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Esenarro Soil Suitability Study <br /> Page No. 3 <br /> property was sampled on March 28, 1995 and tested for the presence <br /> of nitrates and dibromochloropropane (DBCP) . Test results <br /> indicated that DBCP was non-detected and the level of nitrate was <br /> 51 mg/l , which is above the Maximum Contaminate Level (MCL) of 45 <br /> mg/l . A copy of the test results are included in the Appendix. <br /> VI . SOIL PROFILE AND PERCOLATION TESTS <br /> Two test holes were excavated to a depth of 10 feet in the <br /> areas of the proposed homesites in order to determine the soil <br /> profile in the general area. For approximate location of the test <br /> holes (PT) see the Parcel Map in the Appendix. The soil profile <br /> holes were logged by an engineer and a description of the soils <br /> encountered in each hole is contained in the Appendix. The surface <br /> soils consisted of a moist, medium dense fine sandy silty clay. <br /> The surface soils were underlain by a moist-saturated fine sandy <br /> clayey silt. For a more detailed description of the soils <br /> encountered see the log of test holes. <br /> Shallow ( 36" deep) percolation tests were performed at each of <br /> the test hole locations. An 8 inch diameter hole was excavated and <br /> 2 inches of gravel was placed in the bottom of each hole. A 3 inch <br /> diameter perforated pipe was then placed and backfilled with <br /> gravel . Each of the tests holes were filled with water 24 hours <br /> prior to running the tests. The last half hour of the tests <br /> readings were witnessed by a county health official and the test <br /> data obtained is enclosed in the appendix. The percolation rates <br /> have been adjusted to account for the gravel and pipe backfill . <br /> Calculations for adjustments are on the test data sheets. <br /> A summary of the test results is presented next: <br /> Diameter of Depth of <br /> Test No. Hole ( in. ) Hole (in. ) Percolation Rate (min/in) <br /> PT-1 8 36 29 . 3 <br /> PT-2 8 36 15 . 4 <br /> VII CONCLUSION <br /> Based on the results of the percolation tests, the soil <br /> profile, and the performance of the septic systems in the area, it <br /> is our opinion that the homesite resulting from the proposed parcel <br /> split should be suitable for use of on site sewage disposal <br /> P of Its 0 <br /> a <br /> % W <br /> o � <br /> �SSOG� <br /> P <br />