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I <br /> TABLE 2 <br /> x. .* •: <br /> SOIL SAMPLING PROFILE DATA UNDER <br /> ;n. M,. ; <br /> EXISTING LEACHFIEIID <br /> Soil Sample Depth Nitrate-Nitrogen Total Kjeldahl Ammonium Soil Texture <br /> From Leachfield Concentration Nitrogen (TKN) Concentration <br /> Concentration <br /> 0-24 inches 54%Sand <br /> (Composited) 12 ppm 771 ppm BDL 24%Silt <br /> Sample ID: LF024 22%Clay <br /> Sam <br /> p Sandy Clay Loam <br /> Five Foot Depth 6 ppm 414 ppm BDL 58%Sand <br /> Sample ID: LF5' 26%Silt <br /> 16%Clay <br /> Sandy Loam <br /> Eight Foot Depth 6 ppm 462 ppm BDL 56%Sand <br /> Sample ID: LF8' 22%Silt <br /> 22%Clay <br /> SanLSilt <br /> Twelve Foot Depth 6 ppm 487 ppm BDL <br /> Sample ID: LF12' <br /> S <br /> C. PERCOLATION TEST RESULTS <br /> At 0930 on August 4, 2004, one shallow percolation test boring of 38.5 inches in depth was hand- <br /> drilled in an area that would be the most logical location for the leachfield of a second unit dwelling <br /> on proposed Parcel 1. This location is denoted on the attached Tentative Map. A deep boring <br /> representative of sumps or seepage pits was not drilled and tested since seepage pits are not allowed <br /> in this area, and sumps are strongly discouraged. From a nitrate loading standpoint, it is much more <br /> beneficial to install the leachlines as high in elevation as possible, which would preclude the <br /> installation of deeper septic system structures. Perc tests were also not conducted on the Designated <br /> Remainder, pursuant to EHD requirements. <br /> After drilling with a four-inch diameter auger, the sidewalls were scored with a pry-bar and the loose <br /> material removed. Two inches of fine gravel was placed at the bottom and three-inch perforated <br /> PVC pipe was inserted. The test boring was pre-saturated with 12 inches of water, Approximately-24-_ <br /> hours be �klle..stai.�-e£�erc-�te�ting� <br /> On August 5, 2004,percolation testing commenced. There no stand' ater after t 4-hour <br /> soak period; therefore, EHD Percolation Test Procedure #2 was performed. However, EHD <br /> Procedure #3 could have been run because the first 6 inches of water seeped away before the end of <br /> the first 30 minutes. Readings could have been taken every 10 minutes, over a one hour period. By <br /> running the perc test for four hours, maximum soil saturation was introduced giving a pert rate <br /> indicative of"worst-case scenario"conditions. <br /> Page -5- <br /> Chesney Consulting <br />