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Laboratories Inc. llkj <br />Environmental Testing Laboratory Since 1949 <br />aw Reported: 02/14/2013 14:28 <br />80 Promenade Circle, Suite 320 Project: Foothill Landfill <br />Sacramento, CA 95834 Project Number: 139867 Leachate <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 />:onstituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br />QC Batch ID: BWB0313 <br />Used client sample: <br />N <br />Total Dissolved Solids @ 180 C <br />DUP 1302489-01 <br />935.00 <br />935.00 <br />mg/L <br />0 <br />10 <br />QC Batch ID: BWB0317 <br />Used client sample: <br />Y - Description: <br />MW -2R, 02/04/2013 11:41 <br />Chloride <br />DUP 1302490-01 <br />4.9580 <br />4.7990 <br />mg/L <br />3.3 <br />10 <br />MS 1302490-01 <br />4.9580 <br />55.436 <br />50.505 <br />mg/L <br />99.9 <br />80-120 <br />MSD 1302490-01 <br />4.9580 <br />55.444 <br />50.505 <br />mg/L <br />0.0 <br />100 <br />10 <br />80-120 <br />Nitrate as N <br />DUP 1302490-01 <br />2.7430 <br />2.7220 <br />mg/L <br />0.8 <br />10 <br />MS 1302490-01 <br />2.7430 <br />7.8061 <br />5.0505 <br />mg/L <br />100 <br />80-120 <br />MSD 1302490-01 <br />2.7430 <br />7.8111 <br />5.0505 <br />mg/L <br />0.1 <br />100 <br />10 <br />80-120 <br />Sulfate <br />DUP 1302490-01 <br />1.5010 <br />1.5090 <br />mg/L <br />0.5 <br />10 <br />MS 1302490-01 <br />1.5010 <br />101.81 <br />101.01 <br />mg/L <br />99.3 <br />80-120 <br />MSD 1302490-01 <br />1.5010 <br />101.75 <br />101.01 <br />mg/L <br />0.1 <br />99.2 <br />10 <br />80-120 <br />QC Batch ID: BWB0461 <br />Used client sample: <br />Y - Description: <br />MW -3, 02/04/2013 12:58 <br />bonate <br />ia <br />DUP 1302490-02 <br />135.60 <br />135.22 <br />mg/L <br />0.3 <br />10 <br />onate <br />DUP 1302490-02 <br />ND <br />ND <br />mg/L <br />10 <br />Total Alkalinity as CaCO3 <br />DUP 1302490-02 <br />111.21 <br />110.90 <br />mg/L <br />0.3 <br />10 <br />QC Batch ID: BWB0472 <br />Used client sample: <br />Y - Description: <br />L-01, 02/04/2013 08:58 <br />Total Calcium <br />DUP 1302491-01 <br />208.19 <br />208.73 <br />mg/L <br />0.3 <br />20 <br />MS 1302491-01 <br />208.19 <br />216.24 <br />10.000 <br />mg/L <br />80.5 <br />75-125 <br />MSD 1302491-01 <br />208.19 <br />214.09 <br />10.DD0 <br />mg/L <br />1.0 <br />59.0 <br />20 <br />75-125 A03 <br />Total Magnesium <br />DUP 1302491-01 <br />96.754 <br />97.118 <br />mg/L <br />0.4 <br />20 <br />MS 1302491-01 <br />96.754 <br />106.04 <br />10.000 <br />mg/L <br />92.9 <br />75-125 <br />MSD 1302491-01 <br />96.754 <br />105.40 <br />10.000 <br />mg/L <br />0.6 <br />86.4 <br />20 <br />75-125 <br />Total Sodium <br />DUP 1302491-01 <br />128.44 <br />127.50 <br />mg/L <br />0.7 <br />20 <br />MS 1302491-01 <br />128.44 <br />139.71 <br />10.000 <br />mg/L <br />113 <br />75-125 <br />MSD 1302491-01 <br />128.44 <br />140.60 <br />10.000 <br />mg/L <br />0.6 <br />122 <br />20 <br />75-125 <br />Total Potassium <br />DUP 1302491-01 <br />7.2131 <br />7.1496 <br />mg/L <br />0.9 <br />20 <br />MS 1302491-01 <br />7.2131 <br />17.835 <br />10.000 <br />mg/L <br />106 <br />75-125 <br />MSD 1302491-01 <br />7.2131 <br />17.628 <br />10.000 <br />mg/L <br />1.2 <br />104 <br />20 <br />75-125 <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 parry. 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.br-labs.com Page 15 of 16 <br />