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 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 firstname.lastname@epa.ohio.gov 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

OAC Chapter 3745-5 Water Quality Trading

The following is a complete list of the rules in Chapter 3745-5 of the Ohio Administrative Code.  More information about Ohio's water quality trading program is available here.

Download the entire Chapter 3745-5 here, or download individual rules below.

  • Table of Contents

  • 3745-5-01 Water quality Trading: definitions.

  • 3745-5-02 Purpose and applicability.

  • 3745-5-03 Prohibitions and restrictions.

  • 3745-5-04 General program requirements.

  • 3745-5-05 General requirements for a water quality trading management plan application.

  • 3745-5-06 Requirements for a water quality trading management plan application.

  • 3745-5-07 Requirements for water quality credits.

  • 3745-5-08 Water quality credits and pollutant loading calculations.

  • 3745-5-09 Determining water quality baselines.

  • 3745-5-10 Trading ratios.

  • 3745-5-11 Incorporating trades into individual NPDES permits and general permits.

  • 3745-5-12 Record keeping, reporting requirements, compliance, enforcement, and oversight.

  • 3745-5-13 Public participation requirements.

  • 3745-5-14 Ambient water quality monitoring requirements.