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%Awe� N.Wwof <br /> Page: 1 <br /> Precision Enviro-Tech Date: 119/98 <br /> Analytical Laboratory <br /> 2040 E. Harding Way, Suite B Stockton, CA. 95205 <br /> Phone: (2091462-0892 Fax: (209)462-79 <br /> Certificate of Analysis <br /> William Little <br /> Advanced GeoEnvironmental, Inc. Customer ID: ADGEO <br /> 4005 N. Wilson Way <br /> Stockton CA. 95205 <br /> Sample Information <br /> Lab Sample ID: PE1559-03A Sample Matrix: Soil <br /> Sample Description: Stockpile A-3 Sampler Name: Jonathan Le <br /> Date Sampled: 12/18/97 1:05:00 PM Project Name: 430 S. EI Dorado St. <br /> Digestion Method: EPA3050 <br /> Analytical Result <br /> Parameter Method DLR Units Result <br /> Lead (Pb) EPA 7421 0.2 mg/Kg No <br /> Respectfully submitted, <br /> La or tory Director <br /> Hao V. Le, B.S <br /> ND- None Detected DLR-Detection Limit for the Purpose of Reportingconversions: <br /> mg/L- milligrams/Liter = ppm Exceptional sample matrices or Interferences 1 ppm=1000 ppb <br /> mglkg-milligrams/kilogram = ppm may result in higher detection limits 1 ppb=0.001 ppm <br /> ug/kq-micrograms/kilogram = ppb DLR=DLR X Dilution Factor < DLR = Trace of Analyte <br />