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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/13/2026 11:37 <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: 2601988-02 Client Sample Name: Forward LF,TS-2(FU-23),TS-2(FU-23),2/6/2026 1:55:OOPM,Antonio Del-Tech <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Quals DCN <br /> Dissolved Calcium 260 mg/L 0.50 0.080 EPA-6010B ND A10 1 <br /> Dissolved Magnesium 540 mg/L 0.25 0.11 EPA-6010B ND A10 1 <br /> Dissolved Sodium 3500 mg/L 5.0 0.26 EPA-6010B ND A10 1 <br /> Dissolved Potassium 430 mg/L 5.0 0.50 EPA-6010B ND A10 1 <br /> Bicarbonate 4700 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 6900 mg/L 25 6.5 EPA-300.0 ND A10 3 <br /> Nitrate as N ND mg/L 5.0 1.2 EPA-300.0 ND A10 3 <br /> Sulfate ND mg/L 50 7.0 EPA-300.0 ND A10 3 <br /> Dissolved Cyanide 0.014 mg/L 0.0050 0.0017 EPA-9010C ND 4 <br /> Dissolved Sulfide 0.11 mg/L 0.10 0.050 SM-450OSD ND 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 07:50 02/11/26 10:39 NW1 ICP5 5 B227024 601OB/No Digestion <br /> 2 EPA-310.1 02/12/26 08:39 02/12/26 13:13 JMH2 MET-1 2 B227115 No Prep <br /> 3 EPA-300.0 02/06/26 22:00 02/06/26 23:14 PRE IC12 50 B226735 No Prep <br /> 4 EPA-901 OC 02/17/26 11:19 02/19/26 17:24 RC1 KONE-1 1 B227367 EPA 9010 <br /> 5 SM-450OSD 02/09/26 11:45 02/09/26 11:45 JT3 SPEC06 1 B226896 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: 1001665326 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 14 of 44 <br />