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Section: Quality ControlSection: Quality Control <br />This Page is to be Stamped <br /> <br />June 28, 2023 <br />Tracy Material Recovery & Solid Waste WS Lab No.: STK2337011 <br />Customer No.: 3016455 <br /> <br />Quality Control - Metals <br />Constituent Method Date/ID Type Units Conc.QC Data DQO Note <br />Metals <br />Arsenic 3050 06/20/2023:206762AC Blank mg/kg ND <0.5 <br />LCS mg/kg 40.00 89.7 %85-115 <br />MS mg/kg 40.00 84.6 %75-125 <br />(STK2337010-001)MSD mg/kg 40.00 79.1 %75-125 <br />MSRPD mg/kg 40.00 6.4%≤20 <br />PDS mg/kg 40.00 80.5 %75-125 <br />Cadmium 3050 06/20/2023:206762AC Blank mg/kg ND <1 <br />LCS mg/kg 40.00 86.3 %85-115 <br />MS mg/kg 40.00 100 %75-125 <br />(STK2337010-001)MSD mg/kg 40.00 91.8 %75-125 <br />MSRPD mg/kg 40.00 8.8%≤20 <br />PDS mg/kg 40.00 98.0 %75-125 <br />Chromium 3050 06/20/2023:206762AC Blank mg/kg ND <0.5 <br />LCS mg/kg 40.00 90.8 %85-115 <br />MS mg/kg 40.00 101 %75-125 <br />(STK2337010-001)MSD mg/kg 40.00 90.3 %75-125 <br />MSRPD mg/kg 40.00 8.2%≤20 <br />PDS mg/kg 40.00 99.8 %75-125 <br />Copper 3050 06/20/2023:206762AC Blank mg/kg ND <0.5 <br />LCS mg/kg 40.00 95.0 %85-115 <br />MS mg/kg 40.00 105 %75-125 <br />(STK2337010-001)MSD mg/kg 40.00 101 %75-125 <br />MSRPD mg/kg 40.00 1.6%≤20 <br />PDS mg/kg 40.00 106 %75-125 <br />Lead 3050 06/20/2023:206762AC Blank mg/kg ND <1 <br />LCS mg/kg 40.00 85.1 %85-115 <br />MS mg/kg 40.00 93.7 %75-125 <br />(STK2337010-001)MSD mg/kg 40.00 86.6 %75-125 <br />MSRPD mg/kg 40.00 5.9%≤20 <br />PDS mg/kg 40.00 93.4 %75-125 <br />Molybdenum 3050 06/20/2023:206762AC Blank mg/kg ND <0.5 <br />LCS mg/kg 24.00 89.6 %85-115 <br />MS mg/kg 24.00 106 %75-125 <br />(STK2337010-001)MSD mg/kg 24.00 102 %75-125 <br />MSRPD mg/kg 40.00 3.6%≤20 <br />PDS mg/kg 24.00 103 %75-125 <br />Nickel 3050 06/20/2023:206762AC Blank mg/kg ND <0.5 <br />LCS mg/kg 40.00 86.0 %85-115 <br />MS mg/kg 40.00 95.2 %75-125 <br />(STK2337010-001)MSD mg/kg 40.00 86.0 %75-125 <br />MSRPD mg/kg 40.00 7.2%≤20 <br />PDS mg/kg 40.00 92.1 %75-125 <br />Selenium 3050 06/20/2023:206762AC Blank mg/kg ND <2 <br />LCS mg/kg 40.00 94.1 %85-115 <br />MS mg/kg 40.00 87.6 %75-125 <br />(STK2337010-001)MSD mg/kg 40.00 84.0 %75-125 <br />Corporate Offices & Laboratory <br />853 Corporation Street <br />Santa Paula, CA 93060 <br />TEL: (805)392-2000 <br />Env FAX: (805)525-4172 / Ag FAX: (805)392-2063 <br />CA ELAP Certification No. 1573 <br />Office & Laboratory <br />2500 Stagecoach Road <br />Stockton, CA 95215 <br />TEL: (209)942-0182 <br />FAX: (209)942-0423 <br />CA ELAP Certification No. 1563 <br />Office & Laboratory <br />563 E. Lindo Avenue <br />Chico, CA 95926 <br />TEL: (530)343-5818 <br />FAX: (530)343-3807 <br />CA ELAP Certification No. 2670 <br />Office & Laboratory <br />9415 W. Goshen Avenue <br />Visalia, CA 93291 <br />TEL: (559)734-9473 <br />FAX: (559)734-8435 <br />CA ELAP Certification No. 2810 <br />Office & Laboratory <br />3442 Empresa Drive, Suite D <br />San Luis Obispo, CA 93401 <br />TEL: (805)783-2940 <br />FAX: (805)783-2912 <br />CA ELAP Certification No. 2775 <br />ENVIRONMENTAL AGRICULTURAL <br />Analytical Chemists