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Biomass power plant settles pollution violations

Published On: Jun 05 2013 08:16:52 AM CDT

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CASSVILLE, Wis. -

The operator of a biomass power plant on the Mississippi River in Cassville will pay $150,000 to settle air pollution violations.

DTE Stoneman and the state Department of Justice have signed the agreement in Grant County Circuit Court. DTE Energy Services, of Ann Arbor, Mich., bought the plant in 2008 and later converted it from coal to biomass, including burning renewable wood waste.

A complaint says the plant failed to operate an air pollution control device to control small particle emissions during startups between August 2010 and January 2011. The Milwaukee Journal Sentinel reported fires started on "multiple occasions" in the biomass storage piles, in violation of the state's open burning laws.

The plant was converted to biomass power in 2010. It sells its power to Dairyland Power Cooperative of La Crosse.

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