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Preliminary evaluation of a sediment pond draining a surface mined watershed

Conference · · Univ. Ky., Off. Eng. Serv., (Bull.); (United States)
OSTI ID:5340483
Runoff and sediment data for a reclaimed surface mined watershed and its sediment pond were analyzed to determine the pond trap efficiency and influent/effluent sediment and flow relationships. Reclamation practices on the watershed included topsoiling, a good vegetative cover, a rock chute, diversions, and dry dams. Relationships were developed to predict the total pond flow and the sediment concentration when the flow rate on the hydrograph recession was one-half the storm peak rate, and to predict the peak pond influent sediment concentration as a function of the same recession concentration. The trap efficiency for the study sediment pond averaged 93.7 percent as determined by storm influent/effluent sediment masses. The average storm influent sediment concentration was 23 times larger than the average effluent pond sediment concentration of 372 mg/1, and the average peak storm effluent sediment concentration was 1.55 times greater than the average effluent sediment concentration.
Research Organization:
Science and Education Administration, Coshocton, OH
OSTI ID:
5340483
Report Number(s):
CONF-801263-
Conference Information:
Journal Name: Univ. Ky., Off. Eng. Serv., (Bull.); (United States)
Country of Publication:
United States
Language:
English