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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 <br />Austin Unit <br />Drew Feucht <br />Reported:09/19/2023 15:16 <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: B169766 Used client sample: N <br />Bicarbonate DUP 69.743 1.3 1068.8162315141-01 mg/L 1 <br />Carbonate DUP ND 10ND2315141-01 mg/L 1 <br />QC Batch ID: B169767 Used client sample: Y - Description: AMW-1, 08/04/2023 12:45 <br />Bicarbonate DUP 465.96 1.0 10461.132315200-05 mg/L 2 <br />Carbonate DUP ND 10ND2315200-05 mg/L 2 <br />QC Batch ID: B171366 Used client sample: Y - Description: AMW-4, 08/04/2023 13:24 <br />Chloride DUP 19.208 0.4 1019.2842315200-06 mg/L 3 <br />MS 72.531 80 - 12019.284 50.505 1052315200-06 mg/L 4 <br />MSD 72.853 0.4 10 80 - 12019.284 50.505 1062315200-06 mg/L 5 <br />Nitrate as N DUP 1.5990 0.4 101.59302315200-06 mg/L 3 <br />MS 6.9636 80 - 1201.5930 5.0505 1062315200-06 mg/L 4 <br />MSD 7.0010 0.5 10 80 - 1201.5930 5.0505 1072315200-06 mg/L 5 <br />Sulfate DUP 26.791 0.1 1026.8282315200-06 mg/L 3 <br />MS 130.66 80 - 12026.828 101.01 1032315200-06 mg/L 4 <br />MSD 130.93 0.2 10 80 - 12026.828 101.01 1032315200-06 mg/L 5 <br />QC Batch ID: B171484 Used client sample: N <br />Dissolved Sulfide DUP ND 10ND2314895-01 mg/L 6 <br />MS 0.55160 80 - 120ND0.50000 1102314895-01 mg/L 7 <br />MSD 0.54362 1.5 10 80 - 120ND0.50000 1092314895-01 mg/L 8 <br />QC Batch ID: B171607 Used client sample: Y - Description: 7833-MW-03, 08/04/2023 09:57 <br />Total Dissolved Solids @ 180 C DUP 1385.0 0.7 101395.02315200-01 mg/L 9 <br />QC Batch ID: B171648 Used client sample: N <br />Total Kjeldahl Nitrogen DUP 2.7082 0.3 202.71552315109-01 mg/L 10 <br />MS 4.8666 90 - 1102.7155 2.0000 1082315109-01 mg/L 11 <br />MSD 4.8829 0.3 20 90 - 1102.7155 2.0000 1082315109-01 mg/L 12 <br />QC Batch ID: B171928 Used client sample: N <br />Dissolved Cyanide DUP ND 10ND2314965-01 mg/L 13 <br />MS 0.095664 90 - 110ND0.10000 95.72314965-01 mg/L 14 <br />MSD 0.096138 0.5 20 90 - 110ND0.10000 96.12314965-01 mg/L 15 <br />QC Batch ID: B172009 Used client sample: N <br />Total Organic Carbon DUP 0.64130 4.8 100.67300 J2315144-01 mg/L 16 <br />MS 5.5397 80 - 1200.67300 5.0251 96.82315144-01 mg/L 17 <br />MSD 5.5688 0.5 10 80 - 1200.67300 5.0251 97.42315144-01 mg/L 18 <br />QC Batch ID: B172390 Used client sample: N <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 49 of 59Report ID: 1001456984