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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/13/2026 15:19 <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: 2601990-10 Client Sample Name: Forward Lf,8106-A,8106-A,2/6/2026 12:42:OOPM,Antonio Del-Tech <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Quals DCN <br /> Dissolved Calcium 78 mg/L 0.10 0.016 EPA-6010B ND 1 <br /> Dissolved Magnesium 41 mg/L 0.050 0.022 EPA-6010B ND 1 <br /> Dissolved Sodium 39 mg/L 1.0 0.051 EPA-6010B ND 1 <br /> Dissolved Potassium 7.5 mg/L 1.0 0.10 EPA-6010B ND 1 <br /> Bicarbonate 380 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 38 mg/L 0.50 0.13 EPA-300.0 ND 3 <br /> Nitrate as N 3.3 mg/L 0.10 0.024 EPA-300.0 ND 3 <br /> Sulfate 39 mg/L 1.0 0.14 EPA-300.0 ND 3 <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 11:00 NW1 ICP5 1 B227024 601OB/No Digestion <br /> 2 EPA-310.1 02/12/26 08:41 02/12/26 15:54 JMH2 MET-1 1 B227116 No Prep <br /> 3 EPA-300.0 02/06/26 22:00 02/07/26 01:43 PRE IC9 1 B226853 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: 1001665561 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 53 of 75 <br />