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
Lyme Regis (Uplyme) STW Storm tank at sewage works Sewage works Lyme Regis Company site name UPLYME STW_SSO_UPLYME EA ID / permit SBB00726 · 3269 Outlet location SY33389329 (OS grid reference) · View on Apple Maps WFD catchment Lim (GB108044009760) Bathing water Lyme Regis Church Cliff Beach 2024 spills / hours 68 / 441 Long-term average 47.5 spills a year High-spill reason (company) Performance - SW Infiltration Investigation UWWTR investigation completed, Operational investigation ongoing Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 382 hours spilling →	Tributary of the River Lim	54	382	down 21%	100%
Plymtree STW Storm tank at sewage works Sewage works Plymtree Company site name PLYMTREE STW_SSO_PLYMTREE EA ID / permit SBB00948 · NRA-SW-3744 Outlet location ST04060396 (OS grid reference) · View on Apple Maps WFD catchment Upper Clyst (GB108045008860) 2024 spills / hours 72 / 787 Long-term average 35.2 spills a year (monitored since 2019) High-spill reason (company) Performance - SW Infiltration Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 379 hours spilling →	River Weaver	38	379	down 47%	100%
Chudleigh WwTW Inlet overflow at sewage works Sewage works Chudleigh Company site name CHUDLEIGH STW_SO_NEWTON ABBOT EA ID / permit SBB00254 · NRA-SW-6984 Outlet location SX86147937 (OS grid reference) · View on Apple Maps WFD catchment Teign (Lower) (GB108046008540) Shellfish water Teign Estuary 2024 spills / hours 106 / 360 Long-term average 73.9 spills a year (monitored since 2016) High-spill reason (company) Performance - SW Infiltration Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 379 hours spilling →	River Teign	90	379	down 15%	100%
Puddington STW Inlet overflow at sewage works Sewage works Puddington Company site name PUDDINGTON STW_SO_PUDDINGTON EA ID / permit SBB00991 · SWWA 981 Outlet location SS83601073 (OS grid reference) · View on Apple Maps WFD catchment Upper Creedy (GB108045014910) 2024 spills / hours 103 / 873 Long-term average 77.5 spills a year (monitored since 2022) High-spill reason (company) Performance - SW Infiltration Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 378 hours spilling →	River Creedy	70	378	down 32%	100%
Broadwindsor WwTW Storm tank at sewage works Sewage works Broadwindsor Company site name BROADWINDSOR STW_SSO_BROADWINDSOR EA ID / permit SBB00168 · NRA-SW-4946 Outlet location ST43280325 (OS grid reference) · View on Apple Maps WFD catchment Upper Axe (GB108045014840) 2024 spills / hours 63 / 824 Long-term average 50.8 spills a year (monitored since 2019) High-spill reason (company) Performance - SW Infiltration Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 377 hours spilling →	Tributary of Drimpton Stream	40	377	down 37%	100%
Doddiscombsleigh STW Inlet overflow at sewage works Sewage works Doddiscombsleigh Company site name DODDISCOMBSLEIGH STW_SO_TEIGN VALLEY EA ID / permit SBB00372 · 203009 Outlet location SX85308697 (OS grid reference) · View on Apple Maps WFD catchment Teign (Lower) (GB108046008540) 2024 spills / hours 61 / 323 Long-term average 54.5 spills a year (monitored since 2021) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 365 hours spilling →	Doddiscombsleigh Stream(S)	49	365	down 20%	97%
Minions STW Inlet overflow at sewage works Sewage works Minions Company site name MINIONS STW_SO_MINIONS EA ID / permit SBB00791 · 302132 Outlet location SX26117060 (OS grid reference) · View on Apple Maps WFD catchment Seaton (GB108048002320) 2024 spills / hours 163 / 1,743 Long-term average 136.8 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 362 hours spilling →	Trib of River Seaton (S)	105	362	down 36%	100%
The Old Orchard CSO Overflow on sewer network Company site name MAIN ST/TOWN ORCHARD_CSO_ABBOTSKERSWELL EA ID / permit SBB01233 · 201814 Outlet location SX85666878 (OS grid reference) · View on Apple Maps WFD catchment Aller Brook (GB108046005340) Shellfish water Teign Estuary 2024 spills / hours 80 / 295 Long-term average 60.6 spills a year (monitored since 2017) 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 360 hours spilling →	Trib of Aller Brook	82	360	up 3%	100%
Lee Mill Pumping Station Storm discharge at pumping station Company site name LEE MILL SPS_PSCSOEO_PLYMOUTH EA ID / permit SBB00677 · 301626 Outlet location SX59945568 (OS grid reference) · View on Apple Maps WFD catchment Lower River Yealm (GB108047004010) 2024 spills / hours 70 / 775 Long-term average 46.7 spills a year (monitored since 2016) 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 360 hours spilling →	River Yealm	36	360	down 49%	100%
Cawsand South Pumping Station Storm discharge at pumping station Company site name THE SQUARE CAWSAND_PSCSOEO_CAWSAND EA ID / permit SBB00220 · 301904 Outlet location SX43425016 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Cawsand 2024 spills / hours 53 / 887 Long-term average 32.0 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 355 hours spilling →	Cawsand Bay Estaurine via SWS	29	355	down 45%	100%
Yeolmbridge PS Storm discharge at pumping station Company site name YEOLMBRIDGE SPST_PSCSOEO_YEOLMBRIDGE EA ID / permit SBB01392 · 301651 Outlet location SX31658740 (OS grid reference) · View on Apple Maps WFD catchment Lower River Ottery (GB108047007981) 2024 spills / hours 86 / 213 Long-term average 81.2 spills a year (monitored since 2020) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 354 hours spilling →	Trib of River Ottery	96	354	up 12%	100%
Chudleigh Knighton WwTW Storm tank at sewage works Sewage works Chudleigh Knighton Company site name CHUDLEIGH KNIGHTON STW_SSO_CHUDLEIGH K EA ID / permit SBB00253 · 203388 Outlet location SX84657716 (OS grid reference) · View on Apple Maps WFD catchment Teign (Lower) (GB108046008540) Shellfish water Teign Estuary 2024 spills / hours 15 / 139 Long-term average 31.5 spills a year (monitored since 2017) Investigation UWWTR investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 352 hours spilling →	River Teign	30	352	up 100%	100%
Winkleigh Wastewater Treatment Wrks Storm tank at sewage works Sewage works Winkleigh Wastewater Treatment Wrks Company site name WINKLEIGH STW_SSO_WINKLEIGH EA ID / permit SBB01367 · 203662 Outlet location SS63780726 (OS grid reference) · View on Apple Maps WFD catchment Bullow Brook (GB108050014170) 2024 spills / hours 72 / 1,144 Long-term average 69.3 spills a year (monitored since 2021) High-spill reason (company) Performance - SW Infiltration Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 352 hours spilling →	Bullow Brook(S)	33	352	down 54%	100%
CSO in High Street Overflow on sewer network Company site name HIGH ST_CSO_FALMOUTH EA ID / permit SBB00340 · 303014 Outlet location SW80833302 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Fal Estuary 2024 spills / hours 92 / 251 Long-term average 27.1 spills a year High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 352 hours spilling →	Penryn River(E)	101	352	up 10%	100%
Pennymoor Sewage Treatment Works Inlet overflow at sewage works Sewage works Pennymoor Company site name PENNYMOOR STW_SO_TIVERTON EA ID / permit SBB00925 · 203846 Outlet location SS86451163 (OS grid reference) · View on Apple Maps WFD catchment Upper Creedy (GB108045014910) 2024 spills / hours 77 / 552 Long-term average 54.5 spills a year (monitored since 2022) High-spill reason (company) Performance - SW Infiltration 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 347 hours spilling →	A Tributary of Binneford Water	44	347	down 43%	85%
Dobles Lane Pscso/EO Storm discharge at pumping station Company site name DOBLES LANE SPS_PSCSOEO_HOLSWORTHY EA ID / permit SBB00367 · 302098 Outlet location SS34300472 (OS grid reference) · View on Apple Maps WFD catchment Deer (GB108047013880) 2024 spills / hours 39 / 196 Long-term average 44.0 spills a year (monitored since 2022) High-spill reason (company) Performance - SW Infiltration Investigation UWWTR investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 344 hours spilling →	Trib River Deer (S)	38	344	down 3%	100%
Pack O Cards Overflow on sewer network Company site name PACK OF CARDS_CSO_COMBE MARTIN EA ID / permit SBB00897 · 2676 Outlet location SS58334667 (OS grid reference) · View on Apple Maps WFD catchment Umber (GB108051020440) Bathing water Combe Martin 2024 spills / hours 25 / 380 Long-term average 44.3 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 344 hours spilling →	River Umber (S)	19	344	down 24%	100%
Peterville Pumping Station Storm discharge at pumping station Company site name PETERVILLE SPST_PSCSOEO_ST AGNES EA ID / permit SBB00931 · 303458 Outlet location SW72145091 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Trevaunance Cove 2024 spills / hours 50 / 384 Long-term average 36.2 spills a year (monitored since 2010) 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 342 hours spilling →	Trevaunance Stream(S)	45	342	down 10%	100%
Helston WwTW Storm tank at sewage works Sewage works Helston Company site name HELSTON STW_SSO_HELSTON EA ID / permit SBB00563 · 302822 Outlet location SW65302683 (OS grid reference) · View on Apple Maps WFD catchment Lower River Cober (GB108048001172) 2024 spills / hours 52 / 567 Long-term average 28.1 spills a year (monitored since 2017) High-spill reason (company) Performance - SW Infiltration Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 340 hours spilling →	River Cober	32	340	down 38%	97%
Dockyard No.3 Pumping Station Storm discharge at pumping station Company site name DOCKYARD No3 SPS_PSCSOEO_PLYMOUTH EA ID / permit SBB00371 · 301993 Outlet location SX44685420 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 52 / 339 Long-term average 102.9 spills a year (monitored since 2016) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation UWWTR investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 338 hours spilling →	River Tamar (Estuarine)	43	338	down 17%	100%
Carnon Downs WwTW Inlet overflow at sewage works Sewage works Carnon Downs Company site name CARNON DOWNS STW_SO_CARNON DOWNS EA ID / permit SBB00211 · NRA-SW-7825 Outlet location SW78684000 (OS grid reference) · View on Apple Maps WFD catchment Lower River Carnon (GB108048001231) Shellfish water Fal Estuary 2024 spills / hours 8 / 100 Long-term average 160.2 spills a year (monitored since 2016) Investigation UWWTR investigation ongoing Improvement UWWTR improvement completed Volume & pollution Estimate from 338 hours spilling →	Carnon River	21	338	up 163%	99%
Chagford Wastewater Treatment Works Storm tank at sewage works Sewage works Chagford Company site name CHAGFORD MAIN STW_SSO_CHAGFORD EA ID / permit SBB00227 · SWWA 1137 Outlet location SX70078817 (OS grid reference) · View on Apple Maps WFD catchment Teign (Upper) (GB108046008550) 2024 spills / hours 36 / 269 Long-term average 52.8 spills a year (monitored since 2017) High-spill reason (company) Performance - SW Infiltration Investigation UWWTR investigation ongoing, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 336 hours spilling →	River Teign	40	336	up 11%	100%
Stoke Gabriel Pscso/EO Storm discharge at pumping station Company site name STOKE GABRIEL SPS_PSCSOEO_TOTNES EA ID / permit SBB01178 · 202852 Outlet location SX84785691 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Stoke Gabriel, Dart Estuary Shellfish water Dart 2024 spills / hours 55 / 774 Long-term average 22.9 spills a year Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 334 hours spilling →	River Dart Estuary(E)	20	334	down 64%	100%
Bolitho Road CSO Overflow on sewer network Company site name BOLITHO RD_CSO_PENZANCE EA ID / permit SBB00129 · NRA-SW-6340 Outlet location SW46373147 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Long Rock 2024 spills / hours 96 / 285 Long-term average 94.3 spills a year (monitored since 2010) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation completed Improvement Env Act (SODRP) improvement ongoing, UWWTR improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 329 hours spilling →	Surface Water Drain to Chyandr	106	329	up 10%	99%
Phear Park Pseo/CSO Storm discharge at pumping station Company site name PHEAR PARK SPST_PSCSOEO_EXMOUTH EA ID / permit SBB00934 · 200124/PC/01 Outlet location SX99968146 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Exmouth Shellfish water Exe Estuary 2024 spills / hours 51 / 625 Long-term average 19.9 spills a year High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 326 hours spilling →	Exe Estuary	35	326	down 31%	100%
East Portlemouth WwTW Storm discharge at pumping station Company site name DITCH END S T_PSCSOEO_EAST PORTLEMOUTH EA ID / permit SBB00394 · 203866 Outlet location SX74613890 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 50 / 679 Long-term average 32.2 spills a year (monitored since 2016) Investigation Operational investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 325 hours spilling →	Salcombe Estuary (Estuarine)	29	325	down 42%	100%
Stoke Fleming Pumping Station Storm discharge at pumping station Company site name SHADY LANE SPS_PSCSOEO_STOKE FLEMING EA ID / permit SBB01177 · 203363 Outlet location SX86384835 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 96 / 1,474 Long-term average 68.8 spills a year (monitored since 2016) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 325 hours spilling →	Leonards Cove Stream	36	325	down 63%	100%
Camelford WwTW Inlet overflow at sewage works Sewage works Camelford Company site name CAMELFORD STW_SO_CAMELFORD EA ID / permit SBB00204 · 15/49/281/P/16 Outlet location SX10618334 (OS grid reference) · View on Apple Maps WFD catchment Upper River Camel (GB108049007060) 2024 spills / hours 46 / 441 Long-term average 30.6 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 No improvement action in reporting period Volume & pollution Estimate from 323 hours spilling →	River Camel	45	323	down 2%	100%
Holsworthy (Derriton) STW Inlet overflow at sewage works Sewage works Holsworthy Company site name DERRITON STW_SO_HOLSWORTHY EA ID / permit SBB00582 · NRA-SW-6975 Outlet location SS34020322 (OS grid reference) · View on Apple Maps WFD catchment Deer (GB108047013880) 2024 spills / hours 92 / 484 Long-term average 79.0 spills a year (monitored since 2018) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation completed, Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 322 hours spilling →	Coles Stream (S)	77	322	down 16%	99%
East Budleigh Pumping Station Storm discharge at pumping station Company site name EAST BUDLEIGH SPS_PSCSO_EAST BUDLEIGH EA ID / permit SBB00390 · 201671 Outlet location SY07748419 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 99 / 98 Long-term average 53.4 spills a year (monitored since 2017) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 321 hours spilling →	River Otter	80	321	down 19%	100%
Exbourne STW Inlet overflow at sewage works Sewage works Exbourne Company site name EXBOURNE STW_SO_OKEHAMPTON EA ID / permit SBB00423 · 200365/SF/01 Outlet location SS60630198 (OS grid reference) · View on Apple Maps WFD catchment Hole Brook (GB108050014090) 2024 spills / hours 89 / 598 Long-term average 76.6 spills a year (monitored since 2021) High-spill reason (company) Performance - SW Infiltration Monitor below 90% Comms failure / issue · Resolved - January after reporting year Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 319 hours spilling →	(S)Trib. of Hole Brook	84	319	down 6%	89%
Stokeinteignhead Pumping Station Storm discharge at pumping station Company site name STOKEINTEIGNHEAD SPS_PSCSOEO_N ABBOT EA ID / permit SBB01183 · 203091 Outlet location SX91407076 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Teign Estuary 2024 spills / hours 81 / 635 Long-term average 30.0 spills a year (monitored since 2013) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 313 hours spilling →	The Arch Brook (S)	19	313	down 77%	100%
Tedburn St Mary STW Storm tank at sewage works Sewage works Tedburn St Mary Company site name TEDBURN ST MARY STW_SSO_TEDBURN ST MARY EA ID / permit SBB01213 · 203478 Outlet location SX82489395 (OS grid reference) · View on Apple Maps WFD catchment Culvery River (GB108045009220) 2024 spills / hours 66 / 788 Long-term average 37.3 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 313 hours spilling →	Lilly Brook(S)	31	313	down 53%	100%
St Buryan WwTW Storm tank at sewage works Sewage works St Buryan Company site name ST BURYAN STW_SSO_ST BURYAN EA ID / permit SBB01123 · 15/48/24/P/4 Outlet location SW40772520 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 25 / 161 Long-term average 44.8 spills a year (monitored since 2020) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 312 hours spilling →	Trevedran Stream	36	312	up 44%	100%
Mosterton Pumping Station Storm discharge at pumping station Company site name MOSTERTON SPS_PSCSOEO_MOSTERTON EA ID / permit SBB00810 · 201546 Outlet location ST45750527 (OS grid reference) · View on Apple Maps WFD catchment Upper Axe (GB108045014840) 2024 spills / hours 73 / 263 Long-term average 81.5 spills a year (monitored since 2017) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 312 hours spilling →	River Axe	72	312	down 1%	100%
Willand Wastewater Treatment Works Inlet overflow at sewage works Sewage works Willand Company site name WILLAND STW_SO_WILLAND EA ID / permit SBB01362 · 203113 Outlet location ST04191060 (OS grid reference) · View on Apple Maps WFD catchment Spratford Stream (GB108045015020) 2024 spills / hours 69 / 520 Long-term average 64.6 spills a year (monitored since 2018) 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 311 hours spilling →	Trib of River Culm	54	311	down 22%	100%
The Butts PS Storm discharge at pumping station Company site name BUTTS SPST_PSCSOEO_KINGSTEIGNTON EA ID / permit SBB01222 · 203343 Outlet location SX87147257 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Teign Estuary 2024 spills / hours 62 / 478 Long-term average 36.3 spills a year (monitored since 2010) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 310 hours spilling →	Trib of River Teign(S)	36	310	down 42%	100%
Tatworth WwTW Inlet overflow at sewage works Sewage works Tatworth Company site name TATWORTH STW_SO_TATWORTH EA ID / permit SBB01208 · 203249 Outlet location ST33680481 (OS grid reference) · View on Apple Maps WFD catchment Forton Brook (GB108045014820) 2024 spills / hours 64 / 394 Long-term average 55.4 spills a year (monitored since 2018) 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 310 hours spilling →	Forton Brook	54	310	down 16%	100%
Teign Village WwTW Inlet overflow at sewage works Sewage works Teign Village Company site name TEIGN VILLAGE STW_SO_TEIGN VALLEY EA ID / permit SBB01215 · NRA-SW-6737 Outlet location SX84818118 (OS grid reference) · View on Apple Maps WFD catchment Teign (Lower) (GB108046008540) Shellfish water Teign Estuary 2024 spills / hours 33 / 99 Long-term average 71.5 spills a year (monitored since 2017) 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 306 hours spilling →	River Teign	32	306	down 3%	98%
Downderry Storm discharge at pumping station Company site name DOWNDERRY SPST_PSCSOEO_DOWNDERRY EA ID / permit SBB00374 · 037807/PC/01 Outlet location SX32035370 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Downderry 2024 spills / hours 15 / 60 Long-term average 19.6 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 305 hours spilling →	English Channel	27	305	up 80%	99%
Hatt Wastewater Treatment Works Storm tank at sewage works Sewage works Hatt Company site name HATT STW_SSO_HATT EA ID / permit SBB00547 · NRA-SW-0007 Outlet location SX38386153 (OS grid reference) · View on Apple Maps WFD catchment Lower River Lynher (GB108047007670) 2024 spills / hours 16 / 171 Long-term average 44.1 spills a year (monitored since 2018) Monitor below 90% Sensor failure / issue · Resolved - Aug Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 304 hours spilling →	River Lynher	24	304	up 50%	90%
Holcombe Pumping Station Storm discharge at pumping station Company site name TEIGNMOUTH ROAD_PSCSOEO_HOLCOMBE EA ID / permit SBB00577 · 202110 Outlet location SX96087534 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Dawlish Coryton Cove 2024 spills / hours 28 / 86 Long-term average 31.1 spills a year (monitored since 2011) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 303 hours spilling →	Shell Cove, Lyme Bay(C)	33	303	up 18%	100%
Woolfardisworthy STW Storm tank at sewage works Sewage works Woolfardisworthy Company site name WOOLSERY STW_SSO_WOOLFARDISWORTHY EA ID / permit SBB01377 · NRA-SW-0272 Outlet location SS34022093 (OS grid reference) · View on Apple Maps WFD catchment Dipple Water (GB108050014370) 2024 spills / hours 85 / 1,149 Long-term average 73.8 spills a year (monitored since 2021) Investigation UWWTR investigation completed, Operational investigation ongoing Improvement UWWTR improvement completed Volume & pollution Estimate from 301 hours spilling →	(S) Trib Cranford Water	23	301	down 73%	93%
Chapel Lane CSO Overflow on sewer network Company site name CHAPEL LN_CSO_HORRABRIDGE EA ID / permit SBB00232 · 301847 Outlet location SX51316992 (OS grid reference) · View on Apple Maps WFD catchment Walkham (GB108047007870) 2024 spills / hours 46 / 246 Long-term average 31.5 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 300 hours spilling →	River Walkham (S)	41	300	down 11%	100%
Parsonage Cottage Hill CSO Overflow on sewer network Company site name TOWN HILL_CSO_ERMINGTON EA ID / permit SBB00911 · 201874 Outlet location SX63775276 (OS grid reference) · View on Apple Maps WFD catchment Lower Erme (GB108046005040) Bathing water Mothecombe; Coastguards Beach, Erme Estuary 2024 spills / hours 49 / 263 Long-term average 22.9 spills a year (monitored since 2014) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 297 hours spilling →	River Erme	27	297	down 45%	100%
Tredrizzick Bridge Pumping Station Storm discharge at pumping station Company site name TREDRIZZICK SPS_PSCSOEO_TREDRIZZICK EA ID / permit SBB01275 · 34546 Outlet location SW95887703 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Polzeath 2024 spills / hours 41 / 342 Long-term average 25.0 spills a year (monitored since 2011) 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 296 hours spilling →	(S) Polzeath Stream	33	296	down 20%	100%
Treknow STW Storm tank at sewage works Sewage works Treknow Company site name TREKNOW STW_SSO_TREBARWITH EA ID / permit SBB01280 · CRA 1 Outlet location SX05488648 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Trebarwith Strand 2024 spills / hours 8 / 84 Long-term average 3.8 spills a year (monitored since 2011) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 296 hours spilling →	(S) Trebarwith Stream	17	296	up 113%	100%
Staverton WwTW Storm tank at sewage works Sewage works Staverton Company site name STAVERTON STW_SSO_STAVERTON EA ID / permit SBB01166 · NRA-SW-0257 Outlet location SX79626362 (OS grid reference) · View on Apple Maps WFD catchment Dart (GB108046008350) Bathing water Steamer Quay, Dart Estuary 2024 spills / hours 34 / 365 Long-term average 21.7 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 295 hours spilling →	River Dart	24	295	down 29%	96%
St Germans WwTW Inlet overflow at sewage works Sewage works St Germans Company site name ST GERMANS STW_SO_ST GERMANS EA ID / permit SBB01134 · 303084 Outlet location SX35975710 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 37 / 373 Long-term average 44.4 spills a year (monitored since 2017) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 295 hours spilling →	Polbathic Lake (Estuarine)	27	295	down 27%	100%
Stoke Canon Pseo Storm discharge at pumping station Company site name STOKE CANON SPST_PSCSOEO_STOKE CANON EA ID / permit SBB01175 · 201510 Outlet location SX93709756 (OS grid reference) · View on Apple Maps WFD catchment Lower Culm (GB108045014970) 2024 spills / hours 0 / 0.0 Long-term average 8.5 spills a year (monitored since 2022) High-spill reason (company) Not Applicable - Ongoing investigation Monitor below 90% Installation set-up/design issue · Resolved - May Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 294 hours spilling →	R Culm (S)	34	294	up from 0	59%

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.