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Analytical. Laboratory <br />3935 N. Coronado Ave, Stockton CA. 95204 Phone: (209) 477-8105 <br />Atlenfion: Graig Walters. <br />Premier Finishing <br />7910 S. Longe Street <br />Stockton, CA 95206-3933 <br />CERTIFICATE OFANALYSIS <br />Tlnfrsday, May 31, 2018 <br />Report Page 8 eJ'4 <br />Metals by EPA 200 Series Methods - Quality Control <br />Precision Enviro-Tech <br />Reporting Spike Source %REC RPD <br />atalyte Result Limit Units Level Result %REC Limits RPD Limit totes <br />Batch AE83104 - EPA 3020A <br />Reference (AE83104-SRM1) <br />Prepared & Analyzed: 31 -May -18 <br />Vanadium <br />0.607 <br />0.0100 <br />mg/L. 0.622 98 <br />85.115 <br />Antimony <br />0.028 <br />0.010 <br />0.0286 .97 <br />85-115 <br />Selenium <br />0.022 <br />0.010 <br />0.0219 99 <br />85.115 <br />Arsenic <br />0.0062 <br />0.010 <br />0,00700 89 <br />85-115 <br />wgl, - mi!ligrnmsparl.iier-ppm <br />ug 1. - micmgram.r per Liter - ppb <br />RBSPECTTULLY SUBMITTED, <br />Jonathan H.V. Le <br />Laboratory Director <br />DIS - Delection thnif fm -Purpose ofRolmning. <br />Lrcepilonal seuple watrices or futefero wes• cony <br />ntsuh in higher defection limits. <br />G. Grab Sample <br />C-Coniiwshe Sample <br />Comp -Grab- C'omlwsim ()f4 Qtnh .Sample d;tdng2ahrc Grab period and <br />composite into I.rample Piiorannlysic <br />L`LAP 1Vi). -881 entail: jlrttle�t),peti�icr'b:eom 4e%: pe1AYb,cotll Fay: (2119) S4.6-7497 <br />