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Laboratories Inc. . <br /> Environmental Testing Laboratory Since 1949 <br /> w Reported: 06/21/2012 13:52 <br /> 0 Promenade Circle,Suite 320 Project: Corral Hollow LF,SJ County-5 year <br /> Sacramento,CA 95834 Project Number. 139881 <br /> Project Manager: Sheila Richgels <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: BVE1675 Used client sample: N <br /> Total Dissolved Solids @ 180 C DUP 1209237-01 1175.0 1185.0 mg/L 0.8 10 <br /> QC Batch ID: BVE1690 Used client sample: N <br /> Chloride DUP 1209282-01 82.515 82.647 mg/L 0.2 10 <br /> MS 1209282-01 82.515 135.49 50.505 mg/L 105 80-120 <br /> MSD 1209282-01 82.515 136.60 50.505 mg/L 0.8 107 10 80-120 <br /> Nitrate as N DUP 1209282-01 0.032000 0.037000 mg/L 14.5 10 J,A02 <br /> MS 1209282-01 0.032000 5.1919 5.0505 mg/L 102 80-120 <br /> MSD 1209282-01 0.032000 5.2505 5.0505 mg/L 1.1 103 10 80-120 <br /> Sulfate DUP 1209282-01 172.85 171.66 mg/L 0.7 10 <br /> MS 1209282-01 172.85 276.95 101.01 mg/L 103 80-120 <br /> MSD 1209282-01 172.85 278.47 101.01 mg/L 0.5 105 10 80-120 <br /> QC Batch ID: BVE1703 Used client sample: N <br /> Ived Calcium DUP 1209237-01 51.111 50.475 mg/L 1.3 20 <br /> MS 1209237-01 51.111 60.474 10.204 mg/L 91.8 75-125 <br /> MSD 1209237-01 51.111 60.573 10.204 mg/L 0.2 92.7 20 75-125 <br /> Dissolved Magnesium DUP 1209237-01 31.381 31.369 mg/L 0.0 20 <br /> MS 1209237-01 31.381 41.795 10.204 mg/L 102 75-125 <br /> MSD 1209237-01 31.381 41.862 10.204 mg/L 0.2 103 20 75-125 <br /> Dissolved Sodium DUP 1209237-01 384.31 377.65 mg/L 1.7 20 <br /> MS 1209237-01 384.31 386.21 10.204 mg/L 18.7 75-125 A03 <br /> MSD 1209237-01 384.31 386.84 10.204 mg/L 0.2 24.8 20 75-125 A03 <br /> Dissolved Potassium DUP 1209237-01 1.4619 1.4400 mg/L 1.5 20 <br /> MS 1209237-01 1.4619 12.425 10.204 mg/L 107 75-125 <br /> MSD 1209237-01 1.4619 12.466 10.204 mg/L 0.3 108 20 75-125 <br /> QC Batch ID: BVE1711 Used client sample: N <br /> Bicarbonate DUP 1209289-04 602.85 606.56 mg/L 0.6 10 <br /> Carbonate DUP 1209289-04 ND ND mg/L 10 <br /> Total Alkalinity as CaCO3 DUP 1209289-04 494.43 497.47 mg/L 0.6 10 <br /> QC Batch ID: BVE1835 Used client sample: N <br /> Total Sulfide DUP 1209121-01 ND ND mg/L 10 <br /> MS 1209121-01 ND 0.41181 0.50000 mg/L 82.4 80-120 <br /> MSD 1209121-01 ND 0.41528 0.50000 mg/L 0.8 83.1 10 80-120 <br /> QC Batch ID: BVE1952 Used client sample: N <br /> Total Cyanide DUP 1209252-01 ND ND mg/L 10 <br /> MS 1209252-01 ND 0.095192 0.10000 mg/L 95.2 90-110 <br /> MSD 1209252-01 ND 0.096780 0.10000 mg/L 1.7 96.8 10 90-110 <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.BC Laboratories,Inc.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.bciabs.com Page 64 of 70 <br />