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Result <br />Date <br />I Analyzed <br />LCS Spike MS Spike <br />Blank Conc. LCS% Conc. MS% MSD RSD <br />1412 <br /> 24-Jun-03 ND 11 96.8% 50 96.8% 97.2% <br />C")FrAZUSNO <br />tr <br />[11 <br />illVg XO-TMUI <br />.oett 17 a lytica I Laboaratcory <br />TO: <br />Metropolitan Stevedore Corn <br />P.O.Box 986 <br />Stockton CA 95201 <br />General Inorganic Chemistry <br />CERTIFICATE OF ANALYSIS <br />Monday, July 21, 2003 <br />Sample Information <br />Sample Type: Grab <br />Project Name: Monitoring Well <br />Sample Matrix: Ground Water <br />QA/QC REPORT <br />,tasnrs N <br />Sample ID: 22828-03A <br />;ample Description: MW -3 <br />Date/Time Sampled: 6/23/2003 1:40:00 PM <br />466 <br />ND <br />ND <br />ND <br />mg/L = milligrams per Liter = ppm <br />ug/L = micrograms per Liter = ppb <br />C = Composite G = Grab <br />-Test Parameter <br />y -t <br />Method DLR Unit <br />EPA 300 Sulfate (SO4) mg/L <br />Sulfur EPA 300 1 mg/L <br />0.02 mg/L Dissolved Copper (Cu) EPA 6010B <br />Dissolved Nickel (Ni) EPA 6010B 0.02 mg/L <br />Dissolved Vanadium (V) EPA 6010B 0.02 mg/L <br />Jot athan Mao V. Le, Laboratory Director <br />25-Jun-03 ND 35 94.3% 100 95.0% 101.0% 1.5% <br />25-Jun-03 ND 1 103.0% 0.25 104.0% 102.0% <br />25-Jun-03 ND 1 105.0% 0.25 101.8% 98.2% 0.9% <br />25-Jun-03 ND 1 106.0% 0.25 105.6% 106.4% 0.2% <br />RSD- represent relative percent different (RPD) between duplicates spike of samples <br />or Duplicate of Sample <br />MS/MSD-measure of the percent recovery efficiencies within the matrix <br />LCS- measure of the percent recovery of the Laboratory Control Spike (LCS) <br />DLR- Detection Limit for the Purpose of Reporting. Exceptional sample <br />matrices or interfereneces may result in higher detection limits <br />CC: <br />CAI few Frnminnlinr, nt Page I of - I r 'Wastewater 18th Ed.