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pRTUNQR TN© Q CERTIFICATE OFANALYSIS <br /> Analytical Laboratory <br /> (D 3935 N.Coronado Ave,Stockton CA.95204 Phone:(269)477-8195 <br /> UniFirst Corporation Project Number: UFC <br /> 819 N.Hunter Street Project Name: Effluent(1 per Week&2 per Week) Work Order No.: <br /> Stockton,CA 95205 Project Manager: William Geary <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 /> Matrix Spike Dup(AA22725-MSDI) <br /> Methylene Blue Active Substances(MBAS) 7.97 0.100 mg/L 4.00 4.19 95 2 <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 /> mglL=milligrams per Liter=ppm G-Grab Sample Comp-Grab-Composite of 4 Grab Sample during 24hrs Grab period and <br /> uglL=micrograms per Liter=ppb C-Composite Sample 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 1.1(for MTF method)to meet drinking water requirements. <br /> CA144� <br /> Approved By <br /> Precision Enviro-Tech. — California D.O.H.S.Cert.#2387 <br /> Page 13 of 21 <br />