5 things to know about Dayton's giant aquifer

Feb 08, 2018

Dayton and southwest Ohio are situated over more than 1.5 trillion gallons of water known as the Great Miami Buried Valley Aquifer.

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The aquifer stretches from Logan County to Hamilton County, and it loosely follows the Great Miami River and its tributaries like the Mad River and Little Miami River. 

The Great Miami River Buried Aquifer, which sits under more than eight counties in southwest Ohio, holds more than a trillion gallons of valuable water. It serves as the main water sources for 2.5 million people. And it is vigorously tested by several agencies to ensure its quality. By the time it gets to a customer s tap, it s been through multiple lines of testing and oversight and regulation from the Ohio EPA, said Brianna Wooten, communications coordinator for Montgomery County Environmental Services. It s very well-regulated. ROBERT CALZADA / STAFF Photo: Robert Calzada

Formed thousands of years ago by glaciers, the Great Miami Buried Valley Aquifer is “made up of loose, coarse sediments such as sand and gravel,” according to the Miami Conservancy District. This natural type filtration results in very clean water.

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2.5 people use water from the Great Miami Buried Valley Aquifer annually.

Kyle Savoie glide across across Eastwood Lake as it reflects the sunset twilight. Eastwood Lake is part of the Great Miami Valley Buried Aquifer system. TY GREENLEES / STAFF Photo: Ty Greenlees

Dayton has two drinking water plants. One is near Kitty Hawk Golf Course on Chuck Wagner Lane, the other is on Ottawa Street. This supplies water customers with more than 20 billion gallons of water each year.

Aerial view of the Lime treatment tanks at the City of Dayton Miami Water Treatment Plant. Dayton draws water form The Great Miami River Buried Aquifer. TY GREENLEES / STAFFi Photo: Ty Greenlees