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1.0 INTRODUCTION <br /> ' On behalf of Rinehart Distributing, Inc , Ramage Environmental has prepared this Status Report, <br /> Cone Penetration Testing and Quarterly Groundwater Monitoring, Second Quarter 2002 for <br /> submittal to San Joaquin County Public Health Services Environmental Health Division <br /> (PHS/EHD) and to the Central Valley Regional Water Quality Control Board (RWQCB) <br /> ' The scope of work was outlined in Ramage Environmental's Work Plan, Additional Site <br /> Investigation, dated September 26, 2001, and Work Plan Addendum, dated January 21, 2002 <br /> Installation of two approved groundwater monitoring wells is pending encroachment permitting <br /> and contractor scheduling PHS/EHD approved the work plan and addendum on January 30, <br /> 2002 A copy of the regulatory approval letter is included in Appendix A <br /> 1 1 Site Location and Description <br /> rThe southern portion of the subject site is a gasoline service station on located at 1001 E Yosemite <br /> Avenue in the city of Manteca (San Joaquin County), California (Figure 1) The northern portion <br /> of the site is undeveloped raw land The service station is currently operational as a Beacon <br /> station with new underground storage tanks (UST) and dispensing system The former RINO <br /> service station included three 10,000-gallon gasoline USTs in a common tank excavation on the <br /> east side of the site and two dispenser islands in the south-central part of the site (Figure 2) The <br /> new USTs were installed in the old UST excavation and the new dispensers were constructed in <br /> approximately the same location as the old dispensers <br /> Immediately east and northeast of the site are residential dwellings along Raylow Avenue (Figure <br /> 3) Each of these residential properties includes a domestic well The four domestic wells <br /> nearest to the site are shown on Figure 3 <br /> 12 Previous Work <br /> 1 2 1 UST System Removal and Soil Sampling <br /> During January 1999, Herbst Engineering, Inc removed the three former USTs, two dispenser <br /> islands, and the old canopy structure and supports On January 28, 1999, under PHS/EHD <br /> ' observation, Ramage Environmental collected six soil samples from beneath the former USTs <br /> and six soil samples from beneath the former dispensers and canopy support structures <br /> 5 � <br />