Storm water discharges are generated by runoff from land and impervious areas such as paved streets, parking lots, and building rooftops during rainfall and snow events. Storm water often contains pollutants in quantities that could adversely affect water quality. Most storm water discharges are considered point sources and require coverage by a National Pollutant Discharge Elimination System (NPDES) permit. The primary method to control storm water discharges is through the use of best management practices (BMPs).
Ohio NPDES Storm Water Program Fact Sheet
For information about storm water management at home, visit the Public Interest Center's website.
Small MS4 General Permit Renewal (Final General Permit – OHQ000004)
Current General Permit - OHQ000004
Issuance Date: April 1, 2021
Effective Date: April 1, 2021
Expiration Date: March 31, 2026
Draft General Permit - OHQ000004
Public Notice Date: July 15, 2020
Comments Due Date: September 8, 2020
The draft renewal permit is available for comment. To provide comments, please e-mail epa.dswcomments@epa.ohio.gov by September 8, 2020, with the draft general permit number OHQ000004 in the subject line.
On August 5, 2020, Ohio EPA held a virtual information session to provide an overview of the Draft Small MS4 General Permit renewal. The following is information from the session: