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Approximately one year ago, the large pond was completely dry. During this time, a contractor <br /> windrowed the manure on the bottom of the pond and was planning to transport it off-site. <br /> However, only one truckload of manure was taken off-site and the remaining windrows still <br /> exist. During this past winter of 1995/1996, the smaller pond reached its holding capacity from <br /> the influx of rainwater. The subsequent overflow had to be diverted to the larger pond. <br /> Consequently, due to the manure windrowing and the manure water currently in the large pond, <br /> the soil elevation of the pond bottom can not be determined. <br /> FINDINGS <br /> SOIL BORINGS <br /> Our investigation began by assessing the subsurface soil structure, water table depth and first <br /> aquifer water quality. Soil borings and sampling were accomplished using a portable, trailer- <br /> mounted drill rig to drill to the north, west and south of the large pond. We could not power <br /> drill on the east side of the pond due to property line and topographical constraints. <br /> Consequently, the east boring was done by hand drilling. <br /> Boring 1-North was drilled first, 575 feet north of the large pond. This boring location and <br /> distance were selected to measure the water table depth without influence from the ponds. <br /> During the drilling process, three separate soil samples were retrieved: One at five feet, one at <br /> the capillary fringe (vadose zone) and one from the saturated formation(phreatic zone). The <br /> hydrometer test results for clay content for each strata are 12%, 21%, 56%, respectively and all <br /> zero percent gravel. Static water level at boring termination and 24 hrs after drilling measured at <br /> 9.5 feet below existing grade. As referenced earlier, the bottom elevation of the pond could not <br /> be determined; therefore, only a guesstimate can be made as to the correlation of the water table <br /> depth at this location and the bottom elevation of the pond. It is our opinion that the static water <br /> level, not influenced from the existing pond water, is approximately one to two feet below the <br /> average elevation of the bottom of the pond. <br /> Boring 2-West was drilled adjacent to the southwest corner of the small and large ponds. Soil <br /> samples for hydrometer clay content testing were again taken at five feet, vadose and phreatic <br /> zones. The clay content is 19%, 11% and 42%, respectively, and zero percent gravel. After <br /> drilling and 24 hrs later, the static water level was measured at 6 feet below existing grade. By <br /> correlating this elevation with the approximate elevation of the pond bottom by sight, it is our <br /> 2 <br /> gg *ality Control Inspection <br />