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Al <br /> HI-A r11 �+ Chevron <br /> 02 <br /> Chevron us.A.Products company <br /> 6001 Bollinger Canyon Road <br /> August 25, 1994 Building L <br /> g San Ramon,CA 94583 <br /> P0.Box 5004 <br /> San Ramon,CA 94583-0804 <br /> Mazy Meays Marketing-Northwest Region <br /> San Joaquin County Public Health Services Phone 510842 9500 <br /> P. O. Box 2009 <br /> Stockton, CA 95201 <br /> Re: Former Signal Oil #221-5 5431 Grantline Road Banip.CA <br /> Attached Environmental Assessment Report(GTI,8/2/94) <br /> Dear Ms. Meays: <br /> Attached you will find a report dated August 2, 1994, which was prepared by Chevron's <br /> consultant, Groundwater Technology, Inc. (GTI), to describe the field activities and sample results <br /> associated with the installation of two groundwater monitoring wells on June 21, 1994 at the <br /> subject site. <br /> Soil samples collected from both borings were analyzed for the presence of TPHGas and BTEX <br /> constituents. One sample collected at ten feet below grade from well MW-2 detected low levels of <br /> TPHGas and TEX constituents. There were no petroleum hydrocarbons detected from any of the <br /> other soil sample intervals. These results, combined with previous findings, serve to define the <br /> extent of petroleum hydrocarbon contamination in soil within the vicinity of the former fuel <br /> facilities. <br /> Groundwater samples were obtained from all three site-related monitoring wells this month and <br /> will be reported by Chevron's consultant, Blaine Tech Services, in their third quarter monitoring <br /> report. <br /> If you have any questions or comments, you may contact me at(510) 842-5695. <br /> Sincerely, <br /> /. l <br /> Brett L. Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br />