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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/10/2026 15:35 <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: 2602031-11 Client Sample Name: Forward Lf,D-88A, D-88A,2/9/2026 10:25:OOAM,Manuel/Del-Tech <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Qualls DCN <br /> Dissolved Calcium 5.5 mg/L 4.0 0.64 EPA-6010B ND A10 1 <br /> Dissolved Magnesium 1.5 mg/L 2.0 0.88 EPA-6010B ND J,A10 1 <br /> Dissolved Sodium 20000 mg/L 40 2.0 EPA-6010B ND A10 1 <br /> Dissolved Potassium 23 mg/L 40 4.0 EPA-6010B ND J,A10 1 <br /> Bicarbonate 22000 mg/L 100 100 EPA-310.1 ND A10 2 <br /> Carbonate 19000 mg/L 50 50 EPA-310.1 ND A10 2 <br /> Chloride 370 mg/L 50 13 EPA-300.0 22 A10 3 <br /> Nitrate as N 2.8 mg/L 10 2.4 EPA-300.0 ND J,A10 3 <br /> Sulfate 100 mg/L 100 14 EPA-300.0 ND A10 3 <br /> Dissolved Cyanide 0.069 mg/L 0.050 0.017 EPA-9010C ND A10 4 <br /> Dissolved Sulfide 48 mg/L 10 5.0 SM-450OSD ND A10 5 <br /> Run QC <br /> DCN Method Prep Date Date/Time Analyst Instrument Dilution Batch ID Prep Method <br /> 1 EPA-6010B 02/11/26 07:55 02/11/26 14:00 JRG ICP6 40 B227026 6010B/No Digestion <br /> 2 EPA-310.1 02/13/26 08:09 02/13/26 12:42 JMH2 MET-1 20 B227197 No Prep <br /> 3 EPA-300.0 02/10/26 09:00 02/10/26 16:06 PRE IC2 100 B226945 No Prep <br /> 4 EPA-9010C 02/19/26 13:06 02/19/26 18:23 RC1 KONE-1 10 B227537 EPA 9010 <br /> 5 SM-4500SD 02/10/26 08:20 02/10/26 08:20 JT3 SPEC06 100 B226973 SM 4500SD <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: 1001665034 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 63 of 147 <br />