City of Columbus

Integrated Plan and 2015 WWMP Update Report Approval

Ohio EPA has issued final approval of the City of Columbus’ Integrated Plan and 2015 Wet Weather Management Plan (WWMP) Update Report. The Integrated Plan, which features both gray and green infrastructure projects, will dramatically decrease the occurrence of sewer overflows and basement backups that occur in the Columbus service area after rains and snowmelt. The total cost for the projects in the wet weather management plan is $3.6 billion (2015 dollars).

2015 Modification to Wet Weather Management Plan

Wet Weather Management Plan Approval. January 26, 2009

Response to Comments on Draft Plan Approval. January 2009

To obtain a digital copy of the Integrated Plan and 2015 WWMP Update Report, contact Ashley Ward at or (614) 644-4852.

Satellite Communities Administrative Orders

The City of Columbus maintains a website regarding its Project Clean Rivers and Blueprint Columbus programs. The website contains additional information regarding the City's Integrated Plan and 2015 WWMP Update Report.


 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