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pRTUNQR TN© Q CERTIFICATE OFANALYSIS <br /> Analytical Laboratory <br /> (D 3935 N.Coronado Ave,Stockton CA.95204 Phone:(269)477-8195 <br /> UniFirst Corporation Project Number: UFC <br /> 819 N.Hunter Street Project Name: Effluent(1 per Week&2 per Week) Work Order No.: <br /> Stockton,CA 95205 Project Manager: William Geary <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 /> Blank(AA20413-BLK1) <br /> Methylene Blue Active Substances(MBAS) ND 0.100 mg/L <br /> LCS(AA20413-BS1) <br /> Methylene Blue Active Substances(MBAS) 1.06 0.100 mg/L 1.00 106 <br /> LCS Dup(AA20413-BSD1) <br /> Methylene Blue Active Substances(MBAS) 1.06 0.100 mg/L 1.00 106 0.4 <br /> Blank(AA20510-BLK1) <br /> Biochemical Oxygen Demand ND 2.0 mg/L <br /> Duplicate(AA20510-DUPl) <br /> Biochemical Oxygen Demand 1700 2.0 mg/L 1700 5 <br /> Reference(AA20510-SRMl) <br /> Biochemical Oxygen Demand 200 2.0 mg/L 198 103 <br /> Blank(AA20512-BLK1) <br /> Total Suspended Solids(TSS) ND 1.0 mg/L <br /> LCS(AA20512-BS1) <br /> Total Suspended Solids(TSS) 1000 1.0 mg/L 1000 100 <br /> Duplicate(AA20512-DUP1) <br /> Total Suspended Solids(TSS) 420 1.0 mg/L 410 2 <br /> Blank(AA20610-BLK1) <br /> Total Dissolved Solids(TDS) ND 1.0 mg/L <br /> Duplicate(AA20610-DUPl) <br /> Total Dissolved Solids(TDS) 1700 1.0 mg/L 1700 U.I <br /> Reference(AA20610-SRM1) <br /> Total Dissolved Solids(TDS) 1000 1.0 mg/L 1000 100 <br /> CA/-Iilf� <br /> Approved By <br /> Precision Enviro-Tech. — California D.O.H.S.Cert.#2387 <br /> Page 5 of 21 <br />