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L <br /> L November 30,2005 <br /> NOA Project Number: E05116B <br /> LTable 2. <br /> On-site Septic System Repair Permit Summary. <br /> _ Address,Date Tank Lines,Length,Pits Comments <br /> Capacity <br /> L 11211 East Jahant Road - One,40'leach lines Repair/Addition <br /> 6-14-01 One,25'x 36"seepage pit <br /> 11351 East Jahant Road 1600 Three,40'leach lines Destruction/Replacement <br /> K Three 25'x 36"seepage pits <br /> 6 <br /> The septic system repair permits in the area are for the addition of leach lines and seepage pits and <br /> the replacement of a septic tank. <br /> ✓3.7 Expected On-Site Maximum Septic Tank Usage <br /> Maximum expected usage on each parcel would be for the primary residence and a secondary <br /> L �• 7 dwelling unit. The property currently has one house on proposed Parcel 1. Septic system design <br /> should be based on the On-Site Wastewater Disposal Standards or other engineering recommendations. <br /> 4.0 GROUND WATER INFORMATION <br /> L4.1 Ground Water Depth and Gradient <br /> yi <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 /> L The Fall 1998 and Spring 1999 maps are the most current official maps available from the County. <br /> According to these maps (Plates 3-6),ground water lies between 120 and 130 feet below ground <br /> surface and flows at a gradient of about 5 feet per mile to the north in the vicinity of the Site. y d <br /> k- No ground water was encountered by the staff of Neil O.Anderson&Associates, Inc. during the <br /> drilling of three percolation test holes to a depth of 25 feet and six percolation test holes to a depth <br /> of 3 feet on October 23,24 and 31, 2005. <br /> L <br /> L <br /> L <br /> 4 <br /> L '004 <br /> 6 <br />