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PRM20H W o o MR, <br />Analytical Laboratory <br />3935 N. Coronado Ave, Stockton CA. 95204 Phone: (209) 477-8105 <br />CERTIFICATE OFANALYSIS <br />Dillon & Murphy Project Number: [none] <br />P.O. BOX 2180 Project Name: Holdberg 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 />nalyte Result Limit Units Level Result %REC RPD Notes <br />Blank (AB20414-BLK1) <br />Nitrate as N <br />ND <br />0.400 <br />mg/L <br />LCS (AB20414-BSI) <br />Nitrate as N <br />2.13 <br />0.400 <br />mg/L <br />2.26 <br />94 <br />LCS Dup (AB20414-BSD1) <br />Nitrate as N <br />2.26 <br />0.400 <br />mg/L <br />2.26 <br />100 6 <br />Matrix Spike (AB20414-MSI) <br />Nitrate as N <br />3.66 <br />0.400 <br />mg/L <br />2.82 0.986 <br />95 <br />Matrix Spike Dup (AB20414-MSD1) <br />Nitrate as N <br />3.70 <br />0.400 <br />mg/L <br />2.82 0.986 <br />96 1 <br />Reference (AB20414-SRMl) <br />Nitrate as N <br />8.60 <br />0.400 <br />mg/L <br />9.03 <br />95 <br />Approved By <br />Precision Enviro-Tech. o California ELAP Cert. #2387 <br />Page 5 of 7 <br />