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F 64 <br /> 007-220--15 Greg Rausser, 26860 Horth Elliott Road <br /> Original septic system is 13 years old <br /> No problems with leach area <br /> Depth to ground water is unknown <br /> 007-240-36 Jack Partridge, 12385 East Jahant Road <br /> Septic system is 60 years old <br /> No problems <br /> Depth to ground water is 140 feet <br /> 007-250-04 Lae Wagaman, 25221 North Pearl <br /> Septic system is 27 years old and has <br /> been pumped twice <br /> One leach line has been added. <br /> Depth to ground water is 170 to 200 feet <br /> GROUND WATER <br /> From the San Joaquin County Flood Control and Water <br /> Conservation District Study we find that the ground <br /> water depth is approximately 130 feat and that the <br /> gradient falls northerly approximately 10 feet per <br /> mile. Soo Exhibits 2 and 3. <br /> FGL Environmental tested the water on a neighbor' s <br /> property for DBCPs and nitrates . Mater was not <br /> available at the site. The results are listed in <br /> Exhibits 5 and 6. <br /> SOILS AND PERCOLATION TEST <br /> Per the "Soils of San Joaquin County" , as published by <br /> the University of California, the soil is San Joaquin <br /> Loam. <br /> On August 20, 1993, we ran percolation tests on Paroels <br /> 1 and 2 . It was found that the peroolation rates were <br /> 27 and 48/min/inoh respectively. See Exhibit 4. <br /> In all oases the test holes were 6" diameter by 3 feet <br /> deep. The tests were run under permit and inspection <br /> by the San Joaquin County health Department. <br /> CONCLUSION <br /> The area is suitable for septic systems. It is <br /> recommended that 12 ,000 S.F. be reserved on Parcels 1 <br /> and 2 . <br /> Based upon the percolation test and interviews, it is <br /> my professional opinion that a septic system will not <br /> adversely effect the first Nater aquifer. <br />