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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/14/2026 11:46 <br /> 4119 Broad Street Suite 210 Project: Forward Landfill-COELT <br /> San Luis Obispo,CA 93401 Project Number: 30274343.01 1Q26 Groundwater Monitoring Wells <br /> Project Manager: Dalia Rumani <br /> Water Analysis (General Chemistry) <br /> Pace Sample ID: 2601898-03 Client Sample Name: 1Q26,AMW-52M,AMW-52M,2/5/2026 9:07:OOAM,Antonio Del-Tech <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Qualls DCN <br /> Dissolved Calcium 80 mg/L 0.10 0.016 EPA-6010B ND 1 <br /> Dissolved Magnesium 39 mg/L 0.050 0.022 EPA-6010B ND 1 <br /> Dissolved Sodium 44 mg/L 1.0 0.051 EPA-6010B ND 1 <br /> Dissolved Potassium 6.9 mg/L 1.0 0.10 EPA-6010B ND 1 <br /> Bicarbonate 480 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 /> Chloride 13 mg/L 0.50 0.13 EPA-300.0 0.21 3 <br /> Nitrate as N 1.7 mg/L 0.10 0.024 EPA-300.0 ND 3 <br /> Sulfate 27 mg/L 1.0 0.14 EPA-300.0 0.17 3 <br /> Run QC <br /> DCN Method Prep Date Date/Time Analyst Instrument Dilution Batch ID Prep Method <br /> 1 EPA-6010B 02/09/26 12:21 02/09/26 21:08 JEH ICP6 1 B226888 601OB/No Digestion <br /> 2 EPA-310.1 02/11/26 10:10 02/11/26 16:10 JMH2 MET-1 1 B227055 No Prep <br /> 3 EPA-300.0 02/06/26 09:00 02/06/26 11:58 OAE IC5 1 B226784 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 1001665835 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 27 of 116 <br />