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eofr[Technics inc. <br /> _ Page 8 <br /> & B Equipment <br /> Additional Site Characterization WP Addendum <br /> it ( � Project No. 336.2 <br /> April 7, 1997 <br /> I <br /> 5.3 Well Survey <br /> In trying to determine deeper geology for the site Geological Technics Inc. conducted a <br /> comprehensive well survey by reviewing records at SJCPHSEHD and the State of California <br /> Department of Water Resources (DWR). The well survey did not identify any wells in a <br /> 1,000 ft radius. A visual inspection will be performed in the area to locate any wells in the <br /> j area. The purpose of the survey is to identify any municipal, domestic, or agricultural wells <br /> that may impact the hydrogeologic parameters of this site. Identifying if any of these wells <br /> l� have a cone of depression that extends under this site may influence well head protection <br /> measures. <br /> 5.4 Preliminary Fate and Transport Risk Assessment <br /> A preliminary fate and transport risk assessment is proposed to identify potential receptors <br /> t' and to evaluate the potential for these chemicals to impact public health or the environment. <br /> We intend to identify nearby potential preferential migration pathways and potential recharge <br /> areas. Field measured parameters will monitor plume stability or its tendency to degrade in <br /> the natural setting and the potential for these chemicals to migrate and impact producing <br /> water wells. The scope of the assessment will also include a comprehensive site inspection <br /> and accessing building department records for information pertaining to the on site below <br /> grade structures. <br /> 6.0 SCHEDULE & REPORTING <br /> Geological Technics Inc. anticipates beginning field work in late April 1997 following work <br /> plan approval, cost pre-approval from the USTCFP, and issuance of the monitoring well <br /> permits. The information gathered during this phase of work, including the lateral and <br /> vertical definition work, will be presented in a report which will include a summary of the <br /> geology and the results of sample analyses. The project will be supervised by Dr. Ray <br /> Kablanow, a registered professional geologist responsible for the work. Copies of the report <br /> will be forwarded to both the appropriate County and State regulatory agencies. <br /> U <br /> L� <br /> 6 , <br /> G , <br />