Small Municipal Separate Storm Sewer Systems (MS4s) - General Permit

Final Small Municipal Separate Storm Sewer Systems (MS4s) Permit Renewal

Current General Permit - OHQ000004

Issuance Date: April 1, 2021
Effective Date: April 1, 2021
Expiration Date: March 31, 2026


For additional information and permit compliance materials, please see our MS4 Program tab.


For additional information contact:

Anthony Robinson
DSW Storm Water Section
(614) 728-3392