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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 />Forward Landfill 4Q24 Austin Unit <br />Ari Terry <br />Reported:12/18/2024 14:06 <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: B202469 Used client sample: N <br />Dissolved Aluminum DUP 59.200 2.2 2057.9002419421-03 ug/L 1 <br />MS 1107.2 75 - 12557.900 1020.4 1032419421-03 ug/L 2 <br />MSD 1110.6 0.3 20 75 - 12557.900 1020.4 1032419421-03 ug/L 3 <br />Dissolved Antimony DUP ND 20ND2419421-03 ug/L 1 <br />MS 379.08 75 - 125ND408.16 92.92419421-03 ug/L 2 <br />MSD 370.20 2.4 20 75 - 125ND408.16 90.72419421-03 ug/L 3 <br />Dissolved Arsenic DUP ND 20ND2419421-03 ug/L 1 <br />MS 209.39 75 - 125ND204.08 1032419421-03 ug/L 2 <br />MSD 205.41 1.9 20 75 - 125ND204.08 1012419421-03 ug/L 3 <br />Dissolved Barium DUP 128.20 0.2 20127.902419421-03 ug/L 1 <br />MS 543.16 75 - 125127.90 408.16 1022419421-03 ug/L 2 <br />MSD 543.16 0 20 75 - 125127.90 408.16 1022419421-03 ug/L 3 <br />Dissolved Beryllium DUP ND 20ND2419421-03 ug/L 1 <br />MS 202.84 75 - 125ND204.08 99.42419421-03 ug/L 2 <br />MSD 199.14 1.8 20 75 - 125ND204.08 97.62419421-03 ug/L 3 <br />Dissolved Cadmium DUP ND 20ND2419421-03 ug/L 1 <br />MS 200.31 75 - 125ND204.08 98.22419421-03 ug/L 2 <br />MSD 197.14 1.6 20 75 - 125ND204.08 96.62419421-03 ug/L 3 <br />Dissolved Chromium DUP 1.6000 6.1 201.7000 J2419421-03 ug/L 1 <br />MS 205.61 75 - 1251.7000 204.08 99.92419421-03 ug/L 2 <br />MSD 201.43 2.1 20 75 - 1251.7000 204.08 97.92419421-03 ug/L 3 <br />Dissolved Cobalt DUP 6.5000 1.6 206.4000 J2419421-03 ug/L 1 <br />MS 210.51 75 - 1256.4000 204.08 1002419421-03 ug/L 2 <br />MSD 206.84 1.8 20 75 - 1256.4000 204.08 98.22419421-03 ug/L 3 <br />Dissolved Copper DUP 29.200 0.3 2029.3002419421-03 ug/L 1 <br />MS 443.67 75 - 12529.300 408.16 1022419421-03 ug/L 2 <br />MSD 435.51 1.9 20 75 - 12529.300 408.16 99.52419421-03 ug/L 3 <br />Dissolved Iron DUP 74.800 0.3 2074.6002419421-03 ug/L 1 <br />MS 1103.9 75 - 12574.600 1020.4 1012419421-03 ug/L 2 <br />MSD 1095.1 0.8 20 75 - 12574.600 1020.4 1002419421-03 ug/L 3 <br />Dissolved Lead DUP ND 20ND2419421-03 ug/L 1 <br />MS 394.90 75 - 125ND408.16 96.82419421-03 ug/L 2 <br />MSD 385.92 2.3 20 75 - 125ND408.16 94.62419421-03 ug/L 3 <br />Dissolved Manganese DUP 419.20 0.3 20420.602419421-03 ug/L 1 <br />MS 945.41 75 - 125420.60 510.20 1032419421-03 ug/L 2 <br />MSD 945.00 0.0 20 75 - 125420.60 510.20 1032419421-03 ug/L 3 <br />Dissolved Nickel DUP 24.600 0.4 2024.5002419421-03 ug/L 1 <br />MS 427.55 75 - 12524.500 408.16 98.72419421-03 ug/L 2 <br />MSD 419.80 1.8 20 75 - 12524.500 408.16 96.82419421-03 ug/L 3 <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 42 of 44Report ID: 1001558598