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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(AA21408-BLK1) <br /> Oil&Grease(HEM) ND 3.0 mg/L <br /> LCS(AA21408-BS1) <br /> Oil&Grease(HEM) 40 3.0 mg/L 40.0 100 <br /> Blank(AA21707-BLK1) <br /> Total Suspended Solids(TSS) ND 1.0 mg/L <br /> LCS(AA21707-BSI) <br /> Total Suspended Solids(TSS) 1000 1.0 mg/L 1000 100 <br /> Duplicate(AA21707-DUPl) <br /> Total Suspended Solids(TSS) 980 1.0 mg/L 990 1 <br /> Blank(AA21804-BLK1) <br /> Cadmium ND 0.0050 mg/L <br /> Mercury ND 0.0010 <br /> Lead ND 0.0050 <br /> Nickel ND 0.0050 <br /> Zinc ND 0.020 <br /> Chromium ND 0.010 <br /> Copper ND 0.050 <br /> Arsenic ND 0.010 <br /> Silver ND 0.010 <br /> LCS(AA21804-BS1) <br /> Cadmium 0.050 0.0050 mg/L 0.0500 101 <br /> Lead 0.051 0.0050 0.0500 101 <br /> Mercury 0.0050 0.0010 0.00500 101 <br /> Chromium 0.049 0.010 0.0500 97 <br /> Copper 0.047 0.050 0.0500 95 <br /> Zinc 0.048 0.020 0.0500 95 <br /> Nickel 0.048 0.0050 0.0500 96 <br /> Arsenic 0.050 0.010 0.0500 100 <br /> (�z/-Iilf� <br /> Approved By <br /> Precision Enviro-Tech. — California D.O.H.S.Cert.#2387 <br /> Page 8 of 21 <br />