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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 /> LCS(AA21804-BS1) <br /> Silver 0.048 0.010 mg/L 0.0500 95 <br /> LCS Dup(AA21804-BSD1) <br /> Cadmium 0.052 0.0050 mg/L 0.0500 104 3 <br /> Lead 0.040 0.0050 0.0500 81 22 <br /> Mercury 0.0046 0.0010 0.00500 92 9 <br /> Nickel 0.043 0.0050 0.0500 86 11 <br /> Zinc 0.046 0.020 0.0500 91 4 <br /> Chromium 0.046 0.010 0.0500 92 6 <br /> Copper 0.042 0.050 0.0500 84 12 <br /> Arsenic 0.049 0.010 0.0500 98 2 <br /> Silver 0.051 0.010 0.0500 102 7 <br /> Matrix Spike(AA21804-MSI) <br /> Cadmium 0.10 0.0050 mg/L 0.100 ND 104 <br /> Mercury 0.0045 0.0010 0.00500 ND 91 <br /> Lead 0.079 0.0050 0.100 ND 79 <br /> Copper 0.073 0.050 0.100 ND 73 <br /> Chromium 0.082 0.010 0.100 ND 82 <br /> Zinc 0.088 0.020 0.100 0.0061 82 <br /> Nickel 0.076 0.0050 0.100 0.0013 75 <br /> Arsenic 0.11 0.010 0.100 0.0033 102 <br /> Silver 0.093 0.010 0.100 ND 93 <br /> Matrix Spike Dup(AA21804-MSD1) <br /> Mercury 0.0046 0.0010 mg/L 0.00500 ND 92 2 <br /> Lead 0.082 0.0050 0.100 ND 82 4 <br /> Cadmium 0.10 0.0050 0.100 ND 103 0.7 <br /> Zinc 0.087 0.020 0.100 0.0061 81 1 <br /> Copper 0.073 0.050 0.100 ND 73 0.1 <br /> Chromium 0.082 0.010 0.100 ND 82 0.5 <br /> Nickel 0.078 0.0050 0.100 0.0013 76 2 <br /> Arsenic 0.11 0.010 0.100 0.0033 102 0.1 <br /> Silver 0.090 0.010 0.100 ND 90 3 <br /> Reference(AA21804-SRMl) <br /> Cadmium 0.050 0.0050 mg/L 0.0500 100 <br /> (�z/-Iilf� <br /> Approved By <br /> Precision Enviro-Tech. - California D.O.H.S.Cert.#2387 <br /> Page 9 of 21 <br />