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April 16, 2001 <br /> Existing Use: <br /> There is a home, metal barn and another building with a metal roof and <br /> ends with screened sides on the existing property. The remainder of the <br /> property is fallow. <br /> Percolation Test: On April 11,12, 2001 one percolation test and a soil profile were <br /> preformed by me in conformance with the percolation test <br /> procedures outlined in the "Manual Septic Tank Practice", <br /> published by the U.S. Department of Health Education and <br /> Welfare and per requirements of the San Joaquin County Local <br /> Health District. The approximate locations of the test percolation <br /> hole and soil profile are shown on the accompanying detail map. <br /> The percolation rate was 30 Min/Inch <br /> Soil Profile: No water was encountered at a depth of 10 feet. Materials <br /> encountered were 0'1' silty clay, 1'-10' silty sand. <br /> Recommendations: The owners of the proposed "Micro" winery expect on average <br /> patronage of twelve people a day on the weekends. The tasting <br /> room will only be opened on the weekends. <br /> It is recommended that the existing septic system be expanded by <br /> adding 75' of leach lines and providing a 9000 sq. ft. of filter area " <br /> It is also recommended that a Zadel filter 1561rtlled at the <br /> discharge end of the existing septic tank. <br /> Engineer's Statement: The modification of the existing septic system is not expected to <br /> cause health problems. <br /> Dwain C. Tosch <br /> Attachments: ESS/p', <br /> Detail map y� <br /> Percolation field note sheet <br /> N0. 146444 <br /> EXP, 3% ✓a� �: <br /> ' Q <br /> ��. - CIVI c�C' <br />