Ash ponds, a type of surface impoundment, are a widely used treatment technology at coal-fired plants.
2.
There is very little permanent water in the area, other than stock tanks and surface impoundments.
3.
All hydraulic applications ( tunnels, dams, canals, surface impoundments, and floating covers ) use these geosynthetics as well.
4.
Coal ash from the plant is disposed at surface impoundments in West Virginia, across the river from the plant.
5.
The treatment of process water created a sludge that was stored onsite in drying beds and in surface impoundments.
6.
A safer, more conventional means of storing untreated water would be above the ground, in reservoirs or other surface impoundments.
7.
In order for this federal regulation to be effective, there are some major requirements that surface impoundments and landfill facilities must follow.
8.
However, more than half of the coal ash produced is dumped into surface impoundments ( wet storage ) or landfills ( dry storage ).
9.
The judge also wrote that " The construction of valley fills and surface impoundments pursuant to " the general permit " is not a mere possibility ."
10.
Big Sandy Plant's Fly Ash surface impoundment is on the EPA's official June 2009 list of Coal Combustion Residue ( CCR ) Surface Impoundments with High Hazard Potential Ratings.
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