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` May 26, 2005 <br /> NOA Project Number: E05004A <br /> V The septic systems in the area appear to utilize leach lines with seepage pits. <br /> I <br /> 3.6 Septic System Repair Permit History in the Vicinity <br /> L The following septic system repair permits were found for the vicinity of the Site during file review <br /> at EHD on January 28, 2005: <br /> j <br /> 6W Table 3. <br /> Vicinity Septic System Repair Permit Summary. <br /> Address,Date Tank Lines,Length,Pits Comments <br /> Capacity <br /> One 100 foot leach line <br /> 23223 North Sowles Road, and one 25 foot by 33 Repair/addition of one leach line <br /> 7/23/1969 Not reported inch diameter seepage and one seepage pit for a residence <br /> Pit <br /> 23223 North Sowles Road, Not reported Two 25 foot by 33 inch Repair/addition of two seepage pits <br /> 9/6/1973 diameter seepage pits for a residence <br /> One 40 foot leach line <br /> 23525 North Sowles Road, Not reported and two 25 foot by 36 Repair/addition of one leach lines <br /> 7/16/1998 inch diameter seepage and two seepage pits for a residence <br /> Pits <br /> The repair permits are for the additions of leach lines and pits. <br /> 1 <br /> C, j/3.7 Expected On-Site Maximum Septic Tank Usage <br /> L Maximum expected usage on each proposed parcel would be for a primary residence and second <br /> dwelling unit Two residencs are currently located on the proposed Parcel 1. Septic system design <br /> should be based on the n-Site Wastewater Disposal Standards or other engineering recommendations. <br /> k <br /> �4 0 GROUND WATER INFORMATION <br /> / 4.1 Ground Water Depth and Gradient <br /> The San Joaquin County Flood Control and Water Conservation District (1998 and 1999) ground <br /> water depth and elevation maps were reviewed to determine the ground water levels near the Site. <br /> The Fall 1998 and Spring 1999 traps are the most current official maps available from the County. <br /> According to these maps (Plates 3-6),ground water lies between 90 and 125 feet below ground <br /> Lsurface and flows at a gradient of about 8 feet per mile to the north in the vicinity of the Site. <br /> Perched ground water was encountered by the staff of Neil O.Anderson&Associates, Inc. during <br /> 4 <br /> L <br />