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Reclamation Unit: South Berm. As has been determined by measurements and cross-sectioning of <br /> the South Wall (see following cross-section diagram), it appears there is no need to even affect the floor <br /> of the South Basin. Thus the excellent growth here composed of trees, willows, cattails and other fairly <br /> common wetland species can remain. If the land is eventually developed this basin may be completely <br /> filled, but if development does not occur then the basin can provide good wildlife habitat and <br /> opportunities for recreation. In effect all that is needed on the south side of the pit is basically to slightly <br /> cut down the crest of the berm to reduce the slope grades on mainly the south side of the berm. This <br /> process should have no impact on the floor of the basin and very little impact on the north side of the <br /> berm. <br /> Considering the long history of this berm(33 years since created) and the fact that it has never <br /> shown signs of instability and shows no signs today, simply leaving it as is and concentrating efforts on <br /> the much more serious problems elsewhere would very likely not be an unwise decision. However,the <br /> following plan describes a minimal treatment to improve the grade of the south side of the berm. <br /> For the most part the north/south portion of the entire South Berm on the west side of the basin <br /> can remain as is out to nearly the point where the structure turns to the east. The west side of this <br /> north/south portion is fairly steep,but it is stable and shows only minor erosion. <br /> From the point where the berm system turns east to the unfinished and eroded east end of the <br /> berm, only a little work is needed. The object is to reduce the slope on the south side. This can be done <br /> by using a very versatile method illustrated in the South Berm Cross-section diagram. <br /> Basically a more suitable south slope can be achieved by reducing the height of the berm by a <br /> few feet and cutting off part of the southern portion of the berm and depositing that on the south slope <br /> followed by revegetation. This would reduce the steep (about 1.7:1)upper portions of the berm to 3:1. <br /> How much height reduction is controlled by what width at the top of the berm is acceptable. In the <br /> example, only three feet is removed from the top along with a notch in the south edge to maintain the <br /> current 15 foot width at the top. Exactly what combination of cutting and filling is preferred is primarily <br /> controlled by the type of equipment that can access the top of the berm. The object is to create a 3:1 <br /> slope in the narrow(50') gap between the top of the berm and the adjacent developed property so no <br /> problems are caused and the drainageway that exists along part of the north side of the privacy fence is <br /> not obstructed. <br /> The creation of the more gradual slope on the south side is a matter that involves the <br /> establishment of adequate vegetation cover to limit erosion of this slope. As a rule slopes that are steeper <br /> than 3:1 are increasingly difficult to revegetate if the slope is south and sometimes west facing. The hot, <br /> Vollmer Pit Technical Revision June 2018 Updated Reclamation Plan Page 18 of 26 <br />