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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e 11 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 /> Analytical Report <br /> Client: Kirkwood Meadows Public Untility District WorkOrder: 2604713 <br /> Date Received: 04/10/2026 9:20 Extraction Method: SW5030B <br /> Date Prepared: 04/10/2026 Analytical Method: SW8260D <br /> Project: Kirkwood WWTP Unit: mg/kg <br /> Volatile Organics <br /> Client ID Lab ID Matrix Date Collected Instrument FileID Batch ID <br /> Sludge Profile 2604713-001A Soil 04/09/2026 11:40 GC45 04142609.D 339405 <br /> Anal es Result RL DF Date Analyzed <br /> Surrogates REC % Limits DF <br /> Dibromofluoromethane 91 70-140 1 04/14/2026 12:55 <br /> Toluene-d8 104 70-140 1 04/14/2026 12:55 <br /> 4-13FB 90 70-140 1 04/14/2026 12:55 <br /> Benzene-d6 79 50-140 1 04/14/2026 12:55 <br /> Ethyl benzene-d10 80 50-140 1 04/14/2026 12:55 <br /> 1,2-DCB-d4 60 40-140 1 04/14/2026 12:55 <br /> Anal st s : EVA <br /> CA ELAP 1644•ORELAP(NELAP)4033 <br /> Page 6 of 36 <br />