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2025 Current Data Charts for main stem sampling sites on the Great Miami, Whitewater and Ohio Rivers, as well as Dry Fork Creek  

This page offers a rolling analysis of the 2025 monitoring season data. It is a tool to help us understand the relationships of recent weather events and their impact on water quality. Here we chart the nitrate, phosphorus, E.coli, and turbidity levels of our primary rivers along with precipitation and streamflow records for the week leading up to monitoring day.

Learn more about pulse flows, nutrient loading and eutrophication and see how they impact specific sampling sites taken from areas used for recreation, including Heritage Park on the Great Miami, Green Acres Kayak on the Whitewater River, at Lawrenceburg on the Ohio River, and Dry Fork Creek in Miami Whitewater Forest.

*Note that left and right columns scroll independently so parameter and precipitation details are available simultaneously for all months.*