EPA and Department of Justice announced that Ash Grove Cement Company has agreed to pay $2.5 million penalty and invest approximately $30 million in pollution control technology at its 9 Portland cement manufacturing plants to resolve alleged violations of the Clean Air Act. Agreement will reduce more than 17,000 tons of harmful NOx and SO2 pollution each year across plants. In addition, Ash Grove has agreed to spend $750,000 to mitigate effects of past excess emissions from several ...This story is related to the following:Green & CleanSearch for suppliers of: