Theydon Bois
Inlet overflow at sewage works
- Sewage works
- Theydon Bois
- Company site name
- Theydon Bois STW
- EA ID / permit
- TWL00413 · TEMP.2954
- Outlet location
- TQ4769097720 (OS grid reference) · View on Apple Maps
- WFD catchment
- Brookhouse Brook (GB106037028150)
- 2024 spills / hours
- 115 / 1,207
- Long-term average
- 96.7 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 635 hours spilling →
|
Brookhouse Brook |
85 |
635 |
down 26% |
100% |
Hampstead Norreys WwTW
Inlet overflow at sewage works
- Sewage works
- Hampstead Norreys
- Company site name
- Hampstead Norreys STW
- EA ID / permit
- TWL00211 · CNTD.0066
- Outlet location
- SU5320075730 (OS grid reference) · View on Apple Maps
- WFD catchment
- Pang (GB106039023300)
- 2024 spills / hours
- 55 / 597
- Long-term average
- 66.5 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 629 hours spilling →
|
River Pang |
33 |
629 |
down 40% |
100% |
Ludgershall WwTW
Inlet overflow at sewage works (with treatment)
- Sewage works
- Ludgershall
- Company site name
- Ludgershall STW
- EA ID / permit
- TWL00283 · CSSC.1406
- Outlet location
- SP6611018630 (OS grid reference) · View on Apple Maps
- WFD catchment
- Ludgershall Brook and Muswellhill Brook (GB106039030060)
- Treatment
- Reed bed
- 2024 spills / hours
- 99 / 1,416
- Long-term average
- 49.9 spills a year (monitored since 2019)
- High-spill reason (company)
- Not asset maintenance - Hydraulic capacity
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 617 hours spilling →
|
Ludgershall Brook |
52 |
617 |
down 47% |
100% |
Epping Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Epping
- Company site name
- Fiddlers Hamlet STW
- EA ID / permit
- TWL00172 · CSSC.0295
- Outlet location
- TL4781000380 (OS grid reference) · View on Apple Maps
- WFD catchment
- Brookhouse Brook (GB106037028150)
- 2024 spills / hours
- 68 / 1,079
- Long-term average
- 53.7 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 603 hours spilling →
|
The Brookhouse Brook |
49 |
603 |
down 28% |
100% |
Cottered Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Cottered
- Company site name
- Cottered STW
- EA ID / permit
- TWL00115 · CSSC.1038
- Outlet location
- TL3152029680 (OS grid reference) · View on Apple Maps
- WFD catchment
- Beane (Source to Stevenage Brook) (GB106038040110)
- 2024 spills / hours
- 190 / 3,649
- Long-term average
- 94.0 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 594 hours spilling →
|
Cottered Brook |
36 |
594 |
down 81% |
100% |
Oxford (Sandford)
Storm tank at sewage works
- Sewage works
- Oxford
- Company site name
- Oxford STW
- EA ID / permit
- TWL00323 · TEMP.2827
- Outlet location
- SP5420002201 (OS grid reference) · View on Apple Maps
- WFD catchment
- Northfield Brook (Source to Thames) at Sandford (GB106039030180)
- 2024 spills / hours
- 162 / 3,199
- Long-term average
- 81.6 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 591 hours spilling →
|
Pottery Stream |
43 |
591 |
down 73% |
100% |
Witney Sewage Treatment Works
Storm tank at sewage works
- Sewage works
- Witney
- Company site name
- Witney STW
- EA ID / permit
- TWL00457 · CATM.3134
- Outlet location
- SP3464008410 (OS grid reference) · View on Apple Maps
- WFD catchment
- Windrush and tributaries (Little Rissington to Thames) (GB106039030440)
- 2024 spills / hours
- 141 / 2,800
- Long-term average
- 74.3 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 576 hours spilling →
|
The Curbridge Ditch |
37 |
576 |
down 74% |
100% |
Hamstead Marshall WwTW
Storm tank at sewage works
- Sewage works
- Hamstead Marshall
- Company site name
- Hamstead Marshall STW
- EA ID / permit
- TWL00212 · CSSC.1381
- Outlet location
- SU4172065210 (OS grid reference) · View on Apple Maps
- WFD catchment
- Middle Kennet (Hungerford to Newbury) (GB106039023174)
- 2024 spills / hours
- 86 / 1,009
- Long-term average
- 69.9 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 565 hours spilling →
|
Hamstead Stream |
42 |
565 |
down 51% |
100% |
Princes Risborough WwTW
Storm tank at sewage works (with treatment)
- Sewage works
- Princes Risborough
- Company site name
- Princes Risborough STW
- EA ID / permit
- TWL00333 · CTCR.1642
- Outlet location
- SP7983003840 (OS grid reference) · View on Apple Maps
- WFD catchment
- Kingsey Cuttle Brook and tributaries at Thame (GB106039030200)
- Treatment
- Reed bed
- 2024 spills / hours
- 95 / 1,612
- Long-term average
- 53.4 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 565 hours spilling →
|
Horsenden Stream |
36 |
565 |
down 62% |
100% |
Hatfield Heath WwTW
Storm tank at sewage works
- Sewage works
- Hatfield Heath
- Company site name
- Hatfield Heath STW
- EA ID / permit
- TWL00219 · CSSC.0261
- Outlet location
- TL5227013990 (OS grid reference) · View on Apple Maps
- WFD catchment
- Pincey Brook (GB106038033380)
- 2024 spills / hours
- 97 / 1,893
- Long-term average
- 85.6 spills a year (monitored since 2019)
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 565 hours spilling →
|
Hatfield Heath Watercourse |
29 |
565 |
down 70% |
100% |
Haddenham WwTW
Storm tank at sewage works
- Sewage works
- Haddenham
- Company site name
- Haddenham STW
- EA ID / permit
- TWL00207 · CSSC.2316
- Outlet location
- SP7441007520 (OS grid reference) · View on Apple Maps
- WFD catchment
- Scotsgrove Brook (upstream Kingsey Cuttle Brook) (GB106039030270)
- 2024 spills / hours
- 76 / 1,446
- Long-term average
- 56.0 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 553 hours spilling →
|
Scotsgrove Brook |
37 |
553 |
down 51% |
99% |
West Heath Ramsdell Pumping Station
Storm discharge at pumping station
- Company site name
- West Heath (Charter Alley) SPS
- EA ID / permit
- TWL00437 · NPSWQD001561
- Outlet location
- SU5936058370 (OS grid reference) · View on Apple Maps
- WFD catchment
- Bow Brook (Pamber End to Bramley) (GB106039017160)
- 2024 spills / hours
- 99 / 1,802
- Long-term average
- 50.5 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - GW inundation
- Monitor below 90%
- Comms failure / issue · Resolved - Sep
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 547 hours spilling →
|
Tributary of Bow Brook |
38 |
547 |
down 62% |
88% |
Fleet STW
Storm tank at sewage works
- Sewage works
- Fleet
- Company site name
- Fleet STW
- EA ID / permit
- TWL00186 · CTCR.1835
- Outlet location
- SU8050056500 (OS grid reference) · View on Apple Maps
- WFD catchment
- Fleet Brook (GB106039017120)
- 2024 spills / hours
- 103 / 1,485
- Long-term average
- 77.0 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 525 hours spilling →
|
Fleet Brook |
39 |
525 |
down 62% |
99% |
Brickendon WwTW
Storm tank at sewage works
- Sewage works
- Brickendon
- Company site name
- Brickendon STW
- EA ID / permit
- TWL00055 · CLCP.0173
- Outlet location
- TL3236008430 (OS grid reference) · View on Apple Maps
- WFD catchment
- Lee (from Luton Hoo Lakes to Hertford) (GB106038033392)
- 2024 spills / hours
- 95 / 1,253
- Long-term average
- 69.7 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 518 hours spilling →
|
Harmonds Brook West Arm |
46 |
518 |
down 52% |
100% |
Reigate (Earlswood) WwTW
Storm tank at sewage works
- Sewage works
- Reigate
- Company site name
- Earlswood STW
- EA ID / permit
- TWL00347 · CASM.0827
- Outlet location
- TQ2724048010 (OS grid reference) · View on Apple Maps
- WFD catchment
- Mole - Horley to Dorking (GB106039017625)
- 2024 spills / hours
- 83 / 1,077
- Long-term average
- 75.6 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 503 hours spilling →
|
Earlswood Brook |
48 |
503 |
down 42% |
99% |
North Weald WwTW
Storm tank at sewage works
- Sewage works
- North Weald
- Company site name
- North Weald STW
- EA ID / permit
- TWL00313 · CTCR.2136
- Outlet location
- TL4956004730 (OS grid reference) · View on Apple Maps
- WFD catchment
- Cripsey Brook (GB106037033481)
- 2024 spills / hours
- 72 / 920
- Long-term average
- 55.6 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 474 hours spilling →
|
North Weald Brook |
46 |
474 |
down 36% |
100% |
Chertsey STW
Storm tank at sewage works
- Sewage works
- Chertsey
- Company site name
- Chertsey STW
- EA ID / permit
- TWL00088 · CTCR.1977
- Outlet location
- TQ0170068100 (OS grid reference) · View on Apple Maps
- WFD catchment
- Chertsey Bourne (Virginia Water to Chertsey) (GB106039017070)
- 2024 spills / hours
- 104 / 1,914
- Long-term average
- 49.6 spills a year (monitored since 2019)
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 472 hours spilling →
|
Bourne (North) |
27 |
472 |
down 74% |
97% |
Hanwell WwTW
Inlet overflow at sewage works (with treatment)
- Sewage works
- Hanwell
- Company site name
- Hanwell STW
- EA ID / permit
- TWL00214 · TEMP.2648
- Outlet location
- SP4378043640 (OS grid reference) · View on Apple Maps
- WFD catchment
- Hanwell Brook (GB106039037340)
- Treatment
- Reed bed
- 2024 spills / hours
- 152 / 2,719
- Long-term average
- 59.6 spills a year (monitored since 2019)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 471 hours spilling →
|
Hanwell Brook |
27 |
471 |
down 82% |
100% |
Horton-Cum-Studley WwTW
Inlet overflow at sewage works
- Sewage works
- Horton Cum Studley
- Company site name
- Horton-Cum-Studley STW
- EA ID / permit
- TWL00238 · CNTD.0008
- Outlet location
- SP6056011990 (OS grid reference) · View on Apple Maps
- WFD catchment
- Holton Brook and tributaries (GB106039030360)
- 2024 spills / hours
- 76 / 1,090
- Long-term average
- 63.0 spills a year (monitored since 2018)
- High-spill reason (company)
- Not asset maintenance - Hydraulic capacity
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 462 hours spilling →
|
Danes Brook |
38 |
462 |
down 50% |
99% |
Weston (Herts) WwTW
Storm tank at sewage works
- Sewage works
- Weston
- Company site name
- Weston STW
- EA ID / permit
- TWL00441 · CLCR.0097
- Outlet location
- TL2755029610 (OS grid reference) · View on Apple Maps
- WFD catchment
- Beane (Source to Stevenage Brook) (GB106038040110)
- 2024 spills / hours
- 86 / 1,201
- Long-term average
- 54.5 spills a year (monitored since 2018)
- High-spill reason (company)
- Not asset maintenance - Hydraulic capacity
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 461 hours spilling →
|
Weston Tributary |
39 |
461 |
down 55% |
100% |
Thame Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Thame
- Company site name
- Thame STW
- EA ID / permit
- TWL00409 · CTCR.1158
- Outlet location
- SP7115006830 (OS grid reference) · View on Apple Maps
- WFD catchment
- Scotsgrove Brook (upstream Kingsey Cuttle Brook) (GB106039030270)
- 2024 spills / hours
- 105 / 1,609
- Long-term average
- 36.0 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 461 hours spilling →
|
Lashlake Stream |
30 |
461 |
down 71% |
100% |
Maple Lodge STW, Bucks
Storm tank at sewage works
- Sewage works
- Maple Lodge Bucks
- Company site name
- Maple Lodge STW
- EA ID / permit
- TWL00290 · CNTD.0071
- Outlet location
- TQ0412092370 (OS grid reference) · View on Apple Maps
- WFD catchment
- Colne (Confluence with Chess to River Thames) (GB106039023090)
- 2024 spills / hours
- 124 / 1,916
- Long-term average
- 54.3 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 455 hours spilling →
|
River Colne |
35 |
455 |
down 72% |
100% |
Cropredy STW
Storm tank at sewage works
- Sewage works
- Cropredy
- Company site name
- Cropredy STW
- EA ID / permit
- TWL00122 · CTCR.1851
- Outlet location
- SP4694046210 (OS grid reference) · View on Apple Maps
- WFD catchment
- Cherwell (Cropredy to Nell Bridge) (GB106039037310)
- 2024 spills / hours
- 147 / 1,725
- Long-term average
- 78.4 spills a year (monitored since 2018)
- High-spill reason (company)
- Not asset maintenance - Hydraulic capacity
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 453 hours spilling →
|
River Cherwell |
35 |
453 |
down 76% |
100% |
Bicester Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Bicester
- Company site name
- Bicester STW
- EA ID / permit
- TWL00038 · CNTD.0023
- Outlet location
- SP5798021310 (OS grid reference) · View on Apple Maps
- WFD catchment
- Langford Brook (Bicester to Ray inc Gagle Brook) (GB106039030140)
- 2024 spills / hours
- 89 / 1,171
- Long-term average
- 57.4 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - SW Infiltration
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 450 hours spilling →
|
Langford Brook |
34 |
450 |
down 62% |
100% |
Farnborough (Warks) WwTW
Storm tank at sewage works
- Sewage works
- Farnborough
- Company site name
- Farnborough STW
- EA ID / permit
- TWL00181 · CSSC.1369
- Outlet location
- SP4281049460 (OS grid reference) · View on Apple Maps
- WFD catchment
- Hanwell Brook (GB106039037340)
- 2024 spills / hours
- 160 / 2,488
- Long-term average
- 100.6 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 434 hours spilling →
|
Tributary of Hanwell Brook |
40 |
434 |
down 75% |
100% |
Ripley Wastewater Treatment Works
Storm tank at sewage works (with treatment)
- Sewage works
- Ripley
- Company site name
- Ripley STW
- EA ID / permit
- TWL00348 · CTCR.2150
- Outlet location
- TQ0449057320 (OS grid reference) · View on Apple Maps
- WFD catchment
- Wey (Shalford to River Thames confluence at Weybridge) (GB106039017630)
- Treatment
- Reed bed
- 2024 spills / hours
- 43 / 381
- Long-term average
- 23.3 spills a year (monitored since 2020)
- High-spill reason (company)
- Not asset maintenance - Hydraulic capacity
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 428 hours spilling →
|
River Wey/Ockham Mill Stream |
37 |
428 |
down 14% |
94% |
Weybridge WwTW
Storm tank at sewage works
- Sewage works
- Weybridge
- Company site name
- Weybridge STW
- EA ID / permit
- TWL00445 · CTCR.0944
- Outlet location
- TQ0677063140 (OS grid reference) · View on Apple Maps
- WFD catchment
- Wey (Shalford to River Thames confluence at Weybridge) (GB106039017630)
- 2024 spills / hours
- 81 / 1,106
- Long-term average
- 54.6 spills a year (monitored since 2019)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 426 hours spilling →
|
River Wey |
28 |
426 |
down 65% |
100% |
Takeley
Storm tank at sewage works
- Sewage works
- Takeley
- Company site name
- Takeley STW
- EA ID / permit
- TWL00404 · TEMP.2948
- Outlet location
- TL5497021090 (OS grid reference) · View on Apple Maps
- WFD catchment
- Pincey Brook (GB106038033380)
- 2024 spills / hours
- 100 / 1,358
- Long-term average
- 64.3 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 425 hours spilling →
|
Pincey Brook |
40 |
425 |
down 60% |
94% |
Knights Lane
Storm discharge at pumping station
- Company site name
- Knights Lane (Ball Hill) SPS
- EA ID / permit
- TWL00260 · TEMP.1280
- Outlet location
- SU4230063600 (OS grid reference) · View on Apple Maps
- WFD catchment
- Enborne (Source to downstream A34) (GB106039017280)
- 2024 spills / hours
- 59 / 989
- Long-term average
- 38.6 spills a year (monitored since 2018)
- High-spill reason (company)
- Not asset maintenance - Hydraulic capacity
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 425 hours spilling →
|
Enbourn |
30 |
425 |
down 49% |
100% |
Little Compton STW
Storm tank at sewage works
- Sewage works
- Little Compton
- Company site name
- Little Compton STW
- EA ID / permit
- TWL00268 · CSSC.1402
- Outlet location
- SP2525030440 (OS grid reference) · View on Apple Maps
- WFD catchment
- Little Compton Brook and tributaries (Source to Evenlode) (GB106039037390)
- 2024 spills / hours
- 69 / 931
- Long-term average
- 45.1 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 415 hours spilling →
|
Little Compton Stream |
30 |
415 |
down 57% |
100% |
Sherfield-on-Loddon WwTW
Storm tank at sewage works
- Sewage works
- Sherfield On Loddon
- Company site name
- Sherfield-on-Loddon STW
- EA ID / permit
- TWL00366 · TEMP.2891
- Outlet location
- SU6774058620 (OS grid reference) · View on Apple Maps
- WFD catchment
- Bow Brook (Bramley to Sherfield Green) (GB106039017140)
- 2024 spills / hours
- 60 / 770
- Long-term average
- 34.5 spills a year (monitored since 2018)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 405 hours spilling →
|
Bow Brook |
26 |
405 |
down 57% |
99% |
Carterton WwTW
Storm tank at sewage works
- Sewage works
- Carterton
- Company site name
- Carterton STW
- EA ID / permit
- TWL00074 · CATM.3521
- Outlet location
- SP2800004860 (OS grid reference) · View on Apple Maps
- WFD catchment
- Shill Brook and Tributaries (GB106039030280)
- 2024 spills / hours
- 57 / 1,058
- Long-term average
- 38.4 spills a year (monitored since 2018)
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 404 hours spilling →
|
Shill Brook |
25 |
404 |
down 56% |
100% |
Basingstoke WwTW
Storm tank at sewage works (with treatment)
- Sewage works
- Basingstoke
- Company site name
- Basingstoke STW
- EA ID / permit
- TWL00028 · CTCR.0875
- Outlet location
- SU6780055250 (OS grid reference) · View on Apple Maps
- WFD catchment
- Loddon (Basingstoke to River Lyde confluence at Hartley Wespall) (GB106039017080)
- Treatment
- Reed bed
- 2024 spills / hours
- 82 / 938
- Long-term average
- 24.9 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 397 hours spilling →
|
River Loddon |
40 |
397 |
down 51% |
100% |
Kingston Bagpuize WwTW
Storm tank at sewage works
- Sewage works
- Kingston Bagpuize
- Company site name
- Kingston Bagpuize STW
- EA ID / permit
- TWL00257 · CTCR.2011
- Outlet location
- SU4035097530 (OS grid reference) · View on Apple Maps
- WFD catchment
- Ock and tributaries (Land Brook confluence to Thames) (GB106039023430)
- 2024 spills / hours
- 143 / 2,287
- Long-term average
- 45.5 spills a year (monitored since 2020)
- High-spill reason (company)
- Not Applicable - Ongoing investigation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 389 hours spilling →
|
Bagpuize Brook |
32 |
389 |
down 78% |
100% |
Hook Norton STW
Storm tank at sewage works
- Sewage works
- Hook Norton
- Company site name
- Hook Norton STW
- EA ID / permit
- TWL00234 · CTCR.1796
- Outlet location
- SP3690033450 (OS grid reference) · View on Apple Maps
- WFD catchment
- Hook Norton Brook (Source to Swere) (GB106039037210)
- 2024 spills / hours
- 42 / 560
- Long-term average
- 18.3 spills a year (monitored since 2018)
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 381 hours spilling →
|
Hook Nortonbrook |
23 |
381 |
down 45% |
100% |
Newbury (New)
Storm tank at sewage works
- Sewage works
- Newbury
- Company site name
- Newbury STW
- EA ID / permit
- TWL00309 · TEMP.2805
- Outlet location
- SU4990066700 (OS grid reference) · View on Apple Maps
- WFD catchment
- Kennet (Lambourn confluence to Enborne confluence) (GB106039017420)
- 2024 spills / hours
- 94 / 1,251
- Long-term average
- 45.4 spills a year (monitored since 2019)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 381 hours spilling →
|
Kennet |
28 |
381 |
down 70% |
100% |
Hatchetts SPS
Storm discharge at pumping station
- Company site name
- Hatchetts (Cricklade) SPS
- EA ID / permit
- TWL00600 · EPRFB3198RS
- Outlet location
- SU1067093870 (OS grid reference) · View on Apple Maps
- WFD catchment
- Thames (Churn to Coln) (GB106039022990)
- 2024 spills / hours
- 56 / 698
- Long-term average
- 40.0 spills a year (monitored since 2023)
- High-spill reason (company)
- Not asset maintenance - Hydraulic capacity
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 378 hours spilling →
|
Tributary of the River Thames |
33 |
378 |
down 41% |
100% |
Culham Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Culham
- Company site name
- Culham STW
- EA ID / permit
- TWL00147 · TEMP.2511
- Outlet location
- SU5397095530 (OS grid reference) · View on Apple Maps
- WFD catchment
- Thames (Evenlode to Thame) (GB106039030334)
- 2024 spills / hours
- 78 / 1,159
- Long-term average
- 25.3 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 378 hours spilling →
|
Clifton Hampden Ditch |
38 |
378 |
down 51% |
100% |
Broadwell
Storm tank at sewage works
- Sewage works
- Broadwell
- Company site name
- Broadwell STW
- EA ID / permit
- TWL00057 · TEMP.2418
- Outlet location
- SP2220027500 (OS grid reference) · View on Apple Maps
- WFD catchment
- Evenlode (Compton Bk to Bledington Bk) and 4 Shires (GB106039037410)
- 2024 spills / hours
- 58 / 756
- Long-term average
- 39.0 spills a year (monitored since 2018)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 367 hours spilling →
|
Evenlode |
27 |
367 |
down 53% |
100% |
New Storm Tanks at Cascade Road
Overflow on sewer network
- Company site name
- Storm tanks,cascade rd,buckhurst hill
- EA ID / permit
- TWL00805 · CEXR.0038
- Outlet location
- TQ4190093600 (OS grid reference) · View on Apple Maps
- WFD catchment
- Lower Roding (Loughton to Thames) (GB106037028181)
- 2024 spills / hours
- 57 / 444
- Long-term average
- 45.0 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - Partial / no capacity due to blockage or restriction (e.g. roots / grid) - maintenance issue
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 367 hours spilling →
|
Tributary Ofthe River Roding |
56 |
367 |
down 2% |
98% |
Crawley No. 2 WwTW
Storm tank at sewage works
- Sewage works
- Crawley
- Company site name
- Crawley STW
- EA ID / permit
- TWL00118 · CNTM.1402
- Outlet location
- TQ2901040280 (OS grid reference) · View on Apple Maps
- WFD catchment
- Tilgate Brook and Gatwick Stream at Crawley (GB106039017500)
- 2024 spills / hours
- 46 / 533
- Long-term average
- 41.6 spills a year (monitored since 2019)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Monitor below 90%
- Installation set-up/design issue · Not Applicable - Ongoing investigation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 363 hours spilling →
|
Tributary of Gatwick Stream |
33 |
363 |
down 28% |
88% |
Chadlington WwTW
Storm tank at sewage works
- Sewage works
- Chadlington
- Company site name
- Chadlington STW
- EA ID / permit
- TWL00079 · CNTD.0064
- Outlet location
- SP3271021190 (OS grid reference) · View on Apple Maps
- WFD catchment
- Evenlode (Bledington to Glyme confluence) (GB106039029960)
- 2024 spills / hours
- 84 / 1,312
- Long-term average
- 42.9 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - SW Infiltration
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 362 hours spilling →
|
Chadlington Stream |
35 |
362 |
down 58% |
100% |
Benson STW
Storm tank at sewage works
- Sewage works
- Benson
- Company site name
- Benson STW
- EA ID / permit
- TWL00034 · CATM.3524
- Outlet location
- SU6202090510 (OS grid reference) · View on Apple Maps
- WFD catchment
- Thames Wallingford to Caversham (GB106039030331)
- Bathing water
- Wallingford Beach, River Thames
- 2024 spills / hours
- 101 / 1,771
- Long-term average
- 30.9 spills a year (monitored since 2018)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 361 hours spilling →
|
Howbery Ditch |
18 |
361 |
down 82% |
97% |
Wardington Sewage Pumping Station
Storm discharge at pumping station
- Company site name
- Wardington SPS
- EA ID / permit
- TWL00427 · CTCR.1833
- Outlet location
- SP4913047010 (OS grid reference) · View on Apple Maps
- WFD catchment
- Cherwell (Ashby Brook to Cropredy) (GB106039037350)
- 2024 spills / hours
- 124 / 1,708
- Long-term average
- 74.7 spills a year (monitored since 2020)
- High-spill reason (company)
- Performance - SW Infiltration
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 358 hours spilling →
|
Trib of River Cherwell |
55 |
358 |
down 56% |
99% |
Combe Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Combe
- Company site name
- Combe STW
- EA ID / permit
- TWL00110 · CSSC.1091
- Outlet location
- SP4065015580 (OS grid reference) · View on Apple Maps
- WFD catchment
- Evenlode (Bledington to Glyme confluence) (GB106039029960)
- 2024 spills / hours
- 130 / 2,431
- Long-term average
- 59.9 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 357 hours spilling →
|
Evenlode |
30 |
357 |
down 77% |
100% |
Byfield Wastewater Treatment Works
Storm tank at sewage works (with treatment)
- Sewage works
- Byfield
- Company site name
- Byfield STW
- EA ID / permit
- TWL00067 · CTCR.1776
- Outlet location
- SP5236052560 (OS grid reference) · View on Apple Maps
- WFD catchment
- Cherwell (Source to Trafford Bridge) (GB106039042650)
- Treatment
- Reed bed
- 2024 spills / hours
- 31 / 558
- Long-term average
- 33.8 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 355 hours spilling →
|
Byfield Brook |
36 |
355 |
up 16% |
100% |
Bloxham Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Bloxham
- Company site name
- Bloxham STW
- EA ID / permit
- TWL00045 · CSSC.2458
- Outlet location
- SP4380035720 (OS grid reference) · View on Apple Maps
- WFD catchment
- Bloxham Brook (Source to Sor Brook) (GB106039037240)
- 2024 spills / hours
- 71 / 1,124
- Long-term average
- 80.8 spills a year (monitored since 2018)
- Investigation
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 349 hours spilling →
|
Bloxham Brook |
28 |
349 |
down 61% |
100% |
Highworth WwTW
Storm tank at sewage works
- Sewage works
- Highworth
- Company site name
- Highworth STW
- EA ID / permit
- TWL00227 · CNTD.0075
- Outlet location
- SU1979093770 (OS grid reference) · View on Apple Maps
- WFD catchment
- Westrop Brook (GB106039023711)
- 2024 spills / hours
- 66 / 1,010
- Long-term average
- 42.5 spills a year (monitored since 2018)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 341 hours spilling →
|
Westrop Brook |
27 |
341 |
down 59% |
100% |
Didcot Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Didcot
- Company site name
- Didcot STW
- EA ID / permit
- TWL00155 · CATM.3651
- Outlet location
- SU5205091400 (OS grid reference) · View on Apple Maps
- WFD catchment
- Moor Ditch and Ladygrove Ditch (GB106039023630)
- 2024 spills / hours
- 94 / 1,469
- Long-term average
- 55.0 spills a year (monitored since 2018)
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 339 hours spilling →
|
Moor Ditch |
26 |
339 |
down 72% |
100% |
Windsor
Storm tank at sewage works
- Sewage works
- Windsor
- Company site name
- Windsor STW
- EA ID / permit
- TWL00452 · TEMP.3014
- Outlet location
- SU9970075001 (OS grid reference) · View on Apple Maps
- WFD catchment
- Thames (Cookham to Egham) (GB106039023231)
- 2024 spills / hours
- 133 / 1,735
- Long-term average
- 75.9 spills a year (monitored since 2019)
- High-spill reason (company)
- Not asset maintenance - Hydraulic capacity
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 333 hours spilling →
|
Thames |
34 |
333 |
down 74% |
95% |