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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e I l Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccampbell.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: American Integrated Services WorkOrder: 19071339 <br /> Date Prepared: 7/26/19-7/27/19 BatchID: 182486 <br /> Date Analyzed: 7/26/19-7/27/19 Extraction Method: SW5030B <br /> Instrument: GO Analytical Method: SW802113/801513m <br /> Matrix: Water Unit: gg/L <br /> Project: 39150; 14800 W. Schulte Rd. Tracy Sample ID: MB/LCS/LCSD-182486 <br /> QC Summary Report for SW8021B/8015Bm <br /> Analyte MB MDL RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> TPH(g)(C6-C12) ND 23 50 - <br /> MTBE ND 0.36 5.0 - <br /> Benzene ND 0.070 0.50 - - <br /> Toluene ND 0.14 0.50 - - <br /> Ethylbenzene ND 0.070 0.50 - <br /> m,p-Xylene ND 0.10 1.0 - <br /> o-Xylene ND 0.040 0.50 - - - <br /> Surrogate Recovery <br /> aaa-TFT 8.8 10 88 74-117 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> TPH(btex) 66 64 60 110 107 78-116 2.43 20 <br /> MTBE 9.8 9.5 10 98 95 72-122 2.62 20 <br /> Benzene 9.6 10 10 96 103 81-123 6.86 20 <br /> Toluene 10 11 10 102 107 83-129 4.69 20 <br /> Ethylbenzene 10 11 10 100 107 88-126 6.36 20 <br /> m,p-Xylene 20 22 20 101 108 80-120 5.88 20 <br /> o-Xylene 9.7 10 10 97 104 80-120 6.23 20 <br /> Surrogate Recovery <br /> aaa-TFT 9.0 9.1 10 90 91 74-117 1.07 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 17 of 22 <br />