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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 <br />1Q24 FWD Unit 30167676.01 <br />Ari Terry <br />Reported:02/19/2024 14:08 <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: B183659 Used client sample: N <br />Dissolved Copper DUP ND 20ND2402016-07 ug/L 10 <br />MS 2127.0 75 - 125ND2040.8 1042402016-07 ug/L 11 <br />MSD 2110.6 0.8 20 75 - 125ND2040.8 1032402016-07 ug/L 12 <br />Dissolved Iron DUP 1043.8 0.8 201035.02402016-07 ug/L 10 <br />MS 5995.8 75 - 1251035.0 5102.0 97.22402016-07 ug/L 11 <br />MSD 5970.4 0.4 20 75 - 1251035.0 5102.0 96.72402016-07 ug/L 12 <br />Dissolved Lead DUP ND 20ND2402016-07 ug/L 10 <br />MS 2133.6 75 - 125ND2040.8 1052402016-07 ug/L 11 <br />MSD 2088.6 2.1 20 75 - 125ND2040.8 1022402016-07 ug/L 12 <br />Dissolved Manganese DUP 2580.4 0.5 202592.62402016-07 ug/L 10 <br />MS 5155.7 75 - 1252592.6 2551.0 1002402016-07 ug/L 11 <br />MSD 5193.8 0.7 20 75 - 1252592.6 2551.0 1022402016-07 ug/L 12 <br />Dissolved Nickel DUP 140.39 2.1 20137.492402016-07 ug/L 10 <br />MS 2238.6 75 - 125137.49 2040.8 1032402016-07 ug/L 11 <br />MSD 2274.6 1.6 20 75 - 125137.49 2040.8 1052402016-07 ug/L 12 <br />Dissolved Selenium DUP ND 20ND2402016-07 ug/L 10 <br />MS 1051.4 75 - 125ND1020.4 1032402016-07 ug/L 11 <br />MSD 1040.6 1.0 20 75 - 125ND1020.4 1022402016-07 ug/L 12 <br />Dissolved Silver DUP ND 20ND2402016-07 ug/L 10 <br />MS 504.50 75 - 125ND510.20 98.92402016-07 ug/L 11 <br />MSD 489.49 3.0 20 75 - 125ND510.20 95.92402016-07 ug/L 12 <br />Dissolved Strontium DUP 4261.1 3.7 204106.82402016-07 ug/L 10 <br />MS 6597.6 75 - 1254106.8 2551.0 97.62402016-07 ug/L 11 <br />MSD 6638.0 0.6 20 75 - 1254106.8 2551.0 99.22402016-07 ug/L 12 <br />Dissolved Tin DUP ND 20ND2402016-07 ug/L 10 <br />MS 1167.3 75 - 125ND1020.4 1142402016-07 ug/L 11 <br />MSD 1130.0 3.2 20 75 - 125ND1020.4 1112402016-07 ug/L 12 <br />Dissolved Thallium DUP ND 20ND2402016-07 ug/L 10 <br />MS 2236.7 75 - 125ND2040.8 1102402016-07 ug/L 11 <br />MSD 2142.5 4.3 20 75 - 125ND2040.8 1052402016-07 ug/L 12 <br />Dissolved Vanadium DUP 16.367 12.2 2014.487 J2402016-07 ug/L 10 <br />MS 1152.4 75 - 12514.487 1020.4 1122402016-07 ug/L 11 <br />MSD 1125.9 2.3 20 75 - 12514.487 1020.4 1092402016-07 ug/L 12 <br />Dissolved Zinc DUP ND 20ND2402016-07 ug/L 10 <br />MS 2671.8 75 - 125ND2551.0 1052402016-07 ug/L 11 <br />MSD 2696.7 0.9 20 75 - 125ND2551.0 1062402016-07 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 80 of 99Report ID: 1001490723