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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 />4Q24 Austin Unit <br />Ari Terry <br />Reported:11/27/2024 15:53 <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: B200207 Used client sample: Y - Description: AMW-13, 11/14/2024 11:06 <br />Bicarbonate DUP 391.57 0.4 10389.902418477-01 mg/L 1 <br />Carbonate DUP ND 10ND2418477-01 mg/L 1 <br />QC Batch ID: B200208 Used client sample: Y - Description: AMW-32, 11/14/2024 12:04 <br />Bicarbonate DUP 333.89 1.7 10328.322418477-12 mg/L 2 <br />Carbonate DUP ND 10ND2418477-12 mg/L 2 <br />QC Batch ID: B201249 Used client sample: Y - Description: AMW-13, 11/14/2024 11:06 <br />Chloride DUP 23.593 0.3 1023.5132418477-01 mg/L 3 <br />MS 79.537 80 - 12023.513 50.505 1112418477-01 mg/L 4 <br />MSD 79.797 0.3 10 80 - 12023.513 50.505 1112418477-01 mg/L 5 <br />Nitrate as N DUP 6.9770 0.1 106.96802418477-01 mg/L 3 <br />MS 12.371 80 - 1206.9680 5.0505 1072418477-01 mg/L 4 <br />MSD 12.429 0.5 10 80 - 1206.9680 5.0505 1082418477-01 mg/L 5 <br />Sulfate DUP 71.800 0.3 1071.6152418477-01 mg/L 3 <br />MS 184.25 80 - 12071.615 101.01 1122418477-01 mg/L 4 <br />MSD 185.18 0.5 10 80 - 12071.615 101.01 1122418477-01 mg/L 5 <br />QC Batch ID: B201250 Used client sample: Y - Description: AMW-32, 11/14/2024 12:04 <br />Chloride DUP 69.898 0.1 1069.806 A102418477-12 mg/L 6 <br />MS 181.42 80 - 12069.806 101.01 110 A102418477-12 mg/L 7 <br />MSD 181.79 0.2 10 80 - 12069.806 101.01 111 A102418477-12 mg/L 8 <br />Nitrate as N DUP 34.550 0.2 1034.464 A102418477-12 mg/L 6 <br />MS 43.931 80 - 12034.464 10.101 93.7 A102418477-12 mg/L 7 <br />MSD 43.937 0.0 10 80 - 12034.464 10.101 93.8 A102418477-12 mg/L 8 <br />Sulfate DUP 92.194 0.3 1091.900 A102418477-12 mg/L 6 <br />MS 319.55 80 - 12091.900 202.02 113 A102418477-12 mg/L 7 <br />MSD 319.50 0.0 10 80 - 12091.900 202.02 113 A102418477-12 mg/L 8 <br />QC Batch ID: B201377 Used client sample: Y - Description: AMW-13, 11/14/2024 11:06 <br />Dissolved Calcium DUP 77.901 1.0 2077.1232418477-01 mg/L 9 <br />MS 87.511 75 - 12577.123 10.204 1022418477-01 mg/L 10 <br />MSD 86.156 1.6 20 75 - 12577.123 10.204 88.52418477-01 mg/L 11 <br />Dissolved Magnesium DUP 39.761 0.1 2039.7132418477-01 mg/L 9 <br />MS 48.941 75 - 12539.713 10.204 90.42418477-01 mg/L 10 <br />MSD 49.501 1.1 20 75 - 12539.713 10.204 95.92418477-01 mg/L 11 <br />Dissolved Sodium DUP 46.246 0.3 2046.1282418477-01 mg/L 9 <br />MS 55.423 75 - 12546.128 10.204 91.12418477-01 mg/L 10 <br />MSD 55.840 0.8 20 75 - 12546.128 10.204 95.22418477-01 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 118 of 123Report ID: 1001554248