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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/10/2026 15:26 <br /> 4119 Broad Street Suite 210 Project: Forward Landfill-COELT <br /> San Luis Obispo,CA 93401 Project Number: 30274343.01 1 Q26 Pond Grab <br /> Project Manager: Dalia Rumani <br /> Water Analysis (General Chemistry) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals R# <br /> QC Batch ID: B226813 Used client sample: N <br /> Nitrate as N DUP 2601903-01 1.2374 1.2328 mg/L 0.4 10 1 <br /> MS 2601903-01 1.2374 6.3547 5.0000 mg/L 102 80-120 2 <br /> MSD 2601903-01 1.2374 6.3547 5.0000 mg/L 0 102 10 80-120 3 <br /> QC Batch ID: B227603 Used client sample: N <br /> Total Kjeldahl Nitrogen DUP 2601957-01 ND ND mg/L 20 4 <br /> MS 2601957-01 ND 2.0670 2.0000 mg/L 103 90-110 5 <br /> MSD 2601957-01 ND 2.0943 2.0000 mg/L 1.3 105 20 90-110 6 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B226813-DUP1 DUP EPA-300.0 02/06/26 02/06/2611:52 PRE IC12 1 <br /> 2 B226813-MS1 MS EPA-300.0 02/06/26 02/06/2612:06 OAE IC12 1 <br /> 3 B226813-MSD1 MSD EPA-300.0 02/06/26 02/06/2612:19 OAE IC12 1 <br /> 4 B227603-DUP1 DUP EPA-351.2 02/20/26 02/23/2614:27 JMH2 SC-1 1 <br /> 5 B227603-MS1 MS EPA-351.2 02/20/26 02/23/2614:27 JMH2 SC-1 1 <br /> 6 B227603-MSD1 MSD EPA-351.2 02/20/26 02/23/2614:29 JMH2 SC-1 1 <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: 1001665019 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 9 of 10 <br />