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March 11,:2005 - -- <br /> NOA Project Number: E04159A <br /> The septic`systems an the area appear to utilize leach lines with seepage pits'. The'permits in the area <br /> are all for new installations. <br /> 3.6 Septic Repair Permit History in the Vicinity <br /> 'The following septic system repair permits were found for the"vicinity of the Site during file review <br /> at EHD on January.6, 2005: <br /> Table 2. <br /> -= <br /> Vicinity Septic System Repair Permit Summa — - y <br /> Address;Date'` Tank Lines,Length,Pits Comments <br /> .. Capacity <br /> (! 13250 North Curry Road,11- Not reported `One 40 foot leach line and_ , Rep air/addition made to a <br /> 14-88 one seepage pit residential system <br /> F, 13338 North CurryRoad,12= Not reported ' One 48 inch by 25 foot septic° Repair/ addition to a residential <br /> _. <br /> 15-71 system _ - — -s stem <br /> Both repair permits found in the vicinity were for the of leach lines. <br /> f/3.7 Expected On-Site Maximum Septic Tank Usage <br /> Please see section-3.4.1 of th Part II, Nitrate Loading Study, for maximum septic tank usage. Septic <br /> system design should be baton the On-Site WlastewaterDilposal Standards or other engineering <br /> recommendations. <br /> P .Y'4.0 GROUND WATER INFORMATION <br /> /4.1 Ground Water Depth and Gradient <br /> FThe 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 maps are the most current official maps available from the County <br /> � . Flood Control Office...According to these maps (Plates 3-6),ground water lies between 70 and 90 <br /> feet below ground surface and flows at a gradient of 5 to 8 feet per mile to the southeast in the - _ <br /> F, vicinity of the Site. <br /> No ground water was'encountered by the staff of Neil O.Anderson&Associates, Inc. during the <br /> ' drilling of one shallow and one deep percolation test holes to a depth of 25 feet on February 7, <br /> F 2005. <br /> F .. <br /> F4 <br />