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
New Polzeath Pumping Station Storm discharge at pumping station Company site name NEW POLZEATH SPS_PSCSOEO_POLZEATH EA ID / permit SBB00831 · 34547 Outlet location SW93467957 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Polzeath 2024 spills / hours 3 / 22 Long-term average 2.2 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 33 hours spilling →	(E) Polzeath Bay	6	33	up 100%	100%
Rowing Club NO2 CSO Overflow on sewer network Company site name ROWING CLUB NO2_CSO_TORPOINT EA ID / permit SBB01041 · 301642 Outlet location SX44185499 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 38 / 68 Long-term average 36.4 spills a year (monitored since 2017) Investigation UWWTR investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 33 hours spilling →	River Tamar (Estuarine)	30	33	down 21%	100%
St John STW Inlet overflow at sewage works Sewage works St John Company site name ST JOHN S T SEPTNK_SO_ST JOHN EA ID / permit SBB01137 · 302135 Outlet location SX40965376 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 16 / 8.8 Long-term average 16.2 spills a year (monitored since 2019) High-spill reason (company) Not Applicable - Ongoing investigation Investigation Operational investigation completed Improvement Operational improvement ongoing Volume & pollution Estimate from 33 hours spilling →	St Johns Leat (E)	42	33	up 163%	98%
Marldon (Churscombe Cross) PS Storm discharge at pumping station Company site name CHURSCOMBE CROSS SPS_PSCSOEO_MARLDON EA ID / permit SBB00750 · 201586 Outlet location SX87126258 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Paignton Preston Sands 2024 spills / hours 29 / 62 Long-term average 20.5 spills a year (monitored since 2011) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 32 hours spilling →	Kirkham Stream	20	32	down 31%	100%
Oakford STW Inlet overflow at sewage works Sewage works Oakford Company site name OAKFORD STW_SO_OAKFORD EA ID / permit SBB00862 · 202204/CS/01 Outlet location SS91152142 (OS grid reference) · View on Apple Maps WFD catchment Iron Mill Stream (GB108045015040) 2024 spills / hours 11 / 41 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 32 hours spilling →	Trib of Iron Mill Stream (S)	11	32	no change	100%
Station Car Park CSO Overflow on sewer network Company site name RAILWAY STATION CAR PARK_CSO_TEIGNMOUTH EA ID / permit SBB01161 · 203349 Outlet location SX94567320 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Teignmouth Town 2024 spills / hours 6 / 19 Long-term average 5.8 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 32 hours spilling →	Lyme Bay (via Surf Wtr Sewer)	15	32	up 150%	100%
Trelander Highway CSO Overflow on sewer network Company site name TRELANDER HIGHWAY_CSO_TRURO EA ID / permit SBB01282 · 302681 Outlet location SW82924479 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Fal Estuary 2024 spills / hours 31 / 16 Long-term average 37.5 spills a year High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 32 hours spilling →	River Allen(Estuarine) via SWS	46	32	up 48%	100%
Tredinnick STW Inlet overflow at sewage works Sewage works Tredinnick Company site name TREDINNICK STW_SO_TREDINNICK EA ID / permit SBB01274 · 302138 Outlet location SX23525734 (OS grid reference) · View on Apple Maps WFD catchment West Looe River (GB108048002000) 2024 spills / hours 36 / 112 Long-term average 25.8 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 32 hours spilling →	Un-Named Watercourse (S)	23	32	down 36%	99%
178 Beaumont Road CSO Overflow on sewer network Company site name 178 BEAUMONT ROAD_CSO_PLYMOUTH EA ID / permit SBB00011 · 301789 Outlet location SX50155478 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 47 / 29 Long-term average 48.1 spills a year (monitored since 2018) 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 32 hours spilling →	River Plym via SWS (Estuarine)	51	32	up 9%	99%
Batson Green Pumping Station Storm discharge at pumping station Company site name BATSON SPS_PSCSOEO_SALCOMBE EA ID / permit SBB00080 · NRA-SW-7652/PC/1 Outlet location SX73503971 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 24 / 54 Long-term average 27.6 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 31 hours spilling →	Baston Creek (Estuarine)	17	31	down 29%	100%
Mevagissey PS Storm discharge at pumping station Company site name MEVAGISSEY SPST_PSCSOEO_MEVAGISSEY EA ID / permit SBB00766 · 300238/PC/01 Outlet location SX01804494 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Polstreath 2024 spills / hours 20 / 12 Long-term average 100.8 spills a year (monitored since 2010) Investigation UWWTR investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 31 hours spilling →	Mevagissey Bay	22	31	up 10%	100%
Trefius Park Combined Sewer Overflo Overflow on sewer network Company site name TREFUSIS PARK_CSO_PLYMOUTH EA ID / permit SBB01276 · 301709 Outlet location SX49385585 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Plymouth Hoe East 2024 spills / hours 51 / 29 Long-term average 50.0 spills a year (monitored since 2018) High-spill reason (company) Not Applicable - Ongoing investigation Monitor below 90% Comms failure / issue · Not Applicable - Ongoing investigation Investigation UWWTR investigation ongoing, Operational investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 31 hours spilling →	Tributary of the River Plym	42	31	down 18%	87%
Oreston Quay (No 2) Pumping Station Storm discharge at pumping station Company site name ORESTON QUAY SPST_PSCSOEO_PLYMOUTH EA ID / permit SBB00889 · 032898/PC/01 Outlet location SX50005351 (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 28 / 76 Long-term average 44.1 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 31 hours spilling →	River Plym Estuary (Estuarine)	15	31	down 46%	100%
Edward Street CSO Overflow on sewer network Company site name EDWARD ST_CSO_TRURO EA ID / permit SBB00405 · 302677 Outlet location SW82274491 (OS grid reference) · View on Apple Maps WFD catchment Kenwyn (GB108048002340) Shellfish water Fal Estuary 2024 spills / hours 3 / 4.8 Long-term average 12.1 spills a year (monitored since 2010) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Env Act (SODRP) investigation ongoing, Operational investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 31 hours spilling →	River Kenwyn(S)	57	31	up 1800%	98%
Oaklands CSO Overflow on sewer network Company site name OAKLANDS_CSO_PETROCKSTOWE EA ID / permit SBB00864 · 201944 Outlet location SS51300983 (OS grid reference) · View on Apple Maps WFD catchment Little Mere River (GB108050014190) 2024 spills / hours 7 / 75 Long-term average 5.8 spills a year (monitored since 2022) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 31 hours spilling →	Trib of Little Mere River (S)	6	31	down 14%	100%
Church Road CSO Overflow on sewer network Company site name CHURCH ROAD_CSO_ALPHINGTON EA ID / permit SBB00261 · 201933 Outlet location SX91769027 (OS grid reference) · View on Apple Maps WFD catchment Alphin Brook (GB108045009020) Shellfish water Exe Estuary 2024 spills / hours 30 / 51 Long-term average 28.6 spills a year (monitored since 2018) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 31 hours spilling →	Alphin Brook	24	31	down 20%	100%
Torquay Road CSO Overflow on sewer network Company site name FORDE PARK_CSO_NEWTON ABBOT EA ID / permit SBB01258 · 203344 Outlet location SX87037069 (OS grid reference) · View on Apple Maps WFD catchment Aller Brook (Teign) - Lower (GB108046005350) Shellfish water Teign Estuary 2024 spills / hours 28 / 20 Long-term average 19.1 spills a year (monitored since 2010) 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 30 hours spilling →	Aller Brook (S)	32	30	up 14%	97%
St Mabyn WwTW Inlet overflow at sewage works Sewage works St Mabyn Company site name ST MABYN STW_SO_ST MABYN EA ID / permit SBB01146 · NRA-SW-0414 Outlet location SX04227540 (OS grid reference) · View on Apple Maps WFD catchment Allen (GB108049007050) 2024 spills / hours 17 / 291 Long-term average 8.8 spills a year (monitored since 2017) Investigation Env Act (SODRP) investigation ongoing Improvement No improvement action in reporting period Volume & pollution Estimate from 30 hours spilling →	River Allen	7	30	down 59%	99%
Fleet Walk No.1 CSO Overflow on sewer network Company site name FLEET WALK 1_CSO_TORQUAY EA ID / permit SBB00456 · 200224 Outlet location SX91656341 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Beacon Cove 2024 spills / hours 24 / 39 Long-term average 17.9 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 30 hours spilling →	Torquay Harbour	19	30	down 21%	100%
Manor Hill Combined Sewer Overflow Overflow on sewer network Company site name MANOR HALL_CSO_HATHERLEIGH EA ID / permit SBB00742 · 201771 Outlet location SS54020427 (OS grid reference) · View on Apple Maps WFD catchment Lower River Lew (Torridge) (GB108050008220) 2024 spills / hours 81 / 211 Long-term average 69.0 spills a year (monitored since 2019) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation ongoing Improvement Env Act (SODRP) improvement ongoing, UWWTR improvement ongoing Volume & pollution Estimate from 30 hours spilling →	River Lew	46	30	down 43%	99%
Queen and Railway Inn CSO Overflow on sewer network Company site name ST COLUMB RD_CSO_ST COLUMB EA ID / permit SBB00998 · 301877 Outlet location SW90905927 (OS grid reference) · View on Apple Maps WFD catchment Gannel (Upper) (GB108049000230) 2024 spills / hours 54 / 42 Long-term average 38.5 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 30 hours spilling →	Trib of River Gannel	61	30	up 13%	100%
Ermington STW Inlet overflow at sewage works Sewage works Ermington Company site name ERMINGTON STW_SO_ERMINGTON EA ID / permit SBB00416 · NRA-SW-1188 Outlet location SX63395237 (OS grid reference) · View on Apple Maps WFD catchment Lower Erme (GB108046005040) Bathing water Mothecombe; Coastguards Beach, Erme Estuary 2024 spills / hours 5 / 14 Long-term average 5.2 spills a year (monitored since 2015) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 30 hours spilling →	River Erme	9	30	up 80%	100%
121A St. Katherines Road CSO Overflow on sewer network Company site name 121a ST KATHERINES RD_CSO_EXETER EA ID / permit SBB00006 · 201904 Outlet location SX94199387 (OS grid reference) · View on Apple Maps WFD catchment North Brook (East Devon) (GB108045009050) Shellfish water Exe Estuary 2024 spills / hours 12 / 37 Long-term average 10.3 spills a year (monitored since 2017) Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation completed Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 30 hours spilling →	Mincinglake Stream	11	30	down 8%	100%
Quilletts CSO Overflow on sewer network Company site name SHUTE PARK_CSO_MALBOROUGH EA ID / permit SBB01004 · NRA-SW-7653/CS/1 Outlet location SX70793949 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Salcombe South Sands 2024 spills / hours 33 / 16 Long-term average 40.9 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 30 hours spilling →	Tributary of Combe Stream	47	30	up 42%	100%
Chagford Fire 1 CSO Overflow on sewer network Company site name CHAGFORD FIRE 1_CSO_CHAGFORD EA ID / permit SBB00225 · 201798 Outlet location SX70478785 (OS grid reference) · View on Apple Maps WFD catchment Teign (Upper) (GB108046008550) 2024 spills / hours 42 / 28 Long-term average 28.7 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 30 hours spilling →	Trib of River Teign	43	30	up 2%	100%
Dawlish Breakwater SSO Storm discharge at pumping station Company site name VIADUCT SPS_PSCSOEO_DAWLISH EA ID / permit SBB00353 · 200824 Outlet location SX96487651 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Dawlish Town 2024 spills / hours 31 / 43 Long-term average 21.2 spills a year (monitored since 2010) High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation ongoing Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 30 hours spilling →	Lyme Bay (C)	31	30	no change	100%
St Breward STW Storm tank at sewage works Sewage works St Breward Company site name ST BREWARD STW_SSO_ST BREWARD EA ID / permit SBB01122 · NRA-SW-6746 Outlet location SX09017615 (OS grid reference) · View on Apple Maps WFD catchment Camel (De Lank to Stannon) (GB108049006980) 2024 spills / hours 0 / 0.0 Long-term average 8.2 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 30 hours spilling →	(S) River Camel	41	30	up from 0	100%
Bridgetown WwTW PS Inlet overflow at sewage works Sewage works Bridgetown Ps Company site name BRIDGETOWN STW_PSCSOEO_BRIDGETOWN EA ID / permit SBB00160 · NRA-SW-1069 Outlet location SS92333320 (OS grid reference) · View on Apple Maps WFD catchment Exe (Quarme to Haddeo) (GB108045020890) 2024 spills / hours 28 / 497 Long-term average 9.0 spills a year (monitored since 2021) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	River Exe	4	29	down 86%	98%
Chapel Street CSO Overflow on sewer network Company site name CHAPEL STREET_CSO_AXMOUTH EA ID / permit SBB00233 · 201885 Outlet location SY25819110 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 14 / 34 Long-term average 7.2 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	Trib of River Axe	7	29	down 50%	100%
Ashprington WwTW Storm tank at sewage works Sewage works Ashprington Company site name ASHPRINGTON STW_SSO_ASHPRINGTON EA ID / permit SBB00053 · NRA-SW-3983 Outlet location SX81485636 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Dart 2024 spills / hours 30 / 142 Long-term average 56.7 spills a year (monitored since 2016) Investigation UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 29 hours spilling →	River Harbourne (Estuarine)	19	29	down 37%	97%
Florence Street CSO Overflow on sewer network Company site name FLORENCE STREET_CSO_PLYMOUTH EA ID / permit SBB00458 · 302614 Outlet location SX44695835 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 42 / 17 Long-term average 24.1 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 29 hours spilling →	Weston Mill Lake(S)	59	29	up 40%	100%
St Austell (London Apprentice) PS Storm discharge at pumping station Company site name LONDON APPRENTICE SPST_PSCSOEO_ST AUSTEL EA ID / permit SBB01118 · 303234 Outlet location SX00795010 (OS grid reference) · View on Apple Maps WFD catchment St Austell River (GB108048002280) 2024 spills / hours 7 / 21 Long-term average 9.3 spills a year (monitored since 2022) Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation completed Improvement No improvement action in reporting period Volume & pollution Estimate from 28 hours spilling →	St Austell River(S)	3	28	down 57%	100%
Par NO2 Pumping Station Storm discharge at pumping station Company site name PAR NO2 SPST_PSCSOEO_ST AUSTELL EA ID / permit SBB00901 · 031750/PC/01 Outlet location SX07615336 (OS grid reference) · View on Apple Maps WFD catchment St Austell Coastal (GB620806110001) Bathing water Par Sands Shellfish water St Austell Bay 2024 spills / hours 10 / 25 Long-term average 8.9 spills a year (monitored since 2010) Investigation No investigation activity in reporting period Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 28 hours spilling →	River Par	7	28	down 30%	100%
Gwennap Wastewater Treatment Works Inlet overflow at sewage works Sewage works Gwennap Company site name GWENNAP STW_SO_LANNER ST DAY EA ID / permit SBB00525 · NRA-SW-5475 Outlet location SW74864044 (OS grid reference) · View on Apple Maps WFD catchment Hicks Mill Stream (GB108048001150) 2024 spills / hours 25 / 69 Long-term average 26.2 spills a year (monitored since 2020) Investigation Env Act (SODRP) investigation ongoing, UWWTR investigation completed Improvement UWWTR improvement completed Volume & pollution Estimate from 28 hours spilling →	Hicks Mill Stream	13	28	down 48%	98%
Bonhay Park CSO Overflow on sewer network Company site name BONHAY PARK_CSO_EXETER EA ID / permit SBB00131 · 202095 Outlet location SX91409231 (OS grid reference) · View on Apple Maps WFD catchment Exe (Creedy to Estuary) (GB108045009040) Shellfish water Exe Estuary 2024 spills / hours 9 / 38 Long-term average 5.1 spills a year (monitored since 2017) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 28 hours spilling →	River Exe	8	28	down 11%	100%
Dawlish SSO (Brook Street) Overflow on sewer network Company site name BROOK ST MANOR GARDENS_CSO_DAWLISH EA ID / permit SBB00354 · 200821 Outlet location SX95677674 (OS grid reference) · View on Apple Maps WFD catchment Dawlish Water (GB108045008910) Bathing water Dawlish Town 2024 spills / hours 42 / 25 Long-term average 25.0 spills a year High-spill reason (company) Not asset maintenance - hydraulic capacity Investigation Operational investigation ongoing Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 28 hours spilling →	Dawlish Water(S)	41	28	down 2%	100%
Old Jail Combined Sewer Overflow Overflow on sewer network Company site name OLD JAIL_CSO_BODMIN EA ID / permit SBB00877 · 301827 Outlet location SX06476737 (OS grid reference) · View on Apple Maps WFD catchment Lower River Camel (GB108049000190) Shellfish water Camel Estuary 2024 spills / hours 36 / 25 Long-term average 52.0 spills a year (monitored since 2020) 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 27 hours spilling →	Bodmin Town Leat	42	27	up 17%	98%
Meavy Wastewater Treatment Works Inlet overflow at sewage works Sewage works Meavy Company site name MEAVY S T STW_SO_DOUSLAND EA ID / permit SBB00757 · 301942 Outlet location SX53946717 (OS grid reference) · View on Apple Maps WFD catchment Meavy (GB108047003660) 2024 spills / hours 14 / 6.1 Long-term average 20.5 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 27 hours spilling →	River Meavy (S)	34	27	up 143%	100%
Fleet Walk No.2 CSO Overflow on sewer network Company site name FLEET WALK 2_CSO_TORQUAY EA ID / permit SBB00457 · 200225 Outlet location SX91746338 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Bathing water Beacon Cove 2024 spills / hours 23 / 29 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 26 hours spilling →	Torquay Harbour	18	26	down 22%	100%
Coombe Road CSO Overflow on sewer network Company site name COOMBE ROAD_CSO_SALTASH EA ID / permit SBB00305 · 302584 Outlet location SX42885845 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment 2024 spills / hours 8 / 15 Long-term average 9.3 spills a year Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	River Tamar Estuary(E)	10	26	up 25%	100%
Home Close Pumping Station Storm discharge at pumping station Company site name CHILLINGTON SPS_PSCSOEO_CHILLINGTON EA ID / permit SBB00585 · 202168 Outlet location SX79494265 (OS grid reference) · View on Apple Maps WFD catchment Avon (DevonTidal) and Sth Hams - Frogmore (GB108046004760) Shellfish water Salcombe 2024 spills / hours 2 / 23 Long-term average 0.9 spills a year (monitored since 2016) Investigation No investigation activity in reporting period Improvement Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 26 hours spilling →	Frogmore Stream (via SWS)	2	26	no change	100%
Shinner'S Bridge CSO Overflow on sewer network Company site name SHINNERS BRIDGE_CSO_DARTINGTON EA ID / permit SBB01082 · 202966 Outlet location SX78796215 (OS grid reference) · View on Apple Maps WFD catchment Bidwell Brook (GB108046005160) Bathing water Steamer Quay, Dart Estuary Shellfish water Dart 2024 spills / hours 37 / 97 Long-term average 41.5 spills a year (monitored since 2019) Monitor below 90% Comms failure / issue · Resolved - Mar Investigation UWWTR investigation completed Improvement Env Act (SODRP) improvement ongoing, Bathing Water and/or Shellfish Water improvement ongoing Volume & pollution Estimate from 26 hours spilling →	Bidwell Brook	18	26	down 51%	89%
Tinwood Combined Sewer Overflow Overflow on sewer network Company site name TINWOOD_CSO_SPARKWELL EA ID / permit SBB01245 · 301876 Outlet location SX58165732 (OS grid reference) · View on Apple Maps WFD catchment Silverbridge Lake (GB108047004000) 2024 spills / hours 16 / 7.6 Long-term average 18.7 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 26 hours spilling →	Trib of Silverbridge Lake	14	26	down 13%	97%
Lawhitton WwTW CSO Inlet overflow at sewage works Sewage works Lawhitton Company site name LAWHITTON STW_SO_LAWHITTON EA ID / permit SBB00676 · NRA-SW-1341 Outlet location SX36198246 (OS grid reference) · View on Apple Maps WFD catchment Tamar (River Lyd to River Inny) (GB108047007910) 2024 spills / hours 14 / 29 Long-term average 20.8 spills a year (monitored since 2021) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Trib of River Tamar	12	25	down 14%	100%
Copper TERRACE_CSO_HAYLE Overflow on sewer network EA ID / permit SBB01400 · Permit applied for Outlet location SW56913807 (OS grid reference) · View on Apple Maps WFD catchment HAYLE ESTUARY (E) (GB530804906700) 2024 spills / hours 0 / 0.0 Long-term average 1.3 spills a year (monitored since 2023) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Hayle Estuary (E)	4	25	up from 0	100%
St Thomas Street CSO Overflow on sewer network Company site name O/S 58 THOMAS ST_CSO_PENRYN EA ID / permit SBB01160 · 303478 Outlet location SW78613422 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Fal Estuary 2024 spills / hours 28 / 24 Long-term average 23.2 spills a year (monitored since 2010) Investigation Env Act (SODRP) investigation ongoing Improvement Env Act (SODRP) improvement ongoing Volume & pollution Estimate from 25 hours spilling →	Trib of Penryn River(S)	23	25	down 18%	100%
Bitton Park Road CSO Overflow on sewer network Company site name 153 BITTON PARK ROAD_CSO_TEIGNMOUTH EA ID / permit SBB00113 · 203345 Outlet location SX93277295 (OS grid reference) · View on Apple Maps WFD catchment Not part of a WFD catchment Shellfish water Teign Estuary 2024 spills / hours 0 / 0.0 Long-term average 2.5 spills a year (monitored since 2015) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Teign Estuary(E)	17	25	up from 0	100%
East Taphouse WwTW Inlet overflow at sewage works Sewage works East Taphouse Company site name EAST TAPHOUSE STW_SO_EAST TAPHOUSE EA ID / permit SBB00398 · SWWA 730 Outlet location SX18036345 (OS grid reference) · View on Apple Maps WFD catchment Fowey (Warleggan to St Neot) (GB108048001410) 2024 spills / hours 13 / 11 Long-term average 21.3 spills a year (monitored since 2019) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Tributary of River Fowey	18	25	up 38%	100%
East Street CSO Overflow on sewer network Company site name EAST STREET_CSO_NORTH MOLTON EA ID / permit SBB00396 · 201948 Outlet location SS74362983 (OS grid reference) · View on Apple Maps WFD catchment Mole (Source to Burcombe Stream) (GB108050019970) 2024 spills / hours 25 / 12 Long-term average 47.0 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 25 hours spilling →	R. Mole (S)	57	25	up 128%	100%
Scawns Hill CSO Overflow on sewer network Company site name SCAWNS HILL_CSO_MENHENIOT EA ID / permit SBB01057 · 301857 Outlet location SX28466298 (OS grid reference) · View on Apple Maps WFD catchment Seaton (GB108048002320) Bathing water Seaton (Cornwall) 2024 spills / hours 0 / 0.0 Long-term average 1.0 spills a year (monitored since 2015) Investigation No investigation activity in reporting period Improvement No improvement action in reporting period Volume & pollution Estimate from 25 hours spilling →	Tributary of the River Seaton	10	25	up from 0	100%

Sewage treatment works

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

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