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. To report a spill or environmental emergency, contact the spill hotline (800) 282-9378 or (614) 224-0946. This number should only be used for emergencies. For all other calls, 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.

MEDIA CONTACT: Anthony Chenault
CITIZEN CONTACT: Kristopher Weiss

Study of Rocky River Tributaries Released

Public Comment Period Open through August 21, 2020  

Ohio EPA today released a study examining water and sediment chemistry, habitat, fish, and other aquatic life from 28 named and unnamed rivers and streams that flow into the Rocky River in northeast Ohio. These small streams drain approximately 294 square miles in portions of Cuyahoga, Lorain, Medina, and Summit counties. 

The study shows that most small Rocky River tributaries have healthy fish and macroinvertebrate populations. Overall, water quality in the smaller streams has improved significantly compared to results from previous studies.

Of the 119.6 stream miles assessed, 79 percent (94 of 119) of the stream locations sampled were found to fully support existing and recommended aquatic life uses. 

Lower concentrations of mercury in fish caught throughout the study area have led to a fish consumption advisory recommendation of eating no more than one meal per week for most species and most fishable waters within the Rocky River basin. The exceptions were limited to smallmouth bass taken from the West Branch Rocky River and rockbass taken from the East and West Branches. The smallmouth bass showed elevated mercury concentrations in the past, and the existing advisory of one meal per month is recommended. In contrast, the rockbass had falling levels of mercury and now receives a recommendation of one meal per week (the general statewide advisory), replacing the previous, more stringent advisory of one meal per month.

The study also found many streams not meeting the human recreation-based water quality standard for E. coli bacteria. Bacterial contamination was present during both wet and dry weather events, indicating active nonpoint sources and permitted point sources. These sources include combined sewer overflows, sanitary sewer overflows, urban storm water, treated wastewater discharges, and failing home sewage treatment systems.

The study also found 10 streams or segments of the 28 water bodies evaluated are not meeting attainment for aquatic life uses. The leading cause and source of this impairment were  modification to the waterway and storm water from urban and suburban landscapes. Habitat alterations were the next leading cause of impairment.

The biological and water quality study is designed to assess the effects of various land uses, evaluate the influences of agricultural, industrial and commercial discharges and spills, and assess the performance of permitted wastewater treatment plants. The study also evaluates the quality of fish and macroinvertebrate communities in the streams, compares results with historic conditions and determines if streams are meeting designated aquatic life and human recreation uses.

Further details about the study, data and maps are contained in the report. The study is the second step in Ohio EPA’s five-step Total Maximum Daily Load process. Subscribe here for updates on this and other Ohio EPA Total Maximum Daily Load projects. 

Findings in the report, along with public comments received, will be developed into a Total Maximum Daily Load report, which is a plan to improve water quality in the watershed through potential permit limits on regulated dischargers and/or nonpoint source runoff reduction projects, whichever may be necessary to address water quality impairment at any given location. Ohio EPA works with local communities and watershed groups to implement projects and strategies to achieve water quality goals. 

To comment on the study, email or write to: TMDL Program, Ohio EPA Division of Surface Water, P.O. Box 1049, Columbus, OH 43216-1049. Comments are due by 5 p.m. August 21, 2020.


The Ohio Environmental Protection Agency was created in 1972 to consolidate efforts to protect and improve air quality, water quality and waste management in Ohio. Since then, air pollutants dropped by as much as 90 percent; large rivers meeting standards improved from 21 percent to 89 percent; and hundreds of polluting, open dumps were replaced with engineered landfills and an increased emphasis on waste reduction and recycling.

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