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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/13/2026 15:42 <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: 2602110-04 Client Sample Name: Forward LF,D-93/94,D-93/94,2/10/2026 11:10:OOAM,Manuel Del-Tech <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Quals DCN <br /> Dissolved Calcium 300 mg/L 0.10 0.016 EPA-6010B ND 1 <br /> Dissolved Magnesium 200 mg/L 0.050 0.022 EPA-6010B ND 1 <br /> Dissolved Sodium 600 mg/L 1.0 0.051 EPA-6010B ND 1 <br /> Dissolved Potassium 12 mg/L 1.0 0.10 EPA-6010B ND 1 <br /> Bicarbonate 1900 mg/L 10 10 EPA-310.1 ND A10 2 <br /> Carbonate ND mg/L 5.0 5.0 EPA-310.1 ND A10 2 <br /> Chloride 1100 mg/L 5.0 1.3 EPA-300.0 2.1 A10 3 <br /> Nitrate as N ND mg/L 0.50 0.12 EPA-300.0 ND A10 4 <br /> Sulfate 1.5 mg/L 5.0 0.70 EPA-300.0 1.4 J,A10 4 <br /> Dissolved Cyanide 0.042 mg/L 0.0050 0.0017 EPA-9010C ND 5 <br /> Dissolved Sulfide ND mg/L 0.10 0.050 SM-450OSD ND 6 <br /> Run QC <br /> DCN Method Prep Date Date/Time Analyst Instrument Dilution Batch ID Prep Method <br /> 1 EPA-6010B 02/12/26 07:05 02/12/26 13:57 JRG ICP6 1 B227109 601OB/No Digestion <br /> 2 EPA-310.1 02/16/26 09:05 02/16/26 12:47 JMH2 META 2 B227274 No Prep <br /> 3 EPA-300.0 02/10/26 23:55 02/11/26 08:38 CAE IC7 10 B227009 No Prep <br /> 4 EPA-300.0 02/10/26 23:55 02/11/26 02:14 OAE IC7 5 B227009 No Prep <br /> 5 EPA-9010C 02/19/26 13:06 02/19/26 15:32 RC1 KONE-1 1 B227537 EPA 9010 <br /> 6 SM-450OSD 02/13/26 09:20 02/13/26 09:20 JT3 SPEC06 1 B227224 SM 450OSD <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: 1001665591 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 24 of 43 <br />