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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 />30216409.01/4Qtr Austin Unit <br />Ari Terry <br />Reported:01/02/2025 10:17 <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: B200202 Used client sample: Y - Description: AMW-5R, 11/13/2024 12:03 <br />Bicarbonate DUP 439.25 1.6 10432.202418357-01 mg/L 1 <br />Carbonate DUP ND 10ND2418357-01 mg/L 1 <br />QC Batch ID: B200203 Used client sample: N <br />Bicarbonate DUP 396.95 1.6 10390.652418340-01 mg/L 2 <br />Carbonate DUP ND 10ND2418340-01 mg/L 2 <br />QC Batch ID: B201141 Used client sample: N <br />Dissolved Calcium DUP 236.19 1.7 20232.232418340-01 mg/L 3 <br />MS 245.44 75 - 125232.23 10.204 130 A032418340-01 mg/L 4 <br />MSD 244.98 0.2 20 75 - 125232.23 10.204 1252418340-01 mg/L 5 <br />Dissolved Magnesium DUP 73.297 0.3 2073.0842418340-01 mg/L 3 <br />MS 84.616 75 - 12573.084 10.204 1132418340-01 mg/L 4 <br />MSD 86.430 2.1 20 75 - 12573.084 10.204 131 A032418340-01 mg/L 5 <br />Dissolved Sodium DUP 402.10 0.6 20399.762418340-01 mg/L 3 <br />MS 410.54 75 - 125399.76 10.204 1062418340-01 mg/L 4 <br />MSD 422.42 2.9 20 75 - 125399.76 10.204 222 A032418340-01 mg/L 5 <br />Dissolved Potassium DUP 3.6020 3.1 203.49212418340-01 mg/L 3 <br />MS 14.823 75 - 1253.4921 10.204 1112418340-01 mg/L 4 <br />MSD 14.987 1.1 20 75 - 1253.4921 10.204 1132418340-01 mg/L 5 <br />QC Batch ID: B201148 Used client sample: N <br />Chloride DUP 129.18 0.4 10129.712418340-01 mg/L 6 <br />MS 406.19 80 - 120129.71 252.53 1092418340-01 mg/L 7 <br />MSD 407.80 0.4 10 80 - 120129.71 252.53 1102418340-01 mg/L 8 <br />Nitrate as N DUP 0.25000 2.0 100.25500 J2418340-01 mg/L 6 <br />MS 25.429 80 - 1200.25500 25.253 99.72418340-01 mg/L 7 <br />MSD 25.485 0.2 10 80 - 1200.25500 25.253 99.92418340-01 mg/L 8 <br />Sulfate DUP 1112.0 0.1 101110.82418340-01 mg/L 6 <br />MS 1622.2 80 - 1201110.8 505.05 1012418340-01 mg/L 7 <br />MSD 1621.3 0.1 10 80 - 1201110.8 505.05 1012418340-01 mg/L 8 <br />QC Batch ID: B201155 Used client sample: Y - Description: AMW-49, 11/13/2024 15:02 <br />Chloride DUP 46.351 0.6 1046.0782418357-04 mg/L 9 <br />MS 101.94 80 - 12046.078 50.505 1112418357-04 mg/L 10 <br />MSD 102.14 0.2 10 80 - 12046.078 50.505 1112418357-04 mg/L 11 <br />Nitrate as N DUP 0.67400 3.4 100.697002418357-04 mg/L 9 <br />MS 5.7778 80 - 1200.69700 5.0505 1012418357-04 mg/L 10 <br />MSD 5.7949 0.3 10 80 - 1200.69700 5.0505 1012418357-04 mg/L 11 <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 103 of 108Report ID: 1001561256