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
West Down STW Storm tank at sewage works Sewage works West Down Company site name WESTDOWN STW_SSO_WEST DOWN EA ID / permit SBB01342 · NRA-SW-0423 Outlet location SS50504230 (OS grid reference) · View on Apple Maps WFD catchment Bradwell Stream (GB108050020060) 2024 spills / hours 204 / 714 Long-term average 171.8 spills a year (monitored since 2021) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation UWWTR investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 227 hours spilling →	Unnamed Trib River Caen	135	227	down 34%	100%
East Knowstone STW Inlet overflow at sewage works Sewage works East Knowstone Company site name KNOWSTONE EAST STW_SO_KNOWSTONE EA ID / permit SBB00392 · SWWA 108 Outlet location SS83702310 (OS grid reference) · View on Apple Maps WFD catchment Crooked Oak (GB108050014120) 2024 spills / hours 111 / 480 Long-term average 83.3 spills a year (monitored since 2022) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 225 hours spilling →	Tributary of Crooked Oak	102	225	down 8%	99%
Sennen Cove Pumping Station Storm discharge at pumping station Company site name SENNEN SPS_PSCSOEO_LANDS END EA ID / permit SBB01068 · 303620 Outlet location SW34942642 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Sennen 2024 spills / hours 26 / 320 Long-term average 25.3 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 224 hours spilling →	Atlantic Ocean,Off Sennen Cove	21	224	down 19%	99%
Lower Trevilla Pumping Station Storm discharge at pumping station Company site name TREVILLA SPS_PSCSOEO_FEOCK EA ID / permit SBB00718 · 301596 Outlet location SW82553887 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Fal Estuary 2024 spills / hours 23 / 285 Long-term average 28.4 spills a year (monitored since 2016) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 224 hours spilling →	Pill Creek	26	224	up 13%	100%
Ivybridge STW Storm tank at sewage works Sewage works Ivybridge Company site name IVYBRIDGE STW_SSO_IVYBRIDGE 2 EA ID / permit SBB00618 · 203299 Outlet location SX63165566 (OS grid reference) · View on Apple Maps WFD catchment Erme (GB108046005200) Bathing water Mothecombe; Coastguards Beach, Erme Estuary 2024 spills / hours 56 / 468 Long-term average 39.9 spills a year (monitored since 2015) High-spill reason (company) Performance - SW Infiltration Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 223 hours spilling →	River Erme	37	223	down 34%	100%
Horn Bridge Pseo/CSO Storm discharge at pumping station Company site name HORN BRIDGE SPST_PSCSOEO_LYME REGIS EA ID / permit SBB00595 · 003956/PC/01 Outlet location SY33669286 (OS grid reference) · View on Apple Maps WFD catchment Lim (GB108044009760) Bathing water Lyme Regis Church Cliff Beach 2024 spills / hours 36 / 306 Long-term average 27.6 spills a year (monitored since 2010) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 222 hours spilling →	River Lim	32	222	down 11%	100%
East Charleton Pumping Station Storm discharge at pumping station Company site name E CHARLETON SPS_PSCSOEO_EAST CHARLETON EA ID / permit SBB00391 · 201660 Outlet location SX76274260 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Salcombe 2024 spills / hours 28 / 592 Long-term average 25.8 spills a year (monitored since 2016) 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 222 hours spilling →	Trib of Frogmore Creek	15	222	down 46%	99%
Whitleigh Wood CSO Overflow on sewer network Company site name WHITLEIGH WOOD_CSO_PLYMOUTH EA ID / permit SBB01358 · 302854 Outlet location SX47646039 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 38 / 170 Long-term average 24.5 spills a year (monitored since 2015) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 221 hours spilling →	Tributary of Tamerton Lake(S)	44	221	up 16%	100%
Duke Street Pumping Station Storm discharge at pumping station Company site name DUKE STREET SPST_PSCSOEO_CULLOMPTON EA ID / permit SBB00378 · 201542 Outlet location ST02380673 (OS grid reference) · View on Apple Maps WFD catchment Lower Culm (GB108045014970) 2024 spills / hours 48 / 608 Long-term average 41.0 spills a year (monitored since 2017) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 218 hours spilling →	Cullompton Mill Leat	19	218	down 60%	100%
59 Bretonside CSO Overflow on sewer network Company site name 59 BRETONSIDE_CSO_PLYMOUTH EA ID / permit SBB00032 · 301752 Outlet location SX48395442 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Plymouth Hoe East 2024 spills / hours 70 / 363 Long-term average 64.8 spills a year (monitored since 2017) High-spill reason (company) Not asset maintenance - hydraulic capacity Monitor below 90% Installation set-up/design issue · Not Applicable - Ongoing investigation Investigation UWWTR investigation ongoing, Operational investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 217 hours spilling →	Sutton Harbour via SWS (Estu.)	51	217	down 27%	90%
Tintagel Castle Road Pump Station Storm discharge at pumping station Company site name TINTAGEL CASTLE ROAD_PSCSOEO_TINTAGEL EA ID / permit SBB01244 · NPSWQD008114 Outlet location SX05408936 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 19 / 119 Long-term average 18.0 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 215 hours spilling →	Atlantic Ocean	26	215	up 37%	100%
Radford STW Storm tank at sewage works Sewage works Radford Company site name RADFORD STW_SSO_PLYMOUTH EA ID / permit SBB01012 · 301935 Outlet location SX50195283 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Plymouth Hoe East 2024 spills / hours 6 / 28 Long-term average 10.8 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 215 hours spilling →	Hooe Lake	21	215	up 250%	100%
George Nympton WwTW SSO Storm tank at sewage works Sewage works George Nympton Company site name GEORGE NYMPTON STW_SSO_GEORGE NYMPTON EA ID / permit SBB00489 · NRA-SW-1255 Outlet location SS70062287 (OS grid reference) · View on Apple Maps WFD catchment Mole (Bray to Yeo) (GB108050014110) 2024 spills / hours 21 / 24 Long-term average 37.3 spills a year (monitored since 2022) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 214 hours spilling →	Trib of River Mole	49	214	up 133%	98%
Dittisham WwTW Inlet overflow at sewage works Sewage works Dittisham Company site name DITTISHAM MAIN STW_SO_DITTISHAM EA ID / permit SBB00365 · 202711 Outlet location SX86595500 (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 68 / 435 Long-term average 53.6 spills a year High-spill reason (company) Performance - SW Infiltration Investigation Operational investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 212 hours spilling →	River Dart Estuary	46	212	down 32%	100%
CSO at North Parade Overflow on sewer network Company site name 24 NORTH PARADE_CSO_FALMOUTH EA ID / permit SBB00338 · 303011 Outlet location SW79893392 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Fal Estuary 2024 spills / hours 42 / 40 Long-term average 41.0 spills a year (monitored since 2015) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 212 hours spilling →	Penryn River(E)	97	212	up 131%	100%
Riverview Pscso/EO Storm discharge at pumping station Company site name RIVERVIEW No2 SPS_PSCSOEO_SALTASH EA ID / permit SBB01032 · 302592 Outlet location SX42995947 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 20 / 175 Long-term average 18.8 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 212 hours spilling →	Saltmill Creek(E)	20	212	no change	100%
Pensilva Pumping Station Storm discharge at pumping station Company site name PENSILVA SPST_PSCSOEO_PENSILVA EA ID / permit SBB00927 · 303531 Outlet location SX28976881 (OS grid reference) · View on Apple Maps WFD catchment Tiddy (GB108047003890) 2024 spills / hours 27 / 313 Long-term average 22.6 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 206 hours spilling →	Tributary of the River Tiddy	22	206	down 19%	98%
Bossiney Back Lane Pumping Station Storm discharge at pumping station Company site name BOSSINEY BACK LANE_PSCSOEO_TINTAGEL EA ID / permit SBB00137 · NPSWQD008115 Outlet location SX06008932 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 39 / 325 Long-term average 34.8 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 206 hours spilling →	Atlantic Ocean	22	206	down 44%	100%
Abbotsham WwTW Inlet overflow at sewage works Sewage works Abbotsham Company site name ABBOTSHAM STW_SO_ABBOTSHAM EA ID / permit SBB00037 · DRA 459 Outlet location SS42802678 (OS grid reference) · View on Apple Maps WFD catchment Kenwith Stream (GB108050014500) 2024 spills / hours 329 / 555 Long-term average 247.9 spills a year (monitored since 2017) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Env Act (SODRP) improvement ongoing, UWWTR improvement ongoing Volume & pollution Estimate from 205 hours spilling →	Kenwith Stream	196	205	down 40%	99%
Market Road CSO Overflow on sewer network Company site name MARKET ROAD_CSO_PLYMPTON EA ID / permit SBB00747 · 302253 Outlet location SX53615615 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Plymouth Hoe East 2024 spills / hours 56 / 265 Long-term average 47.6 spills a year (monitored since 2016) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 203 hours spilling →	Longbrook	46	203	down 18%	100%
Clennon Valley Pumping Station Overflow on sewer network Company site name CLENNON VALLEY SPS_PSCSOEO_PAIGNTON 1 EA ID / permit SBB00276 · 201396 Outlet location SX89515955 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Goodrington 2024 spills / hours 34 / 256 Long-term average 24.9 spills a year (monitored since 2011) 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 201 hours spilling →	English Channel	24	201	down 29%	94%
PS-DY2, North Yard, Devonport Storm discharge at pumping station Company site name DOCKYARD No2 SPS_PSCSOEO_PLYMOUTH EA ID / permit SBB00990 · 301986 Outlet location SX44835605 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 103 / 1,021 Long-term average 144.9 spills a year (monitored since 2016) Investigation UWWTR investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 201 hours spilling →	River Tamar(E)	28	201	down 73%	100%
Forder No 1 Pscso/EO Storm discharge at pumping station Company site name FORDER MAIN No1 SPS_PSCSOEO_SALTASH EA ID / permit SBB00469 · 302102 Outlet location SX41305839 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 25 / 174 Long-term average 16.6 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 201 hours spilling →	River Lyner (S)	28	201	up 12%	99%
Comminutor House CSO Overflow on sewer network Company site name COMMINUTOR HOUSE GOULD RD_CSO_SALCOMBE EA ID / permit SBB00298 · 003218/CS/01 Outlet location SX73893928 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Mill Bay 2024 spills / hours 109 / 251 Long-term average 97.9 spills a year (monitored since 2010) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation UWWTR investigation ongoing, Operational investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 200 hours spilling →	Shadycombe Creek	89	200	down 18%	97%
South Zeal Pumping Station Storm discharge at pumping station Company site name SOUTH ZEAL SPS_PSCSOEO_SOUTH ZEAL EA ID / permit SBB01106 · 203707 Outlet location SX65459383 (OS grid reference) · View on Apple Maps WFD catchment Taw (Source to Bullow Brook) (GB108050008250) 2024 spills / hours 37 / 189 Long-term average 37.3 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 199 hours spilling →	Tributary of River Taw	29	199	down 22%	100%
Hemyock Wastewater Treatment Works Inlet overflow at sewage works Sewage works Hemyock Company site name HEMYOCK STW_SO_HEMYOCK EA ID / permit SBB00565 · 202474 Outlet location ST13391388 (OS grid reference) · View on Apple Maps WFD catchment Middle Culm (GB108045014980) 2024 spills / hours 44 / 204 Long-term average 20.8 spills a year (monitored since 2021) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 192 hours spilling →	River Culm	36	192	down 18%	100%
Old Woodbury Salterton STW CSO Overflow on sewer network Company site name OLD WOODBURY SALTERTON STW_CSO_WOODBURY EA ID / permit SBB00884 · NRA-SW-0271 Outlet location SY01288934 (OS grid reference) · View on Apple Maps WFD catchment Grindle Brook (GB108045008710) Shellfish water Exe Estuary 2024 spills / hours 24 / 144 Long-term average 13.1 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 192 hours spilling →	Trib of Grindle Brook via SWS	27	192	up 13%	97%
Pottery Quay Pumping Station Storm discharge at pumping station Company site name POTTERY QUAY SPS_PSCSOEO_PLYMOUTH EA ID / permit SBB00975 · 301990 Outlet location SX44765530 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 0 / 0.0 Long-term average 34.7 spills a year (monitored since 2016) High-spill reason (company) Not Applicable - Ongoing investigation Investigation UWWTR investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 190 hours spilling →	Plymouth Sound (Estuarine)	40	190	up from 0	100%
Ayliffe'S Bridge CSO Overflow on sewer network Company site name AYLIFFE'S FIELD_CSO_BOVEY TRACEY EA ID / permit SBB00061 · 201806 Outlet location SX81687811 (OS grid reference) · View on Apple Maps WFD catchment Lower Bovey (GB108046008470) Shellfish water Teign Estuary 2024 spills / hours 30 / 85 Long-term average 42.6 spills a year (monitored since 2018) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 190 hours spilling →	River Bovey	43	190	up 43%	100%
Southway Drive CSO Overflow on sewer network Company site name SOUTHWAY DRIVE_CSO_PLYMOUTH EA ID / permit SBB01110 · 302655 Outlet location SX48466050 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 29 / 68 Long-term average 15.4 spills a year High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 188 hours spilling →	Southway Stream(S)	54	188	up 86%	100%
Westleigh Pumping Station Storm discharge at pumping station Company site name WESTLEIGH SPS_PSCSOEO_BIDEFORD EA ID / permit SBB01351 · 200201 Outlet location SS46782900 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 34 / 405 Long-term average 25.3 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 186 hours spilling →	River Torridge Estuary(E)	18	186	down 47%	100%
Okehampton STW Inlet overflow at sewage works Sewage works Okehampton Company site name HILL BARTON STW_SO_OKEHAMPTON EA ID / permit SBB00868 · 202463 Outlet location SX59879826 (OS grid reference) · View on Apple Maps WFD catchment Middle River Okement (GB108050008110) 2024 spills / hours 62 / 195 Long-term average 75.1 spills a year (monitored since 2016) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 184 hours spilling →	River Okement(S)	58	184	down 6%	100%
St Giles in the Wood STW Storm tank at sewage works Sewage works St Giles In The Wood Company site name ST GILES IN THE WOOD STW_SSO_TORRINGTON EA ID / permit SBB01135 · 203012 Outlet location SS53591882 (OS grid reference) · View on Apple Maps WFD catchment Whitsleigh Down Brook (GB108050014350) 2024 spills / hours 26 / 559 Long-term average 30.8 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 184 hours spilling →	Dodscott Brook(S)	21	184	down 19%	100%
Crowsnest STW Inlet overflow at sewage works Sewage works Crowsnest Company site name CROWS NEST STW_SO_DARITE EA ID / permit SBB00330 · 302123 Outlet location SX26406920 (OS grid reference) · View on Apple Maps WFD catchment Seaton (GB108048002320) 2024 spills / hours 73 / 819 Long-term average 53.8 spills a year (monitored since 2021) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 184 hours spilling →	River Seaton (S)	40	184	down 45%	95%
Tedburn St Mary STW Inlet overflow at sewage works Sewage works Tedburn St Mary Company site name TEDBURN ST MARY STW_SO_TEDBURN ST MARY EA ID / permit SBB01212 · 203478 Outlet location SX82509394 (OS grid reference) · View on Apple Maps WFD catchment Culvery River (GB108045009220) 2024 spills / hours 40 / 178 Long-term average 26.0 spills a year (monitored since 2021) High-spill reason (company) Performance - SW Infiltration Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 184 hours spilling →	Lilly Brook(S)	40	184	no change	100%
Lords Meadow WwTW Storm tank at sewage works Sewage works Lords Meadow Company site name LORDS MEADOW STW_SSO_CREDITON EA ID / permit SBB00704 · NRA-SW-0215 Outlet location SS84880062 (OS grid reference) · View on Apple Maps WFD catchment Middle Creedy (GB108045009090) 2024 spills / hours 33 / 380 Long-term average 25.3 spills a year (monitored since 2018) Monitor below 90% Power failure / issue · Not Applicable - Ongoing investigation Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 182 hours spilling →	River Yeo/River Creedy	16	182	down 52%	74%
Quenchwell Pumping Station Storm discharge at pumping station Company site name QUENCHWELL SPS_PSCSOEO_CARNON DOWNS EA ID / permit SBB01002 · 302992 Outlet location SW79684083 (OS grid reference) · View on Apple Maps WFD catchment Lower River Carnon (GB108048001231) Shellfish water Fal Estuary 2024 spills / hours 16 / 116 Long-term average 38.3 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 182 hours spilling →	Trib of Carnon River	27	182	up 69%	100%
Ventura CSO Overflow on sewer network Company site name EXETER ROAD_CSO_HONITON EA ID / permit SBB01301 · 201848 Outlet location ST15030027 (OS grid reference) · View on Apple Maps WFD catchment Middle River Otter (GB108045009180) 2024 spills / hours 27 / 70 Long-term average 30.5 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 180 hours spilling →	Ditch	44	180	up 63%	100%
Scarne Industrial Estate Pscso/EO Storm discharge at pumping station Company site name SCARNE IND ESTATE SPS_PSCSOEO_LAUNCESTON EA ID / permit SBB01056 · 301624 Outlet location SX34038333 (OS grid reference) · View on Apple Maps WFD catchment Lowley Brook (GB108047007920) 2024 spills / hours 30 / 181 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 179 hours spilling →	Lowley Brook (S)	24	179	down 20%	100%
Harberton WwTW Inlet overflow at sewage works Sewage works Harberton Company site name HARBERTON STW_SO_HARBERTON EA ID / permit SBB00535 · NRA-SW-5295 Outlet location SX77715829 (OS grid reference) · View on Apple Maps WFD catchment Harbourne River (GB108046005170) 2024 spills / hours 69 / 557 Long-term average 126.0 spills a year (monitored since 2019) High-spill reason (company) Performance - SW Infiltration Investigation UWWTR investigation completed, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 179 hours spilling →	Harbeton Stream	52	179	down 25%	100%
Lower North Street CSO Overflow on sewer network Company site name LWR NORTH ST_CSO_EXETER EA ID / permit SBB00715 · 201373 Outlet location SX91479250 (OS grid reference) · View on Apple Maps WFD catchment Exe (Creedy to Estuary) (GB108045009040) Shellfish water Exe Estuary 2024 spills / hours 70 / 205 Long-term average 75.3 spills a year (monitored since 2016) High-spill reason (company) Not Applicable - Ongoing investigation Investigation UWWTR investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 179 hours spilling →	Higher Leat via Sw Sewer	57	179	down 19%	100%
Brushford WwTW Inlet overflow at sewage works Sewage works Brushford Company site name BRUSHFORD STW_SO_BRUSHFORD EA ID / permit SBB00176 · 203020 Outlet location SS92642589 (OS grid reference) · View on Apple Maps WFD catchment Lower Barle (GB108045015100) 2024 spills / hours 40 / 298 Long-term average 60.6 spills a year (monitored since 2018) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 179 hours spilling →	River Barle	23	179	down 43%	100%
Shute WwTW Inlet overflow at sewage works Sewage works Shute Company site name SHUTE STW_SO_SHUTE EA ID / permit SBB01087 · 203276 Outlet location SS89540008 (OS grid reference) · View on Apple Maps WFD catchment Jackmoor Brook (GB108045009080) 2024 spills / hours 44 / 174 Long-term average 36.0 spills a year (monitored since 2022) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 175 hours spilling →	Trib of River Creedy	43	175	down 2%	100%
Stonepark Crescent Overflow on sewer network Company site name STONEPARK CRESCENT_CSO_ASHBURTON EA ID / permit SBB01186 · 202969 Outlet location SX75346935 (OS grid reference) · View on Apple Maps WFD catchment Ashburn (GB108046005270) 2024 spills / hours 63 / 177 Long-term average 52.2 spills a year (monitored since 2019) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation UWWTR investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 175 hours spilling →	River Ashburn via SWS	39	175	down 38%	100%
Burlescombe WwTW Storm tank at sewage works Sewage works Burlescombe Company site name BURLESCOMBE STW_SSO_BURLESCOMBE EA ID / permit SBB00191 · NRA-SW-3474 Outlet location ST06531698 (OS grid reference) · View on Apple Maps WFD catchment Spratford Stream (GB108045015020) 2024 spills / hours 59 / 683 Long-term average 39.2 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 172 hours spilling →	Fenacre Water	20	172	down 66%	100%
Dawlish Warren Road PS Storm discharge at pumping station Company site name WARREN ROAD SPS_PSCSOEO_DAWLISH EA ID / permit SBB00355 · 202631 Outlet location SX97617892 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Exe Estuary 2024 spills / hours 76 / 137 Long-term average 47.1 spills a year (monitored since 2010) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Env Act (SODRP) investigation ongoing, Operational investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 171 hours spilling →	Shutterton Brook(S)	39	171	down 49%	100%
Arnolds Point Pumping Station Storm discharge at pumping station Company site name ARNOLDS POINT SPS_PSCSOEO_PLYMOUTH EA ID / permit SBB00050 · 301988 Outlet location SX50395533 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 26 / 243 Long-term average 14.2 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 171 hours spilling →	River Plym via SWS (Estuarine)	17	171	down 35%	100%
Clearbrook STW Storm tank at sewage works Sewage works Clearbrook Company site name CLEARBROOK STW_SSO_CLEARBROOK EA ID / permit SBB00272 · NRA-SW-3027 Outlet location SX52556547 (OS grid reference) · View on Apple Maps WFD catchment Meavy (GB108047003660) 2024 spills / hours 2 / 2.3 Long-term average 31.0 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 171 hours spilling →	(S) Trib of River Meavy	26	171	up 1200%	99%
Love Lane Combined Sewer Overflow Overflow on sewer network Company site name LOVE LN_CSO_MARLDON EA ID / permit SBB00707 · 201758 Outlet location SX86766361 (OS grid reference) · View on Apple Maps WFD catchment Aller Brook (GB108046005340) Shellfish water Teign Estuary 2024 spills / hours 0 / 0.0 Long-term average 7.9 spills a year (monitored since 2018) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 169 hours spilling →	Trib of Aller Brook	63	169	up from 0	100%
Smith Street CSO Overflow on sewer network Company site name SMITH ST_CSO_DARTMOUTH EA ID / permit SBB01095 · 202400 Outlet location SX87935124 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Warfleet Creek, Dart Estuary Shellfish water Dart 2024 spills / hours 94 / 203 Long-term average 96.5 spills a year (monitored since 2019) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation UWWTR investigation ongoing, Operational investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 162 hours spilling →	River Dart via SWS (Estuarine)	85	162	down 10%	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.