behalf of DevCo and Heartland in response to your letter of February 13, 2015 to Mr. Paul Green of Azure Green Consultants. Your letter indicated that in advance of receiving further permit approvals on the subject property it was necessary to respond to the three comments contained in the technical memorandum by AESI (Mr. Jon Sondergaard') regarding AESI's review of EPI's "Summary of Remedial Excavation Results, Former Federal Way School District Maintenance Facility." In addition to the three comments, the AESI technical memorandum stated that "Based upon the results reviewed, soil at the subject site has been remedatiion to below the established MTCA site -specific cleanup levels. In our (AESI's) opinion, the soil remediation activities have been performed and completed in general accordance with the IAWP." AESI's comments are provided verbatim below followed by EPI's responses in italic. 1. We [AESI] recommend that the final report include documentation for disposal of the USTs and weigh[t] tickets for disposal of contaminated soil. EPI concurs. Providing that information is standard of care for a final closure report and will be included in the final document t. 2. The technical memorandum states that ground water monitoring wells will be installed after the completion of surface improvements. What specific surface improvements will be completed prior to monitoring well installation and what is the estimated schedule for completion of these improvements and installation of the wells. Wells will be installed after installation of curb and gutter and final paving. This is necessary in order to limit damage to the wells during final grading and to allow the wellheads to be placed at he correct height to avoid creation of a "trip and fall" hazard. The timing of this work will be as soon after final paving as possible, as determined by the overall construction schedule and completion timeframes. 3. The IAWP indicates that the Washington State Department of Ecology (Ecology) will be petitioned for a No Further Action (NFA) determination for the site upon attainment of cleanup levels at the points of compliance for all affected media. The reviewed technical memorandum has documented the soil cleanup. For ground water compliance, how many consecutive quarters of monitoring that exhibit results below the MTCA site - specific cleanup levels will be performed to document compliance. Ecology typically requires four consecutive quarters of compliance to document that an NFA determination is justified. EPI concurs with AESTs final statement. EPI anticipates groundwater monitoring to establish four consecutive quarters of compliance with the selected cleanup levels prior to requesting an NFA determination. That is the standard of care typically required and is expected for this site. -� 40 EPI understands that with the submittal of this email that all necessary information has been provided to the { City of Federal Way in support of the further permit approvals for the ongoing development of the property. Please let us know if any additional information is required. Thom Thomas C: Morin, L.G. - Preside nt/Pri ncipa I ENVIRONMENTAL PARTNERS,'INC. 1180 NW Maple Street, Suite 310, Issaquah, Washington 98027 425.395.0030 (direct) 1206.954.6957 (cell) I t# 2MM a i-wa.com COC ENVIRON M ENT L 1180 NW Maple Street Suite 310 Issaquah, Washington 98027 ph 425.395.0010 PARTNERS I N C Underground Storage Tank Removal Report Former Federal Way School District Maintenance Yard 1066 South 320t" Street Federal Way, Washington Prepared For: Mr, Tom Smith, Heartland Construction, Inc. 10900 Northeast 8t" Street, Suite 1200 Bellevue, WA 98004 February 111 2015 Prepared By: Environmental Partners, Inc. 1180 NW Maple Street, Suite 310 Issaquah, Washington 98027 (4 Eric L. Caddey, L.G. Senior Geologist (Assess No. 1073547-U7) EPI Project Number: 64302.1 QR j`- TR �: UST Removal Report Former Federal Way School District Maintenance Yard Federal Way, WA February 11, 2015 TABLE OF CONTENTS 1.0 INTRODUCTION.................................................................................................................................1 1.1 Site and Vicinity Description......................................................................................................1 1.2 Prior Work.................................................................................................................................1 1.3 Contaminants of Concern..........................................................................................................2 2.0 OBJECTIVES.....................................................................................................................................2 3.0 UST SYSTEM REMOVAL..................................................................................................................2 3.1 UST Area Description................................................................................................................2 3.2 UST Removal............................................................................................................................2 3.2.1 Background...................................................................................................................3 3.2.2 UST System Removal.................................................................................................. 3 3.3 Assessment Soil Sampling........................................................................................................3 3.4 Assessment Soil Analytical Results..........................................................................................4 4.0 CONCLUSIONS..................................................................................................................................5 5.0 LIMITATIONS..................................................................................................................................... 5 TABLE Table 1 Summary of Soil Sample Analytical Results (in mg/kg) FIGURES Figure 1 General Vicinity Map Figure 2 Site Representation Figure 3 Aerial View With Soil Sampling Locations Figure 4 Summary of Soil Analytical Results in mg/kg ATTACHMENTS Attachment A Underground Storage Tank Closure and Site Assessment Notice and Site Check/Site Assessment Checklist Attachment B UST Removal Documentation Attachment C Copies of Original Analytical Laboratory Reports ENVIRONMENTAL PARTN ERS I N C n UST Removal Report Former Federal Way School District Maintenance Yard Federal Way, WA February 11, 2015 ABBREVIATIONS AND ACRONYMS Abbreviation/ Acronym Definition 3 Kings 3 Kings Environmental, Inc. BTEX Benzene, toluene, ethylbenzene, xylenes COC Contaminant of concern CUL Cleanup level DRO Diesel -range organics Ecology Washington State Department of Ecology EPI Environmental Partners, Inc. GRO Gasoline -range organics IAWP Interim Action Work Plan mg/kg Milligrams per kilogram MTCA Model Toxics Control Act NWTPH-Dx Northwest Total Petroleum Hydrocarbons as diesel NWTPH-Gx Northwest Total Petroleum Hydrocarbons as gasoline RI Remedial investigation UST Underground storage tank WAC Washington Administrative Code ENVI RONMENTAL PARTNERS I N C UST Removal Report Former Federal Way School District Maintenance Yard Federal Way, WA February 11, 2015 1.0 INTRODUCTION Environmental Partners, Inc. (EPI) is pleased to present this Underground Storage Tank Removal Report for the former Federal Way Maintenance Yard located at 1066 South 320th Street, in Federal Way, Washington (Site). The general location of the Site is indicated on Figure 1. The Site is currently owned by DevCo, Inc. (DevCo). Prior to August 2014, the Site was owned and operated by the Federal Way School District (FWSD) as a vehicle and bus maintenance yard with a non -retail diesel fuel and unleaded gasoline filling facility. The work documented in this report was performed in support of removal of the fueling facility and redevelopment of the Site with an apartment complex. The work presented herein was performed by Heartland Construction, Inc. (Heartland), on behalf of DevCo to properly document the removal of three underground storage tanks (USTs) used for diesel fuel and gasoline storage. This report is intended to meet the reporting requirements of Washington Administrative Code (WAC) 173-340-300 and to document compliance with WAC 173-340-450 for USTs. The Washington State Department of Ecology (Ecology) previously assigned Facility I.D. No. 8899181 and Leaking Underground Storage Tank (LUST) No. 1312 to the facility. 1.1 Site and Vicinity Description The Site is approximately 9.84 acres in size and contains a large district warehouse on the west side of the facility, and a four -bay vehicle maintenance building on the east side of the facility (Figure 2). Two 12,000-gallon diesel fuel USTs and one 12,000-gallon unleaded gasoline UST were located in a common tank pit located on the east side of the maintenance building. Three dispenser islands with a metal canopy were located directly north of the USTs. The remainder of the facility is covered by asphalt or gravel for bus and district vehicle parking. Unimproved landscaping and vegetation is present around the perimeter of the Site. As part of the redevelopment activities, the maintenance building was demolished within a few days of the UST removal. Underground utilities such as natural gas and stormwater drainage are located on the west side of the UST pit. Stormwater drains into two basins located to the northwest and west of the UST pit. The basins discharge to an oil/water separator located south of the building. A north -south abandoned sanitary sewer lines located along the east side of the UST pit, and the active sanitary sewer line is located to the north of the pit. Approximate utility locations are shown on Figure 3. The Site is situated in a mixed -use area of commercial and residential properties within the City of Federal Way. The Site is bounded to the north by single-family residences, to the east by an extended stay motel, to the south by South 320th Street and a Safeway commercial center beyond, and to the west by a dental plaza and apartment building. 1.2 Prior Work Impacts to soil and groundwater are present as a result of historical releases of petroleum products from a former UST system that was removed in 1989. Several environmental assessments were conducted by consultants for the FWSD. EPI conducted a remedial investigation (RI) in 2013, and ENVI RON MENTAL PARTN ERS I N C 1 UST Removal Report Former Federal Way School District Maintenance Yard Federal Way, WA February 11, 2015 completed an Interim Action Work Plan (IAWP) in 2014. This UST removal is the first task of the interim actions described in the IAWP. 1.3 Contaminants of Concern EPI's RI report presented a detailed evaluation and development of the cleanup levels for the Site. The contaminants of concern (COCs) for soil include gasoline -range organics (GRO), diesel -range organics (DRO), oil -range organics (ORO), benzene, toluene, ethylbenzene, and total xylenes (BTEX), and naphthalene. 2.0 OBJECTIVES The objectives of the work documented herein: • Document the closure of three individual USTs containing either diesel fuel or gasoline and ancillary equipment; • Assess the potential for a release from the UST system in accordance with applicable regulations; and; Document the findings of the closure and assessment activities in this report. 3.0 UST SYSTEM REMOVAL This section describes the UST area and the UST removal procedures. 3.1 UST Area Description The UST area is located directly east of the maintenance building. The UST pit contained three 12,000-gallon unleaded USTs constructed of single -walled steel USTs, as well as ancillary equipment including flexible fiberglass product piping and dispenser islands. Three vent pipes were located on a metal structure located on the east side of the UST pit. The USTs and dispensers are shown on Figure 3. 3.2 UST Removal EPI was retained by DevCo to function as the on -Site UST site assessor during the removal of the USTs. Mr. Eric Caddey (UST Site Assessor #1073547-U7) of EPI performed the UST assessment activities. 3 Kings Environmental, Inc., (3 Kings) of Battle Ground, Washington (UST Decommissioning No. 5071659), was retained by Heartland to perform the UST system decommissioning and removal activities. E N V I R O N M E N T A L P A R T N E R S I N C 2 UST Removal Report Former Federal Way School District Maintenance Yard Federal Way, WA February 11, 2015 3.2.1 Background The three USTs were reportedly installed in 1989 as replacement USTs for the two original USTs installed in the early 1960s. The original USTs reportedly contained unleaded gasoline. 3.2.2 UST System Removal Prior to UST removal, EPI submitted the necessary Underground Storage Tank 30-Day Notice to Ecology. In addition, 3 Kings coordinated the UST removal activities with the South King County Fire Department. A completed Ecology Underground Storage Tank Closure and Site Assessment Notice and Site Check/Site Assessment Checklist forms are included in Attachment A. The USTs were removed by 3 Kings on October 16, 2014. The USTs were constructed of single -walled steel with epoxy lining. The product piping consisted of flexible fiberglass lines. The USTs and product lines appeared to be in good condition with no visible holes or indications of leakage. No obvious staining or odors were observed in the soils above or below the USTs. EPI monitored the soils with a photoionization detector (PID) and no elevated readings were observed. Prior to removal, each UST was triple -rinsed by Jacob Environmental Services, Inc. The USTs were transported off -Site by 3 Kings to a metal recycler for destruction. Copies of the triple -rinse and UST destruction certificates are included in Attachment B. The piping from the USTs was excavated north to the dispenser islands and removed. The vent lines were removed east to the structure located along the east side of the pit. Mr. Chris Ingham, Fire Deputy fire Marshal for South King County Fife and Rescue, visited the site on October 16, 2014, to observe the removal activities. Mr. Ingham witnessed and verbally approved the removal of the USTs. Subsurface conditions consisted of Sandy Gravel backfill surrounding the USTs, piping, and below the dispenser islands. Native soils below the backfill at the bottom of the excavation and in the excavation sidewalls consisted of Poorly -Graded Sand with Gravel and silt (SP-Unified Soil Classification System). Groundwater in the vicinity of the Site is reportedly 12 to 15 feet below ground surface, and was not encountered in the excavation. 3.3 Assessment Soil Sampling EPI collected a total of 19 discrete soil samples during the course of the UST assessment. Eight soil samples were collected from the sidewalls of the UST excavation at depths ranging from 10 to 12 feet below grade. Six samples were collected from the excavation bottom below the USTs at a depth of 14 feet. Two samples were collected beneath the former piping runs, and three soil samples where collected from the dispensers at a depth of 3 to 4 feet. Soil samples were collected from undisturbed soil at each sample location. ENVIRONMENTAL PARTN ERS I N C 3 . UST Removal Report Former Federal Way School District Maintenance Yard Federal Way, WA February 11, 2015 A total of seven soil samples were collected from the approximately 350 cubic yards of stockpiled overburden material, which consisted of a silty sand with gravel. The locations of excavation soil samples collected are depicted on Figure 4. Due to the depth of the excavation, soil samples were collected from the excavator bucket. The top 6 inches of slough was first removed, and then the sample was collected directly from the underlying undisturbed material. Samples from beneath the piping and dispensers were collected by hand from the open excavation. Discreet stockpile samples were collected directly from the stockpile after removing the top 6 inches of slough. The sample was placed into a glass jar supplied by the laboratory. The portion of the sample to be analyzed for volatile organic compounds was collected using EPA Method 5035 sampling kits provided by the laboratory. Sample containers were properly labeled, placed into a cooler with ice for transport to the laboratory. Non -disposable sampling tools were properly decontaminated prior to each use. The samples were submitted to Libby Environmental, Inc., and analyzed for GRO using the Northwest Total Petroleum Hydrocarbons as gasoline -extended (NWTPH-Gx), ORO and DRO using NWTPH-Dx extended, and BTEX using EPA Method 8021 B. Selected soil samples were also analyzed for total naphthalenes using EPA Method 8260C. 3.4 Assessment Soil Analytical Results A summary of soil sample analytical results is included in Table 1, and copies of the original laboratory analytical reports are presented in Attachment C. Contaminant concentrations exceeding the laboratory method detection limit (MDL) were identified in only three of the 19 assessment samples analyzed. Two of the samples were collected from below the diesel fuel dispenser islands, and the other sample was collected form below the gasoline product piping. No other soil samples contained detectable concentrations of any of the target analytes. GRO was not detected in any sample at a concentration greater than the MDL. DRO was detected at a concentration of 659 milligrams per kilogram (mg/kg) in a sample from below the northwest dispenser island, and at 1,220 mg/kg in a sample from below the southwest dispenser island; both results are less than the Model Toxics Control Act (MTCA) Method A Soil Cleanup Level for Unrestricted Land Uses (MTCA Method A Soil CUL) for DRO of 2,000 mg/kg. ORO was not detected in any sample at a concentration greater than the MDL. Benzene and toluene were detected in one sample collected from underneath the gasoline product piping at 0.026 mg/kg and 0.24 mg/kg, respectively. These concentrations are less than the MTCA Method A Soil CULs of 0.03 mg/kg and 7 mg/kg. Ethylbenzene was not detected in any sample at a concentration greater than the MDL. Total xylenes were detected in one soil sample at a concentration of 0.16 mg/kg, which is less than the MTCA Method A Soil CUL for total xylenes of 9 mg/kg. Total naphthalenes were not detected in any sample at a concentration greater than the MDL. ENVIRONMENTAL PARTNERS I N C 4 UST Removal Report Former Federal Way School District Maintenance Yard Federal Way, WA February 11, 2015 4.0 CONCLUSIONS The following conclusions are supported by the actions at the Site described above: • A total of three steel USTs containing diesel fuel and unleaded gasoline were decommissioned and removed from the Site. No visual pits, holes, or corrosion were observed in any of the USTs removed. No indications of leakage were observed in any product piping or beneath the dispensers. Laboratory analysis confirms that there are no impacts to soil in the area of the removed USTs; however, COCs were detected at concentrations less than the MTCA Method A Soil CULs beneath the two diesel fuel dispenser islands and beneath the gasoline product piping. • Releases from the original USTs were previously reported to Ecology and a LUST number has been assigned. EPI's IAWP describes the extent of impacts and the remedial actions planned for the Site. Remedial actions are currently underway and results will be submitted to Ecology under the Voluntary Cleanup Program in a future RI Report. 5.0 LIMITATIONS To the extent that preparation of this UST Removal Report has required the application of best professional judgment and the application of scientific principles, certain results of this work have been based on subjective interpretation. EPI makes no warranties express or implied, including and without limitation, warranties as to merchantability or fitness for a particular purpose. The information provided in this UST Removal Report is not to be construed as legal advice. This UST Removal Report was prepared solely for DevCo and Heartland, and the contents herein may not be used or relied upon by any other person without the express written consent and authorization of EPI ENVIRONMENTAL PARTN E R S I N C 5 Table 1 0 N "STl -n5T -n T C < < C C < < C C C C C C C C 3 cn C C C C 1 1 1 1 1 1 1 1 rt 0) w En W cn N cn N cn cq C� C cn C Cn Cn cn < Cn < (n < cn <u -u C C T O 'O W 1 1 1 1 OD -I < 0)M < CA) N N T CA) T cn Z (n Z /'� Z � W W W W W O Lk Li Lk Li LiL� O N O O N N O N 3 4N. 4h, .01 > > > �� O > N O O N N > O > N W W W W W CD 'C v S= �D 0 0 0 0 0 0 0 0 0 0 0 0 0 \ 0 0 \ 0 \ 0 \ 0 \ 0 \ o v N \ N \ N \ N \ N \ N \ N \ N \ N \ N \ N \ N N \ N N N N N N O \ O \ O \ O \ O \ O \ O \ O \ O \ O \ O \ O \ O \ O \ O \ O \ O \ O \ O \CD C A A A A A A A A A A A A A A A A A A A O O O O O O O O O O O O O O O O O O O 0 O CD C A A A A A A A A A A A A A A m A A A ' N 'm 0 2 N 0 N cn N cn N M N al N M N M N al N M N cn N cn N cn N cn N cn� N U7 N Ul N Ul G CIf � v � W N d O r ( n O O = O n 0 �/► CD 0 a A A A � A � A -Ph, A -P� C A � A � A ? 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FIGURE 1 GENERAL VICINITY MAP PREPARED CID � ENVIRONMENTAL BY P A R T N E R S 1 N C NOTES. REPORT UST REMOVAL REPORT SOURCE: USGS 7.5 MINUTE QUADRANGLE i (TOPOGRAPHIC) ;,' N � J LOCATION FORMER FEDERAL WAY SCHOOL DISTRICT MAINTENANCE YARD POVERTY BAY, WA .I„Ia �- 1066 S. 320TH ST, FEDERAL WAY, WASHINGTON 1961 1�7fiJ, PREPARED DEVCO, INC- REVISED 1994 FOR :�• �' ` DATE OR4WNBY REV/EWEOBY PROJECTNUMBER SCALE 4,24,000 c y4 IT",. • : •�'ST) , q, 11/7/14 ALW ELC 643023 W-7 I LANDSCAPING STORAGE AREA f �AT E w w g GRAVEL PARKING. ;a - ,a .�L a UJI 1- ff -WIN_- .. .. .UJI . _ ]{ Q 'R a Rl57RICT TRAINING i WAREHOUSE CLASSROOM 'BUILDING }r 1 i w ASPHALT PARKING PARKIN i FORMER 1 a� MAINTENANCE-- SHOP FORMER LOCAIT 1i f OF LISTS Q 1 OFFICES ■ -- GRAME ENTRANCE L FIGURE 2 saiorysT SITE REPRESENTATION tir PREPARED K I ENVIRONMENTAL _ BY PARTNERS INC RETAIL j,- -. REPORT UST REMOVAL REPORT NOTES• { APPROXIMATE PROPERTY BOUNDARY .,SAFEWAY. LOCA770N FORMER FEDERAL WAY SCHOOL DISTRICT MAINTENANCE YARD N FUF-L CENTER 1066 S. 320TH ST, FEDERAL WAY, WASHINGTON PREPARED DEVCO, INC. 0 25 50 100 FOR DATE DRAWNBY REWIEWEDBY I PRGVECTNUMBER SCALE, >'= 100' r - 1117/14 ALW ELC 64302.3 ASPHALT FORMER MAINTENANCE SHOP k I I r f a�a all dIV! [f7I 1 I I I I I I I I I I I �ILU rlLU zlw U)I� I ASPHALT I I I q ��F,O Glc FW�DP2:3 I. FjW-DM:3� F W-PP1^q- UNIMPROVED LANDSCAPING r� as POWER POLE FW-DP3:3 FW-PP2:3 FW-St3:: 211 F ST2 N 14 FW-SW4:12 • • r FN{47�T - :14 ST3-N:14 UST UST UST / FW-SP1 1 z 3 j FW-SP30 mE� arl 1 R I CONCRETE FW-USt1- : 4� rF UST3•S:14 FW-SP29 I 714 FW-SW8a10 IT FW-SW6:10 —FW-SP5 t FW-SP40 r FW-SW5:10 , FW-SW7:10 I I � / I , I QCLEAN APPROXIMATE SOIL LIMITS OF UST OILIWATER STOCKPILE EXCAVATION SEPARATORI I J I TO APPROXIMATE PROPERTY BOUNDARY SEWER PRODUCT PIPING —•—•— SANITARY SEWER NATURAL GAS POWER r SAMPLE LOCATIONS ODISPENSER 11-ND SOURCE GOOGLEMAPS. 2013 i 1 Tr MOTEL 1 MOTEL GRAVEL I j ¢ d0 z FIGURE 3 AERIAL VIEW WITH SOIL SAMPLING LOCATIONS �EBYR� ENVIRONMENTAL 11 PA RTN E R S 1 N C REPORT UST RE W%Od, REPORT AAAJJJN q II LOCA77 M' FORMER FEDERAL WAY SCHOOL DISTRICT MAINTENANCE YARD 1066 S 320TH ST. FEDERAL WAY, WASHINGTON PREP '�� FOR DEVCO. ING '10 20 OA7E ORAMWBY RENENEO BY APWECTNUYB9P _ SCALE.1 20' 1117/14 ALWICLM ELC A3023 I aluj ¢Ivy, ASPHALT izz UNIMPROVED LANDSCAPING — ASPHALT--� 9 + FW-DP2:3 aa0 s DRO ]xo D �02 •0 f0 E •oos k N-19 POWER FW-DP1:3 » POLE FORMER 5,, w MAINTENANCE 9 Qw SHOP r a,u FW-PP2.3 E Q05 25 q15 ORD 75 I n � T 034 x 0A iw-PP1] I I I I I MOTEL I I I� 1 I ND I LIST UST UST ND 1 2 ® DIESEL SOL Flv.i1812-S1,d Ho CONCRETEL-1 1 Fw ,3T3s u Fws'R _� TvwsTla 1+ Nv n j LA Np FlY.�.YB:12 FW�Pd >no vW awa 10 F! r ND I A0 •WSWi 10 INoym SAMPLEN I NO GASOLINE-RANGEORGANICLEAN APPROXIMATE DIESEL-RANGEOTpSANICSSOIL LIMITS OF UST I �m'� N OILIWATER STOCKPILE EXCAVATION SEPARATOR TOTALLYLEN 0010 = DETECTED CONCENTRATION GREATER THAN iTHE LABORATORY DETECTION LIMIT 1 NO = CONCE` DETECTION THAN EYTES. DNS IFOR J REFETHOD R ALL A AESS MITTS (MDLITRAT R TO GRAVEL < 13�07 TABLE 2 FOR MOIL VALUES UST = UNDERGROUND STORAGE TANK Q I PIP = PRODUCT PIPING SAMPLE DP = DISPENSER ISLAND SAMPLE Z SW = SIDEWALL SAMPLE 1 I SP = STOCKPILE SAMPLE i FIGURE 4 I SUMMARY OF SOIL ANALYTICAL TO RESULTS IN MG/KG SEWER PR ENVIRONMENTAL II BYEPARE PA RTNE RS INC I AE) R REiOBT VI-1 RE4<wAL REPORT APPROXIMATE PROPERTY BOUNDARY PRODUCTPIPING .-.._—.— SANITARY SEWER LOCATIM' FORMER FEDERAL WAY SCHOOL DISTRICT MAINTENANCE YARD 1D66 S- 320TH ST, FEDERAL WAY, WASHINGTON NATURAL GAS I POWER ME"AB® DEVCO INC, SAMPLE LOCATIONS E 6 10 20 TAW O DISPENSER ISLAND BATE BNAWBBY /dENEMIDOY Aid.EGTA'1/A/BER SCALE'1'+20 11/7/l4 ALW/CUM ELC U3023 Attachment A Underground Storage Tank Closure and Site Assessment Notice and Site Check/Site Assessment Checklist UNDERGROUND STORAGE TANK FOR OFFICE USE ONLY Site Check/Site Assessment Checklist Site#: WA SN IN OT ON iTATE Facility Site lD#: 0E PANTNEN OF ECOLOGY When a release has not been confirmed and reported, this Site Check/Site Assessment Checklist must be completed and signed by a person certified by ICC or a Washington registered professional engineer who is competent, by means ofexamination, experience, or education, to perform site assessments. The results of the site check or site assessment must be included with this checklist. This form must be submitted to Ecology at the address shown below within 30 days after completion of the site check/site assessment. SITE INFORMATIOiN: Include the Ecology site ID number if the tanks are registered with Ecology. This number maybe found on the tank owner's invoice or tank permit. TANK INFORMATION: Please list all tanks for which the site check or site assessment is being conducted. Use the owner's tank ID numbers if available, and indicate tank capacity and substance stored. REASON FOR CONDU(C: ING SITE CHECK/SITE ASSk SSMENT- Please check the CHECKLIST: Please initial each item in the appropriate box. SITE ASSESSOR INFORMATION: This information must be signed by the registered site assessor who is responsible for conductin the site check/site assessment. date item. Underground Storage Tank Section Department of Ecology PO Box 47655 Olympia WA 98504-7655 Site ID Number (Available from Ecology if the tanks are registered): 8899181, Site/Business Name: Eormer Federal Way School Dictrmcl Maintenance Yard Site Address: ��e 6 320th Street Telephone: Street y State Zip Code Tank ID No. 3 Tank Capacity 12,000 ag llonS 12 00 allons Investigate suspected release due to off site environmental contamination. Extend temporary closure of UST system for more than 12 months. UST system undergoing change -in-service. X_ UST system permanently closed with tank removed. Abandoned tank containing product. Required by Ecology or delegated agency for UST system closed before 12/22/88. Other (describe): ECY 010-158 (Rev. 2-06) Substance Stored diesel fuel diesel fuel unleaded aasoline Each item of the following checklist shall be initialed by the person registered with the Department of YES NO Ecology whose signature appears below. 1. The location of the UST site is shown on a vicinity map. 2. A brief summary of information obtained during the site inspection is provided. X (see Section 3.2 in site assessment guidance) 3. A summary of UST system data is provided. (see Section 3.1.) 4. The soils characteristics at the UST site are described. (see Section 5.2) 5. Is there any apparent groundwater in the tank excavation? 6. A brief description of the surrounding land use is provided. (see Section 3.1) 7. information has been provided indicating the number and types of samples collected, methods used to collect and analyze the samples, and the name and address of the laboratory used to perform the X 8. A sketch or sketches showing the following items is provided: - location and ID number for all field samples collected X - groundwater samples distinguished from soil samples (if applicable) NA - samples collected from stockpiled excavated soil _ - - tank and piping locations and limits of excavation pit - adjacent structures and streets - aoproximate locations of any on -site and nearby utilities 9. If sampling procedures different from those specified in the guidance were used, has justification for using these alternative sampling procedures been provided? (see Section 3.4) NA 10. A table is provided showing laboratory results for each sample collected including; sample ID number, constituents analyzed for and corresponding concentration, analytical method and detection limit for X that method. 11. Anv factors that may have compromised the quality of the data or validity of the results are described. 12. The results of this site check/site assessment indicate that a confirmed release of a regulateo substance has occurred. Eric Cadde f LG FInviroompotal Partners,Inc Person registered with Ecology Firm Affiliated with Business Address: 11 SO NW MANE St SIP R Q Telephone: U 4:25-29!jnn2:2 Street nuah WA 98027 City State Zip Code I hereby certify that I have been in responsible charge ofperforming the site check/site assessment ed above. Persons submiltingfalse information are subject t �s undir Chapter 10 WAC Signatu�person Registered with Ecology if you need this publication in an alternate format, please contact Toxics Cleanup Program at (360) 407-7170. For persons with a speech or heating impairment call 711 for relay service or 800-833-6388 for TTY. t UNDERGROUND STORAGE TANK+ FOR OFFICE USE ONLY Closure and Site Assessment (Notice r; Facility Site ID #: s W A S 0 1 A 6T0M STATE EE CA QT L EO . C aY See back of form for instructions Please ✓ the appropriate box(es) ❑ Temporary Tank Closure ❑ Change -In -Service R Permanent Tank Closure ❑ Site Check/Site Assessment Site Information Owner Information Site ID Number UST Owner/Operator (Available from Ecology the tan s aro regls(Bred) Site/Business Name Fnrmpr FW.Rrl Fnrlft Mailing Address Street Street Site Address City/State Zip Code Owners Sig Service Company3_Kjr P.O. Box City/State Federal Way, WA Zip Code 9800A __ Telephone (425 1 Tank Closure/Change-in-Service Company Certified Supervisor .^Ad I Decommissioning Certification No. Supervisor's Signature Date Address Street P.O. Box Rrittipami Ind WA P8604 Telephone (,3ED $,q6_89p2 City State Zip Code Site Check/Site Assessor Certified Site Assessor Environmental Partners. Inc. - Eric Cadde ry Address 1 1 RO MIA! N4anla St Sate 310 Street P.O. Box WA 98027 Telephone (�2j 981-3699 City State Zip Code Tank Information Tank ID Closure Date Closure Method Tank Capacity —OM11-4— Removal 2 _1 f1/1 R11 d Remnval12,onn 1fl/1F/1d/1d —Removal— 12.OQ� Substance Stored nasnline diesel f, lei — riffs-c l fr lei lei _ Contamination Present at the Time of Closure ❑ q< ❑ Yes No Unknown Check unknown If no obvious contamination was observed and sample results have not yet been received from analytical lab. . ❑ Yes No If contamination is present, has the release been reported to the appropriate regional office? To receive this document in an alternative format, contact the Toxics Cleanup Program at 360-407-7170 (voice) or 1-800-833-6388 OR 711 (TTY) ECY 020-94 (Rev. 2-06) Attachment 6 UST Removal Documentation T _ , SOUTH KING FIRE & RESCUE INVOICE_ -- IN E!, ARI0NAL FIRCE CODE PERMIT' 31617 1st Avenue South Federal Way, WA 98003 Permit #: 0 2 4 7 Bus: 253-946-7248 Fax: 253.529-7206 Inspected by: /p & � Z j- ❑ Initial ❑ Renewal > L� ,7 r D ❑ Non -Profit (Fees discounted 50%) Date: Application for permit to maintain, store, use or handle materials, or to conduct processes or activities which produce conditions hazardous to life or property, or to install equipment used in connection with such activities. Permit fee covers annual inspection and one reinspection; additional reinspections to secure compliance $73.50/hr (minimum'/ hour) SEND INVOICE TO CORPORATE/MANAGEMENT COMPANY IF YOU DO NOT ISSUE PAYMENT ON SITE "PAYMENT IS DUE WITHIN FOURTEEN (14) DAYS OF INVOICE DATE` Permit For 5 ecifics=Occu ant loads, quantities. container sizes etc. Fee �0s 7- 7- Z A licanl Printed Name: K4,t5s 61i'llevv% T Title: Phone: Paid on site ❑ Cash ❑ Check # 7 Amount :�Ut r Received b.: Tear here --return lower portion of invoice with payment —retain top portion for your records 16 66 > 3 Z CD Your current permit expires: TOTAL DUE: Make check payable to: SOUTH KING FIRE & RESCUE OR SKF&R Your new permit will be mailed to your business mailing address upon receipt of payment unless we are notified otherwise Form 31d Permit #: 02147 clew. JM.-. - - - - - - - ... * , SAFF 66 h4 ig Im—ts VFW- cW.wmkwd•rW at tim I vo V#M tW" 1,00grM96Mt , = R Qk' 340 Oregon Way, Suite C Longview, VIA 98632 Office: (360) 577-0264 Fax: (360) 200-6109 www.jacobenviroservices.com Providing Personalized Senlice with Affordable Rates PAS G-t, P Z00 3 Tr,rJa, tJA`f f Ae- ram-+- , L-r ra L B.G.L. / FREIGHT BILL N2 1573 —f oKIE 1 a1 16-liq STATEMENT PLEASE PAY LAST AMOUNT IN BALANCE COLUMN Combination Bill of Lading and Freigl;t Bill 0,3 Generator: V14A Po6-7t 3 a0 G t C 10 (6 S �0Y � S7` z°d�—� f-t/4?� F9`7 Receiving Facility: (�f 2llj Operator:/ �� Job #: Unit #: Received by:' ❑ Credit Card ❑ Check # ❑ Cash g—On Account P.O.# Customer warrants that the waste material being transferred by the above collector does not contain any contaminants including, without limitations; pesticides, chlorinated solvents at concentrations greater than 1.000 PPM, PCBs at greater concentrations than 2PPM (or PPM with manifest), or any other material classified as hazardous by 40 CFR part 261. customer subparts C and 0 (implementing the Federal Resource Conservation and Recovery Act, or by any equivalent state hazardous waste or hazardous substance classification program). Should laboratory tests find this waste product not in compliance with 40 CFR part 261, ustomer (generator) agrees to pay for all disposal costs incurred. Signature X _ Date _ A FINANCE CHARGE OF 1-5% per month or $25.00 which ever is greater, maybe applied to any past aue amounr. rasr ❑ue accoul1M ,IIGy be placed on C.O.D. without notification. If outside collection action is necessary, purchaser shall pay all costs of collection including reasonable attorneys fees. JACOSESS92KP USDOT 1797775 'rni1T`c-TP.ANSPCRTIER VELLON- REGEIViNG FACILRY P:PIi:-GEtica4TOR cr e , 5EA. ]HON & METALS CORD --7 G40026 . '6WS,MYiPUST. •.SFArrLF- WAWlCa• }-061MOW 10/28/2014 25021 i Control# 554736 3.KINGS SAL Total Lbs 9,940 Pb:-Boa 28.0 f Prepared By: Retax- 1 Ticket Commodity SarAss TSte Net UM Price Total Scrap 55.9 :p 46, 030. 9.990 N 160.0000 795.20 �A --- -- 55,97-0 — 4.6,Q30 -- 9,940 395,20 I, the unaersigned, ai#irm under pena3cy o .2av that• W the best of my rcaaxledge, the property that is. subject to- ChiS transaction As not stoxer- o-apexcy. 6�,oC]261-1 1: 1 25000_io`5ixL5°3 SEATTLE IRON& METALS CORP. 25021 Control# 554794 3 KnTGS ENVIPOWVB:"aS-a�- Total Lbs 17,400 w Box,22C 1) A. . Prepared ay_ I 3V.6-taj-" Ticket 00 N Taxe Pat 'Um Price Total -16,390 17,400 14 160.0000 1,392.00 --- 46,090 17 r400 1,392.00 -o-iledge. tl� PJ:oP4!rPY fiat is U7, j 9"P S,44� N Vr 71 Z T OWN- S A O'D 4 9:110 12S000105-1�.&53595-3?9998f[g S1. AME. IRON V IYI.EFALS CORP 6.7l S. NIVRTLEST. • SEATTLE WAMIM . YY41 10/2912016 ,�r3,` �tml$ 554$09 Total Zbs 20.879 Gress %xa Net cm price Total '4r 669.60 fe a ,, Y��rrf.• •. .-^:;°-mot?'• 'Gk,-:4`.lV K .f _ -'�rur �7.--Fyn('' •�- Y_.•• ;,.., ".■�'. ski.'-}_� .� f.•. �='r .•. " . _ P1l:TGR�i'y�';+GSiOfJl�"i: ". _ _ ��QQ ++����qq�r ., -, �:.., f r,.� , { '�;� tl- fi0i a"" !riYf3TLE ST. 'S ST TEE" Wf[ 98i0.4 • I2m 682-004P + 7 r" - - 6db053� 1'f}I29�14 +**•1,663.:54 'i Ay- +[3TLY, ** 2;,669 Ao-Z1ars find 60 Cents € �ySixCiC t' FTER S3X R1OUNSS i � Y 70 + HE ORDER 0E � 3 KINGS E1gVIROj4j'jF AL � 10 Box 280 oe ! _f ' Battle Ground, WA. 98604 ;�• 3�: 1:15©OCIO5I:t5,595379995l{r Attachment C Copies of Original Analytical Laboratory Reports B e Libby Environmental, Inc. 4139 Libby Road NE • Olympia, WA 98506-2518 October 21, 2014 Eric Caddey Environmental Partners, Inc. ' 1180 NW Maple Street, Suite 310 Issaquah, WA 98027 Dear Mr. Caddey: Please find enclosed the analytical data report for the Devco High Point Project located in Federal Way, Washington. Soil samples were analyzed for Gasoline by NWTPH-Gx and BTEX by EPA Method 8260C, and Diesel & Oil by NWTPH-Dx/Dx Extended on October 17 & 20, 2014. The results of the analyses are summarized in the attached tables. Applicable detection limits and QA/QC data are included. All soil samples are reported on a dry weight basis. An invoice for this analytical work has been emailed. Libby Environmental, Inc. appreciates the opportunity to have provided analytical services for this project. If you have any further questions about the data report, please give me a call. It was a pleasure working with you on this project, and we are looking forward to the next opportunity to work together. Sincerely. Jamie L. Deyman President Libby Environmental, Inc. Phone (360) 352-2110 • Fax (360) 352-4154 . libbyenv@aol.com � co � co � m , CO � —1 8 � --k Ul -t •P W O CO Oo —1 � Ul -P W -o n c� o A r- J �o -0 F. �Ny 11 K � (D ? �. r cr ' CD Q a Q '� Q a \ ' ' a loM4W--- mn � D m � , b � Z(0 z ;C� O O, a 3 0zL m CD■', x Tl O O m, rn j x N N { W V A O � CD co m rn m PDo ,�• O 7 <CD u N u c (OD -, 0 xxx o ° n 7� Q'9 CD fl, � m h ID`C CD CD m CD x x, X ,y� A X .a r� 4a ,� c tD k, mc3o r3o A Q m ( Q O a G E n n O CD -W (D fais C7 m o co CD --- co 0 7 p 4 NO 'Libby Environmental, Inc. 413 9 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 DEVCO HIGH POINT PROJECT FAX: (360) 352-4154 Environmental Partners, Inc. Email: libbyenv@aol.com Federal Way, Washington Libby Project # L141017-4 Client Project # 64302.3 Analyses of Gasoline (NWTPH-Gx) & BTEX (EPA Method 8260C) in Soil Sample Date Benzene Toluene Ethylbenzene Xylenes Gasoline Surrogate Number Analyzed (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Recovery (%) Method Blank 10/17/14 nd nd nd nd nd 94 LCS 10/17/14 119% 107% 95 FW-SP1 10/17/14 nd nd nd nd nd 95 FW-SP2 10/17/14 nd nd nd nd nd 96 FW-SP3 10/17/14 nd nd nd nd nd 95 FW-SP4 10/17/14 nd nd nd nd nd 94 FW-SP5 10/17/14 nd nd nd nd nd 95 FW-SP5 Dup 10/17/14 nd nd nd nd nd 93 L141016-1 MS 10/17/14 109% 100% 95 L141016-1 MSD 10/17/14 102% 92% 96 Practical Quantitation Limit 0.02 0.10 0.05 0.15 10 "nd" Indicates not detected at the listed detection limits. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE (Toluene-d8): 65% TO 135% ANALYSES PERFORMED BY: Paul Burke Page 1 of 2 'Libby Environmeatal, Inc. 4139 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 DEVCO HIGH POINT PROJECT FAX: (360) 352-4154 Environmental Partners, Inc. Email: libbyenv@aol.com Federal Way, Washington Libby Project # L141017-4 Client Project # 64302.3 Analyses of Diesel & Oil (NWTPH-Dx/Dx Extended) in Soil Sample Date Surrogate Diesel Oil Number Analyzed Recovery (%) (mg/kg) (mg/kg) Method Blank 10/17/14 73 nd nd Method Blank 10/20/14 90 nd nd FW-SP 1 10/17/14 98 nd nd FW-SP2 10/17/14 94 nd nd FW-SP3 10/17/14 98 nd nd FW-SP4 10/17/14 100 nd nd FW-SP5 10/20/14 93 nd nd Practical Quantitation Limit 50 100 "nd" Indicates not detected at the listed detection limits. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE (2-F Biphenyl): 65% TO 135% ANALYSES PERFORMED BY: Ramses Osorio Page 2 of 2 a Libby Environmental, Inc. 4139 Libby Road NE Olympia, WA 98506-2518 October 21, 2014 Eric Caddey Environmental Partners, Inc. 1180 NW Maple Street, Suite 310 Issaquah, WA 98027 Dear Mr. Caddey: Please find enclosed the analytical data report for the Devco High Point Project located in Federal Way, Washington. Soil samples were analyzed for Gasoline by NWTPH-Gx and BTEX by EPA Method 8260C, Specific Aromatic Hydrocarbons by EPA Method 8260C and Diesel & Oil by NWTPH-Dx/Dx Extended on October 20 & 21, 2014. The results of the analyses are summarized in the attached tables. Applicable detection limits and QA/QC data are included. All soil samples are reported on a dry weight basis. An invoice for this analytical work has been emailed. Libby Environmental, Inc. appreciates the opportunity to have provided analytical services for this project. If you have any further questions about the data report, please give me a call. It was a pleasure working with you on this project, and we are looking forward to the next opportunity to work together. Sincerely, Jamie L. Deyman President Libby Environmental, Inc. Phone (360) 352-2110 • Fax (360) 352-4154 • libbyenv@aol.com C o m i7 �1 v 1 O� 3CJl A 1 W N 1 O (0 w --A M al W N IF- IF - C CD mttl S" c.. 61 1✓ a - c. w w w �.� CD � z � 0 0 C m m r. CD — CD m < CD o. m <" m a, T. < m a loe N'CD 0 < \ L a. (D IiTi i i I I Lo I ��K I L I 0 0� 0 tl �+ 1 (n — G � C O J �� r a m dye �O •Sy�N v' � ��!S D" ID U, n m N � � = O N cn oo i CJI n CD CD ry � 6) Cn A W 1 N > 1 O CO OU �I D7 U7 W N U) 3 CD a fn 3 rD na cn ❑l cr 0- s �v m 4�a Y 1i w f (D (D CD m �D m CD m < (� O < ca. < n { p v cr < Cr 0- (D (D 60, y y CD :il CC, p [�• +I xy cU CD co N X f rr�7'%`��1• o • 'S�, -Fl y � r. II v -TI -L n `D -� fu a z o m m A Ul i D n n D n o A r' (D O O C CD (D � r— O (D .. l CO Cn Q o z C' g CY) m �• r � CD Y �. v N M °') O O i v x � (n cwn 0 I . Q�'r N N � N • I Ul � O n O m c- D p 0 CD CD. CD- n S ti CD 1 0 • _ CL -' S v (D CD O C!) O_ N m o 4 � o O _ r El (D Z) 03 0 1 ` Libby Environmeni.al, Inc. 413 9 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 DEVCO HIGH POINT PROJECT FAX: (360) 352-4154 Environmental Partners, Inc. Email: libbyenv@aol.com Federal Way, Washington Libby Project # L141020-5 Client Project # 64302.3 Analyses of Gasoline (NWTPH-Gx) & BTEX (EPA Method 8260C) in Soil Sample Number Date Analyzed Benzene (mg/kg) Toluene (mg/kg) Ethylbenzene (mg/kg) Xylenes (mg/kg) Gasoline (mg/kg) Surrogate Recovery (%) Method Blatik 10/20/14 nd nd nd nd nd 93 LCS 10/20/14 123% 113% 97 FW-DP1:3 10/21/14 nd nd nd nd nd 96 FW-DP2:3 10/21/14 nd nd nd nd nd 96 FW-DP3:3 10/21/14 nd nd nd nd nd 96 FW-PP1:3 10/21/14 nd nd nd nd nd 96 FW-PP2:3 10/20/14 0.026 0.24 nd 0.16 nd 95 FW-SW4:12 10/21/14 nd nd nd nd nd 90 FW-SW5:10 10/20/14 nd nd nd nd nd 98 FW-SW7:12 10/20/14 nd nd nd nd nd 97 FW-DP1:3 MS 10/21/14 132% 121% 97 FW-DP1:3 MSD 10/21/14 134% 122% 94 Practical Quantitation Limit 0.02 0.10 0.05 0.15 10 "nd" Indicates not detected at the listed detection limits. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE (Toluene-d8): 65% TO 135% ANALYSES PERFORMED BY: Sherry Chilcutt Page 1 of 7 `Libby Environmental, Inc. 4139 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 DEVCO HIGH POINT PROJECT FAX: (360) 352-4154 Environmental Partners, Inc. Email: libbyenv@aol.com Federal Way, Washington Libby Project # L 141020-5 Client Project # 64302.3 Analyses of Gasoline (NWTPH-Gx) in Soil Sample Date Surrogate Gasoline Number Analyzed Recovery (°/a} (mg/kg) Method Blank 10/20/14 91 nd FW-SW1:12 10/20/14 96 nd FW-SW2:10 10/21/14 95 nd FW-SW2:10 Dup 10/20/14 98 nd FW-UST 1-S:14 10/21/14 93 nd FW-UST 1-N:14 10/21/14 97 nd FW-SW3:12 10/21/14 92 nd FW-UST3-N:14 10/21/14 90 nd FW-UST2-N:14 10/20/14 98 nd FW-UST2-S:14 10/20/14 97 nd FW-SW6:10 10/20/14 96 nd FW-UST3-S:14 10/20/14 88 nd FW-SW8:10 10/20/14 91 nd FW-SW8:10 Dup 10/20/14 88 nd Practical Ouantitation Limit 0.02 10 "nd" Indicates not detected at the listed detection limits. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE (Toluene-d8): 65% TO 135% ANALYSES PERFORMED BY: Sherry Chilcutt Page 2 of 7 U%by Environmental, Ac. 4139 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 DEVCO HIGH POINT PROJECT FAX: (360) 352-4154 Environmental Partners, Inc. Email: libbyenv@aol.com Federal Way, Washington Libby Project # L141020-5 Client Project # 64302.3 Specific Aromatic Hydrocarbons by EPA 8260C in Soil Sample Description Method FW-SW1:12 FW-SW2:10 FW-SW2:10 FW-UST1- FW-UST1- Blank Du S:14 N:14 Date Sampled N/A I0/20/14 10/20/14 10/20/14 10/20/14 10/20/14 Date Analyzed PQL 10/20/14 10/20/14 10/21/14 10/20/14 10/21/14 10/21/14 (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mpg) (mpg) Benzene 0.02 nd nd nd nd nd nd Toluene 0.03 nd nd nd nd nd nd Ethylbenzene 0.03 nd nd nd nd nd nd Total Xylenes 0.03 nd nd nd nd nd nd Total Naphthalenes 0.05 nd nd nd nd nd nd Surrogate Recovery Dibromofluoromethane 114 92 113 94 115 113 1,2-Dichloroethane-d4 128 104 ill 105 127 116 Toluene-d8 91 96 95 98 93 97 4-Bromofluorobenzene 94 104 101 102 96 96 "nd" Indicates not detected at listed detection limit. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE 65% TO 135% ANALYSES PERFORMED BY: Sherry Chilcutt Page 3 of 7 ,Libby Environmental, tnc. 4139 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 DEVCO HIGH POINT PROJECT FAX: (360) 352-4154 Environmental Partners, Inc. Email: libbyenv@aol.com Federal Way, Washington Libby Project # L141020-5 Client Project # 64302.3 Specific Aromatic Hydrocarbons by EPA 8260C in Soil Sample Description FW- FW-UST3- FW-UST2- FW-UST2- FW-SW6:10 FW-UST3- SW3:12 N:14 N:14 S:14 S:14 Date Sampled 10/20/14 10/20/14 10/20/14 10/20/14 10/20/14 10/20/14 Date Analyzed PQL 10/21/14 10/21/14 10/20/14 10/20/14 10/20/14 10/20/14 (mg/kg) (mpg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (myAg) Benzene 0.02 nd nd nd nd nd nd Toluene 0.02 nd nd nd nd nd nd Ethylbenzene 0.03 nd nd nd nd nd nd Total Xylenes 0.03 nd nd nd nd nd nd Total Naphthalenes 0.03 nd nd nd nd nd nd Surrogate Recovery Dibromofluoromethane 112 107 110 105 105 96 1,2-Dichloroethane-d4 129 117 124 107 107 94 Toluene-d8 92 90 98 97 96 88 4-Bromofluorobenzene 101 97 96 95 96 101 "nd" Indicates not detected at listed detection limit. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE 65% TO 135% ANALYSES PERFORMED BY: Sherry Chilcutt Page 4 of 7 ,Libby Environmental, nc. DEVCO HIGH POINT PROJECT Environmental Partners, Inc. Federal Way, Washington Libby Project # L141020-5 Client Project # 64302.3 Specific Aromatic Hydrocarbons by EPA 8260C in Soil 4139 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 FAX: (360) 352-4154 Email: libbyenv@aol.com Sample Description FW- FW-SW8:10 SW8:10 Dup Date Sampled 10/20/14 10/20/14 Date Analyzed PQL 10/20/14 10/20/14 (mg/kg) (mg/kg) (mg/kg) Benzene 0.02 nd nd Toluene 0.02 nd nd Ethylbenzene 0.03 nd nd Total Xylenes 0.03 nd nd Total Naphthalenes 0.03 nd nd Surrogate Recovery Dibromofluoromethane 112 92 1,2-Dichloroethane-d4 123 112 Toluene-d8 91 88 4-Bromofluorobenzene 94 96 "nd" Indicates not detected at listed detection limit. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE 65% TO 135% ANALYSES PERFORMED BY: Sherry Chilcutt Page 5 of 7 `U'Lbliy Environmental, ine. 4139 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 DEVCO HIGH POINT PROJECT FAX: (360) 352-4154 Environmental Partners, Inc. Email: libbyenv@aol.com Federal Way, Washington Libby Project # L141020-5 Client Project # 64302.3 QA/QC Data - EPA 8260C Analyses Sample Identification: FW-DP1:3 Matrix Spike Matrix Spike Duplicate RPD Spiked Measured Spike Spiked Measured Spike Cone. Cone. Recovery Cone. Cone. Recovery (mg/kg) (mg/kg) (%) m /k (mg/kg) (%) Benzene 0.5 0.66 132 0.5 0.67 134 I 1.5 Toluene 0.5 0.60 120 0.5 0.61 122 l 1.7 Surrogate Recovery Dibromofluoromethane 91 89 1,2-Dichloroethane-d4 101 95 Toluene-d8 97 94 4-Bromofluorobenzene 105 101 Benzene Toluene Laboratory Control Sample Spiked Measured Spike Cone. Cone. Recovery (mg/kg) (mg/kg) (%) 0.5 0.48 96 0.5 0.47 94 Surrogate Recovery Dibromofluoromethane 112 1,2-Dichloroethane-d4 120 Toluene-d8 91 4-Bromofluorobenzene 96 ACCEPTABLE RECOVERY LIMITS FOR MATRIX SPIKES: 65%-135% ACCEPTABLE RPD IS 35% ANALYSES PERFORMED BY: Sherry Chilcutt Page 6 of 7 'Libby Environmental, Inc. DEVCO HIGH POINT PROJECT Environmental Partners, Inc. Federal Way, Washington Libby Project # L141020-5 Client Project # 64302.3 4139 Libby Road NE Olympia, WA 98506 Phone: (360) 352-2110 FAX: (360) 352-4154 Email: libbyenv@aol.com Analyses of Diesel & Oil (NWTPH-Dx/Dx Extended) in Soil Sample Date Surrogate Diesel Oil Number Analyzed Recovery (%) (mg/kg) (mg/kg) Method Blank 10/20/14 95 nd nd FW-DP 1:3 10/20/14 118 659 nd FW-DP2:3 10/20/14 int 1220 nd FW-DP3:3 10/20/14 101 nd nd FW-PP1:3 10/20/14 95 nd nd FW-PP2:3 10/20/14 11 nd nd FW-SW 1:12 10/20/14 101 nd nd FW-SW2:10 10/20/14 70 nd nd FW-USTI-S:14 10/20/14 118 nd nd FW-UST 1-N:14 10/20/14 77 nd nd FW-SW3:12 10/20/14 108 nd nd FW-SW4:12 10/20/14 109 nd nd FW-UST3-N:14 10/20/14 93 nd nd FW-UST3-N:14 Dup 10/20/14 103 nd nd FW-UST2-N:14 10/20/14 97 nd nd FW-UST2-S:14 10/20/14 101 nd nd FW-SW5:10 10/20/14 96 nd nd FW-SW6:10 10/20/14 80 nd nd FW-UST3-S:14 10/20/14 121 nd nd FW-SW7:12 10/20/14 91 nd nd FW-SW8:10 10/20/14 96 nd nd FW-SW8:10 Dup 10/20/14 67 nd nd Practical Quantitation Limit 25 40 "nd" Indicates not detected at the listed detection limits. "int" Indicates that interference prevents determination. ACCEPTABLE RECOVERY LIMITS FOR SURROGATE (2-F Biphenyl): 65% TO 135% ANALYSES PERFORMED BY: Ramses Osorio Page 7 of 7 INITIAL INVESTIGATION FIELD REPORT IVY ERTS Number: 655073 v Parcel #(s): 8682400000 County: King, 0 E PH A T MOENN T T A 0 F FSID #: ECOLOGY CSID#: C ITC wrn MR AT1n 41 Site Name (Name over door): Site Address (including City, State and Zip): Phone/email: Trinidad South, Unit 31 1040 South 320" St Federal Way, WA 98003 Site Contact, Title, Business: Site Contact Address (including City, State and Zip): Phone/email: David Villanueva 1040 South 320"' St, Unit 31 253-839-0917 Federal Way, WA 98003 Site Owner, Title, Business: Site Owner Address (including City, State and Zip): Phone/email: Site Owner Contact, Title, Business: Site Owner Contact Address (including City, State and Zip)- Phone/email: Previous Site Owner(s): Additional Info: Alternate Site Name(s): Additional Info: Latitude (Decimal Lonaitude (Decim INSPECTION INFORMATION Inspection Conducted? Yes ❑ No Date/Time: Photographs taken? Yes ❑ No Samples collected? Yes ❑ No o c/+A11e111104111A1r1r1h1 47.31639 -122.31985 Entry Notice: Announced U Unannounced No Further Action (Check appropriate box below): LIST on Confirmed and Suspected Sites List: El Release or threatened release does not pose a threat ElContaminated No release or threatened release of hazardous material Refer to program/agency (Name: } ❑ Independent Cleanup Action Completed contamination removed) ❑ COMPLAINT (Brief Summary of ERTS Complaint): Leah Boehm reported that oil had seeped up through the floor of Unit 31. She thought the oil could have originated at the former bus barn property adjacent to the east of the Trinidad South condominium property. CURRENT SITE STATUS (Brief Summary of why Site is recommended for Listing or NFA): Based on the limited information available, the black, oily substance observed in Unit 31 was likely Stachybotrys mold rather than oil. [5118115 Initial Investigation Coordinator, Donna Musa, and Section Signatory, Louise Bardy, signed and approved the determination of NFA "no release of hazardous material" for ERTS 655073.1 Investigator: Priscilla Tomlinson Date Submitted: 5/7/2015 OBSERVATIONS Description (If site visit made, please be sure to include the following: site observations, site teatures ana cover. chronology of events, sources/past practices likely responsible for contamination. presence of water supply wells and other potential exposure pathways, etc.): Documents reviewed: • Phase I environmental site assessment and subsurface investigation, 1066 South 320'h Street, Federal Way, Washington 98003. Prepared by Environmental Partners Inc., Issaquah, WA, for DevCo, Inc., Bellevue, WA. August 15, 2013. • Interim action work plan, former Federal Way school district maintenance yard, 1066 South 320"' Street, Federal Way, Washington. Prepared by Environmental Partners Inc., Issaquah, WA, for DevCo, Inc., Bellevue, WA. October 21, 2013. ■ Centers for Disease Control and Prevention web page: Facts about Stachybotrys chartarum and Other Molds. httr)://www.cdc.-govlmold/stachv,htm. Access 3/13/2015. The complaint involved a report of oil seeping up through the floor of Unit 31 in the Trinidad South condominium complex. There was concern that the oil could have originated from the former school bus maintenance facility (bus barn) property directly east of the condominium. Unit 31 is owned by Mr. David Villanueva. I attempted to contact Mr. Villanueva via voice mail and letter mailed to his home address, both with no success. The information reported here is from a phone conversation with Kerry Wade, President of the Trinidad South Homeowners' Association, on March 13, 2015. Several years ago (approximately 2007), a water heater in a unit next to Unit 31 failed, causing water damage in Unit 31. The owner of Unit 31 pulled up the floor to repair the water damage and saw a black, oily substance that returned after he tried to wipe it up. He did not know where the black, oily substance came from. It seems unlikely that the source of the black, oily substance is the bus barn. Soil contamination was reported on the east side of the bus barn property where fueling and maintenance activities occurred. The reported direction of groundwater flow beneath the bus barn is to the south rather than to the west toward Trinidad South. It is not a normal environmental behavior for oil to flow up through concrete; the oil would usually remain below the concrete. The appearance of the black, oily substance after an incident of water damage suggests that it could be mold. Stachybotrys is a greenish -black mold that grows on material with a high cellulose and low nitrogen content (e.g., fiberboard, gypsum board) when there is moisture from water damage. It is likely that the substance observed in Unit 31 was mold rather than chemical contamination. Additional information on mold can be obtained from the King County Department of Health: 0 (206) 263-9566 ■ http:flwww kincicounty.ciovlhealthservices/health/ehs/toxiclindoorAir.ast)x CITY OF Federal Way David Villanueva 1040 S. 320`h St. #31 Federal Way, WA 98003 Dear Mr. Villanueva. CITY HALL 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www. cityoffederalway. cam Jim Ferrell, Mayor The City of Federal Way's Community Development Department is aware- of an open investigation by the State Department of Ecology regarding a possible unknown substance occurring in -your residence. Department of Ecology representative Priscilla Tomlinson has attempted to contact you several times, but as of today she has not yet received a response. Please contact Ms. Tomlinson at 425-649-7135 or ptom461 @u ecy.wa.goy as soon as possible. Alternatively, you may contact me at 253-835-2638 or matt.Herrera@cityoffederalway.com by Friday March 27 and I will assist you in contacting Ms. Tomlinson in order to facilitate an expeditious result to the investigation. Sincer iew Herrera, AICP Senior Planner K:\MattH\Highpoint\Trinidad South Letter.docx a s s o c i a t e d earth sciences i n c c r p o r a t e d Technical Memorandum Page 1 of 2 Date: February 5, 2015 From: I Jon N. Sondergaard, L.G., L.E.G. To: I City of Federal Way Project Manager: �I Jon N. Sondergaard, L.G., L.E.G. I- 33325 8th Avenue South Principal in Charge: Jon N. Sondergaard, L.G., L.E.G. Federal Way, Washington 98003 Project Name: Highpoint Mixed Use Attn: Matthew Herrera Project No: KV140263A Subject: Summary of Site Visits and Review of Performance and Compliance Data Site Visits Associated Earth Sciences, Inc. (AESI) visited the subject site on November 6, November 17, and December 12, 2014 during the performance of remedial activities. On November 6, 2014 we observed remedial activities in Area 1(Former and Existing Underground Storage Tanks [USTs]), on November 17, 2014 we observed remedial activities in Area 2 (Former Used Oil UST) and on December 12, 2014 we observed the site after completion of remedial activities in Area 1, Area 2, and Area 3 (Underground Vehicle Hoists). During our site visits we did not observe significant ground water seepage into the remedial excavations and based on our discussions with Mr. Eric Caddey of Environmental Partners, Inc. (EPI), dewatering of the site was not necessary to achieve the desired limits of excavation. Based on observations made at the time of our site visits and discussions with Mr. Caddey of EPI during our November 6 and November 17, 2015 site visits, in our opinion the work was being performed in general accordance with the Interim Action Work Plan (IAWP) dated October 21, 2013 prepared by EPI and reviewed by AESI. Performance and Compliance Testing AESI recently received and reviewed the following technical memorandum document: "Summary of Remedial Excavation Results, Former Federal Way School District Maintenance Facility, 1066 South 320th Street, Federal Way, Washington" dated January 28, 2015 prepared by EPI for DevCo, Inc. The document describes the remedial actions related to soil removal in Areas 1 through 4 as well as in the vicinity of an oil/water separator discovered southwest of Area 1, sampling and analysis and the installation of infiltration galleries in Area 1 and Area 2 for use in future ground water remediation, if required. EPI collected performance soil samples for analysis throughout the remedial excavations to document contaminant concentrations in the soil. If the performance samples exhibited contaminant concentrations above the Model Toxics Control Act (MTCA) site -specific cleanup levels, additional excavation and removal of soil was performed until compliance was achieved. If performance samples exhibited contaminant concentrations below the MTCA site -specific cleanup levels, they were used as confirmation samples to document that 911 Fifth Avenue - Kirkland, WA 98033 - P 1 425 827-7701 - F 1 425 827-5424 2911 1/2 Hewitt Avenue, Suite 2 - Everett, WA 98201 - P 1 425 259-0522 - F 425 252-3408 1552 Commerce Street Suite 102 - Tacoma, WA 98402 - P 1 253 722-2992 - F 1 253 722-2993 www.aesgeo.com Associated Earth Sciences, Inc. Technical Memorandum cleanup had been achieved. Based upon the results reviewed, soil atthe subject site has been remediated to below the established MTCA site -specific cleanup levels. In our opinion, the soil remediation activities have been performed and completed in general accordance with the IAWP. Comments The following presents our comments and recommendations regarding future site activity and reporting: 1. We recommend that the final report include documentation for disposal of the USTs and weigh tickets for disposal of contaminated soil. 2. The technical memorandum states that ground water monitoring wells will be installed after the completion of surface improvements. What specific surface improvements will be completed prior to monitoring well installation and what is the estimated schedule for completion of these improvements and installation of the wells. The IAWP indicates that the Washington State Department of Ecology (Ecology) will be petitioned for a No Further Action (NFA) determination forthe site upon attainment of cleanup levels atthe points of compliance for all affected media. The reviewed technical memorandum has documented the soil cleanup. For groundwater compliance, how many consecutive quarters of monitoring that exhibit results below the MTCA site -specific cleanup levels will be performed to document compliance. Ecology typically requires four consecutive quarters of compliance to document that an NFA determination is justified. pl WGrxh�� {� 7 5 /tA V Jon N. 5or grgaard JNS/Id KV140263A3 Pro1ects\20140263\KV\WP Project No: KV140263A Page 2 Matt Herrera From: Thom Morin <thomm@epi-wa.com> Sent: Tuesday, February 17, 2015 2:07 PM To: Matt Herrera Cc: Tom Smith; Rob Trivitt; Paul Green; Jack Hunden; Eric Caddey; Tom Neubauer; Tammy Sorensen Sorensen Subject: File #14-101955-00-EN; Third Party Remediation Review; Highpoint Mixed Use Matt, This email is being provided on behalf of DevCo and Heartland in response to your letter of February 13, 2015 to Mr. Paul Green of Azure Green Consultants. Your letter indicated that in advance of receiving further permit approvals on the subject property it was necessary to respond to the three comments contained in the technical memorandum by AESI (Mr. Jon Sondergaard') regarding AESI's review of EPI's "Summary of Remedial Excavation Results, Former Federal Way School District Maintenance Facility." In addition to the three comments, the AESI technical memorandum stated that "Based upon the results reviewed, soil at the subject site has been remedatiion to below the established MTCA site -specific cleanup levels. In our (AESI's) opinion, the soil remediation activities have been performed and completed in general accordance with the IAWP." AESI's comments are provided verbatim below followed by EPI's responses in italic. 1. We [AESI] recommend that the final report include documentation for disposal of the USTs and weigh[t] tickets for disposal of contaminated soil. EPI concurs. Providing that information is standard of care for a final closure report and will be included in the final document t. 2. The technical memorandum states that ground water monitoring wells will be installed after the completion of surface improvements. What specific surface improvements will be completed prior to monitoring well installation and what is the estimated schedule for completion of these improvements and installation of the wells. Wells will be installed after installation of curb and gutter and final paving. This is necessary in order to limit damage to the wells duringfinal grading and to allow the wellheads to be placed at he correct height to avoid creation of a "trip and fall" hazard. The timing of this work will be as soon after final paving as possible, as determined by the overall construction schedule and completion timeframes. 3. The IAWP indicates that the Washington State Department of Ecology (Ecology) will be petitioned for a No Further Action (NFA) determination for the site upon attainment of cleanup levels at the points of compliance for all affected media. The reviewed technical memorandum has documented the soil cleanup. For ground water compliance, how many consecutive quarters of monitoring that exhibit results below the MTCA site - specific cleanup levels will be performed to document compliance. Ecology typically requires four consecutive quarters of compliance to document that an NFA determination is justified. EPI concurs with AESTs final statement. EPI anticipates groundwater monitoring to establish four consecutive quarters of compliance with the selected cleanup levels prior to requesting an NFA determination. That is the standard of care typically required and is expected for this site. EPI understands that with the submittal of this email that all necessary information has been provided to the City of Federal Way in support of the further permit approvals for the ongoing development of the property. Please let us know if any additional information is required. Thom Thomas C. Morin, L.G. - President/Principal ENVIRONMENTAL PARTNERS, INC. 1180 NW Maple Street, Suite 310, Issaquah, Washington 98027 425.395.0030 (direct) 1206.954.6957 (cell) I thomm@epi-wa.com CITY OF Federal February 13, 2015 Paul Green Azure Green Consultants 409 East Pioneer Puyallup, WA 98372 Way RE: File #14-101955-00-EN; THIRD PARTY REMEDIATION REVIEW Highpoint Mixed Use,1066 South 320th Street, Federal Way Dear Mr. Green: CITY HALL 33325 8th Avenue South Federal Way, WA 98003-6325 (253) 835-7000 www. cityoffederalway.. com Jim Ferrell, Mayor The City's environmental consultant, Jon Sondergaard of Associated Earth Sciences Incorporated, has reviewed soil remediation work that has occurred on the Highpoint Mixed Use site as conditioned by the application's DNS. Mr. Sondergaard's enclosed technical memorandum provides his assessment from three site visits to the subject property and document reviews of the Interim Action Work Plan and Summary of Remediation Excavation Results. As cited in Mr. Sondergaard's technical memorandum, the soil on the subject property has been remediated to below MTCA site specific cleanup levels and has been performed in general accordance to the Interim Action Work Plan. The memo's three comments on page 2 shall be addressed prior to further permit approvals on the subject property. Please contact me at 253-835-2638 or matt.herrera(2,cityoffederalway.com if you have questions regarding this letter or your development project. oSincerelyera, AICP Senior Planner enc: AESI Technical Memorandum Feb. 5, 2015 c: Kevin Peterson, Engineering Plans Reviewer Scott Sproul, Assistant Building Official Doc. I.D. 67973 I-TED Dustin Granroth 1 2017 From: Steve Behrens CfTY CF F y AL WAX N7 Sent: Tuesday, April 11, 2017 10:57 AM �, MUN� To: Jim Harris Cc: Scott Matthews; Stephen Sullivan; Dustin Granroth Subject: FW: Update - Federal Way Highpoint Attachments: High Point 2017 Analytical.pdf; High Point Well Survey.PDF Per your request. From: Eric Caddey jmailto:ericc@epi-wa.com] Sent: Tuesday, April 11, 2017 10:54 AM To: Steve Behrens <steve.behrens heartlandwa.com> Subject: Update - Federal Way Highpoint Steve, Per your request, EPI has prepared this updated of the remedial activities at the Federal Way High Point project, located at 1066 South 320th Street. EPI recently installed five groundwater monitoring wells to monitor for residual gasoline/diesel/oil impacts that might be present from the former bus maintenance building USTs. MW-1 was installed in the former gasoline UST excavation, and MW-5 was installed in the former used oil excavation. MW-3 and MW-4 were installed in the assumed down -gradient groundwater flow direction from the excavations. Per Ecology requirements, MW-2 was installed in the up -gradient from the excavations. I have attached a well location map surveyed by Pace Engineers. EPI has collected the first round of groundwater sampling from all five of the groundwater monitoring wells. The concentrations for petroleum hydrocarbons in all five groundwater samples were less than laboratory detection limits (non -detect). This is the first of four quarters of groundwater sampling required by the Department of Ecology. If we can continue to obtain non -detects, for four more quarters, then we will be able to petition the Department of Ecology for a No Further Action (NFA) determination. Soil samples were also collected from the borings for the wells and analyzed for petroleum impacts. The concentrations of contaminants in the soils were non -detect for all soil samples. These results confirm EPI's findings that petroleum impacted soils with concentrations greater than the MTCA Method A Soil Remediation levels have been excavated and removed from the site. The soil excavation activities conducted in 2014 are documented in EPI's Technical Memorandum dated January 28, 2015. All of the drums of soil cuttings and purge water from the recent drilling and sampling have been removed from the site and properly disposed. I have attached the chain of custodies and laboratory results for both the soil and groundwater samples. The soils were analyzed by Friedman and Bruya, Inc., and the groundwater samples were analyzed by Libby Environmental, Inc. The next round of quarterly groundwater sampling is scheduled for June 2017. If you have any questions, feel free to contact us at anytime. Eric Caddey, L.G. - Senior Geologist ENVIRONMENTAL PARTNERS, INC. 1180 NW Maple Street, Suite 310 Issaquah, Washington 98027 425.395.0032 (direct)1425.281.3629 (cell) I ericr oi-wo.c9m Matt Herrera From: Jon N. Sondergaard <jsondergaard@aesgeo.com> Sent: Thursday, November 06, 2014 11:42 AM To: Matt Herrera Subject: RE: High Point Schedule Matt I visited the site this morning and talked with Eric Caddy and Kyle Crawford. I observed the work they have done so far which is remove the gasoline tanks and start the remedial excavation around those tanks and the adjacent pump islands. We talked about their upcoming schedule and how they were going to proceed with the remediation. I have asked Eric to keep in communication with me regarding their progress and I plan on returning to the site late next week or early the following week. They should have their disposal approvals this week and will begin hauling stockpile contaminated soil from the site likely on Monday. We discussed the need to maintain tight covers on stockpiled soil so that odor would not be an issue. We also discussed the containment and disposal of storm water that has accumulated in the bottom of the excavation. I have asked Eric if he could send the their confirmation test results and sample locations as they proceed through the remediation. He was going to check with his client on this. At this point I have no issues with them proceeding with their plan. They don't work on Fridays so I think they would like to start back up on Monday, 11/10/14. Jon N. Sondergaard L.G., L.E.G. Senior Principal Geologist and Engineering Geologist a s s o o i� e iJ earth sciences 911 50 Avenue l Kirkland, Washington 98033 C 1 425-766-6590 O 1 425-827-7701 F 1 425-827-5424 This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited From: Matt Herrera [mailto:Matt.Herrera@cityoffederalway.com] Sent: Wednesday, November 05, 2014 11:42 AM To:'Tom Smith'; Eric Caddey; Alan Park; Kyle Crawford (kcrawford@3kingsinc.com) Cc: Paul Green (Paul@mailagc.com); Bill McCollum; Kevin Peterson; Jon N. Sondergaard Subject: RE: High Point Schedule Tom and et al Our third party reviewer Jon Sondergaard from Associated Earth Sciences will be onsite tomorrow at 10am. No work on the soil excavation/remediation may resume until he has inspected the site. As a condition of the SEPA determination, Jon is scoped to visit the site three times during soil remediation process. Eric — Jon will speak with you regarding the remaining two site visits during the remediation process. Please be onsite at 10am to meet him. Please contact me if you have any questions at 253.835.2638 or matt.herrera@citvoffederalway.com Matt Herrera, AICP — Senior Planner Community Development 33325 8th Avenue South Federal Way, WA 98003 253.835.2638 (p) / 253.835.2609 (fl Matt . HerreraO,ci tyoffederalway. coin From: Tom Smith [mailto:tom.smitit devcoapts.coml Sent: Wednesday, November 05, 2014 11:21 AM To: Eric Caddey; Alan Park; Kyle Crawford (kcrawFord@3kingsinc.com) Cc: Matt Herrera Subject: RE: High Point Schedule Importance: High Eric, Alan and all involved with Remediation. We have been directed to immediately stop all below grade remediation work at the High Point project until the City of Federal Way can have their third party inspector go to and assess the site. PLEASE CONFIRM Thanks, Tom Smith Project Manager Heartland Construction 10900 NE 8th St., Ste. 1200, Bellevue WA 98004 425.233.6440 P 1425.453.9566 F Quality Counts www.devcoa ts.com From: Eric Caddey FmaiIto:ericc@)er)i-wa.com Sent: Wednesday, November 05, 2014 10:56 AM To: Matt Herrera Cc: Tom Smith; Alan Park Subject: Re: High Point Schedule Matt, The excavating is line item 1- " load excavated" Eric Eric L. Caddey, L.G. Senior Geologist Environmental Partners, Inc. 425-281-3629 On Nov 5, 2014, at 10:39 AM, "Matt Herrera" <Matt.Herrera(o)cityoffederalway.com> wrote: Eric, I'm not seeing where on the schedule the soil remediation is taking place. This looks like the building demo work. My intention was that no excavation/remediation work begin until our third party looked at the schedule and determined when it was appropriate to schedule the site visit. Matt Herrera, AICP — Senior Planner Communit-= Development 33325 8th Avenue South Federal Way, WA 98003 253.835.2638 (p) / 253.835.2609 (fl Matt. Herrer rr,�cityoffederalwa, From: Eric Caddey rma€lto:er€cc0epi-wa.com] Sent: Wednesday, November 05, 2014 6:56 AM To: Matt Herrera Cc: Tom Smith Subject: High Point Schedule Matt, Nor sure if you got this, but this is the current schedule for remediation from 3 Kings. We started excavating yesterday. Thanks, Eric Eric Caddey, L.G. - Senior Geologist ENVIRONMENTAL PARTNERS, INC. 1180 NW Maple Street, Suite 310 Issaquah, Washington 98027 425.395.0032 (direct) 1425.281.3629 (cell) I ericcCa)epi-wa.com CITY of CITY HALL 33325 8th Avenue South Federal Way Federal Way, WA 98003-6325 . (253) 835-7000 www. cityofiederalway.. com September 9, 2014 Azure Green Consultants Attn: Paul Green 409 East Pioneer, Suite A Puyallup, WA 98372 Re: AUTHORIZATION TO PROCEED, On -Site Soils Remediation Work. File #14-101955-000-00-EN, HIGHPOINT MIXED USE 1066 S 320th St Dear Mr. Green: The project referenced above has been reviewed for consistency with Title 19 of the Federal Way City Code and other standards, policies and regulations of the Department of Public Works. All applicable fees must be paid and a Certificate of Insurance from the contractor, naming the City of Federal Way as an additional insured, must be submitted prior to commencement of any work. The plans for the work referenced above are hereby conditionally approved. The site remediation work may commence when the conditions of this letter have been fulfilled. Prior to starting work, a pre -construction conference with Public Works must be held. To schedule a pre -construction conference, call Kevin Peterson, Engineering Plans Reviewer at (253) 835-2734. A minimum of three working days advance notice is required to schedule the pre - construction meeting. The developer's on -site construction superintendent must attend this meeting in order to receive the approved plans. ➢ This approval is for the on -site soils remediation only. Clearing, grading, and excavation work is limited to those areas of the site where the soils remediation is to occur, and includes the areas necessary to install temporary erosion control measures. No additional clearing and/or grading is allowed under this approval. ➢ All soils remediation work (area preparation, excavation, soils handling, dewatering, monitoring, etc), shall be per the requirements outlined in the Interim Action Work Plan prepared by Environmental Partners, Inc. ➢ Dust control shall be per the plan outlined in the document prepared by 3 Kings Environmental, Inc. ➢ Separate permits are required for removal of existing underground storage tanks (UST's). This permit is obtained and processed through South King Fire and Rescue. ➢ Separate permits are required for demolition of existing buildings. Demolition permits are available through the City's Building Department. Additional items that may be required prior to starting construction or final project approval are as follows: 1. All utility agencies have been notified at least two working days prior to any excavation (Call Before You Dig: 1-800-424-5555). 2. The applicant must contact Lakehaven Utility District any for water and sewer requirements and/or permits. 3. Provide copies to the City of any documentation that indicates that all contaminated soils have been properly removed/remediated and that groundwater monitoring wells/galleries have been installed. If you have any questions or concerns regarding this letter, please call Kevin Peterson at (253) 835-2734. Sincerely, William Ap eto , E Interim Deputy Public Works Director KM/jo cc: Jack Hunden, DevCo, Inc. 11100 Main St, Suite 301, Bellevue, WA 98004 Gordon Goodsell, South King Fire and Rescue Matt Herrera, Senior Planner Project File(kp) Day File CITY OF Federal Way AUG 2 9 2014 CITY OF FEDERAL WAY CDS CITY OF FEDERAL WAY GEOTECHNICAL CONSULTANT AUTHORIZATION FORM (ADDENDUM) Date: August 28, 2014 Consultant: Mr. Jon Sondergaard Associated Earth Sciences, Inc. 911 5th Avenue Kirkland, WA 98033 Project: Highpoint Mixed Use — Grading (Remediation Work) Project Location: 1066 South 320"' Street, Federal Way, WA 98003 City File No.: 14-101955-EN Applicant Contact: Paul Green Azure Green Consultants 409 E Pioneer Puyallup, WA 98371 253.770-3144 City Staff Contact: Matthew Herrera, Senior Planner — 253.835.2638 Documents to be Provided: Dust Control Plan prepared by 3 Kings Environmental, Inc Task Scope: As an addendum to the May 9, 2014, scope of work, the city requests third party review services of the dust control plan as a component of the remediation work to be completed on the subject property. The city's Hearing Examiner has modified the land use permit to require the following condition: Prior to the issuance of a grading pernzitfor rer►rediation, the applicant shall prepare a dust control plan that ensures that contaminated dust will not adversely affect neighboring properties during remediation of the propero). The plan shall be subject to third party review funded by the applicant. • Review the dust control plan for compliance with the Hearing Examiner's condition. • Provide a written response identifying whether the plan complies with the Hearing Examiner's condition or identify items that need to be addressed prior to issuance. Doc. I.D. Task Schedule: Provide task cost estimate ASAP. Task Cost: Not to exceed $500.00,, without a prior written amendment to this Task Authorization addendum. Acceptance: ,4s1,otL- ,Teo AFti (Applicant) Doc. I.D. Pros 7-41 S la9 Technical Memorandum Date: June 12, 2014 City of Federal Way To: 33325 8th Avenue South Federal Way, WA 980003 Attn: Matthew Herrera Project Jon Sondergaard Manager a s s o c i a t e d earth sciences i n c o r P o r a t e d DRAFT Principal in Charge Jon Sondergaard Project Name: I Highpoint Mixed Use Project No: K140263A Subject: Review of Environmental Assessment and Action Plan Qocuments This technical memorandum -is based on our review of the following documents: Page 1 of 4 1. Phase I Environmental Site Assessment and Subsurface Investigation, Former Federal Way School District Maintenance Yard,1066 South 320th Street, Federal Way, Washington 980003 prepared for DevCo, Inc. by Environmental Partners, Inc. dated August 15, 2013 2. Interim Action Work Plan, Former Federal Way School District Maintenance Yard, 1066 South 320th Street, Federal Way, Washington 980003 prepared for DevCo, Inc. by Environmental Partners, Inc., dated October 31, 2013. 3. Sheets G1 through G4, prepared by Azure Green Consultants dated March 10, 2014. Phase I ESA and Subsurface Investigation The Phase I ESA identified the following recognized environmental conditions (REC) at the subject site: Documented releases from the former 1,000 gallon waste oil UST located at the northwest cornerof the maintenance building. • Documented releases of petroleum products from the former 1,700 gallon UST and 1,000gallon UST located on the east side of the maintenance building. ® The presence of a current gasoline and diesel fueling system that consists of three 12,000 gallon USTs, product piping and dispensers s The presence of a waste oil AST with visible staining of surrounding surface soils. Oil leaking from two air compressors located outside of the east side of the maintenance building. • The presence of two undocumented ground water monitoring wells in the vicinity of the maintenance building. ® Apparent oil stained soil underneath a canopy located in the northeast corner of the subject property. Kirkland • 911 Fifth Avenue • Kirkland, WA 98033 • P 1 (425) 827-7701 • F 1 (425) 827-5424 Everett • 2911 112 Hewitt Avenue, Suite 2 • Everett, WA 98201 • P 1 (425) 259-0522 • F 1 (425) 252-3408 Tacoma •1552 Commerce Street Suite 102 • Tacoma, WA 98402 • P 1 (253) 722-2992 • F 1 (253) 722-2993 www.aesgeo.com DRAFT Associated Earth Sciences, Inc. Technical Memorandum The storage of pesticides in the southwest corner of the warehouse building. Hydraulic hoists with below grade reservoirs in the maintenance building. These RECS resulted in eleven identified data gaps that were investigated by completing sampling and analyses of soil, groundwater and gauze wipe samples for the various contaminants of concern. Based on this sampling and analysis, the following was determined regarding documented contamination at the property: In the former waste oil UST area soil contaminated with gasoline and heavy oil the tank and likely beneath the maintenance building to a maximum depth o 25 feet. Also ground water at a depth of 7 to 16 feet below the ground surf (southwest) of the former waste oil tank is contaminated with diesel and oil extent of soil contamination has been identified as has t contamination Iftend lateral around approximately 20 to and downgradient e lateral and vertical extent of ground water Wf L ,-t•r fS -►rb - I-,cFWr4 r 2. In the former UST area soil contaminated ith gasoline, ethylbenzene, toluene and xylenes extends laterally around the former tank location and likely beneath the maintenance building to a depth between 10 and 20 feet below the ground surface. Also groundwater at a depth of 12 to 21 feet below the ground surface in the vicinity of the former 1,700 and 1,000 gallon USTs is contaminated with gasoline, diesel and benzene. While the maximum lateral and vertical extent of soil / contamination is determined, in our opinion, the lateral extent of groundwater contamination downgradient to the southwest has not been documented. 3. Soil and groundwater contamination in the vicinity of the hoists was not determined due to access limitations. i e C�e�,� r � ���� -a w•�a�e�.w%�t�a� 4. In the former canopy and drum storage area, soil contaminated with gasoline, diesel, BTEX, PCE and naphthalene was documented at a depth of 2 feetwithin an obviously stained area, with the staining likely defining the approximate limits of contamination. The contamination extends to a depth of between 2 and 5 feet below the ground surface. Groundwater at a depth of 15 feet below the ground surface was not contaminated. The vertical and lateral extent ofseil conta 'Ti as been approximately determined. �� ��' s LC$'A�v L'�w�'+'+ ID Is �� �aF <tc,n r-adt The Environmental Partners, Inc. (EPI) 2013 assessment and char@ct rization report also includes data from previous environmental characterization work performed by Earth Solutions Northwest (ESMW) in 2013 and EHS-International (EHSI) in 2012. The assessment data identifies two main areas of contamination at reg the subject property: 1) the area around the former maintenance buildings (four separate sources of contamination) and; 2) a smaller area centered around the former canopy and drum storage area. In our opinion, this data sufficiently characterizes the vertical and lateral extent of soil and groundwater contamination. Interim Action Work Plan The Interim Action Work Plan (IAWP) provides a summary of the previous site characterization work, identification of contaminants of concern (COC) and clean action levels (CULs) and details of the proposed Project No: KV140263A Page 2 ? l� D'RA"5T Associated Earth Sciences, Inc. Technical Memorandum rem action. Based on the identifiable extent of contamination and the low ground water yield it is I;ie�d at the interim remedial action will remediate the site. The following presents a summary of the ified COC and their respective CULs: Table 1. Proposed Site Cleanup Levels COC Soil CUL (mg/kg) Groundwater CUL (ug/L) Gasoline (GRO) 30 40 Diesel (DRO) 2,000 500 Oil (ORO) 2,000 500 Benzene 0.01 2.4 Ethylbenzene 4.11 700 Toluene None Given None Given Xylenes 0.446 310 Naphthalene 1.5 160 Tetra chloroethene (PCE) 0.05 Not Applicable The Site, which is defined by MTCA as extending to the limits of contamination, is divided into four subareas corresponding to the identified and potential sources (Area 1 Existing LISTS, Area 2 Former Waste Oil UST, Area 3 Hydraulic Lifts and Area 4 Former Chemical Storage). The proposed means of remediation at Areas 1 through 3 involves dewatering with discharge treatment as necessary, excavation and off -site disposal of contaminated soils and monitored natural attenuation of contaminants in groundwater. Since groundwater contamination has not been identified in Area 4 and the soil contamination is shallow, remediation of Area 4 only involves excavation with off -site disposal of contaminated soil. The estimated size and volume of the remedial excavations is as follows: Location Area Depth Volume B Area 1 60 ft. by 40 ft. 15 ft. 1,450 cubic yards a Area 2 50 ft. by 30 ft. 22 ft. 1,200 cubic yards ® Area 3 5 ft. by 40 ft. 14 ft. 100 cubic yards e Area 4 4 10 ft. radius 4 ft. 45 cubic yards The estimated total volume of soil to be excavated and transported off -site fordisposal is 2,795 cubic yards. Confirmation soil samples would be collected from the limits of the excavation and analyzed forthe COC to confirm that the removal of contaminated soil is complete. Groundwater removed as part of excavation dewatering activities will be pumped to an 18,000 gallon holding tank to allow settling of solids and additional treatment if required. Additional treatment for volatile organic constitu is would consist of air sparging prior to discharging to the King County Metro J^Akr, sewer system in accord nce with any permit require{�eats. 3 Following the complete n r edial s excavation, a system of slotted pipes and headers would be installed with a Area 1 and Area 2 reme excavations and an estimated 10 groundwater monitoring wells would be stalled around the ' of the remedial excavation in Areas 1 through 3. Groundwater in the wells Date: June 13, 2014 Project No: KV140263A Page 3 h.' ? Associated Earth Sciences, Inc. Technical Memorandum would be monitored at least until analyses indicated that 4 consecutive quarters of results are below the CULs. The installed slotted pipe systems would be utilized, if necessary, to provide additional treatment of groundwater via sparging or chemical injection to obtain the groundwater CULs. Once the soil and groundw CULs hayalcen achieved and confirmed, the developer would apply to Ecology's Voluntary Cleanup Program VCP for the intent of receiving a written No Further Action (NFA) opinion letter from 6ology. The total cost of the remedial action including post action monitoring and VCP submittal is about 650,0 0. Comments Ipp S kevld Based upon our review of the above referenced documents, in our opinion the proposed remedial action is feasible and will likely result in remediation of soil and groundwater at the Site. Thefollowing presents our comments and recomm ations regarding the proposed remedial a tion: C o k s .'s t.' I W/", tvxA v3 p S!- e,--C-f' c-eS •a � 1. Toluene is listed as a potential contaminant of concern,iwas detected in soil (300 mg/kg) at a a� concentration above MTCA Method A levels and is listed as a contaminant of concern fors, groundwater. In our opinion, CULs for toluene in soil and groundwater should be determined C.d4 2. Specific off -site disposal locations should be provided to the City of Federal Way prior to the start of remedial activities. 3. We recommend that the developer provide a proposed detailed schedule of activities that identifies W,¢. ? the start and finish of remedial and monitoring activities, the start and finish of construction -�•� S activitiesan 4. Sheet G4, Grading Plan Phase I should show the limits of the remedial excavations, including temporary cut slopes. c� c, j, Aa- .. � \ a4-,-a \ a Z tau J VJ Project No: KV140263A Page 4 CITY OF k Federal Way Date: CITY OF FEDERAL WAY GEOTECHNICAL CONSULTANT AUTHORIZATION FORM May 9, 2014 Consultant: Mr. Jon Sondergaard Associated Earth Sciences, Inc. 911 5th Avenue Kirkland, WA 98033 Project: Highpoint Mixed Use — Grading (Remediation Work) Project Location: 1066 South 320"' Street, Federal Way, WA 98003 City File No.: 14-101955-EN Applicant Contact: Paul Green Azure Green Consultants 409 E Pioneer Puyallup; WA 98371 253.770-3144 City Staff Contact: Matthew Herrera, Senior Planner — 253.835.2638 Documents to be Provided: ■ Phase I Environmental Site Assessment & Subsurface Investigation • Interim Action Work Plan • Interim Action Cost Estimate • SEPA Determination w/Condition • Site Survey • Proposed Site Plan Task Scope: Prior to the city's issuance of site development permits, the applicant is required to remediate contaminated soils and remove underground storage tanks. The city requests AESI to perform peer review of the proposed cleanup to ensure compliance with MTCA and Washington State underground storage tank removal regulations. Review environmental assessment and action plan documents for adequacy. Provide a memorandum to city identifying compliance issues or data gaps to be addressed prior to remediation grading permit issuance. Three (3) site visits during remediation and tank removal with follow-up memoranda to city. Task Schedule: Task Cost: Acceptance: • Review implemented performance testing with follow-up memoranda to city. • Review final cleanup documentation. • Provide memorandum to city identifying compliance issues or data gaps to be addressed prior to site development permit issuance. Identify whether site has been remediated consistent with the provisions of MTCA and underground storage tank removal. • Meeting with applicant's consultant if necessary. • Additional reviews, meetings and/or task expediting will require supplemental cost and authorization. Provide task cost estimate by May 14, 2013. Not to exceed D 4a without a prior written amendment to this Task Authorization. (Consultant)A, eGlettcw,?� Date (Applicant) 9�21- Date C.\Users\jsondergaard\AppDalalLocaRMicrosoR\Windows\Temporary Intemer Files\Content.Outlook\SXL2\VrIV8\Rcmediation Review Scope of \Vork docx RESUBMITTED SEP 0 5 2014 CITY OF FEDERAL WAY CDS ENVIRONMENTAL • EXCAVATING • DEMO 1066 S. 320tn St Proiect Dust Control Plan Prepared By: 3 Kings Environmental, Inc Prepared For: DEVCO, Inc. 1. Contractors The Contractor for the Abatement, Hazardous Material Removal, Demolition, and UST removal and petroleum -contaminated soil (PCS) excavation is: 3 Kings Environmental, Inc. PO Box 280 Battleground, WA 98604 Office Phone: 360.666.5464 Contact: Alan Park a ark akin sinc,com 360.831.3504 Ron King rkin akin sinc.com 3650.907.4513 3 Kings Environmental will be primarily responsible for implementing this dust control plan 2. Description of Projects Operations The existing site was used as a school district maintenance and operations facility. The property is to be redeveloped into multi family housing. This will require abatement and demolition of structures and removal of underground storage tanks and associated PCS. Abatement activities are scheduled to begin on or around September 15, 2014. Demolition and UST/PCS removal will follow after clearances are provided. 3. Sources of Fugitive Dust a. Asbestos Abatement All asbestos abatement and hazardous materials removals from the structures will be performed within the structures using negative air enclosures and HEPA filters as required. This prevents any asbestos fibers from leaving the work area. Personnel air monitoring and perimeter air monitoring are performed to ensure compliance with all codes and regulations. More specific details can be found in the Asbestos Work Plan submittal. This submittal is currently being prepared by 3 Kings and will be available for review prior to the start of work. b. Demolition Demolition activities involve the use of excavators equipped with specialty attachments to pull the buildings apart, source sort the generated materials, and load the materials for proper disposal. During this work laborers using fire hosed equipped with adjustable fire nozzles will constantly wet the materials as directed by the equipment operators. Debris piles will be wetted at the end of shift to prevent dust from being generated during non work hours. If it is determined that there is the potential that wetting of the piles of material as described may not be adequate to control fugitive dust, then the pile can be covered at the end of shift using 6 mil visqueen and sandbags or weights to secure the covering. Trucks hauling materials off the site will be tarped or covered prior to leaving the site c. UST/PCS removal The excavation and disposal of the USTs and PCS has the potential to generate fugitive dust during excavation, removal, and backfill activities. Again, laborers using hoses equipped with fire nozzles will wet the ground and at the operators' direction will ensure there are no fugitive dust emissions. A 2,500- gallon water truck will also be onsite to wet the driving surfaces so as to minimize any dust from equipment tracking the site of from truck traffic on the site. PCS not directly loaded into trucks for off -site transport may be stockpiled prior to off -site disposal. Stockpiled soils may be misted or wetted to prevent fugitive dusts. Stockpiles remaining on -site for an extended period of time will be covered both for the purpose of preventing potential dust emissions and to prevent run-off in the event of precipitation. 4. Water Supply Water will be supplied from permit with the local water authority. Hydrants or existing services will be identified and properly fitted to deliver water to the hoses and the water truck. Inspection and approvals from the local water authority (if required) will be obtained prior to starting work. 5. Dust Generating Event Response If fugitive dust is noted on the site by the contractor or there are complaints by the local authorities of fugitive dust from operations, 3 Kings shall: • Shut down the operation which is generating the fugitive dust • Implement new controls or work practice to modify the operation so as not to produce fugitive dust • Monitor the changes for effectiveness 6. Water Using water for dust control can cause concerns for erosion control or for silt laden water to leave the site. 3 Kings will follow the Erosion Control plan as prepared for the project and inspect daily to ensure that silt laden water is not leaving the site. All appropriate Best Management Practices will be implemented to prevent this from happening. Care will be used to ensure PCS soils or other soils onsite are merely dampened to prevent fugitive dust and not saturated so as to not allow the spread of contamination or cause a potential erosion control issue. Submitted By: 1 Alan Park Division Manager 3 Kings Environmental, Inc.