Pennsylvania is a member of eight interstate organizations and shares basins with fifteen other states. The eight organizations are:
Susquehanna River Basin Commission(opens in a new tab)
Delaware River Basin Commission(opens in a new tab)
Partnership for the Delaware Estuary(opens in a new tab)
Great Lakes Commission(opens in a new tab)
Interstate Commission on the Potomac River Basin(opens in a new tab)
Ohio River Valley Water Sanitation Commission(opens in a new tab)