USGS Ohio Water Science Center

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USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.
USGS: Your Source For Water Science You Can Use

Welcome to the U.S. Geological Survey (USGS) Web page for the water resources of Ohio; this is your direct link to all kinds of water information. Here you'll find information on Ohio's streams, ground water, water quality, and many other topics. more...

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Groundwater: Become Aware Of This Magical Resource.

Groundwater: Become Aware Of This Magical Resource.

3/3/2015 -- In 1861 the Ohio Supreme Court ruled that groundwater was too secret and occult to be adjudicated by law, and water witching was a common method to identify groundwater (USGS Report, 1917). Though not of the occult, groundwater is a hidden resource that in Ohio provides drinking water to about 4.8 million people.  Naturally occurring contaminants in Ohio groundwater can include microorganisms, radon, and arsenic. Contamination can also be caused or made worse by human activities, including releases of gasoline hydrocarbons and solvents, application of fertilizers, and septic-tank leachate. More information on groundwater and Groundwater Awareness Week can be found at the National Ground Water Association,, and the USGS Groundwater Information Pages.

Water Quality In Grand Lake St. Marys.

Water Quality In Grand Lake St. Marys.

2/3/2015 -- Cyanobacterial harmful algal blooms (cyanoHABs) can produce toxins harmful to humans and deadly to fish and pets. CyanoHABs have become common in Ohio’s Grand Lake St. Marys, the largest manmade lake in Ohio and also a state park. A recent USGS report describes findings from 11 sets of water-quality samples at six lake sites during 2011-2012. Samples were analyzed for concentrations of a suite of chemical constituents, chlorophyll, and microcystin and to determine plankton community structure and abundance. Molecular methods showed Planktothrix to be the dominant cyanobacterial genus. Molecular method results were also correlated to other water-quality constituents. Other cyanoHAB research underway at the USGS Ohio Water Science Center includes relating toxins in the sediment with bloom occurrence and predicting cyanoHABs at inland lakes and along Lake Erie Beaches. More information on cyanobacterial blooms in Ohio as well as USGS cyanotoxin research can be found on the web.

National Water Use At Lowest Level Since Before 1970.

National Water Use At Lowest Level Since Before 1970.

11/20/2014 -- Water use across the country reached its lowest recorded level in nearly 45 years. According to the newly released report Estimated Use of Water in the United States in 2010 and as described on the USGS Water Use webpage, about 355 billion gallons of water per day (Bgal/d) were withdrawn for use in the United States during 2010. Ohio ranked 12th in State total withdrawals, with 68 percent of withdrawals in Ohio used for thermoelectric power. The USGS compiles and disseminates the Nation's water-use data, including a report every 5 years. (news release)

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