Alan Mak, MP for the Havant constituency, has written to Portsmouth Water Chief Executive Robert Taylor calling for the company to reduce and eventually cease abstractions from the River Ems.

Alan Mak MP at the River Ems
In his letter to Robert Taylor, Mr Mak says the potential loss of unique habitats along the River Ems “would represent a profound loss to biodiversity”.
Portsmouth Water produced the River Ems River Baseline Report in December 2022 which calls for greater monitoring of the Ems. However, the MP argues that this does not go far enough and more protective measures are needed.
Mr Mak has called on the company to take steps to reduce the environmental impact of abstractions from the Ems, produce interim measures to minimise the impact of abstractions on the Ems and its ecosystem, and develop a long-term plan to limit and eventually eliminate abstractions from the Ems entirely.
The source of the River Ems is not located in the Havant Constituency – and the abstractions do not take place in the Havant Constituency either. However, the Ems does flow through the Havant Constituency and meets the sea in the town of Emsworth.
In recent years, water levels in the river have reduced significantly to the point where it has on occasion run dry. The river is one of only 200 chalk streams in the world and supports land based and aquatic wildlife.
Writing in response, the Portsmouth Water Chief Executive acknowledged the public’s concerns but states that abstractions are not from the River Ems itself. Robert Taylor has assured Alan Mak that Portsmouth Water are providing funds to survey the Ems and developing a 10-year Catchment Improvement Plan to safeguard local habitats. They have also pledged to reduce leaks and wastage from their pipes and water treatment works to reduce the need for abstractions.
Portsmouth Water are in the process of constructing the Havant Thicket Reservoir in partnership with others, which it is hoped will reduce the need for dependency on local aquifers and rivers.
Alan Mak said:
“The River Ems represents a unique ecosystem which is home to multiple rare habitats and species. Its destruction would represent a profound loss of biodiversity. That is why I am calling on Portsmouth Water to cease its abstraction in the river in the long term, and to take actions which will reduce the environmental effects of their activities on the local environment.”
Click here to read Robert Taylor’s response
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