Laserfiche WebLink
energy fuels corporation <br />Mr. Stanley V. D7ay <br />August 28, 1979 <br />Page Four <br /> <br />to provide proper discharge rates to maintain the theoret- <br />ical detention times. For a large pond, this dewatering <br />device will be a fixed structure. On smaller ponds, de- <br />watering devices will consist of a fixed structure or a <br />portable pumping system. Additional detail on the fixed <br />dewatering device is presented in Exhibit A. <br />Sediment will be removed from all sedimen- <br />tation ponds when the volume of sediment accumulates to 60B <br />of the design sediment storage volume. The methods for <br />determining the amount of sediment accumulation include the <br />Universal Soil Loss Equation. Upon dewatering, accumulated <br />sediment will be removed and placed in then-existing topsoil <br />stockpiles if the sediment meets the appropriate topsoil <br />criteria. <br />The entire embankment of each pond including <br />the surrounding areas disturbed by construction will be <br />• stabilized against erosion by a vegetative cover and other <br />means immediately after the embankment is completed. The <br />active upstream face of the embankment where water will be <br />impounded will be riprapped or otherwise stabilized. Areas <br />in which the vegetation is not successful or where rills and <br />gullies develop will be repaired and revegetated. <br />This should adequately respond to your inquires. <br />If you need any further information, please contact me again. <br />Very truly yours, <br />~.S/ .JFIMES ~. ~R/rlo~l <br />James A. Larson <br />President <br />JAL:er <br />Enclosure <br /> <br />