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4 <br /> 22 April 2009 <br /> AGE-NC-09-1683 <br /> Page 10 of 19 <br /> 4 <br /> DPTHiINTRVA FT®B;SGSOIL.DESCRIP.TION SOIL CLASSIFICATION <br /> 22 - 23 clay CL <br /> 28 -29 clay with sand CL <br /> 33 - 34 silty sand SW <br /> a <br /> 6.0. PERCOLATION TEST INFORMATION <br /> A percolation soil suitability test was preformed on the site under SJCEHD permit No. SR0056874 <br /> on one four-inch diameter soil boring established to a depth of three and one-half feet bsg. <br /> r <br /> 6.1. SITE MAP <br /> See Section 5.1. for a discussion of the site map. <br /> 6.2. NUMBER OF PERCOLATION TESTS PERFORMED <br /> One percolation test was conducted on site. The gradual percolation water in the test hole required <br /> performance of a four-hour percolation test. i <br /> i <br /> i <br /> 6.3. CONSTRUCTION OF PERCOLATION TEST HOLE <br /> On 30 March 2009,one test hole(TH-1)was advanced for a shallow percolation test. The test hole <br /> was advanced using a four-inch diameter hand auger to a depth of 42-inches bsg. The boring was <br /> located more than 100 feet from the current well location and within 100 feet of the proposed septic <br /> system.location. Following bore hole advancement,the sides of the boring were scraped and loose <br /> material was removed from the bore hole. Once the test hole was cleared of loose material, two <br /> inches of gravel were added from the bottom to approximately 40 inches bsg. The test hole was then <br /> filled with water to a depth of 12 inches above the gravel at the time of 0900. Test hole TH-1 was <br /> covered for 24 hours to allow for complete saturation. <br /> I <br /> 6.4. DESCRIPTION OF THE PERCOLATION TEST HOLE - POST SOAK <br /> On 31 March 2009,boring TH-1 was found to be completely dry,but intact and in good condition. <br /> E <br /> Advanced GeoEnvironmental,Inc. <br />