Pennsylvania Watersheds & Water Resources
- Water Resource Reports from the Pennsylvania Geological SurveyTechnical reports on the groundwater resources of areas, commonly defined on a countywide basis. Most of these reports include a book and a large-scale, full-color geologic map
- USGS Water Resources of PennsylvaniaU.S. Geological Survey data on water resources and data for PA, including stream flow and water quality.
- State Water Plan and Water AtlasA gateway to all aspects of water resources in the state.
- Historic Floods in the Mid-Atlantic RegionSite hosted by the National Weather Service's Mid-Atlantic River Forecast Center.
- Pennsylvania county comprehensive plansCounty comprehensive plans have a section on water resources.
- RipariaA research center within Penn State focused on the study of wetlands, particularly in Pennsylvania. Contains links to relevant articles and other resources produced by the center.
Pennsylvania Watershed Resources
Water and Watershed Books
- Springs of Pennsylvania byPublication Date: 1973Contains water hardness data for various springs throughout Pennsylvania. See table 3 near the back of the book.
- The State Water PlanThis 1983 edition of the State Water Plan contains regional geologic maps and other information, organized by watershed region.
- Hydrology of area 5, Eastern Coal Province, Pennsylvania, Maryland, and West VirginiaThis report, aimed at the mining industry, concerns existing hydrologic conditions in the area and identifies additional sources of hydrologic information.
Groundwater data
Ground-water quality and data on wells and springs in Pennsylvania
This series presents ground-water quality and physical data on about 1,250 wells and springs.