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
Ebblake Pumping Station
Storm discharge at pumping station
Company site name
VERWOOD EBBLAKE
EA ID / permit
WXW00400 · 400643
Outlet location
SU1079607805 (OS grid reference) · View on Apple Maps
WFD catchment
Crane (Dorset) (GB108043016090)
2024 spills / hours
24 / 241
Long-term average
16.6 spills a year (monitored since 2018)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Env Act (SODRP) improvement ongoing, Operational improvement completed
Volume & pollution
Estimate from 40 hours spilling →
(S) Ebblake Stream 6 40 down 75% 99%
Semley Water Recycling Centre
Inlet overflow at sewage works
Sewage works
Semley
Company site name
SEMLEY INLET
EA ID / permit
WXW00974 · 040076
Outlet location
ST8743826938 (OS grid reference) · View on Apple Maps
WFD catchment
Sem (GB108043016210)
2024 spills / hours
24 / 53
Long-term average
19.0 spills a year (monitored since 2022)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 39 hours spilling →
Tributary of River Sem 17 39 down 29% 100%
Wood Lane PS
Storm discharge at pumping station
Company site name
POOLE WOOD LANE
EA ID / permit
WXW01276 · 401257
Outlet location
SZ0546096960 (OS grid reference) · View on Apple Maps
WFD catchment
Stour (Lower) (GB108043011040)
2024 spills / hours
24 / 65
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 38 hours spilling →
Trib of the River Stour 13 38 down 46% 100%
Wrington Water Recycling Centre
Inlet overflow at sewage works
Sewage works
Wrington
Company site name
WRINGTON INLET
EA ID / permit
WXW01291 · 102486
Outlet location
ST4649062634 (OS grid reference) · View on Apple Maps
WFD catchment
Yeo - source to conf Congresbury Yeo (GB109052021640)
2024 spills / hours
10 / 58
Long-term average
11.3 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 38 hours spilling →
Trib of Congresbury Yeo(S) 5 38 down 50% 94%
Radstock Water Recycling Centre
Inlet overflow at sewage works
Sewage works
Radstock
Company site name
RADSTOCK MILL LANE INLET 1
EA ID / permit
WXW00911 · 102630
Outlet location
ST6990555133 (OS grid reference) · View on Apple Maps
WFD catchment
Wellow Bk - Snails Bk to Bristol Avon (GB109053022271)
2024 spills / hours
6 / 28
Long-term average
21.8 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 38 hours spilling →
Wellow Brook 13 38 up 117% 100%
Saltford High Street CSO
Overflow on sewer network
Company site name
SALTFORD O/S 46 HIGH STREET
EA ID / permit
WXW00952 · 013091
Outlet location
ST6878067340 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
57 / 91
Long-term average
52.4 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 37 hours spilling →
River Avon (via SWS) 38 37 down 33% 98%
Moor Lane Combined Sewer Overflow
Overflow on sewer network
Company site name
WINCANTON MOOR LANE
EA ID / permit
WXW00752 · 041687
Outlet location
ST7130227880 (OS grid reference) · View on Apple Maps
WFD catchment
Cale (GB108043015850)
2024 spills / hours
20 / 87
Long-term average
18.0 spills a year (monitored since 2023)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 37 hours spilling →
Trib of River Cale via SWS 10 37 down 50% 100%
Merlin Close CSO
Overflow on sewer network
Company site name
BRISTOL MERLIN CLOSE VORTEX
EA ID / permit
WXW00714 · 013101
Outlet location
ST5673677540 (OS grid reference) · View on Apple Maps
WFD catchment
Trym - source to conf R Avon (Brist) (GB109053027530)
2024 spills / hours
35 / 48
Long-term average
29.8 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 37 hours spilling →
River Trym 26 37 down 26% 100%
24 Rowlandson Gardens CSO
Overflow on sewer network
Company site name
BRISTOL ROWLANDSON GARDENS NO 24
EA ID / permit
WXW00020 · 101729
Outlet location
ST6056277033 (OS grid reference) · View on Apple Maps
WFD catchment
Frome (Brist) - Bradley Bk to conf Floating Hbr (GB109053027840)
2024 spills / hours
21 / 96
Long-term average
14.8 spills a year (monitored since 2021)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 37 hours spilling →
Trib of Horfield Brook via SWS 11 37 down 48% 100%
St Leonards Forest Edge Drive PS
Storm discharge at pumping station
Company site name
ST LEONARDS FOREST EDGE DRIVE
EA ID / permit
WXW01043 · 402454
Outlet location
SU1086204683 (OS grid reference) · View on Apple Maps
WFD catchment
Crane (Dorset) (GB108043016090)
2024 spills / hours
12 / 66
Long-term average
12.0 spills a year (monitored since 2023)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 37 hours spilling →
Trib. the Moors River via SWS 7 37 down 42% 99%
224 Henleaze Road CSO
Overflow on sewer network
Company site name
BRISTOL HENLEAZE ROAD O/S EASTFIELD INN
EA ID / permit
WXW00019 · 100479
Outlet location
ST5801977358 (OS grid reference) · View on Apple Maps
WFD catchment
Trym - source to conf R Avon (Brist) (GB109053027530)
2024 spills / hours
37 / 42
Long-term average
38.3 spills a year (monitored since 2019)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 37 hours spilling →
Trib of River Trym via SWS 38 37 up 3% 100%
Church Knowle Animal Sanctuary PS
Storm discharge at pumping station
Company site name
CHURCH KNOWLE ANIMAL SANCTUARY
EA ID / permit
WXW00281 · 401419
Outlet location
SY9376781585 (OS grid reference) · View on Apple Maps
WFD catchment
Corfe River (GB108044010020)
2024 spills / hours
23 / 87
Long-term average
14.6 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 36 hours spilling →
A Tributary of the Corfe River 9 36 down 61% 100%
Prior Park Road CSO
Overflow on sewer network
Company site name
BATH PRIOR PARK ROAD
EA ID / permit
WXW00888 · NPSWQD002498
Outlet location
ST7539064300 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
47 / 63
Long-term average
52.6 spills a year (monitored since 2018)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 36 hours spilling →
River Avon via SWS 53 36 up 13% 100%
Aller Pumping Station
Storm discharge at pumping station
Company site name
ALLER
EA ID / permit
WXW00074 · 071143
Outlet location
ST3974229206 (OS grid reference) · View on Apple Maps
WFD catchment
King's Sedgemoor Drain - Henley Sluice to mouth (GB108052021150)
2024 spills / hours
15 / 113
Long-term average
10.2 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 35 hours spilling →
Oxleasedrove Rhyne East 8 35 down 47% 100%
Somerton Road Combined Sewer of
Overflow on sewer network
Company site name
LANGPORT SOMERTON ROAD
EA ID / permit
WXW01006 · 102571
Outlet location
ST4200227090 (OS grid reference) · View on Apple Maps
WFD catchment
King's Sedgemoor Drain - Henley Sluice to mouth (GB108052021150)
2024 spills / hours
35 / 69
Long-term average
27.2 spills a year (monitored since 2019)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
No investigation activity in reporting period
Improvement
Operational improvement completed
Volume & pollution
Estimate from 35 hours spilling →
Northstreet Moor Rhyne via SWS 36 35 up 3% 100%
Moorland Road CSO
Overflow on sewer network
Company site name
BATH MOORLAND ROAD NEAR NO 49
EA ID / permit
WXW00754 · 102781
Outlet location
ST7390765093 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
49 / 79
Long-term average
46.3 spills a year (monitored since 2019)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
River Avon(S) 46 34 down 6% 100%
Sloway Lane Pumping Station
Storm discharge at pumping station
Company site name
WEST HUNTSPILL SLOWAY LANE
EA ID / permit
WXW01001 · 100880
Outlet location
ST2912045660 (OS grid reference) · View on Apple Maps
WFD catchment
PARRETT (GB540805210900)
Bathing water
Burnham Jetty North
2024 spills / hours
10 / 30
Long-term average
9.4 spills a year (monitored since 2017)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
(E) River Parrett 10 34 no change 100%
Taunton Road PS
Storm discharge at pumping station
Company site name
BRIDGWATER TAUNTON ROAD
EA ID / permit
WXW01105 · 102692
Outlet location
ST3051035800 (OS grid reference) · View on Apple Maps
WFD catchment
Parrett (GB540805210900)
Bathing water
Burnham Jetty North
2024 spills / hours
50 / 81
Long-term average
23.9 spills a year (monitored since 2017)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 34 hours spilling →
River Parrett(Tidal)(E) 15 34 down 70% 100%
Manor Wood CSO
Overflow on sewer network
Company site name
BRISTOL MANOR WOOD OPEN SPACE RETENTION TANK
EA ID / permit
WXW00683 · 101725
Outlet location
ST5733869246 (OS grid reference) · View on Apple Maps
WFD catchment
The Malago - source to conf R Avon (Brist New Cut) (GB109053021970)
2024 spills / hours
27 / 76
Long-term average
20.1 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 34 hours spilling →
The Malago 16 34 down 41% 100%
Patford Street CSO
Overflow on sewer network
Company site name
CALNE MARDEN HOUSE CULVERT AT REAR
EA ID / permit
WXW00846 · 100775
Outlet location
ST9971470764 (OS grid reference) · View on Apple Maps
WFD catchment
Marden - source to conf Cowage Bk (GB109053022050)
2024 spills / hours
32 / 111
Long-term average
23.3 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 34 hours spilling →
River Marden 10 34 down 69% 94%
Rodwell Avenue CSO
Overflow on sewer network
Company site name
WEYMOUTH RODWELL AVENUE
EA ID / permit
WXW00937 · 400894
Outlet location
SY6806078620 (OS grid reference) · View on Apple Maps
WFD catchment
WEY (GB510804415700)
2024 spills / hours
56 / 48
Long-term average
47.2 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
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 34 hours spilling →
Weymouth Harbour via SWS (E) 44 34 down 21% 98%
Chafey'S Lake CSO
Overflow on sewer network
Company site name
WEYMOUTH CHICKERELL/CHAFFEYS ATTENUATION TANK RADIPOLE
EA ID / permit
WXW00243 · 043152
Outlet location
SY6603080050 (OS grid reference) · View on Apple Maps
WFD catchment
Wey (GB108044010210)
2024 spills / hours
17 / 64
Long-term average
10.7 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 33 hours spilling →
Tributary of the River Wey 14 33 down 18% 96%
Stapleton Road CSO
Overflow on sewer network
Company site name
BRISTOL STAPLETON ROAD R/O BLACK SWAN (UNDER FLYOVER)
EA ID / permit
WXW01053 · 101745
Outlet location
ST5612074460 (OS grid reference) · View on Apple Maps
WFD catchment
BRISTOL AVON (GB530905415405)
2024 spills / hours
30 / 142
Long-term average
18.0 spills a year (monitored since 2019)
Monitor below 90%
Telemetry or data archiving failure / issue · Resolved - Sep
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation ongoing
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 33 hours spilling →
River Avon via SWS (Estuarine) 8 33 down 73% 72%
37 Station Road CSO
Overflow on sewer network
Company site name
ILMINSTER STATION ROAD NO 37
EA ID / permit
WXW00029 · 102601
Outlet location
ST3529414852 (OS grid reference) · View on Apple Maps
WFD catchment
Isle - Upper to conf Cad Bk (GB108052015190)
2024 spills / hours
21 / 35
Long-term average
12.1 spills a year (monitored since 2019)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing, Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 32 hours spilling →
Shudrick Stream 22 32 up 5% 100%
Irving Close CSO
Overflow on sewer network
Company site name
BRISTOL IRVING CLOSE SEYMOUR ROAD
EA ID / permit
WXW00581 · 103074
Outlet location
ST6610075400 (OS grid reference) · View on Apple Maps
WFD catchment
Siston Bk - source to conf R Avon (Brist) (GB109053027450)
2024 spills / hours
49 / 71
Long-term average
32.1 spills a year (monitored since 2018)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
No investigation activity in reporting period
Improvement
Operational improvement completed
Volume & pollution
Estimate from 32 hours spilling →
Trib of Warmley Brook via SWS 46 32 down 6% 100%
Queens Crescent CSO
Overflow on sewer network
Company site name
STOKE SUB HAMDON QUEENS CRESCENT R/O (OS 5300)
EA ID / permit
WXW00906 · 100695
Outlet location
ST4764618197 (OS grid reference) · View on Apple Maps
WFD catchment
Wellhams Brook (GB108052015350)
2024 spills / hours
44 / 40
Long-term average
37.8 spills a year (monitored since 2020)
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 32 hours spilling →
Tributary of Wellhams Brook 31 32 down 30% 100%
Melplash - Package Plant - Sewage Treatment Works
Inlet overflow at sewage works
Sewage works
Melplash Package Plant
EA ID / permit
WXW01339 · Unpermitted
Outlet location
SY4850098006 (OS grid reference) · View on Apple Maps
WFD catchment
Brit (Upper) (GB108044009600)
2024 spills / hours
– / –
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 32 hours spilling →
Tributary of the River Brit 24 32 92%
Bournemouth No 1 Pumping Station
Storm discharge at pumping station
Company site name
BOURNEMOUTH NO 1
EA ID / permit
WXW00155 · 400758
Outlet location
SZ0920090210 SZ0914090210 (OS grid reference) · View on Apple Maps
WFD catchment
Dorset / Hampshire (GB620705550000)
Bathing water
Bournemouth Pier
2024 spills / hours
11 / 21
Long-term average
8.6 spills a year (monitored since 2017)
Investigation
Env Act (SODRP) investigation ongoing, Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 31 hours spilling →
Poole Bay (C) 11 31 no change 100%
Lytchett Lane Pumping Station
Storm discharge at pumping station
Company site name
BOVINGTON LYTCHETT LANE
EA ID / permit
WXW00667 · 401064
Outlet location
SY8424687947 (OS grid reference) · View on Apple Maps
WFD catchment
Frome Dorset (Lower) d/s Louds Mill Dorchester (GB108044009692)
2024 spills / hours
16 / 65
Long-term average
11.0 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 31 hours spilling →
Tributary of River Frome 11 31 down 31% 100%
Oldfield Lane CSO
Overflow on sewer network
Company site name
BATH DURLEY PARK / OLDFIELD LANE JUNCTION
EA ID / permit
WXW00826 · 010940
Outlet location
ST7390865093 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
62 / 80
Long-term average
50.3 spills a year (monitored since 2019)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 31 hours spilling →
River Avon via SWS 51 31 down 18% 100%
Maidenbrook Lane CSO
Overflow on sewer network
Company site name
CHEDDON FITZPAINE MAIDENBROOK LANE
EA ID / permit
WXW00675 · 102262
Outlet location
ST2436027410 (OS grid reference) · View on Apple Maps
WFD catchment
Allen Brook(Maiden brook) (GB108052015460)
2024 spills / hours
36 / 260
Long-term average
31.0 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 30 hours spilling →
Trib of Old River Tone 8 30 down 78% 100%
Oakhill WwTW
Storm tank at sewage works
Sewage works
Oakhill
Company site name
OAKHILL STORM TANK
EA ID / permit
WXW00818 · 011557
Outlet location
ST6504548352 (OS grid reference) · View on Apple Maps
WFD catchment
Mells source to conf with Somerset Frome (GB109053022020)
2024 spills / hours
23 / 215
Long-term average
9.5 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 30 hours spilling →
Mells Stream 5 30 down 78% 100%
Shaftesbury WRC
Storm tank at sewage works
Sewage works
Shaftesbury
Company site name
SHAFTESBURY GEARS MILL STORM TANK
EA ID / permit
WXW00976 · 401758
Outlet location
ST8584021030 (OS grid reference) · View on Apple Maps
WFD catchment
Stirchell Brook (GB108043016110)
2024 spills / hours
19 / 60
Long-term average
11.7 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 30 hours spilling →
Stirchell Brook 8 30 down 58% 100%
7 Mill Street CSO
Overflow on sewer network
Company site name
WATCHET MILL STREET SO
EA ID / permit
WXW00048 · 101271
Outlet location
ST0702043370 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a river WB catchment
2024 spills / hours
58 / 43
Long-term average
61.7 spills a year (monitored since 2019)
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 30 hours spilling →
(S) Washford River 44 30 down 24% 96%
East Burton Cross Road PS
Storm discharge at pumping station
Company site name
EAST BURTON CROSS ROADS
EA ID / permit
WXW00389 · 401422
Outlet location
SY8316386974 (OS grid reference) · View on Apple Maps
WFD catchment
Frome Dorset Trib (River Win) (GB108044009650)
2024 spills / hours
9 / 38
Long-term average
5.0 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 30 hours spilling →
River Win 6 30 down 33% 100%
Cooper Dean Combined Sewer Overflow
Overflow on sewer network
Company site name
BOURNEMOUTH COOPER DEAN DETENTION TANK
EA ID / permit
WXW00322 · 041221
Outlet location
SZ1313593804 (OS grid reference) · View on Apple Maps
WFD catchment
Stour (Lower) (GB108043011040)
2024 spills / hours
33 / 80
Long-term average
19.2 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing, Operational improvement completed
Volume & pollution
Estimate from 29 hours spilling →
River Stour via SWS 12 29 down 64% 98%
Cam Valley WwTW
Inlet overflow at sewage works
Sewage works
Cam Valley
Company site name
CAM VALLEY DUNKERTON INLET
EA ID / permit
WXW00225 · 102712
Outlet location
ST7018658891 (OS grid reference) · View on Apple Maps
WFD catchment
Cam Bk - source to conf Wellow Bk (GB109053022290)
2024 spills / hours
82 / 266
Long-term average
59.0 spills a year (monitored since 2023)
Investigation
No investigation activity in reporting period
Improvement
Operational improvement completed
Volume & pollution
Estimate from 29 hours spilling →
Cam Brook(S) 28 29 down 66% 100%
Monksilver Pumping Station
Storm discharge at pumping station
Company site name
MONKSILVER B3188
EA ID / permit
WXW00747 · 102301
Outlet location
ST0722037610 (OS grid reference) · View on Apple Maps
WFD catchment
Monksilver Stream (GB108051020260)
2024 spills / hours
29 / 229
Long-term average
18.8 spills a year (monitored since 2021)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 29 hours spilling →
Monksilver Stream (S) 9 29 down 69% 100%
Turlin Main Pumping Station
Storm discharge at pumping station
Company site name
POOLE TURLIN MAIN BLANDFORD ROAD TURLIN MOOR
EA ID / permit
WXW01161 · 400850
Outlet location
SY9835792200 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a river WB catchment
Bathing water
Poole Harbour Rockley Sands
Shellfish water
Poole Bay; Poole Harbour North; Poole Harbour South; Poole Harbour West
2024 spills / hours
21 / 48
Long-term average
8.8 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 29 hours spilling →
Lytchett Bay 10 29 down 52% 100%
Poole (Branksome Chine) Sewage Pump
Storm discharge at pumping station
Company site name
POOLE BRANKSOME CHINE
EA ID / permit
WXW00865 · NPSWQD003865
Outlet location
SZ0678089390 (OS grid reference) · View on Apple Maps
WFD catchment
Dorset / Hampshire (GB620705550000)
2024 spills / hours
7 / 16
Long-term average
9.3 spills a year (monitored since 2020)
Investigation
Env Act (SODRP) investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 29 hours spilling →
English Channel 9 29 up 29% 100%
Englishcombe Lane CSO
Overflow on sewer network
Company site name
BATH ENGLISHCOMBE LANE / SOUTHDOWN ROAD JUNCTION
EA ID / permit
WXW00406 · 101929
Outlet location
ST7343064930 (OS grid reference) · View on Apple Maps
WFD catchment
Bristol Avon (By Bk to Netham Weir) (GB109053027371)
2024 spills / hours
55 / 71
Long-term average
48.3 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 completed
Volume & pollution
Estimate from 29 hours spilling →
River Avon (S) 49 29 down 11% 100%
Brewery Lane CSO
Overflow on sewer network
Company site name
ILMINSTER BREWERY LANE
EA ID / permit
WXW00170 · 102396
Outlet location
ST3580914482 (OS grid reference) · View on Apple Maps
WFD catchment
Isle - Upper to conf Cad Bk (GB108052015190)
2024 spills / hours
23 / 27
Long-term average
35.4 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 29 hours spilling →
Shudrick Stream 21 29 down 9% 100%
St Annes Terrace CSO
Overflow on sewer network
Company site name
BRISTOL ST ANNES TERR/BRISLINGTON BROOK
EA ID / permit
WXW01035 · 100584/CS/01
Outlet location
ST6233672005 (OS grid reference) · View on Apple Maps
WFD catchment
Brislington Bk - source to conf R Avon (Brist) (GB109053021980)
2024 spills / hours
32 / 71
Long-term average
22.7 spills a year (monitored since 2019)
Investigation
Operational investigation completed
Improvement
Operational improvement ongoing
Volume & pollution
Estimate from 29 hours spilling →
Brislington Brook 19 29 down 41% 100%
Wells Road PS
Storm discharge at pumping station
Company site name
GLASTONBURY WELLS ROAD
EA ID / permit
WXW01207 · 102377
Outlet location
ST5066040300 (OS grid reference) · View on Apple Maps
WFD catchment
Hartlake (GB108052021171)
2024 spills / hours
16 / 120
Long-term average
7.9 spills a year (monitored since 2019)
Investigation
No investigation activity in reporting period
Improvement
Operational improvement completed
Volume & pollution
Estimate from 29 hours spilling →
Trib of Rivr Sheppey(S) 8 29 down 50% 100%
Knighton Lane CSO
Overflow on sewer network
Company site name
BROADMAYNE KNIGHTON LANE (PUMPED)
EA ID / permit
WXW00603 · 401593
Outlet location
SY7308086600 (OS grid reference) · View on Apple Maps
WFD catchment
Tadnoll Brook (including Empool Bottom) (GB108044009660)
2024 spills / hours
18 / 24
Long-term average
37.0 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 28 hours spilling →
Tadnoll Brook(S) 31 28 up 72% 100%
Langton Herring WRC
Inlet overflow at sewage works
Sewage works
Langton Herring
Company site name
LANGTON HERRING OFF LOWER FARM INLET
EA ID / permit
WXW00617 · 040049
Outlet location
SY6093382762 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a river WB catchment
2024 spills / hours
34 / 99
Long-term average
25.4 spills a year (monitored since 2021)
High-spill reason (company)
Not Applicable - Ongoing investigation
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
Env Act (SODRP) improvement ongoing
Volume & pollution
Estimate from 28 hours spilling →
Tributary of West Fleet 38 28 up 12% 100%
Locking Village Pumping Station
Storm discharge at pumping station
Company site name
LOCKING VILLAGE
EA ID / permit
WXW00632 · 100524/PC/01
Outlet location
ST3574060250 (OS grid reference) · View on Apple Maps
WFD catchment
Uphill Great Rhyne - source to conf R Axe Estuary (GB109052021590)
2024 spills / hours
10 / 49
Long-term average
5.7 spills a year (monitored since 2020)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 28 hours spilling →
Trib of Uphill Great Rhne 6 28 down 40% 100%
Chilton Street(Saltlands) PS
Storm discharge at pumping station
Company site name
BRIDGWATER CHILTON STREET SALTLANDS
EA ID / permit
WXW00276 · 102690
Outlet location
ST2996038050 (OS grid reference) · View on Apple Maps
WFD catchment
Parrett (GB540805210900)
Bathing water
Burnham Jetty North
2024 spills / hours
41 / 47
Long-term average
21.6 spills a year (monitored since 2017)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 28 hours spilling →
River Parrett(Tidal)(E) 15 28 down 63% 100%
Osmington Bay Holiday Centre PS
Storm discharge at pumping station
Company site name
OSMINGTON PONTINS
EA ID / permit
WXW00830 · 051316
Outlet location
SY7202082030 (OS grid reference) · View on Apple Maps
WFD catchment
Dorset / Hampshire (GB620705550000)
2024 spills / hours
26 / 80
Long-term average
15.0 spills a year (monitored since 2021)
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement
No improvement action in reporting period
Volume & pollution
Estimate from 28 hours spilling →
English Channel 15 28 down 42% 100%
Colley Lane Pumping Station
Storm discharge at pumping station
Company site name
BRIDGWATER COLLEY LANE
EA ID / permit
WXW00311 · 071342
Outlet location
ST3033036411 (OS grid reference) · View on Apple Maps
WFD catchment
Not part of a river WB catchment
Bathing water
Burnham Jetty North
2024 spills / hours
24 / 31
Long-term average
5.9 spills a year (monitored since 2017)
Investigation
Operational investigation completed
Improvement
Operational improvement completed
Volume & pollution
Estimate from 28 hours spilling →
River Parrett(E) 11 28 down 54% 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.