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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 />Ari Terry <br />Reported:11/27/2024 11:56 <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: B200210 Used client sample: N <br />Bicarbonate DUP 607.30 1.5 10598.402418539-02 mg/L 1 <br />Carbonate DUP ND 10ND2418539-02 mg/L 1 <br />QC Batch ID: B200211 Used client sample: Y - Description: AMW-23D, 11/15/2024 12:15 <br />Bicarbonate DUP 115.19 1.1 10113.892418555-03 mg/L 2 <br />Carbonate DUP ND 10ND2418555-03 mg/L 2 <br />QC Batch ID: B200212 Used client sample: Y - Description: AMW-1, 11/15/2024 15:38 <br />Bicarbonate DUP 386.19 1.9 10393.622418555-14 mg/L 3 <br />Carbonate DUP ND 10ND2418555-14 mg/L 3 <br />QC Batch ID: B201296 Used client sample: N <br />Chloride DUP 31.357 0.5 1031.5162418484-02 mg/L 4 <br />MS 86.236 80 - 12031.516 50.505 1082418484-02 mg/L 5 <br />MSD 86.327 0.1 10 80 - 12031.516 50.505 1092418484-02 mg/L 6 <br />Nitrate as N DUP 3.1222 0.8 103.09622418484-02 mg/L 4 <br />MS 8.5837 80 - 1203.0962 5.0505 1092418484-02 mg/L 5 <br />MSD 8.5934 0.1 10 80 - 1203.0962 5.0505 1092418484-02 mg/L 6 <br />Sulfate DUP 62.132 0.3 1062.3192418484-02 mg/L 4 <br />MS 171.39 80 - 12062.319 101.01 1082418484-02 mg/L 5 <br />MSD 171.48 0.0 10 80 - 12062.319 101.01 1082418484-02 mg/L 6 <br />QC Batch ID: B201306 Used client sample: Y - Description: AMW-23S, 11/15/2024 12:51 <br />Chloride DUP 40.515 0.0 1040.5222418555-04RE1 mg/L 7 <br />MS 150.36 80 - 12040.522 101.01 1092418555-04RE1 mg/L 8 <br />MSD 150.71 0.2 10 80 - 12040.522 101.01 1092418555-04RE1 mg/L 9 <br />Nitrate as NO3 DUP 122.63 0.1 10122.532418555-04RE1 mg/L 7 <br />MS 166.83 80 - 120122.53 44.715 99.12418555-04RE1 mg/L 8 <br />MSD 167.06 0.1 10 80 - 120122.53 44.715 99.62418555-04RE1 mg/L 9 <br />Nitrate as N DUP 27.701 0.1 1027.6792418555-04RE1 mg/L 7 <br />MS 37.687 80 - 12027.679 10.101 99.12418555-04RE1 mg/L 8 <br />MSD 37.738 0.1 10 80 - 12027.679 10.101 99.62418555-04RE1 mg/L 9 <br />Sulfate DUP 62.301 0.0 1062.3042418555-04RE1 mg/L 7 <br />MS 281.91 80 - 12062.304 202.02 1092418555-04RE1 mg/L 8 <br />MSD 282.48 0.2 10 80 - 12062.304 202.02 1092418555-04RE1 mg/L 9 <br />Nitrite as NO2 DUP ND 10ND2418555-04RE1 mg/L 7 <br />MS 5.9984 80 - 120ND6.6364 90.42418555-04RE1 mg/L 8 <br />MSD 6.0329 0.6 10 80 - 120ND6.6364 90.92418555-04RE1 mg/L 9 <br />QC Batch ID: B201378 Used client sample: Y - Description: AMW-23S, 11/15/2024 12:51 <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 104 of 114Report ID: 1001554123