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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/14/2026 12:02 <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: 2601733-14 Client Sample Name: Forward LF,AMW-4,AMW-4,2/3/2026 12:32:OOPM,Antonio Del-Tech <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Quals DCN <br /> Dissolved Calcium 54 mg/L 0.10 0.016 EPA-6010B ND 1 <br /> Dissolved Magnesium 25 mg/L 0.050 0.022 EPA-6010B ND 1 <br /> Dissolved Sodium 20 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 270 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 230 mg/L 4.1 4.1 EPA-310.1 ND 2 <br /> Chloride 5.7 mg/L 0.50 0.13 EPA-300.0 0.19 3 <br /> Nitrate as N 0.75 mg/L 0.10 0.024 EPA-300.0 ND 3 <br /> Sulfate 16 mg/L 1.0 0.14 EPA-300.0 0.27 3 <br /> Total Dissolved Solids @ 180 C 300 mg/L 20 10 EPA-160.1 ND A10 4 <br /> Dissolved Cyanide ND 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-601013 02/05/26 07:36 02/06/26 17:47 JEH ICP5 1 B226693 601OB/No Digestion <br /> 2 EPA-310.1 02/09/26 09:02 02/09/26 14:20 JMH2 META 1 B226869 No Prep <br /> 3 EPA-300.0 02/04/26 10:00 02/04/26 14:39 EEC IC7 1 B226636 No Prep <br /> 4 EPA-160.1 02/09/26 15:09 02/09/26 15:09 RLH MANUAL 2 B226906 No Prep <br /> 5 EPA-9010C 02/13/26 11:53 02/13/26 15:12 RC1 KONE-1 1 B227221 EPA 9010 <br /> 6 SM-450OSD 02/10/26 09:40 02/10/26 09:40 JT3 SPEC06 1 B226974 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: 1001665842 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 71 of 109 <br />