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aceAna/ytica/ <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 12/15/2025 16:34 <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 /> 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: B223380 Used client sample: N <br /> Nitrate as NO3 DUP 2520508-02 43.763 43.759 mg/L 0.0 10 1 <br /> MS 2520508-02 43.763 66.638 22.358 mg/L 102 80-120 2 <br /> MSD 2520508-02 43.763 66.669 22.358 mg/L 0.0 102 10 80-120 3 <br /> QC Batch ID: B223495 Used client sample: Y-Description: Compost Pond, 11/25/2025 14:03 <br /> Total Dissolved Solids @ 180 C DUP 2520507-01 1080.0 1092.0 mg/L 1.1 10 4 <br /> Fixed Dissolved Solids DUP 2520507-01 704.00 720.00 mg/L 2.2 20 5 <br /> QC Batch ID: B223771 Used client sample: N <br /> Total Kjeldahl Nitrogen DUP 2520383-12 0.12330 ND mg/L 20 6 <br /> MS 2520383-12 0.12330 2.0691 2.0000 mg/L 97.3 90-110 7 <br /> MSD 2520383-12 0.12330 2.0984 2.0000 mg/L 1.4 98.8 20 90-110 8 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B223380-DUP1 DUP EPA-300.0 11/25/25 11/26/25 01:44 OAE IC9 1 <br /> 2 B223380-MS1 MS EPA-300.0 11/25/25 11/26/25 01:57 OAE IC9 1.010 <br /> 3 B223380-MSD1 MSD EPA-300.0 11/25/25 11/26/25 02:10 OAE IC9 1.010 <br /> 4 B223495-DUP1 DUP EPA-160.1 12/01/25 12/01/2513:11 RLH MANUAL 4 <br /> 5 B223495-DUP1 DUP EPA-160.4 12/01/25 12/01/2513:11 RLH MANUAL 4 <br /> 6 B223771-DUP1 DUP EPA-351.2 12/05/25 12/05/2515:19 JMH2 SC-1 1 <br /> 7 B223771-MS1 MS EPA-351.2 12/05/25 12/05/2515:19 JMH2 SC-1 1 <br /> 8 B223771-MSD1 MSD EPA-351.2 12/05/25 12/05/2515:20 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 parry interpretation. <br /> Report ID: 1001642043 4100 Atlas Court Bakersfield, CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 9 of 10 <br />