Welcome to the Water Level Management Alliance website. We are a group of 5 Internal Drainage Boards (IDBs) operating in the Anglian Region of the United Kingdom, known as the Water Management Alliance or WMA for short. Our members include:

Broads (2006) IDB

East Suffolk IDB

King’s Lynn IDB

Norfolk Rivers IDB

South Holland IDB

Our members are autonomous and democratically accountable statutory bodies that seek to protect some 548,000 hectares of East Anglia. We have over 900 years of experience protecting and defending our wonderful parts of England, reducing flood risk.

Central Office

Kettlewell House, Austin Fields Industrial Estate, King’s Lynn, Norfolk, PE30 1PH, UK.


Contact details

During office hours
(between 8.30 am and 5.30 pm)
Tel: +44(0)1553 819600
Fax: +44(0)1553 819639
Email: info@wlma.org.uk

Out of hours

Please contact the Duty Officer on +44(0)7881 581521. Otherwise if you know who you need to contact in an emergency, please refer to the Member Board’s ‘Contact us’ webpage on this site for their out of hours contact details.

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