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�. Environmental Assessors,, lnc, ±'_ rel <br /> 1410/71-51-1C <br /> January 14, 1994 <br /> Mr Saiyed Ali <br /> Caltrans - District 10 <br /> 1976 E Charter Way <br /> P O Box 2042 <br /> Stockton, CA 95201 <br /> Subject Sampling at Stockton Yard <br /> Dear Mr Ali <br /> Per your request, Environmental Assessors, Inc conducted the following at Stockton <br /> Maintenance Yard <br /> o Purged, sampled (for EPA 8015-Modified for Gasoline, and EPA 8020), and <br /> measured groundwater levels of three monitoring wells (referred to as MWA, <br /> MWB, and MWC), and <br /> o Sampled one soil pile for EPA 8015/8020, and EPA 8015-Modified for <br /> Diesel <br /> Enclosed are the laboratory results of the analyses Results show that there are no <br /> gasoline-derived contaminants in the soil pile, but that diesel was detected at a low level <br /> of 33 mg/kg Gasoline-derived contaminants exceeding water quality goals were <br /> detected in all three monitoring wells Groundwater flow at Stockton Maintenance Yard <br /> is towards the northeast based on the water elevation measurements on October 22, <br /> 1993 <br /> Sincerely, <br /> Environmental Assessors, Inc <br /> 1 <br /> Norman Sacro <br /> Project Director <br /> Enclosure <br /> 1126E AlosW Avenue • PO Box 897 Glendoi a California 91740 <br /> Telephone 113181852-1629 . Fax (6161652-1630 <br />