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Laboratories, Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Project: Forward Landfill-Monthly Reported: 12/10/2009 15:29 <br /> 16885 W. Bernardo Drive Project Number: [none] <br /> San Diego, CA 92127 Project Manager: Bill Lopez <br /> Water Analysis (General Chemistry) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Lab Quals <br /> Calcium BSL0006 Duplicate 0915645-01 87.486 89.784 mg/L 2.6 20 <br /> Matrix Spike 0915645-01 87.486 98.968 10.204 mg/L 113 75-125 <br /> Matrix Spike Duplicate 0915645-01 87.486 100.92 10.204 mg/L 15.7 132 20 75-125 A03 <br /> Magnesium BSL0006 Duplicate 0915645-01 43.415 44.678 mg/L 2.9 20 <br /> Matrix Spike 0915645-01 43.415 55.608 10.204 mg/L 119 75-125 <br /> Matrix Spike Duplicate 0915645-01 43.415 55.623 10.204 mg/L 0.1 120 20 75-125 <br /> Sodium BSL0006 Duplicate 0915645-01 46.883 47.534 mg/L 1.4 20 <br /> Matrix Spike 0915645-01 46.883 57.774 10.204 mg/L 107 75-125 <br /> Matrix Spike Duplicate 0915645-01 46.883 58.357 10.204 mg/L 5.2 112 20 75-125 <br /> Potassium BSL0006 Duplicate 0915645-01 7.3823 7.5171 mg/L 1.8 20 <br /> Matrix Spike 0915645-01 7.3823 18.177 10.204 mg/L 106 75-125 <br /> Matrix Spike Duplicate 0915645-01 7.3823 18.511 10.204 mg/L 3.0 109 20 75-125 <br /> Total Dissolved Solids @ 180 C BSL0351 Duplicate 0915619-01 825.00 830.00 mg/L 0.6 10 <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.bclabs.com Page 15 of 27 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />