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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: Kirkwood Meadows Public Untility District WorkOrder: 2604713 <br /> Date Prepared: 04/10/2026 BatchID: 339404 <br /> Date Analyzed: 04/13/2026 Extraction Method: SW5030 B <br /> Instrument: GC57 Analytical Method: SW8015 B <br /> Matrix: Soil Unit: mg/Kg <br /> Project: Kirkwood WWTP Sample ID: MB/LCS/LCSD-339404 <br /> QC Summary Report for 8015B <br /> Analyte MB MDL RL SPK MB IS/SS MB IS/SS <br /> Result Val %REC Limits <br /> TPH(g)(C6-C12) ND 0.27 1.0 - - - <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.097 0.1 97 60-140 <br /> Analyte LCS LCSD SPK LCS LCSD LCS/LCSD RPD RPD <br /> Result Result Val %REC %REC Limits Limit <br /> TPH(g)(C6-C12) 2.0 2.0 2 99 101 60-140 2.03 20 <br /> Surrogate Recovery <br /> 2-Fluorotoluene 0.098 0.098 0.10 98 98 60-140 0.456 20 <br /> CA ELAP 1644.ORELAP(NELAP)4033 <br /> Page 28 of 36 <br />