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Arcadis- SLO <br />4119 Broad Street Suite 210 <br />San Luis Obispo, CA 93401 <br />Project: <br />Project Number: <br />Project Manager: <br />Forward Landfill-COELT <br />30216409.01/4Q24 Austin Unit <br />Drew Feucht <br />Reported:12/03/2024 18:03 <br />Quality Control Report - Laboratory Control Sample <br />Constituent <br />Control Limits <br />PercentPercentSpike <br />QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br />Metals Analysis <br />Run # <br />Lab <br />QC Batch ID: B201580 <br />Dissolved Aluminum B201580-BS1 LCS 1015.4 1020.4 99.5 80 - 120ug/L 1 <br />Dissolved Antimony B201580-BS1 LCS 384.08 408.16 94.1 80 - 120ug/L 1 <br />Dissolved Arsenic B201580-BS1 LCS 194.69 204.08 95.4 80 - 120ug/L 1 <br />Dissolved Barium B201580-BS1 LCS 422.86 408.16 104 80 - 120ug/L 1 <br />Dissolved Beryllium B201580-BS1 LCS 207.72 204.08 102 80 - 120ug/L 1 <br />Dissolved Cadmium B201580-BS1 LCS 214.08 204.08 105 80 - 120ug/L 1 <br />Dissolved Chromium B201580-BS1 LCS 209.59 204.08 103 80 - 120ug/L 1 <br />Dissolved Cobalt B201580-BS1 LCS 210.51 204.08 103 80 - 120ug/L 1 <br />Dissolved Copper B201580-BS1 LCS 410.61 408.16 101 80 - 120ug/L 1 <br />Dissolved Iron B201580-BS1 LCS 1050.6 1020.4 103 80 - 120ug/L 1 <br />Dissolved Lead B201580-BS1 LCS 424.29 408.16 104 80 - 120ug/L 1 <br />Dissolved Manganese B201580-BS1 LCS 530.20 510.20 104 80 - 120ug/L 1 <br />Dissolved Nickel B201580-BS1 LCS 420.20 408.16 103 80 - 120ug/L 1 <br />Dissolved Selenium B201580-BS1 LCS 215.20 204.08 105 80 - 120ug/L 1 <br />Dissolved Silver B201580-BS1 LCS 102.55 102.04 100 80 - 120ug/L 1 <br />Dissolved Strontium B201580-BS1 LCS 515.92 510.20 101 80 - 120ug/L 1 <br />Dissolved Tin B201580-BS1 LCS 207.86 204.08 102 80 - 120ug/L 1 <br />Dissolved Thallium B201580-BS1 LCS 420.61 408.16 103 80 - 120ug/L 1 <br />Dissolved Vanadium B201580-BS1 LCS 206.53 204.08 101 80 - 120ug/L 1 <br />Dissolved Zinc B201580-BS1 LCS 526.33 510.20 103 80 - 120ug/L 1 <br />QC Batch ID: B201740 <br />Total Iron B201740-BS1 LCS 1141.6 1000.0 114 80 - 120ug/L 2 <br />Total Manganese B201740-BS1 LCS 549.70 500.00 110 80 - 120ug/L 2 <br />QC Batch ID: B201942 <br />Dissolved Mercury B201942-BS1 LCS 1.0000 1.0000 100 85 - 115ug/L 3 <br />QC Batch ID: B201965 <br />Hexavalent Chromium B201965-BS1 LCS 19.056 20.000 95.3 90 - 110ug/L 4 <br />The results in this report apply to the samples analyzed in accordance with the chain of custody document . This analytical report must be reproduced in its entirety . <br />All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration , separation, detachment or third party interpretation. <br />4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 80 of 85Report ID: 1001554796