General Permit Authorization for Small Municipal Separate Storm Sewer Systems (MS4) to Discharge Storm Water under the National Pollutant Discharge Elimination System (NPDES).
The draft permit authorizes discharges of storm water from a select group of MS4s that serve populations less than 100,000 in urbanized areas, and those that have or may have the potential to negatively impact surface water quality as a result of their discharges. An MS4 individual permitting program exists for those serving populations of more than 100,000. Ohio EPA’s previous NPDES Small MS4 general permit (OHQ000004) was issued on April 1, 2021 and expired on March 31, 2026.
This comment period addresses the fifth generation NPDES Small MS4 general permit (OHQ000005). This permit covers the entire State of Ohio and will expire five years after the effective date. A public hearing on this draft permit will host an in-person and virtual public hearing on July 28, 2026 at 1:30pm to collect public comments. The in-person hearing will be located at Ohio EPA, Suite 700, 50 W. Town Street, Columbus, Ohio 43215. During the hearing, the public may submit written comments on the record about the proposed rules if participating virtually and verbally if participating in person.
People who want to participate virtually must register in advance at: https://ohioepa.commentinput.com?id=f8Cu4Nx27E. People who wish to give testimony at the hearing should notify the Ohio EPA Communication and Outreach, P.O. Box 1049, Columbus, Ohio 43216-1049, (614) 644-2160 or by emailing mary.mccarron@epa.ohio.gov. Prior registration will ensure that registrants are heard ahead of those individuals who register at the hearing. Oral testimony may be limited to five minutes, depending on the number of persons testifying. All interested persons are entitled to attend or be represented and to present oral and/or written comments. Comments will be accepted until August 4, 2026.
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General Permit Authorization for Small Municipal Separate Storm Sewer Systems (MS4) to Discharge Storm Water under the National Pollutant Discharge Elimination System (NPDES).
The draft permit authorizes discharges of storm water from a select group of MS4s that serve populations less than 100,000 in urbanized areas, and those that have or may have the potential to negatively impact surface water quality as a result of their discharges. An MS4 individual permitting program exists for those serving populations of more than 100,000. Ohio EPA’s previous NPDES Small MS4 general permit (OHQ000004) was issued on April 1, 2021 and expired on March 31, 2026.
This comment period addresses the fifth generation NPDES Small MS4 general permit (OHQ000005). This permit covers the entire State of Ohio and will expire five years after the effective date. A public hearing on this draft permit will host an in-person and virtual public hearing on July 28, 2026 at 1:30pm to collect public comments. The in-person hearing will be located at Ohio EPA, Suite 700, 50 W. Town Street, Columbus, Ohio 43215. During the hearing, the public may submit written comments on the record about the proposed rules if participating virtually and verbally if participating in person.
People who want to participate virtually must register in advance at: https://ohioepa.commentinput.com?id=f8Cu4Nx27E. People who wish to give testimony at the hearing should notify the Ohio EPA Communication and Outreach, P.O. Box 1049, Columbus, Ohio 43216-1049, (614) 644-2160 or by emailing mary.mccarron@epa.ohio.gov. Prior registration will ensure that registrants are heard ahead of those individuals who register at the hearing. Oral testimony may be limited to five minutes, depending on the number of persons testifying. All interested persons are entitled to attend or be represented and to present oral and/or written comments. Comments will be accepted until August 4, 2026.
Contact Information
*Indicates Required Fields