Storm overflow register · 2025 annual return

South West Water storm overflows, 2025

South West Water reported 1,365 storm overflows in England for 2025. Together they recorded 46,164 spills over 407,006 hours, an average of 33.8 spills per overflow against 20.4 across England. That ranks 10 of 10 companies, where 1 is the fewest spills per overflow. Counting the same overflows in both years, spills were down 18% on 2024.

178 overflows did not spill · 275 spilled more than 60 times · 1,313 had monitors working for 90% of the year or more · 334 sewage treatment works with overflows

Hours spilling by month, 2025

Hours spilling, all South West Water overflows, from the start/stop records. Spills running across a month end are split between the months.

All South West Water storm overflows

Sorted by hours spilling. Open an overflow for its permit, location, reasons for high spills and improvement status.

Overflow	Discharges to	Spills 2025	Hours 2025	Spills vs 2024	Monitor uptime
Northam Waste Water Pumping Station Storm discharge at pumping station Company site name NORTHAM FSCN SPST_PSCSOEO_WESTWARD HO 2 EA ID / permit SBB00852 · 2878 Outlet location SS44012977 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Westward Ho! Shellfish water Taw-Torridge Estuary 2024 spills / hours 6 / 12 Long-term average 11.4 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 19 hours spilling →	Bideford Bay & the Pill	10	19	up 67%	100%
Stokenham Caravan Park CSO Overflow on sewer network Company site name CARAVAN PARK_CSO_STOKENHAM EA ID / permit SBB01184 · 201706 Outlet location SX81264270 (OS grid reference) · View on Apple Maps WFD catchment The Gara (GB108046004930) 2024 spills / hours 3 / 2.8 Long-term average 7.8 spills a year (monitored since 2022) Monitor below 90% Power failure / issue · Resolved - Dec Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 19 hours spilling →	Slapton Ley (S)	28	19	up 833%	76%
Outer Hope Pumping Station Storm discharge at pumping station Company site name OUTER HOPE COVE SPST_PSCSOEO_HOPE COVE EA ID / permit SBB00892 · 202605 Outlet location SX67394001 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Hope Cove 2024 spills / hours 22 / 58 Long-term average 56.7 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 19 hours spilling →	Hope Cove (C)	14	19	down 36%	100%
Gun Cliff Pumping Station Storm discharge at pumping station Company site name GUN CLIFF SPST_PSCSOEO_LYME REGIS EA ID / permit SBB00519 · 200061/PC/01 Outlet location SY34279207 (OS grid reference) · View on Apple Maps WFD catchment Lim (GB108044009760) Bathing water Lyme Regis Church Cliff Beach 2024 spills / hours 12 / 76 Long-term average 5.8 spills a year Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 19 hours spilling →	River Lim	4	19	down 67%	100%
Barton Hill Road CSO Overflow on sewer network Company site name BARTON HILL RD_CSO_TORQUAY EA ID / permit SBB00077 · 201940 Outlet location SX90086623 (OS grid reference) · View on Apple Maps WFD catchment Aller Brook (Teign) - Upper (GB108046005330) 2024 spills / hours 67 / 106 Long-term average 43.0 spills a year (monitored since 2017) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 19 hours spilling →	Aller Brook via Sw Sewer	35	19	down 48%	100%
Lower Kelly Pscso/EO Storm discharge at pumping station Company site name KELLY_PSCSOEO_CALSTOCK EA ID / permit SBB00713 · 301613 Outlet location SX43426864 (OS grid reference) · View on Apple Maps WFD catchment PLYMOUTH TAMAR (GB520804714300) 2024 spills / hours 26 / 54 Long-term average 12.8 spills a year (monitored since 2022) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	River Tamar (E)	8	18	down 69%	100%
Dragons Pit Combined Sewer Overflow Overflow on sewer network Company site name DRAGONS PIT_CSO_BODMIN EA ID / permit SBB00375 · 301826 Outlet location SX07546535 (OS grid reference) · View on Apple Maps WFD catchment St Lawrence Stream (GB108049000040) Shellfish water Camel Estuary 2024 spills / hours 75 / 87 Long-term average 70.4 spills a year (monitored since 2018) High-spill reason (company) Not Applicable - Ongoing investigation Investigation UWWTR investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	Trib of St Lawrence Stream	36	18	down 52%	100%
1 Edna Terrace CSO Overflow on sewer network Company site name S/O ENTRY 1 EDNA TERRACE_CSO_PLYMOUTH EA ID / permit SBB00004 · 301737 Outlet location SX50155478 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Plymouth Hoe East 2024 spills / hours 14 / 11 Long-term average 12.4 spills a year (monitored since 2017) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	River Plym via SWS (Estuarine)	14	18	no change	100%
Torbay (Brokenbury) STW Inlet PS/ Storm discharge at pumping station Company site name GRANGE COURT SPS_PSCSOEO_PAIGNTON EA ID / permit SBB01252 · 201073 Outlet location SX88915912 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Goodrington 2024 spills / hours 2 / 2.5 Long-term average 4.4 spills a year Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	Clennon Valley Watercourse	10	18	up 400%	100%
Old Bridge Street Car Park CSO Overflow on sewer network Company site name OLD BRIDGE ST CAR PARK_CSO_TRURO EA ID / permit SBB00870 · NPSWQD006230 Outlet location SW82794489 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Fal Estuary 2024 spills / hours 8 / 6.8 Long-term average 10.6 spills a year Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 18 hours spilling →	River Allen	18	18	up 125%	100%
Camels Head WwTW Overflow on sewer network Company site name NORTH PROSPECT_CSO_PLYMOUTH EA ID / permit SBB00205 · 302613 Outlet location SX44505712 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 4 / 2.7 Long-term average 2.3 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	Weston Mill Lake(E)	8	18	up 100%	96%
North Tawton Pscso/EO Storm discharge at pumping station Company site name NORTH TAWTON SPST_PSCSOEO_NORTH TAWTON EA ID / permit SBB00849 · 201668 Outlet location SS65630169 (OS grid reference) · View on Apple Maps WFD catchment Taw (Source to Bullow Brook) (GB108050008250) 2024 spills / hours 1 / 5.9 Long-term average 9.3 spills a year (monitored since 2023) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	River Taw	27	18	up 2600%	98%
Churchinford STW Storm tank at sewage works Sewage works Churchinford Company site name CHURCHINFORD STW_SSO_CHURCHINFORD EA ID / permit SBB00268 · 002728/FN/01 Outlet location ST22021250 (OS grid reference) · View on Apple Maps WFD catchment Upper River Otter (GB108045015120) 2024 spills / hours 28 / 133 Long-term average 14.2 spills a year (monitored since 2021) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 18 hours spilling →	River Otter	6	18	down 79%	95%
Tredenham Close CSO Overflow on sewer network Company site name TREDENHAM CLOSE_CSO_PAR EA ID / permit SBB01273 · EPRYB3993NQ Outlet location SX07315368 (OS grid reference) · View on Apple Maps WFD catchment Par River (Lower) (GB108048002290) Bathing water Par Sands Shellfish water St Austell Bay 2024 spills / hours 7 / 13 Long-term average 5.1 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	St Blazey Stream	7	17	no change	100%
Calenick Pumping Station Storm discharge at pumping station Company site name CALENICK SPST_PSCSOEO_TRURO EA ID / permit SBB00200 · 301590 Outlet location SW82194310 (OS grid reference) · View on Apple Maps WFD catchment Calenick Stream (GB108048001250) Shellfish water Fal Estuary 2024 spills / hours 2 / 3.5 Long-term average 2.5 spills a year (monitored since 2016) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 17 hours spilling →	River Tinney	6	17	up 200%	100%
Dartington Close Pumping Station Storm discharge at pumping station Company site name DARTINGTON CLOSE SPS_PSCSOEO_TORRINGTON EA ID / permit SBB00351 · 200080 Outlet location SS50241974 (OS grid reference) · View on Apple Maps WFD catchment Torridge (Lew to Estuary) (GB108050014660) Shellfish water Taw-Torridge Estuary 2024 spills / hours 3 / 12 Long-term average 7.6 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 17 hours spilling →	Common Lake Stream	5	17	up 67%	100%
Mill Creek Pumping Station Storm discharge at pumping station Company site name MILL CREEK SPS_PSCSOEO_DITTISHAM EA ID / permit SBB00776 · 202742 Outlet location SX85935522 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Dittisham, Dart Estuary Shellfish water Dart 2024 spills / hours 32 / 112 Long-term average 24.7 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 16 hours spilling →	Dittisham Mill Creek-Estuarine	15	16	down 53%	100%
Colleton Grove CSO Overflow on sewer network Company site name COLLETON GROVE_CSO_EXETER EA ID / permit SBB00288 · 201927 Outlet location SX92239189 (OS grid reference) · View on Apple Maps WFD catchment Exe (Creedy to Estuary) (GB108045009040) Shellfish water Exe Estuary 2024 spills / hours 19 / 24 Long-term average 11.1 spills a year (monitored since 2018) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 16 hours spilling →	River Exe via SWS	16	16	down 16%	100%
Thompsons Transport CSO Overflow on sewer network Company site name THOMPSONS TRANSPORT_CSO_MORETONHAMPSTEAD EA ID / permit SBB01239 · 201755 Outlet location SX75428560 (OS grid reference) · View on Apple Maps WFD catchment Wray Brook (GB108046008330) 2024 spills / hours 22 / 13 Long-term average 18.3 spills a year (monitored since 2022) High-spill reason (company) Not Applicable - Ongoing investigation Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	Wadley Brook (S)	33	16	up 50%	100%
Broadclyst (Side) Pumping Station Storm discharge at pumping station Company site name SIDE SPS_PSCSOEO_BROADCLYST EA ID / permit SBB00163 · 201639 Outlet location SX98519740 (OS grid reference) · View on Apple Maps WFD catchment Upper Clyst (GB108045008860) Shellfish water Exe Estuary 2024 spills / hours 24 / 37 Long-term average 17.2 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	River Clyst Valley via SWS	17	16	down 29%	100%
Sampford Courtney STW Inlet overflow at sewage works Sewage works Sampford Courtney Company site name SAMPFORD COURTENAY STW_SO_SAMPFORD COURT EA ID / permit SBB01047 · NRA-SW-3657 Outlet location SS63370117 (OS grid reference) · View on Apple Maps WFD catchment Hole Brook (GB108050014090) 2024 spills / hours 17 / 21 Long-term average 13.8 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	Tributary of Hole Brook	15	16	down 12%	100%
Peverell Park Road CSO Overflow on sewer network Company site name PEVERELL PARK ROAD_CSO_PLYMOUTH EA ID / permit SBB00933 · 301742 Outlet location SX46225441 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 26 / 12 Long-term average 29.7 spills a year (monitored since 2012) High-spill reason (company) Not Applicable - Ongoing investigation Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	Stonehouse Creek via SWS (Est)	31	16	up 19%	96%
Billacombe Pumping Station Storm discharge at pumping station Company site name BILLACOMBE_PSCSOEO_PLYMOUTH EA ID / permit SBB00107 · 032897/PC/01 Outlet location SX50625387 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Plymouth Hoe East 2024 spills / hours 17 / 13 Long-term average 31.9 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 16 hours spilling →	Pomphlett Creek (Estuarine)	19	16	up 12%	100%
Port Isaac Pumping Station Storm discharge at pumping station Company site name PORT ISAAC SPS_PSCSOEO_PORT ISAAC EA ID / permit SBB00959 · 301630 Outlet location SW99478099 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 5 / 3.1 Long-term average 6.0 spills a year (monitored since 2020) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	The Haven, Atlantic Ocean	16	15	up 220%	100%
Harlech Close CSO Overflow on sewer network Company site name HARLECH CLOSE_CSO_PLYMOUTH EA ID / permit SBB00029 · 301711 Outlet location SX49055735 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Plymouth Hoe East 2024 spills / hours 12 / 5.7 Long-term average 12.6 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Trib of Leigham Mill Stream	19	15	up 58%	100%
Court Barton Farm CSO Overflow on sewer network Company site name COURT BARTON FARM_CSO_LAPFORD EA ID / permit SBB00313 · 201846 Outlet location SS73610762 (OS grid reference) · View on Apple Maps WFD catchment Dalch (GB108050014650) 2024 spills / hours 22 / 5.5 Long-term average 22.3 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	River Dalch (S)	19	15	down 14%	99%
Mylor Bridge WwTW Inlet overflow at sewage works Sewage works Mylor Bridge Company site name MYLOR STW_SO_MYLOR BRIDGE EA ID / permit SBB00824 · 302505 Outlet location SW79933638 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Fal Estuary 2024 spills / hours 42 / 178 Long-term average 72.7 spills a year (monitored since 2016) Investigation UWWTR investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 15 hours spilling →	Mylor Creek	4	15	down 90%	100%
The Post Office CSO Overflow on sewer network Company site name POST OFFICE_CSO_SOUTH ZEAL EA ID / permit SBB01234 · 201716 Outlet location SX65179353 (OS grid reference) · View on Apple Maps WFD catchment Taw (Source to Bullow Brook) (GB108050008250) 2024 spills / hours 19 / 37 Long-term average 14.3 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 14 hours spilling →	Stream (S)	16	14	down 16%	100%
Velator Pumping Station Storm discharge at pumping station Company site name VELATOR SPST_PSCSOEO_BRAUNTON EA ID / permit SBB01300 · 203430 Outlet location SS48543540 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Taw-Torridge Estuary 2024 spills / hours 22 / 24 Long-term average 31.6 spills a year (monitored since 2010) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 14 hours spilling →	Tidal River Caen & Knowl Water	25	14	up 14%	100%
191 High Street CSO Overflow on sewer network Company site name HIGH STREET_CSO_HONITON EA ID / permit SBB00013 · 201849 Outlet location ST15950055 (OS grid reference) · View on Apple Maps WFD catchment Middle River Otter (GB108045009180) 2024 spills / hours 31 / 27 Long-term average 24.5 spills a year (monitored since 2023) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 14 hours spilling →	The Gissage (S)	26	14	down 16%	100%
Polperro WwTW Inlet overflow at sewage works Sewage works Polperro Company site name POLPERRO FINESCREEN STW_CSO_POLPERRO EA ID / permit SBB00953 · EPRCP3620XD Outlet location SX21285084 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 26 / 163 Long-term average 41.5 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 14 hours spilling →	The English Channel	12	14	down 54%	100%
Yelland Pumping Station Storm discharge at pumping station Company site name YELLAND SPS_PSCSOEO_BARNSTAPLE EA ID / permit SBB01388 · 203126 Outlet location SS47573218 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Taw-Torridge Estuary 2024 spills / hours 42 / 21 Long-term average 28.8 spills a year Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 14 hours spilling →	River Taw Estuary(E)	27	14	down 36%	100%
Mayflower DRIVE_CSO_BRIXHAM Overflow on sewer network EA ID / permit SBB01424 · Permit applied for Outlet location SX92205535 (OS grid reference) · View on Apple Maps WFD catchment Lyme Bay West (GB650806420000) 2024 spills / hours 26 / 25 Long-term average 19.0 spills a year (monitored since 2023) High-spill reason (company) Not Applicable - Ongoing investigation Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 14 hours spilling →	Higher Brixham Stream(s)	31	14	up 19%	97%
Chillington Combined Sewer Overflow Overflow on sewer network Company site name MEADOWSIDE CHILLINGTON_CSO EA ID / permit SBB00246 · 203108 Outlet location SX78974266 (OS grid reference) · View on Apple Maps WFD catchment Avon (DevonTidal) and Sth Hams - Frogmore (GB108046004760) Shellfish water Salcombe 2024 spills / hours 22 / 12 Long-term average 18.6 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 14 hours spilling →	Tributary of Frogmore Creek	25	14	up 14%	100%
Old Gateway 2 Combined Sewer of Overflow on sewer network Company site name OLD GATEWAY 2_CSO_OKEHAMPTON EA ID / permit SBB00874 · 201726 Outlet location SX58849527 (OS grid reference) · View on Apple Maps WFD catchment East Okemont River (GB108050008100) 2024 spills / hours 24 / 11 Long-term average 18.5 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 14 hours spilling →	East Okement River	24	14	no change	98%
Galmpton Pumping Station Storm discharge at pumping station Company site name KILN ROAD SPS_PSCSOEO_GALMPTON EA ID / permit SBB00485 · 202732 Outlet location SX88315621 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Dittisham, Dart Estuary Shellfish water Dart 2024 spills / hours 32 / 41 Long-term average 14.7 spills a year (monitored since 2015) Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 14 hours spilling →	Galmpton Stream	10	14	down 69%	100%
Marine Road No 1 Pumping Station Storm discharge at pumping station Company site name MARINE ROAD NO1 SPS_PSCSOEO_PLYMSTOCK EA ID / permit SBB00746 · 032893/PC/01 Outlet location SX49915332 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Plymouth Hoe East; Plymouth Hoe West 2024 spills / hours 19 / 26 Long-term average 10.1 spills a year (monitored since 2010) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 13 hours spilling →	The Cattewater Plym Estuary	8	13	down 58%	100%
The Green Combined Sewer Overflow Overflow on sewer network Company site name THE GREEN_CSO_OTTERTON EA ID / permit SBB01224 · 201842 Outlet location SY07938529 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 17 / 24 Long-term average 11.2 spills a year (monitored since 2019) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 13 hours spilling →	River Otter	15	13	down 12%	97%
Lerryn Car Park Overflow Storm discharge at pumping station Company site name LERRYN SPST_PSCSOEO_LERRYN EA ID / permit SBB00682 · 301663 Outlet location SX14005665 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 101 / 1,913 Long-term average 62.4 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 13 hours spilling →	Tidal River Lerryn	19	13	down 81%	100%
Okehampton Road CSO Overflow on sewer network Company site name OKEHAMPTON RD_CSO_EXETER EA ID / permit SBB00867 · 201903 Outlet location SX92999067 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Exe Estuary 2024 spills / hours 7 / 6.0 Long-term average 7.7 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 13 hours spilling →	River Exe via SWS	11	13	up 57%	100%
Grove Place No.1 CSO Overflow on sewer network Company site name GROVE PLACE NO. 1_CSO_FALMOUTH EA ID / permit SBB00518 · 303019 Outlet location SW81313245 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Fal Estuary 2024 spills / hours 10 / 3.9 Long-term average 8.5 spills a year (monitored since 2015) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 12 hours spilling →	Penryn River(E)	10	12	no change	100%
Sweetbrier Lane CSO Overflow on sewer network Company site name SWEETBRIER LANE_CSO_EXETER EA ID / permit SBB01199 · 202099 Outlet location SX94819260 (OS grid reference) · View on Apple Maps WFD catchment North Brook (East Devon) (GB108045009050) Shellfish water Exe Estuary 2024 spills / hours 16 / 19 Long-term average 12.5 spills a year (monitored since 2017) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 12 hours spilling →	Northbrook	16	12	no change	100%
Old Hill PS Storm discharge at pumping station Company site name OLD HILL SPS_PSCSOEO_FALMOUTH EA ID / permit SBB00876 · 303008 Outlet location SW79733371 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Fal Estuary 2024 spills / hours 12 / 75 Long-term average 12.3 spills a year Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 12 hours spilling →	Penryn River(E)	10	12	down 17%	100%
Mullion Transfer PS Storm discharge at pumping station Company site name MERES VALLEY SPST_PSCSOEO_MULLION EA ID / permit SBB00819 · 302947 Outlet location SW66511902 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Polurrian Cove 2024 spills / hours 21 / 65 Long-term average 25.9 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 12 hours spilling →	Polurrian Cove (C)	9	12	down 57%	100%
Ringmore Road CSO Overflow on sewer network Company site name RINGMORE RD_CSO_SHALDON EA ID / permit SBB01027 · 203086 Outlet location SX92647236 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Teign Estuary 2024 spills / hours 21 / 25 Long-term average 16.6 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 12 hours spilling →	Teign Estuary (E)	14	12	down 33%	94%
Stoodleigh STW Inlet overflow at sewage works Sewage works Stoodleigh Company site name STOODLEIGH STW_SO_STOODLEIGH EA ID / permit SBB01188 · NRA-SW-1567 Outlet location SS92431898 (OS grid reference) · View on Apple Maps WFD catchment Exe (Barle to Culm) (GB108045015050) 2024 spills / hours 14 / 23 Long-term average 15.5 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 12 hours spilling →	Stoodleigh Stream	21	12	up 50%	100%
Paignton (Cockington Lane) PS Storm discharge at pumping station Company site name COCKINGTON LANE SPS_PSCSOEO_TORQUAY 2 EA ID / permit SBB00605 · 200223 Outlet location SX90396304 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Torre Abbey 2024 spills / hours 5 / 5.0 Long-term average 3.9 spills a year Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 12 hours spilling →	Cockington Stream	6	12	up 20%	100%
Torrington Street PS Storm discharge at pumping station Company site name TORRINGTON STREET SPS_PSCSOEO_BIDEFORD EA ID / permit SBB01261 · 203122 Outlet location SS45512608 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Taw-Torridge Estuary 2024 spills / hours 18 / 20 Long-term average 19.9 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	River Torridge Estuary (E)	8	11	down 56%	100%
Bow Wastewater Treatment Works Inlet overflow at sewage works Sewage works Bow Company site name BOW STW_PSCSOEO_BOW EA ID / permit SBB00142 · DRA 1382 Outlet location SS71610211 (OS grid reference) · View on Apple Maps WFD catchment Upper River Yeo (Lapford) (GB108050008270) 2024 spills / hours 7 / 6.0 Long-term average 3.0 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	River Yeo	8	11	up 14%	100%
Mill Bridge CSO Overflow on sewer network Company site name MILLBRIDGE_CSO_PLYMOUTH EA ID / permit SBB00775 · 301751 Outlet location SX46225441 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 10 / 5.4 Long-term average 8.4 spills a year (monitored since 2011) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 11 hours spilling →	Stonehouse Creek via SWS (Est)	12	11	up 20%	100%

Sewage treatment works

Storm tanks and inlet overflows at each South West Water sewage works. The figures are 2025 spills.

← All water companies · Contains Environment Agency data licensed under the Open Government Licence v3.0. How to read the data.