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PRT(OROH THRCKM <br /> Analytical Laboratory <br /> 3935 N.Coronado Ave,Stockton CA,95204 Phone:(209)477-8105 <br /> Attention: Steven Hipes <br /> 1963 S.Argonalt <br /> Stockton,CA 95206 <br /> Quality Control <br /> (Continued) <br /> Metals by 6000/7000 Series with Citrate Buffer Extraction Procedure(Continued) <br /> Reporting Spike Source %REC RPD <br /> Analyte ResultQual Limit Units Level Result %REC Limits RPD Limit <br /> Batch: A781704- Title 22-STLC citrate Buffer(Continued) <br /> LCS(A)81704-BS1) Prepared&Analyzed: 17-Oct-18 <br /> Cobalt 0.0538 0.0100 mg/L 0.0500 108 80-120 <br /> Cadmium 0.0527 0.0100 mg/L 0.0500 105 80-120 <br /> Thallium 0.0535 0.0100 mg/L 0.0500 107 80-120 <br /> Copper 0.0527 0.0100 mg/L 0.0500 105 80-120 <br /> Duplicate(A781704-DUPl) Source:8092611-01 Prepared&Analyzed: 17-Oct-18 <br /> Silver ND 0.0100 mg/L ND 200 <br /> Zinc 0.158 0.0200 mg/L 0.152 4 200 <br /> Mercury ND 0.00200 mg/L ND 200 <br /> Arsenic 0.0237 0.0100 mg/L 0.0220 7 20 <br /> Barium 0.0436 0.0100 mg/L 0.0407 7 20 <br /> Beryllium ND 0.0100 mg/L ND 20 <br /> Cadmium ND 0.0100 mg/L ND 20 <br /> Cobalt 0.0579 0.0100 mg/L 0.0537 7 200 <br /> Chromium 2.64 0.0100 mg/L 2.40 10 200 <br /> Vanadium 0.0512 0.0100 mg/L 0.0484 5 200 <br /> Copper 0.0495 0.0100 mg/L 0.0440 12 20 <br /> Molybdenum 0.339 0.0100 mg/L 0.321 6 200 <br /> Nickel 0.898 0.0100 mg/L 0.822 9 200 <br /> Thallium ND 0.0100 mg/L ND 200 <br /> Lead ND 0.0100 mg/L ND 20 <br /> Antimony ND 0.0100 mg/L ND 200 <br /> Selenium ND 0.0100 mg/L ND 200 <br /> Matrix Spike(A781704-MS1) Source:8092611-01 Prepared&Analyzed: 17-Oct-18 <br /> Thallium 0.0911 0.0100 mg/L 0.100 ND 91 75-125 <br /> Molybdenum 0.442 0.0100 mg/L 0.100 0.321 121 75-125 <br /> Zinc 0.233 0.0200 mg/L 0.100 0.152 81 70-125 <br /> Beryllium 0.0935 0.0100 mg/L 0.100 ND 93 75-125 <br /> Chromium 2.77QM-4X 0.0100 mg/L 0.100 2.40 373 75-125 <br /> Vanadium 0.143 0.0100 mg/L 0.100 0.0484 95 75-125 <br /> Nickel 0.929 0.0100 mg/L 0.100 0.822 107 75-125 <br /> The contents of this report apply to the sample(s)analyzed in accordance with the chain of custody document. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan H.V.Le,Laboratory Director <br /> Page 4 of 8 <br /> ELAP No. 2.187 entail:ihvle(c�,petallab.corn Web:petollab.cont Phone: (209) 477-8105 <br />