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Report iris Spike Source <br />Result Analyte <br />RPD Notes Limn Units Level Result <br />ugil 0 0235 104 <br />w,4 I 0.0733 L08 <br />_ <br />u I 0.0735 0.0550 106 <br />012 1 0.0735 0.0550 101 2 <br />Blank (AA21706-BLK I) <br />I,2-Dibromo-3-chloropropane (DBCP) <br />ND <br /> <br />0.0200 <br />LCS (AA21706-BS I ) <br />1 .2-Dibromo-3-chloropropanc (DEICP) 0.0766 0.0200 <br />LCS Dup (AA2 I706-BSD I) <br />l ,2-Dibromo-3-chloropropane (DF3CP) 0.0792 0.0200 <br />Matrix Spike (AA21706-MSI) <br />1 ,2-Dibromo-3-chloropropane (DBCP) 0.133 0.(1200 <br />Matrix Spike Dup (AA2I706-MSD I) <br />1 ,2-Dibrorno-3-chloroprepane (DBCP) 0.129 0.0200 <br />0Analytical Laboratory <br />1435 N Coronado Ave,. Stockton CA. 95204 Phone: (209) 477-0105 <br />It AIN IIIVIROTif 1111 CERTIFICATE OF ANALYSIS <br />Chesney Consulting <br />P. 0. BOX 3794 <br />Turlock, CA 95381 <br />Project Number: 17239 Louise Ave <br />Project Name: Costa Work Order No.: <br />Project Manager: Don Chesney <br />DBCP by EPA Method 504.1 - Quality Control <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 = millitsnlans per Lter = ppm G- Grab Sample <br />ugl —micrograms per Liter pph C-Composite Sample <br />DLR Detection Linnifor Purpose of Reporting. <br />Erceptional sample matrices or interferences mar <br />result in higher detection limits <br />MCL- Maximum contaminant level (Ma) 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 />Comp-Grab- Composite of 4 Groh Sample during 24hrs Grab <br />period and composite into I sample prior analysis <br />MMO-MUG-P/A - Total Coliform and E.COli Test in Drinking Water by MMO-MliG, using Standard Method 22nd Edition. <br />The State Board of Health requires that bacteriological results must be 'ABSENCE: or less than I I (for MTF method) to meet drinking water requirements. <br />4c4(4.eatz_ <br />Approved By <br />Precision Enviro-Tech. <l> California F.LAP Cert. #2387 <br />Page 6 of 7