Boise — The Idaho Department of Environmental Quality (IDEQ) is studying whether to issue a proposed air quality permit to P4 Production, Soda Springs. The proposed permit will allow the Monsanto subsidiary to install and operate a new coke screening system at its elemental phosphorus production plant two miles north of Soda Springs on Highway 34. Replacement of the coke screens will allow P4 to reduce coke fires in the feedstock to three electric arc furnaces that run continuously at 2,550 to 2,732 degrees Fahrenheit. IDEQ has determined that the project will not cause or significantly contribute to a violation of any ambient air quality standard and will not injure or unreasonably affect human, animal life, or vegetation. Recent public comments are now under review.
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