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WE <br /> NAM N' <br /> M HIM, <br /> S <br /> T� <br /> 7910 Lo-_8a _to Road <br /> 3tacktaa,Csllfo�vEa <br /> Datta P ojace No.40-58-147 <br /> Pais 9 <br /> On D6cember.20, 1988, four underground storage tanks ware excavated and removed from the <br /> above-referenced site: A Delta geologist was present at the time the underground storage tanks <br /> were removed and obtained soil samples from approximately 2 feet below the bottom of the <br /> excavation. The soil samples were submitted to the laboratoryfor chemical m1ca1 analyses as required by <br /> San Joaquin County, The soil samples were sent to Eureka Laboratories For chemical analysis of <br /> M,TPH, organic le1d,and EDB. <br /> Soil samples were also obtained from the bottom of the excavation of the newtank location. These <br /> samples were taken to verify that the soils at this location were free of petroleum hydrocarbons. <br /> � �,.jj, PUrnose <br /> The purpose of this investigation was to... <br /> 1. Document the presence or absence of petroleum hydrocarbons in the soils-underlying <br /> i the existing underground storage tanks and product:fines. <br /> 2. Observe tank removal and document final disposal designation. <br /> 3. Document proper closure of the excavation. <br /> 2.2_ Prerlo4la ad <br /> A pre pull so11 assessma6t was conducted on May-23, 1488,whereby Sail borings B-1 through..: <br /> t B 8 wars drilled: Sol samples were collected at 5-foot intervals and screaaed with a photoio tion <br /> detector'{PI�ej'for the.pMence'of petroleum hydrocarbons.;' <br /> r 3.0_SM DESC$EMON <br /> s <br /> 'j.] Site Sxttlna <br /> The Shell Service Station is located at 7910 Lower Sacramento Road,Stockton,California,SWI/4, <br /> NE 1/4,sec. 16, TIN. R.6E.(Figure 1). Records from the San Joaquin County Assessor's Office <br /> indicate that the Parcel No. is 077-330-49 and that the property is owned by Y.C. oda. The site <br /> �il --- ------ -- <br /> en:.ompasseS an area of a - _--, <br /> .: --- pprArlmately 0.-4 acre.-- <br /> f y - <br /> ,i <br />