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November 19, 1999 W <br /> Job Numnber.599303 <br /> Page 3 <br /> V. GROUND WATER <br /> The San Joaquin County Flood Control and Water Conservation District ground-water } <br /> depth and elevation maps for Fall 1997 and for Spring 1998 indicates the most recent ground <br /> water levels for San Joaquin County and the west Lodi area:• These maps were used to'determine <br /> the general depth and flow direction of regional ground water(Plates 2.through'5). The <br /> following table summarizes the all.the-available ground water information collected for the site <br /> f <br /> and.nearby area..;v <br /> Table <br /> Summary of Available Ground Water Infoirmation-, <br /> Date,Description,source Groundwater Depth Notes , <br /> - ite soil boring, No ound"water found to at total of 40 <br /> November 9, 1999,ons g, ground ,� - <br /> Neil O Anderson&Associates,Inc. feet in deep. .. <br /> November 9,1999,.existing well, Measured depth to.ground water in Top of casing is about 2 <br /> Neil O. Anderson&Associates,Inc:;_ non.-functioning onsite well at 42.12 feet above ground surface.. <br /> _ feet:below.top of casing. <br /> November 9, 1999,Water sample from No depth recorded Nitrate: 14.5"mg/1-NO <br /> agricultural well located about 1330 ` (3.2 mg/l-N) <br /> feet southeast of site,Neil O. Anderson <br /> &Associates,Inc. ... DBCP: 0,33 uO.. <br /> April 18, 1985, 10-19.Hwy. 12,Lodi, Depth to water measure at 55 feet <br /> Information from a well drillers log: <br /> Spring.1998,.San Joaquin County About 42.feet in depth: Gradient about 10 feet/mile, <br /> , . <br /> Ground Water Map., flowing south-southeast- <br /> Fall 10971.`San Joaquin County -About 46 feet in depth Gradient about 12.5 _ <br /> Ground Water Ma feet/mile;flowin south. <br /> T The existing-on-site water well is,located about 120 feet.north of the new,proposed leach <br /> - field area. The well was'used to serve the needs of the pre <br /> farm house and is reported to. <br /> be 200 feet in total depth: The well was,found.not functioning at'the time of our investigation <br /> however an access.hole was opened to obtain a depth to ground water measurement- The well . <br /> - drillers log, constcuction'deiails and production rate are not known. The well'is planned to be <br /> repared and tested. <br /> r <br />