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l 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e I l Analytic al, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Countsrr http://www.mccampbell.com/E-mail:main@mccmVbell.com <br /> Quality Control Report <br /> Client: Ponder Environmental Services WorkOrder: 1906809 <br /> Date Prepared: 6/17/19 BatchID: 179740 <br /> Date Analyzed: 6/18/19 Extraction Method: SW3510C <br /> Instrument: GC6A Analytical Method: SW8015B <br /> Matrix: Water Unit: pg/L <br /> Project: 19-8007 Stockton Prover Sample ID: MB/LCS/LCSD-179740 <br /> QC Report for SW8015B w/out SG Clean-Up <br /> Analyte MB MDL RL SPK MB SS MB SS <br /> Result Val %REC Limits <br /> TPH-Diesel(C10-C23) ND 35 50 <br /> TPH-Motor Oil(C18-C36) ND 140 250 - - - <br /> Surrogate Recovery <br /> C9 650 625 104 68-127 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> TPH-Diesel(C10-C23) 1100 1100 1000 110 109 86-142 0.423 20 <br /> Surrogate Recovery <br /> C9 610 590 625 97 94 68-127 3.26 20 <br /> CA ELAP 1644•NELAP 4033ORELAP <br /> Page 7 of 11 <br />