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LIFTED: Water Advisory for the Great Miami River

UPDATE 6/23/20: The water advisory for Great Miami River south of Oxford State Road was lifted Monday afternoon, after public health officials were notified the City of Middletown Sewage Treatment Plant had resumed normal operations. 

Water samples taken over the weekend have been consistently showing that the plant is no longer discharging high levels of E. Coli into the Great Miami River. A precautionary water advisory as a result of under-treated sewage was issued by the Butler County General Health District (BCGHD) and City of Hamilton Health Department (CHHD) BCGHD and CHHD in consultation with the Ohio Environmental Protection Agency (EPA) have determined that normal river recreation activities may resume. 

We encourage river users to follow the typical precautions including: Not drinking river water; Washing hands thoroughly; Showering after river use.

Original Post:

The Butler County General Health District (BCGHD) has been notified of a 

release of under-treated sewage by the Middletown Waste Water Treatment Plant south of Oxford State Road in Lemon Township.

As a precautionary measure, the BCGHD and the City of Hamilton Health Department (CHHD) are advising citizens not to enter or fish in the Great Miami River downstream of Oxford State Road. An additional statement will be released when the advisory is lifted. 

There are increased health risks associated with coming into contact with wastewater. Parasites, viruses and bacteria can cause a range of conditions including diarrhea, dysentery, gastroenteritis and hepatitis A.

To prevent the spread of disease the BCGHD and CHHD are advising the public not to enter the water until normal operations at the wastewater treatment plant has been corrected. Swallowing a small amount of contaminated wastewater or having contaminated wastewater come in contact with an open wound may make you sick.

The symptoms can range from mild to severe. If you have diarrhea, the most important thing you can do is to drink plenty of fluids to prevent dehydration. This is especially important for young children, pregnant women, and persons with weakened immune systems (such as those living with HIV/AIDS, those who have received an organ transplant, or those receiving certain types of chemotherapy). 

Seek medical care immediately if you experience any of the following symptoms, or if you have any concerns at all:

  • Your diarrhea is bloody or diarrhea isn’t improving after 3 days
  • Your diarrhea is accompanied by fever or chills
  • You are dehydrated (signs of dehydration include: dry or “cottony” mouth, cracked lips, dry flushed skin, headache, irritability, not urinating at least four times a day, no tears when crying, not sweating, or confusion)

A health care provider may prescribe medicine to help replace the fluids your body has lost because of the diarrhea. In some cases, over-the-counter medications can slow the diarrhea. BCGHD and CHHD will notify the public with additional information as needed, via our websites at or