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Clayton
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<br /> previous sampling locations, the approximate locations from which many samples were
<br /> collected for these investigations are presented in Figure 4. Historical analytical results
<br /> for groundwater and soil were presented in the Site Delineation Report, Parcel?A and
<br /> Adjacent Areas, Stockton California (Clayton,August 6, 2002), and are presented in
<br /> Appendix A. The historical reports are listed in the following bullets:
<br /> • Report, Subsurface Environmental Investigation at City of Stockton Waterfront
<br /> Redevelopment Property, West Weber Avenue and North Lincoln Street, Stockton,
<br /> California (Applied Geosystems, October 31, 1989). This investigation included
<br /> soil and groundwater sampling and installation of three groundwater monitor
<br /> wells (MW-1 through MW-3).
<br /> • Evaluation of Hydrocarbons in Soil and Ground Water at City of Stockton
<br /> Waterfront Redevelopment Property, West Weber Avenue and North Lincoln
<br /> Street, Stockton, California (Applied Geosystems, January 29, 1991). This
<br /> investigation included soil and groundwater sampling and installation of four
<br /> groundwater monitoring wells (MW-4 through MW-7).
<br /> • Memorandum re: L&MPetroleum (Ground Zero, December 27, 1995). This letter
<br /> reported that groundwater samples were collected from MW-4 and MW-7.
<br /> • Subsurface Investigation, South Parcel, West Weber Avenue &North Lincoln
<br /> Street, Stockton, California (Treadwell &Rollo, November 8, 1996). This
<br /> investigation included soil and groundwater sampling and installation of four
<br /> groundwater monitoring wells (MW-8 through MW-11).
<br /> • Groundwater Monitoring and Sampling and Tidal Influence Study Report, The
<br /> Stockton Group Site, West Weber Avenue and North Lincoln Street, Stockton,
<br /> California (Environmental Resolutions, Inc., June 11, 1999). This investigation
<br /> included surveying and sampling of groundwater monitoring wells.
<br /> • Site Characterization Report, South Shore Parcels, Stockton, California
<br /> (Treadwell & Rollo, December 13, 1999). This investigation included a
<br /> geophysical survey, soil and groundwater sampling, installation of six monitoring
<br /> wells (2BMW-1, 3MW-1, 2AMW-12 through 2AMW-15), and a Preliminary
<br /> Endangerment Assessment.
<br /> • Off-Site Source Investigation, The Stockton Group Property, West Weber Avenue
<br /> and North Lincoln Street, Stockton, California (Environmental Resolutions, Inc.,
<br /> May 17, 2000). This investigation included reviews of federal and California
<br /> environmental databases, Sanborn Fire Insurance Maps, aerial photographs, and
<br /> — public agency records.
<br /> • Subsurface Investigation for Area 3 (Treadwell & Rollo, August 17, 2001). This
<br /> investigation included soil and groundwater sampling.
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