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PURPOSE AND SCOPE <br /> The following report documents the Fourth Quarter 2002 groundwater monitoring <br /> Depth to water measurements and groundwater sampling were coordinated with the <br /> adjacent property (Country Club Food and Fuel, 1856 Country Club Boulevard) On <br /> November 21, 2002, depth to water measurements were obtained from all wells <br /> associated with both sites At that time groundwater samples were obtained from the <br /> wells associated with the Sanchez Property (1876 Country Club Blvd) Western Geo- <br /> Engineers (WEGE) performed the sampling and monitored the wells associated with the <br /> Sanchez Property (1876 Country Club Blvd) and AGE monitored the wells associated <br /> with Country Club Food and Fuel <br /> SIVE LOCATION AND DESCRIPTION <br /> The site address is 1876 Country Club Blvd , Stockton, CA It is located at the southeast <br /> comer of the intersection of Mission Street and Country Club Blvd (Figure 1) The <br /> property is located in projected Section 4, TIN, R6E of the MDB&M at approximately <br /> five feet above mean sea level The north comer of the property at Country Club Blvd <br /> and Mission Road is at N370 58 044' Latitude and W1210 19 393' Longitude (Delorme sa <br /> 7 0) On May 1, 2001 Land Surveyors Kjeldsen, Sinnock & Neudeck, Inc surveyed the <br /> positrons, top of casing and surface elevations of all wells associated with this site, see <br /> Appendix B Figures 3 has been revised to this new survey along with Table I All <br /> associated figures showing site conditions are based on the new Figure 3 <br /> The property previously contained two 1000 gallon gasoline Underground Storage Tanks <br /> (UST's), product dispensers, and associated underground piping (Figure 3) The UST's, <br /> dispensers, and piping were removed from the site in 1989 <br /> The property owner originally installed five onsite monitoring wells Three additional <br /> cluster wells have been installed to aid in the investigation of soil and groundwater <br /> conditions at the site <br /> LOCAL GEOLOGY AND HDROGEOLOGY <br /> The site is located on surface soils belonging to the Stockton Adobe Clay and Honeycut <br /> Clay series They are derived from Recent alluvial fan and floodplain deposits The 40 <br /> feet of explored section consisted of clay and silt overlying interbedded lenses of silty <br /> and clayey sands below 12 feet Tlus first sandy formation will be designated the A zone <br /> aquifer The base of the A zone is at approximately 17 - 18 feet below ground surface <br /> (bgs) An agwtard consisting of silty clay approximately 3 to 4 feet thick separates the <br /> silty clayey sand A zone aquifer from the B zone aquifer that is found at approximately <br /> 21 feet bgs and is approximately 6 to 7 feet thick The B zone aquifer consists of cleaner <br /> 3 QM 4th 2002 <br />