Where Southern Water operates

Water supply and wastewater treatment areas

Wastewater treatment only

Water supply only

Canterbury

Kent

Hampshire

East

Sussex

West

Sussex

Southampton

Brighton

Isle of Wight

Water supply and wastewater treatment areas

Wastewater treatment only

Chatham

Ramsgate

Water supply only

Canterbury

Basingstoke

Maidstone

Kent

Tunbridge

Wells

Dover

Ashford

Winchester

Horsham

Hampshire

East Sussex

West Sussex

Southampton

Chichester

Hastings

Brighton

Bognor

Regis

Eastbourne

Newport

Isle of Wight