Ohio EPA Holding Hearing about Renewing General Permit for Small Municipal Separate Storm Sewer Systems 

Online Public Meeting Set Sept. 1, 2020

Ohio EPA will accept public comments at a virtual public hearing about renewing the small municipal separate storm sewer system (MS4) general permit. Small MS4s are storm sewer systems serving fewer than 100,000 people in urbanized areas.

During virtual hearing, which will begin at 3 p.m. on Tuesday, Sept. 1, 2020, the public can submit written comments on the record about the draft permit. Citizens who want to participate must preregister in advance of the meeting.

Municipal storm sewer permits are required because storm sewers carry pollutants from parking lots, streets, sidewalks, lawns, and rooftops into local streams. Pollutants typically include vehicle fluids, oils, road salt, pesticides, and other materials that run into storm sewers with rainwater and snow melt.

This is the fourth generation of the general permit. A fact sheet and other information about the draft small MS4 general permit renewal are available online. Noteworthy changes to the proposed permit are described on pages 3-5 of the fact sheet. The permits are effective for five years and require permitted municipalities to implement a storm water management plan, including best management practices.

In addition to the online public hearing, written comments may be submitted by email to epa.dswcomments@epa.ohio.gov by Sept. 8, 2020. All comments should include the permit number “OHQ000004” in the email subject line. 


The Ohio Environmental Protection Agency was created in 1972 to consolidate efforts to protect and improve air quality, water quality and waste management in Ohio. Since then, air pollutants dropped by as much as 90 percent; large rivers meeting standards improved from 21 percent to 89 percent; and hundreds of polluting, open dumps were replaced with engineered landfills and an increased emphasis on waste reduction and recycling.

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