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Page 2 <br /> February 19, 1993 <br /> M. S. 92-134 <br /> E. GROUND WATER DEPTH AND TESTING <br /> There is a homesite well on the property. According to <br /> map of "Lines of Equal Depth to Water in Wells" , published <br /> in Spring of 1991 by the San Joaquin County Flood Control <br /> and Water Conservation District, t40 depth to groundwater <br /> at this location is approximately <br /> on <br /> of the groundwater is approximately 50 with a northwest <br /> gradient. <br /> A water sample was obtained from the homesite well on <br /> October 18, 1992 . The sample was submitted and tested <br /> by FGL Environmental of Stockton, Calif. for DBCP <br /> (dibromochloropropane) and nitrates. the maxhe imum recommended <br /> icate <br /> that DBCP was detected at 1 . 47 ug/ It is <br /> contaminant level per State Standards is 0. 2 ug/L• <br /> recommended that some form of treatment of the water should <br /> be done. (See exhibit "D" ) . Nitrates tested at 41 mg/L <br /> a State recommended maximum allowable limit of 45 mg/L. <br /> (See exhibit "E" and "F" ) • <br /> F. SOIL PROFILE AND PERCOLATION TESTS <br /> The site is very sandy and during excavation of the two (2) <br /> percolation test holes sandy soil was encountered for the <br /> full 39" depth of each test hole. The test holes (one for <br /> Parcel # 1 and one for Par� were <br /> onDecembea 4,t1992water <br /> 24 hours prior to running he tests <br /> For results of the tests and test holelocation se <br /> e Exhibit "H" for App Environmental <br /> (Exhibit "G" ) , Se <br /> Health Permit. The percolation rate tested i000 <br /> of <br /> footlt <br /> of 40 minutes per inch of percolation. A 10, <br /> area is recommendedto be <br /> section aside for the each field area <br /> for Parcel 1 & 2. <br /> G• CONCLUSIONS the visual <br /> Based on the results of the percolates performance of the <br /> observation of the sandy soil, the p <br /> existing <br /> septic systems it is my opinion that the subject <br /> property is well suited for the use of a septic tank <br /> oxanately <br /> leach field system. Because the groundwater is app septic <br /> 40 feet below the surface of the ground a 25 footideep <br /> t <br /> pit cound be inslhanetheand <br /> allowaslet5mfootOf tclearance above <br /> would be higherthe new <br /> the groundwater table. Baed oforhParcelo#tis infrm2tand the existing <br /> proposed future septic systemaffect <br /> septic system for Parcel # 1 should not adversely <br /> the quality of the ground water in the area . <br /> H.LIMITATIONS <br /> iof this report are based on the site conditions <br /> The conclusions <br />