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U.S. Department of Energy
Office of Scientific and Technical Information

Effectiveness of surface mine sedimentation ponds

Technical Report ·
OSTI ID:7325160
An in-field evaluation of the effectiveness of sediment ponds in reducing suspended solids in the runoff from surface mining activities was performed. Nine selected sedimentation ponds in the three eastern coal-mining States of Pennsylvania, West Virginia, and Kentucky were sampled under two different operating conditions--a baseline and a rainfall event. Their theoretical and actual efficiency of removal of suspended solids were computed and compared. In general, poor construction and inadequate maintenance of these ponds were found to be the major problem areas. The ponds had generally higher removal efficiencies during the baseline sampling period and much lower efficiencies during the storm event. The theoretically predicted efficiency of the ponds was essentially the same as the actual efficiency under baseline conditions. During the rainfall event, there was generally little or no correlation between the theoretical and actual efficiencies. The predicted efficiencies were found to be much higher than the actual efficiencies during the rainfall event in most cases. (GRA)
Research Organization:
Hittman Associates, Inc., Columbia, MD (USA)
OSTI ID:
7325160
Report Number(s):
PB-258917
Country of Publication:
United States
Language:
English