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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 - Precision & Accuracy <br />Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals <br />Source Spike Percent Percent <br />Control Limits <br />Metals Analysis <br />Source Lab <br />R# <br />QC Batch ID: B201378 Used client sample: Y - Description: AMW-23S, 11/15/2024 12:51 <br />Dissolved Manganese DUP ND 20ND2418555-04 ug/L 4 <br />MS 570.41 75 - 125ND510.20 1122418555-04 ug/L 5 <br />MSD 569.08 0.2 20 75 - 125ND510.20 1122418555-04 ug/L 6 <br />Dissolved Nickel DUP ND 20ND2418555-04 ug/L 4 <br />MS 431.73 75 - 125ND408.16 1062418555-04 ug/L 5 <br />MSD 431.33 0.1 20 75 - 125ND408.16 1062418555-04 ug/L 6 <br />Dissolved Selenium DUP ND 20ND2418555-04 ug/L 4 <br />MS 232.45 75 - 125ND204.08 1142418555-04 ug/L 5 <br />MSD 231.73 0.3 20 75 - 125ND204.08 1142418555-04 ug/L 6 <br />Dissolved Silver DUP ND 20ND2418555-04 ug/L 4 <br />MS 99.286 75 - 125ND102.04 97.32418555-04 ug/L 5 <br />MSD 99.388 0.1 20 75 - 125ND102.04 97.42418555-04 ug/L 6 <br />Dissolved Strontium DUP 954.40 0.7 20961.402418555-04 ug/L 4 <br />MS 1518.8 75 - 125961.40 510.20 1092418555-04 ug/L 5 <br />MSD 1512.0 0.4 20 75 - 125961.40 510.20 1082418555-04 ug/L 6 <br />Dissolved Tin DUP ND 20ND2418555-04 ug/L 4 <br />MS 220.51 75 - 125ND204.08 1082418555-04 ug/L 5 <br />MSD 222.24 0.8 20 75 - 125ND204.08 1092418555-04 ug/L 6 <br />Dissolved Thallium DUP ND 20ND2418555-04 ug/L 4 <br />MS 451.84 75 - 125ND408.16 1112418555-04 ug/L 5 <br />MSD 452.55 0.2 20 75 - 125ND408.16 1112418555-04 ug/L 6 <br />Dissolved Vanadium DUP 17.600 1.7 2017.3002418555-04 ug/L 4 <br />MS 237.55 75 - 12517.300 204.08 1082418555-04 ug/L 5 <br />MSD 237.45 0.0 20 75 - 12517.300 204.08 1082418555-04 ug/L 6 <br />Dissolved Zinc DUP ND 20ND2418555-04 ug/L 4 <br />MS 555.31 75 - 125ND510.20 1092418555-04 ug/L 5 <br />MSD 552.96 0.4 20 75 - 125ND510.20 1082418555-04 ug/L 6 <br />QC Batch ID: B201510 Used client sample: Y - Description: AMW-14, 11/15/2024 13:50 <br />Total Iron DUP 263.20 0.0 20263.302418555-05 ug/L 7 <br />MS 1344.8 75 - 125263.30 1000.0 1082418555-05 ug/L 8 <br />MSD 1354.0 0.7 20 75 - 125263.30 1000.0 1092418555-05 ug/L 9 <br />Total Manganese DUP 8.0000 7.2 208.6000 J2418555-05 ug/L 7 <br />MS 534.20 75 - 1258.6000 500.00 1052418555-05 ug/L 8 <br />MSD 531.30 0.5 20 75 - 1258.6000 500.00 1052418555-05 ug/L 9 <br />QC Batch ID: B201766 Used client sample: N <br />Dissolved Mercury DUP ND 20ND2418340-05 ug/L 10 <br />MS 0.99000 70 - 130ND1.0000 99.02418340-05 ug/L 11 <br />MSD 0.97500 1.5 20 70 - 130ND1.0000 97.52418340-05 ug/L 12 <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 112 of 114Report ID: 1001554123