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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 />Ari Terry <br />Reported:11/27/2024 11:56 <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: B201372 <br />Hexavalent Chromium B201372-BS1 LCS 19.879 20.000 99.4 90 - 110ug/L 1 <br />QC Batch ID: B201378 <br />Dissolved Aluminum B201378-BS1 LCS 1011.9 1000.0 101 80 - 120ug/L 2 <br />Dissolved Antimony B201378-BS1 LCS 373.20 400.00 93.3 80 - 120ug/L 2 <br />Dissolved Arsenic B201378-BS1 LCS 198.80 200.00 99.4 80 - 120ug/L 2 <br />Dissolved Barium B201378-BS1 LCS 417.70 400.00 104 80 - 120ug/L 2 <br />Dissolved Beryllium B201378-BS1 LCS 203.88 200.00 102 80 - 120ug/L 2 <br />Dissolved Cadmium B201378-BS1 LCS 213.00 200.00 106 80 - 120ug/L 2 <br />Dissolved Chromium B201378-BS1 LCS 206.30 200.00 103 80 - 120ug/L 2 <br />Dissolved Cobalt B201378-BS1 LCS 208.00 200.00 104 80 - 120ug/L 2 <br />Dissolved Copper B201378-BS1 LCS 399.90 400.00 100 80 - 120ug/L 2 <br />Dissolved Iron B201378-BS1 LCS 1049.0 1000.0 105 80 - 120ug/L 2 <br />Dissolved Lead B201378-BS1 LCS 424.20 400.00 106 80 - 120ug/L 2 <br />Dissolved Manganese B201378-BS1 LCS 526.00 500.00 105 80 - 120ug/L 2 <br />Dissolved Nickel B201378-BS1 LCS 419.60 400.00 105 80 - 120ug/L 2 <br />Dissolved Selenium B201378-BS1 LCS 203.80 200.00 102 80 - 120ug/L 2 <br />Dissolved Silver B201378-BS1 LCS 98.700 100.00 98.7 80 - 120ug/L 2 <br />Dissolved Strontium B201378-BS1 LCS 515.30 500.00 103 80 - 120ug/L 2 <br />Dissolved Tin B201378-BS1 LCS 210.90 200.00 105 80 - 120ug/L 2 <br />Dissolved Thallium B201378-BS1 LCS 431.20 400.00 108 80 - 120ug/L 2 <br />Dissolved Vanadium B201378-BS1 LCS 205.20 200.00 103 80 - 120ug/L 2 <br />Dissolved Zinc B201378-BS1 LCS 529.10 500.00 106 80 - 120ug/L 2 <br />QC Batch ID: B201510 <br />Total Iron B201510-BS1 LCS 1037.3 1000.0 104 80 - 120ug/L 3 <br />Total Manganese B201510-BS1 LCS 501.00 500.00 100 80 - 120ug/L 3 <br />QC Batch ID: B201766 <br />Dissolved Mercury B201766-BS1 LCS 0.91750 1.0000 91.8 85 - 115ug/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 109 of 114Report ID: 1001554123