Dunkard Creek Watershed Association
Izaak Walton League of America
Mountain Watershed Association
Washington County Conservation District
ALLARM's Marcellus Shale Resources Page
Pennsylvania Fish and Boat Commission
Pennsylvania Department of Environmental Protection
West Virginia Department of Environmental Protection
West Virginia Division of Natural Resources
West Virginia Water Research Institute
United States Army Corps of Engineers
United States Environmental Protection Agency - Region 3
United States Geological Survey
Dunkard Creek Watershed Association