Officials question emissions from GPC in Muscatine - KWWL - Eastern Iowa Breaking News, Weather, Closings

Officials question emissions from GPC in Muscatine

MUSCATINE (AP)--Some state environmental groups are questioning the coal-burning practices of a Muscatine corn-processing plant.

An Iowa Department of Natural Resources investigation shows that workers at Grain Processing Corp. acknowledged the switch to the low-sulfur variety of coal from a high-sulfur coal when the wind blows toward an emissions monitor.

Iowa Environmental Protection Commission member Susan Heathcote says the switch makes it difficult for the monitor to get an accurate reading.

Lee Searles of the Iowa Environmental Council is asking what effect does switching coal have on the plant's ability to stay under federal nonattainment levels.

Iowa DNR officials say swapping coal is not illegal, nor does it violate the company's permits.

Company officials say the switch is made at times to maintain good air quality.

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