Water Data Portal

We offer a variety of easy-to-find information to assist the region in understanding and managing natural water resources.




PRECIPITATION in the Great Miami River Watershed over the last 24 hours, 7 Days, or 30 Days measured in inches. View recent or historic totals by the Day, Month, or Year.




STREAM OR RIVER STAGE (also known as river level or gage height) is the height of the water surface, in feet, above some arbitrary point often referred to as the datum. 
Stage is NOT the depth of the water in the channel.

FORECASTED RIVER STAGE to view anticipated river levels as modeled by the Ohio River Forecast Center.




STREAM OR RIVER DISCHARGE is the volume of water flowing past a given point in the stream in a given period of time. Streamflow is reported as cubic feet per second (ft3/s).
Streamflow values are better indicators than gage height of conditions along the whole river.




AIR and RIVER WATER TEMPERATURE are measured with deployed sensors and reported in degrees Fahrenheit.




DEPTH TO GROUNDWATER is the distance from an established measuring point to the water level in a well measured in feet.




Who collects this data? 

Along with our partners‚ the United States Geological Survey, Ohio Department of Natural Resources, and Heidelberg National Center for Water Quality Research, we collect the water data that is used in everything from flood forecasting to infrastructure planning.

Citizen Observers

To track precipitation amounts, Miami Conservancy District maintains a network of 42 stations staffed by citizen observers who record daily precipitation. The observers read the amounts collected at standard National Weather Service (NWS) rain and snow gages and send the readings to MCD via mail or electronic submittal. The data is used to calculate annual precipitation for the watershed by averaging annual precipitation totals measured at each of the stations. The information from these precipitation stations is published in a monthly precipitation report. Twenty-eight of the precipitation stations have more than 75 years of record. The Urbana station has the longest period of record—141 years. Long records are required for resource planning and understanding environmental trends. Air temperature is also recorded at six stations are and published in "Climatological Data, Ohio," prepared by NWS. The five stations are: Bellefontaine, Greenville, Sidney, Springfield Water Treatment Plant, and Eaton.

We also collects data on groundwater quality, groundwater temperature, and surface water quality that is published in reports and case studies.

For more information, contact Mike Ekberg, manager of water resources monitoring and analysis.