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4DSequoia 819 Striker Avenue, Suite 8 <br />- Sacramento, CA 95834 <br />TQFAnalytical FAX (916) 921-9600 <br />(916) 921:0 100 <br />DataualitY Objectives/Sequoia Analytical - Sacramento <br />Method Analyte MDL MRL Units <br />Total Metals by EPA 6000/7000 Series Methods <br />'in Water <br />EPA 7196A Hexavalent Chromium 0.0018 0.005 mg/I <br />IMethod Analyte MDL MRL Units <br />EPA 200.7 <br />Total Metals by EPA 200 Series Methods <br />0.011 <br />0.05 mg/I <br />EPA 200.7 <br />in Water <br />0.0018 <br />0.005 mg/I <br />EPA 200.7 <br />Chromium <br />EPA 200.7 <br />Aluminum <br />0.014 <br />0.05 mg/I <br />0.0014 <br />EPA 200.7 <br />EPA 200.7 <br />Antimony <br />Arsenic <br />0.0069 <br />0.0096 <br />0.05 mg/I <br />0.05 mg/I <br />0.005 mg/I <br />0.02 mg/I <br />EPA 200.7 <br />Barium <br />0.0014 <br />0.05 mg/I <br />0.05 mg/I <br />EPA 200.7 <br />Beryllium <br />0.0006 <br />0.005 mg/I <br />EPA 200.7 <br />Boron <br />0.011 <br />0.05 mg/I <br />EPA 200.7 <br />Cadmium <br />0.0018 <br />0.005 mg/I <br />EPA 200.7 <br />Chromium <br />0.0028 <br />0.005 mg/I <br />EPA 200.7 <br />Cobalt <br />0.0014 <br />0.02 mg/I <br />200.7 <br />EPA 200.7 <br />Copper <br />0.0021 <br />0.005 mg/I <br />0.0024 0.02 mg/I <br />EPA 200.7 <br />Iron <br />0.0032 <br />0.01 mg/I <br />Mercury <br />EPA 200.7 <br />Lead <br />0.0099 <br />0.05 mg/I <br />EPA 200.7 <br />EPA 200.7 <br />Manganese <br />Nickel <br />0.0005 <br />0.0053 <br />0.005 mg/I <br />0.02 mg/I <br />EPA 200.7 <br />Selenium <br />0.018 <br />0.05 mg/I <br />EPA 200.7 <br />Silver <br />0.0013 <br />0.005 mg/I <br />200.7 <br />Thallium <br />0.012 0.05 mg/I <br />'EPA <br />EPA 200.7 <br />Vanadium <br />0.0024 0.02 mg/I <br />EPA 200.7 <br />Zinc <br />0.0013 0.005 mg/I <br />EPA 245.1 <br />Mercury <br />mg/I <br />Data Quality Objectives/Sequoia Analytical - Walnut Creek <br />1 <br />Method Analyte MDL MRL Units <br />'Total Metals by EPA 200 Series Methods <br />in Water <br />EPA 200.7 Tin 0.1264 0.20 mg/I <br />1 Page 1 of 2 <br />