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® I,., y 1534 Willow Pass Road, Pittsburg CA 94565-1701 McCafnpbell Analytical Inc . Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 "When Quality Counts" hap://www.imc nq)bcll.com / E-mail: main r(�J nccampbell.com Quality Control Report Client: CVE Demolition WorkOrder: 1912750 Date Prepared: 12/12/19 BatchID: 190563 Date Analyzed: 12/13/19 - 12/14/19 Extraction Method: SW5030B Instrument: GC10, GC18 Analytical Method: SW8260B Matrix: Soil Unit: mg/kg Project: D17124; West Side Market Sample ID: MB/LCS/LCSD- 190563 QC Summary Report for SW8260B Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD Result Result Val %REC %REC Limits Limit Acetone 0.18 0.19 0.20 90 94 59-127 4.16 20 tert-Amyl methyl ether (TAME) 0.014 0.014 0.020 69 70 54-98 0.862 20 Benzene 0.015 0.016 0.020 77 79 71 -115 2.00 20 Bromobenzene 0.018 0.019 0.020 90 93 69-120 3.50 20 Bromochloromethane 0.017 0.018 0.020 86 88 63-117 1 .48 20 Bromodichloromethane 0.015 0.015 0.020 76 76 61-109 0 20 Bromoform 0.014 0.014 0.020 69 69 46-87 0 20 Bromomelhane 0.022 0.022 0.020 112 112 22-195 0 20 2-Butanone (MEK) 0.056 0.059 0.080 70 73 53-124 4.19 20 t-Butyl alcohol (TBA) 0.063 0.066 0.080 79 82 29-142 3.68 20 n-Butyl benzene 0.021 0.021 0.020 103 106 102-169 2.89 20 sec-Butyl benzene 0.020 0.021 0.020 101 104 100-166 2.76 20 tert-Butyl benzene 0.020 0.021 0.020 102 106 91-153 3.55 20 Carbon Disulfide 0.015 0.015 0.020 74 75 60-125 1 .54 20 Carbon Tetrachloride 0.018 0.018 0.020 88 90 69-124 1 .77 20 Chlorobenzene 0.018 0.018 0.020 92 92 73-116 0 20 Chloroethane 0.015 0.015 0.020 73 75 47-140 2,69 20 Chloroform 0.017 0.017 0.020 84 85 69-118 1 .48 20 Chloromethane 0.012 0.012 0.020 58 58 30-132 0 20 2-Chlorotoluene 0.019 0.020 0.020 95 98 75-147 3.07 20 4-Chlorotoluene 0.018 0.019 0.020 92 96 75-137 4.55 20 Dibromochloromethane 0.015 0.016 0.020 77 78 57-105 1 .37 20 1 ,2-Dibromo-3-chlompropane 0.0057 0.0070 0.010 57 70 36-103 20.21F2 20 1 ,2-Dibromoethane (EDB) 0.0079 0.0080 0.010 79 80 66-101 1 .60 20 Dibromomethane 0.015 0.015 0.020 73 75 61 -103 2.58 26 1 ,2-Dichlorobenzene 0.015 0.015 0.020 77 77 59-104 0 20 1 ,3-Dichlorobenzene 0.018 0.018 0.020 89 91 70-133 1 .54 20 1 ,4-Dichlorobenzene 0.017 0.018 0.020 87 89 68-123 2.21 20 Dichlorodifluoromethane 0.0046 0.0046 0.020 23 23 13-107 0 20 111-Dichloroethane 0.017 0.017 0.020 83 86 69-118 2.60 20 1 ,2-Dichioroethane (1 ,2-DCA) 0.017 0.017 0.020 85 86 59-112 0.259 20 1 ,1-Dichioroethane 0.016 0.016 0.020 79 80 69-126 1 .43 26 cis-1 ,2-Dichloroethene 0.016 0.017 0.020 81 85 69-116 4.09 20 trans-1 ,2-Dichloroethene 0.016 0.017 0.020 81 83 73-116 2.51 20 1 ,2-Dichloropropane 0.016 0.016 0.020 80 81 65-111 0.623 20 1 ,3-Dichloropropane 0.016 0.016 0.020 78 78 67-110 0 20 2,2-Dichloropropane 0.017 0.017 0.020 84 87 65-125 3.90 20 1 ,1 -Dichloropropene 0.016 0.017 0.020 81 83 70-123 1 .85 20 (Cont.) CA ELAP 1644 • NELAP 4033ORELAP Page 18 of 34