The Environment Agency has published proposals to reduce abstractions by Thames Water in order to protect the River Kennet – one of three of the UK's iconic 'chalk streams' - unique river systems found only in England and pockets of northern France.
The Kennet, together with the rivers Itchen and the Upper Lee, also happen to be among the most heavily abstracted rivers in the UK.
The Environment Agency is proposing to change the licence number held by Thames Water Utilities Limited at Axford Pumping Station in order to protect the River Kennet, which is designated as a Site of Special Scientific Interest. The Agency is also proposing to revoke the utility’s licence at Ogbourne Pumping Station.
Thames Water’s licence at Axford allows it to take a total of 13,100 cubic metres (m³) of water a day and 3,660,000 m³ of water a year (or up to 4,049,000 m³ a year in an emergency) until the 31 March 2017. From 1 April 2017 Thames will be allowed to abstract a total of13,100 m³ a day, with the overall annual total reduced to 3,410,000 m³ a year.
The proposal to change the licence includes two new conditions as follows:
- The first condition will restrict abstraction so that it does not exceed 6,000 m³ a day when the flow in the River Kennet as gauged by the Environment Agency at its Knighton Gauging Station is equal to or less than 100,000 m³ per day.
- The second condition will restrict the transfer of water outside of the Kennet Catchment so that it does not exceed 3,000 m³ a day when the flow in the River Kennet as gauged by the Environment Agency at its Knighton Gauging Station is equal to or less than 100,000 m³ per day.
Both conditions will become effective on 1 April 2017. The Environment Agency also proposes to include a time limit of 31 March 2023 to the licence.
The Agency is also separately proposing to cancel Thames Water’s existing licence at Ogbourne Pumping Station where it can currently abstract a total of 13,638 m³ of water a day and an overall total of 2,954,962 m³ of water a year. The proposal is to revoke the licence with effect from 1 April 2017.
The Environment Agency has made the proposals, together with similar proposals for other water companies, as part of a programme to help restore sustainable abstraction.