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Arcadis- SLO <br />4119 Broad Street Suite 210 <br />San Luis Obispo, CA 93401 <br />Project: <br />Project Number: <br />Project Manager: <br />Forward Landfill <br />Forward Landfill 1Q24 30167676.01 <br />Ari Terry <br />Reported:03/04/2024 9:14 <br />Quality Control Report - Precision & Accuracy <br />Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals <br />Source Spike Percent Percent <br />Control Limits <br />Metals Analysis <br />Source Lab <br />R# <br />QC Batch ID: B183023 Used client sample: N <br />Dissolved Manganese DUP ND 20ND2401701-03 ug/L 7 <br />MS 545.80 75 - 125ND510.20 1072401701-03 ug/L 8 <br />MSD 545.15 0.1 20 75 - 125ND510.20 1072401701-03 ug/L 9 <br />Dissolved Nickel DUP ND 20ND2401701-03 ug/L 7 <br />MS 424.80 75 - 125ND408.16 1042401701-03 ug/L 8 <br />MSD 446.55 5.0 20 75 - 125ND408.16 1092401701-03 ug/L 9 <br />Dissolved Selenium DUP ND 20ND2401701-03 ug/L 7 <br />MS 211.22 75 - 125ND204.08 1032401701-03 ug/L 8 <br />MSD 216.48 2.5 20 75 - 125ND204.08 1062401701-03 ug/L 9 <br />Dissolved Silver DUP ND 20ND2401701-03 ug/L 4 <br />MS 39.415 75 - 125ND102.04 38.6 Q032401701-03 ug/L 5 <br />MSD 42.046 6.5 20 75 - 125ND102.04 41.2 Q032401701-03 ug/L 6 <br />Dissolved Tin DUP ND 20ND2401701-03 ug/L 7 <br />MS 233.35 75 - 125ND204.08 1142401701-03 ug/L 8 <br />MSD 235.49 0.9 20 75 - 125ND204.08 1152401701-03 ug/L 9 <br />Dissolved Thallium DUP ND 20ND2401701-03 ug/L 7 <br />MS 453.72 75 - 125ND408.16 1112401701-03 ug/L 8 <br />MSD 458.40 1.0 20 75 - 125ND408.16 1122401701-03 ug/L 9 <br />Dissolved Vanadium DUP 18.747 1.0 2018.5632401701-03 ug/L 7 <br />MS 238.54 75 - 12518.563 204.08 1082401701-03 ug/L 8 <br />MSD 247.06 3.5 20 75 - 12518.563 204.08 1122401701-03 ug/L 9 <br />Dissolved Zinc DUP ND 20ND2401701-03 ug/L 7 <br />MS 1000.5 75 - 125ND510.20 196 Q032401701-03 ug/L 8 <br />MSD 1039.5 3.8 20 75 - 125ND510.20 204 Q032401701-03 ug/L 9 <br />QC Batch ID: B183273 Used client sample: N <br />Dissolved Mercury DUP 0.036250 0 200.036250 J2401811-01 ug/L 10 <br />MS 1.1575 70 - 1300.036250 1.0000 1122401811-01 ug/L 11 <br />MSD 1.0450 10.2 20 70 - 1300.036250 1.0000 1012401811-01 ug/L 12 <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 />4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 43 of 55Report ID: 1001493457