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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Reported: 12/07/2017 14:47 <br /> 11415 W.Bernardo Ct,Ste 220 Project: Forward Landfill-Monthly A.S.Tower <br /> San Diego,CA 92127 Project Number: [none] <br /> Project Manager: Bill Lopez <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 <br /> QC Batch ID: B K0720 Used client sample: N <br /> pH DUP 1734019-01 7.6400 7.6200 pH Units 0.3 20 <br /> QC Batch ID: B[L0204 J Used client sample: N <br /> Total Dissolved Solids @ 180 C DUP 1733979-01 32400 32700 mg/L 0.9 10 <br /> QC Batch ID: B[L0235 J Used client sample: N <br /> Dissolved Calcium DUP 1733993-01 30.131 30.434 mg/L 1.0 20 <br /> MS 1733993-01 30.131 39.960 10.204 mg/L 96.3 75-125 <br /> MSD 1733993-01 30.131 39.545 10.204 mg/L 1.0 92.3 20 75-125 <br /> Dissolved Magnesium DUP 1733993-01 4.6420 4.6270 mg/L 0.3 20 <br /> MS 1733993-01 4.6420 17.197 10.204 mg/L 123 75-125 <br /> MSD 1733993-01 4.6420 16.242 10.204 mg/L 5.7 114 20 75-125 <br /> Dissolved Sodium DUP 1733993-01 83.563 81.841 mg/L 2.1 20 <br /> MS 1733993-01 83.563 113.61 10.204 mg/L 294 75-125 A03 <br /> 40 MSD 1733993-01 83.563 102.56 10.204 mg/L 10.2 186 20 75-125 A03 <br /> Dissolved Potassium DUP 1733993-01 11.081 11.160 mg/L 0.7 20 <br /> MS 1733993-01 11.081 21.639 10.204 mg/L 103 75-125 <br /> MSD 1733993-01 11.081 21.367 10.204 mg/L 1.3 101 20 75-125 <br /> The results in this report apply to the samples analv.ed in accordance with the chain of custody document.This analytical report must he reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third parry interpretation. <br /> ReportID: 1000680253 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bc[abs.com Page 18 of 23 <br />