TETRATECH 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 September 26, 2023 Mr. 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. 1993 Dear Mr. Peters: Tetra Tech, Inc. (Tetra Tech) is submitting this data validation report for thirty-six air samples, including four field duplicate samples collected at the E Palestine Site. The samples were collected between June 15 and 19, 2023 and were analyzed for volatile organic compounds (VOCs) by Eurofins Air Toxics of Folsom, California. The final laboratory data package was received on June 21, 2023. Analytical data were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan East Palestine Train Derailment Site East Palestine, Columbiana County, Ohio, Revision 3 (April 2023), 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 these data packages. 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 feel free to contact me. Sincerely, Tom Hahne Quality Reviewer Digitally signed by Tom Hahne Date: 2023.09.26 11:40:34 -05'00' 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 vwvw.tetratech.com ------- ATTACHMENT DATA VALIDATION REPORT EUROFINS AIR TOXICS REPORT NOS. 2306335,2306351,2306430, AND 2306431 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Site Name E Palestine Site - ER TO/TOLIN No. 68HE0520F0032/000IEB201 Document Tracking No. 1993a Laboratory Report No. 2306335 Laboratory Eurofins Air Toxics, LLC, Folsom CA Analyses Volatile organic compounds (VOCs) by EPA method TO-15 in scan anc selected ion monitoring (SIM) modes Samples and Matrix Nine air samples, including one field duplicate Collection Date(s) 6/15/2023 Field Duplicate Pairs EPD-WA-04-061523/EPD-WA-44-061523 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 East Palestine Train Derailment Site East Palestine, Columbiana County, Ohio, Revision 3 (April 2023), 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 sample/laboratory control sample duplicate relative percent differences (RPD) were not provided in the Level II laboratory report. The lab provided the RPDs separately. No qualifications were applied. 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 residual canister receipt vacuum values in the laboratory report were recorded as positive values. The laboratory was contacted and confirmed that all values are negative, even though the minus signs are missing, and that the laboratory uses 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 (2306335-10B): 1,1,2,2-Tetrachloroethane, 1,2-dibromomethane, 1,4-dichlorobenzene, chloromethane, tetrachloroethene, and toluene were detected in the method blank at levels between the method detection limit (MDL) and reporting limit (RL). The 1,1,2,2-Tetrachloroethane result in EPD-UW-H-061523 was qualified as nondetect (flagged U) at the RL. All 1,2-dibromomethane and 1,4-dichlorobenzene sample results were nondetect, therefore no qualifications were necessary. All chloromethane results were qualified as nondetect (flagged U) at the RL. Tetrachloroethene results in EPD-UW-H-061523, EPD-WA- 01-061523, EPD-WA-04-061523, EPD-WA-05-061523, and EPD-WA-44-061523 were qualified as nondetect (flagged U) at the RL. Toluene results were greater than ten times blank value in all samples, therefore no qualifications were necessary. 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 N EPD-WA-04-061523/EPD-WA-44-061523: The absolute difference between the trans-l,2-dichloroethene results in the field duplicate pair exceeded the RL, therefore the trans-l,2-dichloroethene results in both samples were qualified as estimated (flagged J/UJ). LCSs/LCSDs: Within Criteria Exceedance/Notes N TO-15 scan (2306335-12A/2306335-12AA) The percent recoveries of 2-propanol were less than the QC control limits in both the LCS and LCSD. 2-Propanol results in all samples were qualified as nondetect with possible low bias (flagged UJ). 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-DW-D-061523 was 1.37 • EPD-UW-H-061523 was 1.48 • EPD-WA-01-061523 was 1.41 • EPD-WA-02-061523 was 1.43 • EPD-WA-03-061523 was 1.47 • EPD-WA-04-061523 was 1.36 • EPD-WA-05-061523 was 1.42 • EPD-WA-06-061523 was 1.44 • EPD-WA-44-061523 was 1.41 Re-extraction and reanalysis: Within Criteria Exceedance/Notes NA MDLs/RLs: Within Criteria Exceedance/Notes Y Per the case narrative, "The reporting limit for Ethanol was raised from 2.0 ppbv to 6.2 ppbv due to anomalous linearity in the Initial Calibration." 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 most samples. The known TICs were qualified as tentatively identified TETRA TECH Page 4 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT (flagged NJ). The unknown TICs were qualified as estimated (flagged J). 2-Ethyl-l-hexanol and butyl acrylate 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 Overall Qualifications: See results summary pages attached for changes to the laboratory qualifiers based upon this validation. The following 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 quality control criteria. TETRA TECH Page 5 of 5 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-DW-D-061523 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.1 U 0.62 5.1 UG/M3 5.1 U EPD-DW-D-061523 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.15 J 0.098 0.67 UG/M3 0.15 J EPD-DW-D-061523 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.82 U 0.17 0.82 UG/M3 0.82 U EPD-DW-D-061523 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.63 U 0.12 0.63 UG/M3 0.63 U EPD-DW-D-061523 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.67 U 0.12 0.67 UG/M3 0.67 U EPD-DW-D-061523 TO-15 106-99-0 1,3-BUTADIENE 0.3 U 0.052 0.3 UG/M3 0.30 U EPD-DW-D-061523 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.82 U 0.097 0.82 UG/M3 0.82 U EPD-DW-D-061523 TO-15 123-91-1 1,4-DIOXANE 0.49 U 0.12 0.49 UG/M3 0.49 U EPD-DW-D-061523 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.4 J 0.29 3.2 UG/M3 0.40 J EPD-DW-D-061523 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 3.9 0.18 2 UG/M3 3.9 EPD-DW-D-061523 TO-15 591-78-6 2-HEXANONE 0.61 J 0.15 2.8 UG/M3 0.61 J EPD-DW-D-061523 TO-15 67-63-0 2-PROPANOL 6.7 U 3.6 6.7 UG/M3 6.7 UJ EPD-DW-D-061523 TO-15 107-05-1 3-CHLOROPROPENE 2.1 U 0.2 2.1 UG/M3 2.1 U EPD-DW-D-061523 TO-15 622-96-8 4-ETHYLTOLUENE 0.67 U 0.087 0.67 UG/M3 0.67 U EPD-DW-D-061523 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.46 J 0.11 0.56 UG/M3 0.46 J EPD-DW-D-061523 TO-15 67-64-1 ACETONE 22 4.5 6.5 UG/M3 22 EPD-DW-D-061523 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.71 U 0.083 0.71 UG/M3 0.71 U EPD-DW-D-061523 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.92 U 0.079 0.92 UG/M3 0.92 U EPD-DW-D-061523 TO-15 75-25-2 BROMOFORM 1.4 U 0.33 1.4 UG/M3 1.4 U EPD-DW-D-061523 TO-15 74-83-9 BROMOMETHANE 27 U 0.32 27 UG/M3 27 U EPD-DW-D-061523 TO-15 75-15-0 CARBON DISULFIDE 2.1 U 0.22 2.1 UG/M3 2.1 U EPD-DW-D-061523 TO-15 108-90-7 CHLOROBENZENE 0.63 U 0.058 0.63 UG/M3 0.63 U EPD-DW-D-061523 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.62 U 0.1 0.62 UG/M3 0.62 U EPD-DW-D-061523 TO-15 98-82-8 CUMENE 0.67 U 0.09 0.67 UG/M3 0.67 U EPD-DW-D-061523 TO-15 110-82-7 CYCLOHEXANE 2.4 U 0.095 2.4 UG/M3 2.4 U EPD-DW-D-061523 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.14 1.2 UG/M3 1.2 U EPD-DW-D-061523 TO-15 64-17-5 ETHANOL 4.5 J 2.7 16 UG/M3 4.5 J EPD-DW-D-061523 TO-15 75-69-4 FREON 11 1.6 0.097 0.77 UG/M3 1.6 EPD-DW-D-061523 TO-15 76-13-1 FREON 113 0.44 J 0.088 1 UG/M3 0.44 J EPD-DW-D-061523 TO-15 142-82-5 HEPTANE 2.8 U 0.22 2.8 UG/M3 2.8 U EPD-DW-D-061523 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.3 U 0.36 7.3 UG/M3 7.3 U EPD-DW-D-061523 TO-15 110-54-3 HEXANE 0.35 J 0.16 2.4 UG/M3 0.35 J EPD-DW-D-061523 TO-15 75-09-2 METHYLENE CHLORIDE 0.6 J 0.14 0.95 UG/M3 0.60 J EPD-DW-D-061523 TO-15 103-65-1 PROPYLBENZENE 0.67 U 0.075 0.67 UG/M3 0.67 U EPD-DW-D-061523 TO-15 100-42-5 STYRENE 0.58 U 0.089 0.58 UG/M3 0.58 U EPD-DW-D-061523 TO-15 109-99-9 TETRAHYDROFURAN 2 U 0.2 2 UG/M3 2.0 U EPD-DW-D-061523 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.62 U 0.094 0.62 UG/M3 0.62 U EPD-DW-D-061523 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-DW-D-061523 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 u PPBV 0 U, NF Page 1 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-DW-D-061523 TO-15 NA UNKNOWN TIC 0.77 J PPBV 0.77 J EPD-DW-D-061523 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.025 J 0.0066 0.15 UG/M3 0.025 J EPD-DW-D-061523 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.014 0.19 UG/M3 0.19 U EPD-DW-D-061523 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.0086 0.15 UG/M3 0.15 U EPD-DW-D-061523 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.0056 0.11 UG/M3 0.11 U EPD-DW-D-061523 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.054 U 0.012 0.054 UG/M3 0.054 U EPD-DW-D-061523 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.21 U 0.018 0.21 UG/M3 0.21 U EPD-DW-D-061523 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.082 J 0.0091 0.11 UG/M3 0.082 J EPD-DW-D-061523 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.16 U 0.073 0.16 UG/M3 0.16 U EPD-DW-D-061523 TO-15 SIM 71-43-2 BENZENE 0.6 0.072 0.22 UG/M3 0.60 EPD-DW-D-061523 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.51 0.023 0.17 UG/M3 0.51 EPD-DW-D-061523 TO-15 SIM 75-00-3 CHLOROETHANE 0.18 U 0.013 0.18 UG/M3 0.18 U EPD-DW-D-061523 TO-15 SIM 67-66-3 CHLOROFORM 0.12 J 0.011 0.13 UG/M3 0.12 J EPD-DW-D-061523 TO-15 SIM 74-87-3 CHLOROMETHANE 0.81 J 0.0087 1.4 UG/M3 1.4 U EPD-DW-D-061523 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.0094 0.11 UG/M3 0.11 U EPD-DW-D-061523 TO-15 SIM 100-41-4 ETHYL BENZENE 0.13 0.018 0.12 UG/M3 0.13 EPD-DW-D-061523 TO-15 SIM 76-14-2 FREON 114 0.14 J 0.0078 0.19 UG/M3 0.14 J EPD-DW-D-061523 TO-15 SIM 75-71-8 FREON 12 2.8 0.0056 0.34 UG/M3 2.8 EPD-DW-D-061523 TO-15 SIM 179601-23-1 M,P-XYLENE 0.39 0.053 0.24 UG/M3 0.39 EPD-DW-D-061523 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.49 U 0.0049 0.49 UG/M3 0.49 U EPD-DW-D-061523 TO-15 SIM 91-20-3 NAPHTHALENE 0.077 J 0.044 0.36 UG/M3 0.077 J EPD-DW-D-061523 TO-15 SIM 95-47-6 O-XYLENE 0.16 0.029 0.12 UG/M3 0.16 EPD-DW-D-061523 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.21 0.0072 0.18 UG/M3 0.21 EPD-DW-D-061523 TO-15 SIM 108-88-3 TOLUENE 1 0.034 0.26 UG/M3 1.0 EPD-DW-D-061523 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.54 U 0.0094 0.54 UG/M3 0.54 U EPD-DW-D-061523 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.023 J 0.01 0.15 UG/M3 0.023 J EPD-DW-D-061523 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.026 J 0.0049 0.035 UG/M3 0.026 J EPD-UW-H-061523 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.5 U 0.66 5.5 UG/M3 5.5 U EPD-UW-H-061523 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.21 J 0.11 0.73 UG/M3 0.21 J EPD-UW-H-061523 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.89 U 0.18 0.89 UG/M3 0.89 U EPD-UW-H-061523 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.68 U 0.13 0.68 UG/M3 0.68 U EPD-UW-H-061523 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.73 U 0.13 0.73 UG/M3 0.73 U EPD-UW-H-061523 TO-15 106-99-0 1,3-BUTADIENE 0.33 U 0.056 0.33 UG/M3 0.33 U EPD-UW-H-061523 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.89 U 0.1 0.89 UG/M3 0.89 U EPD-UW-H-061523 TO-15 123-91-1 1,4-DIOXANE 0.53 U 0.13 0.53 UG/M3 0.53 U EPD-UW-H-061523 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.47 J 0.31 3.4 UG/M3 0.47 J EPD-UW-H-061523 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 3.1 0.2 2.2 UG/M3 3.1 EPD-UW-H-061523 TO-15 591-78-6 2-HEXANONE 0.36 J 0.16 3 UG/M3 0.36 J EPD-UW-H-061523 TO-15 67-63-0 2-PROPANOL 7.3 U 3.9 7.3 UG/M3 7.3 UJ Page 2 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-UW-H-061523 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.22 2.3 UG/M3 2.3 U EPD-UW-H-061523 TO-15 622-96-8 4-ETHYLTOLUENE 0.21 J 0.094 0.73 UG/M3 0.21 J EPD-UW-H-061523 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.36 J 0.12 0.61 UG/M3 0.36 J EPD-UW-H-061523 TO-15 67-64-1 ACETONE 26 4.8 7 UG/M3 26 EPD-UW-H-061523 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.77 U 0.089 0.77 UG/M3 0.77 U EPD-UW-H-061523 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.99 U 0.085 0.99 UG/M3 0.99 U EPD-UW-H-061523 TO-15 75-25-2 BROMOFORM 1.5 U 0.36 1.5 UG/M3 1.5 U EPD-UW-H-061523 TO-15 74-83-9 BROMOMETHANE 29 U 0.35 29 UG/M3 29 U EPD-UW-H-061523 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.24 2.3 UG/M3 2.3 U EPD-UW-H-061523 TO-15 108-90-7 CHLOROBENZENE 0.68 U 0.063 0.68 UG/M3 0.68 U EPD-UW-H-061523 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.67 U 0.11 0.67 UG/M3 0.67 U EPD-UW-H-061523 TO-15 98-82-8 CUMENE 0.73 U 0.097 0.73 UG/M3 0.73 U EPD-UW-H-061523 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.1 2.5 UG/M3 2.5 U EPD-UW-H-061523 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.15 1.3 UG/M3 1.3 U EPD-UW-H-061523 TO-15 64-17-5 ETHANOL 6.3 J 2.9 17 UG/M3 6.3 J EPD-UW-H-061523 TO-15 75-69-4 FREON 11 1.3 0.1 0.83 UG/M3 1.3 EPD-UW-H-061523 TO-15 76-13-1 FREON 113 0.48 J 0.095 1.1 UG/M3 0.48 J EPD-UW-H-061523 TO-15 142-82-5 HEPTANE 0.28 J 0.24 3 UG/M3 0.28 J EPD-UW-H-061523 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.9 U 0.39 7.9 UG/M3 7.9 U EPD-UW-H-061523 TO-15 110-54-3 HEXANE 0.44 J 0.18 2.6 UG/M3 0.44 J EPD-UW-H-061523 TO-15 75-09-2 METHYLENE CHLORIDE 0.62 J 0.16 1 UG/M3 0.62 J EPD-UW-H-061523 TO-15 103-65-1 PROPYLBENZENE 0.73 U 0.081 0.73 UG/M3 0.73 U EPD-UW-H-061523 TO-15 100-42-5 STYRENE 0.63 U 0.096 0.63 UG/M3 0.63 U EPD-UW-H-061523 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.21 2.2 UG/M3 2.2 U EPD-UW-H-061523 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.67 U 0.1 0.67 UG/M3 0.67 U EPD-UW-H-061523 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-UW-H-061523 TO-15 106-97-8 BUTANE 0.85 NJ PPBV 0.85 NJ EPD-UW-H-061523 TO-15 78-78-4 BUTANE, 2-METHYL- 0.79 NJ PPBV 0.79 NJ EPD-UW-H-061523 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-UW-H-061523 TO-15 74-98-6 PROPANE 2.8 NJ PPBV 2.8 NJ EPD-UW-H-061523 TO-15 NA UNKNOWN TIC 1 J PPBV 1.0 J EPD-UW-H-061523 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.0071 0.16 UG/M3 0.16 U EPD-UW-H-061523 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.017 J 0.015 0.2 UG/M3 0.20 U EPD-UW-H-061523 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.0093 0.16 UG/M3 0.16 U EPD-UW-H-061523 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.0061 0.12 UG/M3 0.12 U EPD-UW-H-061523 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.012 0.059 UG/M3 0.059 U EPD-UW-H-061523 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.019 0.23 UG/M3 0.23 U EPD-UW-H-061523 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.077 J 0.0099 0.12 UG/M3 0.077 J EPD-UW-H-061523 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.078 0.18 UG/M3 0.18 U Page 3 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-UW-H-061523 TO-15 SIM 71-43-2 BENZENE 0.66 0.078 0.24 UG/M3 0.66 EPD-UW-H-061523 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.47 0.025 0.19 UG/M3 0.47 EPD-UW-H-061523 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.014 0.2 UG/M3 0.20 U EPD-UW-H-061523 TO-15 SIM 67-66-3 CHLOROFORM 0.12 J 0.011 0.14 UG/M3 0.12 J EPD-UW-H-061523 TO-15 SIM 74-87-3 CHLOROMETHANE 0.71 J 0.0094 1.5 UG/M3 1.5 U EPD-UW-H-061523 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.01 0.12 UG/M3 0.12 U EPD-UW-H-061523 TO-15 SIM 100-41-4 ETHYL BENZENE 0.19 0.02 0.13 UG/M3 0.19 EPD-UW-H-061523 TO-15 SIM 76-14-2 FREON 114 0.12 J 0.0085 0.21 UG/M3 0.12 J EPD-UW-H-061523 TO-15 SIM 75-71-8 FREON 12 2.6 0.0061 0.36 UG/M3 2.6 EPD-UW-H-061523 TO-15 SIM 179601-23-1 M,P-XYLENE 0.53 0.058 0.26 UG/M3 0.53 EPD-UW-H-061523 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.53 U 0.0053 0.53 UG/M3 0.53 U EPD-UW-H-061523 TO-15 SIM 91-20-3 NAPHTHALENE 0.069 J 0.048 0.39 UG/M3 0.069 J EPD-UW-H-061523 TO-15 SIM 95-47-6 O-XYLENE 0.21 0.031 0.13 UG/M3 0.21 EPD-UW-H-061523 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.14 J 0.0078 0.2 UG/M3 0.20 U EPD-UW-H-061523 TO-15 SIM 108-88-3 TOLUENE 1.2 0.037 0.28 UG/M3 1.2 EPD-UW-H-061523 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.59 U 0.01 0.59 UG/M3 0.59 U EPD-UW-H-061523 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.034 J 0.011 0.16 UG/M3 0.034 J EPD-UW-H-061523 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.038 U 0.0052 0.038 UG/M3 0.038 U EPD-WA-01-061523 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.2 U 0.63 5.2 UG/M3 5.2 U EPD-WA-01-061523 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.15 J 0.1 0.69 UG/M3 0.15 J EPD-WA-01-061523 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.85 U 0.17 0.85 UG/M3 0.85 U EPD-WA-01-061523 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.65 U 0.13 0.65 UG/M3 0.65 U EPD-WA-01-061523 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.69 U 0.12 0.69 UG/M3 0.69 U EPD-WA-01-061523 TO-15 106-99-0 1,3-BUTADIENE 0.31 U 0.054 0.31 UG/M3 0.31 U EPD-WA-01-061523 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.85 U 0.1 0.85 UG/M3 0.85 U EPD-WA-01-061523 TO-15 123-91-1 1,4-DIOXANE 0.51 U 0.12 0.51 UG/M3 0.51 U EPD-WA-01-061523 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.47 J 0.3 3.3 UG/M3 0.47 J EPD-WA-01-061523 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.51 J 0.19 2.1 UG/M3 0.51 J EPD-WA-01-061523 TO-15 591-78-6 2-HEXANONE 2.9 U 0.15 2.9 UG/M3 2.9 U EPD-WA-01-061523 TO-15 67-63-0 2-PROPANOL 6.9 U 3.7 6.9 UG/M3 6.9 UJ EPD-WA-01-061523 TO-15 107-05-1 3-CHLOROPROPENE 2.2 U 0.21 2.2 UG/M3 2.2 U EPD-WA-01-061523 TO-15 622-96-8 4-ETHYLTOLUENE 0.69 U 0.089 0.69 UG/M3 0.69 U EPD-WA-01-061523 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.58 U 0.11 0.58 UG/M3 0.58 U EPD-WA-01-061523 TO-15 67-64-1 ACETONE 5.9 J 4.6 6.7 UG/M3 5.9 J EPD-WA-01-061523 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.73 U 0.085 0.73 UG/M3 0.73 U EPD-WA-01-061523 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.94 U 0.081 0.94 UG/M3 0.94 U EPD-WA-01-061523 TO-15 75-25-2 BROMOFORM 1.4 U 0.34 1.4 UG/M3 1.4 U EPD-WA-01-061523 TO-15 74-83-9 BROMOMETHANE 27 U 0.33 27 UG/M3 27 U EPD-WA-01-061523 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.23 2.2 UG/M3 2.2 U Page 4 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-01-061523 TO-15 108-90-7 CHLOROBENZENE 0.65 U 0.06 0.65 UG/M3 0.65 U EPD-WA-01-061523 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.64 U 0.1 0.64 UG/M3 0.64 U EPD-WA-01-061523 TO-15 98-82-8 CUMENE 0.69 U 0.093 0.69 UG/M3 0.69 U EPD-WA-01-061523 TO-15 110-82-7 CYCLOHEXANE 0.13 J 0.098 2.4 UG/M3 0.13 J EPD-WA-01-061523 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.14 1.2 UG/M3 1.2 U EPD-WA-01-061523 TO-15 64-17-5 ETHANOL 3.9 J 2.8 16 UG/M3 3.9 J EPD-WA-01-061523 TO-15 75-69-4 FREON 11 1.4 0.1 0.79 UG/M3 1.4 EPD-WA-01-061523 TO-15 76-13-1 FREON 113 0.5 J 0.091 1.1 UG/M3 0.50 J EPD-WA-01-061523 TO-15 142-82-5 HEPTANE 2.9 U 0.23 2.9 UG/M3 2.9 U EPD-WA-01-061523 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.5 U 0.37 7.5 UG/M3 7.5 U EPD-WA-01-061523 TO-15 110-54-3 HEXANE 0.64 J 0.17 2.5 UG/M3 0.64 J EPD-WA-01-061523 TO-15 75-09-2 METHYLENE CHLORIDE 0.46 J 0.15 0.98 UG/M3 0.46 J EPD-WA-01-061523 TO-15 103-65-1 PROPYLBENZENE 0.69 U 0.078 0.69 UG/M3 0.69 U EPD-WA-01-061523 TO-15 100-42-5 STYRENE 0.6 U 0.091 0.6 UG/M3 0.60 U EPD-WA-01-061523 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 0.2 2.1 UG/M3 2.1 U EPD-WA-01-061523 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.64 U 0.096 0.64 UG/M3 0.64 U EPD-WA-01-061523 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-01-061523 TO-15 106-97-8 BUTANE 0.87 NJ PPBV 0.87 NJ EPD-WA-01-061523 TO-15 78-78-4 BUTANE, 2-METHYL- 1.2 NJ PPBV 1.2 NJ EPD-WA-01-061523 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-01-061523 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.0068 0.15 UG/M3 0.15 U EPD-WA-01-061523 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.014 0.19 UG/M3 0.19 U EPD-WA-01-061523 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.0088 0.15 UG/M3 0.15 U EPD-WA-01-061523 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.0058 0.11 UG/M3 0.11 U EPD-WA-01-061523 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 U 0.012 0.056 UG/M3 0.056 U EPD-WA-01-061523 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.018 0.22 UG/M3 0.22 U EPD-WA-01-061523 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.07 J 0.0094 0.11 UG/M3 0.070 J EPD-WA-01-061523 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.075 0.17 UG/M3 0.17 U EPD-WA-01-061523 TO-15 SIM 71-43-2 BENZENE 0.61 0.075 0.22 UG/M3 0.61 EPD-WA-01-061523 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.46 0.024 0.18 UG/M3 0.46 EPD-WA-01-061523 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.013 0.19 UG/M3 0.19 U EPD-WA-01-061523 TO-15 SIM 67-66-3 CHLOROFORM 0.1 J 0.011 0.14 UG/M3 0.10 J EPD-WA-01-061523 TO-15 SIM 74-87-3 CHLOROMETHANE 0.69 J 0.009 1.4 UG/M3 1.4 U EPD-WA-01-061523 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.0097 0.11 UG/M3 0.11 U EPD-WA-01-061523 TO-15 SIM 100-41-4 ETHYL BENZENE 0.14 0.019 0.12 UG/M3 0.14 EPD-WA-01-061523 TO-15 SIM 76-14-2 FREON 114 0.11 J 0.0081 0.2 UG/M3 0.11 J EPD-WA-01-061523 TO-15 SIM 75-71-8 FREON 12 2.5 0.0058 0.35 UG/M3 2.5 EPD-WA-01-061523 TO-15 SIM 179601-23-1 M,P-XYLENE 0.42 0.055 0.24 UG/M3 0.42 EPD-WA-01-061523 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.51 U 0.0051 0.51 UG/M3 0.51 U Page 5 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-01-061523 TO-15 SIM 91-20-3 NAPHTHALENE 0.063 J 0.045 0.37 UG/M3 0.063 J EPD-WA-01-061523 TO-15 SIM 95-47-6 O-XYLENE 0.16 0.029 0.12 UG/M3 0.16 EPD-WA-01-061523 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.14 J 0.0075 0.19 UG/M3 0.19 U EPD-WA-01-061523 TO-15 SIM 108-88-3 TOLUENE 1.1 0.036 0.26 UG/M3 1.1 EPD-WA-01-061523 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.56 U 0.0097 0.56 UG/M3 0.56 U EPD-WA-01-061523 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.15 U 0.011 0.15 UG/M3 0.15 U EPD-WA-01-061523 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.082 0.005 0.036 UG/M3 0.082 EPD-WA-02-061523 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.3 U 0.64 5.3 UG/M3 5.3 U EPD-WA-02-061523 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.18 J 0.1 0.7 UG/M3 0.18 J EPD-WA-02-061523 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.86 U 0.18 0.86 UG/M3 0.86 U EPD-WA-02-061523 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.66 U 0.13 0.66 UG/M3 0.66 U EPD-WA-02-061523 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.7 U 0.12 0.7 UG/M3 0.70 U EPD-WA-02-061523 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.055 0.32 UG/M3 0.32 U EPD-WA-02-061523 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.86 U 0.1 0.86 UG/M3 0.86 U EPD-WA-02-061523 TO-15 123-91-1 1,4-DIOXANE 0.52 U 0.13 0.52 UG/M3 0.52 U EPD-WA-02-061523 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.5 J 0.3 3.3 UG/M3 0.50 J EPD-WA-02-061523 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.7 J 0.19 2.1 UG/M3 1.7 J EPD-WA-02-061523 TO-15 591-78-6 2-HEXANONE 2.9 U 0.16 2.9 UG/M3 2.9 U EPD-WA-02-061523 TO-15 67-63-0 2-PROPANOL 7 U 3.8 7 UG/M3 7.0 UJ EPD-WA-02-061523 TO-15 107-05-1 3-CHLOROPROPENE 2.2 U 0.21 2.2 UG/M3 2.2 U EPD-WA-02-061523 TO-15 622-96-8 4-ETHYLTOLUENE 0.15 J 0.091 0.7 UG/M3 0.15 J EPD-WA-02-061523 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.58 U 0.11 0.58 UG/M3 0.58 U EPD-WA-02-061523 TO-15 67-64-1 ACETONE 13 4.7 6.8 UG/M3 13 EPD-WA-02-061523 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.74 U 0.086 0.74 UG/M3 0.74 U EPD-WA-02-061523 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.96 U 0.082 0.96 UG/M3 0.96 U EPD-WA-02-061523 TO-15 75-25-2 BROMOFORM 1.5 U 0.35 1.5 UG/M3 1.5 U EPD-WA-02-061523 TO-15 74-83-9 BROMOMETHANE 28 U 0.34 28 UG/M3 28 U EPD-WA-02-061523 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.23 2.2 UG/M3 2.2 U EPD-WA-02-061523 TO-15 108-90-7 CHLOROBENZENE 0.66 U 0.061 0.66 UG/M3 0.66 U EPD-WA-02-061523 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.65 U 0.11 0.65 UG/M3 0.65 U EPD-WA-02-061523 TO-15 98-82-8 CUMENE 0.7 U 0.094 0.7 UG/M3 0.70 U EPD-WA-02-061523 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.099 2.5 UG/M3 2.5 U EPD-WA-02-061523 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.15 1.2 UG/M3 1.2 U EPD-WA-02-061523 TO-15 64-17-5 ETHANOL 3.9 J 2.8 17 UG/M3 3.9 J EPD-WA-02-061523 TO-15 75-69-4 FREON 11 1.6 0.1 0.8 UG/M3 1.6 EPD-WA-02-061523 TO-15 76-13-1 FREON 113 0.53 J 0.092 1.1 UG/M3 0.53 J EPD-WA-02-061523 TO-15 142-82-5 HEPTANE 2.9 U 0.23 2.9 UG/M3 2.9 U EPD-WA-02-061523 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.6 U 0.38 7.6 UG/M3 7.6 U EPD-WA-02-061523 TO-15 110-54-3 HEXANE 0.38 J 0.17 2.5 UG/M3 0.38 J Page 6 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-02-061523 TO-15 75-09-2 METHYLENE CHLORIDE 0.53 J 0.15 0.99 UG/M3 0.53 J EPD-WA-02-061523 TO-15 103-65-1 PROPYLBENZENE 0.7 U 0.079 0.7 UG/M3 0.70 U EPD-WA-02-061523 TO-15 100-42-5 STYRENE 0.61 U 0.092 0.61 UG/M3 0.61 U EPD-WA-02-061523 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 0.2 2.1 UG/M3 2.1 U EPD-WA-02-061523 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.65 U 0.098 0.65 UG/M3 0.65 U EPD-WA-02-061523 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-02-061523 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-02-061523 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.017 J 0.0069 0.16 UG/M3 0.017 J EPD-WA-02-061523 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.014 0.2 UG/M3 0.20 U EPD-WA-02-061523 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.009 0.16 UG/M3 0.16 U EPD-WA-02-061523 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.0059 0.12 UG/M3 0.12 U EPD-WA-02-061523 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.057 U 0.012 0.057 UG/M3 0.057 U EPD-WA-02-061523 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.019 0.22 UG/M3 0.22 U EPD-WA-02-061523 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.078 J 0.0095 0.12 UG/M3 0.078 J EPD-WA-02-061523 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.076 0.17 UG/M3 0.17 U EPD-WA-02-061523 TO-15 SIM 71-43-2 BENZENE 0.61 0.076 0.23 UG/M3 0.61 EPD-WA-02-061523 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.5 0.024 0.18 UG/M3 0.50 EPD-WA-02-061523 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.013 0.19 UG/M3 0.19 U EPD-WA-02-061523 TO-15 SIM 67-66-3 CHLOROFORM 0.11 J 0.011 0.14 UG/M3 0.11 J EPD-WA-02-061523 TO-15 SIM 74-87-3 CHLOROMETHANE 0.77 J 0.0091 1.5 UG/M3 1.5 U EPD-WA-02-061523 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.0098 0.11 UG/M3 0.11 U EPD-WA-02-061523 TO-15 SIM 100-41-4 ETHYL BENZENE 0.14 0.019 0.12 UG/M3 0.14 EPD-WA-02-061523 TO-15 SIM 76-14-2 FREON 114 0.12 J 0.0082 0.2 UG/M3 0.12 J EPD-WA-02-061523 TO-15 SIM 75-71-8 FREON 12 2.7 0.0059 0.35 UG/M3 2.7 EPD-WA-02-061523 TO-15 SIM 179601-23-1 M,P-XYLENE 0.4 0.056 0.25 UG/M3 0.40 EPD-WA-02-061523 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.52 U 0.0052 0.52 UG/M3 0.52 U EPD-WA-02-061523 TO-15 SIM 91-20-3 NAPHTHALENE 0.37 U 0.046 0.37 UG/M3 0.37 U EPD-WA-02-061523 TO-15 SIM 95-47-6 O-XYLENE 0.16 0.03 0.12 UG/M3 0.16 EPD-WA-02-061523 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.33 0.0076 0.19 UG/M3 0.33 EPD-WA-02-061523 TO-15 SIM 108-88-3 TOLUENE 1.1 0.036 0.27 UG/M3 1.1 EPD-WA-02-061523 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.57 U 0.0099 0.57 UG/M3 0.57 U EPD-WA-02-061523 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.15 U 0.011 0.15 UG/M3 0.15 U EPD-WA-02-061523 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.036 U 0.0051 0.036 UG/M3 0.036 U EPD-WA-03-061523 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 0.66 5.4 UG/M3 5.4 U EPD-WA-03-061523 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.18 J 0.1 0.72 UG/M3 0.18 J EPD-WA-03-061523 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.88 U 0.18 0.88 UG/M3 0.88 U EPD-WA-03-061523 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.68 U 0.13 0.68 UG/M3 0.68 U EPD-WA-03-061523 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.72 U 0.13 0.72 UG/M3 0.72 U EPD-WA-03-061523 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.056 0.32 UG/M3 0.32 U Page 7 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-03-061523 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.88 U 0.1 0.88 UG/M3 0.88 U EPD-WA-03-061523 TO-15 123-91-1 1,4-DIOXANE 0.53 U 0.13 0.53 UG/M3 0.53 U EPD-WA-03-061523 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.46 J 0.31 3.4 UG/M3 0.46 J EPD-WA-03-061523 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 2.8 0.2 2.2 UG/M3 2.8 EPD-WA-03-061523 TO-15 591-78-6 2-HEXANONE 0.3 J 0.16 3 UG/M3 0.30 J EPD-WA-03-061523 TO-15 67-63-0 2-PROPANOL 7.2 U 3.9 7.2 UG/M3 7.2 UJ EPD-WA-03-061523 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.21 2.3 UG/M3 2.3 U EPD-WA-03-061523 TO-15 622-96-8 4-ETHYLTOLUENE 0.72 U 0.093 0.72 UG/M3 0.72 U EPD-WA-03-061523 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.44 J 0.12 0.6 UG/M3 0.44 J EPD-WA-03-061523 TO-15 67-64-1 ACETONE 27 4.8 7 UG/M3 27 EPD-WA-03-061523 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.76 U 0.089 0.76 UG/M3 0.76 U EPD-WA-03-061523 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.98 U 0.084 0.98 UG/M3 0.98 U EPD-WA-03-061523 TO-15 75-25-2 BROMOFORM 1.5 U 0.36 1.5 UG/M3 1.5 U EPD-WA-03-061523 TO-15 74-83-9 BROMOMETHANE 28 U 0.35 28 UG/M3 28 U EPD-WA-03-061523 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.24 2.3 UG/M3 2.3 U EPD-WA-03-061523 TO-15 108-90-7 CHLOROBENZENE 0.68 U 0.063 0.68 UG/M3 0.68 U EPD-WA-03-061523 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.67 U 0.11 0.67 UG/M3 0.67 U EPD-WA-03-061523 TO-15 98-82-8 CUMENE 0.72 U 0.096 0.72 UG/M3 0.72 U EPD-WA-03-061523 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.1 2.5 UG/M3 2.5 U EPD-WA-03-061523 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.15 1.2 UG/M3 1.2 U EPD-WA-03-061523 TO-15 64-17-5 ETHANOL 5 J 2.9 17 UG/M3 5.0 J EPD-WA-03-061523 TO-15 75-69-4 FREON 11 1.4 0.1 0.82 UG/M3 1.4 EPD-WA-03-061523 TO-15 76-13-1 FREON 113 0.44 J 0.095 1.1 UG/M3 0.44 J EPD-WA-03-061523 TO-15 142-82-5 HEPTANE 3 U 0.24 3 UG/M3 3.0 U EPD-WA-03-061523 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.8 U 0.39 7.8 UG/M3 7.8 U EPD-WA-03-061523 TO-15 110-54-3 HEXANE 0.42 J 0.18 2.6 UG/M3 0.42 J EPD-WA-03-061523 TO-15 75-09-2 METHYLENE CHLORIDE 0.66 J 0.15 1 UG/M3 0.66 J EPD-WA-03-061523 TO-15 103-65-1 PROPYLBENZENE 0.72 U 0.081 0.72 UG/M3 0.72 U EPD-WA-03-061523 TO-15 100-42-5 STYRENE 0.63 U 0.095 0.63 UG/M3 0.63 U EPD-WA-03-061523 TO-15 109-99-9 TETRAHYDROFURAN 0.48 J 0.21 2.2 UG/M3 0.48 J EPD-WA-03-061523 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.67 U 0.1 0.67 UG/M3 0.67 U EPD-WA-03-061523 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-WA-03-061523 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-WA-03-061523 TO-15 NA UNKNOWN TIC 0.85 J PPBV 0.85 J EPD-WA-03-061523 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.007 0.16 UG/M3 0.16 U EPD-WA-03-061523 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.015 0.2 UG/M3 0.20 U EPD-WA-03-061523 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.0092 0.16 UG/M3 0.16 U EPD-WA-03-061523 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.0061 0.12 UG/M3 0.12 U EPD-WA-03-061523 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.058 U 0.012 0.058 UG/M3 0.058 U Page 8 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-03-061523 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.019 0.22 UG/M3 0.22 U EPD-WA-03-061523 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.079 J 0.0098 0.12 UG/M3 0.079 J EPD-WA-03-061523 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.078 0.18 UG/M3 0.18 U EPD-WA-03-061523 TO-15 SIM 71-43-2 BENZENE 0.59 0.078 0.23 UG/M3 0.59 EPD-WA-03-061523 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.49 0.025 0.18 UG/M3 0.49 EPD-WA-03-061523 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.014 0.19 UG/M3 0.19 U EPD-WA-03-061523 TO-15 SIM 67-66-3 CHLOROFORM 0.13 J 0.011 0.14 UG/M3 0.13 J EPD-WA-03-061523 TO-15 SIM 74-87-3 CHLOROMETHANE 0.79 J 0.0093 1.5 UG/M3 1.5 U EPD-WA-03-061523 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.01 0.12 UG/M3 0.12 U EPD-WA-03-061523 TO-15 SIM 100-41-4 ETHYL BENZENE 0.14 0.02 0.13 UG/M3 0.14 EPD-WA-03-061523 TO-15 SIM 76-14-2 FREON 114 0.13 J 0.0084 0.2 UG/M3 0.13 J EPD-WA-03-061523 TO-15 SIM 75-71-8 FREON 12 2.7 0.006 0.36 UG/M3 2.7 EPD-WA-03-061523 TO-15 SIM 179601-23-1 M,P-XYLENE 0.42 0.057 0.26 UG/M3 0.42 EPD-WA-03-061523 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.53 U 0.0053 0.53 UG/M3 0.53 U EPD-WA-03-061523 TO-15 SIM 91-20-3 NAPHTHALENE 0.098 J 0.047 0.38 UG/M3 0.098 J EPD-WA-03-061523 TO-15 SIM 95-47-6 O-XYLENE 0.16 0.031 0.13 UG/M3 0.16 EPD-WA-03-061523 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.22 0.0078 0.2 UG/M3 0.22 EPD-WA-03-061523 TO-15 SIM 108-88-3 TOLUENE 1.2 0.037 0.28 UG/M3 1.2 EPD-WA-03-061523 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.12 J 0.01 0.58 UG/M3 0.12 J EPD-WA-03-061523 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.032 J 0.011 0.16 UG/M3 0.032 J EPD-WA-03-061523 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.0098 J 0.0052 0.038 UG/M3 0.0098 J EPD-WA-04-061523 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5 U 0.61 5 UG/M3 5.0 U EPD-WA-04-061523 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.15 J 0.098 0.67 UG/M3 0.15 J EPD-WA-04-061523 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.82 U 0.17 0.82 UG/M3 0.82 U EPD-WA-04-061523 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.63 U 0.12 0.63 UG/M3 0.63 U EPD-WA-04-061523 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.67 U 0.12 0.67 UG/M3 0.67 U EPD-WA-04-061523 TO-15 106-99-0 1,3-BUTADIENE 0.3 U 0.052 0.3 UG/M3 0.30 U EPD-WA-04-061523 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.82 U 0.096 0.82 UG/M3 0.82 U EPD-WA-04-061523 TO-15 123-91-1 1,4-DIOXANE 0.49 U 0.12 0.49 UG/M3 0.49 U EPD-WA-04-061523 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.47 J 0.28 3.2 UG/M3 0.47 J EPD-WA-04-061523 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.1 J 0.18 2 UG/M3 1.1 J EPD-WA-04-061523 TO-15 591-78-6 2-HEXANONE 2.8 U 0.15 2.8 UG/M3 2.8 U EPD-WA-04-061523 TO-15 67-63-0 2-PROPANOL 6.7 U 3.6 6.7 UG/M3 6.7 UJ EPD-WA-04-061523 TO-15 107-05-1 3-CHLOROPROPENE 2.1 U 0.2 2.1 UG/M3 2.1 U EPD-WA-04-061523 TO-15 622-96-8 4-ETHYLTOLUENE 0.67 U 0.086 0.67 UG/M3 0.67 U EPD-WA-04-061523 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.56 U 0.11 0.56 UG/M3 0.56 U EPD-WA-04-061523 TO-15 67-64-1 ACETONE 18 4.4 6.5 UG/M3 18 EPD-WA-04-061523 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.7 U 0.082 0.7 UG/M3 0.70 U EPD-WA-04-061523 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.91 U 0.078 0.91 UG/M3 0.91 U Page 9 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-061523 TO-15 75-25-2 BROMOFORM 1.4 U 0.33 1.4 UG/M3 1.4 U EPD-WA-04-061523 TO-15 74-83-9 BROMOMETHANE 26 U 0.32 26 UG/M3 26 U EPD-WA-04-061523 TO-15 75-15-0 CARBON DISULFIDE 2.1 U 0.22 2.1 UG/M3 2.1 U EPD-WA-04-061523 TO-15 108-90-7 CHLOROBENZENE 0.63 U 0.058 0.63 UG/M3 0.63 U EPD-WA-04-061523 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.62 U 0.1 0.62 UG/M3 0.62 U EPD-WA-04-061523 TO-15 98-82-8 CUMENE 0.67 U 0.089 0.67 UG/M3 0.67 U EPD-WA-04-061523 TO-15 110-82-7 CYCLOHEXANE 2.3 U 0.094 2.3 UG/M3 2.3 U EPD-WA-04-061523 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.14 1.2 UG/M3 1.2 U EPD-WA-04-061523 TO-15 64-17-5 ETHANOL 4.7 J 2.7 16 UG/M3 4.7 J EPD-WA-04-061523 TO-15 75-69-4 FREON 11 1.4 0.096 0.76 UG/M3 1.4 EPD-WA-04-061523 TO-15 76-13-1 FREON 113 0.51 J 0.088 1 UG/M3 0.51 J EPD-WA-04-061523 TO-15 142-82-5 HEPTANE 0.74 J 0.22 2.8 UG/M3 0.74 J EPD-WA-04-061523 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.2 U 0.36 7.2 UG/M3 7.2 U EPD-WA-04-061523 TO-15 110-54-3 HEXANE 0.99 J 0.16 2.4 UG/M3 0.99 J EPD-WA-04-061523 TO-15 75-09-2 METHYLENE CHLORIDE 0.56 J 0.14 0.94 UG/M3 0.56 J EPD-WA-04-061523 TO-15 103-65-1 PROPYLBENZENE 0.67 U 0.075 0.67 UG/M3 0.67 U EPD-WA-04-061523 TO-15 100-42-5 STYRENE 0.58 U 0.088 0.58 UG/M3 0.58 U EPD-WA-04-061523 TO-15 109-99-9 TETRAHYDROFURAN 2 U 0.2 2 UG/M3 2.0 U EPD-WA-04-061523 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.62 U 0.093 0.62 UG/M3 0.62 U EPD-WA-04-061523 TO-15 107-39-1 1-PENTENE, 2,4,4-TRIMETHYL- 1.1 NJ PPBV 1.1 NJ EPD-WA-04-061523 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-04-061523 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-04-061523 TO-15 NA UNKNOWN TIC 1 J PPBV 1.0 J EPD-WA-04-061523 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.0065 0.15 UG/M3 0.15 U EPD-WA-04-061523 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.014 0.19 UG/M3 0.19 U EPD-WA-04-061523 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.0085 0.15 UG/M3 0.15 U EPD-WA-04-061523 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.0056 0.11 UG/M3 0.11 U EPD-WA-04-061523 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.054 U 0.011 0.054 UG/M3 0.054 U EPD-WA-04-061523 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.21 U 0.018 0.21 UG/M3 0.21 U EPD-WA-04-061523 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.078 J 0.0091 0.11 UG/M3 0.078 J EPD-WA-04-061523 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.16 U 0.072 0.16 UG/M3 0.16 U EPD-WA-04-061523 TO-15 SIM 71-43-2 BENZENE 0.84 0.072 0.22 UG/M3 0.84 EPD-WA-04-061523 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.49 0.023 0.17 UG/M3 0.49 EPD-WA-04-061523 TO-15 SIM 75-00-3 CHLOROETHANE 0.037 J 0.012 0.18 UG/M3 0.037 J EPD-WA-04-061523 TO-15 SIM 67-66-3 CHLOROFORM 0.11 J 0.01 0.13 UG/M3 0.11 J EPD-WA-04-061523 TO-15 SIM 74-87-3 CHLOROMETHANE 0.82 J 0.0086 1.4 UG/M3 1.4 U EPD-WA-04-061523 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.0093 0.11 UG/M3 0.11 U EPD-WA-04-061523 TO-15 SIM 100-41-4 ETHYL BENZENE 0.16 0.018 0.12 UG/M3 0.16 EPD-WA-04-061523 TO-15 SIM 76-14-2 FREON 114 0.12 J 0.0078 0.19 UG/M3 0.12 J Page 10 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-061523 TO-15 SIM 75-71-8 FREON 12 2.7 0.0056 0.34 UG/M3 2.7 EPD-WA-04-061523 TO-15 SIM 179601-23-1 M,P-XYLENE 0.43 0.053 0.24 UG/M3 0.43 EPD-WA-04-061523 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.49 U 0.0049 0.49 UG/M3 0.49 U EPD-WA-04-061523 TO-15 SIM 91-20-3 NAPHTHALENE 0.06 J 0.044 0.36 UG/M3 0.060 J EPD-WA-04-061523 TO-15 SIM 95-47-6 O-XYLENE 0.16 0.028 0.12 UG/M3 0.16 EPD-WA-04-061523 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.13 J 0.0072 0.18 UG/M3 0.18 U EPD-WA-04-061523 TO-15 SIM 108-88-3 TOLUENE 1.4 0.034 0.26 UG/M3 1.4 EPD-WA-04-061523 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 2 0.0094 0.54 UG/M3 2.0 J EPD-WA-04-061523 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.073 J 0.01 0.15 UG/M3 0.073 J EPD-WA-04-061523 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.11 0.0048 0.035 UG/M3 0.11 EPD-WA-05-061523 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.3 U 0.64 5.3 UG/M3 5.3 U EPD-WA-05-061523 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.13 J 0.1 0.7 UG/M3 0.13 J EPD-WA-05-061523 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.85 U 0.18 0.85 UG/M3 0.85 U EPD-WA-05-061523 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.66 U 0.13 0.66 UG/M3 0.66 U EPD-WA-05-061523 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.7 U 0.12 0.7 UG/M3 0.7 U EPD-WA-05-061523 TO-15 106-99-0 1,3-BUTADIENE 0.31 U 0.054 0.31 UG/M3 0.31 U EPD-WA-05-061523 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.85 U 0.1 0.85 UG/M3 0.85 U EPD-WA-05-061523 TO-15 123-91-1 1,4-DIOXANE 0.51 U 0.12 0.51 UG/M3 0.51 U EPD-WA-05-061523 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.35 J 0.3 3.3 UG/M3 0.35 J EPD-WA-05-061523 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.2 J 0.19 2.1 UG/M3 1.2 J EPD-WA-05-061523 TO-15 591-78-6 2-HEXANONE 2.9 U 0.16 2.9 UG/M3 2.9 U EPD-WA-05-061523 TO-15 67-63-0 2-PROPANOL 7 U 3.8 7 UG/M3 7.0 UJ EPD-WA-05-061523 TO-15 107-05-1 3-CHLOROPROPENE 2.2 U 0.21 2.2 UG/M3 2.2 U EPD-WA-05-061523 TO-15 622-96-8 4-ETHYLTOLUENE 0.7 U 0.09 0.7 UG/M3 0.70 U EPD-WA-05-061523 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.58 U 0.11 0.58 UG/M3 0.58 U EPD-WA-05-061523 TO-15 67-64-1 ACETONE 16 4.6 6.7 UG/M3 16 EPD-WA-05-061523 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.74 U 0.086 0.74 UG/M3 0.74 U EPD-WA-05-061523 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.95 U 0.082 0.95 UG/M3 0.95 U EPD-WA-05-061523 TO-15 75-25-2 BROMOFORM 1.5 U 0.34 1.5 UG/M3 1.5 U EPD-WA-05-061523 TO-15 74-83-9 BROMOMETHANE 28 U 0.34 28 UG/M3 28 U EPD-WA-05-061523 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.23 2.2 UG/M3 2.2 U EPD-WA-05-061523 TO-15 108-90-7 CHLOROBENZENE 0.65 U 0.061 0.65 UG/M3 0.65 U EPD-WA-05-061523 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.64 U 0.11 0.64 UG/M3 0.64 U EPD-WA-05-061523 TO-15 98-82-8 CUMENE 0.7 U 0.093 0.7 UG/M3 0.70 U EPD-WA-05-061523 TO-15 110-82-7 CYCLOHEXANE 2.4 U 0.098 2.4 UG/M3 2.4 U EPD-WA-05-061523 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.15 1.2 UG/M3 1.2 U EPD-WA-05-061523 TO-15 64-17-5 ETHANOL 4.9 J 2.8 16 UG/M3 4.9 J EPD-WA-05-061523 TO-15 75-69-4 FREON 11 1.6 0.1 0.8 UG/M3 1.6 EPD-WA-05-061523 TO-15 76-13-1 FREON 113 0.51 J 0.091 1.1 UG/M3 0.51 J Page 11 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-05-061523 TO-15 142-82-5 HEPTANE 2.9 U 0.23 2.9 UG/M3 2.9 U EPD-WA-05-061523 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.6 U 0.37 7.6 UG/M3 7.6 U EPD-WA-05-061523 TO-15 110-54-3 HEXANE 0.36 J 0.17 2.5 UG/M3 0.36 J EPD-WA-05-061523 TO-15 75-09-2 METHYLENE CHLORIDE 0.51 J 0.15 0.99 UG/M3 0.51 J EPD-WA-05-061523 TO-15 103-65-1 PROPYLBENZENE 0.7 U 0.078 0.7 UG/M3 0.70 U EPD-WA-05-061523 TO-15 100-42-5 STYRENE 0.6 U 0.092 0.6 UG/M3 0.60 U EPD-WA-05-061523 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 0.2 2.1 UG/M3 2.1 U EPD-WA-05-061523 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.64 U 0.097 0.64 UG/M3 0.64 U EPD-WA-05-061523 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-05-061523 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-05-061523 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.0068 0.15 UG/M3 0.15 U EPD-WA-05-061523 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.014 0.19 UG/M3 0.19 U EPD-WA-05-061523 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.0089 0.15 UG/M3 0.15 U EPD-WA-05-061523 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.0059 0.11 UG/M3 0.11 U EPD-WA-05-061523 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 U 0.012 0.056 UG/M3 0.056 U EPD-WA-05-061523 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.018 0.22 UG/M3 0.22 U EPD-WA-05-061523 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.082 J 0.0095 0.11 UG/M3 0.082 J EPD-WA-05-061523 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.075 0.17 UG/M3 0.17 U EPD-WA-05-061523 TO-15 SIM 71-43-2 BENZENE 0.54 0.075 0.23 UG/M3 0.54 EPD-WA-05-061523 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.51 0.024 0.18 UG/M3 0.51 EPD-WA-05-061523 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.013 0.19 UG/M3 0.19 U EPD-WA-05-061523 TO-15 SIM 67-66-3 CHLOROFORM 0.13 J 0.011 0.14 UG/M3 0.13 J EPD-WA-05-061523 TO-15 SIM 74-87-3 CHLOROMETHANE 0.8 J 0.009 1.5 UG/M3 1.5 U EPD-WA-05-061523 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.0097 0.11 UG/M3 0.11 U EPD-WA-05-061523 TO-15 SIM 100-41-4 ETHYL BENZENE 0.13 0.019 0.12 UG/M3 0.13 EPD-WA-05-061523 TO-15 SIM 76-14-2 FREON 114 0.13 J 0.0081 0.2 UG/M3 0.13 J EPD-WA-05-061523 TO-15 SIM 75-71-8 FREON 12 2.8 0.0058 0.35 UG/M3 2.8 EPD-WA-05-061523 TO-15 SIM 179601-23-1 M,P-XYLENE 0.37 0.055 0.25 UG/M3 0.37 EPD-WA-05-061523 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.51 U 0.0051 0.51 UG/M3 0.51 U EPD-WA-05-061523 TO-15 SIM 91-20-3 NAPHTHALENE 0.37 U 0.046 0.37 UG/M3 0.37 U EPD-WA-05-061523 TO-15 SIM 95-47-6 O-XYLENE 0.14 0.03 0.12 UG/M3 0.14 EPD-WA-05-061523 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.17 J 0.0075 0.19 UG/M3 0.19 U EPD-WA-05-061523 TO-15 SIM 108-88-3 TOLUENE 1.2 0.036 0.27 UG/M3 1.2 EPD-WA-05-061523 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.56 U 0.0098 0.56 UG/M3 0.56 U EPD-WA-05-061523 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.065 J 0.011 0.15 UG/M3 0.065 J EPD-WA-05-061523 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.036 U 0.005 0.036 UG/M3 0.036 U EPD-WA-06-061523 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.3 U 0.65 5.3 UG/M3 5.3 U EPD-WA-06-061523 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 1.3 0.1 0.71 UG/M3 1.3 EPD-WA-06-061523 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.86 U 0.18 0.86 UG/M3 0.86 U Page 12 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-06-061523 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.66 U 0.13 0.66 UG/M3 0.66 U EPD-WA-06-061523 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.48 J 0.13 0.71 UG/M3 0.48 J EPD-WA-06-061523 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.055 0.32 UG/M3 0.32 U EPD-WA-06-061523 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.86 U 0.1 0.86 UG/M3 0.86 U EPD-WA-06-061523 TO-15 123-91-1 1,4-DIOXANE 0.52 U 0.13 0.52 UG/M3 0.52 U EPD-WA-06-061523 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 1.2 J 0.3 3.4 UG/M3 1.2 J EPD-WA-06-061523 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.82 J 0.19 2.1 UG/M3 0.82 J EPD-WA-06-061523 TO-15 591-78-6 2-HEXANONE 2.9 U 0.16 2.9 UG/M3 2.9 U EPD-WA-06-061523 TO-15 67-63-0 2-PROPANOL 7.1 U 3.8 7.1 UG/M3 7.1 UJ EPD-WA-06-061523 TO-15 107-05-1 3-CHLOROPROPENE 2.2 U 0.21 2.2 UG/M3 2.2 U EPD-WA-06-061523 TO-15 622-96-8 4-ETHYLTOLUENE 1.3 0.091 0.71 UG/M3 1.3 EPD-WA-06-061523 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.59 U 0.11 0.59 UG/M3 0.59 U EPD-WA-06-061523 TO-15 67-64-1 ACETONE 120 4.7 6.8 UG/M3 120 EPD-WA-06-061523 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.74 U 0.087 0.74 UG/M3 0.74 U EPD-WA-06-061523 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.96 U 0.083 0.96 UG/M3 0.96 U EPD-WA-06-061523 TO-15 75-25-2 BROMOFORM 1.5 U 0.35 1.5 UG/M3 1.5 U EPD-WA-06-061523 TO-15 74-83-9 BROMOMETHANE 28 U 0.34 28 UG/M3 28 U EPD-WA-06-061523 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.24 2.2 UG/M3 2.2 U EPD-WA-06-061523 TO-15 108-90-7 CHLOROBENZENE 0.66 U 0.062 0.66 UG/M3 0.66 U EPD-WA-06-061523 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.65 U 0.11 0.65 UG/M3 0.65 U EPD-WA-06-061523 TO-15 98-82-8 CUMENE 0.14 J 0.094 0.71 UG/M3 0.14 J EPD-WA-06-061523 TO-15 110-82-7 CYCLOHEXANE 1 J 0.1 2.5 UG/M3 1.0 J EPD-WA-06-061523 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.15 1.2 UG/M3 1.2 U EPD-WA-06-061523 TO-15 64-17-5 ETHANOL 7.4 J 2.8 17 UG/M3 7.4 J EPD-WA-06-061523 TO-15 75-69-4 FREON 11 1.4 0.1 0.81 UG/M3 1.4 EPD-WA-06-061523 TO-15 76-13-1 FREON 113 0.51 J 0.093 1.1 UG/M3 0.51 J EPD-WA-06-061523 TO-15 142-82-5 HEPTANE 1.5 J 0.23 3 UG/M3 1.5 J EPD-WA-06-061523 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.7 U 0.38 7.7 UG/M3 7.7 U EPD-WA-06-061523 TO-15 110-54-3 HEXANE 1.3 J 0.17 2.5 UG/M3 1.3 J EPD-WA-06-061523 TO-15 75-09-2 METHYLENE CHLORIDE 0.59 J 0.15 1 UG/M3 0.59 J EPD-WA-06-061523 TO-15 103-65-1 PROPYLBENZENE 0.33 J 0.079 0.71 UG/M3 0.33 J EPD-WA-06-061523 TO-15 100-42-5 STYRENE 0.61 U 0.093 0.61 UG/M3 0.61 U EPD-WA-06-061523 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 0.21 2.1 UG/M3 2.1 U EPD-WA-06-061523 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.65 U 0.098 0.65 UG/M3 0.65 U EPD-WA-06-061523 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U,NF EPD-WA-06-061523 TO-15 78-78-4 BUTANE, 2-METHYL- 1 NJ PPBV 1.0 NJ EPD-WA-06-061523 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U,NF EPD-WA-06-061523 TO-15 108-87-2 CYCLOHEXANE, METHYL- 1.1 NJ PPBV 1.1 NJ EPD-WA-06-061523 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.0069 0.16 UG/M3 0.16 U Page 13 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-06-061523 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.014 0.2 UG/M3 0.20 U EPD-WA-06-061523 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.009 0.16 UG/M3 0.16 U EPD-WA-06-061523 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.0059 0.12 UG/M3 0.12 U EPD-WA-06-061523 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.057 U 0.012 0.057 UG/M3 0.057 U EPD-WA-06-061523 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.019 0.22 UG/M3 0.22 U EPD-WA-06-061523 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.088 J 0.0096 0.12 UG/M3 0.088 J EPD-WA-06-061523 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.076 0.17 UG/M3 0.17 U EPD-WA-06-061523 TO-15 SIM 71-43-2 BENZENE 1.1 0.076 0.23 UG/M3 1.1 EPD-WA-06-061523 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.51 0.024 0.18 UG/M3 0.51 EPD-WA-06-061523 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.013 0.19 UG/M3 0.19 U EPD-WA-06-061523 TO-15 SIM 67-66-3 CHLOROFORM 0.14 0.011 0.14 UG/M3 0.14 EPD-WA-06-061523 TO-15 SIM 74-87-3 CHLOROMETHANE 0.8 J 0.0092 1.5 UG/M3 1.5 U EPD-WA-06-061523 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.0099 0.11 UG/M3 0.11 U EPD-WA-06-061523 TO-15 SIM 100-41-4 ETHYL BENZENE 0.84 0.02 0.12 UG/M3 0.84 EPD-WA-06-061523 TO-15 SIM 76-14-2 FREON 114 0.13 J 0.0082 0.2 UG/M3 0.13 J EPD-WA-06-061523 TO-15 SIM 75-71-8 FREON 12 2.8 0.0059 0.36 UG/M3 2.8 EPD-WA-06-061523 TO-15 SIM 179601-23-1 M,P-XYLENE 2.3 0.056 0.25 UG/M3 2.3 EPD-WA-06-061523 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.52 U 0.0052 0.52 UG/M3 0.52 U EPD-WA-06-061523 TO-15 SIM 91-20-3 NAPHTHALENE 0.13 J 0.046 0.38 UG/M3 0.13 J EPD-WA-06-061523 TO-15 SIM 95-47-6 O-XYLENE 0.92 0.03 0.12 UG/M3 0.92 EPD-WA-06-061523 TO-15 SIM 127-18-4 TETRACHLOROETHENE 180 0.0076 0.2 UG/M3 180 EPD-WA-06-061523 TO-15 SIM 108-88-3 TOLUENE 13 0.036 0.27 UG/M3 13 EPD-WA-06-061523 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.57 U 0.0099 0.57 UG/M3 0.57 U EPD-WA-06-061523 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.024 J 0.011 0.15 UG/M3 0.024 J EPD-WA-06-061523 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.037 U 0.0051 0.037 UG/M3 0.037 U EPD-WA-44-061523 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.2 U 0.63 5.2 UG/M3 5.2 U EPD-WA-44-061523 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.13 J 0.1 0.69 UG/M3 0.13 J EPD-WA-44-061523 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.85 U 0.17 0.85 UG/M3 0.85 U EPD-WA-44-061523 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.65 U 0.13 0.65 UG/M3 0.65 U EPD-WA-44-061523 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.69 U 0.12 0.69 UG/M3 0.69 U EPD-WA-44-061523 TO-15 106-99-0 1,3-BUTADIENE 0.31 U 0.054 0.31 UG/M3 0.31 U EPD-WA-44-061523 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.85 U 0.1 0.85 UG/M3 0.85 U EPD-WA-44-061523 TO-15 123-91-1 1,4-DIOXANE 0.51 U 0.12 0.51 UG/M3 0.51 U EPD-WA-44-061523 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.47 J 0.3 3.3 UG/M3 0.47 J EPD-WA-44-061523 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.76 J 0.19 2.1 UG/M3 0.76 J EPD-WA-44-061523 TO-15 591-78-6 2-HEXANONE 2.9 U 0.15 2.9 UG/M3 2.9 U EPD-WA-44-061523 TO-15 67-63-0 2-PROPANOL 6.9 U 3.7 6.9 UG/M3 6.9 UJ EPD-WA-44-061523 TO-15 107-05-1 3-CHLOROPROPENE 2.2 U 0.21 2.2 UG/M3 2.2 U EPD-WA-44-061523 TO-15 622-96-8 4-ETHYLTOLUENE 0.15 J 0.089 0.69 UG/M3 0.15 J Page 14 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-44-061523 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.58 U 0.11 0.58 UG/M3 0.58 U EPD-WA-44-061523 TO-15 67-64-1 ACETONE 11 4.6 6.7 UG/M3 11 EPD-WA-44-061523 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.73 U 0.085 0.73 UG/M3 0.73 U EPD-WA-44-061523 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.94 U 0.081 0.94 UG/M3 0.94 U EPD-WA-44-061523 TO-15 75-25-2 BROMOFORM 1.4 U 0.34 1.4 UG/M3 1.4 U EPD-WA-44-061523 TO-15 74-83-9 BROMOMETHANE 27 U 0.33 27 UG/M3 27 U EPD-WA-44-061523 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.23 2.2 UG/M3 2.2 U EPD-WA-44-061523 TO-15 108-90-7 CHLOROBENZENE 0.65 U 0.06 0.65 UG/M3 0.65 U EPD-WA-44-061523 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.64 U 0.1 0.64 UG/M3 0.64 U EPD-WA-44-061523 TO-15 98-82-8 CUMENE 0.69 U 0.093 0.69 UG/M3 0.69 U EPD-WA-44-061523 TO-15 110-82-7 CYCLOHEXANE 2.4 U 0.098 2.4 UG/M3 2.4 U EPD-WA-44-061523 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.14 1.2 UG/M3 1.2 U EPD-WA-44-061523 TO-15 64-17-5 ETHANOL 4.9 J 2.8 16 UG/M3 4.9 J EPD-WA-44-061523 TO-15 75-69-4 FREON 11 1.5 0.1 0.79 UG/M3 1.5 EPD-WA-44-061523 TO-15 76-13-1 FREON 113 0.46 J 0.091 1.1 UG/M3 0.46 J EPD-WA-44-061523 TO-15 142-82-5 HEPTANE 0.3 J 0.23 2.9 UG/M3 0.30 J EPD-WA-44-061523 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.5 U 0.37 7.5 UG/M3 7.5 U EPD-WA-44-061523 TO-15 110-54-3 HEXANE 0.62 J 0.17 2.5 UG/M3 0.62 J EPD-WA-44-061523 TO-15 75-09-2 METHYLENE CHLORIDE 0.51 J 0.15 0.98 UG/M3 0.51 J EPD-WA-44-061523 TO-15 103-65-1 PROPYLBENZENE 0.69 U 0.078 0.69 UG/M3 0.69 U EPD-WA-44-061523 TO-15 100-42-5 STYRENE 0.13 J 0.091 0.6 UG/M3 0.13 J EPD-WA-44-061523 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 0.2 2.1 UG/M3 2.1 U EPD-WA-44-061523 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.64 U 0.096 0.64 UG/M3 0.64 U EPD-WA-44-061523 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-44-061523 TO-15 78-78-4 BUTANE, 2-METHYL- 0.82 NJ PPBV 0.82 NJ EPD-WA-44-061523 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-44-061523 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.0068 0.15 UG/M3 0.15 U EPD-WA-44-061523 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.014 0.19 UG/M3 0.19 U EPD-WA-44-061523 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.0088 0.15 UG/M3 0.15 U EPD-WA-44-061523 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.0058 0.11 UG/M3 0.11 U EPD-WA-44-061523 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 U 0.012 0.056 UG/M3 0.056 U EPD-WA-44-061523 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.018 0.22 UG/M3 0.22 U EPD-WA-44-061523 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.08 J 0.0094 0.11 UG/M3 0.080 J EPD-WA-44-061523 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.075 0.17 UG/M3 0.17 U EPD-WA-44-061523 TO-15 SIM 71-43-2 BENZENE 0.8 0.075 0.22 UG/M3 0.80 EPD-WA-44-061523 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.49 0.024 0.18 UG/M3 0.49 EPD-WA-44-061523 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.013 0.19 UG/M3 0.19 U EPD-WA-44-061523 TO-15 SIM 67-66-3 CHLOROFORM 0.11 J 0.011 0.14 UG/M3 0.11 J EPD-WA-44-061523 TO-15 SIM 74-87-3 CHLOROMETHANE 0.8 J 0.009 1.4 UG/M3 1.4 U Page 15 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306335 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-44-061523 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.0097 0.11 UG/M3 0.11 U EPD-WA-44-061523 TO-15 SIM 100-41-4 ETHYL BENZENE 0.15 0.019 0.12 UG/M3 0.15 EPD-WA-44-061523 TO-15 SIM 76-14-2 FREON 114 0.12 J 0.0081 0.2 UG/M3 0.12 J EPD-WA-44-061523 TO-15 SIM 75-71-8 FREON 12 2.7 0.0058 0.35 UG/M3 2.7 EPD-WA-44-061523 TO-15 SIM 179601-23-1 M,P-XYLENE 0.42 0.055 0.24 UG/M3 0.42 EPD-WA-44-061523 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.51 U 0.0051 0.51 UG/M3 0.51 U EPD-WA-44-061523 TO-15 SIM 91-20-3 NAPHTHALENE 0.37 U 0.045 0.37 UG/M3 0.37 U EPD-WA-44-061523 TO-15 SIM 95-47-6 O-XYLENE 0.16 0.029 0.12 UG/M3 0.16 EPD-WA-44-061523 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.13 J 0.0075 0.19 UG/M3 0.19 U EPD-WA-44-061523 TO-15 SIM 108-88-3 TOLUENE 1.2 0.036 0.26 UG/M3 1.2 EPD-WA-44-061523 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.56 U 0.0097 0.56 UG/M3 0.56 UJ EPD-WA-44-061523 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.043 J 0.011 0.15 UG/M3 0.043 J EPD-WA-44-061523 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.12 0.005 0.036 UG/M3 0.12 Page 16 of 16 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Site Name E Palestine Site - ER TO/TOLIN No. 68HE0520F0032/000IEB201 Document Tracking No. 1933b Laboratory Report No. 2306351 Laboratory Eurofins Air Toxics, LLC, Folsom CA Analyses Volatile organic compounds (VOCs) by EPA method TO-15 in scan anc selected ion monitoring (SIM) modes Samples and Matrix Nine air samples, including one field duplicate Collection Date(s) 6/16/2023 Field Duplicate Pairs EPD-WA-55-061623/EPD-WA-05-061623 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 East Palestine Train Derailment Site East Palestine, Columbiana County, Ohio, Revision 3 (April 2023), 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 sample/laboratory control sample duplicate relative percent differences (RPD) were not provided in the Level II laboratory report. The lab provided the RPDs separately. No qualifications were applied. 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/pressure values in the laboratory report were recorded as positive values. The laboratory was contacted and confirmed that all values are negative, even though the minus signs are missing, and that the laboratory uses 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. The field-measured residual canister vacuum listed on the chain of custody for EPD-WA-55-061623 was -14"Hg and the receipt laboratory-measured residual vacuum listed on the laboratory summary was -13.5"Hg. The residual vacuum value suggests that the canister filled more slowly than intended over the allotted time and therefore the sample volume is lower than planned. The lower volume may have affected the analytical sensitivity (possibly leading to an elevated method detection limit (MDL) and reporting limit (RL) values). The sample may not be representative of the full collection period, therefore analytical results for EPD-WA-55- 061623 should be used with caution. Method blanks: Within Criteria Exceedance/Notes N TO-15 (2306351-10A): Methylene chloride and tetrahydrofuran were detected at levels between the method detection limit (MDL) and reporting limit (RL). Methylene chloride results in EPD-DW-B-061623 and EPD-WA-03-061623 and the tetrahydrofuran result in EPD-WA-03-061623 were qualified as nondetect (flagged U) at the RL. 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 N EPD-WA-55-061623/EPD-WA-05-061623: A high relative percent difference (RPD) exists between acetone results in the field duplicate pair; therefore the acetone results in both samples were qualified as estimated (flagged J) in both samples. LCSs/LCSDs: Within Criteria Exceedance/Notes N TO-15 SIM (2306351-12B/2306351-12BB): The percent recoveries of 1,4-dichlorobenzene were less than the QC control limits in both the LCS and LCSD. 1,4-Dichlorobenzene results in EPD-DW-B-061623, EPD-WA-03-061623, AND EPD-WA-55-061623 were qualified as estimated with possible low bias (flagged UJ). TO-15 scan (2306351-12C/2306351-12CC): The percent recoveries of ethanol were above the QC control limits in both the LCS and LCSD. Ethanol results in EPD-UW-F-061623, EPD-WA-01-061623, EPD-WA-02-061623, EPD-WA-04-061623, EPD-WA-05-061623, and EPD-WA-06-061623 were qualified as estimated with possible high bias (flagged J+). 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-DW-B-061623 was 1.58 • EPD-UW-F-061623 was 1.47 • EPD-WA-01-061623 was 1.50 • EPD-WA-02-061623 was 1.35 • EPD-WA-03-061623 was 1.47 • EPD-WA-04-061623 was 1.50 • EPD-WA-05-061623 was 1.49 • EPD-WA-06-061623 was 1.52 • EPD-WA-55-061623 was 2.05 Re-extraction and reanalysis: Within Criteria Exceedance/Notes NA MDLs/RLs: Within Criteria Exceedance/Notes Y Per the case narrative, "The reporting limit for Ethanol was raised from 2.0 ppbv to 6.2 ppbv due to anomalous linearity in the Initial Calibration." Detections between the MDL and RL were reported and qualified as estimated (flagged J) by the laboratory. TETRA TECH Page 4 of 5 ------- 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 most samples. The known TICs were qualified as tentatively identified (flagged NJ). The unknown TICs were qualified as estimated (flagged J). 2-Ethyl-l-hexanol and butyl acrylate in all samples were reported as nondetect and qualified as manually searched for, but not found in the sample (flagged U, NF). Other [Continuing Calibration]: Within Criteria Exceedance/Notes N CCV (2306351-11B) had low percent recovery of 1,4-dichlorobenzene. 1,4-Dichlorobenzene results in EPD-DW-B-061623, EPD-WA- 03-061623, and EPD-WA-55-061623 were qualified by the laboratory as estimated (flagged UJ) by the laboratory. No further qualification was applied. Overall Qualifications: See results summary pages attached for changes to the laboratory qualifiers based upon this validation. The following 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 quality control criteria. TETRA TECH Page 5 of 5 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result J < > EPD-DW-B-061623 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.9 U 1.4 5.9 UG/M3 5.9 U EPD-DW-B-061623 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.78 U 0.23 0.78 UG/M3 0.78 u EPD-DW-B-061623 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.95 U 0.11 0.95 UG/M3 0.95 u EPD-DW-B-061623 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.73 U 0.12 0.73 UG/M3 0.73 u EPD-DW-B-061623 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.78 U 0.15 0.78 UG/M3 0.78 u EPD-DW-B-061623 TO-15 106-99-0 1,3-BUTADIENE 0.35 U 0.034 0.35 UG/M3 0.35 u EPD-DW-B-061623 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.95 U 0.11 0.95 UG/M3 0.95 u EPD-DW-B-061623 TO-15 123-91-1 1,4-DIOXANE 0.57 U 0.09 0.57 UG/M3 0.57 u EPD-DW-B-061623 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.7 U 0.6 3.7 UG/M3 3.7 u EPD-DW-B-061623 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 2.3 U 0.36 2.3 UG/M3 2.3 u EPD-DW-B-061623 TO-15 591-78-6 2-HEXANONE 3.2 U 0.5 3.2 UG/M3 3.2 u EPD-DW-B-061623 TO-15 67-63-0 2-PROPANOL 7.8 U 0.44 7.8 UG/M3 7.8 u EPD-DW-B-061623 TO-15 107-05-1 3-CHLOROPROPENE 2.5 U 0.49 2.5 UG/M3 2.5 u EPD-DW-B-061623 TO-15 622-96-8 4-ETHYLTOLUENE 0.78 U 0.15 0.78 UG/M3 0.78 u EPD-DW-B-061623 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.65 U 0.23 0.65 UG/M3 0.65 u EPD-DW-B-061623 TO-15 67-64-1 ACETONE 8.6 0.86 7.5 UG/M3 8.6 EPD-DW-B-061623 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.82 U 0.15 0.82 UG/M3 0.82 u EPD-DW-B-061623 TO-15 75-27-4 BROMODICHLOROMETHANE 1 U 0.16 1 UG/M3 1.0 u EPD-DW-B-061623 TO-15 75-25-2 BROMOFORM 1.6 U 0.45 1.6 UG/M3 1.6 u EPD-DW-B-061623 TO-15 74-83-9 BROMOMETHANE 31 U 0.88 31 UG/M3 31 u EPD-DW-B-061623 TO-15 75-15-0 CARBON DISULFIDE 2.5 U 0.7 2.5 UG/M3 2.5 u EPD-DW-B-061623 TO-15 108-90-7 CHLOROBENZENE 0.73 U 0.057 0.73 UG/M3 0.73 u EPD-DW-B-061623 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.72 U 0.14 0.72 UG/M3 0.72 u EPD-DW-B-061623 TO-15 98-82-8 CUMENE 0.78 U 0.098 0.78 UG/M3 0.78 u EPD-DW-B-061623 TO-15 110-82-7 CYCLOHEXANE 2.7 U 0.26 2.7 UG/M3 2.7 u EPD-DW-B-061623 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.24 1.3 UG/M3 1.3 u EPD-DW-B-061623 TO-15 64-17-5 ETHANOL 18 U 0.72 18 UG/M3 18 u EPD-DW-B-061623 TO-15 75-69-4 FREON 11 1 0.07 0.89 UG/M3 1.0 EPD-DW-B-061623 TO-15 76-13-1 FREON 113 0.45 J 0.21 1.2 UG/M3 0.45 J EPD-DW-B-061623 TO-15 142-82-5 HEPTANE 3.2 U 0.4 3.2 UG/M3 3.2 u EPD-DW-B-061623 TO-15 87-68-3 HEXACHLOROBUTADIENE 8.4 U 0.84 8.4 UG/M3 8.4 U EPD-DW-B-061623 TO-15 110-54-3 HEXANE 2.8 U 0.43 2.8 UG/M3 2.8 U EPD-DW-B-061623 TO-15 75-09-2 METHYLENE CHLORIDE 0.66 J 0.62 1.1 UG/M3 1.1 U EPD-DW-B-061623 TO-15 103-65-1 PROPYLBENZENE 0.78 U 0.17 0.78 UG/M3 0.78 U EPD-DW-B-061623 TO-15 100-42-5 STYRENE 0.67 U 0.098 0.67 UG/M3 0.67 U Page 1 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_ _Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-DW-B-061623 TO-15 109-99-9 TETRAHYDROFURAN 2.3 U 0.38 2.3 UG/M3 2.3 U EPD-DW-B-061623 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.72 U 0.18 0.72 UG/M3 0.72 U EPD-DW-B-061623 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-DW-B-061623 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-DW-B-061623 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.17 U 0.014 0.17 UG/M3 0.17 U EPD-DW-B-061623 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.22 U 0.053 0.22 UG/M3 0.22 U EPD-DW-B-061623 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.17 U 0.02 0.17 UG/M3 0.17 U EPD-DW-B-061623 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.13 U 0.013 0.13 UG/M3 0.13 U EPD-DW-B-061623 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.063 U 0.016 0.063 UG/M3 0.063 U EPD-DW-B-061623 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.24 U 0.033 0.24 UG/M3 0.24 U EPD-DW-B-061623 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.047 J 0.015 0.13 UG/M3 0.047 J EPD-DW-B-061623 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.19 UJ 0.082 0.19 UG/M3 0.19 UJ EPD-DW-B-061623 TO-15 SIM 71-43-2 BENZENE 0.34 0.025 0.25 UG/M3 0.34 EPD-DW-B-061623 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.39 0.014 0.2 UG/M3 0.39 EPD-DW-B-061623 TO-15 SIM 75-00-3 CHLOROETHANE 0.21 U 0.011 0.21 UG/M3 0.21 U EPD-DW-B-061623 TO-15 SIM 67-66-3 CHLOROFORM 0.074 J 0.016 0.15 UG/M3 0.074 J EPD-DW-B-061623 TO-15 SIM 74-87-3 CHLOROMETHANE 0.73 J 0.2 1.6 UG/M3 0.73 J EPD-DW-B-061623 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.016 0.12 UG/M3 0.12 U EPD-DW-B-061623 TO-15 SIM 100-41-4 ETHYL BENZENE 0.045 J 0.02 0.14 UG/M3 0.045 J EPD-DW-B-061623 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.024 0.22 UG/M3 0.10 J EPD-DW-B-061623 TO-15 SIM 75-71-8 FREON 12 2 0.016 0.39 UG/M3 2.0 EPD-DW-B-061623 TO-15 SIM 179601-23-1 M,P-XYLENE 0.16 J 0.027 0.27 UG/M3 0.16 J EPD-DW-B-061623 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.57 U 0.01 0.57 UG/M3 0.57 U EPD-DW-B-061623 TO-15 SIM 91-20-3 NAPHTHALENE 0.41 U 0.12 0.41 UG/M3 0.41 U EPD-DW-B-061623 TO-15 SIM 95-47-6 O-XYLENE 0.065 J 0.023 0.14 UG/M3 0.065 J EPD-DW-B-061623 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.031 J 0.031 0.21 UG/M3 0.031 J EPD-DW-B-061623 TO-15 SIM 108-88-3 TOLUENE 0.34 0.021 0.3 UG/M3 0.34 EPD-DW-B-061623 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.38 J 0.009 0.63 UG/M3 0.38 J EPD-DW-B-061623 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.17 U 0.028 0.17 UG/M3 0.17 U EPD-DW-B-061623 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.04 U 0.011 0.04 UG/M3 0.040 U EPD-UW-F-061623 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 1.2 5.4 UG/M3 5.4 U EPD-UW-F-061623 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.72 U 0.17 0.72 UG/M3 0.72 U EPD-UW-F-061623 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.88 U 0.14 0.88 UG/M3 0.88 U EPD-UW-F-061623 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.68 U 0.14 0.68 UG/M3 0.68 U EPD-UW-F-061623 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.72 U 0.14 0.72 UG/M3 0.72 U Page 2 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_ _Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-UW-F-061623 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.045 0.32 UG/M3 0.32 U EPD-UW-F-061623 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.88 U 0.088 0.88 UG/M3 0.88 U EPD-UW-F-061623 TO-15 123-91-1 1,4-DIOXANE 0.2 J 0.076 0.53 UG/M3 0.20 J EPD-UW-F-061623 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.25 J 0.22 3.4 UG/M3 0.25 J EPD-UW-F-061623 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.66 J 0.37 2.2 UG/M3 0.66 J EPD-UW-F-061623 TO-15 591-78-6 2-HEXANONE 3 U 0.57 3 UG/M3 3.0 U EPD-UW-F-061623 TO-15 67-63-0 2-PROPANOL 7.2 U 0.17 7.2 UG/M3 7.2 U EPD-UW-F-061623 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.2 2.3 UG/M3 2.3 U EPD-UW-F-061623 TO-15 622-96-8 4-ETHYLTOLUENE 0.72 U 0.12 0.72 UG/M3 0.72 U EPD-UW-F-061623 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.6 U 0.18 0.6 UG/M3 0.60 U EPD-UW-F-061623 TO-15 67-64-1 ACETONE 7.4 0.52 7 UG/M3 7.4 EPD-UW-F-061623 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.76 U 0.22 0.76 UG/M3 0.76 U EPD-UW-F-061623 TO-15 75-27-4 BROMODICHLOROMETHANE 0.98 U 0.12 0.98 UG/M3 0.98 U EPD-UW-F-061623 TO-15 75-25-2 BROMOFORM 1.5 U 0.14 1.5 UG/M3 1.5 U EPD-UW-F-061623 TO-15 74-83-9 BROMOMETHANE 28 U 1.4 28 UG/M3 28 U EPD-UW-F-061623 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.1 2.3 UG/M3 2.3 U EPD-UW-F-061623 TO-15 108-90-7 CHLOROBENZENE 0.68 U 0.078 0.68 UG/M3 0.68 U EPD-UW-F-061623 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.67 U 0.18 0.67 UG/M3 0.67 U EPD-UW-F-061623 TO-15 98-82-8 CUMENE 0.72 U 0.067 0.72 UG/M3 0.72 U EPD-UW-F-061623 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.43 2.5 UG/M3 2.5 U EPD-UW-F-061623 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.18 1.2 UG/M3 1.2 U EPD-UW-F-061623 TO-15 64-17-5 ETHANOL 2.2 J 0.7 17 UG/M3 2.2 J+ EPD-UW-F-061623 TO-15 75-69-4 FREON 11 1.3 0.12 0.82 UG/M3 1.3 EPD-UW-F-061623 TO-15 76-13-1 FREON 113 0.43 J 0.12 1.1 UG/M3 0.43 J EPD-UW-F-061623 TO-15 142-82-5 HEPTANE 3 U 0.42 3 UG/M3 3.0 U EPD-UW-F-061623 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.8 U 0.52 7.8 UG/M3 7.8 U EPD-UW-F-061623 TO-15 110-54-3 HEXANE 2.6 U 0.23 2.6 UG/M3 2.6 U EPD-UW-F-061623 TO-15 75-09-2 METHYLENE CHLORIDE 0.4 J 0.32 1 UG/M3 0.40 J EPD-UW-F-061623 TO-15 103-65-1 PROPYLBENZENE 0.72 U 0.17 0.72 UG/M3 0.72 U EPD-UW-F-061623 TO-15 100-42-5 STYRENE 0.63 U 0.1 0.63 UG/M3 0.63 U EPD-UW-F-061623 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.37 2.2 UG/M3 2.2 U EPD-UW-F-061623 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.67 u 0.14 0.67 UG/M3 0.67 U EPD-UW-F-061623 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 u PPBV 0 U, NF EPD-UW-F-061623 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 u PPBV 0 U, NF EPD-UW-F-061623 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 u 0.021 0.16 UG/M3 0.16 U Page 3 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-UW-F-061623 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.086 0.2 UG/M3 0.20 U EPD-UW-F-061623 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.055 0.16 UG/M3 0.16 U EPD-UW-F-061623 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.017 0.12 UG/M3 0.12 U EPD-UW-F-061623 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.058 U 0.022 0.058 UG/M3 0.058 U EPD-UW-F-061623 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.08 0.22 UG/M3 0.22 U EPD-UW-F-061623 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.069 J 0.03 0.12 UG/M3 0.069 J EPD-UW-F-061623 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.062 0.18 UG/M3 0.18 U EPD-UW-F-061623 TO-15 SIM 71-43-2 BENZENE 0.46 0.026 0.23 UG/M3 0.46 EPD-UW-F-061623 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.5 0.039 0.18 UG/M3 0.50 EPD-UW-F-061623 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.021 0.19 UG/M3 0.19 U EPD-UW-F-061623 TO-15 SIM 67-66-3 CHLOROFORM 0.079 J 0.021 0.14 UG/M3 0.079 J EPD-UW-F-061623 TO-15 SIM 74-87-3 CHLOROMETHANE 0.91 J 0.3 1.5 UG/M3 0.91 J EPD-UW-F-061623 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.011 0.12 UG/M3 0.12 U EPD-UW-F-061623 TO-15 SIM 100-41-4 ETHYL BENZENE 0.072 J 0.012 0.13 UG/M3 0.072 J EPD-UW-F-061623 TO-15 SIM 76-14-2 FREON 114 0.11 J 0.017 0.2 UG/M3 0.11 J EPD-UW-F-061623 TO-15 SIM 75-71-8 FREON 12 2.4 0.027 0.36 UG/M3 2.4 EPD-UW-F-061623 TO-15 SIM 179601-23-1 M,P-XYLENE 0.24 J 0.008 0.26 UG/M3 0.24 J EPD-UW-F-061623 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.53 U 0.014 0.53 UG/M3 0.53 U EPD-UW-F-061623 TO-15 SIM 91-20-3 NAPHTHALENE 0.38 U 0.11 0.38 UG/M3 0.38 U EPD-UW-F-061623 TO-15 SIM 95-47-6 O-XYLENE 0.093 J 0.011 0.13 UG/M3 0.093 J EPD-UW-F-061623 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.15 J 0.11 0.2 UG/M3 0.15 J EPD-UW-F-061623 TO-15 SIM 108-88-3 TOLUENE 0.55 0.014 0.28 UG/M3 0.55 EPD-UW-F-061623 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.58 U 0.013 0.58 UG/M3 0.58 U EPD-UW-F-061623 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-UW-F-061623 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.038 U 0.011 0.038 UG/M3 0.038 U EPD-WA-01-061623 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.6 U 1.2 5.6 UG/M3 5.6 U EPD-WA-01-061623 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.74 U 0.18 0.74 UG/M3 0.74 U EPD-WA-01-061623 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.9 U 0.14 0.9 UG/M3 0.90 U EPD-WA-01-061623 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.69 U 0.14 0.69 UG/M3 0.69 U EPD-WA-01-061623 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.74 U 0.15 0.74 UG/M3 0.74 U EPD-WA-01-061623 TO-15 106-99-0 1,3-BUTADIENE 0.33 U 0.046 0.33 UG/M3 0.33 U EPD-WA-01-061623 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.9 U 0.09 0.9 UG/M3 0.90 U EPD-WA-01-061623 TO-15 123-91-1 1,4-DIOXANE 0.15 J 0.078 0.54 UG/M3 0.15 J EPD-WA-01-061623 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.5 U 0.23 3.5 UG/M3 3.5 U EPD-WA-01-061623 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.66 J 0.38 2.2 UG/M3 0.66 J Page 4 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_ _Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-01-061623 TO-15 591-78-6 2-HEXANONE 3.1 U 0.58 3.1 UG/M3 3.1 U EPD-WA-01-061623 TO-15 67-63-0 2-PROPANOL 7.4 U 0.18 7.4 UG/M3 7.4 U EPD-WA-01-061623 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.21 2.3 UG/M3 2.3 U EPD-WA-01-061623 TO-15 622-96-8 4-ETHYLTOLUENE 0.74 U 0.12 0.74 UG/M3 0.74 U EPD-WA-01-061623 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.61 U 0.19 0.61 UG/M3 0.61 U EPD-WA-01-061623 TO-15 67-64-1 ACETONE 7.9 0.53 7.1 UG/M3 7.9 EPD-WA-01-061623 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.78 U 0.22 0.78 UG/M3 0.78 U EPD-WA-01-061623 TO-15 75-27-4 BROMODICHLOROMETHANE 1 U 0.13 1 UG/M3 1.0 U EPD-WA-01-061623 TO-15 75-25-2 BROMOFORM 1.6 U 0.15 1.6 UG/M3 1.6 U EPD-WA-01-061623 TO-15 74-83-9 BROMOMETHANE 29 U 1.4 29 UG/M3 29 U EPD-WA-01-061623 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.1 2.3 UG/M3 2.3 U EPD-WA-01-061623 TO-15 108-90-7 CHLOROBENZENE 0.69 U 0.08 0.69 UG/M3 0.69 U EPD-WA-01-061623 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.68 U 0.18 0.68 UG/M3 0.68 U EPD-WA-01-061623 TO-15 98-82-8 CUMENE 0.74 U 0.068 0.74 UG/M3 0.74 U EPD-WA-01-061623 TO-15 110-82-7 CYCLOHEXANE 2.6 U 0.44 2.6 UG/M3 2.6 U EPD-WA-01-061623 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.19 1.3 UG/M3 1.3 U EPD-WA-01-061623 TO-15 64-17-5 ETHANOL 2.1 J 0.72 18 UG/M3 2.1 J+ EPD-WA-01-061623 TO-15 75-69-4 FREON 11 1.3 0.13 0.84 UG/M3 1.3 EPD-WA-01-061623 TO-15 76-13-1 FREON 113 0.42 J 0.12 1.1 UG/M3 0.42 J EPD-WA-01-061623 TO-15 142-82-5 HEPTANE 3.1 U 0.43 3.1 UG/M3 3.1 U EPD-WA-01-061623 TO-15 87-68-3 HEXACHLOROBUTADIENE 8 U 0.52 8 UG/M3 8.0 U EPD-WA-01-061623 TO-15 110-54-3 HEXANE 0.31 J 0.24 2.6 UG/M3 0.31 J EPD-WA-01-061623 TO-15 75-09-2 METHYLENE CHLORIDE 0.45 J 0.32 1 UG/M3 0.45 J EPD-WA-01-061623 TO-15 103-65-1 PROPYLBENZENE 0.74 U 0.17 0.74 UG/M3 0.74 U EPD-WA-01-061623 TO-15 100-42-5 STYRENE 0.64 U 0.1 0.64 UG/M3 0.64 U EPD-WA-01-061623 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.37 2.2 UG/M3 2.2 U EPD-WA-01-061623 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.68 U 0.14 0.68 UG/M3 0.68 U EPD-WA-01-061624 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-01-061625 TO-15 78-78-4 BUTANE, 2-METHYL- 0.84 NJ PPBV 0.84 NJ EPD-WA-01-061626 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-WA-01-061627 TO-15 124-19-6 NONANAL 1.7 NJ PPBV 1.7 NJ EPD-WA-01-061623 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-01-061623 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.088 0.2 UG/M3 0.20 U EPD-WA-01-061623 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.056 0.16 UG/M3 0.16 U EPD-WA-01-061623 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.017 0.12 UG/M3 0.12 U Page 5 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-01-061623 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.023 0.059 UG/M3 0.059 U EPD-WA-01-061623 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.081 0.23 UG/M3 0.23 U EPD-WA-01-061623 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.069 J 0.031 0.12 UG/M3 0.069 J EPD-WA-01-061623 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.064 0.18 UG/M3 0.18 U EPD-WA-01-061623 TO-15 SIM 71-43-2 BENZENE 0.41 0.027 0.24 UG/M3 0.41 EPD-WA-01-061623 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.51 0.04 0.19 UG/M3 0.51 EPD-WA-01-061623 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.022 0.2 UG/M3 0.20 U EPD-WA-01-061623 TO-15 SIM 67-66-3 CHLOROFORM 0.075 J 0.022 0.15 UG/M3 0.075 J EPD-WA-01-061623 TO-15 SIM 74-87-3 CHLOROMETHANE 0.95 J 0.31 1.5 UG/M3 0.95 J EPD-WA-01-061623 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.011 0.12 UG/M3 0.12 U EPD-WA-01-061623 TO-15 SIM 100-41-4 ETHYL BENZENE 0.067 J 0.013 0.13 UG/M3 0.067 J EPD-WA-01-061623 TO-15 SIM 76-14-2 FREON 114 0.11 J 0.017 0.21 UG/M3 0.11 J EPD-WA-01-061623 TO-15 SIM 75-71-8 FREON 12 2.5 0.027 0.37 UG/M3 2.5 EPD-WA-01-061623 TO-15 SIM 179601-23-1 M,P-XYLENE 0.22 J 0.008 0.26 UG/M3 0.22 J EPD-WA-01-061623 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.54 U 0.015 0.54 UG/M3 0.54 U EPD-WA-01-061623 TO-15 SIM 91-20-3 NAPHTHALENE 0.39 U 0.11 0.39 UG/M3 0.39 U EPD-WA-01-061623 TO-15 SIM 95-47-6 O-XYLENE 0.086 J 0.011 0.13 UG/M3 0.086 J EPD-WA-01-061623 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.2 U 0.11 0.2 UG/M3 0.20 U EPD-WA-01-061623 TO-15 SIM 108-88-3 TOLUENE 0.58 0.015 0.28 UG/M3 0.58 EPD-WA-01-061623 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.59 U 0.014 0.59 UG/M3 0.59 U EPD-WA-01-061623 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-WA-01-061623 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.024 J 0.011 0.038 UG/M3 0.024 J EPD-WA-02-061623 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5 U 1.1 5 UG/M3 5.0 U EPD-WA-02-061623 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.66 U 0.16 0.66 UG/M3 0.66 U EPD-WA-02-061623 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.81 U 0.13 0.81 UG/M3 0.81 U EPD-WA-02-061623 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.62 U 0.13 0.62 UG/M3 0.62 U EPD-WA-02-061623 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.66 U 0.13 0.66 UG/M3 0.66 U EPD-WA-02-061623 TO-15 106-99-0 1,3-BUTADIENE 0.3 U 0.041 0.3 UG/M3 0.30 U EPD-WA-02-061623 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.81 U 0.081 0.81 UG/M3 0.81 U EPD-WA-02-061623 TO-15 123-91-1 1,4-DIOXANE 0.49 U 0.07 0.49 UG/M3 0.49 U EPD-WA-02-061623 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.2 U 0.2 3.2 UG/M3 3.2 U EPD-WA-02-061623 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.8 J 0.34 2 UG/M3 1.8 J EPD-WA-02-061623 TO-15 591-78-6 2-HEXANONE 2.8 U 0.52 2.8 UG/M3 2.8 U EPD-WA-02-061623 TO-15 67-63-0 2-PROPANOL 7.4 0.16 6.6 UG/M3 7.4 EPD-WA-02-061623 TO-15 107-05-1 3-CHLOROPROPENE 2.1 U 0.19 2.1 UG/M3 2.1 U Page 6 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_ _Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-02-061623 TO-15 622-96-8 4-ETHYLTOLUENE 0.66 U 0.11 0.66 UG/M3 0.66 U EPD-WA-02-061623 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.55 U 0.17 0.55 UG/M3 0.55 U EPD-WA-02-061623 TO-15 67-64-1 ACETONE 22 0.48 6.4 UG/M3 22 EPD-WA-02-061623 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.7 U 0.2 0.7 UG/M3 0.70 U EPD-WA-02-061623 TO-15 75-27-4 BROMODICHLOROMETHANE 0.9 U 0.11 0.9 UG/M3 0.90 U EPD-WA-02-061623 TO-15 75-25-2 BROMOFORM 1.4 U 0.13 1.4 UG/M3 1.4 U EPD-WA-02-061623 TO-15 74-83-9 BROMOMETHANE 26 U 1.2 26 UG/M3 26 U EPD-WA-02-061623 TO-15 75-15-0 CARBON DISULFIDE 2.1 U 0.093 2.1 UG/M3 2.1 U EPD-WA-02-061623 TO-15 108-90-7 CHLOROBENZENE 0.62 U 0.072 0.62 UG/M3 0.62 U EPD-WA-02-061623 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.61 U 0.16 0.61 UG/M3 0.61 U EPD-WA-02-061623 TO-15 98-82-8 CUMENE 0.66 U 0.061 0.66 UG/M3 0.66 U EPD-WA-02-061623 TO-15 110-82-7 CYCLOHEXANE 2.3 U 0.39 2.3 UG/M3 2.3 U EPD-WA-02-061623 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.17 1.2 UG/M3 1.2 U EPD-WA-02-061623 TO-15 64-17-5 ETHANOL 8.2 J 0.65 16 UG/M3 8.2 J+ EPD-WA-02-061623 TO-15 75-69-4 FREON 11 1.2 0.11 0.76 UG/M3 1.2 EPD-WA-02-061623 TO-15 76-13-1 FREON 113 0.54 J 0.1 1 UG/M3 0.54 J EPD-WA-02-061623 TO-15 142-82-5 HEPTANE 2.8 U 0.38 2.8 UG/M3 2.8 U EPD-WA-02-061623 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.2 U 0.47 7.2 UG/M3 7.2 U EPD-WA-02-061623 TO-15 110-54-3 HEXANE 0.26 J 0.22 2.4 UG/M3 0.26 J EPD-WA-02-061623 TO-15 75-09-2 METHYLENE CHLORIDE 0.69 J 0.29 0.94 UG/M3 0.69 J EPD-WA-02-061623 TO-15 103-65-1 PROPYLBENZENE 0.66 U 0.15 0.66 UG/M3 0.66 U EPD-WA-02-061623 TO-15 100-42-5 STYRENE 0.29 J 0.093 0.58 UG/M3 0.29 J EPD-WA-02-061623 TO-15 109-99-9 TETRAHYDROFURAN 2 U 0.34 2 UG/M3 2.0 U EPD-WA-02-061623 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.61 U 0.12 0.61 UG/M3 0.61 U EPD-WA-02-061624 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-02-061625 TO-15 78-78-4 BUTANE, 2-METHYL- 1 NJ PPBV 1.0 NJ EPD-WA-02-061626 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-WA-02-061627 TO-15 75-28-5 ISOBUTANE 17 NJ PPBV 17 NJ EPD-WA-02-061628 TO-15 109-66-0 PENTANE 1 NJ PPBV 1.0 NJ EPD-WA-02-061623 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.019 0.15 UG/M3 0.15 U EPD-WA-02-061623 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.18 U 0.079 0.18 UG/M3 0.18 U EPD-WA-02-061623 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.051 0.15 UG/M3 0.15 U EPD-WA-02-061623 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.015 0.11 UG/M3 0.11 U EPD-WA-02-061623 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.054 U 0.02 0.054 UG/M3 0.054 U EPD-WA-02-061623 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.21 U 0.073 0.21 UG/M3 0.21 U Page 7 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-02-061623 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.07 J 0.028 0.11 UG/M3 0.070 J EPD-WA-02-061623 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.16 U 0.057 0.16 UG/M3 0.16 U EPD-WA-02-061623 TO-15 SIM 71-43-2 BENZENE 0.45 0.024 0.22 UG/M3 0.45 EPD-WA-02-061623 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.52 0.036 0.17 UG/M3 0.52 EPD-WA-02-061623 TO-15 SIM 75-00-3 CHLOROETHANE 0.042 J 0.02 0.18 UG/M3 0.042 J EPD-WA-02-061623 TO-15 SIM 67-66-3 CHLOROFORM 0.08 J 0.019 0.13 UG/M3 0.080 J EPD-WA-02-061623 TO-15 SIM 74-87-3 CHLOROMETHANE 1 J 0.28 1.4 UG/M3 1.0 J EPD-WA-02-061623 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.01 0.11 UG/M3 0.11 U EPD-WA-02-061623 TO-15 SIM 100-41-4 ETHYL BENZENE 0.09 J 0.011 0.12 UG/M3 0.090 J EPD-WA-02-061623 TO-15 SIM 76-14-2 FREON 114 0.12 J 0.015 0.19 UG/M3 0.12 J EPD-WA-02-061623 TO-15 SIM 75-71-8 FREON 12 2.5 0.024 0.33 UG/M3 2.5 EPD-WA-02-061623 TO-15 SIM 179601-23-1 M,P-XYLENE 0.25 0.007 0.23 UG/M3 0.25 EPD-WA-02-061623 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.49 U 0.013 0.49 UG/M3 0.49 U EPD-WA-02-061623 TO-15 SIM 91-20-3 NAPHTHALENE 0.35 U 0.1 0.35 UG/M3 0.35 U EPD-WA-02-061623 TO-15 SIM 95-47-6 O-XYLENE 0.1 J 0.01 0.12 UG/M3 0.10 J EPD-WA-02-061623 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.18 U 0.1 0.18 UG/M3 0.18 U EPD-WA-02-061623 TO-15 SIM 108-88-3 TOLUENE 0.9 0.013 0.25 UG/M3 0.90 EPD-WA-02-061623 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.54 U 0.012 0.54 UG/M3 0.54 U EPD-WA-02-061623 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.14 U 0.02 0.14 UG/M3 0.14 U EPD-WA-02-061623 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.034 U 0.01 0.034 UG/M3 0.034 U EPD-WA-03-061623 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 1.3 5.4 UG/M3 5.4 U EPD-WA-03-061623 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.72 U 0.22 0.72 UG/M3 0.72 U EPD-WA-03-061623 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.88 U 0.1 0.88 UG/M3 0.88 U EPD-WA-03-061623 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.68 U 0.11 0.68 UG/M3 0.68 U EPD-WA-03-061623 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.72 U 0.14 0.72 UG/M3 0.72 U EPD-WA-03-061623 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.032 0.32 UG/M3 0.32 U EPD-WA-03-061623 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.88 U 0.1 0.88 UG/M3 0.88 U EPD-WA-03-061623 TO-15 123-91-1 1,4-DIOXANE 0.53 U 0.084 0.53 UG/M3 0.53 U EPD-WA-03-061623 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.4 U 0.55 3.4 UG/M3 3.4 U EPD-WA-03-061623 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 2.2 U 0.33 2.2 UG/M3 2.2 U EPD-WA-03-061623 TO-15 591-78-6 2-HEXANONE 3 U 0.47 3 UG/M3 3.0 U EPD-WA-03-061623 TO-15 67-63-0 2-PROPANOL 7.2 U 0.41 7.2 UG/M3 7.2 U EPD-WA-03-061623 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.46 2.3 UG/M3 2.3 U EPD-WA-03-061623 TO-15 622-96-8 4-ETHYLTOLUENE 0.72 U 0.14 0.72 UG/M3 0.72 U EPD-WA-03-061623 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.6 U 0.22 0.6 UG/M3 0.6 U Page 8 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_ _Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-03-061623 TO-15 67-64-1 ACETONE 6.3 J 0.8 7 UG/M3 6.3 J EPD-WA-03-061623 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.76 U 0.14 0.76 UG/M3 0.76 U EPD-WA-03-061623 TO-15 75-27-4 BROMODICHLOROMETHANE 0.98 U 0.15 0.98 UG/M3 0.98 U EPD-WA-03-061623 TO-15 75-25-2 BROMOFORM 1.5 U 0.42 1.5 UG/M3 1.5 U EPD-WA-03-061623 TO-15 74-83-9 BROMOMETHANE 28 U 0.82 28 UG/M3 28 U EPD-WA-03-061623 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.66 2.3 UG/M3 2.3 U EPD-WA-03-061623 TO-15 108-90-7 CHLOROBENZENE 0.68 U 0.053 0.68 UG/M3 0.68 U EPD-WA-03-061623 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.67 U 0.13 0.67 UG/M3 0.67 U EPD-WA-03-061623 TO-15 98-82-8 CUMENE 0.72 U 0.091 0.72 UG/M3 0.72 U EPD-WA-03-061623 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.24 2.5 UG/M3 2.5 U EPD-WA-03-061623 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.22 1.2 UG/M3 1.2 U EPD-WA-03-061623 TO-15 64-17-5 ETHANOL 17 U 0.67 17 UG/M3 17 U EPD-WA-03-061623 TO-15 75-69-4 FREON 11 0.95 0.065 0.82 UG/M3 0.95 EPD-WA-03-061623 TO-15 76-13-1 FREON 113 0.45 J 0.19 1.1 UG/M3 0.45 J EPD-WA-03-061623 TO-15 142-82-5 HEPTANE 3 U 0.37 3 UG/M3 3.0 U EPD-WA-03-061623 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.8 U 0.78 7.8 UG/M3 7.8 U EPD-WA-03-061623 TO-15 110-54-3 HEXANE 2.6 U 0.4 2.6 UG/M3 2.6 U EPD-WA-03-061623 TO-15 75-09-2 METHYLENE CHLORIDE 0.59 J 0.58 1 UG/M3 1.0 U EPD-WA-03-061623 TO-15 103-65-1 PROPYLBENZENE 0.72 U 0.16 0.72 UG/M3 0.72 U EPD-WA-03-061623 TO-15 100-42-5 STYRENE 0.12 J 0.091 0.63 UG/M3 0.12 J EPD-WA-03-061623 TO-15 109-99-9 TETRAHYDROFURAN 0.38 J 0.35 2.2 UG/M3 2.2 U EPD-WA-03-061623 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.67 U 0.16 0.67 UG/M3 0.67 U EPD-WA-03-061623 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-03-061623 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-WA-03-061623 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.014 0.16 UG/M3 0.16 U EPD-WA-03-061623 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.049 0.2 UG/M3 0.20 U EPD-WA-03-061623 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.018 0.16 UG/M3 0.16 U EPD-WA-03-061623 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 u 0.012 0.12 UG/M3 0.12 U EPD-WA-03-061623 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.058 u 0.015 0.058 UG/M3 0.058 U EPD-WA-03-061623 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 u 0.031 0.22 UG/M3 0.22 U EPD-WA-03-061623 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.047 J 0.014 0.12 UG/M3 0.047 J EPD-WA-03-061623 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 UJ 0.076 0.18 UG/M3 0.18 UJ EPD-WA-03-061623 TO-15 SIM 71-43-2 BENZENE 0.4 0.023 0.23 UG/M3 0.40 EPD-WA-03-061623 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.41 0.013 0.18 UG/M3 0.41 EPD-WA-03-061623 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 u 0.01 0.19 UG/M3 0.19 U Page 9 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-03-061623 TO-15 SIM 67-66-3 CHLOROFORM 0.073 J 0.015 0.14 UG/M3 0.073 J EPD-WA-03-061623 TO-15 SIM 74-87-3 CHLOROMETHANE 0.75 J 0.18 1.5 UG/M3 0.75 J EPD-WA-03-061623 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.015 0.12 UG/M3 0.12 U EPD-WA-03-061623 TO-15 SIM 100-41-4 ETHYL BENZENE 0.058 J 0.019 0.13 UG/M3 0.058 J EPD-WA-03-061623 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.022 0.2 UG/M3 0.10 J EPD-WA-03-061623 TO-15 SIM 75-71-8 FREON 12 2 0.015 0.36 UG/M3 2.0 EPD-WA-03-061623 TO-15 SIM 179601-23-1 M,P-XYLENE 0.22 J 0.025 0.26 UG/M3 0.22 J EPD-WA-03-061623 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.53 U 0.01 0.53 UG/M3 0.53 U EPD-WA-03-061623 TO-15 SIM 91-20-3 NAPHTHALENE 0.35 J 0.11 0.38 UG/M3 0.35 J EPD-WA-03-061623 TO-15 SIM 95-47-6 O-XYLENE 0.086 J 0.022 0.13 UG/M3 0.086 J EPD-WA-03-061623 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.031 J 0.028 0.2 UG/M3 0.031 J EPD-WA-03-061623 TO-15 SIM 108-88-3 TOLUENE 0.41 0.02 0.28 UG/M3 0.41 EPD-WA-03-061623 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.58 U 0.009 0.58 UG/M3 0.58 U EPD-WA-03-061623 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.026 0.16 UG/M3 0.16 U EPD-WA-03-061623 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.038 U 0.01 0.038 UG/M3 0.038 U EPD-WA-04-061623 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.6 U 1.2 5.6 UG/M3 5.6 U EPD-WA-04-061623 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.35 J 0.18 0.74 UG/M3 0.35 J EPD-WA-04-061623 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.9 U 0.14 0.9 UG/M3 0.90 U EPD-WA-04-061623 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.69 U 0.14 0.69 UG/M3 0.69 U EPD-WA-04-061623 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.74 U 0.15 0.74 UG/M3 0.74 U EPD-WA-04-061623 TO-15 106-99-0 1,3-BUTADIENE 0.33 U 0.046 0.33 UG/M3 0.33 U EPD-WA-04-061623 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.9 U 0.09 0.9 UG/M3 0.90 U EPD-WA-04-061623 TO-15 123-91-1 1,4-DIOXANE 0.13 J 0.078 0.54 UG/M3 0.13 J EPD-WA-04-061623 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.59 J 0.23 3.5 UG/M3 0.59 J EPD-WA-04-061623 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.66 J 0.38 2.2 UG/M3 0.66 J EPD-WA-04-061623 TO-15 591-78-6 2-HEXANONE 3.1 U 0.58 3.1 UG/M3 3.1 U EPD-WA-04-061623 TO-15 67-63-0 2-PROPANOL 7.4 U 0.18 7.4 UG/M3 7.4 U EPD-WA-04-061623 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.21 2.3 UG/M3 2.3 U EPD-WA-04-061623 TO-15 622-96-8 4-ETHYLTOLUENE 0.3 J 0.12 0.74 UG/M3 0.30 J EPD-WA-04-061623 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.61 U 0.19 0.61 UG/M3 0.61 U EPD-WA-04-061623 TO-15 67-64-1 ACETONE 7.4 0.53 7.1 UG/M3 7.4 EPD-WA-04-061623 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.78 U 0.22 0.78 UG/M3 0.78 U EPD-WA-04-061623 TO-15 75-27-4 BROMODICHLOROMETHANE 1 U 0.13 1 UG/M3 1.0 U EPD-WA-04-061623 TO-15 75-25-2 BROMOFORM 1.6 U 0.15 1.6 UG/M3 1.6 U EPD-WA-04-061623 TO-15 74-83-9 BROMOMETHANE 29 U 1.4 29 UG/M3 29 U Page 10 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_ _Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-061623 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.1 2.3 UG/M3 2.3 U EPD-WA-04-061623 TO-15 108-90-7 CHLOROBENZENE 0.69 U 0.08 0.69 UG/M3 0.69 U EPD-WA-04-061623 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.68 U 0.18 0.68 UG/M3 0.68 U EPD-WA-04-061623 TO-15 98-82-8 CUMENE 0.74 U 0.068 0.74 UG/M3 0.74 U EPD-WA-04-061623 TO-15 110-82-7 CYCLOHEXANE 2.6 U 0.44 2.6 UG/M3 2.6 U EPD-WA-04-061623 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.19 1.3 UG/M3 1.3 U EPD-WA-04-061623 TO-15 64-17-5 ETHANOL 2.4 J 0.72 18 UG/M3 2.4 J+ EPD-WA-04-061623 TO-15 75-69-4 FREON 11 1.2 0.13 0.84 UG/M3 1.2 EPD-WA-04-061623 TO-15 76-13-1 FREON 113 0.48 J 0.12 1.1 UG/M3 0.48 J EPD-WA-04-061623 TO-15 142-82-5 HEPTANE 3.1 U 0.43 3.1 UG/M3 3.1 U EPD-WA-04-061623 TO-15 87-68-3 HEXACHLOROBUTADIENE 8 U 0.52 8 UG/M3 8.0 U EPD-WA-04-061623 TO-15 110-54-3 HEXANE 0.61 J 0.24 2.6 UG/M3 0.61 J EPD-WA-04-061623 TO-15 75-09-2 METHYLENE CHLORIDE 0.55 J 0.32 1 UG/M3 0.55 J EPD-WA-04-061623 TO-15 103-65-1 PROPYLBENZENE 0.74 U 0.17 0.74 UG/M3 0.74 U EPD-WA-04-061623 TO-15 100-42-5 STYRENE 0.64 U 0.1 0.64 UG/M3 0.64 U EPD-WA-04-061623 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.37 2.2 UG/M3 2.2 U EPD-WA-04-061623 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.68 U 0.14 0.68 UG/M3 0.68 U EPD-WA-04-061623 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-04-061623 TO-15 78-78-4 BUTANE, 2-METHYL- 1 NJ PPBV 1.0 NJ EPD-WA-04-061623 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-WA-04-061623 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-04-061623 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.088 0.2 UG/M3 0.20 U EPD-WA-04-061623 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.056 0.16 UG/M3 0.16 U EPD-WA-04-061623 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.017 0.12 UG/M3 0.12 U EPD-WA-04-061623 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.023 0.059 UG/M3 0.059 U EPD-WA-04-061623 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.081 0.23 UG/M3 0.23 U EPD-WA-04-061623 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.068 J 0.031 0.12 UG/M3 0.068 J EPD-WA-04-061623 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.064 0.18 UG/M3 0.18 U EPD-WA-04-061623 TO-15 SIM 71-43-2 BENZENE 0.87 0.027 0.24 UG/M3 0.87 EPD-WA-04-061623 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.51 0.04 0.19 UG/M3 0.51 EPD-WA-04-061623 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.022 0.2 UG/M3 0.20 U EPD-WA-04-061623 TO-15 SIM 67-66-3 CHLOROFORM 0.078 J 0.022 0.15 UG/M3 0.078 J EPD-WA-04-061623 TO-15 SIM 74-87-3 CHLOROMETHANE 0.95 J 0.31 1.5 UG/M3 0.95 J EPD-WA-04-061623 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.011 0.12 UG/M3 0.12 U EPD-WA-04-061623 TO-15 SIM 100-41-4 ETHYL BENZENE 0.18 0.013 0.13 UG/M3 0.18 Page 11 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-061623 TO-15 SIM 76-14-2 FREON 114 0.12 J 0.017 0.21 UG/M3 0.12 J EPD-WA-04-061623 TO-15 SIM 75-71-8 FREON 12 2.5 0.027 0.37 UG/M3 2.5 EPD-WA-04-061623 TO-15 SIM 179601-23-1 M,P-XYLENE 0.65 0.008 0.26 UG/M3 0.65 EPD-WA-04-061623 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.54 U 0.015 0.54 UG/M3 0.54 U EPD-WA-04-061623 TO-15 SIM 91-20-3 NAPHTHALENE 0.39 U 0.11 0.39 UG/M3 0.39 U EPD-WA-04-061623 TO-15 SIM 95-47-6 O-XYLENE 0.26 0.011 0.13 UG/M3 0.26 EPD-WA-04-061623 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.2 U 0.11 0.2 UG/M3 0.20 U EPD-WA-04-061623 TO-15 SIM 108-88-3 TOLUENE 1.1 0.015 0.28 UG/M3 1.1 EPD-WA-04-061623 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.59 U 0.014 0.59 UG/M3 0.59 U EPD-WA-04-061623 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-WA-04-061623 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.038 U 0.011 0.038 UG/M3 0.038 U EPD-WA-05-061623 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.5 U 1.2 5.5 UG/M3 5.5 U EPD-WA-05-061623 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.73 U 0.18 0.73 UG/M3 0.73 U EPD-WA-05-061623 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.9 U 0.14 0.9 UG/M3 0.90 U EPD-WA-05-061623 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.69 U 0.14 0.69 UG/M3 0.69 U EPD-WA-05-061623 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.73 U 0.15 0.73 UG/M3 0.73 U EPD-WA-05-061623 TO-15 106-99-0 1,3-BUTADIENE 0.33 U 0.045 0.33 UG/M3 0.33 U EPD-WA-05-061623 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.9 U 0.089 0.9 UG/M3 0.9 U EPD-WA-05-061623 TO-15 123-91-1 1,4-DIOXANE 0.54 U 0.078 0.54 UG/M3 0.54 U EPD-WA-05-061623 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.5 U 0.23 3.5 UG/M3 3.5 U EPD-WA-05-061623 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 3.8 0.38 2.2 UG/M3 3.8 EPD-WA-05-061623 TO-15 591-78-6 2-HEXANONE 3 U 0.58 3 UG/M3 3.0 U EPD-WA-05-061623 TO-15 67-63-0 2-PROPANOL 7.3 U 0.18 7.3 UG/M3 7.3 U EPD-WA-05-061623 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.21 2.3 UG/M3 2.3 U EPD-WA-05-061623 TO-15 622-96-8 4-ETHYLTOLUENE 0.73 U 0.12 0.73 UG/M3 0.73 U EPD-WA-05-061623 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.32 J 0.19 0.61 UG/M3 0.32 J EPD-WA-05-061623 TO-15 67-64-1 ACETONE 26 0.53 7.1 UG/M3 26 J EPD-WA-05-061623 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.77 U 0.22 0.77 UG/M3 0.77 U EPD-WA-05-061623 TO-15 75-27-4 BROMODICHLOROMETHANE 1 U 0.12 1 UG/M3 1.0 U EPD-WA-05-061623 TO-15 75-25-2 BROMOFORM 1.5 U 0.15 1.5 UG/M3 1.5 U EPD-WA-05-061623 TO-15 74-83-9 BROMOMETHANE 29 U 1.4 29 UG/M3 29 U EPD-WA-05-061623 TO-15 75-15-0 CARBON DISULFIDE 0.32 J 0.1 2.3 UG/M3 0.32 J EPD-WA-05-061623 TO-15 108-90-7 CHLOROBENZENE 0.68 U 0.079 0.68 UG/M3 0.68 U EPD-WA-05-061623 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.68 u 0.18 0.68 UG/M3 0.68 U EPD-WA-05-061623 TO-15 98-82-8 CUMENE 0.73 u 0.068 0.73 UG/M3 0.73 U Page 12 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_ _Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-05-061623 TO-15 110-82-7 CYCLOHEXANE 2.6 U 0.43 2.6 UG/M3 2.6 U EPD-WA-05-061623 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.19 1.3 UG/M3 1.3 U EPD-WA-05-061623 TO-15 64-17-5 ETHANOL 4 J 0.71 17 UG/M3 4.0 J+ EPD-WA-05-061623 TO-15 75-69-4 FREON 11 1.1 0.12 0.84 UG/M3 1.1 EPD-WA-05-061623 TO-15 76-13-1 FREON 113 0.5 J 0.12 1.1 UG/M3 0.50 J EPD-WA-05-061623 TO-15 142-82-5 HEPTANE 3 U 0.42 3 UG/M3 3.0 U EPD-WA-05-061623 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.9 U 0.52 7.9 UG/M3 7.9 U EPD-WA-05-061623 TO-15 110-54-3 HEXANE 0.38 J 0.24 2.6 UG/M3 0.38 J EPD-WA-05-061623 TO-15 75-09-2 METHYLENE CHLORIDE 0.46 J 0.32 1 UG/M3 0.46 J EPD-WA-05-061623 TO-15 103-65-1 PROPYLBENZENE 0.73 U 0.17 0.73 UG/M3 0.73 U EPD-WA-05-061623 TO-15 100-42-5 STYRENE 0.63 U 0.1 0.63 UG/M3 0.63 U EPD-WA-05-061623 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.37 2.2 UG/M3 2.2 U EPD-WA-05-061623 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.68 U 0.14 0.68 UG/M3 0.68 U EPD-WA-05-061623 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-05-061623 TO-15 123-72-8 BUTANAL 1.5 NJ PPBV 1.5 NJ EPD-WA-05-061623 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-WA-05-061623 TO-15 556-67-2 CYCLOTETRASILOXANE, OCTAMETHYL- 0.86 NJ PPBV 0.86 NJ EPD-WA-05-061623 TO-15 62016-14-2 OCTANE, 2,5,6-TRI METHYL- 1.7 NJ PPBV 1.7 NJ EPD-WA-05-061623 TO-15 NA UNKNOWN TIC 2.1 J PPBV 2.1 J EPD-WA-05-061623 TO-15 NA UNKNOWN TIC 1.1 J PPBV 1.1 J EPD-WA-05-061623 TO-15 NA UNKNOWN TIC 0.86 J PPBV 0.86 J EPD-WA-05-061623 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-05-061623 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.087 0.2 UG/M3 0.20 U EPD-WA-05-061623 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.056 0.16 UG/M3 0.16 U EPD-WA-05-061623 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.017 0.12 UG/M3 0.12 U EPD-WA-05-061623 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.023 0.059 UG/M3 0.059 U EPD-WA-05-061623 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.081 0.23 UG/M3 0.23 U EPD-WA-05-061623 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.073 J 0.031 0.12 UG/M3 0.073 J EPD-WA-05-061623 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.063 0.18 UG/M3 0.18 U EPD-WA-05-061623 TO-15 SIM 71-43-2 BENZENE 0.42 0.027 0.24 UG/M3 0.42 EPD-WA-05-061623 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.5 0.04 0.19 UG/M3 0.50 EPD-WA-05-061623 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.022 0.2 UG/M3 0.20 U EPD-WA-05-061623 TO-15 SIM 67-66-3 CHLOROFORM 0.082 J 0.021 0.14 UG/M3 0.082 J EPD-WA-05-061623 TO-15 SIM 74-87-3 CHLOROMETHANE 0.96 J 0.31 1.5 UG/M3 0.96 J EPD-WA-05-061623 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.011 0.12 UG/M3 0.12 U Page 13 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-05-061623 TO-15 SIM 100-41-4 ETHYL BENZENE 0.072 J 0.012 0.13 UG/M3 0.072 J EPD-WA-05-061623 TO-15 SIM 76-14-2 FREON 114 0.11 J 0.017 0.21 UG/M3 0.11 J EPD-WA-05-061623 TO-15 SIM 75-71-8 FREON 12 2.5 0.027 0.37 UG/M3 2.5 EPD-WA-05-061623 TO-15 SIM 179601-23-1 M,P-XYLENE 0.22 J 0.008 0.26 UG/M3 0.22 J EPD-WA-05-061623 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.54 U 0.015 0.54 UG/M3 0.54 U EPD-WA-05-061623 TO-15 SIM 91-20-3 NAPHTHALENE 0.14 J 0.11 0.39 UG/M3 0.14 J EPD-WA-05-061623 TO-15 SIM 95-47-6 O-XYLENE 0.086 J 0.011 0.13 UG/M3 0.086 J EPD-WA-05-061623 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.2 U 0.11 0.2 UG/M3 0.20 U EPD-WA-05-061623 TO-15 SIM 108-88-3 TOLUENE 0.69 0.014 0.28 UG/M3 0.69 EPD-WA-05-061623 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.59 U 0.014 0.59 UG/M3 0.59 U EPD-WA-05-061623 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.028 J 0.022 0.16 UG/M3 0.028 J EPD-WA-05-061623 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.038 U 0.011 0.038 UG/M3 0.038 U EPD-WA-06-061623 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.6 U 1.2 5.6 UG/M3 5.6 U EPD-WA-06-061623 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.75 U 0.18 0.75 UG/M3 0.75 U EPD-WA-06-061623 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.91 U 0.14 0.91 UG/M3 0.91 U EPD-WA-06-061623 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.7 U 0.14 0.7 UG/M3 0.70 U EPD-WA-06-061623 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.75 U 0.15 0.75 UG/M3 0.75 U EPD-WA-06-061623 TO-15 106-99-0 1,3-BUTADIENE 0.34 U 0.046 0.34 UG/M3 0.34 U EPD-WA-06-061623 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.91 U 0.091 0.91 UG/M3 0.91 U EPD-WA-06-061623 TO-15 123-91-1 1,4-DIOXANE 0.55 U 0.079 0.55 UG/M3 0.55 U EPD-WA-06-061623 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.6 U 0.23 3.6 UG/M3 3.6 U EPD-WA-06-061623 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.56 J 0.38 2.2 UG/M3 0.56 J EPD-WA-06-061623 TO-15 591-78-6 2-HEXANONE 3.1 U 0.59 3.1 UG/M3 3.1 U EPD-WA-06-061623 TO-15 67-63-0 2-PROPANOL 7.5 U 0.18 7.5 UG/M3 7.5 U EPD-WA-06-061623 TO-15 107-05-1 3-CHLOROPROPENE 2.4 U 0.21 2.4 UG/M3 2.4 U EPD-WA-06-061623 TO-15 622-96-8 4-ETHYLTOLUENE 0.75 U 0.13 0.75 UG/M3 0.75 U EPD-WA-06-061623 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.62 U 0.19 0.62 UG/M3 0.62 U EPD-WA-06-061623 TO-15 67-64-1 ACETONE 8.1 0.54 7.2 UG/M3 8.1 EPD-WA-06-061623 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.79 U 0.23 0.79 UG/M3 0.79 U EPD-WA-06-061623 TO-15 75-27-4 BROMODICHLOROMETHANE 1 U 0.13 1 UG/M3 1.0 U EPD-WA-06-061623 TO-15 75-25-2 BROMOFORM 1.6 U 0.15 1.6 UG/M3 1.6 U EPD-WA-06-061623 TO-15 74-83-9 BROMOMETHANE 30 U 1.4 30 UG/M3 30 U EPD-WA-06-061623 TO-15 75-15-0 CARBON DISULFIDE 2.4 U 0.1 2.4 UG/M3 2.4 U EPD-WA-06-061623 TO-15 108-90-7 CHLOROBENZENE 0.7 U 0.081 0.7 UG/M3 0.7 U EPD-WA-06-061623 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.69 U 0.18 0.69 UG/M3 0.69 U Page 14 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_ _Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-06-061623 TO-15 98-82-8 CUMENE 0.75 U 0.069 0.75 UG/M3 0.75 U EPD-WA-06-061623 TO-15 110-82-7 CYCLOHEXANE 2.6 U 0.44 2.6 UG/M3 2.6 U EPD-WA-06-061623 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.19 1.3 UG/M3 1.3 U EPD-WA-06-061623 TO-15 64-17-5 ETHANOL 3.5 J 0.73 18 UG/M3 3.5 J+ EPD-WA-06-061623 TO-15 75-69-4 FREON 11 1.2 0.13 0.85 UG/M3 1.2 EPD-WA-06-061623 TO-15 76-13-1 FREON 113 0.5 J 0.12 1.2 UG/M3 0.50 J EPD-WA-06-061623 TO-15 142-82-5 HEPTANE 3.1 U 0.43 3.1 UG/M3 3.1 U EPD-WA-06-061623 TO-15 87-68-3 HEXACHLOROBUTADIENE 8.1 U 0.53 8.1 UG/M3 8.1 U EPD-WA-06-061623 TO-15 110-54-3 HEXANE 0.26 J 0.24 2.7 UG/M3 0.26 J EPD-WA-06-061623 TO-15 75-09-2 METHYLENE CHLORIDE 0.46 J 0.33 1 UG/M3 0.46 J EPD-WA-06-061623 TO-15 103-65-1 PROPYLBENZENE 0.75 U 0.17 0.75 UG/M3 0.75 U EPD-WA-06-061623 TO-15 100-42-5 STYRENE 0.65 U 0.1 0.65 UG/M3 0.65 U EPD-WA-06-061623 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.38 2.2 UG/M3 2.2 U EPD-WA-06-061623 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.69 U 0.14 0.69 UG/M3 0.69 U EPD-WA-06-061623 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-06-061623 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-WA-06-061623 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-WA-06-061623 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.21 U 0.089 0.21 UG/M3 0.21 U EPD-WA-06-061623 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.057 0.16 UG/M3 0.16 U EPD-WA-06-061623 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.017 0.12 UG/M3 0.12 U EPD-WA-06-061623 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.06 U 0.023 0.06 UG/M3 0.06 U EPD-WA-06-061623 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.082 0.23 UG/M3 0.23 U EPD-WA-06-061623 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.068 J 0.031 0.12 UG/M3 0.068 J EPD-WA-06-061623 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.065 0.18 UG/M3 0.18 U EPD-WA-06-061623 TO-15 SIM 71-43-2 BENZENE 0.56 0.027 0.24 UG/M3 0.56 EPD-WA-06-061623 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.49 0.041 0.19 UG/M3 0.49 EPD-WA-06-061623 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.022 0.2 UG/M3 0.20 U EPD-WA-06-061623 TO-15 SIM 67-66-3 CHLOROFORM 0.072 J 0.022 0.15 UG/M3 0.072 J EPD-WA-06-061623 TO-15 SIM 74-87-3 CHLOROMETHANE 0.9 J 0.32 1.6 UG/M3 0.90 J EPD-WA-06-061623 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.011 0.12 UG/M3 0.12 U EPD-WA-06-061623 TO-15 SIM 100-41-4 ETHYL BENZENE 0.075 J 0.013 0.13 UG/M3 0.075 J EPD-WA-06-061623 TO-15 SIM 76-14-2 FREON 114 0.11 J 0.017 0.21 UG/M3 0.11 J EPD-WA-06-061623 TO-15 SIM 75-71-8 FREON 12 2.4 0.028 0.38 UG/M3 2.4 EPD-WA-06-061623 TO-15 SIM 179601-23-1 M,P-XYLENE 0.24 J 0.008 0.26 UG/M3 0.24 J EPD-WA-06-061623 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.55 U 0.015 0.55 UG/M3 0.55 U Page 15 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-06-061623 TO-15 SIM 91-20-3 NAPHTHALENE 0.2 J 0.12 0.4 UG/M3 0.20 J EPD-WA-06-061623 TO-15 SIM 95-47-6 O-XYLENE 0.094 J 0.011 0.13 UG/M3 0.094 J EPD-WA-06-061623 TO-15 SIM 127-18-4 TETRACHLOROETHENE 3 0.11 0.21 UG/M3 3.0 EPD-WA-06-061623 TO-15 SIM 108-88-3 TOLUENE 0.53 0.015 0.29 UG/M3 0.53 EPD-WA-06-061623 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.6 U 0.014 0.6 UG/M3 0.60 U EPD-WA-06-061623 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-WA-06-061623 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.039 U 0.011 0.039 UG/M3 0.039 U EPD-WA-55-061623 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 7.6 U 1.9 7.6 UG/M3 7.6 U EPD-WA-55-061623 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 1 U 0.3 1 UG/M3 1.0 U EPD-WA-55-061623 TO-15 95-50-1 1,2-DICHLOROBENZENE 1.2 U 0.15 1.2 UG/M3 1.2 U EPD-WA-55-061623 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.95 U 0.16 0.95 UG/M3 0.95 U EPD-WA-55-061623 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 1 U 0.2 1 UG/M3 1.0 U EPD-WA-55-061623 TO-15 106-99-0 1,3-BUTADIENE 0.45 U 0.044 0.45 UG/M3 0.45 U EPD-WA-55-061623 TO-15 541-73-1 1,3-DICHLOROBENZENE 1.2 U 0.14 1.2 UG/M3 1.2 U EPD-WA-55-061623 TO-15 123-91-1 1,4-DIOXANE 0.74 U 0.12 0.74 UG/M3 0.74 U EPD-WA-55-061623 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 4.8 U 0.77 4.8 UG/M3 4.8 U EPD-WA-55-061623 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 3 U 0.46 3 UG/M3 3.0 U EPD-WA-55-061623 TO-15 591-78-6 2-HEXANONE 4.2 U 0.65 4.2 UG/M3 4.2 U EPD-WA-55-061623 TO-15 67-63-0 2-PROPANOL 10 U 0.57 10 UG/M3 10 U EPD-WA-55-061623 TO-15 107-05-1 3-CHLOROPROPENE 3.2 U 0.64 3.2 UG/M3 3.2 U EPD-WA-55-061623 TO-15 622-96-8 4-ETHYLTOLUENE 1 U 0.19 1 UG/M3 1.0 U EPD-WA-55-061623 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.84 U 0.3 0.84 UG/M3 0.84 U EPD-WA-55-061623 TO-15 67-64-1 ACETONE 6.6 J 1.1 9.7 UG/M3 6.6 J EPD-WA-55-061623 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 1.1 U 0.2 1.1 UG/M3 1.1 U EPD-WA-55-061623 TO-15 75-27-4 BROMODICHLOROMETHANE 1.4 U 0.21 1.4 UG/M3 1.4 U EPD-WA-55-061623 TO-15 75-25-2 BROMOFORM 2.1 U 0.59 2.1 UG/M3 2.1 U EPD-WA-55-061623 TO-15 74-83-9 BROMOMETHANE 40 U 1.1 40 UG/M3 40 U EPD-WA-55-061623 TO-15 75-15-0 CARBON DISULFIDE 3.2 U 0.91 3.2 UG/M3 3.2 U EPD-WA-55-061623 TO-15 108-90-7 CHLOROBENZENE 0.94 U 0.074 0.94 UG/M3 0.94 U EPD-WA-55-061623 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.93 U 0.18 0.93 UG/M3 0.93 U EPD-WA-55-061623 TO-15 98-82-8 CUMENE 1 U 0.13 1 UG/M3 1.0 U EPD-WA-55-061623 TO-15 110-82-7 CYCLOHEXANE 3.5 U 0.34 3.5 UG/M3 3.5 U EPD-WA-55-061623 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.7 U 0.31 1.7 UG/M3 1.7 U EPD-WA-55-061623 TO-15 64-17-5 ETHANOL 24 U 0.94 24 UG/M3 24 U EPD-WA-55-061623 TO-15 75-69-4 FREON 11 0.92 J 0.091 1.2 UG/M3 0.92 J Page 16 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_ _Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-55-061623 TO-15 76-13-1 FREON 113 0.5 J 0.27 1.6 UG/M3 0.50 J EPD-WA-55-061623 TO-15 142-82-5 HEPTANE 4.2 U 0.51 4.2 UG/M3 4.2 U EPD-WA-55-061623 TO-15 87-68-3 HEXACHLOROBUTADIENE 11 U 1.1 11 UG/M3 11 U EPD-WA-55-061623 TO-15 110-54-3 HEXANE 3.6 U 0.56 3.6 UG/M3 3.6 U EPD-WA-55-061623 TO-15 75-09-2 METHYLENE CHLORIDE 1.4 U 0.81 1.4 UG/M3 1.4 U EPD-WA-55-061623 TO-15 103-65-1 PROPYLBENZENE 1 U 0.22 1 UG/M3 1.0 U EPD-WA-55-061623 TO-15 100-42-5 STYRENE 0.87 U 0.13 0.87 UG/M3 0.87 U EPD-WA-55-061623 TO-15 109-99-9 TETRAHYDROFURAN 3 U 0.49 3 UG/M3 3.0 U EPD-WA-55-061623 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.93 U 0.23 0.93 UG/M3 0.93 U EPD-WA-55-061623 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-55-061623 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-WA-55-061623 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.22 U 0.019 0.22 UG/M3 0.22 U EPD-WA-55-061623 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.28 U 0.068 0.28 UG/M3 0.28 U EPD-WA-55-061623 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.22 U 0.026 0.22 UG/M3 0.22 U EPD-WA-55-061623 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.16 U 0.016 0.16 UG/M3 0.16 U EPD-WA-55-061623 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.081 U 0.021 0.081 UG/M3 0.081 U EPD-WA-55-061623 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.32 U 0.043 0.32 UG/M3 0.32 U EPD-WA-55-061623 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.05 J 0.019 0.16 UG/M3 0.050 J EPD-WA-55-061623 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.25 UJ 0.1 0.25 UG/M3 0.25 UJ EPD-WA-55-061623 TO-15 SIM 71-43-2 BENZENE 0.37 0.032 0.33 UG/M3 0.37 EPD-WA-55-061623 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.4 0.018 0.26 UG/M3 0.40 EPD-WA-55-061623 TO-15 SIM 75-00-3 CHLOROETHANE 0.27 U 0.014 0.27 UG/M3 0.27 U EPD-WA-55-061623 TO-15 SIM 67-66-3 CHLOROFORM 0.078 J 0.021 0.2 UG/M3 0.078 J EPD-WA-55-061623 TO-15 SIM 74-87-3 CHLOROMETHANE 0.74 J 0.26 2.1 UG/M3 0.74 J EPD-WA-55-061623 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-55-061623 TO-15 SIM 100-41-4 ETHYL BENZENE 0.068 J 0.026 0.18 UG/M3 0.068 J EPD-WA-55-061623 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.031 0.29 UG/M3 0.10 J EPD-WA-55-061623 TO-15 SIM 75-71-8 FREON 12 2 0.02 0.51 UG/M3 2.0 EPD-WA-55-061623 TO-15 SIM 179601-23-1 M,P-XYLENE 0.26 J 0.035 0.36 UG/M3 0.26 J EPD-WA-55-061623 TO-15 SIM 1634-04-4 METHYLTERT-BUTYL ETHER 0.74 U 0.014 0.74 UG/M3 0.74 U EPD-WA-55-061623 TO-15 SIM 91-20-3 NAPHTHALENE 0.54 U 0.16 0.54 UG/M3 0.54 U EPD-WA-55-061623 TO-15 SIM 95-47-6 O-XYLENE 0.1 J 0.03 0.18 UG/M3 0.10 J EPD-WA-55-061623 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.28 U 0.04 0.28 UG/M3 0.28 U EPD-WA-55-061623 TO-15 SIM 108-88-3 TOLUENE 0.58 0.027 0.39 UG/M3 0.58 EPD-WA-55-061623 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.81 u 0.012 0.81 UG/M3 0.81 U Page 17 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306351 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-55-061623 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.22 U 0.036 0.22 UG/M3 0.22 U EPD-WA-55-061623 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.052 U 0.015 0.052 UG/M3 0.052 U Page 18 of 18 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Site Name E Palestine Site - ER TO/TOLIN No. 68HE0520F0032/000IEB201 Document Tracking No. 1993c Laboratory Report No. 2306430 Laboratory Eurofins Air Toxics, LLC, Folsom CA Analyses Volatile organic compounds (VOCs) by EPA method TO-15 in scan anc selected ion monitoring (SIM) modes Samples and Matrix Nine air samples, including one field duplicate Collection Date(s) 6/17/2023 Field Duplicate Pairs EPD-WA-22-061723/EPD-WA-02-061723 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 East Palestine Train Derailment Site East Palestine, Columbiana County, Ohio, Revision 3 (April 2023), 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 sample/laboratory control sample duplicate relative percent differences (RPD) were not provided in the Level II laboratory report. The lab provided the RPDs separately. No qualifications were applied. 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/pressure values in the laboratory report were recorded as positive values. The laboratory was contacted and confirmed that all values are negative, even though the minus signs are missing, and that the laboratory uses 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. The laboratory-measured residual vacuum for EPD-WA-03-061723 listed on the laboratory summary was -10.5"Hg. This residual vacuum value suggests that the canister filled more slowly than intended over the allotted time and therefore the sample volume is lower than planned. The lower volume may have affected the analytical sensitivity (possibly leading to elevated method detection limit (MDL) and reporting limit (RL) values). The sample may not be representative of the full collection period, therefore analytical results for EPD-WA-03-061723 should be used with caution. Method blanks: Within Criteria Exceedance/Notes N TO-15 SIM (2306430-10B): 1,4 Dichlorobenzene was detected in the method blank at a level between the method detection limit (MDL) and reporting limit (RL). Associated sample results are nondetect, therefore no qualification was necessary. 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 Y LCSs/LCSDs: Within Criteria Exceedance/Notes N TO-15 scan (2306430-12A/2306430-12AA): The percent recoveries of ethanol were above the QC control limits in both the LCS and LCSD. Ethanol results in all samples were qualified as estimate with possible high bias (flagged J+). Sample dilutions: Within Criteria Exceedance/Notes Y Canister dilution factor for: • EPD-DW-B-061723 was 1.42 • EPD-WA-04-061723 was 1.45 • EPD-UW-F-061723 was 1.48 • EPD-WA-05-061723 was 1.45 • EPD-WA-01-061723 was 1.48 • EPD-WA-06-061723 was 1.45 • EPD-WA-02-061723 was 1.70 • EPD-WA-22-061723 was 1.55 • EPD-WA-03-061723 was 1.75 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 Per the case narrative, "The reporting limit for Ethanol was raised from 2.0 ppbv to 6.2 ppbv due to anomalous linearity in the Initial Calibration." 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 most samples. The known TICs were qualified as tentatively identified (flagged NJ). The unknown TICs were qualified as estimated (flagged J). 2-Ethyl-l-hexanol and butyl acrylate in all samples were reported as nondetect 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 following 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 quality control criteria. TETRA TECH Page 5 of 5 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-DW-B-061723 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.3 U 1.2 5.3 UG/M3 5.3 U EPD-DW-B-061723 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.7 U 0.17 0.7 UG/M3 0.7 U EPD-DW-B-061723 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.85 U 0.13 0.85 UG/M3 0.85 U EPD-DW-B-061723 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.66 U 0.13 0.66 UG/M3 0.66 U EPD-DW-B-061723 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.7 U 0.14 0.7 UG/M3 0.70 U EPD-DW-B-061723 TO-15 106-99-0 1,3-BUTADIENE 0.31 U 0.043 0.31 UG/M3 0.31 U EPD-DW-B-061723 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.85 U 0.085 0.85 UG/M3 0.85 U EPD-DW-B-061723 TO-15 123-91-1 1,4-DIOXANE 0.51 U 0.074 0.51 UG/M3 0.51 U EPD-DW-B-061723 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.3 U 0.22 3.3 UG/M3 3.3 U EPD-DW-B-061723 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.4 J 0.36 2.1 UG/M3 1.4 J EPD-DW-B-061723 TO-15 591-78-6 2-HEXANONE 2.9 U 0.55 2.9 UG/M3 2.9 U EPD-DW-B-061723 TO-15 67-63-0 2-PROPANOL 7 U 0.17 7 UG/M3 7.0 U EPD-DW-B-061723 TO-15 107-05-1 3-CHLOROPROPENE 2.2 U 0.2 2.2 UG/M3 2.2 U EPD-DW-B-061723 TO-15 622-96-8 4-ETHYLTOLUENE 0.7 U 0.12 0.7 UG/M3 0.70 U EPD-DW-B-061723 TO-15 108-10-1 4-M ETH YL-2-PENTANON E 0.58 U 0.18 0.58 UG/M3 0.58 U EPD-DW-B-061723 TO-15 67-64-1 ACETONE 11 0.5 6.7 UG/M3 11 EPD-DW-B-061723 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.74 U 0.21 0.74 UG/M3 0.74 U EPD-DW-B-061723 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.95 U 0.12 0.95 UG/M3 0.95 U EPD-DW-B-061723 TO-15 75-25-2 BROMOFORM 1.5 U 0.14 1.5 UG/M3 1.5 U EPD-DW-B-061723 TO-15 74-83-9 BROMOMETHANE 28 U 1.3 28 UG/M3 28 U EPD-DW-B-061723 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.098 2.2 UG/M3 2.2 U EPD-DW-B-061723 TO-15 108-90-7 CHLOROBENZENE 0.65 U 0.075 0.65 UG/M3 0.65 U EPD-DW-B-061723 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.64 U 0.17 0.64 UG/M3 0.64 U EPD-DW-B-061723 TO-15 98-82-8 CUMENE 0.7 U 0.064 0.7 UG/M3 0.70 U EPD-DW-B-061723 TO-15 110-82-7 CYCLOHEXANE 2.4 U 0.41 2.4 UG/M3 2.4 U EPD-DW-B-061723 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 u 0.18 1.2 UG/M3 1.2 U EPD-DW-B-061723 TO-15 64-17-5 ETHANOL 1.7 J 0.68 16 UG/M3 1.7 J+ EPD-DW-B-061723 TO-15 75-69-4 FREON 11 1.2 0.12 0.8 UG/M3 1.2 EPD-DW-B-061723 TO-15 76-13-1 FREON 113 0.42 J 0.11 1.1 UG/M3 0.42 J EPD-DW-B-061723 TO-15 142-82-5 HEPTANE 2.9 u 0.4 2.9 UG/M3 2.9 u EPD-DW-B-061723 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.6 u 0.5 7.6 UG/M3 7.6 u EPD-DW-B-061723 TO-15 110-54-3 HEXANE 2.5 u 0.23 2.5 UG/M3 2.5 u EPD-DW-B-061723 TO-15 75-09-2 METHYLENE CHLORIDE 0.46 J 0.31 0.99 UG/M3 0.46 J EPD-DW-B-061723 TO-15 103-65-1 PROPYLBENZENE 0.7 u 0.16 0.7 UG/M3 0.70 u EPD-DW-B-061723 TO-15 100-42-5 STYRENE 0.6 u 0.098 0.6 UG/M3 0.60 u EPD-DW-B-061723 TO-15 109-99-9 TETRAHYDROFURAN 2.1 u 0.35 2.1 UG/M3 2.1 u EPD-DW-B-061723 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.64 u 0.13 0.64 UG/M3 0.64 u EPD-DW-B-061723 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 u PPBV 0 U, NF EPD-DW-B-061723 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 u PPBV 0 U, NF Page 1 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-DW-B-061723 TO-15 541-05-9 CYCLOTRISILOXANE, HEXAMETHYL- 0.83 NJ PPBV 0.83 NJ EPD-DW-B-061723 TO-15 2916-68-9 ETHANOL, 2-(TR 1METHYLSILYL)- 1 NJ PPBV 1.0 NJ EPD-DW-B-061723 TO-15 NA UNKNOWN TIC 1.3 J PPBV 1.3 J EPD-DW-B-061723 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.15 U 0.02 0.15 UG/M3 0.15 U EPD-DW-B-061723 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.19 U 0.083 0.19 UG/M3 0.19 U EPD-DW-B-061723 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.15 U 0.053 0.15 UG/M3 0.15 U EPD-DW-B-061723 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.11 U 0.016 0.11 UG/M3 0.11 U EPD-DW-B-061723 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.056 U 0.022 0.056 UG/M3 0.056 U EPD-DW-B-061723 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.077 0.22 UG/M3 0.22 U EPD-DW-B-061723 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.058 J 0.029 0.11 UG/M3 0.058 J EPD-DW-B-061723 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.06 0.17 UG/M3 0.17 U EPD-DW-B-061723 TO-15 SIM 71-43-2 BENZENE 0.49 0.026 0.23 UG/M3 0.49 EPD-DW-B-061723 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.49 0.038 0.18 UG/M3 0.49 EPD-DW-B-061723 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.02 0.19 UG/M3 0.19 U EPD-DW-B-061723 TO-15 SIM 67-66-3 CHLOROFORM 0.11 J 0.02 0.14 UG/M3 0.11 J EPD-DW-B-061723 TO-15 SIM 74-87-3 CHLOROMETHANE 0.96 J 0.3 1.5 UG/M3 0.96 J EPD-DW-B-061723 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.01 0.11 UG/M3 0.11 U EPD-DW-B-061723 TO-15 SIM 100-41-4 ETHYL BENZENE 0.044 J 0.012 0.12 UG/M3 0.044 J EPD-DW-B-061723 TO-15 SIM 76-14-2 FREON114 0.12 J 0.016 0.2 UG/M3 0.12 J EPD-DW-B-061723 TO-15 SIM 75-71-8 FREON 12 2.4 0.026 0.35 UG/M3 2.4 EPD-DW-B-061723 TO-15 SIM 179601-23-1 M,P-XYLENE 0.12 J 0.0075 0.25 UG/M3 0.12 J EPD-DW-B-061723 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.51 U 0.014 0.51 UG/M3 0.51 U EPD-DW-B-061723 TO-15 SIM 91-20-3 NAPHTHALENE 0.37 U 0.11 0.37 UG/M3 0.37 U EPD-DW-B-061723 TO-15 SIM 95-47-6 O-XYLENE 0.048 J 0.01 0.12 UG/M3 0.048 J EPD-DW-B-061723 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.19 U 0.1 0.19 UG/M3 0.19 U EPD-DW-B-061723 TO-15 SIM 108-88-3 TOLUENE 0.36 0.014 0.27 UG/M3 0.36 EPD-DW-B-061723 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.56 U 0.013 0.56 UG/M3 0.56 U EPD-DW-B-061723 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.15 U 0.021 0.15 UG/M3 0.15 U EPD-DW-B-061723 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.036 U 0.01 0.036 UG/M3 0.036 U EPD-UW-F-061723 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.5 U 1.2 5.5 UG/M3 5.5 U EPD-UW-F-061723 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.19 J 0.18 0.73 UG/M3 0.19 J EPD-UW-F-061723 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.89 U 0.14 0.89 UG/M3 0.89 U EPD-UW-F-061723 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.68 U 0.14 0.68 UG/M3 0.68 U EPD-UW-F-061723 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.73 U 0.15 0.73 UG/M3 0.73 U EPD-UW-F-061723 TO-15 106-99-0 1,3-BUTADIENE 0.33 U 0.045 0.33 UG/M3 0.33 U EPD-UW-F-061723 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.89 U 0.088 0.89 UG/M3 0.89 U EPD-UW-F-061723 TO-15 123-91-1 1,4-DIOXANE 0.53 U 0.077 0.53 UG/M3 0.53 U EPD-UW-F-061723 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.25 J 0.22 3.4 UG/M3 0.25 J EPD-UW-F-061723 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.53 J 0.37 2.2 UG/M3 0.53 J Page 2 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-UW-F-061723 TO-15 591-78-6 2-HEXANONE 3 U 0.58 3 UG/M3 3.0 U EPD-UW-F-061723 TO-15 67-63-0 2-PROPANOL 7.3 U 0.18 7.3 UG/M3 7.3 U EPD-UW-F-061723 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.2 2.3 UG/M3 2.3 U EPD-UW-F-061723 TO-15 622-96-8 4-ETHYLTOLUENE 0.73 U 0.12 0.73 UG/M3 0.73 U EPD-UW-F-061723 TO-15 108-10-1 4-M ETH YL-2-PENTANON E 0.61 U 0.18 0.61 UG/M3 0.61 U EPD-UW-F-061723 TO-15 67-64-1 ACETONE 7.2 0.53 7 UG/M3 7.2 EPD-UW-F-061723 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.77 U 0.22 0.77 UG/M3 0.77 U EPD-UW-F-061723 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.99 U 0.12 0.99 UG/M3 0.99 U EPD-UW-F-061723 TO-15 75-25-2 BROMOFORM 1.5 U 0.15 1.5 UG/M3 1.5 U EPD-UW-F-061723 TO-15 74-83-9 BROMOMETHANE 29 U 1.4 29 UG/M3 29 U EPD-UW-F-061723 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.1 2.3 UG/M3 2.3 U EPD-UW-F-061723 TO-15 108-90-7 CHLOROBENZENE 0.68 U 0.078 0.68 UG/M3 0.68 U EPD-UW-F-061723 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.67 U 0.18 0.67 UG/M3 0.67 U EPD-UW-F-061723 TO-15 98-82-8 CUMENE 0.73 U 0.067 0.73 UG/M3 0.73 U EPD-UW-F-061723 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.43 2.5 UG/M3 2.5 U EPD-UW-F-061723 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.18 1.3 UG/M3 1.3 U EPD-UW-F-061723 TO-15 64-17-5 ETHANOL 1.4 J 0.71 17 UG/M3 1.4 J+ EPD-UW-F-061723 TO-15 75-69-4 FREON 11 1.2 0.12 0.83 UG/M3 1.2 EPD-UW-F-061723 TO-15 76-13-1 FREON 113 0.42 J 0.12 1.1 UG/M3 0.42 J EPD-UW-F-061723 TO-15 142-82-5 HEPTANE 3 U 0.42 3 UG/M3 3.0 u EPD-UW-F-061723 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.9 U 0.52 7.9 UG/M3 7.9 u EPD-UW-F-061723 TO-15 110-54-3 HEXANE 0.27 J 0.24 2.6 UG/M3 0.27 J EPD-UW-F-061723 TO-15 75-09-2 METHYLENE CHLORIDE 0.43 J 0.32 1 UG/M3 0.43 J EPD-UW-F-061723 TO-15 103-65-1 PROPYLBENZENE 0.73 U 0.17 0.73 UG/M3 0.73 u EPD-UW-F-061723 TO-15 100-42-5 STYRENE 0.63 U 0.1 0.63 UG/M3 0.63 u EPD-UW-F-061723 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.37 2.2 UG/M3 2.2 u EPD-UW-F-061723 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.67 U 0.14 0.67 UG/M3 0.67 u EPD-UW-F-061723 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-UW-F-061723 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-UW-F-061723 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 u 0.021 0.16 UG/M3 0.16 U EPD-UW-F-061723 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 u 0.086 0.2 UG/M3 0.20 U EPD-UW-F-061723 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 u 0.056 0.16 UG/M3 0.16 U EPD-UW-F-061723 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 u 0.017 0.12 UG/M3 0.12 U EPD-UW-F-061723 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 u 0.022 0.059 UG/M3 0.059 U EPD-UW-F-061723 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 u 0.08 0.23 UG/M3 0.23 U EPD-UW-F-061723 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.058 J 0.03 0.12 UG/M3 0.058 J EPD-UW-F-061723 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 u 0.063 0.18 UG/M3 0.18 U EPD-UW-F-061723 TO-15 SIM 71-43-2 BENZENE 0.62 0.027 0.24 UG/M3 0.62 EPD-UW-F-061723 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.48 0.04 0.19 UG/M3 0.48 Page 3 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-UW-F-061723 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.021 0.2 UG/M3 0.20 U EPD-UW-F-061723 TO-15 SIM 67-66-3 CHLOROFORM 0.094 J 0.021 0.14 UG/M3 0.094 J EPD-UW-F-061723 TO-15 SIM 74-87-3 CHLOROMETHANE 0.87 J 0.31 1.5 UG/M3 0.87 J EPD-UW-F-061723 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.011 0.12 UG/M3 0.12 U EPD-UW-F-061723 TO-15 SIM 100-41-4 ETHYL BENZENE 0.086 J 0.012 0.13 UG/M3 0.086 J EPD-UW-F-061723 TO-15 SIM 76-14-2 FREON114 0.11 J 0.017 0.21 UG/M3 0.11 J EPD-UW-F-061723 TO-15 SIM 75-71-8 FREON 12 2.3 0.027 0.36 UG/M3 2.3 EPD-UW-F-061723 TO-15 SIM 179601-23-1 M,P-XYLENE 0.33 0.0078 0.26 UG/M3 0.33 EPD-UW-F-061723 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.53 U 0.014 0.53 UG/M3 0.53 U EPD-UW-F-061723 TO-15 SIM 91-20-3 NAPHTHALENE 0.39 U 0.11 0.39 UG/M3 0.39 U EPD-UW-F-061723 TO-15 SIM 95-47-6 O-XYLENE 0.12 J 0.011 0.13 UG/M3 0.12 J EPD-UW-F-061723 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.2 U 0.11 0.2 UG/M3 0.20 U EPD-UW-F-061723 TO-15 SIM 108-88-3 TOLUENE 0.73 0.014 0.28 UG/M3 0.73 EPD-UW-F-061723 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.59 U 0.013 0.59 UG/M3 0.59 U EPD-UW-F-061723 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-UW-F-061723 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.038 U 0.011 0.038 UG/M3 0.038 U EPD-WA-01-061723 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.5 U 1.2 5.5 UG/M3 5.5 U EPD-WA-01-061723 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.73 U 0.18 0.73 UG/M3 0.73 U EPD-WA-01-061723 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.89 U 0.14 0.89 UG/M3 0.89 U EPD-WA-01-061723 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.68 U 0.14 0.68 UG/M3 0.68 U EPD-WA-01-061723 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.73 U 0.15 0.73 UG/M3 0.73 U EPD-WA-01-061723 TO-15 106-99-0 1,3-BUTADIENE 0.33 U 0.045 0.33 UG/M3 0.33 U EPD-WA-01-061723 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.89 U 0.088 0.89 UG/M3 0.89 U EPD-WA-01-061723 TO-15 123-91-1 1,4-DIOXANE 0.079 J 0.077 0.53 UG/M3 0.079 J EPD-WA-01-061723 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.28 J 0.22 3.4 UG/M3 0.28 J EPD-WA-01-061723 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.83 J 0.37 2.2 UG/M3 0.83 J EPD-WA-01-061723 TO-15 591-78-6 2-HEXANONE 3 U 0.58 3 UG/M3 3.0 U EPD-WA-01-061723 TO-15 67-63-0 2-PROPANOL 7.3 U 0.18 7.3 UG/M3 7.3 U EPD-WA-01-061723 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.2 2.3 UG/M3 2.3 U EPD-WA-01-061723 TO-15 622-96-8 4-ETHYLTOLUENE 0.73 U 0.12 0.73 UG/M3 0.73 U EPD-WA-01-061723 TO-15 108-10-1 4-M ETH YL-2-PENTANON E 0.61 U 0.18 0.61 UG/M3 0.61 U EPD-WA-01-061723 TO-15 67-64-1 ACETONE 8.9 0.53 7 UG/M3 8.9 EPD-WA-01-061723 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.77 U 0.22 0.77 UG/M3 0.77 U EPD-WA-01-061723 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.99 U 0.12 0.99 UG/M3 0.99 U EPD-WA-01-061723 TO-15 75-25-2 BROMOFORM 1.5 U 0.15 1.5 UG/M3 1.5 U EPD-WA-01-061723 TO-15 74-83-9 BROMOMETHANE 29 U 1.4 29 UG/M3 29 U EPD-WA-01-061723 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.1 2.3 UG/M3 2.3 U EPD-WA-01-061723 TO-15 108-90-7 CHLOROBENZENE 0.68 u 0.078 0.68 UG/M3 0.68 U EPD-WA-01-061723 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.67 u 0.18 0.67 UG/M3 0.67 u Page 4 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result J < > EPD-WA-01-061723 TO-15 98-82-8 CUMENE 0.73 U 0.067 0.73 UG/M3 0.73 U EPD-WA-01-061723 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.43 2.5 UG/M3 2.5 u EPD-WA-01-061723 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.18 1.3 UG/M3 1.3 u EPD-WA-01-061723 TO-15 64-17-5 ETHANOL 3.1 J 0.71 17 UG/M3 3.1 J+ EPD-WA-01-061723 TO-15 75-69-4 FREON 11 1.2 0.12 0.83 UG/M3 1.2 EPD-WA-01-061723 TO-15 76-13-1 FREON 113 0.44 J 0.12 1.1 UG/M3 0.44 J EPD-WA-01-061723 TO-15 142-82-5 HEPTANE 3 U 0.42 3 UG/M3 3.0 u EPD-WA-01-061723 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.9 U 0.52 7.9 UG/M3 7.9 u EPD-WA-01-061723 TO-15 110-54-3 HEXANE 0.6 J 0.24 2.6 UG/M3 0.60 J EPD-WA-01-061723 TO-15 75-09-2 METHYLENE CHLORIDE 0.48 J 0.32 1 UG/M3 0.48 J EPD-WA-01-061723 TO-15 103-65-1 PROPYLBENZENE 0.73 U 0.17 0.73 UG/M3 0.73 u EPD-WA-01-061723 TO-15 100-42-5 STYRENE 0.63 U 0.1 0.63 UG/M3 0.63 u EPD-WA-01-061723 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.37 2.2 UG/M3 2.2 u EPD-WA-01-061723 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.67 U 0.14 0.67 UG/M3 0.67 u EPD-WA-01-061723 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-01-061723 TO-15 106-97-8 BUTANE 1.1 NJ PPBV 1.1 NJ EPD-WA-01-061723 TO-15 78-78-4 BUTANE, 2-METHYL- 1.8 NJ PPBV 1.8 NJ EPD-WA-01-061723 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-01-061723 TO-15 109-66-0 PENTANE 0.91 NJ PPBV 0.91 NJ EPD-WA-01-061723 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-01-061723 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.086 0.2 UG/M3 0.20 U EPD-WA-01-061723 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.056 0.16 UG/M3 0.16 U EPD-WA-01-061723 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.017 0.12 UG/M3 0.12 U EPD-WA-01-061723 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.022 0.059 UG/M3 0.059 U EPD-WA-01-061723 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.23 U 0.08 0.23 UG/M3 0.23 U EPD-WA-01-061723 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.061 J 0.03 0.12 UG/M3 0.061 J EPD-WA-01-061723 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.063 0.18 UG/M3 0.18 U EPD-WA-01-061723 TO-15 SIM 71-43-2 BENZENE 0.63 0.027 0.24 UG/M3 0.63 EPD-WA-01-061723 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.48 0.04 0.19 UG/M3 0.48 EPD-WA-01-061723 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.021 0.2 UG/M3 0.20 U EPD-WA-01-061723 TO-15 SIM 67-66-3 CHLOROFORM 0.09 J 0.021 0.14 UG/M3 0.090 J EPD-WA-01-061723 TO-15 SIM 74-87-3 CHLOROMETHANE 0.89 J 0.31 1.5 UG/M3 0.89 J EPD-WA-01-061723 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.011 0.12 UG/M3 0.12 U EPD-WA-01-061723 TO-15 SIM 100-41-4 ETHYL BENZENE 0.084 J 0.012 0.13 UG/M3 0.084 J EPD-WA-01-061723 TO-15 SIM 76-14-2 FREON114 0.11 J 0.017 0.21 UG/M3 0.11 J EPD-WA-01-061723 TO-15 SIM 75-71-8 FREON 12 2.4 0.027 0.36 UG/M3 2.4 EPD-WA-01-061723 TO-15 SIM 179601-23-1 M,P-XYLENE 0.29 0.0078 0.26 UG/M3 0.29 EPD-WA-01-061723 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.53 U 0.014 0.53 UG/M3 0.53 U EPD-WA-01-061723 TO-15 SIM 91-20-3 NAPHTHALENE 0.13 J 0.11 0.39 UG/M3 0.13 J Page 5 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-01-061723 TO-15 SIM 95-47-6 O-XYLENE 0.11 J 0.011 0.13 UG/M3 0.11 J EPD-WA-01-061723 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.2 U 0.11 0.2 UG/M3 0.20 U EPD-WA-01-061723 TO-15 SIM 108-88-3 TOLUENE 0.8 0.014 0.28 UG/M3 0.80 EPD-WA-01-061723 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.59 U 0.013 0.59 UG/M3 0.59 U EPD-WA-01-061723 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.022 0.16 UG/M3 0.16 U EPD-WA-01-061723 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.03 J 0.011 0.038 UG/M3 0.030 J EPD-WA-02-061723 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 6.3 U 1.4 6.3 UG/M3 6.3 U EPD-WA-02-061723 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.84 U 0.2 0.84 UG/M3 0.84 U EPD-WA-02-061723 TO-15 95-50-1 1,2-DICHLOROBENZENE 1 U 0.16 1 UG/M3 1.0 U EPD-WA-02-061723 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.78 U 0.16 0.78 UG/M3 0.78 U EPD-WA-02-061723 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.84 U 0.17 0.84 UG/M3 0.84 U EPD-WA-02-061723 TO-15 106-99-0 1,3-BUTADIENE 0.38 U 0.052 0.38 UG/M3 0.38 U EPD-WA-02-061723 TO-15 541-73-1 1,3-DICHLOROBENZENE 1 U 0.1 1 UG/M3 1.0 U EPD-WA-02-061723 TO-15 123-91-1 1,4-DIOXANE 0.61 U 0.088 0.61 UG/M3 0.61 U EPD-WA-02-061723 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 4 U 0.26 4 UG/M3 4.0 U EPD-WA-02-061723 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.4 J 0.43 2.5 UG/M3 1.4 J EPD-WA-02-061723 TO-15 591-78-6 2-HEXANONE 3.5 U 0.66 3.5 UG/M3 3.5 U EPD-WA-02-061723 TO-15 67-63-0 2-PROPANOL 8.4 U 0.2 8.4 UG/M3 8.4 U EPD-WA-02-061723 TO-15 107-05-1 3-CHLOROPROPENE 2.7 U 0.24 2.7 UG/M3 2.7 U EPD-WA-02-061723 TO-15 622-96-8 4-ETHYLTOLUENE 0.84 U 0.14 0.84 UG/M3 0.84 U EPD-WA-02-061723 TO-15 108-10-1 4-M ETH YL-2-PENTANON E 0.7 U 0.21 0.7 UG/M3 0.70 U EPD-WA-02-061723 TO-15 67-64-1 ACETONE 11 0.6 8.1 UG/M3 11 EPD-WA-02-061723 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.88 U 0.26 0.88 UG/M3 0.88 U EPD-WA-02-061723 TO-15 75-27-4 BROMODICHLOROM ETHANE 1.1 U 0.14 1.1 UG/M3 1.1 U EPD-WA-02-061723 TO-15 75-25-2 BROMOFORM 1.8 U 0.17 1.8 UG/M3 1.8 U EPD-WA-02-061723 TO-15 74-83-9 BROMOMETHANE 33 U 1.6 33 UG/M3 33 U EPD-WA-02-061723 TO-15 75-15-0 CARBON DISULFIDE 2.6 U 0.12 2.6 UG/M3 2.6 U EPD-WA-02-061723 TO-15 108-90-7 CHLOROBENZENE 0.78 U 0.09 0.78 UG/M3 0.78 U EPD-WA-02-061723 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.77 U 0.21 0.77 UG/M3 0.77 U EPD-WA-02-061723 TO-15 98-82-8 CUMENE 0.84 U 0.077 0.84 UG/M3 0.84 U EPD-WA-02-061723 TO-15 110-82-7 CYCLOHEXANE 2.9 U 0.49 2.9 UG/M3 2.9 U EPD-WA-02-061723 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.4 U 0.21 1.4 UG/M3 1.4 U EPD-WA-02-061723 TO-15 64-17-5 ETHANOL 2.4 J 0.81 20 UG/M3 2.4 J+ EPD-WA-02-061723 TO-15 75-69-4 FREON 11 1.2 0.14 0.96 UG/M3 1.2 EPD-WA-02-061723 TO-15 76-13-1 FREON 113 0.44 J 0.13 1.3 UG/M3 0.44 J EPD-WA-02-061723 TO-15 142-82-5 HEPTANE 3.5 U 0.48 3.5 UG/M3 3.5 U EPD-WA-02-061723 TO-15 87-68-3 HEXACHLOROBUTADIENE 9.1 U 0.6 9.1 UG/M3 9.1 U EPD-WA-02-061723 TO-15 110-54-3 HEXANE 0.35 J 0.27 3 UG/M3 0.35 J EPD-WA-02-061723 TO-15 75-09-2 METHYLENE CHLORIDE 0.42 J 0.37 1.2 UG/M3 0.42 J Page 6 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-02-061723 TO-15 103-65-1 PROPYLBENZENE 0.84 U 0.19 0.84 UG/M3 0.84 U EPD-WA-02-061723 TO-15 100-42-5 STYRENE 0.72 U 0.12 0.72 UG/M3 0.72 U EPD-WA-02-061723 TO-15 109-99-9 TETRAHYDROFURAN 2.5 U 0.42 2.5 UG/M3 2.5 U EPD-WA-02-061723 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.77 U 0.16 0.77 UG/M3 0.77 U EPD-WA-02-061723 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-02-061723 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-02-061723 TO-15 541-05-9 CYCLOTRISILOXANE, H EXAM ETHYL- 3.6 NJ PPBV 3.6 NJ EPD-WA-02-061723 TO-15 NA UNKNOWN TIC 1.3 J PPBV 1.3 J EPD-WA-02-061723 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.18 U 0.024 0.18 UG/M3 0.18 U EPD-WA-02-061723 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.23 U 0.099 0.23 UG/M3 0.23 U EPD-WA-02-061723 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.18 U 0.064 0.18 UG/M3 0.18 U EPD-WA-02-061723 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.14 U 0.019 0.14 UG/M3 0.14 U EPD-WA-02-061723 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.067 U 0.026 0.067 UG/M3 0.067 U EPD-WA-02-061723 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.26 U 0.092 0.26 UG/M3 0.26 U EPD-WA-02-061723 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.062 J 0.035 0.14 UG/M3 0.062 J EPD-WA-02-061723 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.2 U 0.072 0.2 UG/M3 0.20 U EPD-WA-02-061723 TO-15 SIM 71-43-2 BENZENE 0.56 0.031 0.27 UG/M3 0.56 EPD-WA-02-061723 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.46 0.045 0.21 UG/M3 0.46 EPD-WA-02-061723 TO-15 SIM 75-00-3 CHLOROETHANE 0.22 U 0.024 0.22 UG/M3 0.22 U EPD-WA-02-061723 TO-15 SIM 67-66-3 CHLOROFORM 0.088 J 0.024 0.17 UG/M3 0.088 J EPD-WA-02-061723 TO-15 SIM 74-87-3 CHLOROMETHANE 0.91 J 0.35 1.8 UG/M3 0.91 J EPD-WA-02-061723 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.13 U 0.012 0.13 UG/M3 0.13 U EPD-WA-02-061723 TO-15 SIM 100-41-4 ETHYL BENZENE 0.08 J 0.014 0.15 UG/M3 0.080 J EPD-WA-02-061723 TO-15 SIM 76-14-2 FREON114 0.11 J 0.019 0.24 UG/M3 0.11 J EPD-WA-02-061723 TO-15 SIM 75-71-8 FREON 12 2.3 0.031 0.42 UG/M3 2.3 EPD-WA-02-061723 TO-15 SIM 179601-23-1 M,P-XYLENE 0.25 J 0.009 0.3 UG/M3 0.25 J EPD-WA-02-061723 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.61 U 0.017 0.61 UG/M3 0.61 U EPD-WA-02-061723 TO-15 SIM 91-20-3 NAPHTHALENE 0.44 U 0.13 0.44 UG/M3 0.44 U EPD-WA-02-061723 TO-15 SIM 95-47-6 O-XYLENE 0.095 J 0.012 0.15 UG/M3 0.095 J EPD-WA-02-061723 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.23 U 0.13 0.23 UG/M3 0.23 U EPD-WA-02-061723 TO-15 SIM 108-88-3 TOLUENE 0.59 0.016 0.32 UG/M3 0.59 EPD-WA-02-061723 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.67 U 0.016 0.67 UG/M3 0.67 U EPD-WA-02-061723 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.18 U 0.025 0.18 UG/M3 0.18 U EPD-WA-02-061723 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.043 U 0.013 0.043 UG/M3 0.043 U EPD-WA-03-061723 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 6.5 U 1.4 6.5 UG/M3 6.5 U EPD-WA-03-061723 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.86 U 0.21 0.86 UG/M3 0.86 U EPD-WA-03-061723 TO-15 95-50-1 1,2-DICHLOROBENZENE 1 U 0.16 1 UG/M3 1.0 U EPD-WA-03-061723 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.81 U 0.16 0.81 UG/M3 0.81 U EPD-WA-03-061723 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.86 U 0.17 0.86 UG/M3 0.86 U Page 7 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-03-061723 TO-15 106-99-0 1,3-BUTADIENE 0.39 U 0.053 0.39 UG/M3 0.39 U EPD-WA-03-061723 TO-15 541-73-1 1,3-DICHLOROBENZENE 1 U 0.1 1 UG/M3 1.0 U EPD-WA-03-061723 TO-15 123-91-1 1,4-DIOXANE 0.25 J 0.091 0.63 UG/M3 0.25 J EPD-WA-03-061723 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 4.1 U 0.26 4.1 UG/M3 4.1 U EPD-WA-03-061723 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.61 J 0.44 2.6 UG/M3 0.61 J EPD-WA-03-061723 TO-15 591-78-6 2-HEXANONE 3.6 U 0.68 3.6 UG/M3 3.6 U EPD-WA-03-061723 TO-15 67-63-0 2-PROPANOL 8.6 U 0.21 8.6 UG/M3 8.6 U EPD-WA-03-061723 TO-15 107-05-1 3-CHLOROPROPENE 2.7 U 0.24 2.7 UG/M3 2.7 U EPD-WA-03-061723 TO-15 622-96-8 4-ETHYLTOLUENE 0.86 U 0.15 0.86 UG/M3 0.86 U EPD-WA-03-061723 TO-15 108-10-1 4-M ETH YL-2-PENTANON E 0.72 U 0.22 0.72 UG/M3 0.72 U EPD-WA-03-061723 TO-15 67-64-1 ACETONE 7.6 J 0.62 8.3 UG/M3 7.6 J EPD-WA-03-061723 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.9 U 0.26 0.9 UG/M3 0.90 U EPD-WA-03-061723 TO-15 75-27-4 BROMODICHLOROM ETHANE 1.2 U 0.15 1.2 UG/M3 1.2 U EPD-WA-03-061723 TO-15 75-25-2 BROMOFORM 1.8 U 0.17 1.8 UG/M3 1.8 U EPD-WA-03-061723 TO-15 74-83-9 BROMOMETHANE 34 U 1.6 34 UG/M3 34 U EPD-WA-03-061723 TO-15 75-15-0 CARBON DISULFIDE 2.7 U 0.12 2.7 UG/M3 2.7 U EPD-WA-03-061723 TO-15 108-90-7 CHLOROBENZENE 0.8 U 0.093 0.8 UG/M3 0.80 U EPD-WA-03-061723 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.79 U 0.21 0.79 UG/M3 0.79 U EPD-WA-03-061723 TO-15 98-82-8 CUMENE 0.86 U 0.079 0.86 UG/M3 0.86 U EPD-WA-03-061723 TO-15 110-82-7 CYCLOHEXANE 3 U 0.51 3 UG/M3 3.0 U EPD-WA-03-061723 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.5 U 0.22 1.5 UG/M3 1.5 U EPD-WA-03-061723 TO-15 64-17-5 ETHANOL 1.6 J 0.84 20 UG/M3 1.6 J+ EPD-WA-03-061723 TO-15 75-69-4 FREON 11 1.3 0.15 0.98 UG/M3 1.3 EPD-WA-03-061723 TO-15 76-13-1 FREON 113 0.44 J 0.14 1.3 UG/M3 0.44 J EPD-WA-03-061723 TO-15 142-82-5 HEPTANE 3.6 U 0.5 3.6 UG/M3 3.6 u EPD-WA-03-061723 TO-15 87-68-3 HEXACHLOROBUTADIENE 9.3 U 0.61 9.3 UG/M3 9.3 u EPD-WA-03-061723 TO-15 110-54-3 HEXANE 3.1 U 0.28 3.1 UG/M3 3.1 u EPD-WA-03-061723 TO-15 75-09-2 METHYLENE CHLORIDE 0.41 J 0.38 1.2 UG/M3 0.41 J EPD-WA-03-061723 TO-15 103-65-1 PROPYLBENZENE 0.86 U 0.2 0.86 UG/M3 0.86 u EPD-WA-03-061723 TO-15 100-42-5 STYRENE 0.74 u 0.12 0.74 UG/M3 0.74 u EPD-WA-03-061723 TO-15 109-99-9 TETRAHYDROFURAN 2.6 u 0.44 2.6 UG/M3 2.6 u EPD-WA-03-061723 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.79 u 0.16 0.79 UG/M3 0.79 u EPD-WA-03-061723 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 u PPBV 0 U, NF EPD-WA-03-061723 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 u PPBV 0 U, NF EPD-WA-03-061723 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.19 u 0.025 0.19 UG/M3 0.19 U EPD-WA-03-061723 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.24 u 0.1 0.24 UG/M3 0.24 U EPD-WA-03-061723 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.19 u 0.066 0.19 UG/M3 0.19 U EPD-WA-03-061723 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.14 u 0.02 0.14 UG/M3 0.14 U EPD-WA-03-061723 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.069 u 0.027 0.069 UG/M3 0.069 U Page 8 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-03-061723 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.27 U 0.095 0.27 UG/M3 0.27 U EPD-WA-03-061723 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.062 J 0.036 0.14 UG/M3 0.062 J EPD-WA-03-061723 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.21 U 0.074 0.21 UG/M3 0.21 U EPD-WA-03-061723 TO-15 SIM 71-43-2 BENZENE 0.61 0.032 0.28 UG/M3 0.61 EPD-WA-03-061723 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.5 0.047 0.22 UG/M3 0.50 EPD-WA-03-061723 TO-15 SIM 75-00-3 CHLOROETHANE 0.23 U 0.025 0.23 UG/M3 0.23 U EPD-WA-03-061723 TO-15 SIM 67-66-3 CHLOROFORM 0.097 J 0.025 0.17 UG/M3 0.097 J EPD-WA-03-061723 TO-15 SIM 74-87-3 CHLOROMETHANE 0.98 J 0.36 1.8 UG/M3 0.98 J EPD-WA-03-061723 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.14 U 0.013 0.14 UG/M3 0.14 U EPD-WA-03-061723 TO-15 SIM 100-41-4 ETHYL BENZENE 0.074 J 0.015 0.15 UG/M3 0.074 J EPD-WA-03-061723 TO-15 SIM 76-14-2 FREON114 0.12 J 0.02 0.24 UG/M3 0.12 J EPD-WA-03-061723 TO-15 SIM 75-71-8 FREON 12 2.4 0.032 0.43 UG/M3 2.4 EPD-WA-03-061723 TO-15 SIM 179601-23-1 M,P-XYLENE 0.25 J 0.0093 0.3 UG/M3 0.25 J EPD-WA-03-061723 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.63 U 0.017 0.63 UG/M3 0.63 U EPD-WA-03-061723 TO-15 SIM 91-20-3 NAPHTHALENE 0.46 U 0.13 0.46 UG/M3 0.46 U EPD-WA-03-061723 TO-15 SIM 95-47-6 O-XYLENE 0.093 J 0.013 0.15 UG/M3 0.093 J EPD-WA-03-061723 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.24 U 0.13 0.24 UG/M3 0.24 U EPD-WA-03-061723 TO-15 SIM 108-88-3 TOLUENE 0.61 0.017 0.33 UG/M3 0.61 EPD-WA-03-061723 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.69 U 0.016 0.69 UG/M3 0.69 U EPD-WA-03-061723 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.19 U 0.026 0.19 UG/M3 0.19 U EPD-WA-03-061723 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.045 U 0.013 0.045 UG/M3 0.045 U EPD-WA-04-061723 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 1.2 5.4 UG/M3 5.4 U EPD-WA-04-061723 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.18 J 0.17 0.71 UG/M3 0.18 J EPD-WA-04-061723 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.87 U 0.14 0.87 UG/M3 0.87 U EPD-WA-04-061723 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.67 U 0.14 0.67 UG/M3 0.67 U EPD-WA-04-061723 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.71 U 0.14 0.71 UG/M3 0.71 U EPD-WA-04-061723 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.044 0.32 UG/M3 0.32 U EPD-WA-04-061723 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.87 U 0.087 0.87 UG/M3 0.87 U EPD-WA-04-061723 TO-15 123-91-1 1,4-DIOXANE 0.52 U 0.076 0.52 UG/M3 0.52 U EPD-WA-04-061723 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.28 J 0.22 3.4 UG/M3 0.28 J EPD-WA-04-061723 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.1 J 0.36 2.1 UG/M3 1.1 J EPD-WA-04-061723 TO-15 591-78-6 2-HEXANONE 3 U 0.56 3 UG/M3 3.0 U EPD-WA-04-061723 TO-15 67-63-0 2-PROPANOL 7.1 U 0.17 7.1 UG/M3 7.1 U EPD-WA-04-061723 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.2 2.3 UG/M3 2.3 U EPD-WA-04-061723 TO-15 622-96-8 4-ETHYLTOLUENE 0.71 U 0.12 0.71 UG/M3 0.71 U EPD-WA-04-061723 TO-15 108-10-1 4-M ETH YL-2-PENTANON E 0.59 U 0.18 0.59 UG/M3 0.59 U EPD-WA-04-061723 TO-15 67-64-1 ACETONE 7.2 0.52 6.9 UG/M3 7.2 EPD-WA-04-061723 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.75 U 0.22 0.75 UG/M3 0.75 U EPD-WA-04-061723 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.97 U 0.12 0.97 UG/M3 0.97 U Page 9 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-061723 TO-15 75-25-2 BROMOFORM 1.5 U 0.14 1.5 UG/M3 1.5 U EPD-WA-04-061723 TO-15 74-83-9 BROMOMETHANE 28 U 1.3 28 UG/M3 28 U EPD-WA-04-061723 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.1 2.2 UG/M3 2.2 U EPD-WA-04-061723 TO-15 108-90-7 CHLOROBENZENE 0.67 U 0.077 0.67 UG/M3 0.67 U EPD-WA-04-061723 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.66 U 0.18 0.66 UG/M3 0.66 U EPD-WA-04-061723 TO-15 98-82-8 CUMENE 0.71 U 0.066 0.71 UG/M3 0.71 U EPD-WA-04-061723 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.42 2.5 UG/M3 2.5 U EPD-WA-04-061723 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.18 1.2 UG/M3 1.2 U EPD-WA-04-061723 TO-15 64-17-5 ETHANOL 2.5 J 0.69 17 UG/M3 2.5 J+ EPD-WA-04-061723 TO-15 75-69-4 FREON 11 1.3 0.12 0.81 UG/M3 1.3 EPD-WA-04-061723 TO-15 76-13-1 FREON 113 0.51 J 0.11 1.1 UG/M3 0.51 J EPD-WA-04-061723 TO-15 142-82-5 HEPTANE 3 U 0.41 3 UG/M3 3.0 U EPD-WA-04-061723 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.7 U 0.51 7.7 UG/M3 7.7 u EPD-WA-04-061723 TO-15 110-54-3 HEXANE 0.31 J 0.23 2.6 UG/M3 0.31 J EPD-WA-04-061723 TO-15 75-09-2 METHYLENE CHLORIDE 0.48 J 0.31 1 UG/M3 0.48 J EPD-WA-04-061723 TO-15 103-65-1 PROPYLBENZENE 0.71 U 0.16 0.71 UG/M3 0.71 u EPD-WA-04-061723 TO-15 100-42-5 STYRENE 0.62 U 0.1 0.62 UG/M3 0.62 u EPD-WA-04-061723 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 0.36 2.1 UG/M3 2.1 u EPD-WA-04-061723 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.66 U 0.13 0.66 UG/M3 0.66 u EPD-WA-04-061723 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-04-061723 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-04-061723 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-04-061723 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.085 0.20 UG/M3 0.20 U EPD-WA-04-061723 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.054 0.16 UG/M3 0.16 U EPD-WA-04-061723 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.017 0.12 UG/M3 0.12 U EPD-WA-04-061723 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.057 U 0.022 0.057 UG/M3 0.057 U EPD-WA-04-061723 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.078 0.22 UG/M3 0.22 U EPD-WA-04-061723 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.06 J 0.03 0.12 UG/M3 0.060 J EPD-WA-04-061723 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 u 0.062 0.17 UG/M3 0.17 U EPD-WA-04-061723 TO-15 SIM 71-43-2 BENZENE 0.82 0.026 0.23 UG/M3 0.82 EPD-WA-04-061723 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.48 0.039 0.18 UG/M3 0.48 EPD-WA-04-061723 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 u 0.021 0.19 UG/M3 0.19 U EPD-WA-04-061723 TO-15 SIM 67-66-3 CHLOROFORM 0.087 J 0.021 0.14 UG/M3 0.087 J EPD-WA-04-061723 TO-15 SIM 74-87-3 CHLOROMETHANE 0.92 J 0.3 1.5 UG/M3 0.92 J EPD-WA-04-061723 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 u 0.011 0.11 UG/M3 0.11 U EPD-WA-04-061723 TO-15 SIM 100-41-4 ETHYL BENZENE 0.12 J 0.012 0.12 UG/M3 0.12 J EPD-WA-04-061723 TO-15 SIM 76-14-2 FREON114 0.11 J 0.016 0.2 UG/M3 0.11 J EPD-WA-04-061723 TO-15 SIM 75-71-8 FREON 12 2.4 0.026 0.36 UG/M3 2.4 EPD-WA-04-061723 TO-15 SIM 179601-23-1 M,P-XYLENE 0.38 0.0077 0.25 UG/M3 0.38 Page 10 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-061723 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.52 U 0.014 0.52 UG/M3 0.52 U EPD-WA-04-061723 TO-15 SIM 91-20-3 NAPHTHALENE 0.38 U 0.11 0.38 UG/M3 0.38 U EPD-WA-04-061723 TO-15 SIM 95-47-6 O-XYLENE 0.15 0.011 0.12 UG/M3 0.15 EPD-WA-04-061723 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.2 U 0.11 0.2 UG/M3 0.20 U EPD-WA-04-061723 TO-15 SIM 108-88-3 TOLUENE 0.85 0.014 0.27 UG/M3 0.85 EPD-WA-04-061723 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.57 U 0.013 0.57 UG/M3 0.57 U EPD-WA-04-061723 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-04-061723 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.032 J 0.011 0.037 UG/M3 0.032 J EPD-WA-05-061723 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 1.2 5.4 UG/M3 5.4 U EPD-WA-05-061723 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.71 U 0.17 0.71 UG/M3 0.71 U EPD-WA-05-061723 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.87 U 0.14 0.87 UG/M3 0.87 U EPD-WA-05-061723 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.67 U 0.14 0.67 UG/M3 0.67 U EPD-WA-05-061723 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.71 U 0.14 0.71 UG/M3 0.71 U EPD-WA-05-061723 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.044 0.32 UG/M3 0.32 U EPD-WA-05-061723 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.87 U 0.087 0.87 UG/M3 0.87 U EPD-WA-05-061723 TO-15 123-91-1 1,4-DIOXANE 0.35 J 0.076 0.52 UG/M3 0.35 J EPD-WA-05-061723 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.28 J 0.22 3.4 UG/M3 0.28 J EPD-WA-05-061723 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.49 J 0.36 2.1 UG/M3 0.49 J EPD-WA-05-061723 TO-15 591-78-6 2-HEXANONE 3 U 0.56 3 UG/M3 3.0 U EPD-WA-05-061723 TO-15 67-63-0 2-PROPANOL 7.1 U 0.17 7.1 UG/M3 7.1 U EPD-WA-05-061723 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.2 2.3 UG/M3 2.3 U EPD-WA-05-061723 TO-15 622-96-8 4-ETHYLTOLUENE 0.71 U 0.12 0.71 UG/M3 0.71 U EPD-WA-05-061723 TO-15 108-10-1 4-M ETH YL-2-PENTANON E 0.59 U 0.18 0.59 UG/M3 0.59 U EPD-WA-05-061723 TO-15 67-64-1 ACETONE 9.6 0.52 6.9 UG/M3 9.6 EPD-WA-05-061723 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.75 U 0.22 0.75 UG/M3 0.75 U EPD-WA-05-061723 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.97 U 0.12 0.97 UG/M3 0.97 U EPD-WA-05-061723 TO-15 75-25-2 BROMOFORM 1.5 U 0.14 1.5 UG/M3 1.5 U EPD-WA-05-061723 TO-15 74-83-9 BROMOMETHANE 28 U 1.3 28 UG/M3 28 U EPD-WA-05-061723 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.1 2.2 UG/M3 2.2 U EPD-WA-05-061723 TO-15 108-90-7 CHLOROBENZENE 0.67 U 0.077 0.67 UG/M3 0.67 U EPD-WA-05-061723 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.66 U 0.18 0.66 UG/M3 0.66 U EPD-WA-05-061723 TO-15 98-82-8 CUMENE 0.71 U 0.066 0.71 UG/M3 0.71 U EPD-WA-05-061723 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.42 2.5 UG/M3 2.5 U EPD-WA-05-061723 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.18 1.2 UG/M3 1.2 U EPD-WA-05-061723 TO-15 64-17-5 ETHANOL 1.8 J 0.69 17 UG/M3 1.8 J+ EPD-WA-05-061723 TO-15 75-69-4 FREON 11 1.2 0.12 0.81 UG/M3 1.2 EPD-WA-05-061723 TO-15 76-13-1 FREON 113 0.49 J 0.11 1.1 UG/M3 0.49 J EPD-WA-05-061723 TO-15 142-82-5 HEPTANE 3 U 0.41 3 UG/M3 3.0 U EPD-WA-05-061723 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.7 U 0.51 7.7 UG/M3 7.7 U Page 11 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-05-061723 TO-15 110-54-3 HEXANE 0.31 J 0.23 2.6 UG/M3 0.31 J EPD-WA-05-061723 TO-15 75-09-2 METHYLENE CHLORIDE 0.49 J 0.31 1 UG/M3 0.49 J EPD-WA-05-061723 TO-15 103-65-1 PROPYLBENZENE 0.71 U 0.16 0.71 UG/M3 0.71 U EPD-WA-05-061723 TO-15 100-42-5 STYRENE 0.62 U 0.1 0.62 UG/M3 0.62 U EPD-WA-05-061723 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 0.36 2.1 UG/M3 2.1 U EPD-WA-05-061723 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.66 U 0.13 0.66 UG/M3 0.66 U EPD-WA-05-061723 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-05-061723 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-05-061723 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-05-061723 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 U 0.085 0.2 UG/M3 0.20 U EPD-WA-05-061723 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.054 0.16 UG/M3 0.16 U EPD-WA-05-061723 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.017 0.12 UG/M3 0.12 U EPD-WA-05-061723 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.057 U 0.022 0.057 UG/M3 0.057 U EPD-WA-05-061723 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.078 0.22 UG/M3 0.22 U EPD-WA-05-061723 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.06 J 0.03 0.12 UG/M3 0.060 J EPD-WA-05-061723 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.062 0.17 UG/M3 0.17 U EPD-WA-05-061723 TO-15 SIM 71-43-2 BENZENE 0.53 0.026 0.23 UG/M3 0.53 EPD-WA-05-061723 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.48 0.039 0.18 UG/M3 0.48 EPD-WA-05-061723 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.021 0.19 UG/M3 0.19 U EPD-WA-05-061723 TO-15 SIM 67-66-3 CHLOROFORM 0.099 J 0.021 0.14 UG/M3 0.099 J EPD-WA-05-061723 TO-15 SIM 74-87-3 CHLOROMETHANE 0.88 J 0.3 1.5 UG/M3 0.88 J EPD-WA-05-061723 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.011 0.11 UG/M3 0.11 U EPD-WA-05-061723 TO-15 SIM 100-41-4 ETHYL BENZENE 0.092 J 0.012 0.12 UG/M3 0.092 J EPD-WA-05-061723 TO-15 SIM 76-14-2 FREON114 0.11 J 0.016 0.2 UG/M3 0.11 J EPD-WA-05-061723 TO-15 SIM 75-71-8 FREON 12 2.3 0.026 0.36 UG/M3 2.3 EPD-WA-05-061723 TO-15 SIM 179601-23-1 M,P-XYLENE 0.32 0.0077 0.25 UG/M3 0.32 EPD-WA-05-061723 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.52 U 0.014 0.52 UG/M3 0.52 U EPD-WA-05-061723 TO-15 SIM 91-20-3 NAPHTHALENE 0.38 U 0.11 0.38 UG/M3 0.38 U EPD-WA-05-061723 TO-15 SIM 95-47-6 O-XYLENE 0.11 J 0.011 0.12 UG/M3 0.11 J EPD-WA-05-061723 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.2 U 0.11 0.2 UG/M3 0.20 U EPD-WA-05-061723 TO-15 SIM 108-88-3 TOLUENE 0.95 0.014 0.27 UG/M3 0.95 EPD-WA-05-061723 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.57 U 0.013 0.57 UG/M3 0.57 U EPD-WA-05-061723 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-05-061723 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.037 U 0.011 0.037 UG/M3 0.037 U EPD-WA-06-061723 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 1.2 5.4 UG/M3 5.4 U EPD-WA-06-061723 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.18 J 0.17 0.71 UG/M3 0.18 J EPD-WA-06-061723 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.87 U 0.14 0.87 UG/M3 0.87 U EPD-WA-06-061723 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.67 U 0.14 0.67 UG/M3 0.67 U EPD-WA-06-061723 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.71 u 0.14 0.71 UG/M3 0.71 U Page 12 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-06-061723 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.044 0.32 UG/M3 0.32 U EPD-WA-06-061723 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.87 U 0.087 0.87 UG/M3 0.87 U EPD-WA-06-061723 TO-15 123-91-1 1,4-DIOXANE 0.52 U 0.076 0.52 UG/M3 0.52 U EPD-WA-06-061723 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.26 J 0.22 3.4 UG/M3 0.26 J EPD-WA-06-061723 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.74 J 0.36 2.1 UG/M3 0.74 J EPD-WA-06-061723 TO-15 591-78-6 2-HEXANONE 3 U 0.56 3 UG/M3 3.0 U EPD-WA-06-061723 TO-15 67-63-0 2-PROPANOL 7.1 U 0.17 7.1 UG/M3 7.1 U EPD-WA-06-061723 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.2 2.3 UG/M3 2.3 U EPD-WA-06-061723 TO-15 622-96-8 4-ETHYLTOLUENE 0.71 U 0.12 0.71 UG/M3 0.71 U EPD-WA-06-061723 TO-15 108-10-1 4-M ETH YL-2-PENTANON E 0.59 U 0.18 0.59 UG/M3 0.59 U EPD-WA-06-061723 TO-15 67-64-1 ACETONE 9.4 0.52 6.9 UG/M3 9.4 EPD-WA-06-061723 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.75 U 0.22 0.75 UG/M3 0.75 U EPD-WA-06-061723 TO-15 75-27-4 BROMODICHLOROM ETHANE 0.97 U 0.12 0.97 UG/M3 0.97 U EPD-WA-06-061723 TO-15 75-25-2 BROMOFORM 1.5 U 0.14 1.5 UG/M3 1.5 U EPD-WA-06-061723 TO-15 74-83-9 BROMOMETHANE 28 U 1.3 28 UG/M3 28 U EPD-WA-06-061723 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.1 2.2 UG/M3 2.2 U EPD-WA-06-061723 TO-15 108-90-7 CHLOROBENZENE 0.67 U 0.077 0.67 UG/M3 0.67 U EPD-WA-06-061723 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.66 U 0.18 0.66 UG/M3 0.66 U EPD-WA-06-061723 TO-15 98-82-8 CUMENE 0.71 U 0.066 0.71 UG/M3 0.71 U EPD-WA-06-061723 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.42 2.5 UG/M3 2.5 U EPD-WA-06-061723 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.18 1.2 UG/M3 1.2 U EPD-WA-06-061723 TO-15 64-17-5 ETHANOL 2.4 J 0.69 17 UG/M3 2.4 J+ EPD-WA-06-061723 TO-15 75-69-4 FREON 11 1.3 0.12 0.81 UG/M3 1.3 EPD-WA-06-061723 TO-15 76-13-1 FREON 113 0.48 J 0.11 1.1 UG/M3 0.48 J EPD-WA-06-061723 TO-15 142-82-5 HEPTANE 3 U 0.41 3 UG/M3 3.0 u EPD-WA-06-061723 TO-15 87-68-3 HEXACHLOROBUTADIENE 7.7 U 0.51 7.7 UG/M3 7.7 u EPD-WA-06-061723 TO-15 110-54-3 HEXANE 0.27 J 0.23 2.6 UG/M3 0.27 J EPD-WA-06-061723 TO-15 75-09-2 METHYLENE CHLORIDE 0.49 J 0.31 1 UG/M3 0.49 J EPD-WA-06-061723 TO-15 103-65-1 PROPYLBENZENE 0.71 U 0.16 0.71 UG/M3 0.71 u EPD-WA-06-061723 TO-15 100-42-5 STYRENE 0.62 U 0.1 0.62 UG/M3 0.62 u EPD-WA-06-061723 TO-15 109-99-9 TETRAHYDROFURAN 2.1 u 0.36 2.1 UG/M3 2.1 u EPD-WA-06-061723 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.66 u 0.13 0.66 UG/M3 0.66 u EPD-WA-06-061723 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 u PPBV 0 U, NF EPD-WA-06-061723 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 u PPBV 0 U, NF EPD-WA-06-061723 TO-15 NA UNKNOWN TIC 0.84 J PPBV 0.84 J EPD-WA-06-061723 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 u UG/M3 0.16 U EPD-WA-06-061723 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.2 u 0.085 0.2 UG/M3 0.20 U EPD-WA-06-061723 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 u 0.054 0.16 UG/M3 0.16 U EPD-WA-06-061723 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 u 0.017 0.12 UG/M3 0.12 U Page 13 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-06-061723 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.057 U 0.022 0.057 UG/M3 0.057 U EPD-WA-06-061723 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.22 U 0.078 0.22 UG/M3 0.22 U EPD-WA-06-061723 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.062 J 0.03 0.12 UG/M3 0.062 J EPD-WA-06-061723 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.062 0.17 UG/M3 0.17 U EPD-WA-06-061723 TO-15 SIM 71-43-2 BENZENE 0.64 0.026 0.23 UG/M3 0.64 EPD-WA-06-061723 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.49 0.039 0.18 UG/M3 0.49 EPD-WA-06-061723 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.021 0.19 UG/M3 0.19 U EPD-WA-06-061723 TO-15 SIM 67-66-3 CHLOROFORM 0.1 J 0.021 0.14 UG/M3 0.10 J EPD-WA-06-061723 TO-15 SIM 74-87-3 CHLOROMETHANE 0.92 J 0.3 1.5 UG/M3 0.92 J EPD-WA-06-061723 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.011 0.11 UG/M3 0.11 U EPD-WA-06-061723 TO-15 SIM 100-41-4 ETHYL BENZENE 0.096 J 0.012 0.12 UG/M3 0.096 J EPD-WA-06-061723 TO-15 SIM 76-14-2 FREON114 0.12 J 0.016 0.2 UG/M3 0.12 J EPD-WA-06-061723 TO-15 SIM 75-71-8 FREON 12 2.4 0.026 0.36 UG/M3 2.4 EPD-WA-06-061723 TO-15 SIM 179601-23-1 M,P-XYLENE 0.33 0.0077 0.25 UG/M3 0.33 EPD-WA-06-061723 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.52 U 0.014 0.52 UG/M3 0.52 U EPD-WA-06-061723 TO-15 SIM 91-20-3 NAPHTHALENE 0.2 J 0.11 0.38 UG/M3 0.20 J EPD-WA-06-061723 TO-15 SIM 95-47-6 O-XYLENE 0.12 J 0.011 0.12 UG/M3 0.12 J EPD-WA-06-061723 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.33 0.11 0.2 UG/M3 0.33 EPD-WA-06-061723 TO-15 SIM 108-88-3 TOLUENE 0.66 0.014 0.27 UG/M3 0.66 EPD-WA-06-061723 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.57 U 0.013 0.57 UG/M3 0.57 U EPD-WA-06-061723 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.021 0.16 UG/M3 0.16 U EPD-WA-06-061723 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.037 U 0.011 0.037 UG/M3 0.037 U EPD-WA-22-061723 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.8 U 1.3 5.8 UG/M3 5.8 U EPD-WA-22-061723 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.76 U 0.18 0.76 UG/M3 0.76 U EPD-WA-22-061723 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.93 U 0.15 0.93 UG/M3 0.93 U EPD-WA-22-061723 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.72 U 0.15 0.72 UG/M3 0.72 U EPD-WA-22-061723 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.76 U 0.15 0.76 UG/M3 0.76 U EPD-WA-22-061723 TO-15 106-99-0 1,3-BUTADIENE 0.34 U 0.047 0.34 UG/M3 0.34 U EPD-WA-22-061723 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.93 U 0.093 0.93 UG/M3 0.93 U EPD-WA-22-061723 TO-15 123-91-1 1,4-DIOXANE 0.56 U 0.081 0.56 UG/M3 0.56 U EPD-WA-22-061723 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.28 J 0.24 3.6 UG/M3 0.28 J EPD-WA-22-061723 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.64 J 0.39 2.3 UG/M3 0.64 J EPD-WA-22-061723 TO-15 591-78-6 2-HEXANONE 3.2 U 0.6 3.2 UG/M3 3.2 U EPD-WA-22-061723 TO-15 67-63-0 2-PROPANOL 7.6 U 0.18 7.6 UG/M3 7.6 U EPD-WA-22-061723 TO-15 107-05-1 3-CHLOROPROPENE 2.4 U 0.21 2.4 UG/M3 2.4 U EPD-WA-22-061723 TO-15 622-96-8 4-ETHYLTOLUENE 0.76 U 0.13 0.76 UG/M3 0.76 U EPD-WA-22-061723 TO-15 108-10-1 4-M ETH YL-2-PENTANON E 0.63 U 0.19 0.63 UG/M3 0.63 U EPD-WA-22-061723 TO-15 67-64-1 ACETONE 8.2 0.55 7.4 UG/M3 8.2 EPD-WA-22-061723 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.8 U 0.23 0.8 UG/M3 0.80 U Page 14 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-22-061723 TO-15 75-27-4 BROMODICHLOROM ETHANE 1 U 0.13 1 UG/M3 1.0 U EPD-WA-22-061723 TO-15 75-25-2 BROMOFORM 1.6 U 0.15 1.6 UG/M3 1.6 U EPD-WA-22-061723 TO-15 74-83-9 BROMOMETHANE 30 U 1.4 30 UG/M3 30 U EPD-WA-22-061723 TO-15 75-15-0 CARBON DISULFIDE 2.4 U 0.11 2.4 UG/M3 2.4 U EPD-WA-22-061723 TO-15 108-90-7 CHLOROBENZENE 0.71 U 0.082 0.71 UG/M3 0.71 U EPD-WA-22-061723 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.7 U 0.19 0.7 UG/M3 0.70 U EPD-WA-22-061723 TO-15 98-82-8 CUMENE 0.76 U 0.07 0.76 UG/M3 0.76 U EPD-WA-22-061723 TO-15 110-82-7 CYCLOHEXANE 2.7 U 0.45 2.7 UG/M3 2.7 U EPD-WA-22-061723 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.19 1.3 UG/M3 1.3 U EPD-WA-22-061723 TO-15 64-17-5 ETHANOL 2 J 0.74 18 UG/M3 2.0 J+ EPD-WA-22-061723 TO-15 75-69-4 FREON 11 1.2 0.13 0.87 UG/M3 1.2 EPD-WA-22-061723 TO-15 76-13-1 FREON 113 0.5 J 0.12 1.2 UG/M3 0.50 J EPD-WA-22-061723 TO-15 142-82-5 HEPTANE 3.2 U 0.44 3.2 UG/M3 3.2 U EPD-WA-22-061723 TO-15 87-68-3 HEXACHLOROBUTADIENE 8.3 U 0.54 8.3 UG/M3 8.3 u EPD-WA-22-061723 TO-15 110-54-3 HEXANE 0.32 J 0.25 2.7 UG/M3 0.32 J EPD-WA-22-061723 TO-15 75-09-2 METHYLENE CHLORIDE 0.5 J 0.34 1.1 UG/M3 0.50 J EPD-WA-22-061723 TO-15 103-65-1 PROPYLBENZENE 0.76 U 0.18 0.76 UG/M3 0.76 u EPD-WA-22-061723 TO-15 100-42-5 STYRENE 0.66 U 0.11 0.66 UG/M3 0.66 u EPD-WA-22-061723 TO-15 109-99-9 TETRAHYDROFURAN 2.3 U 0.39 2.3 UG/M3 2.3 u EPD-WA-22-061723 TO-15 10061-02-6 TRANS-l,3-DICHLOROPROPENE 0.7 U 0.14 0.7 UG/M3 0.70 u EPD-WA-22-061723 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-22-061723 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTYL ESTER) 0 U PPBV 0 U, NF EPD-WA-22-061723 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.17 U 0.022 0.17 UG/M3 0.17 U EPD-WA-22-061723 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLOROETHANE 0.21 U 0.09 0.21 UG/M3 0.21 U EPD-WA-22-061723 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.17 U 0.058 0.17 UG/M3 0.17 U EPD-WA-22-061723 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.018 0.12 UG/M3 0.12 U EPD-WA-22-061723 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.061 U 0.024 0.061 UG/M3 0.061 U EPD-WA-22-061723 TO-15 SIM 106-93-4 1,2-DIBROMOETHANE (EDB) 0.24 u 0.084 0.24 UG/M3 0.24 U EPD-WA-22-061723 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.059 J 0.032 0.12 UG/M3 0.059 J EPD-WA-22-061723 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.19 u 0.066 0.19 UG/M3 0.19 U EPD-WA-22-061723 TO-15 SIM 71-43-2 BENZENE 0.57 0.028 0.25 UG/M3 0.57 EPD-WA-22-061723 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.48 0.041 0.2 UG/M3 0.48 EPD-WA-22-061723 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 u 0.022 0.2 UG/M3 0.20 U EPD-WA-22-061723 TO-15 SIM 67-66-3 CHLOROFORM 0.095 J 0.022 0.15 UG/M3 0.095 J EPD-WA-22-061723 TO-15 SIM 74-87-3 CHLOROMETHANE 0.93 J 0.32 1.6 UG/M3 0.93 J EPD-WA-22-061723 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 u 0.011 0.12 UG/M3 0.12 U EPD-WA-22-061723 TO-15 SIM 100-41-4 ETHYL BENZENE 0.078 J 0.013 0.13 UG/M3 0.078 J EPD-WA-22-061723 TO-15 SIM 76-14-2 FREON114 0.1 J 0.018 0.22 UG/M3 0.10 J EPD-WA-22-061723 TO-15 SIM 75-71-8 FREON 12 2.4 0.028 0.38 UG/M3 2.4 Page 15 of 16 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306430 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-22-061723 TO-15 SIM 179601-23-1 M,P-XYLENE 0.24 J 0.0082 0.27 UG/M3 0.24 J EPD-WA-22-061723 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.56 U 0.015 0.56 UG/M3 0.56 U EPD-WA-22-061723 TO-15 SIM 91-20-3 NAPHTHALENE 0.41 U 0.12 0.41 UG/M3 0.41 U EPD-WA-22-061723 TO-15 SIM 95-47-6 O-XYLENE 0.093 J 0.011 0.13 UG/M3 0.093 J EPD-WA-22-061723 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.21 U 0.12 0.21 UG/M3 0.21 U EPD-WA-22-061723 TO-15 SIM 108-88-3 TOLUENE 0.59 0.015 0.29 UG/M3 0.59 EPD-WA-22-061723 TO-15 SIM 156-60-5 TRANS-l,2-DICHLOROETHENE 0.61 U 0.014 0.61 UG/M3 0.61 U EPD-WA-22-061723 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.17 U 0.023 0.17 UG/M3 0.17 U EPD-WA-22-061723 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.04 U 0.011 0.04 UG/M3 0.040 U Page 16 of 16 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT Site Name E Palestine Site - ER TO/TOLIN No. 68HE0520F0032/000IEB201 Document Tracking No. 1993d Laboratory Report No. 2306431 Laboratory Eurofins Air Toxics, LLC, Folsom CA Analyses Volatile organic compounds (VOCs) by EPA method TO-15 in scan anc selected ion monitoring (SIM) modes Samples and Matrix Nine air samples, including one field duplicate Collection Date(s) 6/19/2023 Field Duplicate Pairs EPD-WA-11-061923/EPD-WA-01-061923 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 East Palestine Train Derailment Site East Palestine, Columbiana County, Ohio, Revision 3 (April 2023), 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 sample/laboratory control sample duplicate relative percent differences (RPD) were not provided in the Level II laboratory report. The lab provided the RPDs separately. No qualifications were applied. 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/pressure values in the laboratory report were recorded as positive values. The laboratory was contacted and confirmed that all values are negative, even though the minus signs are missing, and that the laboratory uses 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. The laboratory-measured residual vacuum for EPD-WA-03-061923 listed on the laboratory summary was -10.5"Hg. This residual vacuum value suggests that the canister filled more slowly than intended over the allotted time and therefore the sample volume is lower than planned. The lower volume may have affected the analytical sensitivity (possibly leading to elevated method detection limit (MDL) and reporting limit (RL) values). The sample may not be representative of the full collection period, therefore analytical results for EPD-WA-03-061923 should be used with caution. Method blanks: Within Criteria Exceedance/Notes TO-15 scan (2306431-10A): 1,2-Dichlorobenzene, 1,3-dichlorobenzene, and alpha-chlorotoluene were detected in the method blank at levels between the MDL and RL. Associated sample results are nondetect, therefore no qualifications were necessary. TO-15 SIM (2306431-10B): 1,1,2,2-Tetrachloroethane, 1,2-dichloroethane, 1,4-dichlorobenzene, m,p-xylene, naphthalene, and o- xylene were detected in the method blank at levels between the MDL and RL. All 1,1,2,2-tetrachloroethane and 1,4- dichlorobenzene results are non-detect, therefore no qualifications were necessary. 1,2-Dichloroethane results were qualified as not detected (flagged U) at the RL. All m,p-xylene sample results are greater than ten times the blank value, therefore no qualifications were applied. The naphthalene result in EPD-WA-06-061923 was qualified as estimated with possible high bias (flagged J+). Naphthalene in EPD-WA-04-061923 was nondetect, therefore no qualification was necessary. All other naphthalene results were qualified as not detected (flagged U) at the RL. O-xylene results in EPD-DW-E-061923, EPD-WA-02-061923, EPD-WA- 06-061923, and EPD-WA-11-061923 were qualified as estimated with possible high bias (flagged J+). O-xylene results in EPD-UW-A- 061923 and EPD-WA-04-061923 were qualified as nondetect (flagged U) at the RL. All other O-xylene results were greater than or equal to ten times the blank value, therefore no qualifications were necessary. TETRA TECH Page 2 of 5 ------- DATA VALIDATION CHECKLIST - STAGE 2A EPA REGION 5 START CONTRACT 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 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-DW-E-061923 was 1.56 • EPD-UW-A-061923 was 1.47 • EPD-WA-01-061923 was 1.52 • EPD-WA-02-061923 was 1.46 • EPD-WA-03-061923 was 1.75 • EPD-WA-04-061923 was 1.55 • EPD-WA-05-061923 was 1.63 • EPD-WA-06-061923 was 1.48 • EPD-WA-11-061923 was 1.45 Re-extraction and reanalysis: Within Criteria Exceedance/Notes NA MDLs/RLs: Within Criteria Exceedance/Notes Y Per the case narrative, "The reporting limit for Ethanol was raised from 2.0 ppbv to 6.2 ppbv due to anomalous linearity in the Initial Calibration." Detections between the MDL and RL were reported and qualified as estimated (flagged J) by the laboratory. TETRA TECH Page 4 of 5 ------- 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 most samples. The known TICs were qualified as tentatively identified (flagged NJ). The unknown TICs were qualified as estimated (flagged J). 2-Ethyl-l-hexanol and butyl acrylate in all samples were reported as nondetect 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 following 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 quality control criteria. TETRA TECH Page 5 of 5 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VALJ EPD-DW-E-061923 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.8 U 1.4 5.8 UG/M3 5.8 U EPD-DW-E-061923 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.77 U 0.23 0.77 UG/M3 0.77 U EPD-DW-E-061923 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.94 U 0.11 0.94 UG/M3 0.94 U EPD-DW-E-061923 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.72 U 0.12 0.72 UG/M3 0.72 U EPD-DW-E-061923 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.77 U 0.15 0.77 UG/M3 0.77 U EPD-DW-E-061923 TO-15 106-99-0 1,3-BUTADIENE 0.34 U 0.034 0.34 UG/M3 0.34 U EPD-DW-E-061923 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.94 U 0.11 0.94 UG/M3 0.94 U EPD-DW-E-061923 TO-15 123-91-1 1,4-DIOXANE 0.16 J 0.089 0.56 UG/M3 0.16 J EPD-DW-E-061923 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.6 U 0.59 3.6 UG/M3 3.6 U EPD-DW-E-061923 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 2.2 J 0.35 2.3 UG/M3 2.2 J EPD-DW-E-061923 TO-15 591-78-6 2-HEXANONE 3.2 U 0.5 3.2 UG/M3 3.2 U EPD-DW-E-061923 TO-15 67-63-0 2-PRO PANOL 0.75 J 0.43 7.7 UG/M3 0.75 J EPD-DW-E-061923 TO-15 107-05-1 3-CHLOROPROPENE 2.4 U 0.48 2.4 UG/M3 2.4 U EPD-DW-E-061923 TO-15 622-96-8 4-ETHYLTOLUENE 0.22 J 0.15 0.77 UG/M3 0.22 J EPD-DW-E-061923 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.23 J 0.23 0.64 UG/M3 0.23 J EPD-DW-E-061923 TO-15 67-64-1 ACETONE 13 0.85 7.4 UG/M3 13 EPD-DW-E-061923 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.81 U 0.15 0.81 UG/M3 0.81 U EPD-DW-E-061923 TO-15 75-27-4 BROMODICHLO ROM ETHANE 1 U 0.16 1 UG/M3 1.0 U EPD-DW-E-061923 TO-15 75-25-2 BROMOFORM 1.6 U 0.45 1.6 UG/M3 1.6 U EPD-DW-E-061923 TO-15 74-83-9 BROMOMETHANE 30 U 0.87 30 UG/M3 30 U EPD-DW-E-061923 TO-15 75-15-0 CARBON DISULFIDE 2.4 U 0.7 2.4 UG/M3 2.4 U EPD-DW-E-061923 TO-15 108-90-7 CHLOROBENZENE 0.72 U 0.056 0.72 UG/M3 0.72 U EPD-DW-E-061923 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.71 U 0.14 0.71 UG/M3 0.71 U EPD-DW-E-061923 TO-15 98-82-8 CUMENE 0.77 U 0.097 0.77 UG/M3 0.77 U EPD-DW-E-061923 TO-15 110-82-7 CYCLOHEXANE 2.7 U 0.26 2.7 UG/M3 2.7 u EPD-DW-E-061923 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.23 1.3 UG/M3 1.3 u EPD-DW-E-061923 TO-15 64-17-5 ETHANOL 1.7 J 0.71 18 UG/M3 1.7 J EPD-DW-E-061923 TO-15 75-69-4 FREON 11 0.98 0.069 0.88 UG/M3 0.98 EPD-DW-E-061923 TO-15 76-13-1 FREON 113 0.46 J 0.2 1.2 UG/M3 0.46 J EPD-DW-E-061923 TO-15 142-82-5 HEPTANE 3.2 U 0.39 3.2 UG/M3 3.2 u EPD-DW-E-061923 TO-15 87-68-3 HEXACHLO RO BUTADIENE 8.3 U 0.83 8.3 UG/M3 8.3 u EPD-DW-E-061923 TO-15 110-54-3 HEXANE 2.7 U 0.43 2.7 UG/M3 2.7 u EPD-DW-E-061923 TO-15 75-09-2 METHYLENE CHLORIDE 0.71 J 0.62 1.1 UG/M3 0.71 J EPD-DW-E-061923 TO-15 103-65-1 PROPYLBENZENE 0.77 U 0.17 0.77 UG/M3 0.77 u EPD-DW-E-061923 TO-15 100-42-5 STYRENE 0.66 U 0.096 0.66 UG/M3 0.66 u Page 1 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_ _ Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-DW-E-061923 TO-15 109-99-9 TETRAHYDROFURAN 2.3 U 0.37 2.3 UG/M3 2.3 U EPD-DW-E-061923 TO-15 10061-02-6 TRANS-l,3-DICHLO ROPROPENE 0.71 U 0.17 0.71 UG/M3 0.71 U EPD-DW-E-061923 TO-15 78-79-5 1,3-BUTADIENE, 2-METHYL- 0.8 NJ PPBV 0.80 NJ EPD-DW-E-061923 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-DW-E-061923 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-DW-E-061923 TO-15 556-67-2 CYCLOTETRASILOXAN E, OCTAMETHYL- 1.7 NJ PPBV 1.7 NJ EPD-DW-E-061923 TO-15 NA UNKNOWN TIC 0.89 J PPBV 0.89 J EPD-DW-E-061923 TO-15 NA UNKNOWN TIC 1.1 J PPBV 1.1 J EPD-DW-E-061923 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.17 U 0.014 0.17 UG/M3 0.17 U EPD-DW-E-061923 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLO RO ETHANE 0.21 U 0.052 0.21 UG/M3 0.21 U EPD-DW-E-061923 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.17 U 0.02 0.17 UG/M3 0.17 U EPD-DW-E-061923 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.13 U 0.012 0.13 UG/M3 0.13 U EPD-DW-E-061923 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.062 U 0.016 0.062 UG/M3 0.062 U EPD-DW-E-061923 TO-15 SIM 106-93-4 1,2-DIBROMO ETHANE (EDB) 0.24 U 0.033 0.24 UG/M3 0.24 U EPD-DW-E-061923 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.043 J 0.015 0.13 UG/M3 0.13 U EPD-DW-E-061923 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.19 U 0.08 0.19 UG/M3 0.19 U EPD-DW-E-061923 TO-15 SIM 71-43-2 BENZENE 0.38 0.024 0.25 UG/M3 0.38 EPD-DW-E-061923 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.39 0.014 0.2 UG/M3 0.39 EPD-DW-E-061923 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.011 0.2 UG/M3 0.20 U EPD-DW-E-061923 TO-15 SIM 67-66-3 CHLOROFORM 0.085 J 0.016 0.15 UG/M3 0.085 J EPD-DW-E-061923 TO-15 SIM 74-87-3 CHLOROMETHANE 0.73 J 0.19 1.6 UG/M3 0.73 J EPD-DW-E-061923 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.016 0.12 UG/M3 0.12 U EPD-DW-E-061923 TO-15 SIM 100-41-4 ETHYL BENZENE 0.099 J 0.02 0.14 UG/M3 0.099 J EPD-DW-E-061923 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.024 0.22 UG/M3 0.10 J EPD-DW-E-061923 TO-15 SIM 75-71-8 FREON 12 1.9 0.016 0.38 UG/M3 1.9 EPD-DW-E-061923 TO-15 SIM 179601-23-1 M,P-XYLENE 0.4 0.026 0.27 UG/M3 0.40 EPD-DW-E-061923 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.56 U 0.01 0.56 UG/M3 0.56 U EPD-DW-E-061923 TO-15 SIM 91-20-3 NAPHTHALENE 0.16 J 0.12 0.41 UG/M3 0.41 U EPD-DW-E-061923 TO-15 SIM 95-47-6 O-XYLENE 0.15 0.023 0.14 UG/M3 0.15 J+ EPD-DW-E-061923 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.034 J 0.03 0.21 UG/M3 0.034 J EPD-DW-E-061923 TO-15 SIM 108-88-3 TOLUENE 0.65 0.021 0.29 UG/M3 0.65 EPD-DW-E-061923 TO-15 SIM 156-60-5 TRANS-l,2-DICHLO ROETHENE 0.62 U 0.0093 0.62 UG/M3 0.62 U EPD-DW-E-061923 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.17 U 0.027 0.17 UG/M3 0.17 U EPD-DW-E-061923 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.04 U 0.011 0.04 UG/M3 0.040 U EPD-UW-A-061923 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 1.3 5.4 UG/M3 5.4 U Page 2 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VALJ EPD-UW-A-061923 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.72 U 0.22 0.72 UG/M3 0.72 U EPD-UW-A-061923 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.88 U 0.1 0.88 UG/M3 0.88 U EPD-UW-A-061923 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.68 U 0.11 0.68 UG/M3 0.68 U EPD-UW-A-061923 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.72 U 0.14 0.72 UG/M3 0.72 U EPD-UW-A-061923 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.032 0.32 UG/M3 0.32 U EPD-UW-A-061923 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.88 U 0.1 0.88 UG/M3 0.88 U EPD-UW-A-061923 TO-15 123-91-1 1,4-DIOXANE 0.53 U 0.084 0.53 UG/M3 0.53 U EPD-UW-A-061923 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.4 U 0.55 3.4 UG/M3 3.4 U EPD-UW-A-061923 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.58 J 0.33 2.2 UG/M3 0.58 J EPD-UW-A-061923 TO-15 591-78-6 2-HEXANONE 3 U 0.47 3 UG/M3 3.0 U EPD-UW-A-061923 TO-15 67-63-0 2-PRO PANOL 7.2 U 0.41 7.2 UG/M3 7.2 U EPD-UW-A-061923 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.46 2.3 UG/M3 2.3 U EPD-UW-A-061923 TO-15 622-96-8 4-ETHYLTOLUENE 0.72 U 0.14 0.72 UG/M3 0.72 U EPD-UW-A-061923 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.6 U 0.22 0.6 UG/M3 0.60 U EPD-UW-A-061923 TO-15 67-64-1 ACETONE 7.9 0.8 7 UG/M3 7.9 EPD-UW-A-061923 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.76 U 0.14 0.76 UG/M3 0.76 U EPD-UW-A-061923 TO-15 75-27-4 BROMODICHLO ROM ETHANE 0.98 U 0.15 0.98 UG/M3 0.98 U EPD-UW-A-061923 TO-15 75-25-2 BROMOFORM 1.5 U 0.42 1.5 UG/M3 1.5 U EPD-UW-A-061923 TO-15 74-83-9 BROMOMETHANE 28 U 0.82 28 UG/M3 28 U EPD-UW-A-061923 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.66 2.3 UG/M3 2.3 U EPD-UW-A-061923 TO-15 108-90-7 CHLOROBENZENE 0.68 U 0.053 0.68 UG/M3 0.68 u EPD-UW-A-061923 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.67 U 0.13 0.67 UG/M3 0.67 u EPD-UW-A-061923 TO-15 98-82-8 CUMENE 0.72 U 0.091 0.72 UG/M3 0.72 u EPD-UW-A-061923 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.24 2.5 UG/M3 2.5 u EPD-UW-A-061923 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.22 1.2 UG/M3 1.2 u EPD-UW-A-061923 TO-15 64-17-5 ETHANOL 0.94 J 0.67 17 UG/M3 0.94 J EPD-UW-A-061923 TO-15 75-69-4 FREON 11 0.98 0.065 0.82 UG/M3 0.98 EPD-UW-A-061923 TO-15 76-13-1 FREON 113 0.38 J 0.19 1.1 UG/M3 0.38 J EPD-UW-A-061923 TO-15 142-82-5 HEPTANE 3 U 0.37 3 UG/M3 3.0 u EPD-UW-A-061923 TO-15 87-68-3 HEXACHLO RO BUTADIENE 7.8 U 0.78 7.8 UG/M3 7.8 u EPD-UW-A-061923 TO-15 110-54-3 HEXANE 2.6 U 0.4 2.6 UG/M3 2.6 u EPD-UW-A-061923 TO-15 75-09-2 METHYLENE CHLORIDE 0.67 J 0.58 1 UG/M3 0.67 J EPD-UW-A-061923 TO-15 103-65-1 PROPYLBENZENE 0.72 U 0.16 0.72 UG/M3 0.72 u EPD-UW-A-061923 TO-15 100-42-5 STYRENE 0.63 u 0.091 0.63 UG/M3 0.63 u EPD-UW-A-061923 TO-15 109-99-9 TETRAHYDROFURAN 2.2 u 0.35 2.2 UG/M3 2.2 u Page 3 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_ _ Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-UW-A-061923 TO-15 10061-02-6 TRANS-l,3-DICHLO ROPROPENE 0.67 U 0.16 0.67 UG/M3 0.67 U EPD-UW-A-061923 TO-15 78-79-5 1,3-BUTADIENE, 2-METHYL- 1.1 NJ PPBV 1.1 NJ EPD-UW-A-061923 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 u, NF EPD-UW-A-061923 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 u, NF EPD-UW-A-061923 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.014 0.16 UG/M3 0.16 U EPD-UW-A-061923 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLO RO ETHANE 0.2 U 0.049 0.2 UG/M3 0.20 U EPD-UW-A-061923 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.018 0.16 UG/M3 0.12 U EPD-UW-A-061923 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.012 0.12 UG/M3 0.12 U EPD-UW-A-061923 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.058 U 0.015 0.058 UG/M3 0.058 U EPD-UW-A-061923 TO-15 SIM 106-93-4 1,2-DIBROMO ETHANE (EDB) 0.22 U 0.031 0.22 UG/M3 0.22 U EPD-UW-A-061923 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.044 J 0.014 0.12 UG/M3 0.12 U EPD-UW-A-061923 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.076 0.18 UG/M3 0.18 U EPD-UW-A-061923 TO-15 SIM 71-43-2 BENZENE 0.33 0.023 0.23 UG/M3 0.33 EPD-UW-A-061923 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.39 0.013 0.18 UG/M3 0.39 EPD-UW-A-061923 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.01 0.19 UG/M3 0.19 U EPD-UW-A-061923 TO-15 SIM 67-66-3 CHLOROFORM 0.085 J 0.015 0.14 UG/M3 0.085 J EPD-UW-A-061923 TO-15 SIM 74-87-3 CHLOROMETHANE 0.74 J 0.18 1.5 UG/M3 0.74 J EPD-UW-A-061923 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.015 0.12 UG/M3 0.12 U EPD-UW-A-061923 TO-15 SIM 100-41-4 ETHYL BENZENE 0.062 J 0.019 0.13 UG/M3 0.062 J EPD-UW-A-061923 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.022 0.2 UG/M3 0.10 J EPD-UW-A-061923 TO-15 SIM 75-71-8 FREON 12 1.9 0.015 0.36 UG/M3 1.9 EPD-UW-A-061923 TO-15 SIM 179601-23-1 M,P-XYLENE 0.22 J 0.025 0.26 UG/M3 0.22 J EPD-UW-A-061923 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.53 U 0.0098 0.53 UG/M3 0.53 U EPD-UW-A-061923 TO-15 SIM 91-20-3 NAPHTHALENE 0.22 J 0.11 0.38 UG/M3 0.38 U EPD-UW-A-061923 TO-15 SIM 95-47-6 O-XYLENE 0.087 J 0.022 0.13 UG/M3 0.13 U EPD-UW-A-061923 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.2 U 0.028 0.2 UG/M3 0.20 U EPD-UW-A-061923 TO-15 SIM 108-88-3 TOLUENE 0.4 0.02 0.28 UG/M3 0.40 EPD-UW-A-061923 TO-15 SIM 156-60-5 TRANS-l,2-DICHLO ROETHENE 0.15 J 0.0087 0.58 UG/M3 0.15 J EPD-UW-A-061923 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.026 0.16 UG/M3 0.16 U EPD-UW-A-061923 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.038 U 0.01 0.038 UG/M3 0.038 U EPD-WA-01-061923 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.6 U 1.4 5.6 UG/M3 5.6 u EPD-WA-01-061923 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.23 J 0.22 0.75 UG/M3 0.23 J EPD-WA-01-061923 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.91 U 0.11 0.91 UG/M3 0.91 u EPD-WA-01-061923 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.7 U 0.12 0.7 UG/M3 0.70 U EPD-WA-01-061923 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.75 U 0.15 0.75 UG/M3 0.75 u Page 4 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_ _ Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-01-061923 TO-15 106-99-0 1,3-BUTADIENE 0.34 U 0.033 0.34 UG/M3 0.34 U EPD-WA-01-061923 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.91 U 0.1 0.91 UG/M3 0.91 U EPD-WA-01-061923 TO-15 123-91-1 1,4-DIOXANE 0.55 U 0.087 0.55 UG/M3 0.55 U EPD-WA-01-061923 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.6 U 0.57 3.6 UG/M3 3.6 U EPD-WA-01-061923 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.75 J 0.34 2.2 UG/M3 0.75 J EPD-WA-01-061923 TO-15 591-78-6 2-HEXANONE 3.1 U 0.48 3.1 UG/M3 3.1 U EPD-WA-01-061923 TO-15 67-63-0 2-PRO PANOL 7.5 U 0.42 7.5 UG/M3 7.5 U EPD-WA-01-061923 TO-15 107-05-1 3-CHLOROPROPENE 2.4 U 0.47 2.4 UG/M3 2.4 U EPD-WA-01-061923 TO-15 622-96-8 4-ETHYLTOLUENE 0.75 U 0.14 0.75 UG/M3 0.75 U EPD-WA-01-061923 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.62 U 0.22 0.62 UG/M3 0.62 U EPD-WA-01-061923 TO-15 67-64-1 ACETONE 8.4 0.83 7.2 UG/M3 8.4 EPD-WA-01-061923 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.79 U 0.14 0.79 UG/M3 0.79 U EPD-WA-01-061923 TO-15 75-27-4 BROMODICHLO ROM ETHANE 1 U 0.16 1 UG/M3 1.0 U EPD-WA-01-061923 TO-15 75-25-2 BROMOFORM 1.6 U 0.44 1.6 UG/M3 1.6 U EPD-WA-01-061923 TO-15 74-83-9 BROMOMETHANE 30 U 0.85 30 UG/M3 30 U EPD-WA-01-061923 TO-15 75-15-0 CARBON DISULFIDE 2.4 U 0.68 2.4 UG/M3 2.4 U EPD-WA-01-061923 TO-15 108-90-7 CHLOROBENZENE 0.7 U 0.054 0.7 UG/M3 0.70 U EPD-WA-01-061923 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.69 U 0.13 0.69 UG/M3 0.69 U EPD-WA-01-061923 TO-15 98-82-8 CUMENE 0.75 U 0.094 0.75 UG/M3 0.75 U EPD-WA-01-061923 TO-15 110-82-7 CYCLOHEXANE 2.6 U 0.25 2.6 UG/M3 2.6 U EPD-WA-01-061923 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.23 1.3 UG/M3 1.3 U EPD-WA-01-061923 TO-15 64-17-5 ETHANOL 1.3 J 0.69 18 UG/M3 1.3 J EPD-WA-01-061923 TO-15 75-69-4 FREON 11 1 0.067 0.85 UG/M3 1.0 EPD-WA-01-061923 TO-15 76-13-1 FREON 113 0.45 J 0.2 1.2 UG/M3 0.45 J EPD-WA-01-061923 TO-15 142-82-5 HEPTANE 3.1 U 0.38 3.1 UG/M3 3.1 U EPD-WA-01-061923 TO-15 87-68-3 HEXACHLO RO BUTADIENE 8.1 U 0.81 8.1 UG/M3 8.1 U EPD-WA-01-061923 TO-15 110-54-3 HEXANE 2.7 U 0.42 2.7 UG/M3 2.7 U EPD-WA-01-061923 TO-15 75-09-2 METHYLENE CHLORIDE 0.74 J 0.6 1 UG/M3 0.74 J EPD-WA-01-061923 TO-15 103-65-1 PROPYLBENZENE 0.75 U 0.17 0.75 UG/M3 0.75 U EPD-WA-01-061923 TO-15 100-42-5 STYRENE 0.65 U 0.094 0.65 UG/M3 0.65 U EPD-WA-01-061923 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.36 2.2 UG/M3 2.2 U EPD-WA-01-061923 TO-15 10061-02-6 TRANS-l,3-DICHLO ROPROPENE 0.69 U 0.17 0.69 UG/M3 0.69 U EPD-WA-01-061923 TO-15 78-79-5 1,3-BUTADIENE, 2-METHYL- 0.9 NJ PPBV 0.90 NJ EPD-WA-01-061923 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 u, NF EPD-WA-01-061923 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 u, NF Page 5 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-01-061923 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.014 0.16 UG/M3 0.16 U EPD-WA-01-061923 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLO RO ETHANE 0.21 U 0.051 0.21 UG/M3 0.21 U EPD-WA-01-061923 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.019 0.16 UG/M3 0.16 U EPD-WA-01-061923 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.012 0.12 UG/M3 0.12 U EPD-WA-01-061923 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.06 U 0.016 0.06 UG/M3 0.060 U EPD-WA-01-061923 TO-15 SIM 106-93-4 1,2-DIBROMO ETHANE (EDB) 0.23 U 0.032 0.23 UG/M3 0.23 U EPD-WA-01-061923 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.043 J 0.014 0.12 UG/M3 0.12 U EPD-WA-01-061923 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.078 0.18 UG/M3 0.18 U EPD-WA-01-061923 TO-15 SIM 71-43-2 BENZENE 0.34 0.024 0.24 UG/M3 0.34 EPD-WA-01-061923 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.39 0.014 0.19 UG/M3 0.39 EPD-WA-01-061923 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.011 0.2 UG/M3 0.20 U EPD-WA-01-061923 TO-15 SIM 67-66-3 CHLOROFORM 0.081 J 0.016 0.15 UG/M3 0.081 J EPD-WA-01-061923 TO-15 SIM 74-87-3 CHLOROMETHANE 0.72 J 0.19 1.6 UG/M3 0.72 J EPD-WA-01-061923 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.016 0.12 UG/M3 0.12 U EPD-WA-01-061923 TO-15 SIM 100-41-4 ETHYL BENZENE 0.092 J 0.02 0.13 UG/M3 0.092 J EPD-WA-01-061923 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.023 0.21 UG/M3 0.10 J EPD-WA-01-061923 TO-15 SIM 75-71-8 FREON 12 1.9 0.015 0.38 UG/M3 1.9 EPD-WA-01-061923 TO-15 SIM 179601-23-1 M,P-XYLENE 0.37 0.026 0.26 UG/M3 0.37 EPD-WA-01-061923 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.55 U 0.01 0.55 UG/M3 0.55 U EPD-WA-01-061923 TO-15 SIM 91-20-3 NAPHTHALENE 0.14 J 0.12 0.4 UG/M3 0.40 U EPD-WA-01-061923 TO-15 SIM 95-47-6 O-XYLENE 0.18 0.022 0.13 UG/M3 0.18 EPD-WA-01-061923 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.052 J 0.029 0.21 UG/M3 0.052 J EPD-WA-01-061923 TO-15 SIM 108-88-3 TOLUENE 0.62 0.02 0.29 UG/M3 0.62 EPD-WA-01-061923 TO-15 SIM 156-60-5 TRANS-l,2-DICHLO ROETHENE 0.6 U 0.009 0.6 UG/M3 0.60 U EPD-WA-01-061923 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.026 0.16 UG/M3 0.16 U EPD-WA-01-061923 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.017 J 0.011 0.039 UG/M3 0.017 J EPD-WA-02-061923 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 1.3 5.4 UG/M3 5.4 U EPD-WA-02-061923 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.26 J 0.22 0.72 UG/M3 0.26 J EPD-WA-02-061923 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.88 U 0.1 0.88 UG/M3 0.88 U EPD-WA-02-061923 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.67 U 0.11 0.67 UG/M3 0.67 U EPD-WA-02-061923 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.72 U 0.14 0.72 UG/M3 0.72 U EPD-WA-02-061923 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.031 0.32 UG/M3 0.32 U EPD-WA-02-061923 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.88 U 0.099 0.88 UG/M3 0.88 U EPD-WA-02-061923 TO-15 123-91-1 1,4-DIOXANE 0.53 U 0.084 0.53 UG/M3 0.53 U EPD-WA-02-061923 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.4 U 0.55 3.4 UG/M3 3.4 U Page 6 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_ _ Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-02-061923 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.8 J 0.33 2.2 UG/M3 1.8 J EPD-WA-02-061923 TO-15 591-78-6 2-HEXANONE 3 U 0.46 3 UG/M3 3.0 U EPD-WA-02-061923 TO-15 67-63-0 2-PRO PANOL 1.8 J 0.4 7.2 UG/M3 1.8 J EPD-WA-02-061923 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.45 2.3 UG/M3 2.3 U EPD-WA-02-061923 TO-15 622-96-8 4-ETHYLTOLUENE 0.72 U 0.14 0.72 UG/M3 0.72 U EPD-WA-02-061923 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.6 U 0.22 0.6 UG/M3 0.60 U EPD-WA-02-061923 TO-15 67-64-1 ACETONE 19 0.8 6.9 UG/M3 19 EPD-WA-02-061923 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.76 U 0.14 0.76 UG/M3 0.76 U EPD-WA-02-061923 TO-15 75-27-4 BROMODICHLO ROM ETHANE 0.98 U 0.15 0.98 UG/M3 0.98 U EPD-WA-02-061923 TO-15 75-25-2 BROMOFORM 1.5 U 0.42 1.5 UG/M3 1.5 U EPD-WA-02-061923 TO-15 74-83-9 BROMOMETHANE 28 U 0.82 28 UG/M3 28 U EPD-WA-02-061923 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.65 2.3 UG/M3 2.3 U EPD-WA-02-061923 TO-15 108-90-7 CHLOROBENZENE 0.67 U 0.052 0.67 UG/M3 0.67 U EPD-WA-02-061923 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.66 U 0.13 0.66 UG/M3 0.66 U EPD-WA-02-061923 TO-15 98-82-8 CUMENE 0.72 U 0.091 0.72 UG/M3 0.72 U EPD-WA-02-061923 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.24 2.5 UG/M3 2.5 U EPD-WA-02-061923 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.22 1.2 UG/M3 1.2 U EPD-WA-02-061923 TO-15 64-17-5 ETHANOL 1.9 J 0.67 17 UG/M3 1.9 J EPD-WA-02-061923 TO-15 75-69-4 FREON 11 0.93 0.065 0.82 UG/M3 0.93 EPD-WA-02-061923 TO-15 76-13-1 FREON 113 0.44 J 0.19 1.1 UG/M3 0.44 J EPD-WA-02-061923 TO-15 142-82-5 HEPTANE 3 U 0.36 3 UG/M3 3.0 U EPD-WA-02-061923 TO-15 87-68-3 HEXACHLO RO BUTADIENE 7.8 U 0.78 7.8 UG/M3 7.8 U EPD-WA-02-061923 TO-15 110-54-3 HEXANE 0.4 J 0.4 2.6 UG/M3 0.40 J EPD-WA-02-061923 TO-15 75-09-2 METHYLENE CHLORIDE 0.71 J 0.58 1 UG/M3 0.71 J EPD-WA-02-061923 TO-15 103-65-1 PROPYLBENZENE 0.72 U 0.16 0.72 UG/M3 0.72 U EPD-WA-02-061923 TO-15 100-42-5 STYRENE 0.62 U 0.09 0.62 UG/M3 0.62 U EPD-WA-02-061923 TO-15 109-99-9 TETRAHYDROFURAN 2.2 U 0.35 2.2 UG/M3 2.2 U EPD-WA-02-061923 TO-15 10061-02-6 TRANS-l,3-DICHLO ROPROPENE 0.66 U 0.16 0.66 UG/M3 0.66 U EPD-WA-02-061923 TO-15 78-79-5 1,3-BUTADIENE, 2-METHYL- 0.84 NJ PPBV 0.84 NJ EPD-WA-02-061923 TO-15 872-05-9 1-DECENE 1.2 NJ PPBV 1.2 NJ EPD-WA-02-061923 TO-15 693-54-9 2-DECANONE 0.94 NJ PPBV 0.94 NJ EPD-WA-02-061923 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-02-061923 TO-15 123-72-8 BUTANAL 0.82 NJ PPBV 0.82 NJ EPD-WA-02-061923 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-WA-02-061923 TO-15 556-67-2 CYCLOTETRASILOXANE, OCTAMETHYL- 1 NJ PPBV 1.0 NJ Page 7 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-02-061923 TO-15 66-25-1 HEXANAL 1 NJ PPBV 1.0 NJ EPD-WA-02-061923 TO-15 124-19-6 NONANAL 3.5 NJ PPBV 3.5 NJ EPD-WA-02-061923 TO-15 124-13-0 OCTANAL 1.1 NJ PPBV 1.1 NJ EPD-WA-02-061923 TO-15 NA UNKNOWN TIC 0.84 J PPBV 0.84 J EPD-WA-02-061923 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.013 0.16 UG/M3 0.16 U EPD-WA-02-061923 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLO RO ETHANE 0.2 U 0.049 0.2 UG/M3 0.20 U EPD-WA-02-061923 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.018 0.16 UG/M3 0.16 U EPD-WA-02-061923 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.012 0.12 UG/M3 0.12 U EPD-WA-02-061923 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.058 U 0.015 0.058 UG/M3 0.058 U EPD-WA-02-061923 TO-15 SIM 106-93-4 1,2-DIBROMO ETHANE (EDB) 0.22 U 0.031 0.22 UG/M3 0.22 U EPD-WA-02-061923 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.043 J 0.014 0.12 UG/M3 0.12 U EPD-WA-02-061923 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.075 0.18 UG/M3 0.18 U EPD-WA-02-061923 TO-15 SIM 71-43-2 BENZENE 0.46 0.023 0.23 UG/M3 0.46 EPD-WA-02-061923 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.39 0.013 0.18 UG/M3 0.39 EPD-WA-02-061923 TO-15 SIM 75-00-3 CHLOROETHANE 0.027 J 0.01 0.19 UG/M3 0.027 J EPD-WA-02-061923 TO-15 SIM 67-66-3 CHLOROFORM 0.083 J 0.015 0.14 UG/M3 0.083 J EPD-WA-02-061923 TO-15 SIM 74-87-3 CHLOROMETHANE 0.71 J 0.18 1.5 UG/M3 0.71 J EPD-WA-02-061923 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.015 0.12 UG/M3 0.12 U EPD-WA-02-061923 TO-15 SIM 100-41-4 ETHYL BENZENE 0.14 0.019 0.13 UG/M3 0.14 EPD-WA-02-061923 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.022 0.2 UG/M3 0.10 J EPD-WA-02-061923 TO-15 SIM 75-71-8 FREON 12 1.9 0.014 0.36 UG/M3 1.9 EPD-WA-02-061923 TO-15 SIM 179601-23-1 M,P-XYLENE 0.44 0.025 0.25 UG/M3 0.44 EPD-WA-02-061923 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.53 U 0.0098 0.53 UG/M3 0.53 U EPD-WA-02-061923 TO-15 SIM 91-20-3 NAPHTHALENE 0.22 J 0.11 0.38 UG/M3 0.38 U EPD-WA-02-061923 TO-15 SIM 95-47-6 O-XYLENE 0.17 0.022 0.13 UG/M3 0.17 J+ EPD-WA-02-061923 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.042 J 0.028 0.2 UG/M3 0.042 J EPD-WA-02-061923 TO-15 SIM 108-88-3 TOLUENE 0.89 0.02 0.28 UG/M3 0.89 EPD-WA-02-061923 TO-15 SIM 156-60-5 TRANS-l,2-DICHLO ROETHENE 0.73 0.0087 0.58 UG/M3 0.73 EPD-WA-02-061923 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.025 0.16 UG/M3 0.16 U EPD-WA-02-061923 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.017 J 0.01 0.037 UG/M3 0.017 J EPD-WA-03-061923 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 6.5 U 1.6 6.5 UG/M3 6.5 U EPD-WA-03-061923 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.3 J 0.26 0.86 UG/M3 0.30 J EPD-WA-03-061923 TO-15 95-50-1 1,2-DICHLOROBENZENE 1 U 0.12 1 UG/M3 1.0 U EPD-WA-03-061923 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.81 U 0.13 0.81 UG/M3 0.81 U EPD-WA-03-061923 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.86 U 0.17 0.86 UG/M3 0.86 U Page 8 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_ _ Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-03-061923 TO-15 106-99-0 1,3-BUTADIENE 0.044 J 0.038 0.39 UG/M3 0.044 J EPD-WA-03-061923 TO-15 541-73-1 1,3-DICHLOROBENZENE 1 U 0.12 1 UG/M3 1.0 U EPD-WA-03-061923 TO-15 123-91-1 1,4-DIOXANE 0.63 U 0.1 0.63 UG/M3 0.63 U EPD-WA-03-061923 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 4.1 U 0.66 4.1 UG/M3 4.1 U EPD-WA-03-061923 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.6 J 0.4 2.6 UG/M3 1.6 J EPD-WA-03-061923 TO-15 591-78-6 2-HEXANONE 3.6 U 0.56 3.6 UG/M3 3.6 U EPD-WA-03-061923 TO-15 67-63-0 2-PRO PANOL 8.6 U 0.48 8.6 UG/M3 8.6 U EPD-WA-03-061923 TO-15 107-05-1 3-CHLOROPROPENE 2.7 U 0.54 2.7 UG/M3 2.7 U EPD-WA-03-061923 TO-15 622-96-8 4-ETHYLTOLUENE 0.29 J 0.17 0.86 UG/M3 0.29 J EPD-WA-03-061923 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.72 U 0.26 0.72 UG/M3 0.72 U EPD-WA-03-061923 TO-15 67-64-1 ACETONE 8.1 J 0.95 8.3 UG/M3 8.1 J EPD-WA-03-061923 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.9 U 0.17 0.9 UG/M3 0.90 U EPD-WA-03-061923 TO-15 75-27-4 BROMODICHLO ROM ETHANE 1.2 U 0.18 1.2 UG/M3 1.2 U EPD-WA-03-061923 TO-15 75-25-2 BROMOFORM 1.8 U 0.5 1.8 UG/M3 1.8 U EPD-WA-03-061923 TO-15 74-83-9 BROMOMETHANE 34 U 0.98 34 UG/M3 34 U EPD-WA-03-061923 TO-15 75-15-0 CARBON DISULFIDE 2.7 U 0.78 2.7 UG/M3 2.7 U EPD-WA-03-061923 TO-15 108-90-7 CHLOROBENZENE 0.8 U 0.063 0.8 UG/M3 0.80 U EPD-WA-03-061923 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.79 U 0.16 0.79 UG/M3 0.79 U EPD-WA-03-061923 TO-15 98-82-8 CUMENE 0.86 U 0.11 0.86 UG/M3 0.86 U EPD-WA-03-061923 TO-15 110-82-7 CYCLOHEXANE 3 U 0.29 3 UG/M3 3.0 U EPD-WA-03-061923 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.5 U 0.26 1.5 UG/M3 1.5 U EPD-WA-03-061923 TO-15 64-17-5 ETHANOL 2.9 J 0.8 20 UG/M3 2.9 J EPD-WA-03-061923 TO-15 75-69-4 FREON 11 0.79 J 0.078 0.98 UG/M3 0.79 J EPD-WA-03-061923 TO-15 76-13-1 FREON 113 0.46 J 0.23 1.3 UG/M3 0.46 J EPD-WA-03-061923 TO-15 142-82-5 HEPTANE 3.6 U 0.44 3.6 UG/M3 3.6 U EPD-WA-03-061923 TO-15 87-68-3 HEXACHLO RO BUTADIENE 9.3 U 0.93 9.3 UG/M3 9.3 U EPD-WA-03-061923 TO-15 110-54-3 HEXANE 3.1 U 0.48 3.1 UG/M3 3.1 U EPD-WA-03-061923 TO-15 75-09-2 METHYLENE CHLORIDE 0.7 J 0.69 1.2 UG/M3 0.70 J EPD-WA-03-061923 TO-15 103-65-1 PROPYLBENZENE 0.86 U 0.19 0.86 UG/M3 0.86 U EPD-WA-03-061923 TO-15 100-42-5 STYRENE 0.74 U 0.11 0.74 UG/M3 0.74 U EPD-WA-03-061923 TO-15 109-99-9 TETRAHYDROFURAN 2.6 U 0.42 2.6 UG/M3 2.6 U EPD-WA-03-061923 TO-15 10061-02-6 TRANS-l,3-DICHLO ROPROPENE 0.79 U 0.2 0.79 UG/M3 0.79 U EPD-WA-03-061923 TO-15 78-79-5 1,3-BUTADIENE, 2-METHYL- 1.1 NJ PPBV 1.1 NJ EPD-WA-03-061923 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 u, NF EPD-WA-03-061923 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 u, NF Page 9 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-03-061923 TO-15 556-67-2 CYCLOTETRASILOXAN E, OCTAMETHYL- 2.8 NJ PPBV 2.8 NJ EPD-WA-03-061923 TO-15 541-05-9 CYCLOTRISI LOXAN E, HEXAMETHYL- 2.1 NJ PPBV 2.1 NJ EPD-WA-03-061923 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.19 U 0.016 0.19 UG/M3 0.19 U EPD-WA-03-061923 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLO RO ETHANE 0.24 U 0.058 0.24 UG/M3 0.24 U EPD-WA-03-061923 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.19 U 0.022 0.19 UG/M3 0.19 U EPD-WA-03-061923 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.14 U 0.014 0.14 UG/M3 0.14 U EPD-WA-03-061923 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.069 U 0.018 0.069 UG/M3 0.069 U EPD-WA-03-061923 TO-15 SIM 106-93-4 1,2-DIBROMO ETHANE (EDB) 0.27 U 0.037 0.27 UG/M3 0.27 U EPD-WA-03-061923 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.042 J 0.016 0.14 UG/M3 0.14 U EPD-WA-03-061923 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.21 U 0.09 0.21 UG/M3 0.21 U EPD-WA-03-061923 TO-15 SIM 71-43-2 BENZENE 0.64 0.027 0.28 UG/M3 0.64 EPD-WA-03-061923 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.39 0.016 0.22 UG/M3 0.39 EPD-WA-03-061923 TO-15 SIM 75-00-3 CHLOROETHANE 0.23 U 0.012 0.23 UG/M3 0.23 U EPD-WA-03-061923 TO-15 SIM 67-66-3 CHLOROFORM 0.09 J 0.018 0.17 UG/M3 0.090 J EPD-WA-03-061923 TO-15 SIM 74-87-3 CHLOROMETHANE 0.76 J 0.22 1.8 UG/M3 0.76 J EPD-WA-03-061923 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.14 U 0.018 0.14 UG/M3 0.14 U EPD-WA-03-061923 TO-15 SIM 100-41-4 ETHYL BENZENE 0.14 J 0.023 0.15 UG/M3 0.14 J EPD-WA-03-061923 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.026 0.24 UG/M3 0.10 J EPD-WA-03-061923 TO-15 SIM 75-71-8 FREON 12 1.9 0.017 0.43 UG/M3 1.9 EPD-WA-03-061923 TO-15 SIM 179601-23-1 M,P-XYLENE 0.54 0.03 0.3 UG/M3 0.54 EPD-WA-03-061923 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.63 U 0.012 0.63 UG/M3 0.63 U EPD-WA-03-061923 TO-15 SIM 91-20-3 NAPHTHALENE 0.43 J 0.13 0.46 UG/M3 0.46 U EPD-WA-03-061923 TO-15 SIM 95-47-6 O-XYLENE 0.26 0.026 0.15 UG/M3 0.26 EPD-WA-03-061923 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.034 J 0.034 0.24 UG/M3 0.034 J EPD-WA-03-061923 TO-15 SIM 108-88-3 TOLUENE 0.9 0.023 0.33 UG/M3 0.90 EPD-WA-03-061923 TO-15 SIM 156-60-5 TRANS-l,2-DICHLO ROETHENE 0.69 U 0.01 0.69 UG/M3 0.69 U EPD-WA-03-061923 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.19 U 0.03 0.19 UG/M3 0.19 U EPD-WA-03-061923 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.024 J 0.012 0.045 UG/M3 0.024 J EPD-WA-04-061923 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.8 U 1.4 5.8 UG/M3 5.8 U EPD-WA-04-061923 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.76 U 0.23 0.76 UG/M3 0.76 U EPD-WA-04-061923 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.93 U 0.11 0.93 UG/M3 0.93 U EPD-WA-04-061923 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.72 U 0.12 0.72 UG/M3 0.72 U EPD-WA-04-061923 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.76 U 0.15 0.76 UG/M3 0.76 U EPD-WA-04-061923 TO-15 106-99-0 1,3-BUTADIENE 0.34 U 0.033 0.34 UG/M3 0.34 U EPD-WA-04-061923 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.93 U 0.1 0.93 UG/M3 0.93 U Page 10 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_ _ Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-061923 TO-15 123-91-1 1,4-DIOXANE 0.56 U 0.089 0.56 UG/M3 0.56 U EPD-WA-04-061923 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.6 U 0.58 3.6 UG/M3 3.6 U EPD-WA-04-061923 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.97 J 0.35 2.3 UG/M3 0.97 J EPD-WA-04-061923 TO-15 591-78-6 2-HEXANONE 3.2 U 0.49 3.2 UG/M3 3.2 U EPD-WA-04-061923 TO-15 67-63-0 2-PRO PANOL 3.3 J 0.43 7.6 UG/M3 3.3 J EPD-WA-04-061923 TO-15 107-05-1 3-CHLOROPROPENE 2.4 U 0.48 2.4 UG/M3 2.4 U EPD-WA-04-061923 TO-15 622-96-8 4-ETHYLTOLUENE 0.76 U 0.15 0.76 UG/M3 0.76 U EPD-WA-04-061923 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.63 U 0.23 0.63 UG/M3 0.63 U EPD-WA-04-061923 TO-15 67-64-1 ACETONE 12 0.84 7.4 UG/M3 12 EPD-WA-04-061923 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.8 U 0.15 0.8 UG/M3 0.80 U EPD-WA-04-061923 TO-15 75-27-4 BROMODICHLO ROM ETHANE 1 U 0.16 1 UG/M3 1.0 U EPD-WA-04-061923 TO-15 75-25-2 BROMOFORM 1.6 U 0.44 1.6 UG/M3 1.6 U EPD-WA-04-061923 TO-15 74-83-9 BROMOMETHANE 30 U 0.86 30 UG/M3 30 U EPD-WA-04-061923 TO-15 75-15-0 CARBON DISULFIDE 2 J 0.69 2.4 UG/M3 2.0 J EPD-WA-04-061923 TO-15 108-90-7 CHLOROBENZENE 0.71 U 0.056 0.71 UG/M3 0.71 U EPD-WA-04-061923 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.7 U 0.14 0.7 UG/M3 0.70 U EPD-WA-04-061923 TO-15 98-82-8 CUMENE 0.76 U 0.096 0.76 UG/M3 0.76 U EPD-WA-04-061923 TO-15 110-82-7 CYCLOHEXANE 2.7 U 0.26 2.7 UG/M3 2.7 U EPD-WA-04-061923 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.23 1.3 UG/M3 1.3 U EPD-WA-04-061923 TO-15 64-17-5 ETHANOL 1.3 J 0.71 18 UG/M3 1.3 J EPD-WA-04-061923 TO-15 75-69-4 FREON 11 0.93 0.069 0.87 UG/M3 0.93 EPD-WA-04-061923 TO-15 76-13-1 FREON 113 0.43 J 0.2 1.2 UG/M3 0.43 J EPD-WA-04-061923 TO-15 142-82-5 HEPTANE 3.2 U 0.39 3.2 UG/M3 3.2 U EPD-WA-04-061923 TO-15 87-68-3 HEXACHLO RO BUTADIENE 8.3 U 0.83 8.3 UG/M3 8.3 U EPD-WA-04-061923 TO-15 110-54-3 HEXANE 2.7 U 0.43 2.7 UG/M3 2.7 U EPD-WA-04-061923 TO-15 75-09-2 METHYLENE CHLORIDE 1.1 U 0.61 1.1 UG/M3 1.1 U EPD-WA-04-061923 TO-15 103-65-1 PROPYLBENZENE 0.76 U 0.17 0.76 UG/M3 0.76 U EPD-WA-04-061923 TO-15 100-42-5 STYRENE 0.66 U 0.096 0.66 UG/M3 0.66 U EPD-WA-04-061923 TO-15 109-99-9 TETRAHYDROFURAN 2 J 0.37 2.3 UG/M3 2.0 J EPD-WA-04-061923 TO-15 10061-02-6 TRANS-l,3-DICHLO ROPROPENE 0.7 U 0.17 0.7 UG/M3 0.70 U EPD-WA-04-061923 TO-15 78-79-5 1,3-BUTADIENE, 2-METHYL- 0.86 NJ PPBV 0.86 NJ EPD-WA-04-061923 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 U, NF EPD-WA-04-061923 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 U, NF EPD-WA-04-061923 TO-15 556-67-2 CYCLOTETRASILOXAN E, OCTAMETHYL- 2.5 NJ PPBV 2.5 NJ EPD-WA-04-061923 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.17 U 0.014 0.17 UG/M3 0.17 U Page 11 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-04-061923 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLO RO ETHANE 0.21 U 0.052 0.21 UG/M3 0.21 U EPD-WA-04-061923 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.17 U 0.02 0.17 UG/M3 0.17 U EPD-WA-04-061923 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.012 0.12 UG/M3 0.12 U EPD-WA-04-061923 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.061 U 0.016 0.061 UG/M3 0.061 U EPD-WA-04-061923 TO-15 SIM 106-93-4 1,2-DIBROMO ETHANE (EDB) 0.24 U 0.032 0.24 UG/M3 0.24 U EPD-WA-04-061923 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.043 J 0.014 0.12 UG/M3 0.12 U EPD-WA-04-061923 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.19 U 0.08 0.19 UG/M3 0.19 U EPD-WA-04-061923 TO-15 SIM 71-43-2 BENZENE 0.35 0.024 0.25 UG/M3 0.35 EPD-WA-04-061923 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.39 0.014 0.2 UG/M3 0.39 EPD-WA-04-061923 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.011 0.2 UG/M3 0.20 U EPD-WA-04-061923 TO-15 SIM 67-66-3 CHLOROFORM 0.082 J 0.016 0.15 UG/M3 0.082 J EPD-WA-04-061923 TO-15 SIM 74-87-3 CHLOROMETHANE 0.72 J 0.19 1.6 UG/M3 0.72 J EPD-WA-04-061923 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.016 0.12 UG/M3 0.12 U EPD-WA-04-061923 TO-15 SIM 100-41-4 ETHYL BENZENE 0.078 J 0.02 0.13 UG/M3 0.078 J EPD-WA-04-061923 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.024 0.22 UG/M3 0.10 J EPD-WA-04-061923 TO-15 SIM 75-71-8 FREON 12 1.9 0.015 0.38 UG/M3 1.9 EPD-WA-04-061923 TO-15 SIM 179601-23-1 M,P-XYLENE 0.31 0.026 0.27 UG/M3 0.31 EPD-WA-04-061923 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.56 U 0.01 0.56 UG/M3 0.56 U EPD-WA-04-061923 TO-15 SIM 91-20-3 NAPHTHALENE 0.41 U 0.12 0.41 UG/M3 0.41 U EPD-WA-04-061923 TO-15 SIM 95-47-6 O-XYLENE 0.12 J 0.023 0.13 UG/M3 0.13 U EPD-WA-04-061923 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.057 J 0.03 0.21 UG/M3 0.057 J EPD-WA-04-061923 TO-15 SIM 108-88-3 TOLUENE 0.55 0.021 0.29 UG/M3 0.55 EPD-WA-04-061923 TO-15 SIM 156-60-5 TRANS-l,2-DICHLO ROETHENE 0.074 J 0.0092 0.61 UG/M3 0.074 J EPD-WA-04-061923 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.048 J 0.027 0.17 UG/M3 0.048 J EPD-WA-04-061923 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.04 U 0.011 0.04 UG/M3 0.04 U EPD-WA-05-061923 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 6 U 1.5 6 UG/M3 6.0 U EPD-WA-05-061923 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.38 J 0.24 0.8 UG/M3 0.38 J EPD-WA-05-061923 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.98 U 0.12 0.98 UG/M3 0.98 U EPD-WA-05-061923 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.75 U 0.12 0.75 UG/M3 0.75 U EPD-WA-05-061923 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.8 U 0.16 0.8 UG/M3 0.80 U EPD-WA-05-061923 TO-15 106-99-0 1,3-BUTADIENE 0.36 U 0.035 0.36 UG/M3 0.36 U EPD-WA-05-061923 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.98 U 0.11 0.98 UG/M3 0.98 U EPD-WA-05-061923 TO-15 123-91-1 1,4-DIOXANE 0.59 U 0.093 0.59 UG/M3 0.59 U EPD-WA-05-061923 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 0.83 J 0.61 3.8 UG/M3 0.83 J EPD-WA-05-061923 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.88 J 0.37 2.4 UG/M3 0.88 J Page 12 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_ _ Result Lab_Qual MDL RL Units VAL_Result < > ,i— EPD-WA-05-061923 TO-15 591-78-6 2-HEXANONE 3.3 U 0.52 3.3 UG/M3 3.3 U EPD-WA-05-061923 TO-15 67-63-0 2-PRO PANOL 8 U 0.45 8 UG/M3 8.0 u EPD-WA-05-061923 TO-15 107-05-1 3-CHLOROPROPENE 2.6 U 0.51 2.6 UG/M3 2.6 u EPD-WA-05-061923 TO-15 622-96-8 4-ETHYLTOLUENE 0.39 J 0.15 0.8 UG/M3 0.39 J EPD-WA-05-061923 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.67 U 0.24 0.67 UG/M3 0.67 u EPD-WA-05-061923 TO-15 67-64-1 ACETONE 7.3 J 0.89 7.7 UG/M3 7.3 J EPD-WA-05-061923 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.84 U 0.16 0.84 UG/M3 0.84 u EPD-WA-05-061923 TO-15 75-27-4 BROMODICHLO ROM ETHANE 1.1 U 0.17 1.1 UG/M3 1.1 u EPD-WA-05-061923 TO-15 75-25-2 BROMOFORM 1.7 U 0.47 1.7 UG/M3 1.7 u EPD-WA-05-061923 TO-15 74-83-9 BROMOMETHANE 32 U 0.91 32 UG/M3 32 u EPD-WA-05-061923 TO-15 75-15-0 CARBON DISULFIDE 2.5 U 0.73 2.5 UG/M3 2.5 u EPD-WA-05-061923 TO-15 108-90-7 CHLOROBENZENE 0.75 U 0.058 0.75 UG/M3 0.75 u EPD-WA-05-061923 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.74 U 0.14 0.74 UG/M3 0.74 u EPD-WA-05-061923 TO-15 98-82-8 CUMENE 0.8 U 0.1 0.8 UG/M3 0.80 u EPD-WA-05-061923 TO-15 110-82-7 CYCLOHEXANE 2.8 U 0.27 2.8 UG/M3 2.8 u EPD-WA-05-061923 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.4 U 0.24 1.4 UG/M3 1.4 u EPD-WA-05-061923 TO-15 64-17-5 ETHANOL 3.2 J 0.74 19 UG/M3 3.2 J EPD-WA-05-061923 TO-15 75-69-4 FREON 11 1.1 0.072 0.92 UG/M3 1.1 EPD-WA-05-061923 TO-15 76-13-1 FREON 113 0.44 J 0.21 1.2 UG/M3 0.44 J EPD-WA-05-061923 TO-15 142-82-5 HEPTANE 3.3 U 0.41 3.3 UG/M3 3.3 u EPD-WA-05-061923 TO-15 87-68-3 HEXACHLO RO BUTADIENE 8.7 U 0.87 8.7 UG/M3 8.7 u EPD-WA-05-061923 TO-15 110-54-3 HEXANE 0.51 J 0.45 2.9 UG/M3 0.51 J EPD-WA-05-061923 TO-15 75-09-2 METHYLENE CHLORIDE 1.1 U 0.64 1.1 UG/M3 1.1 u EPD-WA-05-061923 TO-15 103-65-1 PROPYLBENZENE 0.8 U 0.18 0.8 UG/M3 0.80 u EPD-WA-05-061923 TO-15 100-42-5 STYRENE 0.69 U 0.1 0.69 UG/M3 0.69 u EPD-WA-05-061923 TO-15 109-99-9 TETRAHYDROFURAN 2.4 U 0.39 2.4 UG/M3 2.4 u EPD-WA-05-061923 TO-15 10061-02-6 TRANS-l,3-DICHLO ROPROPENE 0.74 U 0.18 0.74 UG/M3 0.74 u EPD-WA-05-061923 TO-15 78-79-5 1,3-BUTADIENE, 2-METHYL- 0.85 NJ PPBV 0.85 NJ EPD-WA-05-061923 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 u EPD-WA-05-061923 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 u EPD-WA-05-061923 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.18 U 0.015 0.18 UG/M3 0.18 u EPD-WA-05-061923 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLO RO ETHANE 0.22 U 0.054 0.22 UG/M3 0.22 u EPD-WA-05-061923 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.18 U 0.02 0.18 UG/M3 0.18 u EPD-WA-05-061923 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.13 U 0.013 0.13 UG/M3 0.13 u EPD-WA-05-061923 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.065 U 0.017 0.065 UG/M3 0.065 u Page 13 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-05-061923 TO-15 SIM 106-93-4 1,2-DIBROMO ETHANE (EDB) 0.25 U 0.034 0.25 UG/M3 0.25 U EPD-WA-05-061923 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.051 J 0.015 0.13 UG/M3 0.13 U EPD-WA-05-061923 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.2 U 0.084 0.2 UG/M3 0.20 U EPD-WA-05-061923 TO-15 SIM 71-43-2 BENZENE 0.47 0.026 0.26 UG/M3 0.47 EPD-WA-05-061923 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.39 0.015 0.2 UG/M3 0.39 EPD-WA-05-061923 TO-15 SIM 75-00-3 CHLOROETHANE 0.22 U 0.011 0.22 UG/M3 0.22 U EPD-WA-05-061923 TO-15 SIM 67-66-3 CHLOROFORM 0.12 J 0.017 0.16 UG/M3 0.12 J EPD-WA-05-061923 TO-15 SIM 74-87-3 CHLOROMETHANE 0.73 J 0.2 1.7 UG/M3 0.73 J EPD-WA-05-061923 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.13 U 0.017 0.13 UG/M3 0.13 U EPD-WA-05-061923 TO-15 SIM 100-41-4 ETHYL BENZENE 0.18 0.021 0.14 UG/M3 0.18 EPD-WA-05-061923 TO-15 SIM 76-14-2 FREON 114 0.1 J 0.025 0.23 UG/M3 0.10 J EPD-WA-05-061923 TO-15 SIM 75-71-8 FREON 12 1.9 0.016 0.4 UG/M3 1.9 EPD-WA-05-061923 TO-15 SIM 179601-23-1 M,P-XYLENE 0.83 0.028 0.28 UG/M3 0.83 EPD-WA-05-061923 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.59 U 0.011 0.59 UG/M3 0.59 U EPD-WA-05-061923 TO-15 SIM 91-20-3 NAPHTHALENE 0.37 J 0.12 0.43 UG/M3 0.43 U EPD-WA-05-061923 TO-15 SIM 95-47-6 O-XYLENE 0.31 0.024 0.14 UG/M3 0.31 EPD-WA-05-061923 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.041 J 0.032 0.22 UG/M3 0.041 J EPD-WA-05-061923 TO-15 SIM 108-88-3 TOLUENE 1.2 0.022 0.31 UG/M3 1.2 EPD-WA-05-061923 TO-15 SIM 156-60-5 TRANS-l,2-DICHLO ROETHENE 0.65 U 0.0097 0.65 UG/M3 0.65 U EPD-WA-05-061923 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.18 U 0.028 0.18 UG/M3 0.18 U EPD-WA-05-061923 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.042 U 0.012 0.042 UG/M3 0.042 U EPD-WA-06-061923 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.5 U 1.4 5.5 UG/M3 5.5 U EPD-WA-06-061923 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.3 J 0.22 0.73 UG/M3 0.30 J EPD-WA-06-061923 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.89 U 0.1 0.89 UG/M3 0.89 U EPD-WA-06-061923 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.68 U 0.11 0.68 UG/M3 0.68 U EPD-WA-06-061923 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.73 U 0.14 0.73 UG/M3 0.73 U EPD-WA-06-061923 TO-15 106-99-0 1,3-BUTADIENE 0.33 U 0.032 0.33 UG/M3 0.33 U EPD-WA-06-061923 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.89 U 0.1 0.89 UG/M3 0.89 U EPD-WA-06-061923 TO-15 123-91-1 1,4-DIOXANE 0.53 U 0.085 0.53 UG/M3 0.53 U EPD-WA-06-061923 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.4 U 0.56 3.4 UG/M3 3.4 U EPD-WA-06-061923 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 1.1 J 0.33 2.2 UG/M3 1.1 J EPD-WA-06-061923 TO-15 591-78-6 2-HEXANONE 3 U 0.47 3 UG/M3 3.0 U EPD-WA-06-061923 TO-15 67-63-0 2-PRO PANOL 7.3 U 0.41 7.3 UG/M3 7.3 U EPD-WA-06-061923 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.46 2.3 UG/M3 2.3 U EPD-WA-06-061923 TO-15 622-96-8 4-ETHYLTOLUENE 0.29 J 0.14 0.73 UG/M3 0.29 J Page 14 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_ _ Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-06-061923 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.61 U 0.22 0.61 UG/M3 0.61 U EPD-WA-06-061923 TO-15 67-64-1 ACETONE 8.1 0.81 7 UG/M3 8.1 EPD-WA-06-061923 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.77 U 0.14 0.77 UG/M3 0.77 U EPD-WA-06-061923 TO-15 75-27-4 BROMODICHLO ROM ETHANE 0.99 U 0.15 0.99 UG/M3 0.99 U EPD-WA-06-061923 TO-15 75-25-2 BROMOFORM 1.5 U 0.42 1.5 UG/M3 1.5 U EPD-WA-06-061923 TO-15 74-83-9 BROMOMETHANE 29 U 0.83 29 UG/M3 29 U EPD-WA-06-061923 TO-15 75-15-0 CARBON DISULFIDE 2.3 U 0.66 2.3 UG/M3 2.3 U EPD-WA-06-061923 TO-15 108-90-7 CHLOROBENZENE 0.68 U 0.053 0.68 UG/M3 0.68 U EPD-WA-06-061923 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.67 U 0.13 0.67 UG/M3 0.67 U EPD-WA-06-061923 TO-15 98-82-8 CUMENE 0.73 U 0.092 0.73 UG/M3 0.73 U EPD-WA-06-061923 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.25 2.5 UG/M3 2.5 U EPD-WA-06-061923 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.3 U 0.22 1.3 UG/M3 1.3 U EPD-WA-06-061923 TO-15 64-17-5 ETHANOL 4.6 J 0.68 17 UG/M3 4.6 J EPD-WA-06-061923 TO-15 75-69-4 FREON 11 1 0.066 0.83 UG/M3 1.0 EPD-WA-06-061923 TO-15 76-13-1 FREON 113 0.47 J 0.2 1.1 UG/M3 0.47 J EPD-WA-06-061923 TO-15 142-82-5 HEPTANE 3 U 0.37 3 UG/M3 3.0 U EPD-WA-06-061923 TO-15 87-68-3 HEXACHLO RO BUTADIENE 7.9 U 0.79 7.9 UG/M3 7.9 U EPD-WA-06-061923 TO-15 110-54-3 HEXANE 0.42 J 0.41 2.6 UG/M3 0.42 J EPD-WA-06-061923 TO-15 75-09-2 METHYLENE CHLORIDE 0.69 J 0.59 1 UG/M3 0.69 J EPD-WA-06-061923 TO-15 103-65-1 PROPYLBENZENE 0.73 U 0.16 0.73 UG/M3 0.73 U EPD-WA-06-061923 TO-15 100-42-5 STYRENE 0.63 U 0.091 0.63 UG/M3 0.63 U EPD-WA-06-061923 TO-15 109-99-9 TETRAHYDROFURAN 0.44 J 0.35 2.2 UG/M3 0.44 J EPD-WA-06-061923 TO-15 10061-02-6 TRANS-l,3-DICHLO ROPROPENE 0.67 U 0.16 0.67 UG/M3 0.67 U EPD-WA-06-061923 TO-15 78-79-5 1,3-BUTADIENE, 2-METHYL- 1 NJ PPBV 1.0 NJ EPD-WA-06-061923 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 u, NF EPD-WA-06-061923 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 u, NF EPD-WA-06-061923 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.014 0.16 UG/M3 0.16 U EPD-WA-06-061923 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLO RO ETHANE 0.2 U 0.049 0.2 UG/M3 0.20 U EPD-WA-06-061923 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.019 0.16 UG/M3 0.16 U EPD-WA-06-061923 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.012 0.12 UG/M3 0.12 U EPD-WA-06-061923 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.059 U 0.015 0.059 UG/M3 0.059 U EPD-WA-06-061923 TO-15 SIM 106-93-4 1,2-DIBROMO ETHANE (EDB) 0.23 U 0.031 0.23 UG/M3 0.23 u EPD-WA-06-061923 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.045 J 0.014 0.12 UG/M3 0.12 u EPD-WA-06-061923 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.18 U 0.076 0.18 UG/M3 0.18 u EPD-WA-06-061923 TO-15 SIM 71-43-2 BENZENE 0.43 0.023 0.24 UG/M3 0.43 Page 15 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-06-061923 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.38 0.013 0.19 UG/M3 0.38 EPD-WA-06-061923 TO-15 SIM 75-00-3 CHLOROETHANE 0.2 U 0.01 0.2 UG/M3 0.20 U EPD-WA-06-061923 TO-15 SIM 67-66-3 CHLOROFORM 0.088 J 0.015 0.14 UG/M3 0.088 J EPD-WA-06-061923 TO-15 SIM 74-87-3 CHLOROMETHANE 0.7 J 0.18 1.5 UG/M3 0.70 J EPD-WA-06-061923 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.12 U 0.015 0.12 UG/M3 0.12 U EPD-WA-06-061923 TO-15 SIM 100-41-4 ETHYL BENZENE 0.1 J 0.019 0.13 UG/M3 0.10 J EPD-WA-06-061923 TO-15 SIM 76-14-2 FREON 114 0.099 J 0.022 0.21 UG/M3 0.099 J EPD-WA-06-061923 TO-15 SIM 75-71-8 FREON 12 1.9 0.015 0.36 UG/M3 1.9 EPD-WA-06-061923 TO-15 SIM 179601-23-1 M,P-XYLENE 0.41 0.025 0.26 UG/M3 0.41 EPD-WA-06-061923 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.53 U 0.0099 0.53 UG/M3 0.53 U EPD-WA-06-061923 TO-15 SIM 91-20-3 NAPHTHALENE 0.68 0.11 0.39 UG/M3 0.68 J+ EPD-WA-06-061923 TO-15 SIM 95-47-6 O-XYLENE 0.16 0.022 0.13 UG/M3 0.16 J+ EPD-WA-06-061923 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.54 0.029 0.2 UG/M3 0.54 EPD-WA-06-061923 TO-15 SIM 108-88-3 TOLUENE 0.67 0.02 0.28 UG/M3 0.67 EPD-WA-06-061923 TO-15 SIM 156-60-5 TRANS-l,2-DICHLO ROETHENE 0.59 U 0.0088 0.59 UG/M3 0.59 U EPD-WA-06-061923 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.026 0.16 UG/M3 0.16 U EPD-WA-06-061923 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.027 J 0.01 0.038 UG/M3 0.027 J EPD-WA-11-061923 TO-15 120-82-1 1,2,4-TRICHLOROBENZENE 5.4 U 1.3 5.4 UG/M3 5.4 U EPD-WA-11-061923 TO-15 95-63-6 1,2,4-TRIMETHYLBENZENE 0.22 J 0.21 0.71 UG/M3 0.22 J EPD-WA-11-061923 TO-15 95-50-1 1,2-DICHLOROBENZENE 0.87 U 0.1 0.87 UG/M3 0.87 U EPD-WA-11-061923 TO-15 78-87-5 1,2-DICHLOROPROPANE 0.67 U 0.11 0.67 UG/M3 0.67 U EPD-WA-11-061923 TO-15 108-67-8 1,3,5-TRIMETHYLBENZENE 0.71 U 0.14 0.71 UG/M3 0.71 U EPD-WA-11-061923 TO-15 106-99-0 1,3-BUTADIENE 0.32 U 0.031 0.32 UG/M3 0.32 U EPD-WA-11-061923 TO-15 541-73-1 1,3-DICHLOROBENZENE 0.87 U 0.099 0.87 UG/M3 0.87 U EPD-WA-11-061923 TO-15 123-91-1 1,4-DIOXANE 0.52 U 0.083 0.52 UG/M3 0.52 U EPD-WA-11-061923 TO-15 540-84-1 2,2,4-TRIMETHYLPENTANE 3.4 U 0.55 3.4 UG/M3 3.4 U EPD-WA-11-061923 TO-15 78-93-3 2-BUTANONE (METHYL ETHYL KETONE) 0.86 J 0.33 2.1 UG/M3 0.86 J EPD-WA-11-061923 TO-15 591-78-6 2-HEXANONE 3 U 0.46 3 UG/M3 3.0 U EPD-WA-11-061923 TO-15 67-63-0 2-PRO PANOL 7.1 U 0.4 7.1 UG/M3 7.1 U EPD-WA-11-061923 TO-15 107-05-1 3-CHLOROPROPENE 2.3 U 0.45 2.3 UG/M3 2.3 U EPD-WA-11-061923 TO-15 622-96-8 4-ETHYLTOLUENE 0.21 J 0.14 0.71 UG/M3 0.21 J EPD-WA-11-061923 TO-15 108-10-1 4-METHYL-2-PENTANONE 0.59 U 0.21 0.59 UG/M3 0.59 u EPD-WA-11-061923 TO-15 67-64-1 ACETONE 9.2 0.79 6.9 UG/M3 9.2 EPD-WA-11-061923 TO-15 100-44-7 ALPHA-CHLOROTOLUENE 0.75 U 0.14 0.75 UG/M3 0.75 u EPD-WA-11-061923 TO-15 75-27-4 BROMODICHLO ROM ETHANE 0.97 U 0.15 0.97 UG/M3 0.97 u Page 16 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_ _ Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-11-061923 TO-15 75-25-2 BROMOFORM 1.5 U 0.42 1.5 UG/M3 1.5 U EPD-WA-11-061923 TO-15 74-83-9 BROMOMETHANE 28 U 0.81 28 UG/M3 28 U EPD-WA-11-061923 TO-15 75-15-0 CARBON DISULFIDE 2.2 U 0.65 2.2 UG/M3 2.2 U EPD-WA-11-061923 TO-15 108-90-7 CHLOROBENZENE 0.67 U 0.052 0.67 UG/M3 0.67 U EPD-WA-11-061923 TO-15 10061-01-5 CIS-l,3-DICHLOROPROPENE 0.66 U 0.13 0.66 UG/M3 0.66 U EPD-WA-11-061923 TO-15 98-82-8 CUMENE 0.71 U 0.09 0.71 UG/M3 0.71 U EPD-WA-11-061923 TO-15 110-82-7 CYCLOHEXANE 2.5 U 0.24 2.5 UG/M3 2.5 U EPD-WA-11-061923 TO-15 124-48-1 DIBROMOCHLOROMETHANE 1.2 U 0.22 1.2 UG/M3 1.2 U EPD-WA-11-061923 TO-15 64-17-5 ETHANOL 1.3 J 0.66 17 UG/M3 1.3 J EPD-WA-11-061923 TO-15 75-69-4 FREON 11 0.89 0.064 0.81 UG/M3 0.89 EPD-WA-11-061923 TO-15 76-13-1 FREON 113 0.46 J 0.19 1.1 UG/M3 0.46 J EPD-WA-11-061923 TO-15 142-82-5 HEPTANE 3 U 0.36 3 UG/M3 3.0 U EPD-WA-11-061923 TO-15 87-68-3 HEXACHLO RO BUTADIENE 7.7 U 0.77 7.7 UG/M3 7.7 U EPD-WA-11-061923 TO-15 110-54-3 HEXANE 0.42 J 0.4 2.6 UG/M3 0.42 J EPD-WA-11-061923 TO-15 75-09-2 METHYLENE CHLORIDE 0.65 J 0.57 1 UG/M3 0.65 J EPD-WA-11-061923 TO-15 103-65-1 PROPYLBENZENE 0.71 U 0.16 0.71 UG/M3 0.71 U EPD-WA-11-061923 TO-15 100-42-5 STYRENE 0.62 U 0.09 0.62 UG/M3 0.62 U EPD-WA-11-061923 TO-15 109-99-9 TETRAHYDROFURAN 2.1 U 0.35 2.1 UG/M3 2.1 U EPD-WA-11-061923 TO-15 10061-02-6 TRANS-l,3-DICHLO ROPROPENE 0.66 U 0.16 0.66 UG/M3 0.66 U EPD-WA-11-061923 TO-15 78-79-5 1,3-BUTADIENE, 2-METHYL- 0.93 NJ PPBV 0.93 NJ EPD-WA-11-061923 TO-15 104-76-7 2-ETHYL-l-HEXANOL 0 U PPBV 0 u, NF EPD-WA-11-061923 TO-15 141-32-2 BUTYL ACRYLATE (2-PROPENOIC ACID ,BUTY 0 U PPBV 0 u, NF EPD-WA-11-061923 TO-15 SIM 71-55-6 1,1,1-TRICHLOROETHANE 0.16 U 0.013 0.16 UG/M3 0.16 U EPD-WA-11-061923 TO-15 SIM 79-34-5 1,1,2,2-TETRACHLO RO ETHANE 0.2 U 0.048 0.2 UG/M3 0.20 U EPD-WA-11-061923 TO-15 SIM 79-00-5 1,1,2-TRICHLOROETHANE 0.16 U 0.018 0.16 UG/M3 0.16 U EPD-WA-11-061923 TO-15 SIM 75-34-3 1,1-DICHLOROETHANE 0.12 U 0.012 0.12 UG/M3 0.12 U EPD-WA-11-061923 TO-15 SIM 75-35-4 1,1-DICHLOROETHENE 0.057 U 0.015 0.057 UG/M3 0.057 U EPD-WA-11-061923 TO-15 SIM 106-93-4 1,2-DIBROMO ETHANE (EDB) 0.22 U 0.03 0.22 UG/M3 0.22 U EPD-WA-11-061923 TO-15 SIM 107-06-2 1,2-DICHLOROETHANE 0.043 J 0.014 0.12 UG/M3 0.12 u EPD-WA-11-061923 TO-15 SIM 106-46-7 1,4-DICHLOROBENZENE 0.17 U 0.075 0.17 UG/M3 0.17 u EPD-WA-11-061923 TO-15 SIM 71-43-2 BENZENE 0.34 0.023 0.23 UG/M3 0.34 EPD-WA-11-061923 TO-15 SIM 56-23-5 CARBON TETRACHLORIDE 0.38 0.013 0.18 UG/M3 0.38 EPD-WA-11-061923 TO-15 SIM 75-00-3 CHLOROETHANE 0.19 U 0.01 0.19 UG/M3 0.19 u EPD-WA-11-061923 TO-15 SIM 67-66-3 CHLOROFORM 0.079 J 0.015 0.14 UG/M3 0.079 J EPD-WA-11-061923 TO-15 SIM 74-87-3 CHLOROMETHANE 0.7 J 0.18 1.5 UG/M3 0.70 J Page 17 of 18 ------- E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY EUROFINS AIR TOXICS, LLC REPORT NO. 2306431 SampleJD Method CAS# Analyte Lab_Result Lab_Qual MDL RL Units VAL_Result VAL_Qual EPD-WA-11-061923 TO-15 SIM 156-59-2 CIS-l,2-DICHLOROETHENE 0.11 U 0.015 0.11 UG/M3 0.11 U EPD-WA-11-061923 TO-15 SIM 100-41-4 ETHYL BENZENE 0.09 J 0.019 0.12 UG/M3 0.09 J EPD-WA-11-061923 TO-15 SIM 76-14-2 FREON 114 0.097 J 0.022 0.2 UG/M3 0.097 J EPD-WA-11-061923 TO-15 SIM 75-71-8 FREON 12 1.9 0.014 0.36 UG/M3 1.9 EPD-WA-11-061923 TO-15 SIM 179601-23-1 M,P-XYLENE 0.36 0.025 0.25 UG/M3 0.36 EPD-WA-11-061923 TO-15 SIM 1634-04-4 METHYL TERT-BUTYL ETHER 0.52 U 0.0097 0.52 UG/M3 0.52 U EPD-WA-11-061923 TO-15 SIM 91-20-3 NAPHTHALENE 0.15 J 0.11 0.38 UG/M3 0.38 U EPD-WA-11-061923 TO-15 SIM 95-47-6 O-XYLENE 0.14 0.021 0.12 UG/M3 0.14 J+ EPD-WA-11-061923 TO-15 SIM 127-18-4 TETRACHLOROETHENE 0.05 J 0.028 0.2 UG/M3 0.05 J EPD-WA-11-061923 TO-15 SIM 108-88-3 TOLUENE 0.63 0.019 0.27 UG/M3 0.63 EPD-WA-11-061923 TO-15 SIM 156-60-5 TRANS-l,2-DICHLO ROETHENE 0.57 U 0.0086 0.57 UG/M3 0.57 U EPD-WA-11-061923 TO-15 SIM 79-01-6 TRICHLOROETHENE 0.16 U 0.025 0.16 UG/M3 0.16 U EPD-WA-11-061923 TO-15 SIM 75-01-4 VINYL CHLORIDE 0.015 J 0.01 0.037 UG/M3 0.015 J Page 18 of 18 ------- |