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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/13/2026 15:13 <br /> 4119 Broad Street Suite 210 Project: Forward Landfill-COELT <br /> San Luis Obispo,CA 93401 Project Number: 30274343.01 <br /> Project Manager: Dalia Rumani <br /> Water Analysis (General Chemistry) <br /> Pace Sample ID: 2601495-03 Client Sample Name: Forward LF,AMW-23D,AMW-23D,1/29/2026 11:02:OOAM,Del-Tech/Antonio <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Quals DCN <br /> Dissolved Calcium 18 mg/L 0.10 0.016 EPA-6010B ND 1 <br /> Dissolved Magnesium 6.0 mg/L 0.050 0.022 EPA-6010B ND 1 <br /> Dissolved Sodium 18 mg/L 1.0 0.051 EPA-6010B ND 1 <br /> Dissolved Potassium 3.7 mg/L 1.0 0.10 EPA-6010B ND 1 <br /> Bicarbonate 110 mg/L 5.0 5.0 EPA-310.1 ND 2 <br /> Carbonate ND mg/L 2.5 2.5 EPA-310.1 ND 2 <br /> Total Alkalinity as CaCO3 87 mg/L 4.1 4.1 EPA-310.1 ND 2 <br /> Chloride 6.9 mg/L 0.50 0.13 EPA-300.0 0.19 3 <br /> Nitrate as N ND mg/L 0.10 0.024 EPA-300.0 ND 3 <br /> Sulfate 3.4 mg/L 1.0 0.14 EPA-300.0 ND 3 <br /> Run QC <br /> DCN Method Prep Date Date/Time Analyst Instrument Dilution Batch ID Prep Method <br /> 1 EPA-6010B 02/02/26 08:28 02/02/26 14:35 JRG ICP6 1 B226477 601OB/No Digestion <br /> 2 EPA-310.1 02/04/26 09:06 02/04/26 13:00 JM1-12 MET-1 1 B226626 No Prep <br /> 3 EPA-300.0 01/30/26 13:03 01/30/26 15:37 PRE IC7 1 B226448 No Prep <br /> DCN=Data Continuation Number <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: 1001665557 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 26 of 118 <br />