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F , Sutter Homes Winery <br /> Page No. 2 <br /> w Up gradient contributions. <br /> • Method of disposal of wastes/wastewater. <br /> • Rainfall impact. <br /> f • Hanztehe/Finnemore formula if.applicable. <br /> The soil suitability /Nitrate Loading study was conducted to determine if the area is <br /> suitable for a septic system. Major elements of a Soil Suitability /Nitrate Loading Study" <br /> including exploratory soil borings, ground-water nitrate testing, and percolation tests were <br /> already completed in other recent investigations. <br /> Previous Investi ations <br /> Since August 1998, we understand four investigations have been conducted on the <br /> subject property for the Facility Group Inc. They are summarized as follows: <br /> Summary of Previous Work <br /> Report Title Report Consultant Finding relevant to this investigation <br /> Date <br /> i <br /> Geotechnical 8-8-98 Condor Earth Investigation encountered ground water depths <br /> Engineering Study For Technologies, between 3 feet and 5 feet in June 1998. They stated i <br /> Westside Project Inc. that their field.investigation followed a prolonged <br /> winter and spring rains and groundwater levels <br /> probably reflect relatively high levels. <br /> V <br /> Letter Report:Nitrate 9-4-98 Neil O. Anderson Found ground-water depth at approximately 9 feet <br /> Loading Study &Associates, Inc. on 8-31-98. First ground water samples for nitrate <br /> were collected from four different locations and <br /> were found to be 53, 88, 140,and 170 mg/L nitrate <br /> as NO,. An average ground water nitrate level was <br /> determined to be 113 mg/L nitrate as NO,. <br /> Sutter Home Wine 9-22-98 Condor Earth Three tests found percolation rates of 480 min/inch <br /> Processing Facility Technologies, for depths between 18 to 35 inches.A fourth test <br /> Percolation Test Inc. was declared "not measurable"at 36 inches. <br /> i <br /> Sutter Home Winery 11-24-98 Summit Study determined the average and peak flows,pond <br /> Process Wastewater Engineering, Inc. sizing criteria,aeration requirements,pond water <br /> Management System balance for ponds 1 &2,and irrigation application <br /> Design Criteria, rates. They conclude that the 42 acres of vineyard is <br /> adequate for approximately 22.48 MG of treated <br /> annual disposal/reuse of process wastewater. <br /> 2`p g R s0 <br /> r 'Y <br /> +I # x w <br /> o � <br /> 4ssoc,% <br />