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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 <br />Ari Terry <br />Reported:12/05/2024 12:12 <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: B200232 Used client sample: N <br />Bicarbonate DUP 565.75 1.6 10556.852418965-03 mg/L 1 <br />Carbonate DUP ND 10ND2418965-03 mg/L 1 <br />QC Batch ID: B200233 Used client sample: Y - Description: MW-1, 11/25/2024 13:11 <br />Bicarbonate DUP 479.31 1.2 10473.752418966-04 mg/L 2 <br />Carbonate DUP ND 10ND2418966-04 mg/L 2 <br />QC Batch ID: B200234 Used client sample: Y - Description: MW-3, 11/25/2024 16:22 <br />Bicarbonate DUP 409.19 2.1 10417.732418966-07 mg/L 3 <br />Carbonate DUP ND 10ND2418966-07 mg/L 3 <br />QC Batch ID: B201785 Used client sample: Y - Description: MW-3, 11/25/2024 16:22 <br />Chloride DUP 83.655 1.0 1082.8452418966-07 mg/L 4 <br />MS 138.61 80 - 12082.845 50.505 1102418966-07 mg/L 5 <br />MSD 138.83 0.2 10 80 - 12082.845 50.505 1112418966-07 mg/L 6 <br />Nitrate as N DUP 10.864 1.5 1010.7072418966-07 mg/L 4 <br />MS 16.267 80 - 12010.707 5.0505 1102418966-07 mg/L 5 <br />MSD 16.291 0.1 10 80 - 12010.707 5.0505 1112418966-07 mg/L 6 <br />Sulfate DUP 58.813 1.6 1057.8642418966-07 mg/L 4 <br />MS 173.71 80 - 12057.864 101.01 1152418966-07 mg/L 5 <br />MSD 174.21 0.3 10 80 - 12057.864 101.01 1152418966-07 mg/L 6 <br />QC Batch ID: B201876 Used client sample: N <br />Dissolved Calcium DUP 44.044 2.5 2045.1402418997-03 mg/L 7 <br />MS 56.594 75 - 12545.140 10.204 1122418997-03 mg/L 8 <br />MSD 55.856 1.3 20 75 - 12545.140 10.204 1052418997-03 mg/L 9 <br />Dissolved Magnesium DUP 46.116 0.1 2046.0902418997-03 mg/L 7 <br />MS 57.076 75 - 12546.090 10.204 1082418997-03 mg/L 8 <br />MSD 57.269 0.3 20 75 - 12546.090 10.204 1102418997-03 mg/L 9 <br />Dissolved Sodium DUP 90.486 1.7 2092.0342418997-03 mg/L 7 <br />MS 102.13 75 - 12592.034 10.204 98.92418997-03 mg/L 8 <br />MSD 102.83 0.7 20 75 - 12592.034 10.204 1062418997-03 mg/L 9 <br />Dissolved Potassium DUP 1.1217 3.8 201.16532418997-03 mg/L 7 <br />MS 12.148 75 - 1251.1653 10.204 1082418997-03 mg/L 8 <br />MSD 12.031 1.0 20 75 - 1251.1653 10.204 1062418997-03 mg/L 9 <br />QC Batch ID: B201930 Used client sample: Y - Description: MW-23R, 11/25/2024 09:30 <br />Total Dissolved Solids @ 180 C DUP 840.00 0.6 10845.002418966-01 mg/L 10 <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 70 of 75Report ID: 1001555156