NPDES General Permits

 As a precautionary response to COVID-19, Ohio EPA is currently operating with most staff working remotely. If you are working with our staff on a current project and you know the name of the employee you are working with, email them at or call them directly. The Agency website has contact information for every district, division, and office. In order to reach us, please contact Ohio EPA’s main phone line at (614) 644-3020 or the main line for the division or office you are trying to reach.

After March 23, our district offices and Central Office will be temporarily closed and will have increasingly limited ability to receive deliveries, plans, etc. All entities are encouraged to submit plans, permit applications, etc., electronically where there are existing avenues to do so, such as the eBusiness Center (eBiz). Please refer to the list of available services on the main eBiz webpage. We encourage you to make use of all that apply, even if you have not used eBiz in the past. Plans under 25 MB can be emailed. For large plans over 25 MB, entities should work with the reviewer/division to upload via LiquidFiles. Directions for submitting docs via LiquidFiles is available on YouTube. We apologize for the inconvenience and thank you in advance for your understanding. If you wish to send hard copies of documents to any of Ohio EPA’s district offices, the best method to ensure we receive these documents is to send them via U.S. Mail. Since all offices are closed, deliveries outside of U.S. Mail (FedEx, UPS) will likely be returned because the offices are closed and deliveries cannot be made.

To report a spill or environmental emergency, contact the spill hotline (800) 282-9378 or (614) 224-0946

Whenever a municipality, industry, or other entity wishes to discharge water to a surface water of the State, they must first obtain a permit from the Ohio EPA Division of Surface Water (DSW). This permit is called a National Pollutant Discharge Elimination System (NPDES) permit. NPDES permits regulate wastewater discharges by limiting the quantities of pollutants to be discharged and imposing monitoring requirements and other conditions. The limits and/or requirements in the permit help ensure compliance with Ohio's Water Quality Standards and Federal Regulations, all of which were written to protect public health and the aquatic environment.

In August of 1992, the U.S. EPA delegated to Ohio EPA the authority to issue general NPDES permits. Ohio law regarding general permits (Ohio Revised Code Section 6111.035) was originally written to apply to coal mining and reclamation activities. It was revised to expand the scope of general permits to storm water discharges and then, in 1993, to include wastewater discharges with a de minimis impact on the receiving stream. Rules addressing the general NPDES permit program are in Ohio Administrative Code Chapter 3745-38. DSW is in the process of developing and issuing general permits for a variety of discharges in order to increase efficiency and to help make it easier for various dischargers to obtain an NPDES permit.

Types of Permits

There are two types of NPDES permits; individual and general. An individual NPDES permit is unique to each facility. The limitations and requirements in an individual permit are based on the facility's operations, type and amount of discharge, and receiving stream, among other factors. Because some of the individual permits contain very similar or, in many cases, identical effluent limitations and requirements, their contents have been compiled into one permit that can be applied to certain categories of discharges. This is a general permit.

A general permit is one permit that covers facilities that have similar operations and type of discharge. A general NPDES permit is a potential alternative to an individual NPDES permit and affords coverage to new and existing dischargers that meet the eligibility criteria given in the general permit. General permits are used to cover discharges that will have a minimal affect on the environment.

Advantages of a General Permit

There are several advantages to obtaining coverage under a general NPDES permit instead of an individual NPDES permit, such as:simplified one-page application form, the one-page application form doesn't require the inclusion of effluent data, Ohio EPA processing time is reduced, allowing quicker review time, permit consistency with other similar facilities, permit requirements are available prior to applying, and the annual discharge fee may not apply.

  • The draft renewal of the​ General Permit for Small Sanitary Discharges is available for review and comment. The comment deadline is July 10, 2020. Click here for more information.
  • The draft renewal of the​ General Permit for Small Sanitary Discharges That Cannot Meet BADCT is available for review and comment. The comment deadline is July 10, 2020. Click here for more information.
  • The draft renewal of the General Permit for Small MS4s is available for review and comment.  The comment deadline is September 8, 2020.  Click here for more information.

General NPDES permits are usually issued for up to five years. Upon expiration, the permit is revised if necessary and renewed. When a permit is issued, a discharger may review the permit and decide whether or not to apply for coverage.

Before the discharger decides to apply for coverage under the general permit, their discharge must be able to meet all of the requirements and effluent limitations in the general permit.

To apply for general permit coverage, the discharger submits a Notice of Intent (NOI) application form. Ohio EPA will review the NOI and send a letter informing the discharger of the approval or denial of their general permit coverage.

If the discharger decides not to apply for general permit coverage, they must apply for an individual permit. Ohio EPA is not required to approve all general permit applicants to be covered by the general permit, but may require the discharger to apply for an individual permit if environmental concerns exist that are not addressed by the general permit. It is preferred that each facility be covered by only one NPDES permit (i.e., the individual permit).

NOI (Notice of Intent) and NOT (Notice of Termination) application forms and instructions are available in electronic format, information is below.

STREAMS application submittal system!

As of 2/1/17, application forms are now only accessible electronically via the Ohio EPA eBusiness center.

PLEASE NOTE : Consultants CANNOT PIN (i.e., electronically sign) applications on behalf of their clients. Consultants can COMPLETE and SAVE an application then DELEGATE it to their client to PIN and submit. See the one-page walkthrough guide.

Access the General Permit NOI, NOT, NOE, Co-Permittee NOI/NOT, and Individual Lot NOI/NOT forms through your Ohio EPA eBusiness Center account and submit electronically. The NPDES Permit Transfer form is located below. Visit DSW's Electronic Business Services website for more information, guidance, and reporting questions.

Storm water general permits: see the Storm Water Program Contacts page. 

Other general permits: contact at (614) 644-4852.