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Shell Service Station(WIC No.20475244404) <br /> 3011 West Benjamin Holt Drive,Stockton,Callfornla <br /> 2) Aegis personnel supervised the drilling and sampling of ten soil borings on site in <br /> January 1990 (report to Shell dated April 13, 1990). The borings ranged in depth <br /> from 11.5 to 21.5 feet below surface. Laboratory analysis of soil samples collected <br /> from the borings did not indicate total petroleum hydrocarbons, as gasoline, or <br /> benzene above the respective PQL. <br /> The results of both the AGS and Aegis subsurface investigations indicate groundwater <br /> beneath the site does not contain petroleum hydrocarbons. It is the opinion of Aegis that <br /> additional investigation of soil and/or groundwater beneath the site is not warranted. <br /> Based on the findings of the subsurface investigations conducted to date, Aegis, on <br /> behalf of Shell, requests closure of the site. <br /> We are resubmitting a copy of the April 13, 1990, report in the event it is not currently in <br /> the SJCEHD project file. Please note, results of previous environmental activity at the site <br /> is included in Appendix D of the report, including the September 16, 1988, AGS report. <br /> If you have any questions, please call me at (916) 782-2110. <br /> Sincerely, <br /> AEGIS ENVIRONMENTAL, INC. <br /> David L. Poulsen <br /> Project Geologist <br /> DLP/law <br /> cc: Dan Kirk, Shell Oil Company <br /> E. Thayer, Central Valley Water Quality Control Board <br /> 09-046B.LTR -2- <br />