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for Hennepin County, released in July 1984, indicates this area is <br />not within any protected water or wetland areas (see Figure 3), this, <br />DNR authoriaztion to excavate o- fill this site is not required. <br />On Wednesday, August 1, 1984, soil borings were taken in <br />the vicinity of the proposed pond locations as shown in Figure 2. <br />These borings confirmed the existence of Glencoe soils in the low <br />areas of both Lots 2 and 3. The water table was determined to be <br />approximately at elevation 1030.5. This elevation is about 1.5 feet <br />below the existing grade in -pie vicinity of the proposed pond on Iot <br />2, and 2.5 feet below the existing grade in the vicinity of the pro- <br />posed pond on Lut 3. <br />RECOMMENDATIONS <br />It has be-:, proposed that one pond be excavated on each lot <br />(see the pond location plan Figure 2). The ponds will enhance the <br />aesthetic value of the property; however the benefits for wildlife <br />habitat is somewhat limited. Among the reasons for this is the close <br />proximity of the ponds tc, the single family dwellings as well as the <br />absence of proper vegetative cover for wildlife nesting and brooding <br />areas surrounding the ponds. <br />The ponds themselves should not exceed 8000 square feet in <br />area at the top. A meandering shaped pond of approximately 50 to <br />60 feet wide and 1,,0 to 120 feet in length is recoamen(?ed. The min- <br />imum excavated depth should be approximately 3-1/2 feet and the max- <br />imum excavated depth should not exceed 5 feet. Ar-uming an average <br />excavated area of 5000 square feet and an average depth of 4.5 feet <br />amounts to Nearly 835 cubic yards per pond. If the excavated soil <br />is not utilized as fill material elsewhere, it should be leveled <br />adjacent to the pond to a maximum depth of 2 feet. <br />As discussed earlier, the excavated soil consists of silty <br />clay. The characteristics of this soil is that it is very sticky <br />and soft when wet, hard and difficult to mold when dry. It is a <br />most difficult soil to handle by mechanical means, especially hand <br />tools and small scale equipment. Due to the wet soil conditions and <br />