The United States and Canada adopted phosphorus load reduction targets to combat Lake Erie algal blooms.
Pennsylvania outlines actions to reduce phosphorus in Lake Erie.
Canada and Ontario outline actions to reduce phosphorus loading to Lake Erie.
Ohio outlines actions to reduce phosphorus in Lake Erie.
The Great Lakes Water Quality Agreement (GLWQA), signed by Canada and the United States, is a commitment to protect the waters of the Great Lakes. It was most recently updated in 2012. Annex 4 was formed to manage phosphorus concentrations and loadings (and other nutrients if warranted) in the Great Lakes.
The mission of Sustain Our Great Lakes (SOGL) is to sustain, restore and protect fish, wildlife, and habitat in the Great Lakes basin by leveraging funding, building conservation capacity, and focusing partners and resources toward key ecological issues. Administered by the National Fish and Wildlife Foundation, the program receives funding and other support from ArcelorMittal, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, U.S.D.A. Forest Service, National Oceanic and Atmospheric Administration, and U.S.D.A. Natural Resources Conservation Service.
The Streams and Waterbodies of the United States data layer shows the location of water features throughout the United States, Puerto Rico, and U.S. Virgin Islands
Ohio EPA collects and reports information on groundwater quality, and provides data from groundwater monitoring.