ARCHIVED REPORTS XR0006094 - Laserfiche WebLink

Home Browse Search

PURPOSE AND SCOPE The following report documents the First Quarter 2003 groundwater monitoring and also includes an update of the remedial action "Pump Test and Over-Excavation of Contaminated Soils" Depth to water measurements and groundwater sampling was coordinated with the adjacent property (Country Club Food and Fuel, 1856 Country Club Boulevard) On January 6, 2003 MW1 was destroyed and on the following days temporary piezometers were installed in preparation for the pump test and over- excavation On January 31, 2003 depth to water measurements were obtained from all wells associated with both sites At that time groundwater samples were obtained from the wells associated with the Sanchez Property (1876 Country Club Blvd) Western Geo- Engineers (WEGE) performed the sampling and monitored the wells associated with the Sanchez Property (1876 Country Club Blvd) and AGE monitored the wells associated with Country Club Food and Fuel SIVE LOCATION AND DESCRIPTION The site address is 1876 Country Club Blvd , Stockton, CA It is located at the southeast corner of the intersection of Mission Street and Country Club Blvd (Figure 1) The property is located in projected Section 4, TIN, R6E of the MDB&M at approximately five feet above mean sea level The north corner of the property at Country Club Blvd and Mission Road is at N370 58 044' Latitude and W 1210 19 393' Longitude (Delonme sa 7 0) On May 1, 2001 Land Surveyors Kjeldsen, Sinnock & Neudeck, Inc surveyed the positions, top of casing and surface elevations of all wells associated with this site, see Appendix B Figures 3 has been revised to this new survey along with Table 1 All associated figures showing site conditions are based on the new Figure 3 The property previously contained two 1000 gallon gasoline Underground Storage Tanks (UST's), product dispensers, and associated underground piping (Figure 3) The UST's, dispensers, and piping were removed from the site in 1989 The property owner originally installed five onsite morutonng wells Three additional cluster wells have been installed to aid in the investigation of soil and groundwater conditions at the site LOCAL GEOLOGY AND HYDROGEOLOGY The site is located on surface soils belonging to the Stockton Adobe Clay and Honeycut Clay series They are derived from Recent alluvial fan and floodplain deposits The 40 feet of explored section consisted of clay and silt overlying interbedded lenses of silty and clayey sands below 12 feet This first sandy formation will be designated the A zone aquifer The base of the A zone is at approximately 17 - 18 feet below ground surface 3 QM 1 ST 2003