We are in the process of ensuring this document is accessible to all audiences. If you need assistance accessing this document, or any material on the EPA East Palestine, Ohio emergency response web pages, please contact the Region 5 Public Information Officer on-call at: R5_EastPalestine@epa.gov May 5, 2023 Josh Peters On-Scene Coordinator U.S. Environmental Protection Agency, Region 5 Superfund and Emergency Management Division 2565 Plymouth Road Ann Arbor, MI 48105 Subject: Data Validation Report E Palestine Site - ER EPA Contract No.: 68HE0519D0005 Task Order/Task Order Line Item No.: 68HE0520F0032/0001EB201 Document Tracking No. 1787 Dear Mr. Peters: Tetra Tech, Inc. (Tetra Tech) is submitting this data validation report for eighteen air samples, including two field duplicates, collected at the E Palestine Site. The samples were collected on April 12 and April 13, 2023 and were analyzed for VOCs by Eurofins Air Toxics. The final laboratory data package was received on April 24, 2023. Analytical data were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan, Superfund Technical Assessment and Response Team (START V), EPA Region 5, Revision 4 (August 2022) and the National Functional Guidelines (NFG) for Organic Superfund Methods Data Review (November 2020). No rejection of results was required for this data package. The results may be used as qualified based on the findings of this validation effort. If you have any questions regarding this data validation report, please call me at (770) 598-1808. Sincerely, Digitally signed by Shanna M Shanna M Vasser Vasser Date: 2023.05.05 11:14:47 -04'00' Shanna Vasser, PE Civil Engineer Enclosure cc: Karl Schultz, Tetra Tech Program Manager Dustin Grams, Tetra Tech Project Manager Mayra ArroyoOrtiz, Tetra Tech Project Document Control Coordinator TO-TOLIN File Tetra Tech, Inc. 1 South Wacker Dr. Suite 3700, Chicago, IL 60606 Tel 312.201.7479 | Fax 312.201.0031 www.tetratech.com TETRATECH ------- ATTACHMENT DATA VALIDATION REPORTS EUROFINS AIR TOXICS REPORT NOS. 2304210,2304250, AND 2304258 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Site Name E Palestine Site - ER TO/TOLIN No. 68HE0520F0032/0001EB201 Document Tracking No. 1787a Laboratory Report No. 2304210 Laboratory Eurofins Air Toxics. LLC. Folsom. CA Analyses Volatile organic compounds (VOCs) by E 'A Method TO-15 in scan and selected ion monitoring (SIM) modes Sam pies and Matrix Nine air samples, including one field duplicate Collection Date(s) 04/12/2023 Field Duplicate Pairs EPD-WA-05-041223/EPD-WA-55-041223 Field QC Blanks None INTRODUCTION This checklist summarizes the Stage 2 A validation performed on the subject laboratory report, in accordance with the U.S. Environmental Protection Agency (EPA) Guidance for Labeling Externally Validated Laboratory Analytical Data for Superfund Use (January 2009). Analytical data were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan, Superfund Technical Assessment and Response Team (START V), EPA Region 5, Revision 4 (August 2022), and the EPA National Functional Guidelines (NFG) for Organic Superfund Methods Data Review (November 2020). OVERALL EVALUATION No rejection of results was required for this data package. The results may be used as qualified based on the findings of this validation effort. Data completeness: Within Criteria Exceedance/Notes N Laboratory control samp 1 e/laboratory control sample duplicate relative percent differences (RPD) were not provided in the Level 11 laboratory report. The lab provided the RPDs separately. No qualifications were applied. Sample preservation, receipt, and holding times: Within Criteria Exceedance/Notes N The canister receipt vacuum/pressures values in the laboratory report were recorded as positive values. The laboratory was contacted and confirmed that the all values are negative, even though the minus signs were missing, and that the laboratory used the follow ing convention for recording Summa canister vacuums and pressures: vacuums are recorded as positive values using the unit of inches of mercury ("Hg), and positive pressures are recorded using the unit pounds per square inch (psi). No qualifications were applied. * TETRA TECH Page 1 of 4 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Method blanks: Within Criteria Exceedance/Notes N TO-15 scan (2304210-1 OA): Carbon disulfide was detected in the method blank at levels between the method detection limit (MDL) and reporting limit (RL). The carbon disulfide results were qualified as not detected (flagged U) at the RL in all samples. Field blanks: Within Criteria Exceedance/Notes NA Surrogates and labeled compounds: Within Criteria Exceedance/Notes Y MS/MSDs: Within Criteria Exceedance/Notes NA Laboratory duplicates: Within Criteria Exceedance/Notes NA Field duplicates: Within Criteria Exceedance/Notes Y TETRA TECH Page 2 of 4 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT LCSs/LCSDs: Within Criteria Exceedance/Notes N TO-15 SIM (2304210-12B and 2304210-12BB): The LCS and LCSD percent recoveries were below QC limits for carbon tetrachloride. The sample results were qualified as estimated with possible low bias (flagged J-) in all samples. Sample dilutions: Within Criteria Exceedance/Notes Y Canister dilution factor for: • EPD-DW-C-041223 was 1.38. • EPD-UW-G-041223 was 1.40. • EPD-WA-01-041223 was 1.50. • EPD-WA-02-041223 was 1.50. • EPD-WA-03-041223 was 1.34. • EPD-WA-04-041223 was 1.46. • EPD-WA-05-041223 was 1.46. • EPD-WA-06-041223 was 1.32. • EPD-WA-55-041223 was 1.40. Re-extraction and reanalysis: Within Criteria Exceedance/Notes NA MDLs/RLs: Within Criteria Exceedance/Notes Y Detections between the MDL and RL were reported and qualified as estimated (flagged J) by the laboratory. H , TETRA TECH Page 3 of 4 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Tentatively identified compounds: Within Criteria Exceedance/Notes Y Tentatively identified compounds (TICs) were detected in all samples. The known TICs were qualified as tentatively identified (flagged NJ). The unknown TICs were qualified as estimated (flagged J). 2-Ethyl-l-hexanol in all samples and butyl acrylate in all samples, except EPD-WA-01-041223, were reported as not detected and qualified as manually searched for. but not found in the sample (flagged U.NF). Other [None]: Within Criteria Exceedance/Notes NA Overall Qualifications: See results summary pages attached for changes to the laboratory qualifiers based upon this validation. The follow ing is a list of qualifiers and definitions that may be used for the validation of this data package: J The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample. J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high. J- The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased low. NF The tentatively identified compound was manually searched for but was not found in the sample. NJ The analysis indicates the presence of an analyte that has been "tentatively identified" and the associated value is the approximate concentration of the analyte in the sample. R The sample result is rejected as unusable due to serious deficiencies in one or more quality control criteria. The analyte may or may not be present in the sample. U The analyte was analyzed for. but was not detected at or above the associated value (reporting limit). UJ The analyte was analyzed for. but was not detected at or above the associated value (reporting limit), which is considered approximate due to deficiencies in one or more qualitv control criteria. TETRA TECH Page 4 of 4 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val EPD-DW-C-041223 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.1 U 0.68 5.1 UG/M3 5.1 U EPD-DW-C-041223 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.68 U 0.16 0.68 UG/M3 0.68 U EPD-DW-C-041223 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.83 U 0.18 0.83 UG/M3 0.83 u EPD-DW-C-041223 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.64 U 0.22 0.64 UG/M3 0.64 u EPD-DW-C-041223 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.68 U 0.21 0.68 UG/M3 0.68 u EPD-DW-C-041223 TO-15 106-99-0 1,3-BUTADIENE 0.3 U 0.12 0.3 UG/M3 0.30 u EPD-DW-C-041223 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.83 U 0.17 0.83 UG/M3 0.83 u EPD-DW-C-041223 TO-15 123-91-1 1,4-DIOXANE 0.5 U 0.27 0.5 UG/M3 0.50 u EPD-DW-C-041223 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.2 U 0.46 3.2 UG/M3 3.2 u EPD-DW-C-041223 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.56 J 0.46 2 UG/M3 0.56 J EPD-DW-C-041223 TO-15 591-78-6 2-HEXANONE 2.8 U 0.57 2.8 UG/M3 2.8 u EPD-DW-C-041223 TO-15 67-63-0 2-PROPANOL 1.2 J 0.36 6.8 UG/M3 1.2 J EPD-DW-C-041223 TO-15 107-05-1 3-CHLOROPROPENE 2.2 U 0.47 2.2 UG/M3 2.2 u EPD-DW-C-041223 TO-15 622-96-8 4-ETHYLTOLUENE 0.68 U 0.16 0.68 UG/M3 0.68 u EPD-DW-C-041223 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.56 U 0.12 0.56 UG/M3 0.56 u EPD-DW-C-041223 TO-15 67-64-1 ACETONE 13 0.93 6.6 UG/M3 13 EPD-DW-C-041223 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.71 U 0.38 0.71 UG/M3 0.71 u EPD-DW-C-041223 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.92 U 0.2 0.92 UG/M3 0.92 u EPD-DW-C-041223 TO-15 75-25-2 BROMOFORM 1.4 U 0.32 1.4 UG/M3 1.4 u EPD-DW-C-041223 TO-15 74-83-9 BROMOMETHANE 27 U 2.1 27 UG/M3 27 u EPD-DW-C-041223 TO-15 75-15-0 CARBON DISULFIDE 0.64 J 0.28 2.1 UG/M3 2.1 u EPD-DW-C-041223 TO-15 108-90-7 CHLOROBENZENE 0.64 U 0.18 0.64 UG/M3 0.64 u EPD-DW-C-041223 TO-15 10061-01- •5 CIS-l,3-DICHLOROPROPENE 0.63 U 0.19 0.63 UG/M3 0.63 u EPD-DW-C-041223 TO-15 98-82-8 CUMENE 0.68 U 0.1 0.68 UG/M3 0.68 u EPD-DW-C-041223 TO-15 110-82-7 CYCLOHEXANE 2.4 U 0.25 2.4 UG/M3 2.4 u EPD-DW-C-041223 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.24 1.2 UG/M3 1.2 u EPD-DW-C-041223 TO-15 64-17-5 ETHANOL 23 1.4 5.2 UG/M3 23 EPD-DW-C-041223 TO-15 75-69-4 FREON 11 0.96 0.12 0.78 UG/M3 0.96 EPD-DW-C-041223 TO-15 76-13-1 FREON 113 0.33 J 0.13 1 UG/M3 0.33 J EPD-DW-C-041223 TO-15 142-82-5 HEPTANE 2.8 U 0.57 2.8 UG/M3 2.8 u EPD-DW-C-041223 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.4 U 0.62 7.4 UG/M3 7.4 u EPD-DW-C-041223 TO-15 110-54-3 HEXANE 2.4 U 0.4 2.4 UG/M3 2.4 u EPD-DW-C-041223 TO-15 75-09-2 METHYLENE CHLORIDE 0.71 J 0.36 0.96 UG/M3 0.71 J EPD-DW-C-041223 TO-15 103-65-1 PROPYLBENZENE 0.68 U 0.25 0.68 UG/M3 0.68 u EPD-DW-C-041223 TO-15 100-42-5 STYRENE 0.14 J 0.11 0.59 UG/M3 0.14 J Page 1 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-DW-C-041223 TO-15 109-99-9 TETRAHYDROFURAN 2 U 1.3 2 UG/M3 2.0 U EPD-DW-C-041223 TO-15 10061-02-f TRANS-l,3-DICHLOROPROPENE 0.63 U 0.17 0.63 UG/M3 0.63 U EPD-DW-C-041223 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-DW-C-041223 TO-15 106-97-8 BUTANE 2 NJ PPBV 2.0 NJ EPD-DW-C-041223 TO-15 78-78-4 BUTANE, 2-METHYL- 1.9 NJ PPBV 1.9 NJ EPD-DW-C-041223 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-DW-C-041223 TO-15 66-25-1 HEXANAL 2 NJ PPBV 2.0 NJ EPD-DW-C-041223 TO-15 75-28-5 ISOBUTANE 0.74 NJ PPBV 0.74 NJ EPD-DW-C-041223 TO-15 124-19-6 NONANAL 6 NJ PPBV 6.0 NJ EPD-DW-C-041223 TO-15 124-13-0 OCTANAL 2 NJ PPBV 2.0 NJ EPD-DW-C-041223 TO-15 109-66-0 PENTANE 4.5 NJ PPBV 4.5 NJ EPD-DW-C-041223 TO-15 NA UNKNOWN TIC 1.9 J PPBV 1.9 J EPD-DW-C-041223 TO-15 NA UNKNOWN TIC 0.91 J PPBV 0.91 J EPD-DW-C-041223 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.02 0.15 UG/M3 0.15 U EPD-DW-C-041223 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.032 0.19 UG/M3 0.19 U EPD-DW-C-041223 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.03 0.15 UG/M3 0.15 U EPD-DW-C-041223 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.014 0.11 UG/M3 0.11 U EPD-DW-C-041223 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.055 U 0.028 0.055 UG/M3 0.055 U EPD-DW-C-041223 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.21 U 0.047 0.21 UG/M3 0.21 U EPD-DW-C-041223 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.069 J 0.022 0.11 UG/M3 0.069 J EPD-DW-C-041223 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.16 U 0.09 0.16 UG/M3 0.16 U EPD-DW-C-041223 TO-15 SIM 71-43-2 BENZENE 0.45 0.043 0.22 UG/M3 0.45 EPD-DW-C-041223 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.37 0.032 0.17 UG/M3 0.37 J- EPD-DW-C-041223 TO-15 SIM 75-00-3 CHLOROETHANE 0.18 U 0.11 0.18 UG/M3 0.18 U EPD-DW-C-041223 TO-15 SIM 67-66-3 CHLOROFORM 0.059 J 0.021 0.13 UG/M3 0.059 J EPD-DW-C-041223 TO-15 SIM 74-87-3 CHLOROMETHANE 0.96 J 0.14 1.4 UG/M3 0.96 J EPD-DW-C-041223 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.024 0.11 UG/M3 0.11 U EPD-DW-C-041223 TO-15 SIM 100-41-4 ETHYL BENZENE 0.084 J 0.0085 0.12 UG/M3 0.084 J EPD-DW-C-041223 TO-15 SIM 76-14-2 FREON 114 0.096 J 0.027 0.19 UG/M3 0.096 J EPD-DW-C-041223 TO-15 SIM 75-71-8 FREON 12 1.8 0.020 0.34 UG/M3 1.8 EPD-DW-C-041223 TO-15 SIM 179601-23 M,P-XYLENE 0.24 0.017 0.24 UG/M3 0.24 EPD-DW-C-041223 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.5 U 0.018 0.50 UG/M3 0.50 U EPD-DW-C-041223 TO-15 SIM 91-20-3 NAPHTHALENE 0.36 U 0.068 0.36 UG/M3 0.36 U EPD-DW-C-041223 TO-15 SIM 95-47-6 O-XYLENE 0.096 J 0.015 0.12 UG/M3 0.096 J EPD-DW-C-041223 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.057 J 0.0072 0.19 UG/M3 0.057 J Page 2 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-DW-C-041223 TO-15 SIM 108-88-3 TOLUENE 4 0.017 0.26 UG/M3 4.0 EPD-DW-C-041223 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 4.3 0.017 0.55 UG/M3 4.3 EPD-DW-C-041223 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.014 J 0.013 0.15 UG/M3 0.014 J EPD-DW-C-041223 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.13 0.025 0.035 UG/M3 0.13 EPD-UW-G-041223 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.2 U 0.68 5.2 UG/M3 5.2 U EPD-UW-G-041223 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.34 J 0.16 0.69 UG/M3 0.34 J EPD-UW-G-041223 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.84 U 0.18 0.84 UG/M3 0.84 U EPD-UW-G-041223 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.65 U 0.23 0.65 UG/M3 0.65 U EPD-UW-G-041223 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.69 U 0.21 0.69 UG/M3 0.69 U EPD-UW-G-041223 TO-15 106-99-0 1,3-BUTADIENE 0.31 U 0.13 0.31 UG/M3 0.31 U EPD-UW-G-041223 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.84 U 0.18 0.84 UG/M3 0.84 U EPD-UW-G-041223 TO-15 123-91-1 1,4-DIOXANE 0.5 U 0.28 0.50 UG/M3 0.50 U EPD-UW-G-041223 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.93 J 0.46 3.3 UG/M3 0.93 J EPD-UW-G-041223 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.59 J 0.46 2.1 UG/M3 0.59 J EPD-UW-G-041223 TO-15 591-78-6 2-HEXANONE 2.9 U 0.58 2.9 UG/M3 2.9 U EPD-UW-G-041223 TO-15 67-63-0 2-PROPANOL 0.56 J 0.37 6.9 UG/M3 0.56 J EPD-UW-G-041223 TO-15 107-05-1 3-CHLOROPROPENE 2.2 U 0.48 2.2 UG/M3 2.2 U EPD-UW-G-041223 TO-15 622-96-8 4-ETHYLTOLUENE 0.31 J 0.16 0.69 UG/M3 0.31 J EPD-UW-G-041223 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.57 U 0.12 0.57 UG/M3 0.57 U EPD-UW-G-041223 TO-15 67-64-1 ACETONE 6.4 J 0.94 6.6 UG/M3 6.4 J EPD-UW-G-041223 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.72 U 0.38 0.72 UG/M3 0.72 U EPD-UW-G-041223 TO-15 75-27-4 BROMODICHLOROMETHANE 0.94 U 0.20 0.94 UG/M3 0.94 U EPD-UW-G-041223 TO-15 75-25-2 BROMOFORM 1.4 U 0.33 1.4 UG/M3 1.4 U EPD-UW-G-041223 TO-15 74-83-9 BROMOMETHANE 27 U 2.1 27 UG/M3 27 U EPD-UW-G-041223 TO-15 75-15-0 CARBON DISULFIDE 0.86 J 0.29 2.2 UG/M3 2.2 U EPD-UW-G-041223 TO-15 108-90-7 CHLOROBENZENE 0.64 U 0.18 0.64 UG/M3 0.64 U EPD-UW-G-041223 TO-15 10061-01- •5 CIS-l,3-DICHLOROPROPENE 0.64 U 0.19 0.64 UG/M3 0.64 U EPD-UW-G-041223 TO-15 98-82-8 CUMENE 0.69 U 0.10 0.69 UG/M3 0.69 U EPD-UW-G-041223 TO-15 110-82-7 CYCLOHEXANE 2.4 U 0.25 2.4 UG/M3 2.4 U EPD-UW-G-041223 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.24 1.2 UG/M3 1.2 U EPD-UW-G-041223 TO-15 64-17-5 ETHANOL 10 1.4 5.3 UG/M3 10 EPD-UW-G-041223 TO-15 75-69-4 FREON 11 1 0.12 0.79 UG/M3 1.0 EPD-UW-G-041223 TO-15 76-13-1 FREON 113 0.54 J 0.13 1.1 UG/M3 0.54 J EPD-UW-G-041223 TO-15 142-82-5 HEPTANE 0.87 J 0.58 2.9 UG/M3 0.87 J Page 3 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-UW-G-041223 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.5 U 0.63 7.5 UG/M3 7.5 U EPD-UW-G-041223 TO-15 110-54-3 HEXANE 1.4 J 0.41 2.5 UG/M3 1.4 J EPD-UW-G-041223 TO-15 75-09-2 METHYLENE CHLORIDE 0.42 J 0.37 0.97 UG/M3 0.42 J EPD-UW-G-041223 TO-15 103-65-1 PROPYLBENZENE 0.69 U 0.25 0.69 UG/M3 0.69 U EPD-UW-G-041223 TO-15 100-42-5 STYRENE 0.6 U 0.11 0.60 UG/M3 0.60 U EPD-UW-G-041223 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 1.3 2.1 UG/M3 2.1 U EPD-UW-G-041223 TO-15 10061-02-f TRANS-l,3-DICHLOROPROPENE 0.64 U 0.17 0.64 UG/M3 0.64 U EPD-UW-G-041223 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-UW-G-041223 TO-15 106-97-8 BUTANE 5.4 NJ PPBV 5.4 NJ EPD-UW-G-041223 TO-15 78-78-4 BUTANE, 2-METHYL- 6.5 NJ PPBV 6.5 NJ EPD-UW-G-041223 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-UW-G-041223 TO-15 96-37-7 CYCLOPENTANE, METHYL- 0.81 NJ PPBV 0.81 NJ EPD-UW-G-041223 TO-15 589-34-4 HEXANE, 3-METHYL- 0.96 NJ PPBV 0.96 NJ EPD-UW-G-041223 TO-15 75-28-5 ISOBUTANE 2.2 NJ PPBV 2.2 NJ EPD-UW-G-041223 TO-15 109-66-0 PENTANE 3.4 NJ PPBV 3.4 NJ EPD-UW-G-041223 TO-15 107-83-5 PENTANE, 2-METHYL- 2.1 NJ PPBV 2.1 NJ EPD-UW-G-041223 TO-15 96-14-0 PENTANE, 3-METHYL- 1.3 NJ PPBV 1.3 NJ EPD-UW-G-041223 TO-15 NA UNKNOWN TIC 1.8 J PPBV 1.8 J EPD-UW-G-041223 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.021 0.15 UG/M3 0.15 U EPD-UW-G-041223 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.032 0.19 UG/M3 0.19 U EPD-UW-G-041223 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.03 0.15 UG/M3 0.15 U EPD-UW-G-041223 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.014 0.11 UG/M3 0.11 U EPD-UW-G-041223 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 U 0.028 0.056 UG/M3 0.056 U EPD-UW-G-041223 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.048 0.22 UG/M3 0.22 U EPD-UW-G-041223 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.073 J 0.022 0.11 UG/M3 0.073 J EPD-UW-G-041223 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.092 0.17 UG/M3 0.17 U EPD-UW-G-041223 TO-15 SIM 71-43-2 BENZENE 0.99 0.043 0.22 UG/M3 0.99 EPD-UW-G-041223 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.37 0.033 0.18 UG/M3 0.37 J- EPD-UW-G-041223 TO-15 SIM 75-00-3 CHLOROETHANE 0.18 U 0.11 0.18 UG/M3 0.18 U EPD-UW-G-041223 TO-15 SIM 67-66-3 CHLOROFORM 0.081 J 0.022 0.14 UG/M3 0.081 J EPD-UW-G-041223 TO-15 SIM 74-87-3 CHLOROMETHANE 0.97 J 0.14 1.4 UG/M3 0.97 J EPD-UW-G-041223 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.024 0.11 UG/M3 0.11 U EPD-UW-G-041223 TO-15 SIM 100-41-4 ETHYL BENZENE 0.37 0.0086 0.12 UG/M3 0.37 EPD-UW-G-041223 TO-15 SIM 76-14-2 FREON 114 0.11 J 0.028 0.20 UG/M3 0.11 J EPD-UW-G-041223 TO-15 SIM 75-71-8 FREON 12 1.9 0.020 0.35 UG/M3 1.9 Page 4 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-UW-G-041223 TO-15 SIM 179601-23 M,P-XYLENE 1.4 0.018 0.24 UG/M3 1.4 EPD-UW-G-041223 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.5 U 0.019 0.50 UG/M3 0.50 U EPD-UW-G-041223 TO-15 SIM 91-20-3 NAPHTHALENE 0.074 J 0.068 0.37 UG/M3 0.074 J EPD-UW-G-041223 TO-15 SIM 95-47-6 O-XYLENE 0.66 0.015 0.12 UG/M3 0.66 EPD-UW-G-041223 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.12 J 0.0073 0.19 UG/M3 0.12 J EPD-UW-G-041223 TO-15 SIM 108-88-3 TOLUENE 3.3 0.018 0.26 UG/M3 3.3 EPD-UW-G-041223 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.56 U 0.017 0.56 UG/M3 0.56 U EPD-UW-G-041223 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.021 J 0.013 0.15 UG/M3 0.021 J EPD-UW-G-041223 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.036 U 0.026 0.036 UG/M3 0.036 U EPD-WA-01-041223 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.6 U 0.73 5.6 UG/M3 5.6 U EPD-WA-01-041223 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.71 J 0.18 0.74 UG/M3 0.71 J EPD-WA-01-041223 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.9 U 0.20 0.90 UG/M3 0.90 U EPD-WA-01-041223 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.69 U 0.24 0.69 UG/M3 0.69 U EPD-WA-01-041223 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.74 U 0.23 0.74 UG/M3 0.74 U EPD-WA-01-041223 TO-15 106-99-0 1,3-BUTADIENE 0.33 U 0.14 0.33 UG/M3 0.33 U EPD-WA-01-041223 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.9 U 0.19 0.90 UG/M3 0.90 U EPD-WA-01-041223 TO-15 123-91-1 1,4-DIOXANE 0.54 U 0.30 0.54 UG/M3 0.54 U EPD-WA-01-041223 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 1.2 J 0.50 3.5 UG/M3 1.2 J EPD-WA-01-041223 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.92 J 0.50 2.2 UG/M3 0.92 J EPD-WA-01-041223 TO-15 591-78-6 2-HEXANONE 3.1 U 0.62 3.1 UG/M3 3.1 U EPD-WA-01-041223 TO-15 67-63-0 2-PROPANOL 7.4 U 0.40 7.4 UG/M3 7.4 U EPD-WA-01-041223 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.51 2.3 UG/M3 2.3 U EPD-WA-01-041223 TO-15 622-96-8 4-ETHYLTOLUENE 0.8 0.17 0.74 UG/M3 0.80 EPD-WA-01-041223 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.61 U 0.13 0.61 UG/M3 0.61 U EPD-WA-01-041223 TO-15 67-64-1 ACETONE 11 1.0 7.1 UG/M3 11 EPD-WA-01-041223 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.78 U 0.41 0.78 UG/M3 0.78 U EPD-WA-01-041223 TO-15 75-27-4 BROMODICHLOROMETHANE 1 U 0.21 1.0 UG/M3 1.0 U EPD-WA-01-041223 TO-15 75-25-2 BROMOFORM 1.6 U 0.35 1.6 UG/M3 1.6 U EPD-WA-01-041223 TO-15 74-83-9 BROMOMETHANE 29 U 2.2 29 UG/M3 29 U EPD-WA-01-041223 TO-15 75-15-0 CARBON DISULFIDE 0.42 J 0.31 2.3 UG/M3 2.3 U EPD-WA-01-041223 TO-15 108-90-7 CHLOROBENZENE 0.69 U 0.20 0.69 UG/M3 0.69 U EPD-WA-01-041223 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.68 U 0.21 0.68 UG/M3 0.68 U EPD-WA-01-041223 TO-15 98-82-8 CUMENE 0.74 U 0.11 0.74 UG/M3 0.74 U EPD-WA-01-041223 TO-15 110-82-7 CYCLOHEXANE 2.6 U 0.27 2.6 UG/M3 2.6 U Page 5 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_C EPD-WA-01-041223 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.26 1.3 UG/M3 1.3 U EPD-WA-01-041223 TO-15 64-17-5 ETHANOL 6.1 1.5 5.6 UG/M3 6.1 EPD-WA-01-041223 TO-15 75-69-4 FREON 11 1 0.13 0.84 UG/M3 1.0 EPD-WA-01-041223 TO-15 76-13-1 FREON 113 0.42 J 0.14 1.1 UG/M3 0.42 J EPD-WA-01-041223 TO-15 142-82-5 HEPTANE 1 J 0.62 3.1 UG/M3 1.0 J EPD-WA-01-041223 TO-15 87-68-3 HEXACHLOROBUTADIENE 8 U 0.67 8.0 UG/M3 8.0 u EPD-WA-01-041223 TO-15 110-54-3 HEXANE 1.8 J 0.44 2.6 UG/M3 1.8 J EPD-WA-01-041223 TO-15 75-09-2 METHYLENE CHLORIDE 0.44 J 0.39 1.0 UG/M3 0.44 J EPD-WA-01-041223 TO-15 103-65-1 PROPYLBENZENE 0.74 U 0.27 0.74 UG/M3 0.74 u EPD-WA-01-041223 TO-15 100-42-5 STYRENE 0.64 U 0.12 0.64 UG/M3 0.64 u EPD-WA-01-041223 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 1.4 2.2 UG/M3 2.2 u EPD-WA-01-041223 TO-15 10061-02-( TRANS-l,3-DICHLOROPROPENE 0.68 U 0.18 0.68 UG/M3 0.68 u EPD-WA-01-041223 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-WA-01-041223 TO-15 141-32-2 2-PROPENOIC ACID, BUTYL ESTER 1 NJ PPBV 1.0 NJ EPD-WA-01-041223 TO-15 106-97-8 BUTANE 19 NJ PPBV 19 NJ EPD-WA-01-041223 TO-15 78-78-4 BUTANE, 2-METHYL- 14 NJ PPBV 14 NJ EPD-WA-01-041223 TO-15 66-25-1 HEXANAL 3.1 NJ PPBV 3.1 NJ EPD-WA-01-041223 TO-15 75-28-5 ISOBUTANE 4.3 NJ PPBV 4.3 NJ EPD-WA-01-041223 TO-15 124-19-6 NONANAL 1.7 NJ PPBV 1.7 NJ EPD-WA-01-041223 TO-15 109-66-0 PENTANE 6.1 NJ PPBV 6.1 NJ EPD-WA-01-041223 TO-15 107-83-5 PENTANE, 2-METHYL- 3.2 NJ PPBV 3.2 NJ EPD-WA-01-041223 TO-15 96-14-0 PENTANE, 3-METHYL- 2.1 NJ PPBV 2.1 NJ EPD-WA-01-041223 TO-15 NA UNKNOWN TIC 3.8 J PPBV 3.8 J EPD-WA-01-041223 TO-15 NA UNKNOWN TIC 2.9 J PPBV 2.9 J EPD-WA-01-041223 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-WA-01-041223 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.035 0.20 UG/M3 0.20 U EPD-WA-01-041223 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.033 0.16 UG/M3 0.16 U EPD-WA-01-041223 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.015 0.12 UG/M3 0.12 U EPD-WA-01-041223 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.030 0.059 UG/M3 0.059 U EPD-WA-01-041223 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.051 0.23 UG/M3 0.23 U EPD-WA-01-041223 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.069 J 0.024 0.12 UG/M3 0.069 J EPD-WA-01-041223 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.098 0.18 UG/M3 0.18 U EPD-WA-01-041223 TO-15 SIM 71-43-2 BENZENE 2.8 0.046 0.24 UG/M3 2.8 EPD-WA-01-041223 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.36 0.035 0.19 UG/M3 0.36 J- EPD-WA-01-041223 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.12 0.20 UG/M3 0.20 U Page 6 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-01-041223 TO-15 SIM 67-66-3 CHLOROFORM 0.073 J 0.023 0.15 UG/M3 0.073 J EPD-WA-01-041223 TO-15 SIM 74-87-3 CHLOROMETHANE 0.95 J 0.15 1.5 UG/M3 0.95 J EPD-WA-01-041223 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.026 0.12 UG/M3 0.12 U EPD-WA-01-041223 TO-15 SIM 100-41-4 ETHYL BENZENE 0.91 0.0092 0.13 UG/M3 0.91 EPD-WA-01-041223 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.030 0.21 UG/M3 0.10 J EPD-WA-01-041223 TO-15 SIM 75-71-8 FREON 12 1.8 0.021 0.37 UG/M3 1.8 EPD-WA-01-041223 TO-15 SIM 179601-23 LU z: LU ! >- X oL 2 2.2 0.019 0.26 UG/M3 2.2 EPD-WA-01-041223 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.54 U 0.020 0.54 UG/M3 0.54 U EPD-WA-01-041223 TO-15 SIM 91-20-3 NAPHTHALENE 0.27 J 0.073 0.39 UG/M3 0.27 J EPD-WA-01-041223 TO-15 SIM 95-47-6 O-XYLENE 0.84 0.016 0.13 UG/M3 0.84 EPD-WA-01-041223 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.12 J 0.0078 0.20 UG/M3 0.12 J EPD-WA-01-041223 TO-15 SIM 108-88-3 TOLUENE 4.8 0.019 0.28 UG/M3 4.8 EPD-WA-01-041223 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 3.9 0.018 0.59 UG/M3 3.9 EPD-WA-01-041223 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.014 0.16 UG/M3 0.16 U EPD-WA-01-041223 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.97 0.028 0.038 UG/M3 0.97 EPD-WA-02-041223 TO-15 120-82-1 1,2,4-TRICHLO RO BENZENE 5.6 U 0.73 5.6 UG/M3 5.6 U EPD-WA-02-041223 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.74 U 0.18 0.74 UG/M3 0.74 U EPD-WA-02-041223 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.9 U 0.20 0.90 UG/M3 0.90 U EPD-WA-02-041223 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.69 U 0.24 0.69 UG/M3 0.69 U EPD-WA-02-041223 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.74 U 0.23 0.74 UG/M3 0.74 U EPD-WA-02-041223 TO-15 106-99-0 1,3-BUTADIENE 0.33 U 0.14 0.33 UG/M3 0.33 U EPD-WA-02-041223 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.9 U 0.19 0.90 UG/M3 0.90 U EPD-WA-02-041223 TO-15 123-91-1 1,4-DIOXANE 0.54 U 0.30 0.54 UG/M3 0.54 U EPD-WA-02-041223 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.5 U 0.50 3.5 UG/M3 3.5 U EPD-WA-02-041223 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.84 J 0.50 2.2 UG/M3 0.84 J EPD-WA-02-041223 TO-15 591-78-6 2-HEXANONE 3.1 U 0.62 3.1 UG/M3 3.1 U EPD-WA-02-041223 TO-15 67-63-0 2-PROPANOL 1.1 J 0.40 7.4 UG/M3 1.1 J EPD-WA-02-041223 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.51 2.3 UG/M3 2.3 U EPD-WA-02-041223 TO-15 622-96-8 4-ETHYLTOLUENE 0.74 U 0.17 0.74 UG/M3 0.74 U EPD-WA-02-041223 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.61 U 0.13 0.61 UG/M3 0.61 U EPD-WA-02-041223 TO-15 67-64-1 ACETONE 11 1.0 7.1 UG/M3 11 EPD-WA-02-041223 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.78 U 0.41 0.78 UG/M3 0.78 U EPD-WA-02-041223 TO-15 75-27-4 BROMODICHLOROM ETHANE 1 U 0.21 1.0 UG/M3 1.0 U EPD-WA-02-041223 TO-15 75-25-2 BROMOFORM 1.6 U 0.35 1.6 UG/M3 1.6 U Page 7 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-02-041223 TO-15 74-83-9 BROMOMETHANE 29 U 2.2 29 UG/M3 29 U EPD-WA-02-041223 TO-15 75-15-0 CARBON DISULFIDE 0.56 J 0.31 2.3 UG/M3 2.3 U EPD-WA-02-041223 TO-15 108-90-7 CHLOROBENZENE 0.69 U 0.20 0.69 UG/M3 0.69 U EPD-WA-02-041223 TO-15 10061-01 •5 CIS-l,3-DICHLOROPROPENE 0.68 U 0.21 0.68 UG/M3 0.68 U EPD-WA-02-041223 TO-15 98-82-8 CUMENE 0.74 U 0.11 0.74 UG/M3 0.74 U EPD-WA-02-041223 TO-15 110-82-7 CYCLOHEXANE 2.6 U 0.27 2.6 UG/M3 2.6 U EPD-WA-02-041223 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.26 1.3 UG/M3 1.3 U EPD-WA-02-041223 TO-15 64-17-5 ETHANOL 2.9 J 1.5 5.6 UG/M3 2.9 J EPD-WA-02-041223 TO-15 75-69-4 FREON 11 1 0.13 0.84 UG/M3 1.0 EPD-WA-02-041223 TO-15 76-13-1 FREON 113 0.41 J 0.14 1.1 UG/M3 0.41 J EPD-WA-02-041223 TO-15 142-82-5 HEPTANE 3.1 U 0.62 3.1 UG/M3 3.1 U EPD-WA-02-041223 TO-15 87-68-3 HEXACHLOROBUTADIENE 8 U 0.67 8.0 UG/M3 8.0 U EPD-WA-02-041223 TO-15 110-54-3 HEXANE 2.6 U 0.44 2.6 UG/M3 2.6 U EPD-WA-02-041223 TO-15 75-09-2 METHYLENE CHLORIDE 1 U 0.39 1.0 UG/M3 1.0 U EPD-WA-02-041223 TO-15 103-65-1 PROPYLBENZENE 0.74 U 0.27 0.74 UG/M3 0.74 U EPD-WA-02-041223 TO-15 100-42-5 STYRENE 0.64 U 0.12 0.64 UG/M3 0.64 U EPD-WA-02-041223 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 1.4 2.2 UG/M3 2.2 U EPD-WA-02-041223 TO-15 10061-02 4 TRANS-l,3-DICHLOROPROPENE 0.68 U 0.18 0.68 UG/M3 0.68 U EPD-WA-02-041223 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-WA-02-041223 TO-15 106-97-8 BUTANE 2.4 NJ PPBV 2.4 NJ EPD-WA-02-041223 TO-15 78-78-4 BUTANE, 2-METHYL- 2 NJ PPBV 2.0 NJ EPD-WA-02-041223 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-WA-02-041223 TO-15 75-28-5 ISOBUTANE 0.96 NJ PPBV 0.96 NJ EPD-WA-02-041223 TO-15 109-66-0 PENTANE 1.2 NJ PPBV 1.2 NJ EPD-WA-02-041223 TO-15 NA UNKNOWN TIC 2.6 J PPBV 2.6 J EPD-WA-02-041223 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-WA-02-041223 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.035 0.20 UG/M3 0.20 U EPD-WA-02-041223 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.033 0.16 UG/M3 0.16 U EPD-WA-02-041223 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.015 0.12 UG/M3 0.12 U EPD-WA-02-041223 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.030 0.059 UG/M3 0.059 U EPD-WA-02-041223 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.051 0.23 UG/M3 0.23 U EPD-WA-02-041223 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.073 J 0.024 0.12 UG/M3 0.073 J EPD-WA-02-041223 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.098 0.18 UG/M3 0.18 U EPD-WA-02-041223 TO-15 SIM 71-43-2 BENZENE 0.7 0.046 0.24 UG/M3 0.70 EPD-WA-02-041223 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.38 0.035 0.19 UG/M3 0.38 J- Page 8 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-02-041223 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.12 0.20 UG/M3 0.20 U EPD-WA-02-041223 TO-15 SIM 67-66-3 CHLOROFORM 0.064 J 0.023 0.15 UG/M3 0.064 J EPD-WA-02-041223 TO-15 SIM 74-87-3 CHLOROMETHANE 1 J 0.15 1.5 UG/M3 1.0 J EPD-WA-02-041223 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.026 0.12 UG/M3 0.12 U EPD-WA-02-041223 TO-15 SIM 100-41-4 ETHYL BENZENE 0.13 0.0092 0.13 UG/M3 0.13 EPD-WA-02-041223 TO-15 SIM 76-14-2 FREON 114 0.099 J 0.03 0.21 UG/M3 0.099 J EPD-WA-02-041223 TO-15 SIM 75-71-8 FREON 12 1.9 0.021 0.37 UG/M3 1.9 EPD-WA-02-041223 TO-15 SIM 179601-23 LU z: LU ! >- X oL 2 0.46 0.019 0.26 UG/M3 0.46 EPD-WA-02-041223 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.54 U 0.02 0.54 UG/M3 0.54 U EPD-WA-02-041223 TO-15 SIM 91-20-3 NAPHTHALENE 0.091 J 0.073 0.39 UG/M3 0.091 J EPD-WA-02-041223 TO-15 SIM 95-47-6 O-XYLENE 0.17 0.016 0.13 UG/M3 0.17 EPD-WA-02-041223 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.17 J 0.0078 0.20 UG/M3 0.17 J EPD-WA-02-041223 TO-15 SIM 108-88-3 TOLUENE 1 0.019 0.28 UG/M3 1.0 EPD-WA-02-041223 TO-15 SIM 156-60-5 TRANS-1,2-DICHLOROETHENE 0.59 U 0.018 0.59 UG/M3 0.59 U EPD-WA-02-041223 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.014 0.16 UG/M3 0.16 U EPD-WA-02-041223 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.2 0.028 0.038 UG/M3 0.20 EPD-WA-03-041223 TO-15 120-82-1 1,2,4-TRICHLO RO BENZENE 5 U 0.66 5.0 UG/M3 5.0 U EPD-WA-03-041223 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.18 J 0.16 0.66 UG/M3 0.18 J EPD-WA-03-041223 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.8 U 0.17 0.80 UG/M3 0.80 U EPD-WA-03-041223 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.62 U 0.22 0.62 UG/M3 0.62 U EPD-WA-03-041223 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.66 U 0.20 0.66 UG/M3 0.66 U EPD-WA-03-041223 TO-15 106-99-0 1,3-BUTADIENE 0.3 U 0.12 0.30 UG/M3 0.30 U EPD-WA-03-041223 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.8 U 0.17 0.80 UG/M3 0.80 U EPD-WA-03-041223 TO-15 123-91-1 1,4-DIOXANE 0.48 U 0.26 0.48 UG/M3 0.48 U EPD-WA-03-041223 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.1 U 0.44 3.1 UG/M3 3.1 U EPD-WA-03-041223 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.96 J 0.44 2.0 UG/M3 0.96 J EPD-WA-03-041223 TO-15 591-78-6 2-HEXANONE 2.7 U 0.56 2.7 UG/M3 2.7 U EPD-WA-03-041223 TO-15 67-63-0 2-PROPANOL 0.99 J 0.35 6.6 UG/M3 0.99 J EPD-WA-03-041223 TO-15 107-05-1 3-CHLOROPROPENE 2.1 U 0.46 2.1 UG/M3 2.1 U EPD-WA-03-041223 TO-15 622-96-8 4-ETHYLTOLUENE 0.17 J 0.16 0.66 UG/M3 0.17 J EPD-WA-03-041223 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.41 J 0.12 0.55 UG/M3 0.41 J EPD-WA-03-041223 TO-15 67-64-1 ACETONE 13 0.90 6.4 UG/M3 13 EPD-WA-03-041223 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.69 U 0.36 0.69 UG/M3 0.69 U EPD-WA-03-041223 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.9 U 0.19 0.90 UG/M3 0.90 U Page 9 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-03-041223 TO-15 75-25-2 BROMOFORM 1.4 U 0.32 1.4 UG/M3 1.4 U EPD-WA-03-041223 TO-15 74-83-9 BROMOMETHANE 26 U 2.0 26 UG/M3 26 U EPD-WA-03-041223 TO-15 75-15-0 CARBON DISULFIDE 0.8 J 0.27 2.1 UG/M3 2.1 U EPD-WA-03-041223 TO-15 108-90-7 CHLOROBENZENE 0.62 U 0.18 0.62 UG/M3 0.62 U EPD-WA-03-041223 TO-15 10061-01- -5 CIS-l,3-DICHLOROPROPENE 0.61 U 0.18 0.61 UG/M3 0.61 U EPD-WA-03-041223 TO-15 98-82-8 CUMENE 0.66 U 0.099 0.66 UG/M3 0.66 U EPD-WA-03-041223 TO-15 110-82-7 CYCLOHEXANE 2.3 U 0.24 2.3 UG/M3 2.3 U EPD-WA-03-041223 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.1 U 0.23 1.1 UG/M3 1.1 U EPD-WA-03-041223 TO-15 64-17-5 ETHANOL 2.9 J 1.4 5.0 UG/M3 2.9 J EPD-WA-03-041223 TO-15 75-69-4 FREON 11 1.1 0.12 0.75 UG/M3 1.1 EPD-WA-03-041223 TO-15 76-13-1 FREON 113 0.48 J 0.13 1.0 UG/M3 0.48 J EPD-WA-03-041223 TO-15 142-82-5 HEPTANE 2.7 U 0.56 2.7 UG/M3 2.7 U EPD-WA-03-041223 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.1 U 0.60 7.1 UG/M3 7.1 U EPD-WA-03-041223 TO-15 110-54-3 HEXANE 0.47 J 0.39 2.4 UG/M3 0.47 J EPD-WA-03-041223 TO-15 75-09-2 METHYLENE CHLORIDE 0.52 J 0.35 0.93 UG/M3 0.52 J EPD-WA-03-041223 TO-15 103-65-1 PROPYLBENZENE 0.66 U 0.24 0.66 UG/M3 0.66 U EPD-WA-03-041223 TO-15 100-42-5 STYRENE 0.57 U 0.11 0.57 UG/M3 0.57 U EPD-WA-03-041223 TO-15 109-99-9 TETRAHYDROFURAN 2 U 1.3 2.0 UG/M3 2.0 U EPD-WA-03-041223 TO-15 10061-02-f TRANS-l,3-DICHLOROPROPENE 0.61 U 0.16 0.61 UG/M3 0.61 U EPD-WA-03-041223 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-WA-03-041223 TO-15 123-72-8 BUTANAL 1.2 NJ PPBV 1.2 NJ EPD-WA-03-041223 TO-15 106-97-8 BUTANE 2.2 NJ PPBV 2.2 NJ EPD-WA-03-041223 TO-15 78-78-4 BUTANE, 2-METHYL- 1.7 NJ PPBV 1.7 NJ EPD-WA-03-041223 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-WA-03-041223 TO-15 69775-79- -> ETHER, HEXYLT-BUTYL 1.3 NJ PPBV 1.3 NJ EPD-WA-03-041223 TO-15 111-71-7 HEPTANAL 1.1 NJ PPBV 1.1 NJ EPD-WA-03-041223 TO-15 66-25-1 HEXANAL 3.5 NJ PPBV 3.5 NJ EPD-WA-03-041223 TO-15 75-28-5 ISOBUTANE 1 NJ PPBV 1.0 NJ EPD-WA-03-041223 TO-15 124-19-6 NONANAL 14 NJ PPBV 14 NJ EPD-WA-03-041223 TO-15 124-13-0 OCTANAL 2.2 NJ PPBV 2.2 NJ EPD-WA-03-041223 TO-15 NA UNKNOWN TIC 2.4 J PPBV 2.4 J EPD-WA-03-041223 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.020 0.15 UG/M3 0.15 U EPD-WA-03-041223 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.18 U 0.031 0.18 UG/M3 0.18 U EPD-WA-03-041223 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.029 0.15 UG/M3 0.15 U EPD-WA-03-041223 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.013 0.11 UG/M3 0.11 U Page 10 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-03-041223 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.053 U 0.027 0.053 UG/M3 0.053 U EPD-WA-03-041223 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.2 U 0.046 0.20 UG/M3 0.20 U EPD-WA-03-041223 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.072 J 0.021 0.11 UG/M3 0.072 J EPD-WA-03-041223 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.16 U 0.088 0.16 UG/M3 0.16 U EPD-WA-03-041223 TO-15 SIM 71-43-2 BENZENE 0.62 0.041 0.21 UG/M3 0.62 EPD-WA-03-041223 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.41 0.031 0.17 UG/M3 0.41 J- EPD-WA-03-041223 TO-15 SIM 75-00-3 CHLOROETHANE 0.18 U 0.11 0.18 UG/M3 0.18 U EPD-WA-03-041223 TO-15 SIM 67-66-3 CHLOROFORM 0.075 J 0.021 0.13 UG/M3 0.075 J EPD-WA-03-041223 TO-15 SIM 74-87-3 CHLOROMETHANE 1 J 0.14 1.4 UG/M3 1.0 J EPD-WA-03-041223 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.023 0.11 UG/M3 0.11 U EPD-WA-03-041223 TO-15 SIM 100-41-4 ETHYL BENZENE 0.13 0.0083 0.12 UG/M3 0.13 EPD-WA-03-041223 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.026 0.19 UG/M3 0.10 J EPD-WA-03-041223 TO-15 SIM 75-71-8 FREON 12 2 0.019 0.33 UG/M3 2.0 EPD-WA-03-041223 TO-15 SIM 179601-23 LU z: LU ! >- X oL 2 0.49 0.017 0.23 UG/M3 0.49 EPD-WA-03-041223 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.48 U 0.018 0.48 UG/M3 0.48 U EPD-WA-03-041223 TO-15 SIM 91-20-3 NAPHTHALENE 0.11 J 0.066 0.35 UG/M3 0.11 J EPD-WA-03-041223 TO-15 SIM 95-47-6 O-XYLENE 0.18 0.014 0.12 UG/M3 0.18 EPD-WA-03-041223 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.1 J 0.007 0.18 UG/M3 0.10 J EPD-WA-03-041223 TO-15 SIM 108-88-3 TOLUENE 1 0.017 0.25 UG/M3 1.0 EPD-WA-03-041223 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.078 J 0.016 0.53 UG/M3 0.078 J EPD-WA-03-041223 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.14 U 0.013 0.14 UG/M3 0.14 U EPD-WA-03-041223 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.063 0.025 0.034 UG/M3 0.063 EPD-WA-04-041223 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 0.72 5.4 UG/M3 5.4 U EPD-WA-04-041223 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.31 J 0.17 0.72 UG/M3 0.31 J EPD-WA-04-041223 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.88 U 0.19 0.88 UG/M3 0.88 U EPD-WA-04-041223 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.67 U 0.24 0.67 UG/M3 0.67 U EPD-WA-04-041223 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.72 U 0.22 0.72 UG/M3 0.72 U EPD-WA-04-041223 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.13 0.32 UG/M3 0.32 U EPD-WA-04-041223 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.88 U 0.18 0.88 UG/M3 0.88 U EPD-WA-04-041223 TO-15 123-91-1 1,4-DIOXANE 0.53 U 0.29 0.53 UG/M3 0.53 U EPD-WA-04-041223 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.62 J 0.48 3.4 UG/M3 0.62 J EPD-WA-04-041223 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.57 J 0.48 2.2 UG/M3 0.57 J EPD-WA-04-041223 TO-15 591-78-6 2-HEXANONE 3 U 0.61 3.0 UG/M3 3.0 U EPD-WA-04-041223 TO-15 67-63-0 2-PROPANOL 7.2 U 0.38 7.2 UG/M3 7.2 U Page 11 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-04-041223 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.50 2.3 UG/M3 2.3 U EPD-WA-04-041223 TO-15 622-96-8 4-ETHYLTOLUENE 0.29 J 0.17 0.72 UG/M3 0.29 J EPD-WA-04-041223 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.6 U 0.13 0.60 UG/M3 0.60 U EPD-WA-04-041223 TO-15 67-64-1 ACETONE 7.5 0.98 6.9 UG/M3 7.5 EPD-WA-04-041223 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.76 U 0.40 0.76 UG/M3 0.76 U EPD-WA-04-041223 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.98 U 0.21 0.98 UG/M3 0.98 U EPD-WA-04-041223 TO-15 75-25-2 BROMOFORM 1.5 U 0.34 1.5 UG/M3 1.5 U EPD-WA-04-041223 TO-15 74-83-9 BROMOMETHANE 28 U 2.2 28 UG/M3 28 U EPD-WA-04-041223 TO-15 75-15-0 CARBON DISULFIDE 0.47 J 0.30 2.3 UG/M3 2.3 U EPD-WA-04-041223 TO-15 108-90-7 CHLOROBENZENE 0.67 U 0.19 0.67 UG/M3 0.67 U EPD-WA-04-041223 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.66 U 0.20 0.66 UG/M3 0.66 U EPD-WA-04-041223 TO-15 98-82-8 CUMENE 0.72 U 0.11 0.72 UG/M3 0.72 U EPD-WA-04-041223 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.26 2.5 UG/M3 2.5 U EPD-WA-04-041223 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.25 1.2 UG/M3 1.2 U EPD-WA-04-041223 TO-15 64-17-5 ETHANOL 4.6 J 1.5 5.5 UG/M3 4.6 J EPD-WA-04-041223 TO-15 75-69-4 FREON 11 1 0.12 0.82 UG/M3 1.0 EPD-WA-04-041223 TO-15 76-13-1 FREON 113 0.4 J 0.14 1.1 UG/M3 0.40 J EPD-WA-04-041223 TO-15 142-82-5 HEPTANE 3 U 0.60 3.0 UG/M3 3.0 U EPD-WA-04-041223 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.8 U 0.65 7.8 UG/M3 7.8 U EPD-WA-04-041223 TO-15 110-54-3 HEXANE 1 J 0.43 2.6 UG/M3 1.0 J EPD-WA-04-041223 TO-15 75-09-2 METHYLENE CHLORIDE 0.55 J 0.38 1.0 UG/M3 0.55 J EPD-WA-04-041223 TO-15 103-65-1 PROPYLBENZENE 0.72 U 0.26 0.72 UG/M3 0.72 U EPD-WA-04-041223 TO-15 100-42-5 STYRENE 0.62 U 0.12 0.62 UG/M3 0.62 U EPD-WA-04-041223 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 1.4 2.2 UG/M3 2.2 U EPD-WA-04-041223 TO-15 10061-02-f TRANS-l,3-DICHLOROPROPENE 0.66 U 0.18 0.66 UG/M3 0.66 U EPD-WA-04-041223 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-WA-04-041223 TO-15 106-97-8 BUTANE 8.1 NJ PPBV 8.1 NJ EPD-WA-04-041223 TO-15 78-78-4 BUTANE, 2-METHYL- 6.7 NJ PPBV 6.7 NJ EPD-WA-04-041223 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-WA-04-041223 TO-15 75-28-5 ISOBUTANE 2.2 NJ PPBV 2.2 NJ EPD-WA-04-041223 TO-15 109-66-0 PENTANE 3.5 NJ PPBV 3.5 NJ EPD-WA-04-041223 TO-15 107-83-5 PENTANE, 2-METHYL- 1.7 NJ PPBV 1.7 NJ EPD-WA-04-041223 TO-15 96-14-0 PENTANE, 3-METHYL- 1.2 NJ PPBV 1.2 NJ EPD-WA-04-041223 TO-15 1066-40-6 SILANOL, TRIMETHYL- 2.1 NJ PPBV 2.1 NJ EPD-WA-04-041223 TO-15 NA UNKNOWN TIC 1.8 J PPBV 1.8 J Page 12 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-04-041223 TO-15 NA UNKNOWN TIC 1.2 J PPBV 1.2 J EPD-WA-04-041223 TO-15 NA UNKNOWN TIC 6.9 J PPBV 6.9 J EPD-WA-04-041223 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-WA-04-041223 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.034 0.20 UG/M3 0.20 U EPD-WA-04-041223 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.032 0.16 UG/M3 0.16 U EPD-WA-04-041223 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.015 0.12 UG/M3 0.12 U EPD-WA-04-041223 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.058 U 0.029 0.058 UG/M3 0.058 U EPD-WA-04-041223 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.05 0.22 UG/M3 0.22 U EPD-WA-04-041223 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.069 J 0.023 0.12 UG/M3 0.069 J EPD-WA-04-041223 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.096 0.18 UG/M3 0.18 U EPD-WA-04-041223 TO-15 SIM 71-43-2 BENZENE 1.6 0.045 0.23 UG/M3 1.6 EPD-WA-04-041223 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.37 0.034 0.18 UG/M3 0.37 J- EPD-WA-04-041223 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.12 0.19 UG/M3 0.19 U EPD-WA-04-041223 TO-15 SIM 67-66-3 CHLOROFORM 0.068 J 0.022 0.14 UG/M3 0.068 J EPD-WA-04-041223 TO-15 SIM 74-87-3 CHLOROMETHANE 0.96 J 0.15 1.5 UG/M3 0.96 J EPD-WA-04-041223 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.025 0.12 UG/M3 0.12 U EPD-WA-04-041223 TO-15 SIM 100-41-4 ETHYL BENZENE 0.24 0.009 0.13 UG/M3 0.24 EPD-WA-04-041223 TO-15 SIM 76-14-2 FREON 114 0.091 J 0.029 0.20 UG/M3 0.091 J EPD-WA-04-041223 TO-15 SIM 75-71-8 FREON 12 1.9 0.021 0.36 UG/M3 1.9 EPD-WA-04-041223 TO-15 SIM 179601-23 M,P-XYLENE 0.84 0.018 0.25 UG/M3 0.84 EPD-WA-04-041223 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.53 U 0.020 0.53 UG/M3 0.53 U EPD-WA-04-041223 TO-15 SIM 91-20-3 NAPHTHALENE 0.11 J 0.071 0.38 UG/M3 0.11 J EPD-WA-04-041223 TO-15 SIM 95-47-6 O-XYLENE 0.34 0.015 0.13 UG/M3 0.34 EPD-WA-04-041223 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.087 J 0.0076 0.20 UG/M3 0.087 J EPD-WA-04-041223 TO-15 SIM 108-88-3 TOLUENE 1.7 0.018 0.28 UG/M3 1.7 EPD-WA-04-041223 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 10 0.018 0.58 UG/M3 10 EPD-WA-04-041223 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.035 J 0.014 0.16 UG/M3 0.035 J EPD-WA-04-041223 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.48 0.027 0.037 UG/M3 0.48 EPD-WA-05-041223 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 0.72 5.4 UG/M3 5.4 U EPD-WA-05-041223 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.25 J 0.17 0.72 UG/M3 0.25 J EPD-WA-05-041223 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.88 U 0.19 0.88 UG/M3 0.88 U EPD-WA-05-041223 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.67 U 0.24 0.67 UG/M3 0.67 U EPD-WA-05-041223 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.72 U 0.22 0.72 UG/M3 0.72 U EPD-WA-05-041223 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.13 0.32 UG/M3 0.32 U Page 13 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-05-041223 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.88 U 0.18 0.88 UG/M3 0.88 U EPD-WA-05-041223 TO-15 123-91-1 1,4-DIOXANE 0.53 U 0.29 0.53 UG/M3 0.53 U EPD-WA-05-041223 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.58 J 0.48 3.4 UG/M3 0.58 J EPD-WA-05-041223 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.64 J 0.48 2.2 UG/M3 0.64 J EPD-WA-05-041223 TO-15 591-78-6 2-HEXANONE 3 U 0.61 3.0 UG/M3 3.0 U EPD-WA-05-041223 TO-15 67-63-0 2-PROPANOL 0.6 J 0.38 7.2 UG/M3 0.6 J EPD-WA-05-041223 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.50 2.3 UG/M3 2.3 U EPD-WA-05-041223 TO-15 622-96-8 4-ETHYLTOLUENE 0.25 J 0.17 0.72 UG/M3 0.25 J EPD-WA-05-041223 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.6 U 0.13 0.60 UG/M3 0.60 U EPD-WA-05-041223 TO-15 67-64-1 ACETONE 7.3 0.98 6.9 UG/M3 7.3 EPD-WA-05-041223 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.76 U 0.40 0.76 UG/M3 0.76 U EPD-WA-05-041223 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.98 U 0.21 0.98 UG/M3 0.98 U EPD-WA-05-041223 TO-15 75-25-2 BROMOFORM 1.5 U 0.34 1.5 UG/M3 1.5 U EPD-WA-05-041223 TO-15 74-83-9 BROMOMETHANE 28 U 2.2 28 UG/M3 28 U EPD-WA-05-041223 TO-15 75-15-0 CARBON DISULFIDE 0.75 J 0.30 2.3 UG/M3 2.3 U EPD-WA-05-041223 TO-15 108-90-7 CHLOROBENZENE 0.67 U 0.19 0.67 UG/M3 0.67 U EPD-WA-05-041223 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.66 U 0.20 0.66 UG/M3 0.66 U EPD-WA-05-041223 TO-15 98-82-8 CUMENE 0.72 U 0.11 0.72 UG/M3 0.72 U EPD-WA-05-041223 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.26 2.5 UG/M3 2.5 U EPD-WA-05-041223 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.25 1.2 UG/M3 1.2 U EPD-WA-05-041223 TO-15 64-17-5 ETHANOL 5.6 1.5 5.5 UG/M3 5.6 EPD-WA-05-041223 TO-15 75-69-4 FREON 11 1.1 0.12 0.82 UG/M3 1.1 EPD-WA-05-041223 TO-15 76-13-1 FREON 113 0.43 J 0.14 1.1 UG/M3 0.43 J EPD-WA-05-041223 TO-15 142-82-5 HEPTANE 3 U 0.60 3.0 UG/M3 3.0 U EPD-WA-05-041223 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.8 U 0.65 7.8 UG/M3 7.8 U EPD-WA-05-041223 TO-15 110-54-3 HEXANE 0.8 J 0.43 2.6 UG/M3 0.80 J EPD-WA-05-041223 TO-15 75-09-2 METHYLENE CHLORIDE 0.5 J 0.38 1.0 UG/M3 0.50 J EPD-WA-05-041223 TO-15 103-65-1 PROPYLBENZENE 0.72 U 0.26 0.72 UG/M3 0.72 U EPD-WA-05-041223 TO-15 100-42-5 STYRENE 0.62 U 0.12 0.62 UG/M3 0.62 U EPD-WA-05-041223 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 1.4 2.2 UG/M3 2.2 U EPD-WA-05-041223 TO-15 10061-02-f TRANS-l,3-DICHLOROPROPENE 0.66 U 0.18 0.66 UG/M3 0.66 U EPD-WA-05-041223 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-WA-05-041223 TO-15 106-97-8 BUTANE 4 NJ PPBV 4.0 NJ EPD-WA-05-041223 TO-15 78-78-4 BUTANE, 2-METHYL- 3.7 NJ PPBV 3.7 NJ EPD-WA-05-041223 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF Page 14 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-05-041223 TO-15 75-28-5 ISOBUTANE 1.7 NJ PPBV 1.7 NJ EPD-WA-05-041223 TO-15 109-66-0 PENTANE 2 NJ PPBV 2.0 NJ EPD-WA-05-041223 TO-15 107-83-5 PENTANE, 2-METHYL- 1.2 NJ PPBV 1.2 NJ EPD-WA-05-041223 TO-15 96-14-0 PENTANE, 3-METHYL- 0.8 NJ PPBV 0.80 NJ EPD-WA-05-041223 TO-15 NA UNKNOWN TIC 1.9 J PPBV 1.9 J EPD-WA-05-041223 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-WA-05-041223 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.034 0.20 UG/M3 0.20 U EPD-WA-05-041223 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.032 0.16 UG/M3 0.16 U EPD-WA-05-041223 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.015 0.12 UG/M3 0.12 U EPD-WA-05-041223 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.058 U 0.029 0.058 UG/M3 0.058 U EPD-WA-05-041223 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.050 0.22 UG/M3 0.22 U EPD-WA-05-041223 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.075 J 0.023 0.12 UG/M3 0.075 J EPD-WA-05-041223 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.096 0.18 UG/M3 0.18 U EPD-WA-05-041223 TO-15 SIM 71-43-2 BENZENE 0.77 0.045 0.23 UG/M3 0.77 EPD-WA-05-041223 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.39 0.034 0.18 UG/M3 0.39 J- EPD-WA-05-041223 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.12 0.19 UG/M3 0.19 U EPD-WA-05-041223 TO-15 SIM 67-66-3 CHLOROFORM 0.08 J 0.022 0.14 UG/M3 0.080 J EPD-WA-05-041223 TO-15 SIM 74-87-3 CHLOROMETHANE 1 J 0.15 1.5 UG/M3 1.0 J EPD-WA-05-041223 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.025 0.12 UG/M3 0.12 U EPD-WA-05-041223 TO-15 SIM 100-41-4 ETHYL BENZENE 0.26 0.009 0.13 UG/M3 0.26 EPD-WA-05-041223 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.029 0.20 UG/M3 0.10 J EPD-WA-05-041223 TO-15 SIM 75-71-8 FREON 12 2 0.021 0.36 UG/M3 2.0 EPD-WA-05-041223 TO-15 SIM 179601-23 M,P-XYLENE 0.96 0.018 0.25 UG/M3 0.96 EPD-WA-05-041223 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.53 U 0.020 0.53 UG/M3 0.53 U EPD-WA-05-041223 TO-15 SIM 91-20-3 NAPHTHALENE 0.13 J 0.071 0.38 UG/M3 0.13 J EPD-WA-05-041223 TO-15 SIM 95-47-6 O-XYLENE 0.5 0.015 0.13 UG/M3 0.50 EPD-WA-05-041223 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.26 0.0076 0.20 UG/M3 0.26 EPD-WA-05-041223 TO-15 SIM 108-88-3 TOLUENE 2.6 0.018 0.28 UG/M3 2.6 EPD-WA-05-041223 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.019 J 0.018 0.58 UG/M3 0.019 J EPD-WA-05-041223 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.039 J 0.014 0.16 UG/M3 0.039 J EPD-WA-05-041223 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.037 U 0.027 0.037 UG/M3 0.037 U EPD-WA-06-041223 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 4.9 U 0.65 4.9 UG/M3 4.9 U EPD-WA-06-041223 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.31 J 0.16 0.65 UG/M3 0.31 J EPD-WA-06-041223 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.79 U 0.17 0.79 UG/M3 0.79 U Page 15 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-06-041223 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.61 U 0.21 0.61 UG/M3 0.61 U EPD-WA-06-041223 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.65 U 0.20 0.65 UG/M3 0.65 U EPD-WA-06-041223 TO-15 106-99-0 1,3-BUTADIENE 0.29 U 0.12 0.29 UG/M3 0.29 U EPD-WA-06-041223 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.79 U 0.16 0.79 UG/M3 0.79 U EPD-WA-06-041223 TO-15 123-91-1 1,4-DIOXANE 0.48 U 0.26 0.48 UG/M3 0.48 U EPD-WA-06-041223 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.74 J 0.44 3.1 UG/M3 0.74 J EPD-WA-06-041223 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.61 J 0.44 1.9 UG/M3 0.61 J EPD-WA-06-041223 TO-15 591-78-6 2-HEXANONE 2.7 U 0.55 2.7 UG/M3 2.7 U EPD-WA-06-041223 TO-15 67-63-0 2-PROPANOL 0.58 J 0.35 6.5 UG/M3 0.58 J EPD-WA-06-041223 TO-15 107-05-1 3-CHLOROPROPENE 2.1 U 0.45 2.1 UG/M3 2.1 U EPD-WA-06-041223 TO-15 622-96-8 4-ETHYLTOLUENE 0.25 J 0.15 0.65 UG/M3 0.25 J EPD-WA-06-041223 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.54 U 0.11 0.54 UG/M3 0.54 U EPD-WA-06-041223 TO-15 67-64-1 ACETONE 8 0.89 6.3 UG/M3 8.0 EPD-WA-06-041223 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.68 U 0.36 0.68 UG/M3 0.68 U EPD-WA-06-041223 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.88 U 0.19 0.88 UG/M3 0.88 U EPD-WA-06-041223 TO-15 75-25-2 BROMOFORM 1.4 U 0.31 1.4 UG/M3 1.4 U EPD-WA-06-041223 TO-15 74-83-9 BROMOMETHANE 26 U 2.0 26 UG/M3 26 U EPD-WA-06-041223 TO-15 75-15-0 CARBON DISULFIDE 0.53 J 0.27 2.0 UG/M3 2.0 U EPD-WA-06-041223 TO-15 108-90-7 CHLOROBENZENE 0.61 U 0.17 0.61 UG/M3 0.61 U EPD-WA-06-041223 TO-15 10061-01- •5 CIS-l,3-DICHLOROPROPENE 0.6 U 0.18 0.6 UG/M3 0.60 U EPD-WA-06-041223 TO-15 98-82-8 CUMENE 0.65 U 0.098 0.65 UG/M3 0.65 U EPD-WA-06-041223 TO-15 110-82-7 CYCLOHEXANE 2.3 U 0.24 2.3 UG/M3 2.3 U EPD-WA-06-041223 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.1 U 0.23 1.1 UG/M3 1.1 U EPD-WA-06-041223 TO-15 64-17-5 ETHANOL 12 1.3 5.0 UG/M3 12 EPD-WA-06-041223 TO-15 75-69-4 FREON 11 1.1 0.11 0.74 UG/M3 1.1 EPD-WA-06-041223 TO-15 76-13-1 FREON 113 0.41 J 0.13 1.0 UG/M3 0.41 J EPD-WA-06-041223 TO-15 142-82-5 HEPTANE 0.73 J 0.55 2.7 UG/M3 0.73 J EPD-WA-06-041223 TO-15 87-68-3 HEXACHLOROBUTADIENE 7 U 0.59 7.0 UG/M3 7.0 U EPD-WA-06-041223 TO-15 110-54-3 HEXANE 0.82 J 0.39 2.3 UG/M3 0.82 J EPD-WA-06-041223 TO-15 75-09-2 METHYLENE CHLORIDE 0.36 J 0.34 0.92 UG/M3 0.36 J EPD-WA-06-041223 TO-15 103-65-1 PROPYLBENZENE 0.65 U 0.24 0.65 UG/M3 0.65 U EPD-WA-06-041223 TO-15 100-42-5 STYRENE 0.56 U 0.1 0.56 UG/M3 0.56 U EPD-WA-06-041223 TO-15 109-99-9 TETRAHYDROFURAN 1.9 U 1.2 1.9 UG/M3 1.9 U EPD-WA-06-041223 TO-15 10061-02-f TRANS-l,3-DICHLOROPROPENE 0.6 U 0.16 0.60 UG/M3 0.60 U EPD-WA-06-041223 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF Page 16 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-06-041223 TO-15 106-97-8 BUTANE 4 NJ PPBV 4.0 NJ EPD-WA-06-041223 TO-15 78-78-4 BUTANE, 2-METHYL- 4 NJ PPBV 4.0 NJ EPD-WA-06-041223 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-WA-06-041223 TO-15 589-34-4 HEXANE, 3-METHYL- 0.78 NJ PPBV 0.78 NJ EPD-WA-06-041223 TO-15 75-28-5 ISOBUTANE 2.2 NJ PPBV 2.2 NJ EPD-WA-06-041223 TO-15 109-66-0 PENTANE 2.2 NJ PPBV 2.2 NJ EPD-WA-06-041223 TO-15 107-83-5 PENTANE, 2-METHYL- 1.4 NJ PPBV 1.4 NJ EPD-WA-06-041223 TO-15 96-14-0 PENTANE, 3-METHYL- 0.9 NJ PPBV 0.90 NJ EPD-WA-06-041223 TO-15 NA UNKNOWN TIC 1.4 J PPBV 1.4 J EPD-WA-06-041223 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.14 U 0.020 0.14 UG/M3 0.14 U EPD-WA-06-041223 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.18 U 0.030 0.18 UG/M3 0.18 U EPD-WA-06-041223 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.14 U 0.029 0.14 UG/M3 0.14 U EPD-WA-06-041223 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.013 0.11 UG/M3 0.11 U EPD-WA-06-041223 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.052 U 0.026 0.052 UG/M3 0.052 U EPD-WA-06-041223 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.2 U 0.045 0.20 UG/M3 0.20 U EPD-WA-06-041223 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.075 J 0.021 0.11 UG/M3 0.075 J EPD-WA-06-041223 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.16 U 0.086 0.16 UG/M3 0.16 U EPD-WA-06-041223 TO-15 SIM 71-43-2 BENZENE 1.2 0.041 0.21 UG/M3 1.2 EPD-WA-06-041223 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.37 0.031 0.17 UG/M3 0.37 J- EPD-WA-06-041223 TO-15 SIM 75-00-3 CHLOROETHANE 0.17 U 0.11 0.17 UG/M3 0.17 U EPD-WA-06-041223 TO-15 SIM 67-66-3 CHLOROFORM 0.071 J 0.02 0.13 UG/M3 0.071 J EPD-WA-06-041223 TO-15 SIM 74-87-3 CHLOROMETHANE 0.92 J 0.13 1.4 UG/M3 0.92 J EPD-WA-06-041223 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.1 U 0.022 0.10 UG/M3 0.10 U EPD-WA-06-041223 TO-15 SIM 100-41-4 ETHYL BENZENE 0.25 0.0081 0.11 UG/M3 0.25 EPD-WA-06-041223 TO-15 SIM 76-14-2 FREON 114 0.097 J 0.026 0.18 UG/M3 0.097 J EPD-WA-06-041223 TO-15 SIM 75-71-8 FREON 12 1.8 0.019 0.33 UG/M3 1.8 EPD-WA-06-041223 TO-15 SIM 179601-23 M,P-XYLENE 0.93 0.017 0.23 UG/M3 0.93 EPD-WA-06-041223 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.48 U 0.018 0.48 UG/M3 0.48 U EPD-WA-06-041223 TO-15 SIM 91-20-3 NAPHTHALENE 0.27 J 0.065 0.34 UG/M3 0.27 J EPD-WA-06-041223 TO-15 SIM 95-47-6 O-XYLENE 0.36 0.014 0.11 UG/M3 0.36 EPD-WA-06-041223 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.29 0.0069 0.18 UG/M3 0.29 EPD-WA-06-041223 TO-15 SIM 108-88-3 TOLUENE 1.9 0.016 0.25 UG/M3 1.9 EPD-WA-06-041223 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.52 U 0.016 0.52 UG/M3 0.52 U EPD-WA-06-041223 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.14 U 0.013 0.14 UG/M3 0.14 U Page 17 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-06-041223 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.22 0.024 0.034 UG/M3 0.22 EPD-WA-55-041223 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.2 U 0.68 5.2 UG/M3 5.2 U EPD-WA-55-041223 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.27 J 0.16 0.69 UG/M3 0.27 J EPD-WA-55-041223 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.84 U 0.18 0.84 UG/M3 0.84 U EPD-WA-55-041223 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.65 U 0.23 0.65 UG/M3 0.65 U EPD-WA-55-041223 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.69 U 0.21 0.69 UG/M3 0.69 U EPD-WA-55-041223 TO-15 106-99-0 1,3-BUTADIENE 0.31 U 0.13 0.31 UG/M3 0.31 U EPD-WA-55-041223 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.84 U 0.18 0.84 UG/M3 0.84 U EPD-WA-55-041223 TO-15 123-91-1 1,4-DIOXANE 0.5 U 0.28 0.50 UG/M3 0.50 U EPD-WA-55-041223 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.64 J 0.46 3.3 UG/M3 0.64 J EPD-WA-55-041223 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.66 J 0.46 2.1 UG/M3 0.66 J EPD-WA-55-041223 TO-15 591-78-6 2-HEXANONE 2.9 U 0.58 2.9 UG/M3 2.9 U EPD-WA-55-041223 TO-15 67-63-0 2-PROPANOL 1.2 J 0.37 6.9 UG/M3 1.2 J EPD-WA-55-041223 TO-15 107-05-1 3-CHLOROPROPENE 2.2 U 0.48 2.2 UG/M3 2.2 U EPD-WA-55-041223 TO-15 622-96-8 4-ETHYLTOLUENE 0.24 J 0.16 0.69 UG/M3 0.24 J EPD-WA-55-041223 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.57 U 0.12 0.57 UG/M3 0.57 U EPD-WA-55-041223 TO-15 67-64-1 ACETONE 11 0.94 6.6 UG/M3 11 EPD-WA-55-041223 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.72 U 0.38 0.72 UG/M3 0.72 U EPD-WA-55-041223 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.94 U 0.20 0.94 UG/M3 0.94 U EPD-WA-55-041223 TO-15 75-25-2 BROMOFORM 1.4 U 0.33 1.4 UG/M3 1.4 U EPD-WA-55-041223 TO-15 74-83-9 BROMOMETHANE 27 U 2.1 27 UG/M3 27 U EPD-WA-55-041223 TO-15 75-15-0 CARBON DISULFIDE 0.65 J 0.29 2.2 UG/M3 2.2 U EPD-WA-55-041223 TO-15 108-90-7 CHLOROBENZENE 0.64 U 0.18 0.64 UG/M3 0.64 U EPD-WA-55-041223 TO-15 10061-01- •5 CIS-l,3-DICHLOROPROPENE 0.64 U 0.19 0.64 UG/M3 0.64 U EPD-WA-55-041223 TO-15 98-82-8 CUMENE 0.69 U 0.10 0.69 UG/M3 0.69 U EPD-WA-55-041223 TO-15 110-82-7 CYCLOHEXANE 2.4 U 0.25 2.4 UG/M3 2.4 U EPD-WA-55-041223 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.24 1.2 UG/M3 1.2 U EPD-WA-55-041223 TO-15 64-17-5 ETHANOL 6.4 1.4 5.3 UG/M3 6.4 EPD-WA-55-041223 TO-15 75-69-4 FREON 11 1 0.12 0.79 UG/M3 1.0 EPD-WA-55-041223 TO-15 76-13-1 FREON 113 0.46 J 0.13 1.1 UG/M3 0.46 J EPD-WA-55-041223 TO-15 142-82-5 HEPTANE 2.9 U 0.58 2.9 UG/M3 2.9 U EPD-WA-55-041223 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.5 U 0.63 7.5 UG/M3 7.5 U EPD-WA-55-041223 TO-15 110-54-3 HEXANE 0.8 J 0.41 2.5 UG/M3 0.80 J EPD-WA-55-041223 TO-15 75-09-2 METHYLENE CHLORIDE 0.51 J 0.37 0.97 UG/M3 0.51 J Page 18 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-55-041223 TO-15 103-65-1 PROPYLBENZENE 0.69 U 0.25 0.69 UG/M3 0.69 U EPD-WA-55-041223 TO-15 100-42-5 STYRENE 0.6 U 0.11 0.60 UG/M3 0.60 U EPD-WA-55-041223 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 1.3 2.1 UG/M3 2.1 U EPD-WA-55-041223 TO-15 10061-02-C TRANS-l,3-DICHLOROPROPENE 0.64 U 0.17 0.64 UG/M3 0.64 U EPD-WA-55-041223 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-WA-55-041223 TO-15 106-97-8 BUTANE 4 NJ PPBV 4.0 NJ EPD-WA-55-041223 TO-15 78-78-4 BUTANE, 2-METHYL- 3.8 NJ PPBV 3.8 NJ EPD-WA-55-041223 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-WA-55-041223 TO-15 75-28-5 ISOBUTANE 1.8 NJ PPBV 1.8 NJ EPD-WA-55-041223 TO-15 109-66-0 PENTANE 2 NJ PPBV 2.0 NJ EPD-WA-55-041223 TO-15 107-83-5 PENTANE, 2-METHYL- 1.3 NJ PPBV 1.3 NJ EPD-WA-55-041223 TO-15 96-14-0 PENTANE, 3-METHYL- 1 NJ PPBV 1.0 NJ EPD-WA-55-041223 TO-15 NA UNKNOWN TIC 2.2 J PPBV 2.2 J EPD-WA-55-041223 TO-15 NA UNKNOWN TIC 1.4 J PPBV 1.4 J EPD-WA-55-041223 TO-15 NA UNKNOWN TIC 4.1 J PPBV 4.1 J EPD-WA-55-041223 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.021 0.15 UG/M3 0.15 U EPD-WA-55-041223 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.032 0.19 UG/M3 0.19 U EPD-WA-55-041223 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.030 0.15 UG/M3 0.15 U EPD-WA-55-041223 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.014 0.11 UG/M3 0.11 U EPD-WA-55-041223 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 U 0.028 0.056 UG/M3 0.056 U EPD-WA-55-041223 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.048 0.22 UG/M3 0.22 U EPD-WA-55-041223 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.073 J 0.022 0.11 UG/M3 0.073 J EPD-WA-55-041223 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.092 0.17 UG/M3 0.17 U EPD-WA-55-041223 TO-15 SIM 71-43-2 BENZENE 0.8 0.043 0.22 UG/M3 0.80 EPD-WA-55-041223 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.4 0.033 0.18 UG/M3 0.40 J- EPD-WA-55-041223 TO-15 SIM 75-00-3 CHLOROETHANE 0.18 U 0.11 0.18 UG/M3 0.18 U EPD-WA-55-041223 TO-15 SIM 67-66-3 CHLOROFORM 0.084 J 0.022 0.14 UG/M3 0.084 J EPD-WA-55-041223 TO-15 SIM 74-87-3 CHLOROMETHANE 1 J 0.14 1.4 UG/M3 1.0 J EPD-WA-55-041223 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.024 0.11 UG/M3 0.11 U EPD-WA-55-041223 TO-15 SIM 100-41-4 ETHYL BENZENE 0.27 0.0086 0.12 UG/M3 0.27 EPD-WA-55-041223 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.028 0.20 UG/M3 0.10 J EPD-WA-55-041223 TO-15 SIM 75-71-8 FREON 12 2 0.020 0.35 UG/M3 2.0 EPD-WA-55-041223 TO-15 SIM 179601-23 M,P-XYLENE 1 0.018 0.24 UG/M3 1.0 EPD-WA-55-041223 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.5 U 0.019 0.50 UG/M3 0.50 U EPD-WA-55-041223 TO-15 SIM 91-20-3 NAPHTHALENE 0.13 J 0.068 0.37 UG/M3 0.13 J Page 19 of 40 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304210 SampleJD Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-55-041223 TO-15 SIM 95-47-6 O-XYLENE 0.52 0.015 0.12 UG/M3 0.52 EPD-WA-55-041223 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.26 0.0073 0.19 UG/M3 0.26 EPD-WA-55-041223 TO-15 SIM 108-88-3 TOLUENE 2.6 0.018 0.26 UG/M3 2.6 EPD-WA-55-041223 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 21 0.017 0.56 UG/M3 21 EPD-WA-55-041223 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.042 J 0.013 0.15 UG/M3 0.042 J EPD-WA-55-041223 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.036 U 0.026 0.036 UG/M3 0.036 U Page 20 of 40 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Site Name E Palestine Site - ER TO/TOLIN No. 68HE0520F0032/0001EB201 Document Tracking No. 1787b Laboratory Report No. 2304250 Laboratory Eurofins Air Toxics. LLC. Folsom. CA Analyses Volatile organic compounds (VOCs) by E 'A Method TO-15 in scan and selected ion monitoring (SIM) modes Sam pies and Matrix Five air samples, including one field duplicate Collection Date(s) 04/13/2023 Field Duplicate Pairs EPD-WA-03-041323/EPD-WA-33-041323 Field QC Blanks None INTRODUCTION This checklist summarizes the Stage 2 A validation performed on the subject laboratory report, in accordance with the U.S. Environmental Protection Agency (EPA) Guidance for Labeling Externally Validated Laboratory Analytical Data for Superfund Use (January 2009). Analytical data were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan, Superfund Technical Assessment and Response Team (START V), EPA Region 5, Revision 4 (August 2022) and the EPA National Functional Guidelines (NFG) for Organic Superfund Methods Data Review (November 2020). OVERALL EVALUATION No rejection of results was required for this data package. The results may be used as qualified based on the findings of this validation effort. Data completeness: Within Criteria Exceedance/Notes N Laboratory control samp 1 e/laboratory control sample duplicate relative percent differences (RPD) were not provided in the Level 11 laboratory report. The lab provided the RPDs separately. No qualifications were applied. Samples EPD-DW-C-041323. EPD-WA-06-041323. EPD-WA-01-04123. and EPD-WA-04-041323 listed on the chain of custody (COC) were not received by the laboratory as part of this SDG. These four samples were analyzed and reported in SDG 2304258. The COC information for samples EPD-WA-33-041323. EPD-UW-G-041323. and EPD-WA-05-041323 did not match the entries on the sample tags with regard to sample identification. Therefore the information on the COC was used to process and report the samples. No qualifications were applied. Sample EPD-WA-33-041323 had a typographical error in the original COC and lab report, which incorrectly listed the sample as EPD-ST-WA-33-041323. A revised lab report was issued. EPD-WA-33-041323 has been used to identify the sample throughout this validation report. TETRA TECH Page 1 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Sample preservation, receipt, and holding times: Within Criteria Exceedance/Notes N The canister receipt vacuum/pressures values in the laboratory report were recorded as positive values. The laboratory was contacted and confirmed that the all values are negative, even though the minus signs were missing, and that the laboratory used the following convention for recording Summa canister vacuums and pressures: vacuums are recorded as positive values using the unit of inches of mercury ("Hg), and positive pressures are recorded using the unit pounds per square inch (psi). No qualifications were applied. Method blanks: Within Criteria Exceedance/Notes N TO-15 scan (2304250-08A): 1.2.4-Trichlorobenzene. alpha-chlorotoluene. hexachlorobutadiene. and methylene chloride were detected in the method blank at levels between the method detection limit (MDL) and reporting limit (RL). • The methylene chloride results in EPD-UW-G-041323 and EPD-WA-05-041323, and the 1.2.4-trichlorobenzene. alpha- chlorotoluene. and hexachlorobutadiene results in all samples were nondetect. therefore no qualifications were applied. • The methylene chloride results in EPD-WA-02-041323, EPD-WA-03-041323, and EPD-WA-33-041323 were qualified as not detected (flagged U) at the RL. TO-15 SIM (2304250-08B): 1.1.2.2-tetrachloroethane. 1.4-dichlorobenzene. cis-1.2-dichloroethene. naphthalene, tetrach 1 oroethene. and trans-1,2-dichloroethene were detected in the method blank at levels between the MDL and RL. • The 1.1.2.2-tetrachloroethane. 1.4-dichlorobenzene. and cis-1.2-dichloroethene results were nondetect in all samples, therefore no qualifications were applied. • The naphthalene result in EPD-WA-02-041323 was qualified as estimated with a high bias (flagged J+). • The naphthalene result in EPD-UW-G-041323, EPD-WA-03-041323, EPD-WA-05-041323, and EPD-WA-33-041323 were qualified as not detected (flagged U) at the RL. • The tetrachloroethene result in all samples were qualified as not detected (flagged U) at the RL. • The trans-1,2-dichloroethene result in EPD-WA-03-041323 was qualified as not detected (flagged U) at the RL. • The trans- 1,2-dichloroetene results in all other samples were nondetect. therefore no qualifications were applied. Field blanks: Within Criteria Exceedance/Notes NA TETRA TECH Page 2 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Surrogates and labeled compounds: Within Criteria Exceedance/Notes Y MS/MSDs: Within Criteria Exceedance/Notes NA Laboratory duplicates: Within Criteria Exceedance/Notes NA Field duplicates: Within Criteria Exceedance/Notes Y LCSs/LCSDs: Within Criteria Exceedance/Notes Y TETRA TECH Page 3 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Sample dilutions: Within Criteria Exceedance/Notes Y Canister dilution factor for: • EPD-UW-G-041323 was 1.34. • EPD-WA-02-041323 was 1.42. • EPD-WA-03-041323 was 1.51. • EPD-WA-05-041323 was 1.48. • EPD-WA-33-041323 was 1.39. Re-extraction and reanalysis: Within Criteria Exceedance/Notes NA MDLs/RLs: Within Criteria Exceedance/Notes Y Detections between the MDL and RL were reported and qualified as estimated (flagged J) by the laboratory. Tentatively identified compounds: Within Criteria Exceedance/Notes Y Tentatively identified compounds (TICs) were detected in all samples. The known TICs were qualified as tentatively identified (flagged NJ). 2-Ethyl-l-hexanol and butyl aery late in all samples were reported as not detected and qualified as manually searched for. but not found in the sample (flagged U,NF). Other [None]: Within Criteria Exceedance/Notes NA TETRA TECH Page 4 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Overall Qualifications: See results summary pages attached for changes to the laboratory qualifiers based upon this validation. The follow ing is a list of qualifiers and definitions that may be used for the validation of this data package: J The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample. J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high. J- The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased low. NF The tentatively identified compound was manually searched for but was not found in the sample. NJ The analysis indicates the presence of an analyte that has been "tentatively identified" and the associated value is the approximate concentration of the analvte in the sample. R The sample result is rejected as unusable due to serious deficiencies in one or more quality control criteria. The analyte may or may not be present in the sample. U The analyte was analyzed for. but was not detected at or above the associated value (reporting limit). UJ The analyte was analyzed for. but was not detected at or above the associated value (reporting limit), which is considered approximate due to deficiencies in one or more quality control criteria. TETRA TECH Page 5 of 5 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val EPD-UW-G-041323 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.0 U 0.29 5.0 UG/M3 5.0 U EPD-UW-G-041323 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.44 J 0.085 0.66 UG/M3 0.44 J EPD-UW-G-041323 TO-15 95-50-1 1,2-DICHLORO BENZENE 0.80 U 0.11 0.80 UG/M3 0.80 U EPD-UW-G-041323 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.62 U 0.089 0.62 UG/M3 0.62 u EPD-UW-G-041323 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.14 J 0.11 0.66 UG/M3 0.14 J EPD-UW-G-041323 TO-15 106-99-0 1,3-BUTADIENE 0.30 u 0.067 0.30 UG/M3 0.30 u EPD-UW-G-041323 TO-15 541-73-1 1,3-DICH LO ROBE NZENE 0.80 u 0.15 0.80 UG/M3 0.80 u EPD-UW-G-041323 TO-15 123-91-1 1,4-DIOXANE 0.48 u 0.14 0.48 UG/M3 0.48 u EPD-UW-G-041323 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.53 J 0.14 3.1 UG/M3 0.53 J EPD-UW-G-041323 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.85 J 0.21 2.0 UG/M3 0.85 J EPD-UW-G-041323 TO-15 591-78-6 2-HEXANONE 2.7 u 0.40 2.7 UG/M3 2.7 u EPD-UW-G-041323 TO-15 67-63-0 2-PROPANOL 0.63 J 0.18 6.6 UG/M3 0.63 J EPD-UW-G-041323 TO-15 107-05-1 3-CHLOROPROPENE 2.1 u 0.23 2.1 UG/M3 2.1 u EPD-UW-G-041323 TO-15 622-96-8 4-ETHYLTOLUENE 0.39 J 0.12 0.66 UG/M3 0.39 J EPD-UW-G-041323 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.13 J 0.086 0.55 UG/M3 0.13 J EPD-UW-G-041323 TO-15 67-64-1 ACETONE 6.5 0.64 6.4 UG/M3 6.5 EPD-UW-G-041323 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.69 u 0.10 0.69 UG/M3 0.69 u EPD-UW-G-041323 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.90 u 0.089 0.90 UG/M3 0.90 u EPD-UW-G-041323 TO-15 75-25-2 BROMOFORM 1.4 u 0.13 1.4 UG/M3 1.4 u EPD-UW-G-041323 TO-15 74-83-9 BROMOMETHANE 26 u 0.77 26 UG/M3 26 u EPD-UW-G-041323 TO-15 75-15-0 CARBON DISULFIDE 2.1 u 0.31 2.1 UG/M3 2.1 u EPD-UW-G-041323 TO-15 108-90-7 CHLOROBENZENE 0.62 u 0.062 0.62 UG/M3 0.62 u EPD-UW-G-041323 TO-15 10061-01-5 CIS-1,3-DICH LOROPROPENE 0.61 u 0.088 0.61 UG/M3 0.61 u EPD-UW-G-041323 TO-15 98-82-8 CUMENE 0.66 u 0.14 0.66 UG/M3 0.66 u EPD-UW-G-041323 TO-15 110-82-7 CYCLOHEXANE 0.13 J 0.10 2.3 UG/M3 0.13 J EPD-UW-G-041323 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.1 u 0.18 1.1 UG/M3 1.1 u EPD-UW-G-041323 TO-15 64-17-5 ETHANOL 4.6 J 0.44 5.0 UG/M3 4.6 J EPD-UW-G-041323 TO-15 75-69-4 FREON 11 1.0 0.085 0.75 UG/M3 1.0 EPD-UW-G-041323 TO-15 76-13-1 FREON 113 0.44 J 0.15 1.0 UG/M3 0.44 J EPD-UW-G-041323 TO-15 142-82-5 HEPTANE 0.49 J 0.066 2.7 UG/M3 0.49 J EPD-UW-G-041323 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.1 u 0.082 7.1 UG/M3 7.1 u EPD-UW-G-041323 TO-15 110-54-3 HEXANE 1.0 J 0.071 2.4 UG/M3 1.0 J EPD-UW-G-041323 TO-15 75-09-2 METHYLENE CHLORIDE 0.93 u 0.54 0.93 UG/M3 0.93 u EPD-UW-G-041323 TO-15 103-65-1 PROPYLBENZENE 0.66 u 0.11 0.66 UG/M3 0.66 u EPD-UW-G-041323 TO-15 100-42-5 STYRENE 0.57 u 0.13 0.57 UG/M3 0.57 u EPD-UW-G-041323 TO-15 109-99-9 TETRAHYDROFURAN 2.0 u 0.64 2.0 UG/M3 2.0 u Page 1 of 20 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-UW-G-041323 TO-15 10061-02-6 TRANS-1,3-DICHLOROPROPENE 0.61 U 0.083 0.61 UG/M3 0.61 U EPD-UW-G-041323 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-UW-G-041323 TO-15 106-97-8 BUTANE 1.7 NJ PPBV 1.7 NJ EPD-UW-G-041323 TO-15 78-78-4 BUTANE, 2-METHYL- 1.7 NJ PPBV 1.7 NJ EPD-UW-G-041323 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-UW-G-041323 TO-15 75-28-5 ISOBUTANE 0.72 NJ PPBV 0.72 NJ EPD-UW-G-041323 TO-15 109-66-0 PENTANE 0.89 NJ PPBV 0.89 NJ EPD-UW-G-041323 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.013 0.15 UG/M3 0.15 U EPD-UW-G-041323 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.18 U 0.019 0.18 UG/M3 0.18 U EPD-UW-G-041323 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.021 0.15 UG/M3 0.15 U EPD-UW-G-041323 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.0095 0.11 UG/M3 0.11 U EPD-UW-G-041323 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.053 U 0.014 0.053 UG/M3 0.053 U EPD-UW-G-041323 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.20 U 0.14 0.20 UG/M3 0.20 U EPD-UW-G-041323 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.054 J 0.031 0.11 UG/M3 0.054 J EPD-UW-G-041323 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.16 U 0.13 0.16 UG/M3 0.16 U EPD-UW-G-041323 TO-15 SIM 71-43-2 BENZENE 0.62 0.026 0.21 UG/M3 0.62 EPD-UW-G-041323 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.41 0.046 0.17 UG/M3 0.41 EPD-UW-G-041323 TO-15 SIM 75-00-3 CHLOROETHANE 0.18 u 0.0076 0.18 UG/M3 0.18 u EPD-UW-G-041323 TO-15 SIM 67-66-3 CHLOROFORM 0.068 J 0.012 0.13 UG/M3 0.068 J EPD-UW-G-041323 TO-15 SIM 74-87-3 CHLOROMETHANE 0.61 J 0.21 1.4 UG/M3 0.61 J EPD-UW-G-041323 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 u 0.029 0.11 UG/M3 0.11 u EPD-UW-G-041323 TO-15SIM 100-41-4 ETHYL BENZENE 0.32 0.017 0.12 UG/M3 0.32 EPD-UW-G-041323 TO-15 SIM 76-14-2 FREON 114 0.097 J 0.010 0.19 UG/M3 0.097 J EPD-UW-G-041323 TO-15 SIM 75-71-8 FREON 12 1.8 0.026 0.33 UG/M3 1.8 EPD-UW-G-041323 TO-15 SIM 179601-23-1 M,P-XYLENE 1.2 0.030 0.23 UG/M3 1.2 EPD-UW-G-041323 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.48 u 0.017 0.48 UG/M3 0.48 u EPD-UW-G-041323 TO-15 SIM 91-20-3 NAPHTHALENE 0.12 J 0.044 0.35 UG/M3 0.35 u EPD-UW-G-041323 TO-15 SIM 95-47-6 O-XYLENE 0.49 0.022 0.12 UG/M3 0.49 EPD-UW-G-041323 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.085 J 0.013 0.18 UG/M3 0.18 u EPD-UW-G-041323 TO-15 SIM 108-88-3 TOLUENE 2.2 0.015 0.25 UG/M3 2.2 EPD-UW-G-041323 TO-15 SIM 156-60-5 TRANS-1,2-DICHLOROETHENE 0.53 u 0.024 0.53 UG/M3 0.53 u EPD-UW-G-041323 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.14 u 0.027 0.14 UG/M3 0.14 u EPD-UW-G-041323 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.034 u 0.013 0.034 UG/M3 0.034 u EPD-WA-02-041323 EPD-WA-02-041323 EPD-WA-02-041323 TO-15 TO-15 TO-15 120-82-1 95-63-6 95-50-1 1,2,4-TRICHLOROBENZENE 1,2,4-TRIMETHYLBENZENE 1,2-DICHLOROBENZENE 5.3 U 0.44 J 0.85 U 0.31 0.090 0.12 5.3 0.70 0.85 UG/M3 UG/M3 UG/M3 5.3 U 0.44 J 0.85 U Page 2 of 20 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-02-041323 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.66 U 0.094 0.66 UG/M3 0.66 U EPD-WA-02-041323 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.15 J 0.11 0.70 UG/M3 0.15 J EPD-WA-02-041323 TO-15 106-99-0 1,3-BUTADIENE 0.31 U 0.071 0.31 UG/M3 0.31 U EPD-WA-02-041323 TO-15 541-73-1 1,3-DICH LO ROBE NZENE 0.85 U 0.16 0.85 UG/M3 0.85 U EPD-WA-02-041323 TO-15 123-91-1 1,4-DIOXANE 0.51 u 0.15 0.51 UG/M3 0.51 u EPD-WA-02-041323 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.50 J 0.15 3.3 UG/M3 0.50 J EPD-WA-02-041323 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.81 J 0.22 2.1 UG/M3 0.81 J EPD-WA-02-041323 TO-15 591-78-6 2-HEXANONE 2.9 u 0.42 2.9 UG/M3 2.9 u EPD-WA-02-041323 TO-15 67-63-0 2-PROPANOL 0.80 J 0.20 7.0 UG/M3 0.80 J EPD-WA-02-041323 TO-15 107-05-1 3-CHLOROPROPENE 2.2 u 0.25 2.2 UG/M3 2.2 u EPD-WA-02-041323 TO-15 622-96-8 4-ETHYLTO LUENE 0.40 J 0.13 0.70 UG/M3 0.40 J EPD-WA-02-041323 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.22 J 0.092 0.58 UG/M3 0.22 J EPD-WA-02-041323 TO-15 67-64-1 ACETONE 5.8 J 0.68 6.7 UG/M3 5.8 J EPD-WA-02-041323 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.74 u 0.11 0.74 UG/M3 0.74 u EPD-WA-02-041323 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.95 u 0.094 0.95 UG/M3 0.95 u EPD-WA-02-041323 TO-15 75-25-2 BROMOFORM 1.5 u 0.14 1.5 UG/M3 1.5 u EPD-WA-02-041323 TO-15 74-83-9 BROMOMETHANE 28 u 0.82 28 UG/M3 28 u EPD-WA-02-041323 TO-15 75-15-0 CARBON DISULFIDE 2.2 u 0.33 2.2 UG/M3 2.2 u EPD-WA-02-041323 TO-15 108-90-7 CHLOROBENZENE 0.65 u 0.066 0.65 UG/M3 0.65 u EPD-WA-02-041323 TO-15 10061-01-5 CIS-1,3-DICH LOROPROPENE 0.64 u 0.094 0.64 UG/M3 0.64 u EPD-WA-02-041323 TO-15 98-82-8 CUMENE 0.70 u 0.15 0.7 UG/M3 0.70 u EPD-WA-02-041323 TO-15 110-82-7 CYCLOHEXANE 0.13 J 0.11 2.4 UG/M3 0.13 J EPD-WA-02-041323 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 u 0.19 1.2 UG/M3 1.2 u EPD-WA-02-041323 TO-15 64-17-5 ETHANOL 5.6 0.47 5.4 UG/M3 5.6 EPD-WA-02-041323 TO-15 75-69-4 FREON 11 1.0 0.090 0.80 UG/M3 1.0 EPD-WA-02-041323 TO-15 76-13-1 FREON 113 0.44 J 0.16 1.1 UG/M3 0.44 J EPD-WA-02-041323 TO-15 142-82-5 HEPTANE 0.44 J 0.070 2.9 UG/M3 0.44 J EPD-WA-02-041323 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.6 u 0.086 7.6 UG/M3 7.6 u EPD-WA-02-041323 TO-15 110-54-3 HEXANE 0.81 J 0.075 2.5 UG/M3 0.81 J EPD-WA-02-041323 TO-15 75-09-2 METHYLENE CHLORIDE 0.66 J 0.57 0.99 UG/M3 0.99 u EPD-WA-02-041323 TO-15 103-65-1 PROPYLBENZENE 0.70 u 0.12 0.70 UG/M3 0.70 u EPD-WA-02-041323 TO-15 100-42-5 STYRENE 0.60 u 0.14 0.60 UG/M3 0.60 u EPD-WA-02-041323 TO-15 109-99-9 TETRAHYDROFURAN 2.1 u 0.67 2.1 UG/M3 2.1 u EPD-WA-02-041323 TO-15 10061-02-6 TRANS-1,3-DICH LOROPROPENE 0.64 u 0.088 0.64 UG/M3 0.64 u EPD-WA-02-041323 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 u PPBV 0 U,NF EPD-WA-02-041323 TO-15 106-97-8 BUTANE 1.4 NJ PPBV 1.4 NJ Page 3 of 20 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-02-041323 TO-15 78-78-4 BUTANE, 2-METHYL- 1.3 NJ PPBV 1.3 NJ EPD-WA-02-041323 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-WA-02-041323 TO-15 109-66-0 PENTANE 0.83 NJ PPBV 0.83 NJ EPD-WA-02-041323 TO-15 SIM 71-55-6 1,1,1-TRICHLORO ETHANE 0.15 U 0.014 0.15 UG/M3 0.15 U EPD-WA-02-041323 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.020 0.19 UG/M3 0.19 U EPD-WA-02-041323 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.022 0.15 UG/M3 0.15 U EPD-WA-02-041323 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.010 0.11 UG/M3 0.11 U EPD-WA-02-041323 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 U 0.015 0.056 UG/M3 0.056 U EPD-WA-02-041323 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.15 0.22 UG/M3 0.22 U EPD-WA-02-041323 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.052 J 0.033 0.11 UG/M3 0.052 J EPD-WA-02-041323 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.13 0.17 UG/M3 0.17 u EPD-WA-02-041323 TO-15 SIM 71-43-2 BENZENE 0.91 0.028 0.23 UG/M3 0.91 EPD-WA-02-041323 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.42 0.049 0.18 UG/M3 0.42 EPD-WA-02-041323 TO-15 SIM 75-00-3 CHLOROETHANE 0.0092 J 0.0080 0.19 UG/M3 0.0092 J EPD-WA-02-041323 TO-15 SIM 67-66-3 CHLOROFORM 0.065 J 0.013 0.14 UG/M3 0.065 J EPD-WA-02-041323 TO-15 SIM 74-87-3 CHLOROMETHANE 0.65 J 0.22 1.5 UG/M3 0.65 J EPD-WA-02-041323 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 u 0.030 0.11 UG/M3 0.11 u EPD-WA-02-041323 TO-15 SIM 100-41-4 ETHYL BENZENE 0.33 0.018 0.12 UG/M3 0.33 EPD-WA-02-041323 TO-15 SIM 76-14-2 FREON 114 0.10 J 0.011 0.20 UG/M3 0.10 J EPD-WA-02-041323 TO-15 SIM 75-71-8 FREON 12 1.8 0.028 0.35 UG/M3 1.8 EPD-WA-02-041323 TO-15 SIM 179601-23-1 M,P-XYLENE 1.2 0.032 0.25 UG/M3 1.2 EPD-WA-02-041323 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.51 u 0.018 0.51 UG/M3 0.51 u EPD-WA-02-041323 TO-15 SIM 91-20-3 NAPHTHALENE 0.38 0.046 0.37 UG/M3 0.38 J+ EPD-WA-02-041323 TO-15 SIM 95-47-6 O-XYLENE 0.48 0.023 0.12 UG/M3 0.48 EPD-WA-02-041323 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.082 J 0.014 0.19 UG/M3 0.19 u EPD-WA-02-041323 TO-15 SIM 108-88-3 TOLUENE 2.0 0.016 0.27 UG/M3 2.0 EPD-WA-02-041323 TO-15 SIM 156-60-5 TRANS-1,2-DICHLOROETHENE 0.56 u 0.026 0.56 UG/M3 0.56 u EPD-WA-02-041323 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.15 u 0.028 0.15 UG/M3 0.15 u EPD-WA-02-041323 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.55 0.014 0.036 UG/M3 0.55 EPD-WA-03-041323 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.6 u 0.33 5.6 UG/M3 5.6 u EPD-WA-03-041323 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.31 J 0.096 0.74 UG/M3 0.31 J EPD-WA-03-041323 TO-15 95-50-1 1,2-DICH LO ROBE NZENE 0.91 u 0.13 0.91 UG/M3 0.91 u EPD-WA-03-041323 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.70 u 0.10 0.70 UG/M3 0.70 u EPD-WA-03-041323 TO-15 108-67-8 1,3,5-TRIMETHYLBE NZENE 0.74 u 0.12 0.74 UG/M3 0.74 u EPD-WA-03-041323 TO-15 106-99-0 1,3-BUTADIENE 0.33 u 0.076 0.33 UG/M3 0.33 u EPD-WA-03-041323 TO-15 541-73-1 1,3-DICH LOROBE NZENE 0.91 u 0.17 0.91 UG/M3 0.91 u Page 4 of 20 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-03-041323 TO-15 123-91-1 1,4-DIOXANE 0.54 U 0.16 0.54 UG/M3 0.54 U EPD-WA-03-041323 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.60 J 0.16 3.5 UG/M3 0.60 J EPD-WA-03-041323 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.1 J 0.24 2.2 UG/M3 1.1 J EPD-WA-03-041323 TO-15 591-78-6 2-HEXANONE 3.1 U 0.45 3.1 UG/M3 3.1 U EPD-WA-03-041323 TO-15 67-63-0 2-PROPANOL 0.96 J 0.21 7.4 UG/M3 0.96 J EPD-WA-03-041323 TO-15 107-05-1 3-CHLOROPROPENE 2.4 u 0.26 2.4 UG/M3 2.4 u EPD-WA-03-041323 TO-15 622-96-8 4-ETHYLTO LUENE 0.21 J 0.14 0.74 UG/M3 0.21 J EPD-WA-03-041323 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.45 J 0.097 0.62 UG/M3 0.45 J EPD-WA-03-041323 TO-15 67-64-1 ACETONE 11 0.73 7.2 UG/M3 11 EPD-WA-03-041323 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.78 u 0.12 0.78 UG/M3 0.78 u EPD-WA-03-041323 TO-15 75-27-4 BROMODICHLOROM ETHANE 1.0 u 0.10 1.0 UG/M3 1.0 u EPD-WA-03-041323 TO-15 75-25-2 BROMOFORM 1.6 u 0.15 1.6 UG/M3 1.6 u EPD-WA-03-041323 TO-15 74-83-9 BROMOMETHANE 29 u 0.87 29 UG/M3 29 u EPD-WA-03-041323 TO-15 75-15-0 CARBON DISULFIDE 2.4 u 0.35 2.4 UG/M3 2.4 u EPD-WA-03-041323 TO-15 108-90-7 CHLOROBENZENE 0.70 u 0.070 0.70 UG/M3 0.70 u EPD-WA-03-041323 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.68 u 0.10 0.68 UG/M3 0.68 u EPD-WA-03-041323 TO-15 98-82-8 CUMENE 0.74 u 0.16 0.74 UG/M3 0.74 u EPD-WA-03-041323 TO-15 110-82-7 CYCLOHEXANE 2.6 u 0.12 2.6 UG/M3 2.6 u EPD-WA-03-041323 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 u 0.20 1.3 UG/M3 1.3 u EPD-WA-03-041323 TO-15 64-17-5 ETHANOL 6.0 0.50 5.7 UG/M3 6.0 EPD-WA-03-041323 TO-15 75-69-4 FREON 11 1.0 0.095 0.85 UG/M3 1.0 EPD-WA-03-041323 TO-15 76-13-1 FREON 113 0.44 J 0.17 1.2 UG/M3 0.44 J EPD-WA-03-041323 TO-15 142-82-5 HEPTANE 1.3 J 0.074 3.1 UG/M3 1.3 J EPD-WA-03-041323 TO-15 87-68-3 HEXACHLOROBUTADIENE 8.0 u 0.092 8.0 UG/M3 8.0 u EPD-WA-03-041323 TO-15 110-54-3 HEXANE 1.5 J 0.080 2.7 UG/M3 1.5 J EPD-WA-03-041323 TO-15 75-09-2 METHYLENE CHLORIDE 0.65 J 0.61 1.0 UG/M3 1.0 u EPD-WA-03-041323 TO-15 103-65-1 PROPYLBENZENE 0.74 u 0.12 0.74 UG/M3 0.74 u EPD-WA-03-041323 TO-15 100-42-5 STYRENE 0.64 u 0.15 0.64 UG/M3 0.64 u EPD-WA-03-041323 TO-15 109-99-9 TETRAHYDROFURAN 0.90 J 0.72 2.2 UG/M3 0.90 J EPD-WA-03-041323 TO-15 10061-02-6 TRANS-1,3-DICHLOROPROPENE 0.68 u 0.094 0.68 UG/M3 0.68 u EPD-WA-03-041323 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 u PPBV 0 U,NF EPD-WA-03-041323 TO-15 106-97-8 BUTANE 1.3 NJ PPBV 1.3 NJ EPD-WA-03-041323 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 u PPBV 0 U,NF EPD-WA-03-041323 TO-15 5989-27-5 D-LIMONENE 2.6 NJ PPBV 2.6 NJ EPD-WA-03-041323 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.015 0.16 UG/M3 0.16 U EPD-WA-03-041323 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.21 U 0.021 0.21 UG/M3 0.21 U Page 5 of 20 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-03-041323 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.024 0.16 UG/M3 0.16 U EPD-WA-03-041323 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.011 0.12 UG/M3 0.12 U EPD-WA-03-041323 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.060 U 0.016 0.060 UG/M3 0.060 U EPD-WA-03-041323 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.16 0.23 UG/M3 0.23 U EPD-WA-03-041323 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.055 J 0.035 0.12 UG/M3 0.055 J EPD-WA-03-041323 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.14 0.18 UG/M3 0.18 U EPD-WA-03-041323 TO-15 SIM 71-43-2 BENZENE 0.51 0.030 0.24 UG/M3 0.51 EPD-WA-03-041323 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.41 0.052 0.19 UG/M3 0.41 EPD-WA-03-041323 TO-15 SIM 75-00-3 CHLOROETHANE 0.026 J 0.0085 0.20 UG/M3 0.026 J EPD-WA-03-041323 TO-15 SIM 67-66-3 CHLOROFORM 0.074 J 0.014 0.15 UG/M3 0.074 J EPD-WA-03-041323 TO-15 SIM 74-87-3 CHLOROMETHANE 0.66 J 0.23 1.6 UG/M3 0.66 J EPD-WA-03-041323 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 u 0.032 0.12 UG/M3 0.12 u EPD-WA-03-041323 TO-15 SIM 100-41-4 ETHYL BENZENE 0.17 0.020 0.13 UG/M3 0.17 EPD-WA-03-041323 TO-15 SIM 76-14-2 FREON 114 0.10 J 0.011 0.21 UG/M3 0.10 J EPD-WA-03-041323 TO-15 SIM 75-71-8 FREON 12 1.8 0.029 0.37 UG/M3 1.8 EPD-WA-03-041323 TO-15 SIM 179601-23-1 M,P-XYLENE 0.59 0.034 0.26 UG/M3 0.59 EPD-WA-03-041323 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.54 u 0.020 0.54 UG/M3 0.54 u EPD-WA-03-041323 TO-15 SIM 91-20-3 NAPHTHALENE 0.17 J 0.050 0.40 UG/M3 0.40 u EPD-WA-03-041323 TO-15 SIM 95-47-6 O-XYLENE 0.26 0.025 0.13 UG/M3 0.26 EPD-WA-03-041323 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.096 J 0.015 0.20 UG/M3 0.20 u EPD-WA-03-041323 TO-15 SIM 108-88-3 TOLUENE 1.4 0.017 0.28 UG/M3 1.4 EPD-WA-03-041323 TO-15 SIM 156-60-5 TRANS-1,2-DICHLOROETHENE 0.11 J 0.027 0.60 UG/M3 0.60 u EPD-WA-03-041323 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 u 0.030 0.16 UG/M3 0.16 u EPD-WA-03-041323 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.15 0.015 0.038 UG/M3 0.15 EPD-WA-05-041323 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.5 u 0.32 5.5 UG/M3 5.5 u EPD-WA-05-041323 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.34 J 0.094 0.73 UG/M3 0.34 J EPD-WA-05-041323 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.89 u 0.12 0.89 UG/M3 0.89 u EPD-WA-05-041323 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.68 u 0.098 0.68 UG/M3 0.68 u EPD-WA-05-041323 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.73 u 0.12 0.73 UG/M3 0.73 u EPD-WA-05-041323 TO-15 106-99-0 1,3-BUTADIENE 0.33 u 0.074 0.33 UG/M3 0.33 u EPD-WA-05-041323 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.89 u 0.17 0.89 UG/M3 0.89 u EPD-WA-05-041323 TO-15 123-91-1 1,4-DIOXANE 0.53 u 0.16 0.53 UG/M3 0.53 u EPD-WA-05-041323 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.44 J 0.16 3.4 UG/M3 0.44 J EPD-WA-05-041323 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.76 J 0.23 2.2 UG/M3 0.76 J EPD-WA-05-041323 TO-15 591-78-6 2-HEXANONE 3.0 u 0.44 3.0 UG/M3 3.0 u EPD-WA-05-041323 TO-15 67-63-0 2-PROPANOL 0.57 J 0.20 7.3 UG/M3 0.57 J Page 6 of 20 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-05-041323 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.26 2.3 UG/M3 2.3 U EPD-WA-05-041323 TO-15 622-96-8 4-ETHYLTOLUENE 0.33 J 0.13 0.73 UG/M3 0.33 J EPD-WA-05-041323 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.13 J 0.095 0.61 UG/M3 0.13 J EPD-WA-05-041323 TO-15 67-64-1 ACETONE 6.6 J 0.71 7.0 UG/M3 6.6 J EPD-WA-05-041323 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.77 U 0.11 0.77 UG/M3 0.77 U EPD-WA-05-041323 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.99 U 0.098 0.99 UG/M3 0.99 U EPD-WA-05-041323 TO-15 75-25-2 BROMOFORM 1.5 u 0.15 1.5 UG/M3 1.5 u EPD-WA-05-041323 TO-15 74-83-9 BROMOMETHANE 29 u 0.85 29 UG/M3 29 u EPD-WA-05-041323 TO-15 75-15-0 CARBON DISULFIDE 2.3 u 0.35 2.3 UG/M3 2.3 u EPD-WA-05-041323 TO-15 108-90-7 CHLOROBENZENE 0.68 u 0.069 0.68 UG/M3 0.68 u EPD-WA-05-041323 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.67 u 0.098 0.67 UG/M3 0.67 u EPD-WA-05-041323 TO-15 98-82-8 CUMENE 0.73 u 0.16 0.73 UG/M3 0.73 u EPD-WA-05-041323 TO-15 110-82-7 CYCLOHEXANE 0.12 J 0.11 2.5 UG/M3 0.12 J EPD-WA-05-041323 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 u 0.20 1.3 UG/M3 1.3 u EPD-WA-05-041323 TO-15 64-17-5 ETHANOL 4.6 J 0.49 5.6 UG/M3 4.6 J EPD-WA-05-041323 TO-15 75-69-4 FREON 11 1.0 0.093 0.83 UG/M3 1.0 EPD-WA-05-041323 TO-15 76-13-1 FREON 113 0.43 J 0.17 1.1 UG/M3 0.43 J EPD-WA-05-041323 TO-15 142-82-5 HEPTANE 0.41 J 0.073 3.0 UG/M3 0.41 J EPD-WA-05-041323 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.9 u 0.09 7.9 UG/M3 7.9 u EPD-WA-05-041323 TO-15 110-54-3 HEXANE 0.81 J 0.078 2.6 UG/M3 0.81 J EPD-WA-05-041323 TO-15 75-09-2 METHYLENE CHLORIDE 1.0 u 0.60 1.0 UG/M3 1.0 u EPD-WA-05-041323 TO-15 103-65-1 PROPYLBENZENE 0.73 u 0.12 0.73 UG/M3 0.73 u EPD-WA-05-041323 TO-15 100-42-5 STYRENE 0.63 u 0.15 0.63 UG/M3 0.63 u EPD-WA-05-041323 TO-15 109-99-9 TETRAHYDROFURAN 2.2 u 0.70 2.2 UG/M3 2.2 u EPD-WA-05-041323 TO-15 10061-02-6 TRANS-1,3-DICHLOROPROPENE 0.67 u 0.092 0.67 UG/M3 0.67 u EPD-WA-05-041323 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 u PPBV 0 U,NF EPD-WA-05-041323 TO-15 106-97-8 BUTANE 1.7 NJ PPBV 1.7 NJ EPD-WA-05-041323 TO-15 78-78-4 BUTANE, 2-METHYL- 1.6 NJ PPBV 1.6 NJ EPD-WA-05-041323 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-WA-05-041323 TO-15 109-66-0 PENTANE 0.91 NJ PPBV 0.91 NJ EPD-WA-05-041323 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.014 0.16 UG/M3 0.16 U EPD-WA-05-041323 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.20 U 0.021 0.20 UG/M3 0.20 U EPD-WA-05-041323 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.023 0.16 UG/M3 0.16 U EPD-WA-05-041323 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.010 0.12 UG/M3 0.12 U EPD-WA-05-041323 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.016 0.059 UG/M3 0.059 U EPD-WA-05-041323 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.15 0.23 UG/M3 0.23 U Page 7 of 20 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-05-041323 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.052 J 0.035 0.12 UG/M3 0.052 J EPD-WA-05-041323 TO-15 SIM 106-46-7 1,4-DICH LO ROBE NZENE 0.18 U 0.14 0.18 UG/M3 0.18 U EPD-WA-05-041323 TO-15 SIM 71-43-2 BENZENE 0.60 0.029 0.24 UG/M3 0.60 EPD-WA-05-041323 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.41 0.051 0.19 UG/M3 0.41 EPD-WA-05-041323 TO-15 SIM 75-00-3 CHLOROETHANE 0.017 J 0.0084 0.20 UG/M3 0.017 J EPD-WA-05-041323 TO-15 SIM 67-66-3 CHLOROFORM 0.068 J 0.014 0.14 UG/M3 0.068 J EPD-WA-05-041323 TO-15 SIM 74-87-3 CHLOROMETHANE 0.63 J 0.23 1.5 UG/M3 0.63 J EPD-WA-05-041323 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 u 0.032 0.12 UG/M3 0.12 u EPD-WA-05-041323 TO-15 SIM 100-41-4 ETHYL BENZENE 0.29 0.019 0.13 UG/M3 0.29 EPD-WA-05-041323 TO-15 SIM 76-14-2 FREON 114 0.092 J 0.011 0.21 UG/M3 0.092 J EPD-WA-05-041323 TO-15 SIM 75-71-8 FREON 12 1.8 0.029 0.36 UG/M3 1.8 EPD-WA-05-041323 TO-15 SIM 179601-23-1 M,P-XYLENE 1.1 0.033 0.26 UG/M3 1.1 EPD-WA-05-041323 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.53 u 0.019 0.53 UG/M3 0.53 u EPD-WA-05-041323 TO-15 SIM 91-20-3 NAPHTHALENE 0.26 J 0.048 0.39 UG/M3 0.39 u EPD-WA-05-041323 TO-15 SIM 95-47-6 O-XYLENE 0.40 0.024 0.13 UG/M3 0.40 EPD-WA-05-041323 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.12 J 0.014 0.20 UG/M3 0.20 u EPD-WA-05-041323 TO-15 SIM 108-88-3 TOLUENE 2.0 0.017 0.28 UG/M3 2.0 EPD-WA-05-041323 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.59 u 0.027 0.59 UG/M3 0.59 u EPD-WA-05-041323 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 u 0.030 0.16 UG/M3 0.16 u EPD-WA-05-041323 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.038 u 0.015 0.038 UG/M3 0.038 u EPD-WA-33-041323 TO-15 120-82-1 1,2,4-TRICHLOROBE NZENE 5.2 u 0.30 5.2 UG/M3 5.2 u EPD-WA-33-041323 TO-15 95-63-6 1,2,4-TRIMETHYLBE NZENE 0.27 J 0.088 0.68 UG/M3 0.27 J EPD-WA-33-041323 TO-15 95-50-1 1,2-DICH LO ROBE NZENE 0.84 u 0.12 0.84 UG/M3 0.84 u EPD-WA-33-041323 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.64 u 0.092 0.64 UG/M3 0.64 u EPD-WA-33-041323 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.68 u 0.11 0.68 UG/M3 0.68 u EPD-WA-33-041323 TO-15 106-99-0 1,3-BUTADIENE 0.31 u 0.070 0.31 UG/M3 0.31 u EPD-WA-33-041323 TO-15 541-73-1 1,3-DICH LO ROBE NZENE 0.84 u 0.16 0.84 UG/M3 0.84 u EPD-WA-33-041323 TO-15 123-91-1 1,4-DIOXANE 0.50 u 0.15 0.50 UG/M3 0.50 u EPD-WA-33-041323 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.42 J 0.15 3.2 UG/M3 0.42 J EPD-WA-33-041323 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.2 J 0.22 2.0 UG/M3 1.2 J EPD-WA-33-041323 TO-15 591-78-6 2-HEXANONE 2.8 u 0.41 2.8 UG/M3 2.8 u EPD-WA-33-041323 TO-15 67-63-0 2-PROPANOL 0.90 J 0.19 6.8 UG/M3 0.90 J EPD-WA-33-041323 TO-15 107-05-1 3-CHLOROPROPENE 2.2 u 0.24 2.2 UG/M3 2.2 u EPD-WA-33-041323 TO-15 622-96-8 4-ETHYLTOLUENE 0.21 J 0.13 0.68 UG/M3 0.21 J EPD-WA-33-041323 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.35 J 0.09 0.57 UG/M3 0.35 J EPD-WA-33-041323 TO-15 67-64-1 ACETONE 10 0.67 6.6 UG/M3 10 Page 8 of 20 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-33-041323 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.72 U 0.11 0.72 UG/M3 0.72 U EPD-WA-33-041323 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.93 U 0.092 0.93 UG/M3 0.93 U EPD-WA-33-041323 TO-15 75-25-2 BROMOFORM 1.4 U 0.14 1.4 UG/M3 1.4 U EPD-WA-33-041323 TO-15 74-83-9 BROMOMETHANE 27 U 0.80 27 UG/M3 27 U EPD-WA-33-041323 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.33 2.2 UG/M3 2.2 U EPD-WA-33-041323 TO-15 108-90-7 CHLOROBENZENE 0.64 U 0.064 0.64 UG/M3 0.64 U EPD-WA-33-041323 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.63 U 0.092 0.63 UG/M3 0.63 U EPD-WA-33-041323 TO-15 98-82-8 CUMENE 0.68 U 0.15 0.68 UG/M3 0.68 U EPD-WA-33-041323 TO-15 110-82-7 CYCLOHEXANE 2.4 U 0.11 2.4 UG/M3 2.4 U EPD-WA-33-041323 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.19 1.2 UG/M3 1.2 U EPD-WA-33-041323 TO-15 64-17-5 ETHANOL 5.4 0.46 5.2 UG/M3 5.4 EPD-WA-33-041323 TO-15 75-69-4 FREON 11 1.0 0.088 0.78 UG/M3 1.0 EPD-WA-33-041323 TO-15 76-13-1 FREON 113 0.47 J 0.16 1.1 UG/M3 0.47 J EPD-WA-33-041323 TO-15 142-82-5 HEPTANE 0.89 J 0.068 2.8 UG/M3 0.89 J EPD-WA-33-041323 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.4 U 0.085 7.4 UG/M3 7.4 u EPD-WA-33-041323 TO-15 110-54-3 HEXANE 1.1 J 0.073 2.4 UG/M3 1.1 J EPD-WA-33-041323 TO-15 75-09-2 METHYLENE CHLORIDE 0.57 J 0.56 0.96 UG/M3 0.96 u EPD-WA-33-041323 TO-15 103-65-1 PROPYLBENZENE 0.68 u 0.11 0.68 UG/M3 0.68 u EPD-WA-33-041323 TO-15 100-42-5 STYRENE 0.59 u 0.14 0.59 UG/M3 0.59 u EPD-WA-33-041323 TO-15 109-99-9 TETRAHYDROFURAN 1.0 J 0.66 2.0 UG/M3 1.0 J EPD-WA-33-041323 TO-15 10061-02-6 TRANS-1,3-DICHLOROPROPENE 0.63 u 0.086 0.63 UG/M3 0.63 u EPD-WA-33-041323 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 u PPBV 0 U,NF EPD-WA-33-041323 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 u PPBV 0 U,NF EPD-WA-33-041323 TO-15 5989-27-5 D-LIMONENE 1.2 NJ PPBV 1.2 NJ EPD-WA-33-041323 TO-15 111-71-7 HEPTANAL 0.76 NJ PPBV 0.76 NJ EPD-WA-33-041323 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.014 0.15 UG/M3 0.15 U EPD-WA-33-041323 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.019 0.19 UG/M3 0.19 U EPD-WA-33-041323 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.022 0.15 UG/M3 0.15 U EPD-WA-33-041323 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.0099 0.11 UG/M3 0.11 U EPD-WA-33-041323 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.055 U 0.015 0.055 UG/M3 0.055 U EPD-WA-33-041323 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.21 U 0.14 0.21 UG/M3 0.21 U EPD-WA-33-041323 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.054 J 0.032 0.11 UG/M3 0.054 J EPD-WA-33-041323 TO-15 SIM 106-46-7 1,4-DICH LO ROBE NZENE 0.17 u 0.13 0.17 UG/M3 0.17 u EPD-WA-33-041323 TO-15 SIM 71-43-2 BENZENE 0.48 0.027 0.22 UG/M3 0.48 EPD-WA-33-041323 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.40 0.048 0.17 UG/M3 0.40 EPD-WA-33-041323 TO-15 SIM 75-00-3 CHLOROETHANE 0.035 J 0.0078 0.18 UG/M3 0.035 J Page 9 of 20 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304250 Sample ID Method CAS_No Analyte Lab_Result Lab_Qual MDL RL Units Val_Result Val_Qual EPD-WA-33-041323 TO-15 SIM 67-66-3 CHLOROFORM 0.076 J 0.013 0.14 UG/M3 0.076 J EPD-WA-33-041323 TO-15 SIM 74-87-3 CHLOROMETHANE 0.68 J 0.22 1.4 UG/M3 0.68 J EPD-WA-33-041323 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.030 0.11 UG/M3 0.11 U EPD-WA-33-041323 TO-15 SIM 100-41-4 ETHYL BENZENE 0.16 0.018 0.12 UG/M3 0.16 EPD-WA-33-041323 TO-15 SIM 76-14-2 FREON 114 0.10 J 0.010 0.19 UG/M3 0.10 J EPD-WA-33-041323 TO-15 SIM 75-71-8 FREON 12 1.8 0.027 0.34 UG/M3 1.8 EPD-WA-33-041323 TO-15 SIM 179601-23-1 M,P-XYLENE 0.56 0.031 0.24 UG/M3 0.56 EPD-WA-33-041323 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.50 U 0.018 0.5 UG/M3 0.50 u EPD-WA-33-041323 TO-15 SIM 91-20-3 NAPHTHALENE 0.17 J 0.046 0.36 UG/M3 0.36 u EPD-WA-33-041323 TO-15 SIM 95-47-6 O-XYLENE 0.25 0.023 0.12 UG/M3 0.25 EPD-WA-33-041323 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.083 J 0.013 0.19 UG/M3 0.19 u EPD-WA-33-041323 TO-15 SIM 108-88-3 TOLUENE 1.2 0.016 0.26 UG/M3 1.2 EPD-WA-33-041323 TO-15 SIM 156-60-5 TRANS-1,2-DICHLOROETHENE 0.55 U 0.025 0.55 UG/M3 0.55 u EPD-WA-33-041323 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.15 U 0.028 0.15 UG/M3 0.15 u EPD-WA-33-041323 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.13 0.014 0.036 UG/M3 0.13 Page 10 of 20 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Site Name E Palestine Site - ER TO/TOLIN No. 68HE0520F0032/0001EB201 Document Tracking No. 1787c Laboratory Report No. 2304258 Laboratory Eurofins Air Toxics. LLC. Folsom. CA Analyses Volatile organic compounds (VOCs) by E 'A Method TO-15 in scan and selected ion monitoring (SIM) modes Sam pies and Matrix Four air samples Collection Date(s) 04/13/2023 Field Duplicate Pairs None Field QC Blanks None INTRODUCTION This checklist summarizes the Stage 2A validation performed on the subject laboratory report, in accordance with the U.S. Environmental Protection Agency (EPA) Guidance for Labeling Externally Validated Laboratory Analytical Data for Superfund Use (January 2009). Analytical data were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan, Superfund Technical Assessment and Response Team (START V), EPA Region 5, Revision 4 (August 2022) and the EPA National Functional Guidelines (NFG) for Organic Superfund Methods Data Review (November 2020). OVERALL EVALUATION No rejection of results was required for this data package. The results may be used as qualified based on the findings of this validation effort. Data completeness: Within Criteria Exceedance/Notes N Laboratory control sanip 1 e/laboratory control sample duplicate relative percent differences (RPD) were not provided in the Level 11 laboratory report. The lab provided the RPDs separately. No qualifications were applied. Samples EPD-DW-C-041323, EPD-WA-06-041323, EPD-WA-01-041323. and EPD-WA-04-041323 were not received on 4/14/2023 despite notation on the chain of custody (COC). They were subsequently received on 4/15/2023 and analyzed in this report. Samples EPD-lJW-G-041323. EPD-WA-02-041323. EPD-WA-03-041323. EPD-WA-05-041323. and EPD-WA-33-041323 on the COC were analyzed and reported in SDG 2305250. TETRA TECH Page 1 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Sample preservation, receipt, and holding times: Within Criteria Exceedance/Notes N The canister receipt vacuum/pressures values in the laboratory report were recorded as positive values. The laboratory was contacted and confirmed that the all values are negative, even though the minus signs were missing, and that the laboratory used the following convention for recording Summa canister vacuums and pressures: vacuums are recorded as positive values using the unit of inches of mercury ("Hg), and positive pressures are recorded using the unit pounds per square inch (psi). No qualifications were applied. Method blanks: Within Criteria Exceedance/Notes N TO-15 SIM (2304258-1 OB): 1.4-Dichlorobenzene was detected in the method blank at levels between the method detection limit (MDL) and repoting limit (RL). The associated field sample results for 1.4-dichlorobezene were all nondetect. therefore no qualifications were applied. TO-15 scan (2305258-10C): Carbon disulfide was detected in the method blank at levels between the MDL and RL. The carbon disulfide result in EPD-WA-01-041323 and EPD-WA-04-041323 were qualified as not detected (flagged U) at the RL. Field blanks: Within Criteria Exceedance/Notes NA Surrogates and labeled compounds: Within Criteria Exceedance/Notes Y TETRA TECH Page 2 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT MS/MSDs: Within Criteria Exceedance/Notes NA Laboratory duplicates: Within Criteria Exceedance/Notes NA Field duplicates: Within Criteria Exceedance/Notes NA LCSs/LCSDs: Within Criteria Exceedance/Notes N TO-15 scan (2304258-12A and 2304258-12AA): The LCSD percent recovery was above QC limits for 1.2.4-trichlorobenzene. The average LCS and LCSD percent recoveries were within acceptance limits, therefore, no qualification was necessary. TO-15 SIM (2304258-12D and 2304258-12DD): The LCS and LCSD percent recoveries were below QC limits for carbon tetrachloride. The carbon tetrachloride results in EPD-WA-01-041323 and EPD-WA-04-041323 were qualified as estimated with a possible low bias (flagged J-). Sample dilutions: Within Criteria Exceedance/Notes Y Canister dilution factor for: • EPD-DW-C-041323 was 1.42. • EPD-WA-01-041323 was 1.40. • EPD-WA-04-041323 was 1.42. • EPD-WA-06-041323 was 1.50. H , TETRA TECH Page 3 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Re-extraction and reanalysis: Within Criteria Exceedance/Notes NA MDLs/RLs: Within Criteria Exceedance/Notes Y Detections between the MDL and RL were reported and qualified as estimated (flagged J) by the laboratory. Tentatively identified compounds: Within Criteria Exceedance/Notes Y Tentatively identified compounds (TICs) were detected in all samples. The known TICs were qualified as tentatively identified (flagged NJ). The unknown TICs were qualified as estimated (flagged J). 2-Ethyl-l-hexanol in all samples and butyl acrylate in all samples, except EPD-WA-01-041323, were reported as not detected and qualified as manually searched for. but not found in the sample (flagged U.NF). Other [Continuing Calibration!: Within Criteria Exceedance/Notes N CCV (2304258-11A) had low percent recovery of ethanol. Ethanol result in EPD-DW-C-041323 and EPD-WA-06-041323 were qualified as estimated (flagged J). CCV (2304258-11D) had low percent recovery of naphthalene. Naphthalene result in EPD-WA-01-041323 and EPD-WA-04-041323 were qualified as estimated (flagged J). TETRA TECH Page 4 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Overall Qualifications: See results summary pages attached for changes to the laboratory qualifiers based upon this validation. The follow ing is a list of qualifiers and definitions that may be used for the validation of this data package: J The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample. J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high. J- The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased low. NF The tentatively identified compound was manually searched for but was not found in the sample. NJ The analysis indicates the presence of an analyte that has been "tentatively identified" and the associated value is the approximate concentration of the analvte in the sample. R The sample result is rejected as unusable due to serious deficiencies in one or more quality control criteria. The analyte may or may not be present in the sample. U The analyte was analyzed for. but was not detected at or above the associated value (reporting limit). UJ The analyte was analyzed for. but was not detected at or above the associated value (reporting limit), which is considered approximate due to deficiencies in one or more quality control criteria. TETRA TECH Page 5 of 5 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304258 Sample ID Method CAS_No Analyte La b_Result Lab_Qual MDL RL Units VAL_Result VALJ EPD-DW-C-041323 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.3 U 1.3 5.3 UG/M3 5.3 U EPD-DW-C-041323 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.27 J 0.21 0.70 UG/M3 0.27 J EPD-DW-C-041323 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.85 U 0.10 0.85 UG/M3 0.85 U EPD-DW-C-041323 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.66 U 0.11 0.66 UG/M3 0.66 u EPD-DW-C-041323 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.70 u 0.14 0.70 UG/M3 0.70 u EPD-DW-C-041323 TO-15 106-99-0 1,3-BUTADIENE 0.31 u 0.030 0.31 UG/M3 0.31 u EPD-DW-C-041323 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.85 u 0.097 0.85 UG/M3 0.85 u EPD-DW-C-041323 TO-15 123-91-1 1,4-DIOXANE 0.51 u 0.081 0.51 UG/M3 0.51 u EPD-DW-C-041323 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.3 u 0.54 3.3 UG/M3 3.3 u EPD-DW-C-041323 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.41 J 0.32 2.1 UG/M3 0.41 J EPD-DW-C-041323 TO-15 591-78-6 2-HEXANONE 2.9 u 0.45 2.9 UG/M3 2.9 u EPD-DW-C-041323 TO-15 67-63-0 2-PROPANOL 7.0 u 0.39 7.0 UG/M3 7.0 u EPD-DW-C-041323 TO-15 107-05-1 3-CHLOROPROPENE 2.2 u 0.44 2.2 UG/M3 2.2 u EPD-DW-C-041323 TO-15 622-96-8 4-ETHYLTOLUENE 0.25 J 0.14 0.70 UG/M3 0.25 J EPD-DW-C-041323 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.35 J 0.21 0.58 UG/M3 0.35 J EPD-DW-C-041323 TO-15 67-64-1 ACETONE 5.4 J 0.77 6.7 UG/M3 5.4 J EPD-DW-C-041323 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.74 u 0.14 0.74 UG/M3 0.74 u EPD-DW-C-041323 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.95 u 0.15 0.95 UG/M3 0.95 u EPD-DW-C-041323 TO-15 75-25-2 BROMOFORM 1.5 u 0.41 1.5 UG/M3 1.5 u EPD-DW-C-041323 TO-15 74-83-9 BROMOMETHANE 28 u 0.79 28 UG/M3 28 u EPD-DW-C-041323 TO-15 75-15-0 CARBON DISULFIDE 1.8 J 0.63 2.2 UG/M3 1.8 J EPD-DW-C-041323 TO-15 108-90-7 CHLOROBENZENE 0.65 u 0.051 0.65 UG/M3 0.65 u EPD-DW-C-041323 TO-15 10061-01-5 CIS-1,3-DICHLOROPROPENE 0.64 u 0.12 0.64 UG/M3 0.64 u EPD-DW-C-041323 TO-15 98-82-8 CUMENE 0.70 u 0.088 0.70 UG/M3 0.70 u EPD-DW-C-041323 TO-15 110-82-7 CYCLOHEXANE 2.4 u 0.24 2.4 UG/M3 2.4 u EPD-DW-C-041323 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 u 0.21 1.2 UG/M3 1.2 u EPD-DW-C-041323 TO-15 64-17-5 ETHANOL 3.6 J 0.65 5.4 UG/M3 3.6 J EPD-DW-C-041323 TO-15 75-69-4 FREON 11 1.2 0.063 0.80 UG/M3 1.2 EPD-DW-C-041323 TO-15 76-13-1 FREON 113 0.50 J 0.19 1.1 UG/M3 0.50 J EPD-DW-C-041323 TO-15 142-82-5 HEPTANE 2.9 u 0.36 2.9 UG/M3 2.9 u EPD-DW-C-041323 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.6 u 0.76 7.6 UG/M3 7.6 u EPD-DW-C-041323 TO-15 110-54-3 HEXANE 2.5 u 0.39 2.5 UG/M3 2.5 u EPD-DW-C-041323 TO-15 75-09-2 METHYLENE CHLORIDE 0.64 J 0.56 0.99 UG/M3 0.64 J EPD-DW-C-041323 TO-15 103-65-1 PROPYLBENZENE 0.70 u 0.16 0.70 UG/M3 0.70 u EPD-DW-C-041323 TO-15 100-42-5 STYRENE 0.60 u 0.088 0.60 UG/M3 0.60 u EPD-DW-C-041323 TO-15 109-99-9 TETRAHYDROFURAN 0.76 J 0.34 2.1 UG/M3 0.76 J Page 1 of 17 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304258 Sample ID Method CAS_No Analyte La b_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-DW-C-041323 TO-15 10061-02-6 TRANS-1,3-DICHLOROPROPENE 0.64 U 0.16 0.64 UG/M3 0.64 U EPD-DW-C-041323 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U 0 U,NF EPD-DW-C-041323 TO-15 106-97-8 BUTANE 1.5 NJ 1.5 NJ EPD-DW-C-041323 TO-15 78-78-4 BUTANE, 2-METHYL- 1.2 NJ 1.2 NJ EPD-DW-C-041323 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U 0 U,NF EPD-DW-C-041323 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.013 0.15 UG/M3 0.15 U EPD-DW-C-041323 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.047 0.19 UG/M3 0.19 U EPD-DW-C-041323 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.018 0.15 UG/M3 0.15 U EPD-DW-C-041323 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.011 0.11 UG/M3 0.11 U EPD-DW-C-041323 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 U 0.014 0.056 UG/M3 0.056 U EPD-DW-C-041323 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.030 0.22 UG/M3 0.22 U EPD-DW-C-041323 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.078 J 0.013 0.11 UG/M3 0.078 J EPD-DW-C-041323 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.073 0.17 UG/M3 0.17 u EPD-DW-C-041323 TO-15 SIM 71-43-2 BENZENE 0.66 0.022 0.23 UG/M3 0.66 EPD-DW-C-041323 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.49 0.013 0.18 UG/M3 0.49 EPD-DW-C-041323 TO-15 SIM 75-00-3 CHLOROETHANE 0.020 J 0.010 0.19 UG/M3 0.020 J EPD-DW-C-041323 TO-15 SIM 67-66-3 CHLOROFORM 0.075 J 0.015 0.14 UG/M3 0.075 J EPD-DW-C-041323 TO-15 SIM 74-87-3 CHLOROMETHANE 0.80 J 0.18 1.5 UG/M3 0.80 J EPD-DW-C-041323 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 u 0.015 0.11 UG/M3 0.11 u EPD-DW-C-041323 TO-15 SIM 100-41-4 ETHYL BENZENE 0.14 0.018 0.12 UG/M3 0.14 EPD-DW-C-041323 TO-15 SIM 76-14-2 FREON 114 0.11 J 0.022 0.20 UG/M3 0.11 J EPD-DW-C-041323 TO-15 SIM 75-71-8 FREON 12 2.2 0.014 0.35 UG/M3 2.2 EPD-DW-C-041323 TO-15 SIM 179601-23-M,P-XYLENE 0.49 0.024 0.25 UG/M3 0.49 EPD-DW-C-041323 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.51 u 0.0095 0.51 UG/M3 0.51 u EPD-DW-C-041323 TO-15 SIM 91-20-3 NAPHTHALENE 0.16 J 0.11 0.37 UG/M3 0.16 J EPD-DW-C-041323 TO-15 SIM 95-47-6 O-XYLENE 0.21 0.021 0.12 UG/M3 0.21 EPD-DW-C-041323 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.093 J 0.028 0.19 UG/M3 0.093 J EPD-DW-C-041323 TO-15 SIM 108-88-3 TOLUENE 1.6 0.019 0.27 UG/M3 1.6 EPD-DW-C-041323 TO-15 SIM 156-60-5 TRANS-1,2-DICHLOROETHENE 0.56 u 0.0084 0.56 UG/M3 0.56 u EPD-DW-C-041323 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.060 J 0.025 0.15 UG/M3 0.060 J EPD-DW-C-041323 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.36 0.010 0.036 UG/M3 0.36 EPD-WA-01-041323 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.2 U 0.68 5.2 UG/M3 5.2 U EPD-WA-01-041323 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.51 J 0.16 0.69 UG/M3 0.51 J EPD-WA-01-041323 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.84 U 0.18 0.84 UG/M3 0.84 U EPD-WA-01-041323 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.65 U 0.23 0.65 UG/M3 0.65 U EPD-WA-01-041323 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.69 U 0.21 0.69 UG/M3 0.69 U Page 2 of 17 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304258 Sample ID Method CAS_No Analyte La b_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-01-041323 TO-15 106-99-0 1,3-BUTADIENE 0.31 U 0.13 0.31 UG/M3 0.31 U EPD-WA-01-041323 TO-15 541-73-1 1,3-DICHLORO BENZENE 0.84 U 0.18 0.84 UG/M3 0.84 U EPD-WA-01-041323 TO-15 123-91-1 1,4-DIOXANE 0.50 U 0.28 0.50 UG/M3 0.50 U EPD-WA-01-041323 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 1.1 J 0.46 3.3 UG/M3 1.1 J EPD-WA-01-041323 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.83 J 0.46 2.1 UG/M3 0.83 J EPD-WA-01-041323 TO-15 591-78-6 2-HEXANONE 2.9 U 0.58 2.9 UG/M3 2.9 U EPD-WA-01-041323 TO-15 67-63-0 2-PROPANOL 0.59 J 0.37 6.9 UG/M3 0.59 J EPD-WA-01-041323 TO-15 107-05-1 3-CHLOROPROPENE 2.2 u 0.48 2.2 UG/M3 2.2 u EPD-WA-01-041323 TO-15 622-96-8 4-ETHYLTOLUENE 0.42 J 0.16 0.69 UG/M3 0.42 J EPD-WA-01-041323 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.57 u 0.12 0.57 UG/M3 0.57 u EPD-WA-01-041323 TO-15 67-64-1 ACETONE 9.1 0.94 6.6 UG/M3 9.1 EPD-WA-01-041323 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.72 u 0.38 0.72 UG/M3 0.72 u EPD-WA-01-041323 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.94 u 0.20 0.94 UG/M3 0.94 u EPD-WA-01-041323 TO-15 75-25-2 BROMOFORM 1.4 u 0.33 1.4 UG/M3 1.4 u EPD-WA-01-041323 TO-15 74-83-9 BROMOMETHANE 27 u 2.1 27 UG/M3 27 u EPD-WA-01-041323 TO-15 75-15-0 CARBON DISULFIDE 0.78 J 0.29 2.2 UG/M3 2.2 u EPD-WA-01-041323 TO-15 108-90-7 CHLOROBENZENE 0.64 u 0.18 0.64 UG/M3 0.64 u EPD-WA-01-041323 TO-15 10061-01-5 CIS-1,3-DICHLOROPROPENE 0.64 u 0.19 0.64 UG/M3 0.64 u EPD-WA-01-041323 TO-15 98-82-8 CUMENE 0.69 u 0.10 0.69 UG/M3 0.69 u EPD-WA-01-041323 TO-15 110-82-7 CYCLOHEXANE 2.4 u 0.25 2.4 UG/M3 2.4 u EPD-WA-01-041323 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 u 0.24 1.2 UG/M3 1.2 u EPD-WA-01-041323 TO-15 64-17-5 ETHANOL 11 1.4 5.3 UG/M3 11 EPD-WA-01-041323 TO-15 75-69-4 FREON 11 0.99 0.12 0.79 UG/M3 0.99 EPD-WA-01-041323 TO-15 76-13-1 FREON 113 0.39 J 0.13 1.1 UG/M3 0.39 J EPD-WA-01-041323 TO-15 142-82-5 HEPTANE 1.0 J 0.58 2.9 UG/M3 1.0 J EPD-WA-01-041323 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.5 u 0.63 7.5 UG/M3 7.5 u EPD-WA-01-041323 TO-15 110-54-3 HEXANE 2.8 0.41 2.5 UG/M3 2.8 EPD-WA-01-041323 TO-15 75-09-2 METHYLENE CHLORIDE 0.57 J 0.37 0.97 UG/M3 0.57 J EPD-WA-01-041323 TO-15 103-65-1 PROPYLBENZENE 0.69 u 0.25 0.69 UG/M3 0.69 u EPD-WA-01-041323 TO-15 100-42-5 STYRENE 0.60 u 0.11 0.60 UG/M3 0.60 u EPD-WA-01-041323 TO-15 109-99-9 TETRAHYDROFURAN 1.5 J 1.3 2.1 UG/M3 1.5 J EPD-WA-01-041323 TO-15 10061-02-6TRANS-1,3-DICHLOROPROPENE 0.64 u 0.17 0.64 UG/M3 0.64 u EPD-WA-01-041323 TO-15 137-32-6 1-BUTANOL, 2-METHYL- 1.8 NJ 1.8 NJ EPD-WA-01-041323 TO-15 563-45-1 1-BUTENE, 3-METHYL- 1.2 NJ 1.2 NJ EPD-WA-01-041323 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U 0 U,NF EPD-WA-01-041323 TO-15 141-32-2 2-PROPENOIC ACID, BUTYL ESTER 1.2 NJ 1.2 NJ Page 3 of 17 ------- Sample ID Method CAS_No E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304258 Analyte La b_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-01-041323 TO-15 106-97-8 BUTANE 18 NJ 18 NJ EPD-WA-01-041323 TO-15 78-78-4 BUTANE, 2-METHYL- 15 NJ 15 NJ EPD-WA-01-041323 TO-15 589-34-4 HEXANE, 3-METHYL- 0.74 NJ 0.74 NJ EPD-WA-01-041323 TO-15 75-28-5 ISOBUTANE 4.4 NJ 4.4 NJ EPD-WA-01-041323 TO-15 109-66-0 PENTANE 6.4 NJ 6.4 NJ EPD-WA-01-041323 TO-15 107-83-5 PENTANE, 2-METHYL- 3.0 NJ 3.0 NJ EPD-WA-01-041323 TO-15 NA UNKNOWN TIC 1.3 J 1.3 J EPD-WA-01-041323 TO-15 NA UNKNOWN TIC 1.1 J 1.1 J EPD-WA-01-041323 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.021 0.15 UG/M3 0.15 U EPD-WA-01-041323 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.038 J 0.032 0.19 UG/M3 0.038 J EPD-WA-01-041323 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 u 0.030 0.15 UG/M3 0.15 u EPD-WA-01-041323 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 u 0.014 0.11 UG/M3 0.11 u EPD-WA-01-041323 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 u 0.028 0.056 UG/M3 0.056 u EPD-WA-01-041323 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 u 0.048 0.22 UG/M3 0.22 u EPD-WA-01-041323 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.071 J 0.022 0.11 UG/M3 0.071 J EPD-WA-01-041323 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 u 0.092 0.17 UG/M3 0.17 u EPD-WA-01-041323 TO-15 SIM 71-43-2 BENZENE 1.6 0.043 0.22 UG/M3 1.6 EPD-WA-01-041323 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.36 0.033 0.18 UG/M3 0.36 J- EPD-WA-01-041323 TO-15 SIM 75-00-3 CHLOROETHANE 0.18 u 0.11 0.18 UG/M3 0.18 u EPD-WA-01-041323 TO-15 SIM 67-66-3 CHLOROFORM 0.093 J 0.022 0.14 UG/M3 0.093 J EPD-WA-01-041323 TO-15 SIM 74-87-3 CHLOROMETHANE 0.96 J 0.14 1.4 UG/M3 0.96 J EPD-WA-01-041323 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 u 0.024 0.11 UG/M3 0.11 u EPD-WA-01-041323 TO-15 SIM 100-41-4 ETHYL BENZENE 0.39 0.0086 0.12 UG/M3 0.39 EPD-WA-01-041323 TO-15 SIM 76-14-2 FREON 114 0.11 J 0.028 0.20 UG/M3 0.11 J EPD-WA-01-041323 TO-15 SIM 75-71-8 FREON 12 1.9 0.020 0.35 UG/M3 1.9 EPD-WA-01-041323 TO-15 SIM 179601-23-M,P-XYLENE 1.4 0.018 0.24 UG/M3 1.4 EPD-WA-01-041323 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.50 u 0.019 0.50 UG/M3 0.50 u EPD-WA-01-041323 TO-15 SIM 91-20-3 NAPHTHALENE 0.49 0.068 0.37 UG/M3 0.49 J EPD-WA-01-041323 TO-15 SIM 95-47-6 O-XYLENE 0.60 0.015 0.12 UG/M3 0.60 EPD-WA-01-041323 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.096 J 0.0073 0.19 UG/M3 0.096 J EPD-WA-01-041323 TO-15 SIM 108-88-3 TOLUENE 3.2 0.018 0.26 UG/M3 3.2 EPD-WA-01-041323 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.26 J 0.017 0.56 UG/M3 0.26 J EPD-WA-01-041323 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.015 J 0.013 0.15 UG/M3 0.015 J EPD-WA-01-041323 TO-15 SIM 75-01-4 VINYL CHLORIDE 2.1 0.026 0.036 UG/M3 2.1 EPD-WA-04-041323 EPD-WA-04-041323 TO-15 TO-15 120-82-1 95-63-6 1,2,4-TRICHLOROBENZENE 1,2,4-TRIMETHYLBENZENE Page 4 of 17 5.3 U 0.51 J 0.70 0.17 5.3 0.70 UG/M3 UG/M3 5.3 U 0.51 J ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304258 Sample ID Method CAS_No Analyte La b_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-041323 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.85 U 0.18 0.85 UG/M3 0.85 U EPD-WA-04-041323 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.66 U 0.23 0.66 UG/M3 0.66 U EPD-WA-04-041323 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.70 U 0.22 0.70 UG/M3 0.70 U EPD-WA-04-041323 TO-15 106-99-0 1,3-BUTADIENE 0.14 J 0.13 0.31 UG/M3 0.14 J EPD-WA-04-041323 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.85 U 0.18 0.85 UG/M3 0.85 U EPD-WA-04-041323 TO-15 123-91-1 1,4-DIOXANE 0.51 u 0.28 0.51 UG/M3 0.51 u EPD-WA-04-041323 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.97 J 0.47 3.3 UG/M3 0.97 J EPD-WA-04-041323 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.2 J 0.47 2.1 UG/M3 1.2 J EPD-WA-04-041323 TO-15 591-78-6 2-HEXANONE 2.9 u 0.59 2.9 UG/M3 2.9 u EPD-WA-04-041323 TO-15 67-63-0 2-PROPANOL 1.1 J 0.38 7.0 UG/M3 1.1 J EPD-WA-04-041323 TO-15 107-05-1 3-CHLOROPROPENE 2.2 u 0.48 2.2 UG/M3 2.2 u EPD-WA-04-041323 TO-15 622-96-8 4-ETHYLTO LUENE 0.55 J 0.16 0.70 UG/M3 0.55 J EPD-WA-04-041323 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.58 u 0.12 0.58 UG/M3 0.58 u EPD-WA-04-041323 TO-15 67-64-1 ACETONE 15 0.95 6.7 UG/M3 15 EPD-WA-04-041323 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.74 u 0.39 0.74 UG/M3 0.74 u EPD-WA-04-041323 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.95 u 0.20 0.95 UG/M3 0.95 u EPD-WA-04-041323 TO-15 75-25-2 BROMOFORM 1.5 u 0.33 1.5 UG/M3 1.5 u EPD-WA-04-041323 TO-15 74-83-9 BROMOMETHANE 28 u 2.1 28 UG/M3 28 u EPD-WA-04-041323 TO-15 75-15-0 CARBON DISULFIDE 0.80 J 0.29 2.2 UG/M3 2.2 u EPD-WA-04-041323 TO-15 108-90-7 CHLOROBENZENE 0.65 u 0.18 0.65 UG/M3 0.65 u EPD-WA-04-041323 TO-15 10061-01-5 CIS-1,3-DICHLOROPROPENE 0.64 u 0.20 0.64 UG/M3 0.64 u EPD-WA-04-041323 TO-15 98-82-8 CUMENE 0.70 u 0.10 0.70 UG/M3 0.70 u EPD-WA-04-041323 TO-15 110-82-7 CYCLOHEXANE 2.4 u 0.26 2.4 UG/M3 2.4 u EPD-WA-04-041323 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 u 0.25 1.2 UG/M3 1.2 u EPD-WA-04-041323 TO-15 64-17-5 ETHANOL 8.6 1.4 5.4 UG/M3 8.6 EPD-WA-04-041323 TO-15 75-69-4 FREON 11 0.99 0.12 0.80 UG/M3 0.99 EPD-WA-04-041323 TO-15 76-13-1 FREON 113 0.41 J 0.14 1.1 UG/M3 0.41 J EPD-WA-04-041323 TO-15 142-82-5 HEPTANE 1.2 J 0.59 2.9 UG/M3 1.2 J EPD-WA-04-041323 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.6 u 0.64 7.6 UG/M3 7.6 u EPD-WA-04-041323 TO-15 110-54-3 HEXANE 2.0 J 0.42 2.5 UG/M3 2.0 J EPD-WA-04-041323 TO-15 75-09-2 METHYLENE CHLORIDE 0.57 J 0.37 0.99 UG/M3 0.57 J EPD-WA-04-041323 TO-15 103-65-1 PROPYLBENZENE 0.70 u 0.26 0.70 UG/M3 0.70 u EPD-WA-04-041323 TO-15 100-42-5 STYRENE 0.60 u 0.11 0.60 UG/M3 0.60 u EPD-WA-04-041323 TO-15 109-99-9 TETRAHYDROFURAN 2.1 u 1.3 2.1 UG/M3 2.1 u EPD-WA-04-041323 TO-15 10061-02-6TRANS-1,3-DICHLOROPROPENE 0.64 u 0.17 0.64 UG/M3 0.64 u EPD-WA-04-041323 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 u 0 U,NF Page 5 of 17 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304258 Sample ID Method CAS_No Analyte La b_Result Lab_Qual MDL RL Units VAL_Result VALJ EPD-WA-04-041323 TO-15 106-97-8 BUTANE 9.2 NJ 9.2 NJ EPD-WA-04-041323 TO-15 78-78-4 BUTANE, 2-METHYL- 8.6 NJ 8.6 NJ EPD-WA-04-041323 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U 0 U,NF EPD-WA-04-041323 TO-15 921-47-1 HEXANE, 2,3,4-TRIMETHYL- 1.5 NJ 1.5 NJ EPD-WA-04-041323 TO-15 75-28-5 ISOBUTANE 3.3 NJ 3.3 NJ EPD-WA-04-041323 TO-15 109-66-0 PENTANE 4.4 NJ 4.4 NJ EPD-WA-04-041323 TO-15 107-83-5 PENTANE, 2-METHYL- 2.5 NJ 2.5 NJ EPD-WA-04-041323 TO-15 96-14-0 PENTANE, 3-METHYL- 2.0 NJ 2.0 NJ EPD-WA-04-041323 TO-15 NA UNKNOWN TIC 2.8 J 2.8 J EPD-WA-04-041323 TO-15 NA UNKNOWN TIC 1.3 J 1.3 J EPD-WA-04-041323 TO-15 NA UNKNOWN TIC 1.4 J 1.4 J EPD-WA-04-041323 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.021 0.15 UG/M3 0.15 U EPD-WA-04-041323 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.033 0.19 UG/M3 0.19 U EPD-WA-04-041323 TO-15 SIM 79-00-5 1,1,2-TRICHLORO ETHANE 0.15 u 0.031 0.15 UG/M3 0.15 u EPD-WA-04-041323 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 u 0.014 0.11 UG/M3 0.11 u EPD-WA-04-041323 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 u 0.028 0.056 UG/M3 0.056 u EPD-WA-04-041323 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 u 0.049 0.22 UG/M3 0.22 u EPD-WA-04-041323 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.070 J 0.022 0.11 UG/M3 0.070 J EPD-WA-04-041323 TO-15 SIM 106-46-7 1,4-DICH LO ROBE NZENE 0.17 u 0.093 0.17 UG/M3 0.17 u EPD-WA-04-041323 TO-15 SIM 71-43-2 BENZENE 1.8 0.044 0.23 UG/M3 1.8 EPD-WA-04-041323 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.36 0.033 0.18 UG/M3 0.36 J- EPD-WA-04-041323 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 u 0.11 0.19 UG/M3 0.19 u EPD-WA-04-041323 TO-15 SIM 67-66-3 CHLOROFORM 0.084 J 0.022 0.14 UG/M3 0.084 J EPD-WA-04-041323 TO-15 SIM 74-87-3 CHLOROMETHANE 0.94 J 0.14 1.5 UG/M3 0.94 J EPD-WA-04-041323 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 u 0.024 0.11 UG/M3 0.11 u EPD-WA-04-041323 TO-15 SIM 100-41-4 ETHYL BENZENE 0.52 0.0088 0.12 UG/M3 0.52 EPD-WA-04-041323 TO-15 SIM 76-14-2 FREON 114 0.097 J 0.028 0.20 UG/M3 0.097 J EPD-WA-04-041323 TO-15 SIM 75-71-8 FREON 12 1.8 0.020 0.35 UG/M3 1.8 EPD-WA-04-041323 TO-15 SIM 179601-23-M,P-XYLENE 1.9 0.018 0.25 UG/M3 1.9 EPD-WA-04-041323 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.51 u 0.019 0.51 UG/M3 0.51 u EPD-WA-04-041323 TO-15 SIM 91-20-3 NAPHTHALENE 0.34 J 0.070 0.37 UG/M3 0.34 J EPD-WA-04-041323 TO-15 SIM 95-47-6 O-XYLENE 0.75 0.015 0.12 UG/M3 0.75 EPD-WA-04-041323 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.082 J 0.0074 0.19 UG/M3 0.082 J EPD-WA-04-041323 TO-15 SIM 108-88-3 TOLUENE 3.4 0.018 0.27 UG/M3 3.4 EPD-WA-04-041323 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.19 J 0.017 0.56 UG/M3 0.19 J EPD-WA-04-041323 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.15 u 0.014 0.15 UG/M3 0.15 u Page 6 of 17 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304258 Sample ID Method CAS_No Analyte La b_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-041323 TO-15 SIM 75-01-4 VINYL CHLORIDE 1.6 0.026 0.036 UG/M3 1.6 EPD-WA-06-041323 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.6 U 1.4 5.6 UG/M3 5.6 U EPD-WA-06-041323 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.56 J 0.22 0.74 UG/M3 0.56 J EPD-WA-06-041323 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.90 U 0.11 0.90 UG/M3 0.90 U EPD-WA-06-041323 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.69 U 0.11 0.69 UG/M3 0.69 U EPD-WA-06-041323 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.21 J 0.15 0.74 UG/M3 0.21 J EPD-WA-06-041323 TO-15 106-99-0 1,3-BUTADIENE 0.33 u 0.032 0.33 UG/M3 0.33 u EPD-WA-06-041323 TO-15 541-73-1 1,3-D ICHLORO BENZENE 0.90 u 0.10 0.90 UG/M3 0.90 u EPD-WA-06-041323 TO-15 123-91-1 1,4-DIOXANE 0.54 u 0.086 0.54 UG/M3 0.54 u EPD-WA-06-041323 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.5 u 0.56 3.5 UG/M3 3.5 u EPD-WA-06-041323 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.42 J 0.34 2.2 UG/M3 0.42 J EPD-WA-06-041323 TO-15 591-78-6 2-HEXANONE 3.1 u 0.48 3.1 UG/M3 3.1 u EPD-WA-06-041323 TO-15 67-63-0 2-PROPANOL 7.4 u 0.42 7.4 UG/M3 7.4 u EPD-WA-06-041323 TO-15 107-05-1 3-CHLOROPROPENE 2.3 u 0.47 2.3 UG/M3 2.3 u EPD-WA-06-041323 TO-15 622-96-8 4-ETHYLTOLUENE 0.38 J 0.14 0.74 UG/M3 0.38 J EPD-WA-06-041323 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.61 u 0.22 0.61 UG/M3 0.61 u EPD-WA-06-041323 TO-15 67-64-1 ACETONE 5.7 J 0.82 7.1 UG/M3 5.7 J EPD-WA-06-041323 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.78 u 0.14 0.78 UG/M3 0.78 u EPD-WA-06-041323 TO-15 75-27-4 BROMODICHLOROM ETHANE 1.0 u 0.16 1.0 UG/M3 1.0 u EPD-WA-06-041323 TO-15 75-25-2 BROMOFORM 1.6 u 0.43 1.6 UG/M3 1.6 u EPD-WA-06-041323 TO-15 74-83-9 BROMOMETHANE 29 u 0.84 29 UG/M3 29 u EPD-WA-06-041323 TO-15 75-15-0 CARBON DISULFIDE 2.3 u 0.67 2.3 UG/M3 2.3 u EPD-WA-06-041323 TO-15 108-90-7 CHLOROBENZENE 0.69 u 0.054 0.69 UG/M3 0.69 u EPD-WA-06-041323 TO-15 10061-01-5 CIS-1,3-DICHLOROPROPENE 0.68 u 0.13 0.68 UG/M3 0.68 u EPD-WA-06-041323 TO-15 98-82-8 CUMENE 0.74 u 0.093 0.74 UG/M3 0.74 u EPD-WA-06-041323 TO-15 110-82-7 CYCLOHEXANE 2.6 u 0.25 2.6 UG/M3 2.6 u EPD-WA-06-041323 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 u 0.22 1.3 UG/M3 1.3 u EPD-WA-06-041323 TO-15 64-17-5 ETHANOL 10 JO 0.68 5.6 UG/M3 10 J EPD-WA-06-041323 TO-15 75-69-4 FREON 11 1.2 0.066 0.84 UG/M3 1.2 EPD-WA-06-041323 TO-15 76-13-1 FREON 113 0.52 J 0.20 1.1 UG/M3 0.52 J EPD-WA-06-041323 TO-15 142-82-5 HEPTANE 3.1 u 0.38 3.1 UG/M3 3.1 u EPD-WA-06-041323 TO-15 87-68-3 HEXACHLOROBUTADIENE 8.0 u 0.80 8.0 UG/M3 8.0 u EPD-WA-06-041323 TO-15 110-54-3 HEXANE 0.56 J 0.41 2.6 UG/M3 0.56 J EPD-WA-06-041323 TO-15 75-09-2 METHYLENE CHLORIDE 0.69 J 0.59 1.0 UG/M3 0.69 J EPD-WA-06-041323 TO-15 103-65-1 PROPYLBENZENE 0.74 u 0.16 0.74 UG/M3 0.74 u EPD-WA-06-041323 TO-15 100-42-5 STYRENE 0.64 u 0.093 0.64 UG/M3 0.64 u Page 7 of 17 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2304258 Sample ID Method CAS_No Analyte La b_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-06-041323 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.36 2.2 UG/M3 2.2 U EPD-WA-06-041323 TO-15 10061-02-6 TRANS-1,3-DICHLOROPROPENE 0.68 U 0.17 0.68 UG/M3 0.68 U EPD-WA-06-041323 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U 0 U,NF EPD-WA-06-041323 TO-15 106-97-8 BUTANE 1.5 NJ 1.5 NJ EPD-WA-06-041323 TO-15 78-78-4 BUTANE, 2-METHYL- 1.6 NJ 1.6 NJ EPD-WA-06-041323 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U 0 U,NF EPD-WA-06-041323 TO-15 75-28-5 ISOBUTANE 0.87 NJ 0.87 NJ EPD-WA-06-041323 TO-15 109-66-0 PENTANE 0.81 NJ 0.81 NJ EPD-WA-06-041323 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.014 0.16 UG/M3 0.16 U EPD-WA-06-041323 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.20 U 0.050 0.20 UG/M3 0.20 U EPD-WA-06-041323 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.019 0.16 UG/M3 0.16 U EPD-WA-06-041323 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.012 0.12 UG/M3 0.12 U EPD-WA-06-041323 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.015 0.059 UG/M3 0.059 U EPD-WA-06-041323 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.031 0.23 UG/M3 0.23 U EPD-WA-06-041323 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.083 J 0.014 0.12 UG/M3 0.083 J EPD-WA-06-041323 TO-15 SIM 106-46-7 1,4-DICH LO ROBE NZENE 0.18 U 0.077 0.18 UG/M3 0.18 U EPD-WA-06-041323 TO-15 SIM 71-43-2 BENZENE 1.1 0.023 0.24 UG/M3 1.1 EPD-WA-06-041323 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.49 0.013 0.19 UG/M3 0.49 EPD-WA-06-041323 TO-15 SIM 75-00-3 CHLOROETHANE 0.20 u 0.010 0.20 UG/M3 0.20 u EPD-WA-06-041323 TO-15 SIM 67-66-3 CHLOROFORM 0.090 J 0.016 0.15 UG/M3 0.090 J EPD-WA-06-041323 TO-15 SIM 74-87-3 CHLOROMETHANE 0.81 J 0.19 1.5 UG/M3 0.81 J EPD-WA-06-041323 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 u 0.015 0.12 UG/M3 0.12 u EPD-WA-06-041323 TO-15 SIM 100-41-4 ETHYL BENZENE 0.26 0.019 0.13 UG/M3 0.26 EPD-WA-06-041323 TO-15 SIM 76-14-2 FREON 114 0.11 J 0.023 0.21 UG/M3 0.11 J EPD-WA-06-041323 TO-15 SIM 75-71-8 FREON 12 2.2 0.015 0.37 UG/M3 2.2 EPD-WA-06-041323 TO-15 SIM 179601-23-M,P-XYLENE 0.90 0.025 0.26 UG/M3 0.90 EPD-WA-06-041323 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.54 u 0.010 0.54 UG/M3 0.54 u EPD-WA-06-041323 TO-15 SIM 91-20-3 NAPHTHALENE 0.44 0.12 0.39 UG/M3 0.44 EPD-WA-06-041323 TO-15 SIM 95-47-6 O-XYLENE 0.36 0.022 0.13 UG/M3 0.36 EPD-WA-06-041323 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.15 J 0.029 0.20 UG/M3 0.15 J EPD-WA-06-041323 TO-15 SIM 108-88-3 TOLUENE 2.2 0.020 0.28 UG/M3 2.2 EPD-WA-06-041323 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.59 u 0.0089 0.59 UG/M3 0.59 u EPD-WA-06-041323 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 u 0.026 0.16 UG/M3 0.16 u EPD-WA-06-041323 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.13 0.011 0.038 UG/M3 0.13 Page 8 of 17 ------- |