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-�- &fflffil "s q �x.a•- '"" _ rix. .za '' _ ,+' <br /> 'IN.- <br /> p. +�dA" +a'� y 4 W, .1. <br /> rc;. �`' ME! <br /> ,I I <br /> .' -" ^Ar�, va��.� <br /> 117 <br /> �. :-{ •,'�s <br /> kk m� <br /> Y- ' <br /> A <br /> Delta <br /> Environmental <br /> Consultants.Inc. <br /> 3330 Data Drive <br /> Rancho Cordova.CA 95670 ` r <br /> 91616638-2085 <br /> FAX:916j638-8385 y <br /> March 6, 1990 <br /> Ms. Diane Hinson <br /> San Joaquin Local Health District <br /> 1601 Hazelton Avenue <br /> Stockton, California 95201 <br /> Subject: Soil and Ground Water Investigation <br /> Shell Service Station <br /> 620 West Charter Way,Stockton, Cslifor�:a <br /> Delta Project No. 40-88-586 <br /> Dear Ms <br /> Hinson: <br /> Delta EnYlrOnrrlental Cmwultants,Inc.(Delta),has been authorized to conduct an investigation of soil <br /> and gror'nd water conditions at a Shell Oil Company (Shell) service station located at 620 West <br /> Charter Way, Stockton, San Joaquin County,California (Figure 1). The investigation is intended to <br /> evaluate:the presence of petroleum hydrocarbon constituents in Soil and ground water beneath the site. <br /> This tester summarizes the results of soil boring, ground water monitoring well installation, and soil <br /> and ground water sampling performed at the site during the months of December 1989 and January <br /> 1990. Also included in this report is information pertaining to product recovery and interim remedial <br /> activities presently being perforMC-4 at the site. Data in this Ietter report supplements information <br /> presented in the Delta repo:,.,Hyidragerdogi Assessment Work Plan,dated August 1, 1989. <br /> Previous Work <br /> Delta has performed the following scope of work to date: <br /> Nova.n6er 10, 1988 Soil Assessment Related to Removal of Undo <br /> to the San Joaquin County Public Health Sees Environmentalund Tanks Health <br /> Division (San Joaquin County). <br /> February 3 and 9, 1959 Fight Soil borings were advanced to depths ranging from 16.5 to 31.5 feet <br /> below grade:. <br /> July 3, 1989 Pretank Removal Soil Assessment was submitted to San Joaquin County <br /> summarizing the resulis of soil boring activities. <br /> Pr3C-Gal SCIuaCns:0 En^. ,rynrnart [%Cncerns <br />