29 April 2015. A federal agency has issued several citations against a Mason City cement company. The U.S. Department of Labor’s Mine Safety and Health Administration on Monday announced they had issued 24 citations against Lehigh Cement Company for violations of the Mine Act.
RADIO IOWA
http://www.radioiowa.com/2015/04/28/mason-city-cement-plant-cited
At industryabout.com: Lehigh - Mason City Cement Plant
