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TABLE 1 <br /> SOIL PROFILE CHARACTERISTICS AND <br /> ANALYTICAL TEST RESULTS <br /> SAMPLE LOCATION, SAND,SILT AND SOIL SOIL NITROGEN pH AND <br /> SAMPLE DEPTH AND CLAY CLASSIFICATION CONTENT CATION EXCHANGE <br /> (SAMPLE NUMBER) PERCENTAGES CAPACITY <br /> PRIMARY DISPOSAL 90%,4%,6% Sand 3 ppm NO3-N 6.7 3.7 meq/100g <br /> FIELD (With some silt) <br /> 2 FT DEPTH <br /> (2 FT) <br /> PRIMARY DISPOSAL 92%,2%,6% Sand 3 ppm NO3-N 7.5 3.9 meq/100g <br /> FIELD <br /> 5 FT DEPTH <br /> i <br /> (5 FT) <br /> PRIMARY DISPOSAL 92%,2%,6% Sand 3 ppm NO3-N 7.2 3.8 meq/100g <br /> FIELD <br /> 7 FT DEPTH <br /> (7 FT) <br /> PRIMARY DISPOSAL 94%,2%,4% Sand 3 ppm NO3-N i.3 3.3 meq/100g <br /> FIELD (Medium grain) <br /> 10 FT DEPTH <br /> (10 FT) <br /> C. PERCOLATION TEST RESULTS <br /> SSS§ 6.2. To assess the permeability of the proposed filter bed areas, two percolation tests were <br /> completed in the locations depicted in the Site Plan found in Appendix C. The test depths were 24 <br /> and 38 inches below existing grade, giving a comparatively detailed observation of subsurface <br /> permeability between these two strata. Only the 38-inch test depth is recognized as"official"by <br /> EHD. These test depths represent the approximate elevation of the future soil-effluent interface. <br /> SSS§ 6.3/On October 30, 2006, the two perc test borings were hand-drilled in the referenced <br /> locations. The sidewalls of each boring were not scored with a pry-bar since there was no smearing <br /> of the sidewalls due to the sandy nature of the native soils. If the soil contained higher percentages <br /> of silt and clay, then scoring the sidewalls"opens"potentially smeared surfaces. Two inches of fine <br /> gravel was placed at the bottom and three-inch perforated PVC pipe was inserted in each test boring. <br /> Each boring was pre-saturated with 12 inches of water at 0900 hrs, 24 hrs before the start of testing. <br /> SSS§ 6.4,6.5/On October 31, 2006,percolation testing commenced. No standing water was <br /> observed after the 24-hr soak period in any of the test borings. Consequently, EHD Perc Test <br /> Procedure#2 was conducted in which testing was done over a 3.5 hour period to induce maximum <br /> soil saturation. Due to the sandy nature of the soils, EHD Perc Test Procedure#1 could have been <br /> run in which a one-hour test is performed instead of a four-hour test. <br /> 4 <br /> Chesney Consulting <br />