"The Pennsylvania District of the USGS collects basic hydrologic data and makes interpretive investigations of Pennsylvania's water resources. This web site is intended to provide the general public with information on the USGS and with timely access to the data we collect and the information we provide."

"As always, we strive to present the public with accurate and timely hydrologic information for our users. We are located in State College, PA, on the 4th and 5th floors of the Rider II building, which we share with the State College National Weather Service Forecast Office (CTP), and part of the Penn State Meteorology Department."

"Roadmap to information and services for protecting and restoring water resources." This EPA site covers topics from "What is a watershed?" through starting a watershed team, sources for technical and hands-on assistance, to basic laws relating to water and watersheds.

"River Network's mission is to help people organize to protect and restore rivers and watersheds." The site has information on Watershed Assistance Grants (WAG)

"The Chesapeake Bay Program is the unique regional partnership that's been directing and conducting the restoration of the Chesapeake Bay since the signing of the historic 1983 Chesapeake Bay Agreement. The Chesapeake Bay Program partners include the states of Maryland, Pennsylvania and Virginia; the District of Columbia; the Chesapeake Bay Commission, a tri-state legislative body; the Environmental Protection Agency, representing the federal government; and participating advisory groups."