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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:12/11/2024 16:35 <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 />Water Analysis (General Chemistry) <br />Source Lab <br />R# <br />QC Batch ID: B201667 Used client sample: Y - Description: Duplicate #1, 11/22/2024 11:39 <br />Sulfate DUP 27.742 0.2 1027.6922418916-23RE1 mg/L 10 <br />MS 546.96 80 - 12027.692 505.05 1032418916-23RE1 mg/L 11 <br />MSD 547.02 0.0 10 80 - 12027.692 505.05 1032418916-23RE1 mg/L 12 <br />QC Batch ID: B201668 Used client sample: Y - Description: AMW-52M, 11/22/2024 10:16 <br />Chloride DUP 12.256 1.9 1012.0262418916-05 mg/L 13 <br />MS 67.306 80 - 12012.026 50.505 1092418916-05 mg/L 14 <br />MSD 67.333 0.0 10 80 - 12012.026 50.505 1102418916-05 mg/L 15 <br />Nitrate as N DUP 2.1311 1.9 102.09142418916-05 mg/L 13 <br />MS 7.3797 80 - 1202.0914 5.0505 1052418916-05 mg/L 14 <br />MSD 7.3820 0.0 10 80 - 1202.0914 5.0505 1052418916-05 mg/L 15 <br />Sulfate DUP 30.386 1.5 1029.9192418916-05 mg/L 13 <br />MS 141.49 80 - 12029.919 101.01 1102418916-05 mg/L 14 <br />MSD 141.53 0.0 10 80 - 12029.919 101.01 1102418916-05 mg/L 15 <br />QC Batch ID: B201844 Used client sample: Y - Description: AMW-60M, 11/22/2024 07:56 <br />Total Dissolved Solids @ 180 C DUP 599.99 0 10599.992418916-01 mg/L 16 <br />QC Batch ID: B201845 Used client sample: Y - Description: AMW-61M, 11/22/2024 14:06 <br />Total Dissolved Solids @ 180 C DUP 536.66 0 10536.662418916-11 mg/L 17 <br />QC Batch ID: B201846 Used client sample: Y - Description: Duplicate #1, 11/22/2024 11:39 <br />Total Dissolved Solids @ 180 C DUP 799.99 2.5 10779.992418916-23 mg/L 18 <br />QC Batch ID: B201875 Used client sample: Y - Description: AMW-50M, 11/22/2024 12:41 <br />Dissolved Calcium DUP 93.940 0.2 2094.1332418916-09 mg/L 19 <br />MS 104.29 75 - 12594.133 10.204 99.52418916-09 mg/L 20 <br />MSD 104.85 0.5 20 75 - 12594.133 10.204 1052418916-09 mg/L 21 <br />Dissolved Magnesium DUP 48.219 0.1 2048.1732418916-09 mg/L 19 <br />MS 59.020 75 - 12548.173 10.204 1062418916-09 mg/L 20 <br />MSD 58.835 0.3 20 75 - 12548.173 10.204 1042418916-09 mg/L 21 <br />Dissolved Sodium DUP 39.132 0.7 2039.4202418916-09 mg/L 19 <br />MS 49.829 75 - 12539.420 10.204 1022418916-09 mg/L 20 <br />MSD 49.412 0.8 20 75 - 12539.420 10.204 97.92418916-09 mg/L 21 <br />Dissolved Potassium DUP 9.0396 0.5 209.08662418916-09 mg/L 19 <br />MS 19.497 75 - 1259.0866 10.204 1022418916-09 mg/L 20 <br />MSD 19.753 1.3 20 75 - 1259.0866 10.204 1052418916-09 mg/L 21 <br />QC Batch ID: B201876 Used client sample: N <br />Dissolved Calcium DUP 44.044 2.5 2045.1402418997-03 mg/L 22 <br />MS 56.594 75 - 12545.140 10.204 1122418997-03 mg/L 23 <br />MSD 55.856 1.3 20 75 - 12545.140 10.204 1052418997-03 mg/L 24 <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 164 of 170Report ID: 1001557016