Laserfiche WebLink
4. CRDA 1 Road <br />5. Cameo Borrow Area 1 Sump <br />6. Pond 7 <br />7. Pond 9 <br />In order to receive a Phase II bond release, the reclaimed areas cannot contribute <br />suspended solids to stream flow runoff outside the permit area in excess of pre -mining <br />levels. The following pages demonstrate that the reclaimed areas are contributing <br />fewer suspended solids than the adjacent areas. A summary of the results for each <br />reclaimed area is shown below. A detailed description of factor derivation and the full <br />calculations begins on page 5. <br />CBA #2 and Ponds 6 & 10 <br />SOIL LOSS CALCULATION <br />AREA <br />R <br />K <br />LS <br />C <br />P <br />A <br />Adjacent Area -CBA #2 <br />30 <br />0.24 <br />0.32 <br />0.192 <br />1.0 <br />0.44 <br />CBA #2 <br />30 <br />0.24 <br />0.21 <br />0.191 <br />1.0 <br />0.43 <br />Adjacent Ponds 6 & 10 <br />30 <br />0.24 8.400 <br />0.192 <br />1.0 <br />11.62 <br />Ponds 6 & 10 <br />30 <br />0.24 <br />1.425 <br />0.191 <br />1.0 <br />1.96 <br />It can be seen from the above calculation that the revegetated area at CBA #2 and the <br />Ponds 6 & 10 areas may loose about 0.43 and 1.96 tons per acre per year, respectively, <br />to erosion. The CBA #2 and Ponds 6 & 10 adjacent areas which represent the baseline <br />conditions may lose 0.44 and 11.62 tons per acres per year. Based on this <br />demonstration, the reclaimed areas are not contributing suspended solids in excess of <br />re -mining levels. <br />SL -9 Tab -9, Page 2 Revised 10/18/2016 <br />