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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 />Forward Landfill 4Q24 Austin Unit <br />Ari Terry <br />Reported:12/18/2024 14:06 <br />Quality Control Report - Laboratory Control Sample <br />Constituent <br />Control Limits <br />PercentPercentSpike <br />QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br />Water Analysis (General Chemistry) <br />Run # <br />Lab <br />QC Batch ID: B202190 <br />Chloride B202190-BS1 LCS 52.895 50.000 106 90 - 110mg/L 1 <br />Nitrate as N B202190-BS1 LCS 5.1370 5.0000 103 90 - 110mg/L 1 <br />Sulfate B202190-BS1 LCS 104.16 100.00 104 90 - 110mg/L 1 <br />QC Batch ID: B202469 <br />Dissolved Calcium B202469-BS1 LCS 10.066 10.000 101 80 - 120mg/L 2 <br />Dissolved Magnesium B202469-BS1 LCS 10.198 10.000 102 80 - 120mg/L 2 <br />Dissolved Sodium B202469-BS1 LCS 10.124 10.000 101 80 - 120mg/L 2 <br />Dissolved Potassium B202469-BS1 LCS 9.9450 10.000 99.4 80 - 120mg/L 2 <br />QC Batch ID: B202492 <br />Dissolved Sulfide B202492-BS1 LCS 0.51879 0.50000 104 90 - 110mg/L 3 <br />LCSDB202492-BSD1 0.51562 0.50000 103 0.6 90 - 110 200mg/L 4 <br />QC Batch ID: B202563 <br />Total Dissolved Solids @ 180 C B202563-BS1 LCS 585.00 586.00 99.8 90 - 110mg/L 5 <br />QC Batch ID: B202924 <br />Dissolved Cyanide B202924-BS1 LCS 0.15565 0.15000 104 90 - 110mg/L 6 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B202190-BS1 LCS EPA-300.0 OAE IC2 112/05/24 12/06/24 12:17 <br /> 2 B202469-BS1 LCS EPA-6010B JEH ICP5 112/09/24 12/09/24 12:50 <br /> 3 B202492-BS1 LCS SM-4500SD JT3 SPEC06 112/09/24 12/09/24 11:15 <br /> 4 B202492-BSD1 LCSD SM-4500SD JT3 SPEC06 112/09/24 12/09/24 11:15 <br /> 5 B202563-BS1 LCS EPA-160.1 IJC MANUAL 512/10/24 12/10/24 13:30 <br /> 6 B202924-BS1 LCS EPA-9010C RC1 KONE-1 112/13/24 12/17/24 18:58 <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 37 of 44Report ID: 1001558598