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1534 Willow Pass Road Pittsburg,CA 94565-1701 <br /> _ McCampbell Analytical. Inc. Toll Free Telephone:(877)252-9262/Fee:(925)252-9269 <br /> "When Quality Counts" http://www.=campbeH.com/E-mail:main@mccampbell.com <br /> Quality Control Report <br /> Client: Terracon WorkOrder: 1712772 <br /> Date Prepared: 12/18/17 BatchlD: 150362 <br /> Date Analyzed: 12/18/17 Extraction Method: SW5030B <br /> Instrument: GC19 Analytical Method: SW8021B/8015Bm <br /> Matrix: Soil Unit: mg/Kg <br /> Project: R1177G18; Sample ID: MB/LCS-150362 <br /> 1712687-OOIAMS/MSD <br /> QC Summary Report for SW8021B/8015Bm <br /> Analyte MB RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> TPH(g)(C6-C12) ND 1.0 - - - <br /> MTBE ND 0.050 <br /> Benzene ND 0.0050 - - - <br /> Toluene ND 0.0050 - - - <br /> Ethylbenzene ND 0.0050 - - <br /> Xylenes ND 0.0050 - - - <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.09237 0.10 92 75-134 <br /> Analyte LCS LCSD SPK LCS LCSD LCSILCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> TPH(btex) 0.463 - 0.60 77,1`2 - 82-118 - - <br /> MTBE 0.0865 - 0.10 86 - 61-119 - - <br /> Benzene 0.106 - 0.10 106 - 77-128 - - <br /> Toluene 0.112 - 0.10 112 - 74-132 - - <br /> Ethylbenzene 0.110 - 0.10 110 - 84-127 - - <br /> Xylenes 0.331 - 0.30 110 - 86-129 - - <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.0977 - 0.10 98 - 75-134 - - <br /> Analyte MS MSD SPK SPKRef MS MSD MSIMSD RPD RPD <br /> Result Result Val Val %REC %REC Limits Limit <br /> TPH(btex) 0.452 0.456 0.60 ND 75 76 58-129 1.30 20 <br /> MTBE 0.0782 0.0757 0.10 ND 78 76 47-118 3.16 20 <br /> Benzene 0.104 0.0940 0.10 0.009726 94 84 55-129 9.64 20 <br /> Toluene 0.128 0.114 0.10 0.02782 100 87 56-130 11.2 20 <br /> Elhylbenzene 0.0971 0.0875 0.10 ND 97 87 63-129 10.4 20 <br /> Xylenes 0.300 0.275 0.30 0.01007 97 88 64131 8.85 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.0859 0.0795 0.10 86 79 62-126 7.75 20 <br /> (Cont) <br /> NELAP4033ORELAP <br /> Page 30 of 43 <br />