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L I-le September 21, 2005 NOA Project Number: E05104A Address,Date Tank Lines,Length,Pits Comments Capacity L 7953 Foppiano Lane 1600 gal Two 60'leach lines and four 42"in New installation to 8-12-04 diameter by 25 foot in depth residence seepage pits 8501 Foppiano Lane 1200 gal One 100'leach line and one 36"in New installation to 6-26-73 diameter by 25'in depth seepage residence ` it L The septic systems in the area appear to utilize leach lines and pits. L3.6 Septic System Repair Permit History in the Vicinity No septic system repair permits were found for the vicinity of the Site during file review at EHD on August 23, 2005. 3.7 Expected On-Site Maximum Septic Tank Usage i L, According to personal communication with Stacey Griffith on September 1,2005 , each lot will eventually be sold to private buyers. The maximum expected on-site septic usage would most likely 4 be for a primary residence and a secondary dwelling. The septic system for the existing residence,as L noted above,will be demolished along with the residence and the storage shed to its north. System design should be based on the On-Site Wastewater Disposal Standards or other engineering recommendations. L 4.0 GROUNDWATER INFORMATION 4.1 Ground Water Depth and Gradient The San Joaquin County Flood Control and Water Conservation District (1998 and 1999) ground water depth and elevation maps were reviewed to determine the ground water levels near the Site. The Fall 1998 and Spring 1999 maps are the most current official maps available from the County. ( �� According to these maps (Plates 3-6),ground water lies between 60 and 80 feet below ground surface and flows at a gradient of about 2 feet per mile to the east in the vicinity of the Site. No ground water was encountered by the staff of Neil O. Anderson&Associates,Inc. during the drilling of seven percolation test holes to a depth of 25 feet on August 9, 2005. i 4 I f` 4 L r L