Coal combustion residuals CCRs , or coal ash, is the waste from coal-fired power plants, and is composed of contaminants like mercury, cadmium, arsenic and chromium, which are associated with serious health effects. Coal ash can be disposed of in two main ways: by placing it in a dry landfill, or dumping it in a surface pond. The issue posed by dry landfills is that the wind can carry away this toxic coal ash and cause pollution i. Coal ash ponds trap the ash so that it cannot be carried away by the air, however it does pose issues of its own. When coal ash is combined with water, it frees the heavy metals found in coal combustion residuals from their bonds. When a liner is not present, this allows the heavy metals to leach out of the pond and into the groundwater.
What a Real Coal Ash Cleanup Looks Like
How Gerrymandering Silences the Environmental Vote - Nexus Media News
The U. EPA and Duke Energy signed an administrative order for the site cleanup. On February 2, a drainage pipe burst at a coal ash containment pond owned by Duke Energy in Eden, North Carolina, sending 39, tons of coal ash into the Dan River. In addition to the coal ash, 27 million gallons of wastewater from the plant was released into the river. CNN reported that the river was turned into an oily sludge. The river is a drinking water source for communities in North Carolina and Virginia. However, further tests showed the ash to contain pollutants including but not limited to arsenic, copper, selenium, iron, zinc and lead.
Mapping the Coal Ash Contamination
The present study assesses the impact of the ash ponds on the groundwater quality in the sub-watershed surrounding the ash ponds in the vicinity of Koradi near Nagpur in Maharashtra, India. Observation wells have been set up for monitoring of water level and groundwater quality for major cations, anions and trace elements. Samples 23 nos.
Our lakes, rivers, streams and creeks provide us with water to drink, add character to our most beautiful natural places, and give us places to fish and swim. Unfortunately, our waterways are under constant threat of pollution from dangerous facilities located along their banks. These facilities are accidents waiting to happen. Coal ash ponds store billions of gallons of coal plant ash waste — residual from burning coal that is mixed with water for storage — which is often highly toxic.