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E <br /> August 31, 2006 <br /> NOA Project Number: E06091A <br /> I 110 3.7 Expected On-Site Maximum Septic Tank UsageF � <br /> { A residence exists on the property which will be inhabited regularly by five to seven Buddhist <br /> monks. The average daily temple attendance will be approximately 10 to 25 people per day, <br /> however, the maximum expected usage in the future will be up to a maximum of 80 attendants per <br /> day. <br /> 4.0 GROUND WATER INFORMATION <br /> 4.1 Ground Water Depth and Gradient <br /> F1The 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 /> C/ The Fall 1998 and Spring 1999 maps are the most current official maps available from the county. <br /> 2. According to these maps (Plates 3-6), ground water lies between 20 and 40 feet below ground / <br /> surface in the vicinity of the Site. The groundwater appears to flow to the south through the <br /> immediate vicinity of the Site. <br /> 0 <br /> No ground water was encountered by the staff of Neil O.Anderson&Associates, Inc. during the <br /> drilling of a percolation test hole to a depth of 8.5 feet on August 10, 2006. <br /> 4.2 Potential Ground Water Contamination Issues <br /> Identifying potential ground-water contamination sources was not part of the scope of work for the <br /> soil suitability study. <br /> Potential ground-water contamination can occur from a number of sources which often include <br /> 2� leaky underground storage tanks, agricultural activities, dairies, septic systems, and storm water <br /> infiltration. Any past agricultural activities and the present use of septic systems in the area should L <br /> be considered potential ground-water contamination sources. <br /> 4.3 Water Sample Location <br /> One wellp ermit was found for the subject property address during file review at EHD on August <br /> 15, 2006. The permit was issued to the Caffese Brothers on September 19, 1995 and is for the repair <br /> of an existing pump. <br /> A water sample was taken from a faucet near the well on August 8, 2006 by Mr.Jessen Welch. <br /> (Plate 1). <br /> 4 <br />