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A deep percolation test was performed by Neil O. Anderson Company on July 18, 2002. For <br /> results, see Appendix. <br /> The test performed by Dillon & Murphy was a shallow percolation test utilizing a hole twelve <br /> inch diameter by 42 inches deep hole backfilled with 3 inches of gravel. The hole was filled 6" <br /> deep with water 24 hours prior to running the test. The test hole was performed under a 4 hour <br /> test. The last hour of the test readings was witnessed by a County Health Official and the test <br /> data obtained is enclosed in the Appendix. The results are as follows: <br /> Test Number Percolation Rate <br /> 1 0 inches/hr. <br /> Since the shallow test hole failed, Neil O. Anderson was retained to perform a deep test. Their <br /> information is shown in the Appendix and their results are as follows: <br /> Test Number Percolation Rate <br /> 1 1.44 in/hr. <br /> 2 6.48 in/hr. <br /> VII. GROUNDWATER <br /> A groundwater test was performed on an existing well adjacent to the property. The <br /> results can be found in the Appendix. <br /> VIII. CONCLUSION <br /> Based on the results of the deep percolation test and the soil profile, it is Dillon & <br /> Murphy's opinion that the existing homesite resulting from the Site Approval of the subject <br /> property is suited for a typical on-site sewage disposal system utilizing leach lines with pits. The <br /> proposed system should be properly designed and installed`according to thecurrenf-SanToaquin <br /> County criteria. <br /> It should be noted that the location of the percolation test was chosen near the proposed <br /> disposal field. <br /> Based on the depth to ground water in the area, it is our opinion that the installation of <br /> any new proposed septic system, if properly installed, should not adversely affect the quality of <br /> ground water in the area. <br /> IX. LIMITATIONS <br /> The conclusions of this report are based on the information provided regarding the <br /> proposed development, the use of the subject property, and the site conditions as they existed at <br /> the time we excavated our test holes and performed the percolation tests. It was assumed that the <br /> test hole and percolation tests results are representative of the subsurface conditions in the <br /> general area. <br /> 2 <br /> C:\0223\FRANKE SOILS REPORT 0071902 <br />