South West Water Improvement Programmes

South West Water Limited is the licenced company for South West Water, Isles of Scilly, Bournemouth Water and Bristol Water.


Restormel works SWT-2018-00002

Discolouration SWT-2018-00004

St Cleer works SWT-2018-00003

Littlehempston works SWT-2018-00005

Stithians works SWT-2018-00006

Prewley works and supply system SWB-2021-00009

Service reservoir and tank inspection SWB-2020-00009

Scientific Investigations SWB-2020-00010

Maintenance and Resilience Hazard Review SWB-2020-00002

Alderney Works Replacement Treatment Process SWB-2021-00008

Knapp Mill Works Replacement Treatment Process SWB-2021-00010

Alderney Water Treatment Works Disinfection Improvements SWB-2020-00007

Knapp Mill Treatment Works Disinfection Improvements SWB-2020-00008

Lanner Service Reservoir SWB-2022-00008

Bristol Water (South West Water Ltd) Notices*

*On 01 February 2023, Ofwat varied the licence of South West Water Ltd to include the Bristol Water area. Consequently, Bristol Water Plc’s licence was revoked.

Clevedon Water Treatment Works BRL 4092

Alderley Water Treatment Works BRL-2020-00001

UV Biofilm Notice BRL-2020-00004

Cheddar Water Treatment Works BRL-2021-00001

Blackdown Service Reservoir BRL-2022-00003

Discolouration: Various Supply Zones BRL-2021-00003 V4

Isles of Scilly (South West Water Ltd) Notices**

** Water supplies on the Isles of Scilly became public supplies on 01 April 2020. South West Water Ltd has the operating licence for these supplies. These improvement programmes represent work being undertaken by South West Water Ltd to secure wholesome public water supplies on the Islands.

St Agnes Water Quality Improvements ISC-2021-00006

St Martins Water Quality Improvements ISC-2021-00007

St Marys Water Quality Improvements ISC-2021-00008

Tresco Water Quality Improvements ISC-2021-00009

Bryher Water Quality Improvements ISC-2021-00010


Lead BRL-2023-00003


Notice Reference: SWB-2021-00011

Notice Reference: BRL-2021-00005

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