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<br /> <br />16 <br />APPENDIX A <br />PROCEDURES FOR SOIL BORING AND PERCOLATION <br />TESTS <br /> <br /> <br />A. Soil Borings – where soil borings are required, they shall be <br />made as follows: <br /> <br /> 1. All soils borings shall be taken, analyzed and reported by a <br />registered professional soil classifier or qualified designer. <br /> <br /> 2. Each boring or excavation shall be made to a depth of at least <br />six feet deep. <br /> <br /> 3. A soil texture description shall be recorded by depth and <br />notations made where texture changes occur. <br /> <br /> 4. Measurements shall be made to determine the highest known <br />water table by recording the first occurrence of active mottling <br />observed in the hole. <br /> <br /> 5. Laboratory or qualified designer analysis to determine particle <br />size, including percent sand, silt, and clay. <br /> <br />B. Percolation Tests – where percolation tests are required they <br />shall be made as follows: <br /> <br /> 1. Test hole dimensions and locations: <br /> <br />a. Each test hole shall be six to eight inches in diameter, <br />have vertical sides, and be bored or dug to the depth <br />of the bottom of the proposed individual sewage <br />treatment system. <br /> <br /> <br /> <br /> <br /> <br />