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August 15,2003 <br /> Job Number: LG03-221 <br /> Page 4 <br /> Attached in the appendix are the septic system permits for the site and adjacent addresses. <br /> Inspection of the permits which neighbor the property indicate the area has used many septic <br /> system configurations in the past. These include a cesspool system,redwood septic tank, seepage <br /> pits, and shallow leach line system. <br /> Two water wells are located on the property. One well is dedicated to vineyard irrigation, the <br /> other is for domestic water. No information was available regarding the construction details of <br /> either well. Two septic systems (north and south) are operating and receive domestic waste <br /> water from the winery building. <br /> We understand the winery building was a former labor camp building which housed 20 workers. <br /> The north septic system of the building was connected to a commercial kitchen and toilet. The <br /> kitchen and toilet have since been removed. The north septic system is now connected to a floor <br /> drain in the winery. The south septic system of the building is connected to a shower and a toilet <br /> which is in use today. <br /> Though the septic system permit search indicated that repairs were performed on each system in <br /> 1975, the septic tank sizes and original configurations are unknown. All that is known regarding <br /> the configuration is that 40-feet of leach line and a sump was added to each system in 1975. <br /> 5.0 GROUND WATER <br /> The San Joaquin County Flood Control and Water Conservation District (1998, 1999) ground <br /> water depth and elevation maps indicate the ground water levels of most parts of the San Joaquin <br /> County. The Fall 1998 and Spring 1999 ground water maps are the most recent maps depicting <br /> the ground water depth and elevation for San Joaquin County. <br /> The ground water gradient and ground water flow direction near the site is between 23 and 12 <br /> feet/mile flowing south to southeast for the period of Fall 1998 to Spring 1999. According to <br /> these maps, the depth to ground water for this period was between 26 and 29 feet. <br /> The following table summarizes all the available ground water information collected for the site <br /> and nearby area. <br /> 'pc Rs 11 <br /> W- Z W <br />