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pQQ.qDO TW0R0=4TCU CERTIFICATE OFANALYSIS <br /> Analytical Laboratory <br /> 3935 N.Coronado Ave,Stockton CA.95204 Phone:(209)4774103 <br /> Chesney Consulting Project Number: Van Groningen(CVG) <br /> P.O.BOX 3794 Project Name: Van Groningen(CVG) Work Order No.: <br /> Turlock,CA 95381 <br /> Project Manager: Don Chesney <br /> EDB and DBCP by EPA Method 504.1-Quality Control <br /> Reporting Spike Source <br /> Analyte Result Limit Units Level Result %REC RPD Notes <br /> Blank(AH10407-BLKI) <br /> 1,2-Dibromo-3-chloropropane(DBCP) ND 0.0200 ug/1 <br /> 1,2-Dibromoethane(EDB) ND 0.0100 " <br /> LCS(AH10407-BS1) <br /> 1,2-Dibromo-3-chloropropane(DBCP) 0.117 0.0200 ug/1 0.147 80 <br /> 1,2-Dibromoethane(EDB) 0.112 0.0100 0.147 76 <br /> LCS Dup(AH10407-BSDI) <br /> 1,2-Dibromo-3-chloropropane(DBCP) 0.109 0.0200 ug/I 0.143 76 8 <br /> 1,2-Dibromoethane(EDB) 0.115 0.0100 0.143 80 2 <br /> Matrix Spike(AH 10407-MS 1) <br /> 1,2-Dibromo-3-chloropropane(DBCP) 0.114 0.0200 u9/1 0.147 ND 78 <br /> 1,2-Dibromoethane(EDB) 0.118 0.0100 0.147 ND 80 <br /> Matrix Spike Dup(AH10407-MSDI) <br /> 1,2-Dibromo-3-chloropropane(DBCP) 0.118 0.0200 ug l 0.147 ND 81 4 <br /> 1,2-Dibromoethane(EDB) 0.121 0.0100 0.147 ND 83 3 <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 /> mg/L=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 l 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 /> <;4/40,4� <br /> Approved By <br /> Precision Enviro-Tech. o Califomia ELAP Cert.#2387 <br /> Page 6 of 7 <br />