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pRTUNQR TN© Q CERTIFICATE OFANALYSIS <br /> Analytical Laboratory <br /> (D 3935 N.Coronado Ave,Stockton CA.95204 Phone:(209)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(AA20611-BLK1) <br /> Oil&Grease(HEM) ND 3.0 mg/L <br /> LCS(AA20611-BS1) <br /> Oil&Grease(HEM) 40 3.0 mg/L 40.0 100 <br /> Blank(AA20616-BLK1) <br /> Biochemical Oxygen Demand ND 2.0 mg/L <br /> Duplicate(AA20616-DUPl) <br /> Biochemical Oxygen Demand 470 2.0 mg/L 430 8 <br /> Reference(AA20616-SRMl) <br /> Biochemical Oxygen Demand 190 2.0 mg/L 198 96 <br /> Blank(AA21012-BLK1) <br /> Total Suspended Solids(TSS) ND 1.0 mg/L <br /> LCS(AA21012-BS1) <br /> Total Suspended Solids(TSS) 1000 1.0 mg/L 1000 100 <br /> Duplicate(AA21012-DUPl) <br /> Total Suspended Solids(TSS) 780 1.0 mg/L 780 0.6 <br /> Blank(AA21112-BLK1) <br /> Cyanide(total) ND 0.010 mg/L <br /> LCS(AA21112-BS1) <br /> Cyanide(total) 0.49 0.010 mg/L 0.500 98 <br /> LCS Dup(AA21112-BSD1) <br /> Cyanide(total) 0.50 0.010 mg/L 0.500 100 2 <br /> Matrix Spike(AA21112-MS1) <br /> Cyanide(total) 0.50 0.010 mg/L 0.500 ND 100 <br /> (�z/-Iilf� <br /> Approved By <br /> Precision Enviro-Tech. — California D.O.H.S.Cert.#2387 <br /> Page 6 of 21 <br />