Water Quality Links
State Programs: http://www.dep.state.pa.us/
Pennsylvania Department of Environmental Protection

http://www.srbc.net/index.htm
Susquehanna River Basin Commission
Federal Programs: http://www.epa.gov/OW/
U.S. EPA Office of Water

http://chesapeake.usgs.gov/
U.S. Geological Survey - Chesapeake Bay Region