English Nature
English Nature is the statutory service responsible for looking after England's variety of wild plants and animals, its biodiversity and natural features. Site includes details of the organisations work and publications.
http://www.english-nature.org.uk

Environment Agency of England and Wales
Regulates air and water pollution problems.
http://www.environment-agency.gov.uk

Internal Drainage Board - Bedford Group
Provides local flood defence in Bedfordshire and Buckinghamshire. List of projects and personnel.
http://www.idbs.org.uk