Northwest Michigan Community Health Agency Mercury Spill Response Presentation by Karla Horne, Environmental Sanitarian Environmental Protection Agency Mercury Techniques and Case Studies by Jeffrey Kimble, On-Scene Coordinator More Information For more about MDCH and EPA responses to mercury spills in Michigan, go to EPA's On-Scene Coordinator website. Do you need more information? Call your local health department or the Michigan Department of Community Health, 1-800-648-6942.