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South West Water

South West Water serves a region of nearly 10,300 square kilometres across Cornwall, Devon and parts of Dorset and Somerset.

Each day the company supplies the region’s 1.67 million residents with over 420 million litres of treated water and disposes of around 235 ML of wastewater through an asset base that comprises 39 water treatment works and 15,146 km of water mains, and 645 wastewater treatment works and 14,710 km of sewers.

Wilmington STW (2024)
Nature-based solution trial for phosphorus removal in Honiton, Devon
Torquay (Abbey Park) Bathing Waters (2015)
Fleet Walk CSOs identified for overflow improvements
Cornish Phosphorus Removal Schemes (2008)
£2.8m phosphorous removal scheme at 3 STWs
Callington STW (2007)
£3.2m upgrade for catchment growth
Newham STW (2007)
Pre-fab package denitrification Biostyr® plant provides solution
Burrows WTW (2006)
A case of ‘environmental Sudoku’
Lands End STW (2006)
£6.7m project gives first time treatment for historic mining area
Ashford STW (2005)
£4.7m biological treatment process protects sensitive waters
Mullion & Lizard STW (2005)
£5.65m project provides first time sewage treatment
Slapton & Torcross STW (2005)
£4.9m project in environment sensitive area
Barnstaple & Bideford CSOs (2004)
Improving 32 CSOs raises oysters & mussels quality
Tamerton Foliot Wastewater Storage (2004)
Hayesend Farm project: removal of a DG5
Teign Estuary CSOs (2004)
Providing screening, storage & reduction of spills to estuary
Croyde STW (2003)
£5.5m new works to meet UWWTD
Dartmouth STW (2003)
First time sewage treatment for estuary towns
Lynmouth STW (2003)
£2m upgrade benefits ecology & water based recreation
Otterton STW (2003)
Providing secondary treatment in a beauty spot
Plymouth WWT Scheme (2003)
£14m investment meets Shellfish & Bathing Waters Regulations
Taw Torridge STW (2003)
£25.9m scheme delivered target capital & operating costs
Camborne STW (2002)
New sewage treatment works and pumping stations
Falmouth CSO Improvements (2002)
South West Water invest £5.5m to meet EC Shellfish Directive
Torbay STW (2002)
New STW & full treatment for Torbay, Paignton & Brixham