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GROUND WATER <br /> From the San Joaquin County Flood Control and Water Conservation <br /> District Study we find that the ground water depth is approximately 150 <br /> feet and that the gradient falls southwesterly at approximately 10 feet per <br /> mile. See Exhibits 2 and 3. <br /> The water was tested by F. G. L. Laboratory of Stockton. The results are <br /> included as Exhibits 4A and 4B. <br /> SOILS AND PERCOLATION TEST <br /> Per the "Soils of San Joaquin County", as published by the University of <br /> California, the soil is predominantly San Joaquin Loam. <br /> In June, 1995, we ran percolation tests on all four parcels. For parcels 1, <br /> 2, and 3 the results of the percolation tests were 24, 11 and 17 min/inch <br /> respectively. Due to the wide variance, it is recommended that 10,000 S.F. <br /> be reserved for leach area without site specific tests. The Designated <br /> Remainder test result was 40 min/inch. 12,000 S.F. is the recommended <br /> reserve area for this parcel. See Exhibits 5, G, & 7. <br /> In all cases the test holes were 12 diameter by 3 feet deep. The tests were <br /> run under permit and inspection by the San Joaquin County Health <br /> Department. <br /> CONCLUSION <br /> Based upon the percolation test and interviews, it is my professional <br /> opinion that a septic system will not adversely effect the first water aquifer. <br /> LIMITATIONS <br /> The conclusions of this report are based on the information provided <br /> regarding the existing and proposed development, and on the site <br /> conditions as they existed at the time we performed the percolation test. It <br /> was assumed that the test hole and percolation test results are <br /> representative of an average of the subsurface conditions in the general <br /> area. <br />