2. Mimmshall Brook "Zero Metaldehyde" project

Aim: Improve water quality

Water body: Mimmshall Brook
Project description

Working with farmers in the Mimmshall Brook to reduce metaldehyde (pesticide in slug pellets) pollution impacting the river and drinking water abstraction

 A risk mapping methodology has been used to identify high risk fields in this catchment based on soil type, proximity to a watercourse and topography. Farmers with fields defined as high risk have been asked to voluntarily switch to an alternative product which impacts less on public water supply. The project aim is to reduce metaldehyde getting into water and giving farmers a voluntary alternative to legal restrictions on metaldehyde use.

Further information on the project can be found at the following website:


Project lead: Affinity Water
Project partners: Environment Agency, Metaldehyde Stewardship Group; Natural England; Local farmers and agronomists
Contact for more information: This email address is being protected from spambots. You need JavaScript enabled to view it.
Project start: Jan 2014
Project end: Mar 2017
Funding source: Affinity Water , Metaldehyde Stewardship Group , Natural England

Design by LTD Design Consultants and build by Garganey Consulting. From an original concept by the Herts and Middlesex Wildlife Trust.