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PRTMOH TH p 0 ITCH CERTIFICATE OFANALYSIS <br /> Analytical Laboratory <br /> 3935 N.Coronado Ave,Stockton CA.95204 Phone:(209)477-8105 <br /> Chesney Engieering,Inc Project Number: [none] <br /> P.O.BOX 3794 Project Name: Thorton Chevron Work Order No.: <br /> Turlock,CA 95381 <br /> Project Manager: Don Chesney <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(A151208-MS1) <br /> Nitrite as N 0.997 0.400 mg/L 1.00 ND 100 <br /> Nitrate as N 16.4 0.400 10.0 6.81 96 <br /> Matrix Spike Dup(AI51208-MSD1) <br /> Nitrite as N 1.05 0.400 mg/L 1.00 ND 105 5 <br /> Nitrate as N 16.8 0.400 10.0 6.81 100 3 <br /> Reference(AI51208-SRMl) <br /> Nitrate as N 2.07 0.400 mg/L 2.26 92 <br /> Blank(AI51501-BLK1) <br /> Ammonia as N ND 0.60 mg/L <br /> LCS(A151501-BS1) <br /> Ammonia as N 9.85 0.60 mg/L 10.0 98 <br /> LCS Dup(A151501-BSD1) <br /> Ammonia as N 9.34 0.60 mg/L 10.0 93 5 <br /> Matrix Spike(A151501-MS1) <br /> Ammonia as N 134 6.00 mg/L 10.0 125 90 <br /> Matrix Spike Dup(A151501-MSDI) <br /> Ammonia as N 136 6.00 mg(L 10.0 125 110 1 <br /> Precision Enviro-Tech. o California ELAP Cert.#2387 <br />