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

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

 

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:

 

On September 11, 2014, Ohio EPA finalized the renewal of the small MS4 general permit, see below for more information.

Issue Date: September 11, 2014
Effective Date: September 11, 2014
Expiration Date: September 10, 2019

The NPDES Small MS4 general permit renewal will afford coverage to regulated Small MS4s, be applicable statewide, and have a duration of 5 years.  This is the third generation of this general permit. The renewal requires a regulated Small MS4 operator’s construction and post-construction requirements, at a minimum, be equivalent with the technical requirements set forth in the current, at time of issuance of this permit, Ohio EPA NPDES General Storm Water Permit for Construction Activities (CGP) applicable for the MS4 operator’s area. This includes the following Ohio EPA NPDES General Storm Water Permits for Construction Activities:

This approach will deter conflicting requirements and allow for a lessened presence of Ohio EPA in regards to the CGP requirements within MS4 jurisdictions. Under this approach, regulated MS4s located within the Big Darby Creek Watershed and portions of the Olentangy River Watershed will need to have their local regulations be, at a minimum, equivalent with the technical requirements set forth in these two Ohio EPA alternative NPDES CGPs. All other regulated MS4s would be required to have their local regulations be, at a minimum, equivalent with the technical requirements set forth in the Ohio EPA statewide NPDES CGP. 

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