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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: B201372 Used client sample: N <br />Hexavalent Chromium DUP 0.069900 4.3 100.073000 J2418554-12 ug/L 1 <br />MS 20.948 90 - 1100.073000 20.202 1032418554-12 ug/L 2 <br />MSD 20.913 0.2 10 90 - 1100.073000 20.202 1032418554-12 ug/L 3 <br />QC Batch ID: B201378 Used client sample: Y - Description: AMW-23S, 11/15/2024 12:51 <br />Dissolved Aluminum DUP ND 20ND2418555-04 ug/L 4 <br />MS 1131.0 75 - 125ND1020.4 1112418555-04 ug/L 5 <br />MSD 1129.5 0.1 20 75 - 125ND1020.4 1112418555-04 ug/L 6 <br />Dissolved Antimony DUP ND 20ND2418555-04 ug/L 4 <br />MS 391.94 75 - 125ND408.16 96.02418555-04 ug/L 5 <br />MSD 398.06 1.5 20 75 - 125ND408.16 97.52418555-04 ug/L 6 <br />Dissolved Arsenic DUP ND 20ND2418555-04 ug/L 4 <br />MS 223.27 75 - 125ND204.08 1092418555-04 ug/L 5 <br />MSD 225.00 0.8 20 75 - 125ND204.08 1102418555-04 ug/L 6 <br />Dissolved Barium DUP 236.60 0.7 20238.202418555-04 ug/L 4 <br />MS 698.06 75 - 125238.20 408.16 1132418555-04 ug/L 5 <br />MSD 696.53 0.2 20 75 - 125238.20 408.16 1122418555-04 ug/L 6 <br />Dissolved Beryllium DUP ND 20ND2418555-04 ug/L 4 <br />MS 217.63 75 - 125ND204.08 1072418555-04 ug/L 5 <br />MSD 217.11 0.2 20 75 - 125ND204.08 1062418555-04 ug/L 6 <br />Dissolved Cadmium DUP ND 20ND2418555-04 ug/L 4 <br />MS 222.96 75 - 125ND204.08 1092418555-04 ug/L 5 <br />MSD 222.65 0.1 20 75 - 125ND204.08 1092418555-04 ug/L 6 <br />Dissolved Chromium DUP 3.3000 6.2 203.1000 J2418555-04 ug/L 4 <br />MS 221.12 75 - 1253.1000 204.08 1072418555-04 ug/L 5 <br />MSD 220.20 0.4 20 75 - 1253.1000 204.08 1062418555-04 ug/L 6 <br />Dissolved Cobalt DUP ND 20ND2418555-04 ug/L 4 <br />MS 214.69 75 - 125ND204.08 1052418555-04 ug/L 5 <br />MSD 214.18 0.2 20 75 - 125ND204.08 1052418555-04 ug/L 6 <br />Dissolved Copper DUP ND 20ND2418555-04 ug/L 4 <br />MS 425.61 75 - 125ND408.16 1042418555-04 ug/L 5 <br />MSD 426.22 0.1 20 75 - 125ND408.16 1042418555-04 ug/L 6 <br />Dissolved Iron DUP ND 20ND2418555-04 ug/L 4 <br />MS 1091.4 75 - 125ND1020.4 1072418555-04 ug/L 5 <br />MSD 1093.2 0.2 20 75 - 125ND1020.4 1072418555-04 ug/L 6 <br />Dissolved Lead DUP ND 20ND2418555-04 ug/L 4 <br />MS 428.88 75 - 125ND408.16 1052418555-04 ug/L 5 <br />MSD 431.02 0.5 20 75 - 125ND408.16 1062418555-04 ug/L 6 <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 111 of 114Report ID: 1001554123