The White Clay Creek Watershed Management Plan will foster cooperation between private landowners, business and industry, non-profit organizations, educational and research institutions, recreationists, historians and all governmental units including: the State of Delaware, Commonwealth of Pennsylvania, Delaware River Basin Commission, Chester County, New Castle County, City of Newark, Avondale Borough, East Marlborough Township, Franklin Township, Kennett Township, London Britain Township, Londonderry Township, London Grove Township, New Garden Township, New London Township, Penn Township, West Grove Borough and West Marlborough Township.