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VI. SOIL PROFILE AND PERCOLATION TESTS <br /> Four test holes were excavated to depths of 3.5 feet on each parcel. The purpose <br /> of the test holes was to determine percolation rates in these areas. The holes were <br /> prepared in accordance with County Standards. The shallow test holes did not <br /> percolate adequately for use as a conventional septic system. Deep tests were <br /> performed by Kleinfelder. See Appendix. <br /> Generally, the surface soils consisted of surficial clay underlain by <br /> interbedded layers of clayey and sandy silts and silty sands as stated by Kleinfelder <br /> in their report included in the Appendix. Deep percolation tests were performed by <br /> Kleinfelder. In the provided report located in the Appendix by Kleinfelder, the <br /> description of the soil lithology and soil profile pits are noted. See the section <br /> labeled "Field Explorations and Testing." For the hole condition after the 24 hour <br /> soak period and all information discussing percolation rates, see the same section. <br /> Deep Tests <br /> Parcel Number Percolation Rate <br /> 1 1 1 .9 minutes/inch <br /> 2 2.6 minutes/inch <br /> 3 10.4 minutes/inch <br /> 4 10.4 minutes/inch <br /> VII. GROUNDWATER <br /> A groundwater test was performed on the existing well. The results can be <br /> found in the appendix. The sample was taken by Mike Toy of Dillon & Murphy <br /> from a spigot at the house located at 11665 E. Tokay Colony Rd., Lodi, California. <br /> It was immediately driven to FGL laboratories for analysis. The water samples <br /> were tested for nitrates and DBCP. (see appendix for results.) <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 system <br /> with pits. The proposed system however, should be properly designed and <br /> installed according to the current San Joaquin County criteria. <br /> 2 <br /> C:\0226\Soils Suitability Report 052103 <br />