Storm overflow register · 2025 annual return

Wessex Water storm overflows, 2025

Wessex Water reported 1,346 storm overflows in England for 2025. Together they recorded 24,442 spills over 190,666 hours, an average of 18.2 spills per overflow against 20.4 across England. That ranks 6 of 10 companies, where 1 is the fewest spills per overflow. Counting the same overflows in both years, spills were down 45% on 2024.

220 overflows did not spill · 62 spilled more than 60 times · 1,308 had monitors working for 90% of the year or more · 242 sewage treatment works with overflows

Hours spilling by month, 2025

020k40k60k80kJan 2025: 60,197 hours spillingJanFeb 2025: 30,296 hours spillingFebMar 2025: 7,928 hours spillingMarApr 2025: 1,385 hours spillingAprMay 2025: 762 hours spillingMayJun 2025: 472 hours spillingJunJul 2025: 218 hours spillingJulAug 2025: 452 hours spillingAugSep 2025: 2,922 hours spillingSepOct 2025: 1,454 hours spillingOctNov 2025: 18,116 hours spillingNovDec 2025: 66,686 hours spillingDec
Hours spilling, all Wessex Water overflows, from the start/stop records. Spills running across a month end are split between the months.

All Wessex Water storm overflows

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

OverflowDischarges toSpills 2025Hours 2025Spills vs 2024Monitor uptime
Brickyard Lane Pumping Station
Storm discharge at pumping station
Company site name
GILLINGHAM BRICKYARD LANE
EA ID / permit
WXW00173 · 401128
Outlet location
ST8064125899 (OS grid reference) · View on Apple Maps
WFD catchment
Stour (Headwaters) (GB108043022490)
2024 spills / hours
2 / 10
Long-term average
1.2 spills a year (monitored since 2021)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 21 hours spilling →
River Stour 4 21 up 100% 100%
Frogmore Road CSO
Overflow on sewer network
Company site name
WESTBURY FROGMORE ROAD OPP 67
EA ID / permit
WXW00772 · EPRJB3891EW
Outlet location
ST8724751948 (OS grid reference) · View on Apple Maps
WFD catchment
Bitham Bk - source to conf Biss Bk (GB109053021770)
2024 spills / hours
42 / 84
Long-term average
24.8 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
Operational improvement completed
Volume & pollution
Estimate from 20 hours spilling →
Tributary of the Bitham Brook 25 20 down 40% 100%
Portishead High Street nr Builders Yard
Overflow on sewer network
EA ID / permit
WXW00773 · Unpermitted
Outlet location
ST4700176244 (OS grid reference) · View on Apple Maps
WFD catchment
Portbury Ditch - source to conf R Severn Estuary (GB109052027330)
2024 spills / hours
27 / 40
Long-term average
25.5 spills a year (monitored since 2024)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 20 hours spilling →
Portbury Ditch 24 20 down 11% 100%
Egmont Road PS
Storm discharge at pumping station
Company site name
POOLE EGMONT ROAD
EA ID / permit
WXW00404 · 402037
Outlet location
SY9764791734 (OS grid reference) · View on Apple Maps
WFD catchment
POOLE HARBOUR (GB520804415800)
Bathing water
Poole Harbour Rockley Sands
Shellfish water
Poole Bay; Poole Harbour North; Poole Harbour South; Poole Harbour West
2024 spills / hours
4 / 19
Long-term average
4.0 spills a year (monitored since 2017)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 20 hours spilling →
Lytchett Bay (SWS) Estuarine 4 20 no change 100%
Mountway Bishops Hull CSO
Overflow on sewer network
Company site name
TAUNTON MOUNTWAY BISHOPS HULL
EA ID / permit
WXW00761 · 103408
Outlet location
ST2094724968 (OS grid reference) · View on Apple Maps
WFD catchment
Tone Ds Taunton (GB108052015482)
Bathing water
River Tone at French Weir Park
2024 spills / hours
15 / 25
Long-term average
7.9 spills a year (monitored since 2018)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 20 hours spilling →
River Tone 11 20 down 27% 100%
Cotham Brow CSO
Overflow on sewer network
Company site name
BRISTOL COTHAM BROW O/S NO 137
EA ID / permit
WXW00329 · 100873
Outlet location
ST5616074420 (OS grid reference) · View on Apple Maps
WFD catchment
BRISTOL AVON (GB530905415405)
2024 spills / hours
54 / 29
Long-term average
50.7 spills a year (monitored since 2020)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 20 hours spilling →
River Avon(E) 47 20 down 13% 100%
Bennetts Field CSO
Overflow on sewer network
Company site name
WINCANTON BENNET FIELD
EA ID / permit
WXW00127 · 402524
Outlet location
ST7108627887 (OS grid reference) · View on Apple Maps
WFD catchment
Cale (GB108043015850)
2024 spills / hours
27 / 32
Long-term average
29.3 spills a year (monitored since 2018)
Investigation
Operational investigation ongoing
Improvement
Operational improvement completed
Volume & pollution
Estimate from 20 hours spilling →
River Cale 21 20 down 22% 100%
Winsley Water Recyling Centre
Storm tank at sewage works
Sewage works
Winsley Water Recyling Centre
Company site name
WINSLEY STORM TANK
EA ID / permit
WXW01270 · 102718
Outlet location
ST7948060070 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (Semington Bk to By Bk) (GB109053027372)
2024 spills / hours
21 / 263
Long-term average
16.3 spills a year (monitored since 2023)
Investigation
No investigation activity in reporting period
Improvement
Operational improvement completed
Volume & pollution
Estimate from 20 hours spilling →
River Avon(S) 6 20 down 71% 100%
Gaunts Common STW
Storm tank at sewage works
Sewage works
Gaunts Common
Company site name
GAUNTS COMMON STORM TANK
EA ID / permit
WXW00459 · 402509
Outlet location
SU0260004920 (OS grid reference) · View on Apple Maps
WFD catchment
Uddens Water (GB108043011080)
2024 spills / hours
15 / 145
Long-term average
5.4 spills a year (monitored since 2021)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 20 hours spilling →
Tributary of Uddens Water 8 20 down 47% 100%
Holdenhurst Water Recycling Centre
Storm tank at sewage works
Sewage works
Holdenhurst
Company site name
HOLDENHURST RIVERSIDE AVENUE STORM TANK
EA ID / permit
WXW00552 · 401065
Outlet location
SZ1360195045 (OS grid reference) · View on Apple Maps
WFD catchment
Stour (Lower) (GB108043011040)
Bathing water
Christchurch Avon Beach; Christchurch Friar`s Cliff
2024 spills / hours
34 / 116
Long-term average
18.8 spills a year (monitored since 2017)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 20 hours spilling →
River Stour 4 20 down 88% 100%
Wootton Courtenay PS
Storm discharge at pumping station
Company site name
WOOTTON COURTENAY
EA ID / permit
WXW01286 · 102300
Outlet location
SS9335043450 (OS grid reference) · View on Apple Maps
WFD catchment
Aller (GB108051020230)
2024 spills / hours
4 / 10
Long-term average
6.0 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 20 hours spilling →
River Avill (S) 9 20 up 125% 100%
Cross East Pumping Station
Storm discharge at pumping station
Company site name
CROSS EAST
EA ID / permit
WXW00346 · 101667
Outlet location
ST4180454712 (OS grid reference) · View on Apple Maps
WFD catchment
Cheddar Yeo - source to conf Stubbingham Rhyne (GB109052021540)
2024 spills / hours
55 / 861
Long-term average
25.2 spills a year (monitored since 2021)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 20 hours spilling →
Cross Rhyne 6 20 down 89% 100%
St Johns School CSO
Overflow on sewer network
Company site name
BATH ST JOHNS RC PRIM SCHOOL AT REAR NR RECREATION GROUND
EA ID / permit
WXW01041 · 102777
Outlet location
ST7538064720 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
42 / 95
Long-term average
26.3 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
River Avon(S) 18 19 down 57% 100%
Durlston Road PS
Storm discharge at pumping station
Company site name
SWANAGE DURLSTON ROAD
EA ID / permit
WXW00387 · 402252
Outlet location
SZ0337077980 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a river WB catchment
2024 spills / hours
44 / 50
Long-term average
44.3 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 19 hours spilling →
Unnamed Stream to Durlston Bay 20 19 down 55% 100%
Wilcot Pumping Station
Storm discharge at pumping station
Company site name
PEWSEY WILCOT LODGE
EA ID / permit
WXW01259 · NPSWQD003670
Outlet location
SU1414060710 (OS grid reference) · View on Apple Maps
WFD catchment
Hampshire Avon (East) and Woodborough Stream (GB108043022410)
2024 spills / hours
25 / 261
Long-term average
10.7 spills a year (monitored since 2023)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Tributary of the River Avon 1 19 down 96% 100%
Gloucester Road CSO
Overflow on sewer network
Company site name
BRISTOL GLOUCESTER ROAD/CAMBRIDGE ROAD
EA ID / permit
WXW00469 · 013053
Outlet location
ST5611874456 (OS grid reference) · View on Apple Maps
WFD catchment
BRISTOL AVON (GB530905415405)
2024 spills / hours
33 / 37
Long-term average
31.3 spills a year (monitored since 2019)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 19 hours spilling →
Bristol Avon via SWS Estuarine 32 19 down 3% 100%
Horsey Lane Combined Sewer Overflow
Overflow on sewer network
Company site name
YEOVIL HORSEY LANE
EA ID / permit
WXW00561 · 101784
Outlet location
ST5520815508 (OS grid reference) · View on Apple Maps
WFD catchment
Dodham Brook (Yeo (Somset)) (GB108052015600)
2024 spills / hours
24 / 32
Long-term average
20.9 spills a year (monitored since 2018)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 19 hours spilling →
Dodham Brook 15 19 down 38% 100%
Wareham Wastewater Treatment Works
Storm tank at sewage works
Sewage works
Wareham
Company site name
WAREHAM KEYSWORTH DRIVE STORM TANK
EA ID / permit
WXW01190 · 401336
Outlet location
SY9364388640 (OS grid reference) · View on Apple Maps
WFD catchment
POOLE HARBOUR (GB520804415800)
Bathing water
Poole Harbour Rockley Sands
Shellfish water
Poole Bay; Poole Harbour North; Poole Harbour South; Poole Harbour West
2024 spills / hours
26 / 78
Long-term average
18.4 spills a year (monitored since 2017)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 19 hours spilling →
Tidal River Piddle 7 19 down 73% 100%
North Curry Main Pumping Station
Storm discharge at pumping station
Company site name
NORTH CURRY MAIN
EA ID / permit
WXW00801 · 101806
Outlet location
ST3200025980 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a river WB catchment
2024 spills / hours
18 / 53
Long-term average
19.2 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 18 hours spilling →
Trib of River Tone (S) 11 18 down 39% 92%
Park Road Combined Sewer Overflow
Overflow on sewer network
Company site name
MALMESBURY PARK ROAD
EA ID / permit
WXW00841 · 012853
Outlet location
ST9277687856 (OS grid reference) · View on Apple Maps
WFD catchment
Tetbury Avon - unnamed trib to conf Sherston Avon (GB109053027780)
2024 spills / hours
36 / 41
Long-term average
21.1 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Avon (Tetbury Branch) 18 18 down 50% 99%
Alma Road CSO
Overflow on sewer network
Company site name
BRISTOL ALMA ROAD O/S NO 87
EA ID / permit
WXW00077 · 102253
Outlet location
ST5612074460 (OS grid reference) · View on Apple Maps
WFD catchment
BRISTOL AVON (GB530905415405)
2024 spills / hours
28 / 37
Long-term average
28.3 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 18 hours spilling →
River Avon [Black Rocks] SWS 22 18 down 21% 100%
Avonmouth Road CSO
Overflow on sewer network
Company site name
BRISTOL AVONMOUTH ROAD / WEST TOWN ROAD
EA ID / permit
WXW00095 · 102091
Outlet location
ST5202277004 (OS grid reference) · View on Apple Maps
WFD catchment
BRISTOL AVON (GB530905415405)
2024 spills / hours
47 / 21
Long-term average
40.8 spills a year (monitored since 2020)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Avon via SWS (Estuarine) 36 18 down 23% 100%
Lower Hanham Road CSO
Overflow on sewer network
Company site name
BRISTOL HANHAM LOWER HANHAM ROAD
EA ID / permit
WXW00651 · 101759
Outlet location
ST6289872188 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
40 / 43
Long-term average
38.9 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Avon (via SWS) 26 18 down 35% 100%
Railway Place CSO
Overflow on sewer network
Company site name
BATH RAILWAY PLACE O/S ROYAL HOTEL
EA ID / permit
WXW00917 · 010885
Outlet location
ST7532164299 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
18 / 89
Long-term average
12.1 spills a year (monitored since 2018)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Avon via SWS 7 18 down 61% 96%
Hiscocks Drive CSO
Overflow on sewer network
Company site name
BATH HISCOCKS DRIVE ADJ TO RAILWAY BRIDGE
EA ID / permit
WXW00549 · 010941
Outlet location
ST7390865092 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
39 / 36
Long-term average
28.1 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 18 hours spilling →
River Avon via SWS 22 18 down 44% 100%
20 Orchard Close Pumping Station
Storm discharge at pumping station
Company site name
WELLINGTON WESTFORD
EA ID / permit
WXW01236 · 100532/PC/01
Outlet location
ST1235920522 (OS grid reference) · View on Apple Maps
WFD catchment
Westford Stream (GB108052015380)
2024 spills / hours
3 / 9.5
Long-term average
6.3 spills a year (monitored since 2023)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
Westford Stream 3 18 no change 100%
Lake Road Pumping Station
Storm discharge at pumping station
Company site name
PORTISHEAD LAKE GROUNDS
EA ID / permit
WXW00611 · 101909
Outlet location
ST4611077040 (OS grid reference) · View on Apple Maps
WFD catchment
BRISTOL AVON (GB530905415405)
2024 spills / hours
15 / 71
Long-term average
10.8 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 18 hours spilling →
Estuary (E) 7 18 down 53% 96%
Hampton Road CSO
Overflow on sewer network
Company site name
BRISTOL HAMPTON ROAD / MELVILLE COURT
EA ID / permit
WXW00496 · 102256
Outlet location
ST5612074460 (OS grid reference) · View on Apple Maps
WFD catchment
BRISTOL AVON (GB530905415405)
2024 spills / hours
28 / 30
Long-term average
25.8 spills a year (monitored since 2018)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 18 hours spilling →
River Avon via SWS (Estuarine) 24 18 down 14% 100%
Winscombe WwTW
Inlet overflow at sewage works
Sewage works
Winscombe
Company site name
WINSCOMBE INLET
EA ID / permit
WXW01268 · 071977
Outlet location
ST3999157769 (OS grid reference) · View on Apple Maps
WFD catchment
Lox Yeo - source to conf Rive Axe (GB109052021580)
2024 spills / hours
13 / 64
Long-term average
5.5 spills a year (monitored since 2022)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 18 hours spilling →
Lox Yeo River 3 18 down 77% 100%
Wellsway Combined Sewer Overflow
Overflow on sewer network
Company site name
BATH WELLSWAY NR 372
EA ID / permit
WXW01211 · NPSWQD008606
Outlet location
ST7538564299 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
46 / 29
Long-term average
37.6 spills a year (monitored since 2019)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Operational improvement completed
Volume & pollution
Estimate from 17 hours spilling →
River Avon 44 17 down 4% 100%
West Lulworth Pumping Station
Storm discharge at pumping station
Company site name
WEST LULWORTH HAMBURY FARM
EA ID / permit
WXW01222 · 401815
Outlet location
SY8242079730 (OS grid reference) · View on Apple Maps
WFD catchment
Dorset / Hampshire (GB620705550000)
Bathing water
Lulworth Cove
2024 spills / hours
41 / 568
Long-term average
9.3 spills a year (monitored since 2017)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 17 hours spilling →
English Channel(C) 8 17 down 80% 100%
Broad Quay CSO
Overflow on sewer network
Company site name
BRISTOL PRINCE STREET ROUNDABOUT
EA ID / permit
WXW00189 · 100456
Outlet location
ST5856772056 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a river WB catchment
2024 spills / hours
16 / 49
Long-term average
9.5 spills a year (monitored since 2020)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
Tributary of the River Avon 3 17 down 81% 100%
Pilford Heath Pumping Station
Storm discharge at pumping station
Company site name
WIMBORNE PILFORD HEATH
EA ID / permit
WXW00858 · 042514
Outlet location
SU0348001670 (OS grid reference) · View on Apple Maps
WFD catchment
Uddens Water (GB108043011080)
2024 spills / hours
26 / 51
Long-term average
24.0 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
Operational improvement completed
Volume & pollution
Estimate from 17 hours spilling →
Trib of Uddens Water (S) 14 17 down 46% 100%
Green Lane Pumping Station
Storm discharge at pumping station
Company site name
QUEEN CAMEL ENGLANDS MEAD GREEN LANE
EA ID / permit
WXW00483 · 071692
Outlet location
ST5929524947 (OS grid reference) · View on Apple Maps
WFD catchment
Cam - Lower (GB108052015650)
2024 spills / hours
3 / 10
Long-term average
1.6 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
River Cam 2 17 down 33% 100%
South East Pumping Station
Storm discharge at pumping station
Company site name
WAREHAM SOUTH EAST
EA ID / permit
WXW01012 · 402472
Outlet location
SY9267087240 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a river WB catchment
Shellfish water
Poole Bay; Poole Harbour North; Poole Harbour South; Poole Harbour West
2024 spills / hours
12 / 19
Long-term average
6.6 spills a year (monitored since 2017)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 17 hours spilling →
River Frome (Estuarine) 10 17 down 17% 100%
Feeder Road Combined Sewer Overflow
Overflow on sewer network
Company site name
BRISTOL FEEDER ROAD / BARTON HILL BRIDGE
EA ID / permit
WXW00419 · 101099
Outlet location
ST6134272479 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a river WB catchment
2024 spills / hours
22 / 67
Long-term average
13.7 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 17 hours spilling →
River Avon (Estuarine) 5 17 down 77% 100%
Lytchett Matravers - Castle Farm Road - S105A Sewage Pumping Station
Storm discharge at pumping station
EA ID / permit
WXW01338 · Unpermitted
Outlet location
SY9471696423 (OS grid reference) · View on Apple Maps
WFD catchment
Stour (Middle d/s Pimperne Brook) (GB108043016052)
2024 spills / hours
– / –
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 17 hours spilling →
Unnamed tributary of the River Stour 2 17 95%
Druid Wood Combined Sewer Overflow
Overflow on sewer network
Company site name
BRISTOL DRUID WOOD
EA ID / permit
WXW00382 · 100842
Outlet location
ST5526476276 (OS grid reference) · View on Apple Maps
WFD catchment
Trym - source to conf R Avon (Brist) (GB109053027530)
2024 spills / hours
28 / 40
Long-term average
27.7 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing, Operational improvement completed
Volume & pollution
Estimate from 17 hours spilling →
River Trym via SWS 19 17 down 32% 100%
Pine Court Combined Sewer Overflow
Overflow on sewer network
Company site name
RADSTOCK WATERLOO ROAD/PINE COURT
EA ID / permit
WXW00860 · 013132
Outlet location
ST6950654966 (OS grid reference) · View on Apple Maps
WFD catchment
Wellow Bk - Snails Bk to Bristol Avon (GB109053022271)
2024 spills / hours
23 / 52
Long-term average
19.3 spills a year (monitored since 2019)
Monitor below 90%
Sensor failure / issue · Resolved - Apr
Investigation
No investigation activity in reporting period
Improvement
Operational improvement completed
Volume & pollution
Estimate from 16 hours spilling →
Wellow Brook 10 16 down 57% 83%
Goldcroft Combined Sewer Overflow
Overflow on sewer network
Company site name
YEOVIL GOLDCROFT
EA ID / permit
WXW00471 · 071700
Outlet location
ST5639515975 (OS grid reference) · View on Apple Maps
WFD catchment
Dodham Brook (Yeo (Somset)) (GB108052015600)
2024 spills / hours
42 / 25
Long-term average
45.3 spills a year (monitored since 2023)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Dodham Brook via SWS 40 16 down 5% 96%
Red Lane Pumping Station
Storm discharge at pumping station
Company site name
CORFE CASTLE RED LANE
EA ID / permit
WXW00926 · 401200
Outlet location
SY9647081690 (OS grid reference) · View on Apple Maps
WFD catchment
Corfe River (GB108044010020)
2024 spills / hours
8 / 34
Long-term average
8.0 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 16 hours spilling →
Trib of Corfe River (S) 6 16 down 25% 100%
Rectory Road CSO
Overflow on sewer network
Company site name
FRAMPTON COTTERELL RECTORY ROAD O/S 54 PARSONAGE BRIDGE (NW)
EA ID / permit
WXW00925 · 103073
Outlet location
ST6653681713 (OS grid reference) · View on Apple Maps
WFD catchment
Frome (Brist) - conf Laddon Bk to conf Folly Bk (GB109053027820)
2024 spills / hours
46 / 346
Long-term average
35.1 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
River Frome 5 16 down 89% 98%
Horton House CSO
Overflow on sewer network
Company site name
BATH FORESTER AVENUE O/S HORTON HOUSE
EA ID / permit
WXW00563 · 101189
Outlet location
ST7541665700 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
33 / 69
Long-term average
22.9 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 16 hours spilling →
River Avon 18 16 down 45% 100%
Farm Lane CSO
Overflow on sewer network
Company site name
STREET FARM LANE
EA ID / permit
WXW00417 · 102379
Outlet location
ST4816837162 (OS grid reference) · View on Apple Maps
WFD catchment
South Drain (GB108052021181)
2024 spills / hours
19 / 57
Long-term average
11.6 spills a year (monitored since 2018)
Investigation
No investigation activity in reporting period
Improvement
Operational improvement completed
Volume & pollution
Estimate from 16 hours spilling →
South Drain 12 16 down 37% 100%
Maypole Farm CSO
Overflow on sewer network
Company site name
CLUTTON MAYPOLE FARM
EA ID / permit
WXW00699 · 103315
Outlet location
ST6219259182 (OS grid reference) · View on Apple Maps
WFD catchment
Cam Bk - source to conf Wellow Bk (GB109053022290)
2024 spills / hours
26 / 28
Long-term average
21.2 spills a year (monitored since 2021)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Trib of the Cam Brook 22 16 down 15% 100%
Frenchay Park Road CSO
Overflow on sewer network
Company site name
BRISTOL FRENCHAY PARK ROAD NO 46A
EA ID / permit
WXW00447 · 101240
Outlet location
ST6213076480 (OS grid reference) · View on Apple Maps
WFD catchment
Frome (Brist) - Bradley Bk to conf Floating Hbr (GB109053027840)
2024 spills / hours
26 / 53
Long-term average
16.0 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
River Frome(via A SWS) 11 16 down 58% 100%
Templecombe Combined Sewer Overflow
Overflow on sewer network
Company site name
TEMPLECOMBE ROYAL HOTEL
EA ID / permit
WXW01109 · 040122
Outlet location
ST7099722602 (OS grid reference) · View on Apple Maps
WFD catchment
Bow Brook North (GB108043015820)
2024 spills / hours
23 / 31
Long-term average
18.2 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Trib of Bow Brook 16 16 down 30% 100%
The Marsh Combined Sewer Overflow
Overflow on sewer network
Company site name
WEYMOUTH KNIGHTSDALE ROAD ATTENUATION TANK
EA ID / permit
WXW01124 · 400904
Outlet location
SY6758078730 (OS grid reference) · View on Apple Maps
WFD catchment
WEY (GB510804415700)
Bathing water
Weymouth Central
Shellfish water
Portland Harbour East; Portland Harbour West
2024 spills / hours
36 / 174
Long-term average
7.1 spills a year (monitored since 2017)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
Weymouth Harbour(E) 10 16 down 72% 100%
Mill Lane Pumping Station
Storm discharge at pumping station
Company site name
BRADFORD ABBAS MILL LANE
EA ID / permit
WXW00736 · 101782
Outlet location
ST5869914123 (OS grid reference) · View on Apple Maps
WFD catchment
Yeo Us Over Compton (GB108052015681)
2024 spills / hours
2 / 15
Long-term average
2.3 spills a year (monitored since 2018)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 16 hours spilling →
River Yeo 3 16 up 50% 100%
Shaftesbury WRC
Inlet overflow at sewage works
Sewage works
Shaftesbury
Company site name
SHAFTESBURY GEARS MILL INLET
EA ID / permit
WXW00975 · 401758
Outlet location
ST8615021610 (OS grid reference) · View on Apple Maps
WFD catchment
Stirchell Brook (GB108043016110)
2024 spills / hours
33 / 40
Long-term average
29.6 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 16 hours spilling →
Stirchell Brook 20 16 down 39% 100%

Sewage treatment works

Storm tanks and inlet overflows at each Wessex 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.