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The general area consists of agriculture with a few scattered residences. 1.3.5 Septic Permit History in the Vicinity Based on a recent file review at EHD, the septic systems in the area appear to utilize leach lines with seepage pits and some sumps. The septic permits can be found in the back of this report. 1.3.6 Septic Repair Permit History in the Vicinity Based on a recent file review at the EHD, the septic repairs in the vicinity appear to be for the addition of leach lines and seepage pits with some sumps. The septic repair permits can be found in the back of this report. 1.3.7 Expected On-Site Maximum Septic Tank Usage Maximum expected usage on each proposed parcel would be for the existing residence, guest house and caretaker's house. A septic system will also serve the proposed banquet hall and wine tasting room. Septic system design should be based on the On-Site Wastewater Disposal Standards or other engineering recommendations. 1.4 Ground Water Information 1.4.1 Ground Water Depth and Gradient The San Joaquin County Flood Control and Water Conservation District (2003 and 2004) groundwater elevation maps were reviewed to determine the groundwater levels near the Site. The Fall 2003 and Spring 2004 maps are the most current official maps available from the County. According to these maps, (Plates 3 and 4), groundwater elevation lies between 0 and 10 feet above mean sea level. The elevation of the land, as previously mentioned in Section 1.1, ranges between approximately 25 and 40 feet above mean sea level. Therefore, the depth to groundwater (the difference between the elevation of the Site and the elevation of groundwater), ranges between approximately 15 and 35 feet below the ground surface. The groundwater in the vicinity of the Site appears to flow to the northeast. A groundwater boring was drilled to a depth of eight and a half (8.5) feet on December 14, 2008. No groundwater was encountered. 1.4.2 Potential Ground Water Contamination Issues Identifying potential ground-water contamination sources was not part of the scope of work for the soil suitability study. Potential ground-water contamination can occur from a number of sources which often include leaky underground storage tanks, agricultural activities, dairies, septic systems, and storm water infiltration. Agricultural activities and the use of septic systems in the area should be considered potential ground-water contamination sources. 902 Industrial Way-Lodi,CA 95240.209.367.3701 -Fax 209.369.4228 C2008Neil 0.Anderson&Associates,Inc