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You can explore testing results for drinking water systems near your home, around the state and throughout the country in an interactive map. Explore more data reports at Data Central .
The Ohio water resource region is one of 21 major geographic areas, or regions, in the first level of classification used by the United States Geological Survey to divide and sub-divide the United States into successively smaller hydrologic units. These geographic areas contain either the drainage area of a major river, or the combined drainage ...
In recent years, most states have used CWA section 401 water quality certification programs in addition to or in lieu of specific regulatory statutes. Section 401 requires that before a federal permit or license is issued, states must certify that the project complies with water quality standards.
Map of Ohio's Lake Erie watersheds; Map of Ohio's Principal Streams and Drainage Areas, including a small but important extension of waterway mapping across Ohio's Lake Erie Basin borders into the states of Indiana, Michigan, and Pennsylvania; Chagrin River Watershed Partners; Report on Toussaint River and Rusha Creek watersheds includes ...
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A water researcher tests a sample of water for PFAs, Tuesday, Feb. 14, 2023, at the U.S. Environmental Protection Agency Center for Environmental Solutions and Emergency Response in Cincinnati.
Topsoil runoff from farm, central Iowa (2011). Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and manufacturing industries—although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1]
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