Who is diddidion milling? Didion Milling is a family owned agricultural processing business located in the heartland of Wisconsin.What happened at the didion milling facility in cambria? - Today the U.S. Chemical Safety and Hazard Investigation Board (CSB) released a new contractor report stemming from the 2017 fatal dust explosion at the Didion Milling facility in Cambria, Wisconsin.Does didion milling agree with the report of employee abuse? NBC15 spoke with Riley Didion, president of Didion Milling, Inc. and one thing he made clear was, the company does not agree with the report.What is the osha fine for didion milling cambria? OSHA has proposed $1,837,861 in fines against Didion Milling, Inc. OSHA said they cited the Cambria facility with 14 willful, including eight willful per-instance egregious, and five serious citations, most involving fire and explosion hazards.