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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 />Drew Feucht <br />Reported:12/03/2024 18:03 <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: B200221 Used client sample: N <br />Bicarbonate DUP 418.85 1.0 10414.762418752-01 mg/L 1 <br />Carbonate DUP 14.594 13.3 1012.771 A022418752-01 mg/L 1 <br />QC Batch ID: B201539 Used client sample: N <br />Chloride DUP 122.44 0.0 10122.412418747-01 mg/L 2 <br />MS 170.55 80 - 120122.41 50.505 95.32418747-01 mg/L 3 <br />MSD 170.50 0.0 10 80 - 120122.41 50.505 95.22418747-01 mg/L 4 <br />Nitrate as NO3 DUP ND 10ND2418747-01 mg/L 2 <br />MS 22.455 80 - 120ND22.358 1002418747-01 mg/L 3 <br />MSD 22.471 0.1 10 80 - 120ND22.358 1012418747-01 mg/L 4 <br />Nitrate as N DUP ND 10ND2418747-01 mg/L 2 <br />MS 5.0724 80 - 120ND5.0505 1002418747-01 mg/L 3 <br />MSD 5.0761 0.1 10 80 - 120ND5.0505 1012418747-01 mg/L 4 <br />Sulfate DUP 71.119 0.1 1071.0302418747-01 mg/L 2 <br />MS 179.67 80 - 12071.030 101.01 1082418747-01 mg/L 3 <br />MSD 179.66 0.0 10 80 - 12071.030 101.01 1082418747-01 mg/L 4 <br />Nitrite as NO2 DUP 2.9216 1.2 102.88542418747-01 mg/L 2 <br />MS 6.1898 80 - 1202.8854 3.3182 99.62418747-01 mg/L 3 <br />MSD 6.2090 0.3 10 80 - 1202.8854 3.3182 1002418747-01 mg/L 4 <br />QC Batch ID: B201580 Used client sample: Y - Description: AMW-2, 11/20/2024 10:17 <br />Dissolved Calcium DUP 72.163 1.0 2071.4462418754-01 mg/L 5 <br />MS 84.416 75 - 12571.446 10.204 127 A032418754-01 mg/L 6 <br />MSD 84.277 0.2 20 75 - 12571.446 10.204 126 A032418754-01 mg/L 7 <br />Dissolved Magnesium DUP 34.773 0.7 2034.5372418754-01 mg/L 5 <br />MS 46.409 75 - 12534.537 10.204 1162418754-01 mg/L 6 <br />MSD 46.447 0.1 20 75 - 12534.537 10.204 1172418754-01 mg/L 7 <br />Dissolved Sodium DUP 48.238 0.7 2047.8902418754-01 mg/L 5 <br />MS 60.559 75 - 12547.890 10.204 1242418754-01 mg/L 6 <br />MSD 60.738 0.3 20 75 - 12547.890 10.204 126 A032418754-01 mg/L 7 <br />Dissolved Potassium DUP 7.3324 0.8 207.27592418754-01 mg/L 5 <br />MS 17.990 75 - 1257.2759 10.204 1052418754-01 mg/L 6 <br />MSD 18.016 0.1 20 75 - 1257.2759 10.204 1052418754-01 mg/L 7 <br />QC Batch ID: B201716 Used client sample: N <br />Dissolved Sulfide DUP ND 10ND2418716-01 mg/L 8 <br />MS 0.49854 80 - 120ND0.50000 99.72418716-01 mg/L 9 <br />MSD 0.49646 0.4 10 80 - 120ND0.50000 99.32418716-01 mg/L 10 <br />QC Batch ID: B201717 Used client sample: Y - Description: AMW-7, 11/20/2024 11:19 <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 75 of 85Report ID: 1001554796