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®AZI INC <br /> 3.0 HYDROGEOLOGIC SETTING <br /> The shallow subsurface geology beneath the property to a depth of approximately 700 <br /> feet consists mainly of a sequence of silt and sand, with varying amounts of interbedded <br /> clay (Page, 1986) <br /> Ground water elevation is currently approximately 5 to 15 feet below sea level (55 to 65 <br /> feet below level ground surface) (San Joaquin County Flood Control and Water <br /> Conservation District, 1975, 1980, 1984, 1987, 1991, (Exhibit 6) <br /> I <br /> The ground water gradient in the vicinity of the LCN property has been mapped with a <br /> primary flow direction southeast to southwest (Exhibit 6) A limited ground water <br /> t <br /> investigation was conducted at the former Italian Swiss Colony Winery located <br /> approximately 500 feet northwest of the LCN site in support of a diesel and fuel oil <br /> hydrocarbon soil and ground water investigation under oversight by SJCLHD The <br /> F ground water gradient at the former Italian Swiss Colony winery was determined by <br /> Hunter (1988) to be to the southeast <br /> i - <br /> Ground water wells are located within-a mile radius of the LCN site These wells are <br /> -shown on Exhibit 7 The nearest identified water well is the City of Lodi Well Number 24,- <br /> located approximafely 1,000 feet south of the LCN site Privately owned wells are known, <br /> to exist within-a mile of the LCN site (City of Lodi, Water Works Department, personal <br /> communication, 1993) but the locations of these wells are unknown <br /> I <br /> I <br /> k <br /> U <br /> 12270010 013 Page 9 <br />