McHenry County committee hears progress on stormwater detention revisions and MS4 permit changes

McHenry County Stormwater Committee members heard updates on proposed stormwater detention code amendments, a new watershed mapping project and evolving requirements in the state MS4 permit at a committee meeting. A county staff member said the items are moving toward more detailed review in January and that staff will return with comparative examples for subdivision development.

The discussion focused first on proposed revisions to the county's stormwater detention regulations. A county staff member said the technical advisory committee requested that staff use a subdivision development as an example to compare how the existing rules would affect detention versus how the proposed amendments would. "The TAC has requested that the staff formally use a subdivision development as an example to show a comparison between how the old regulations would affect the…