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p pTUMon WRONG CERTIFICATE OFANALYSIS <br /> Analytical Laboratory <br /> 3935 N.Coronado Ave,Stockton CA.95204 Phone:(209)477-8105 <br /> Associated Tractor Service Project Number: Clean Up <br /> 34 N.Ventura Ave Project Name: Clean Up Work Order No.: <br /> Stockton,CA 95203 <br /> Project Manager. Larry Borell <br /> Metals by 6000/7000 Series with Citrate Buffer Extraction Procedure-Quality Control <br /> Reporting Spike Source <br /> Analyte Result Limit Units Level Result %REC RPD Notes <br /> Blank(AC01105-BLK1) <br /> Lead ND 0.0100 mg/L <br /> LCS(AC01105-BS1) <br /> Lead 0.0519 0.0100 mg/L 0.0500 104 <br /> LCS Dup(AC01105-BSDI) <br /> Lead 0.0536 0.0100 mg/L 0.0500 107 3 <br /> Duplicate(AC01105-DUPI) <br /> Lead 0.639 0.0100 mg/L 0.636 0.4 <br /> Notes and Definitions <br /> Item Definition <br /> Dry Sample results reported on a dry weight basis. <br /> ND Analyte NOT DETECTED at or below the reporting limit. <br /> mg1L=milligrams per Liter=ppm G-Grab Sample Comp-Grab-Composite of 4 Grab Sample during 24hrs Grab <br /> ug/L=micrograms per Liter=ppb C-Composite Sample period and composite into 1 sample prior analysis <br /> DLR=Detection Limit for Purpose of Reporting. <br /> Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> MCL-Maximum contaminant level(MCL)is the highest <br /> concentration of chemicals permitted in drinking water systems <br /> RPD Relative Percent Difference <br /> %REC Percent Recovery <br /> Source Sample that was matrix spiked or duplicated. <br /> MMO-MUG-P/A-Total Coliform and E.Coli Test in Drinking Water by MMO-MUG,using Standard Method 22nd Edition. <br /> The State Board of Health requires that bacteriological results must be'ABSENCE'or less than 1.1(for MTF method)to meet drinking water requirements. <br /> (�4/4w� <br /> Approved By <br /> Precision Enviro-Tech. — California D.O.H.S.Cert.#2387 <br /> Page 4of5 <br />