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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 /> Analytical Report <br /> Client: Soil Control Lab WorkOrder: 2606A69 <br /> Date Received: 06/16/2026 9:26 Extraction Method: SW3050 B <br /> Date Prepared: 06/17/2026 Analytical Method: SW6020B <br /> Project: 6060161-01; Central Valley Compost(WM- Unit: mg/kg-dry <br /> Lathrop) <br /> Metals <br /> Client ID Lab ID Matrix Date Collected Instrument FileID Batch ID <br /> 21,22,23,24 2606A69-001A Solid 06/09/202611:30 ICP-MS4189SMPL.d 343989 <br /> Analytes Result RL DF Date Analyzed <br /> Arsenic ND 5.20 1 06/17/2026 22:29 <br /> Cadmium ND 5.20 1 06/17/2026 22:29 <br /> Chromium 25.9 5.20 1 06/17/2026 22:29 <br /> Copper 87.5 5.20 1 06/17/2026 22:29 <br /> Lead 38.8 5.20 1 06/17/2026 22:29 <br /> Mercury ND 0.520 1 06/17/2026 22:29 <br /> Molybdenum ND 5.20 1 06/17/2026 22:29 <br /> Nickel 23.5 5.20 1 06/17/2026 22:29 <br /> Selenium ND 5.20 1 06/17/2026 22:29 <br /> Zinc 258 52.0 1 06/17/2026 22:29 <br /> Surrogates REC % Limits DF <br /> Terbium 92 70-130 1 06/17/2026 22:29 <br /> Anal st s : AL Analytical Comments: a14 <br /> CA ELAP 1644 •ORELAP(NELAP)4033 <br /> Page 4 of 11 <br />