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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 />1Q24 Forward Unit 30167676.01 <br />Ari Terry <br />Reported:02/12/2024 10:53 <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: B181139 Used client sample: N <br />Bicarbonate DUP ND 10ND2401883-02 mg/L 1 <br />Carbonate DUP ND 10ND2401883-02 mg/L 1 <br />QC Batch ID: B183139 Used client sample: N <br />Chloride DUP 128.85 0.0 10128.832401906-01 mg/L 2 <br />MS 181.79 80 - 120128.83 50.505 1052401906-01 mg/L 3 <br />MSD 182.05 0.1 10 80 - 120128.83 50.505 1052401906-01 mg/L 4 <br />Nitrate as N DUP 0.23660 0.3 100.235802401906-01 mg/L 2 <br />MS 5.3734 80 - 1200.23580 5.0505 1022401906-01 mg/L 3 <br />MSD 5.3926 0.4 10 80 - 1200.23580 5.0505 1022401906-01 mg/L 4 <br />Sulfate DUP 90.782 0.0 1090.8182401906-01 mg/L 2 <br />MS 205.38 80 - 12090.818 101.01 1132401906-01 mg/L 3 <br />MSD 205.49 0.1 10 80 - 12090.818 101.01 1142401906-01 mg/L 4 <br />QC Batch ID: B183265 Used client sample: Y - Description: MW-3, 01/31/2024 13:56 <br />Dissolved Calcium DUP 109.36 0.3 20109.072401907-03 mg/L 5 <br />MS 115.06 75 - 125109.07 10.204 58.7 A032401907-03 mg/L 6 <br />MSD 115.64 0.5 20 75 - 125109.07 10.204 64.4 A032401907-03 mg/L 7 <br />Dissolved Magnesium DUP 51.320 0.1 2051.2812401907-03 mg/L 5 <br />MS 62.687 75 - 12551.281 10.204 1122401907-03 mg/L 6 <br />MSD 63.052 0.6 20 75 - 12551.281 10.204 1152401907-03 mg/L 7 <br />Dissolved Sodium DUP 49.652 2.1 2050.6922401907-03 mg/L 8 <br />MS 58.413 75 - 12550.692 10.204 75.72401907-03 mg/L 9 <br />MSD 59.441 1.7 20 75 - 12550.692 10.204 85.72401907-03 mg/L 10 <br />Dissolved Potassium DUP 8.4069 0.4 208.43712401907-03 mg/L 8 <br />MS 18.597 75 - 1258.4371 10.204 99.62401907-03 mg/L 9 <br />MSD 19.259 3.5 20 75 - 1258.4371 10.204 1062401907-03 mg/L 10 <br />QC Batch ID: B183404 Used client sample: N <br />Total Dissolved Solids @ 180 C DUP 526.66 1.3 10519.992401888-01 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 45 of 50Report ID: 1001488845