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Stoneman Generating Station
|This article is part of the CoalSwarm coverage of coal plants|
E.J. Stoneman Generating Station is a coal-fired power station owned and operated by DTE Energy in Cassville, Wisconsin.
The plant was shut down in 2015.
In June 2008, DTE Energy announced plans to purchase the E.J. Stoneman Power Plant from Integrys and convert its 50MW of coal capacity to burn wood waste. Dairyland Power Cooperative (La Crosse, Wis.) is purchasing the entire 40 MW output of the waste burning facility to supply its member cooperative consumers.
The Stoneman Station was owned and brought into service by Dairyland in 1951. Dairyland sold it in the 1990s. Current owner DTE Energy Services converted the Stoneman Station to a biomass facility, selling the energy back to its original owner.
In 2013, the biomass facility was fined $150,000 by the state of Wisconsin for numerous violations of the facility air pollution control permit.
In 2015, it was announced that Stoneman would close by the end of the year following the termination of a power purchasing agreement with Dairyland Coop. During the five year period of biomass operation, neighbors had also complained of charcoal-like soot residue on the homes and vehicles. DTE cited economics of the location for the closure rather than the failure of biomass electrical generation in general. Low natural gas prices benefiting competitors and high transportation costs for biomass fuel were cited as reasons for closure.
Study finds dangerous level of hexavalent chromium at Stoneman Station waste site
The study "EPA’s Blind Spot: Hexavalent Chromium in Coal Ash," released by EarthJustice and the Sierra Club in early February 2011, reported that the level of hexavalent chromium, a highly potent cancer-causing chemical, at a coal ash site associated with the Asheville Plant was 83 parts per billion. That level is 4,150 times as high as California's drinking water goal, and 66% above North Carolina's groundwater standard. In all, the study cited 29 sites in 17 states where hexavalent chromium contamination was found. The information was gathered from existing EPA data on coal ash as well as from studies by EarthJustice, the Environmental Integrity Project, and the Sierra Club. It included locations in Alabama, Arkansas, Delaware, Florida, Illinois, Indiana, Minnesota, Massachusetts, North Carolina, North Dakota, Nevada, Ohio, Oklahoma, Pennsylvania, Tennessee, Virgina and Wisconsin. In Wisconsin, the Lemberber Landfill coal waste site and Dairyland Power Cooperative's Stoneman Generating Station's ash disposal pond was reported as having high levels of hexavalent chromium.
According to the report, the electric power industry is the leading source of chromium and chromium compounds released into the environment, representing 24 percent of releases by all industries in 2009.
A press release about the report read:
- Hexavalent chromium first made headlines after Erin Brockovich sued Pacific Gas & Electric because of poisoned drinking water from hexavalent chromium. Now new information indicates that the chemical has readily leaked from coal ash sites across the U.S. This is likely the tip of the iceberg because most coal ash dump sites are not adequately monitored.
- Owner: Mid-America Power LLC
- Parent Company: DTE Energy
- Plant Nameplate Capacity: 53 MW (Megawatts)
- Units and In-Service Dates: 18 MW (1952), 35 MW (1952)
- Location: 716 Jack Oak Rd., Cassville, WI 53806
- GPS Coordinates: 42.7079, -90.9843
- Electricity Production: 66,759 MWh (2005)
- Coal Consumption:
- Coal Source:
- Number of Employees:
- CO2 Emissions: 91,288 tons (2005)
- SO2 Emissions: 873 tons (2005)
- SO2 Emissions per MWh: 26.15 lb/MWh
- NOx Emissions: 175 tons (2005)
- Mercury Emissions:
Articles and Resources
- Reber, Craig (January 3, 2016). "Cassville plants power down in 2015".
- "Cassville's E.J. Stoneman Coal Plant to be Converted to Burn 100 Percent Wood Waste," Clean Wisconsin, June 2, 2008.
- "DTE Stoneman Station Biomass Power Plant Online" Yahoo! finance, Oct. 25, 2010.
- "DTE Energy Services Signs Purchase Agreement for Stoneman Power Plant," DTE Energy, May 29, 2008.
- "DTE Stoneman Station (Cassville, Wis.)," Dairyland Power Cooperative, accessed September 2012.
- "Cassville power plant ordered to pay judgment" (June 5, 2013).
- Montgomery, Jeff (July 24, 2015). "2nd Cassville power plant closing".
- Midwest utilities plan retirements for coal, gas, biomass power plants (October 14, 2015).
- "EPA’s Blind Spot: Hexavalent Chromium in Coal Ash" Earthjustice & Sierra Club, February 1, 2011.
- "Damage Case Report for Coal Compustion Wastes," August 2008
- U.S. EPA Proposed Coal Ash Rule, 75 Fed. Reg. 35128
- EarthJustice, Environmental Integrity Project, and Sierra Club, "In Harm's Way: Lack of Federal Coal Ash Regulations Endangers Americans and their Environment," August 2010
- EarthJustice and Environmental Integrity Project, "Out of Control: Mounting Damages from Coal Ash Waste Sites," May 2010
- "Coal ash waste tied to cancer-causing chemicals in water supplies" Alicia Bayer, Examiner.com, February 1, 2011.
- Existing Electric Generating Units in the United States, 2005, Energy Information Administration, accessed Jan. 2009.
- Environmental Integrity Project, "Dirty Kilowatts: America’s Most Polluting Power Plants", July 2007.
- Facility Registry System, U.S. Environmental Protection Agency, accessed Jan. 2009.
- Carbon Monitoring for Action database, accessed Feb. 2009.
- NETL Coal Power Plant Database, National Energy Technology Laboratory, U.S. Dept. of Energy, 2007.
- AirData Query Database, U.S. Environmental Protection Agency, accessed April 2009.
Related SourceWatch Articles
- Existing U.S. Coal Plants
- Coal plant conversion projects
- Wisconsin and coal
- United States and coal
- Global warming
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