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Fransen Property <br /> Page No. 3 <br /> And dibromochloropropane (DBCP) . Test results indicated that DBCP <br /> was non-detected and the level of nitrate was 0 . 4 mg/l, which is <br /> well below the Maximum Contaminate Level (MCL) of 45 mg/l . A copy <br /> 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 existing and proposed homesite in order to determine <br /> the soil profile in the general area. For approximate location of <br /> the test holes (PT) see the Parcel Map in the Appendix. The soil <br /> profile holes were logged by an engineer and a description of the <br /> soils encountered in each hole is contained in the Appendix. The <br /> surface soils consisted of a stiff black fine sandy silty clay. <br /> The surface soils were underlain by a brown silty clayey fine to <br /> medium sand. 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 18 . 9 <br /> PT-2 8 36 15 . 9 <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 homesites resulting from the proposed parcel <br /> split should be suitable for use of on site sewage disposal <br /> systems. Although the shallow percolation test had reasonable <br /> P pERS0 <br /> D �+ <br /> Z W <br /> A. <br /> 9S S p G\ <br /> P <br />