A group of Muscatine residents will be able to pursue their nuisance lawsuit against the Grain Processing Corporation, one of the area’s major polluters for many years. Yesterday the U.S. Supreme Court refused to hear the company’s appeal of a unanimous Iowa Supreme Court decision allowing the lawsuit to be heard in Iowa District Court. The company had argued that the federal Clean Air Act preempts claims like the ones the Muscatine residents are making. (You can see Grain Processing Corp v. Freeman, Laurie, et al on a long list of cases in which the Supreme Court denied certiorari.)

There is no guarantee that the Muscatine residents will win their nuisance lawsuit, but now a District Court will consider the merits of their case. Plaintiffs claim that the Grain Processing Corporation’s facility exposes locals to dangerous levels of air pollution, damages their property, and reduces property values.

UPDATE: Jason Liegois reported for the Muscatine Journal,

Environmental groups, including Clean Air Muscatine, supported the lawsuit, but business groups said regulation of air pollution should be left to state and federal agencies and not judged on a case-by-case basis.

“We are disappointed in the decision” GPC spokesperson Janet Sichterman, stated in an to the Muscatine Journal. “GPC, and others, strongly contend that regulation of air emissions is not the responsibility of the courts, rather the responsibility of the EPA and the Iowa Department of Natural Resources (IDNR).”

Sichterman also pointed out GPC’s plan to transition from using coal to natural gas boilers, which would nearly eliminate sulfur dioxide and lead, among other emissions. The company is doing this as part of an agreement between the state and GPC, which also saw the company pay a $1.5 million fine to settle a lawsuit against the company filed by Iowa Attorney General Tom Miller. In addition, GPC is investing nearly $100 million in a dryer house project and other environmental control technology. […]

GPC, a subsidiary company of the Muscatine-based Kent Corp., operates a plant that turns corn kernels into products ranging from corn syrup to ethyl alcohol. A regional economic force, the company buys $400 million in corn from farmers annually and is one of the area’s largest employers. […]

Sichterman said the case is in the discovery phase, where it is expected to remain until at least the summer of 2015.