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November 30, 2007 <br /> NOA Project Number: E07192A <br /> Table 2. <br /> Vicinity Septic System Repair Permit Summary <br /> Address,Date Tank Lines,Length,Pits Comments <br /> Capacity <br /> 10365 South Manthey Road Addition of One,40'leach line Repair/Addition <br /> 8-26-1987 and One,12'x 2'x 10'sump <br /> 9653 Manthey Road ___ One,50'leach line and Repair/Addition <br /> 5-20-1994 One 4'x 12'x 10'sum <br /> The repair permits found in the vicinity were for the addition of leach lines and sumps. <br /> 3.7 Expected On-Site Maximum Septic Tank Usage <br /> The maximum e cte septic tank usage for the site will be fro -va ou uildings cility will <br /> have app ate 135 e ployees worki rm ' <br /> es ho Monday ou gd�aynd <br /> have eigh (8) pl ees orking from 3:00 pm 12:00 'dnight. ave ge of aptel 80 <br /> customers expected during these daps. The, c' e have 2 mployees and n average o <br /> !2ustomers on Saturday from 8:00 am to 12:00 noon. The facili also employ�65 eld <br /> ployees who will only come into the facility occasionally. <br /> Septic system design should be based on the On-Site Wastewater Disposal Standards or other <br /> engineering recommendations. <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 gr o d water levels near the Site. <br /> The Fall 1998 and Spring 1999 maps are the most current offic' aps a ble from the County. <br /> According to these maps (Plates 3-6),ground water lies betwe 1 10 and 20 f et below ground <br /> surface and flows at an indeterminate gradient in the vicinity o the site. <br /> io <br /> ound water was encountered by the staff of Neil O. rson&Associates, Inc. during the <br /> g of one groundwater boring to a minimum depth f 3.5 et below ground surface on <br /> February 7,2007. <br /> 4 <br />