Some coal ash is managed in long-term structures on Ameren power plant properties. These specially built structures allow Ameren to manage fly and bottom ash. The two types of long-term ash storage facilities are:
- Ash Storage Ponds
The ash is delivered to the pond mixed with water. In these ponds, the ash settles and the excess water is discharged in accordance with the facility permit.
Ameren actively manages 24 ash ponds and five landfills.The ponds range in volume from 8,000 acre-ft. to less than 10 acre-ft.
In a voluntary agreement with the Illinois Environmental Protection Agency, Ameren has begun a program to monitor groundwater around five of our Illinois coal-fired power plants.
Labadie Utility Waste Management Facility
- Ash Storage Landfills
Landfills receive the ash in a mainly dry form (a small amount of moisture is added for handling and to avoid dusting).
Ameren presently manages five landfills and is pursuing permits for additional landfills. The landfills range from 200 - 1,000 acres and usually reach a height of 100 feet. All landfills are subject to environmental requirements and some have been developed to manage ash from other generating facilities.
Ameren Missouri is planning to develop a utility waste management facility at the Labadie Power Plant on 400 acres east of the plant. The levee-protected property is between the Missouri River and the hills to the south in Franklin County, Mo.
The facility will provide long-term or permanent storage of coal combustion products which are the solids produced when coal is burned. These solids are either collected from the furnace (bottom ash) or they are removed from the flue gas (fly ash or future scrubber waste). Current plans call for construction to start in 2013, with operation beginning in late 2014 or early 2015. The project is subject to approval from the Missouri Department of Natural Resources, Franklin County, and other federal, state, county and local agencies.