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Member Boards

Associate Boards

WMA Associated Board

Waldersey IDB

The Waldersey Internal Drainage Board (IDB) joined the Water Management Alliance as an ‘Associated Board’ on 1st April 2026.

The board remains an independent organisation with its own governance and decision-making powers, but chooses to receive administrative and technical services from the WMA under an agreed arrangement. The board is therefore “Associated” with the WMA for the delivery of services, rather than being a full “Member Board”.

The Board’s administrative and technical support staff operate from Pierpoint House, King’s Lynn, Norfolk.

Byelaws

Local regulations made under the Land Drainage Act 1991 to help manage watercourses and drainage systems within defined districts.

Contact Us

Get in touch with our Head Office

Development & Consent

How we regulate development and manage drainage.

Elections

About the Board’s elections and election process.

Emergencies

Out of Hours Emergency Response

FAQs

Frequently Asked Questions

Finances

The Boards financial statements, which are published annually to ensure transparency, accountability and public trust.

Governance

The Boards role, composition and accountability.

Maps

Board maps showing catchment boundaries, drainage districts and key water management features.

Meetings

Board Meeting notices, agendas and minutes.

Members

Elected and appointed Board Members.

Operations

Planned maintenance and capital work, inspections, recharge work and emergencies.

Organisation

About the Board and the service it delivers.

Our Area

The Board’s Area, it’s Catchments & Watercourses.

Pay your rates

Log in to DRS (Drainage Rating System) to pay your annual rate demand.

Policies

The Board’s Policy documents.

Public Notices

Official notices that the Board is legally required to publish.

Rates & Levies

Drainage Rates & Special Levies explained.

Work Programme

The Board’s Work Programmes identify the maintenance and capital work the Board plans to deliver.