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.

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

Credible Data - References

Credible Data is a program that classifies surface water monitoring performed by watershed groups, state agencies, schools, local volunteers and other organizations. Ohio EPA uses the data submitted under the program in ways prescribed by State law.

Data from Other State Agencies

Through Amended House Bill 43 the Ohio General Assembly instructed all State agencies to submit any data in their possession on surface water quality to Ohio EPA. In the administrative rules for the program Ohio EPA has indicated that data is to be submitted on an annual basis, or more frequently, beginning March 31, 2007. Ohio EPA will provide additional instructions on this at a later date.

The Credible Data Online Application (CDOA) is now accessible online through Ohio EPA's eBusiness Center. Data must be submitted through this system to be officially accepted as credible data, with the exception of Level 3 biological data. All Level 3 fish and macroinvertebrate data must be submitted using paper data sheets in accordance with the data reporting requirements in the Credible Data rules (OAC 3745-4). Additional information about submitting data through the CDOA, including the CDOA User’s Guide, is available on the Submission of Data page.

Do other State Agencies have to be Qualified Data Collectors (QDCs) or Qualified Data Collection Organizations (QDCOs) and submit study plans?

No. The law exempts Ohio EPA, it contractors, other state environmental agencies (but not their contractors), U.S. EPA and its contractors from these requirements. State environmental agency is defined in rule 3745-4-02 as:

  • The Ohio Environmental Protection Agency;
  • The Ohio Department of Natural Resources;
  • The Bureau of Environmental Health in the Division of Prevention in the Ohio Department of Health;
  • The livestock environmental permitting program in the Ohio Department of Agriculture;
  • The Bureau of Underground Storage Tank Regulations in the State Fire Marshal division of the Ohio Department of Commerce; and
  • The Office of Environmental Services in the Ohio Department of Transportation.