ARCHIVED REPORTS_1ST QUARTER 2008 SITE STATUS REMEDIAL SUMMARY AND GROUNDWATER MONITORING REPORT

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S E C O R i • 1.0 SITE DESCRIPTION This first quarter 2008 Site Status remedial summary and groundwater monitoring report describes activities conducted on behalf of CEMC and COP for the site located adjacent to and along the eastern boundary of the Delta View Apartments (802 West Weber Avenue) and west of the North Lincoln Street and West Weber Avenue cross road in San Joaquin County, California (Figure 1). The Site is currently owned by the City of Stockton Redevelopment Agency (RDA), which refers to the Site as "Parcel 2A". The Site currently consists of relatively flat, fallow land and is mostly undeveloped except for the Delta View Apartments (formerly the Delta Gateway Apartments) located on the western portion of the Site. The Stockton Deep Water Channel, Weber Avenue and an office building complex are located north of the Site. The Mormon Slough, a children's museum, and Work Net building are located to the south and east of the Site, respectively. During a December 2, 2002 meeting with the California Regional Water Quality Control Board Central Valley Region (CRWQCB-CVR), environmental management of the Site was divided into three OUs: L&M OU; Unocal OU (UOU); and Morton OU (MOU). The L&M OU was established to direct investigations in the area south of West Weber Avenue, west of the midline of the former Harrison Street, east of North Edison, and north of former Main Street (Appendix A). This OU includes monitoring wells MW-4, MW-9, MW-10, 2AMW-12 through 2AMW-14, MW-16 through MW-35, MW-40 through MW-55, and dual phase extraction (DPE) wells DPE-1 through DPE-13. The UOU was established to direct investigations from West Weber Street south to the former Main Street and from the midline of the former Harrison Street east to • Lincoln Street. This OU includes monitoring wells MW-3, MW-5, MW-7, MW-8, MW-11, and MW-37 through MW-39. The MOU was established to direct investigations from the middle of the former Main Street down to the southern boundary of Parcel 2A and from the midline of the former Harrison Street east to Lincoln Street. The MOU includes monitoring wells MW-6, 2BMW-1, and 2AMW-15. Currently, oversight of environmental management responsibilities of the L&M OU is retained by SECOR on behalf of CEMC and COP, and oversight of the UOU and MOU is performed by Wallace Kuhl Associates (Wallace-Kuhl), on behalf of the RDA's subcontractor(Golden State Environmental). • 1QO8QSSRQRSRQMR.F1na1.doc 1 April 30,2008 77Tw.26397.42.1307