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�B�4rltrC�! <br />ENYIRCNMENTA! BCIEHCEB <br />Arcadis- SLO Reported: <br />03/21/2023 8:38 <br />735 Tank Farm Rd, Suite 150 Project: <br />Forward Landfill <br />San Luis Obispo, CA 93401 Project Number: <br />30110745.01 <br />Project Manager: <br />Drew Feucht <br />Water Analysis (General Chemistry) <br />Quality Control Report - Laboratory Control Sample <br />Control Limits <br />Spike Percent Percent Lab <br />Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Run # <br />QC Batch ID: B158315 <br />Total Alkalinity as CaCO3 <br />B158315-BS3 <br />LCS <br />104.06 <br />100.00 <br />mg/L <br />104 <br />90-110 <br />1 <br />QC Batch ID: B159392 <br />Chloride <br />B159392-BS1 <br />LCS <br />51.467 <br />50.000 <br />mg/L <br />103 <br />90-110 <br />2 <br />Nitrate as N <br />8159392-BS1 <br />LCS <br />5.1290 <br />5.0000 <br />mg/L <br />103 <br />90-110 <br />2 <br />Sulfate <br />8159392-BS1 <br />LCS <br />104.05 <br />100.00 <br />mg/L <br />104 <br />90-110 <br />2 <br />QC Batch ID: B159394 <br />Chloride <br />8159394-BS1 <br />LCS <br />51.632 <br />50.000 <br />mg/L <br />103 <br />90-110 <br />3 <br />Nitrate as N <br />B159394-BS1 <br />LCS <br />5.1400 <br />5.0000 <br />mg/L <br />103 <br />90-110 <br />3 <br />Sulfate <br />B159394-BS1 <br />LCS <br />104.98 <br />100.00 <br />mg/L <br />105 <br />90-110 <br />3 <br />QC Batch ID: B159460 <br />Dissolved Calcium <br />B159460-BS1 <br />LCS <br />11.324 <br />10.000 <br />mg/L <br />113 <br />80-120 <br />4 <br />Dissolved Magnesium <br />B159460-BS1 <br />LCS <br />10.037 <br />10.000 <br />mg/L <br />100 <br />80-120 <br />4 <br />Dissolved Sodium <br />B159460-BS1 <br />LCS <br />10.638 <br />10.000 <br />mg/L <br />106 <br />80-120 <br />4 <br />Dissolved Potassium <br />B159460-BS1 <br />LCS <br />10.465 <br />10.000 <br />mg/L <br />105 <br />80-120 <br />4 <br />QC Batch ID: B159507 <br />Dissolved Cyanide <br />B159507-BS1 <br />LCS <br />0.15595 <br />0.15000 <br />mg/L <br />104 <br />90-110 <br />5 <br />QC Batch ID: B159531 <br />Total Dissolved Solids @ 180 C <br />B159531-BS1 <br />LCS <br />600.00 <br />586.00 <br />mg/L <br />102 <br />90-110 <br />6 <br />QC Batch ID: B159601 <br />Chemical Oxygen Demand <br />B159601-BS1 <br />LCS <br />755.79 <br />750.00 <br />mg 02/1- <br />101 <br />90-110 <br />7 <br />QC Batch ID: B159602 <br />Dissolved Sulfide <br />B159602-BS1 <br />B159602-BSD1 <br />LCS <br />LCSD <br />0.50471 <br />0.50471 <br />0.50000 <br />0.50000 <br />mg/L <br />mg/L <br />101 <br />101 0 <br />90-110 <br />90-110 200 <br />8 <br />9 <br />QC Batch ID: B160054 <br />Total Organic Carbon <br />B160054 -BSI <br />LCS <br />4.8450 <br />5.0000 <br />mg/L <br />96.9 <br />85-115 <br />10 <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 />Report ID: 1001407804 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 46 of 58 <br />