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3933 N. Coronado Ave, Stockton CA. 93204 Phone: (209) 477-8105 <br />II (0 1 C2)Analytical Laboratory <br />PDICSIOR fYD CERTIFICATE OF ANALYSIS <br />Chesney Consulting <br />P.O. BOX 3794 <br />Turlock, CA 95381 <br />Project Number: Chevron -Thornton <br />Project Name: Chevron -Thornton Work Order No.: <br />Project Manager: Don Chesney <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 ug/L micrograms per Liter ppb C-composite Sample <br />DLR = Detection Limit for Purpose of Reporting <br />Exceptional sample matrices or interferences may <br />result in higher detection limits. <br />AWL- 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 Grab Sample during 24hrs Grab <br />period and composite into 1 sample prior analysis <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 I. I (for MTF method) to meet drinking water requirements. <br />Precision Enviro-Tech. <> California ELAP Cert. #2387 <br />Page 9 of 10