See the latest EHS federal and state regulatory updates due to COVID-19

Additional references and clarifications have been added to several modeling guidance documents to better outline distinctions between modeling recommendations and modeling requirements. These revisions do not include changes to the modeling methodologies. Updated guidance document items include:

  1. DNR Suggested Methodology for Modeling Restricted Hours of Operation
  2. Concrete Batch Plants
  3. Dump Pits
  4. Flare Guidance
  5. Grain Dryers
  6. Haul Roads
  7. Rain Caps and Horizontal Stacks
  8. Storage Piles
  9. Storage Tanks
  10. Truck or Rail Loadout

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