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Maoo n THRO—M CERTIFICATE OFANALYSIS <br /> Analytical Laboratory <br /> 3935 N.Coronado Ave,Stockton CA.95204 Phone:(209)477-8105 <br /> Dillon&Murphy Project Number: DM <br /> P.O.BOX 2180 Project Name: Pacheco Work Order No.: <br /> Lodi,CA 95241 <br /> Project Manager: Mike Toy <br /> Conventional Chemistry Parameters by APHA/EPA Methods-Quality Control <br /> Reporting Spike Source <br /> Analyte Result Limit Units Level Result %REC RPD Notes <br /> Blank(AH91404-BLK1) <br /> Nitrate as N ND 0.40 mg/L <br /> LCS(AH91404-BSI) <br /> Nitrate as N 1.8 0.40 mg/L 1.81 101 <br /> LCS Dup(AH91404-BSD1) <br /> Nitrate as N 1.8 0.40 mg/L 1.81 99 2 <br /> Matrix Spike(AH91404-MSI) <br /> Nitrate as N 2.0 0.40 mg/[. 1.88 0.21 93 <br /> Matrix Spike Dup(AH91404-MSDI) <br /> Nitrate as N 2.0 0.40 mg/L 1 81 0.21 94 0.6 <br /> Reference(AH91404-SRMl) <br /> Nitrate asN 1.1 0.40 mg/L 0 91� 112 <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 repotting limit. <br /> mgt=milligrams per Liter-ppm G-Grab Sample Comp-Grab-Composite of 4 Grab Sample during 24hrs Grab <br /> ugiL=micrograms per Liter=ppb C-Composite Sample period and composite into I 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.I(for MTF method)to meet drinking water requirements. <br /> Approved By <br /> Precision Enviro-Tech. o California D.O.H.S.Cert.#2387 <br /> Page 4of5 <br />