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Generally the surface soils consisted of a sandy foam. As shallow <br /> percolation tests proved adequate for conventional septic systems, no further soil 1 <br /> exploration was necessary. <br /> Two percolation tests were performed in holes with 8 inch in diameters by <br /> 42 inches deep backfilled with 3 inches of gravel. The two holes were filled with <br /> water 24 hours prior to running the test. The test holes for Parcels 1 and 2 were <br /> performed under a 4 hour test. The last half hour of the tests readings for Parcels <br /> 1 and 2 were witnessed by a County Health Official and the test data obtained is <br /> enclosed in the Appendix. <br /> Parcel Number Percolation Rate <br /> 1 2 inches/hr. <br /> 2 1 3/4 inches/hr. <br /> VII. GROUNDWATER <br /> A Groundwater test was performed on the existing well. The results can be <br /> found in the appendix. <br /> VIII. CONCLUSION <br /> Based on the results of the percolation tests and the soil profile, it is Dillon <br /> & Murphy's opinion that the existing homesites resulting from the proposed parcel <br /> split of the subject property are suited for a typical on-site sewage disposal <br /> system. The proposed system however, should be properly designed and installed <br /> according to the current San Joaquin County criteria. <br /> Based on the depth to ground water in the area, and the size of the <br /> proposed parcels, it is our opinion that the installation of any new proposed septic <br /> system, if properly installed, should not adversely affect the quality of ground <br /> water in the area. <br /> 2 <br /> CA0241\MURRY RD SOILS REPORT 071902 <br />