Water Quality Monitoring Program

 

 

Water quality is at the heart of what MSD does every day.

 

 

WATER QUALITY STORY MAP

Visit our interactive Water Quality Story Map  to learn more about MSD's water quality monitoring program in a visual format.

 

 

 

MSD WATER QUALITY STUDIES

MSD monitors water quality and aquatic habit in the Mill Creek, Little Miami River, and Muddy Creek & other tributaries. MSD partners with the Midwest Biodiversity Institute (MBI) to perform comprehensive biological, chemical, and physical sampling and analysis in sampling rounds every four or five years. The results are then compared to previous studies and Ohio Water Quality Standards

 

The most recent (third round) of water quality sampling was conducted in 2021-2023.

 

 

The second round of sampling was conducted in 2016-2019:

 

The benchmarking (baseline) round of sampling was conducted in 2011-2014:

 

 

For more information about our local streams, please see our stream-specific webpages below.

 

 

HABITAT MITIGATION

The health of local streams isn’t just dependent on what's in the water; it's also important for fish and other aquatic organisms to have a natural habitat.

 

Toward that goal, MSD and the MILL CREEK ALLIANCE are working to eliminate low-head dams on the Mill Creek mainstem. LEARN MORE

 

Bonecrusher dam on the Mill Creek
This low-head dam on the Mill Creek, nicknamed the "Bonecrusher, was mitigated in 2024.

 

 

Photo of a longnose gar in the Mill Creek
Longnose gar in the Mill Creek

 

 

 

 

 

Our Local Streams

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Mill Creek

The Mill Creek, once named the most endangered urban stream in America, is on its way toward recovery.

 

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Little Miami River

The lower Little Miami, a State and National Wild and Scenic River, is sustaining water quality in the mainstem but is widely impaired by E. coli.

 

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Muddy Creek and Other West-Side Tributaries

A majority of Muddy Creek and other tributaries of the Ohio River are not in attainment with their aquatic life uses and there is widespread impairment of E. coli.

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