Markyate Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Markyate
- Company site name
- Markyate STW
- EA ID / permit
- TWL00292 · CSSC.8549
- Outlet location
- TL0749015410 (OS grid reference) · View on Apple Maps
- WFD catchment
- Ver (GB106039029920)
- 2024 spills / hours
- 187 / 3,383
- Long-term average
- 71.0 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 3,531 hours spilling →
|
River Ver |
155 |
3,531 |
down 17% |
97% |
Stewkley Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Stewkley
- Company site name
- Stewkley STW
- EA ID / permit
- TWL00391 · CSSC.2368
- Outlet location
- SP8498024860 (OS grid reference) · View on Apple Maps
- WFD catchment
- Hardwick Brook (Source to Thame) (GB106039030430)
- 2024 spills / hours
- 217 / 4,482
- Long-term average
- 138.8 spills a year (monitored since 2020)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 3,069 hours spilling →
|
Hardwick Brook |
143 |
3,069 |
down 34% |
100% |
South Moreton
Storm tank at sewage works
- Sewage works
- South Moreton
- Company site name
- South Moreton STW
- EA ID / permit
- TWL00378 · TEMP.2900
- Outlet location
- SU5650088301 (OS grid reference) · View on Apple Maps
- WFD catchment
- Mill Brook and Bradfords Brook system, Wallingford (GB106039023600)
- 2024 spills / hours
- 261 / 5,353
- Long-term average
- 124.0 spills a year (monitored since 2020)
- 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 2,721 hours spilling →
|
Mill Brook |
137 |
2,721 |
down 48% |
99% |
Winterbourne WwTW
Storm tank at sewage works
- Sewage works
- Winterbourne
- Company site name
- Winterbourne STW
- EA ID / permit
- TWL00454 · CTCR.1317
- Outlet location
- SU4555072080 (OS grid reference) · View on Apple Maps
- WFD catchment
- Winterbourne (GB106039023210)
- 2024 spills / hours
- 219 / 5,062
- Long-term average
- 69.5 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 2,635 hours spilling →
|
Winterbourne Stream |
116 |
2,635 |
down 47% |
100% |
Fairford STW
Storm tank at sewage works
- Sewage works
- Fairford
- Company site name
- Fairford STW
- EA ID / permit
- TWL00178 · CATM.3518
- Outlet location
- SP1560000300 (OS grid reference) · View on Apple Maps
- WFD catchment
- Coln (from Coln Rogers) and Thames (Coln to Leach) (GB106039029992)
- 2024 spills / hours
- 202 / 4,332
- Long-term average
- 111.1 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 2,235 hours spilling →
|
River Coln |
107 |
2,235 |
down 47% |
100% |
Standlake
Storm tank at sewage works
- Sewage works
- Standlake
- Company site name
- Standlake STW
- EA ID / permit
- TWL00385 · TEMP.2906
- Outlet location
- SP4040002301 (OS grid reference) · View on Apple Maps
- WFD catchment
- Windrush and tributaries (Little Rissington to Thames) (GB106039030440)
- 2024 spills / hours
- 180 / 3,968
- Long-term average
- 59.6 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 2,214 hours spilling →
|
Windrush |
98 |
2,214 |
down 46% |
100% |
East Shefford WwTW
Storm tank at sewage works
- Sewage works
- East Shefford
- Company site name
- East Shefford STW
- EA ID / permit
- TWL00167 · CNTD.0032
- Outlet location
- SU3937074490 (OS grid reference) · View on Apple Maps
- WFD catchment
- Lambourn (Source to Newbury) (GB106039023220)
- 2024 spills / hours
- 35 / 541
- Long-term average
- 47.0 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 2,207 hours spilling →
|
River Lambourn |
102 |
2,207 |
up 191% |
100% |
Cirencester WwTW
Inlet overflow at sewage works (with treatment)
- Sewage works
- Cirencester
- Company site name
- Cirencester STW
- EA ID / permit
- TWL00102 · CTCR.1750
- Outlet location
- SU0358096790 (OS grid reference) · View on Apple Maps
- WFD catchment
- Cerney Wick Brook (source to Thames) (GB106039023800)
- Treatment
- Reed bed
- 2024 spills / hours
- 236 / 4,460
- Long-term average
- 125.5 spills a year (monitored since 2020)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 2,067 hours spilling →
|
Shorncote Ditch |
125 |
2,067 |
down 47% |
100% |
Sevenhampton Village WwTW
Inlet overflow at sewage works
- Sewage works
- Sevenhampton Village
- Company site name
- Sevenhampton STW
- EA ID / permit
- TWL00362 · CSSC.1425
- Outlet location
- SU2092090050 (OS grid reference) · View on Apple Maps
- WFD catchment
- Cole (Acorn Bridge to Bower Bridge) (GB106039022930)
- 2024 spills / hours
- 135 / 2,716
- Long-term average
- 76.6 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 2,055 hours spilling →
|
Tributary of the River Cole |
99 |
2,055 |
down 27% |
100% |
Gerrards Cross
Storm tank at sewage works
- Sewage works
- Gerrards Cross
- Company site name
- Gerrards Cross STW
- EA ID / permit
- TWL00196 · TEMP.2613
- Outlet location
- TQ0190087700 (OS grid reference) · View on Apple Maps
- WFD catchment
- Misbourne (GB106039029830)
- 2024 spills / hours
- 144 / 2,838
- Long-term average
- 92.5 spills a year (monitored since 2020)
- 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 1,605 hours spilling →
|
Misbourne |
88 |
1,605 |
down 39% |
100% |
Marlborough WwTW
Storm tank at sewage works
- Sewage works
- Marlborough
- Company site name
- Marlborough STW
- EA ID / permit
- TWL00293 · TEMP.2763
- Outlet location
- SU2012069200 (OS grid reference) · View on Apple Maps
- WFD catchment
- Middle Kennet (Marlborough to Hungerford) (GB106039023173)
- 2024 spills / hours
- 172 / 2,786
- Long-term average
- 90.0 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 1,557 hours spilling →
|
Kennet |
96 |
1,557 |
down 44% |
100% |
Ampney St Peter WwTW
Storm tank at sewage works
- Sewage works
- Ampney St Peter
- Company site name
- Ampney St Peter STW
- EA ID / permit
- TWL00010 · CSSC.2452
- Outlet location
- SP0836000770 (OS grid reference) · View on Apple Maps
- WFD catchment
- Ampney and Poulton Brooks (Source to Thames) (GB106039030300)
- 2024 spills / hours
- 147 / 3,103
- Long-term average
- 92.3 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 1,436 hours spilling →
|
Ampney Brook |
68 |
1,436 |
down 54% |
93% |
Cranleigh STW, Cranleigh, Surrey
Storm tank at sewage works
- Sewage works
- Cranleigh Cranleigh Surrey
- Company site name
- Cranleigh STW
- EA ID / permit
- TWL00117 · CTCR.1838
- Outlet location
- TQ0403039250 (OS grid reference) · View on Apple Maps
- WFD catchment
- Cranleigh Waters (GB106039017810)
- 2024 spills / hours
- 103 / 1,565
- Long-term average
- 50.9 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
- No investigation activity in reporting period
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 1,436 hours spilling →
|
Cranleigh Waters |
80 |
1,436 |
down 22% |
86% |
Little Milton WwTW
Storm tank at sewage works
- Sewage works
- Little Milton
- Company site name
- Little Milton STW
- EA ID / permit
- TWL00271 · CSSC.1403
- Outlet location
- SP6210000560 (OS grid reference) · View on Apple Maps
- WFD catchment
- Thame (Scotsgrove Brook to Thames) (GB106039030240)
- 2024 spills / hours
- 168 / 3,545
- Long-term average
- 60.4 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 1,311 hours spilling →
|
Gainsbridge Brook |
64 |
1,311 |
down 62% |
98% |
Compton Sewage Treatment Works
Storm tank at sewage works
- Sewage works
- Compton
- Company site name
- Compton STW
- EA ID / permit
- TWL00112 · CATM.3132
- Outlet location
- SU5260079000 (OS grid reference) · View on Apple Maps
- WFD catchment
- Pang (GB106039023300)
- 2024 spills / hours
- 52 / 1,018
- Long-term average
- 29.8 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 1,283 hours spilling →
|
River Pang |
62 |
1,283 |
up 19% |
100% |
Church Hanborough WwTW
Storm tank at sewage works
- Sewage works
- Church Hanborough
- Company site name
- Church Hanborough STW
- EA ID / permit
- TWL00098 · CSSC.5783
- Outlet location
- SP4223012930 (OS grid reference) · View on Apple Maps
- WFD catchment
- Evenlode (Glyme to Thames) (GB106039029880)
- 2024 spills / hours
- 158 / 2,027
- Long-term average
- 83.5 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 1,236 hours spilling →
|
Hanborough Stream |
88 |
1,236 |
down 44% |
100% |
Storm Sewage Irrigation Area
Storm discharge at pumping station
- Company site name
- Primrose Court (Moreton-in-Marsh) SPS
- EA ID / permit
- TWL00726 · CTCR.2093
- Outlet location
- SP2090032200 (OS grid reference) · View on Apple Maps
- WFD catchment
- Evenlode (Source to Four Shires S) and Longborough Stream (GB106039037420)
- 2024 spills / hours
- 138 / 2,056
- Long-term average
- 79.5 spills a year (monitored since 2020)
- 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 1,143 hours spilling →
|
Evenlode |
77 |
1,143 |
down 44% |
100% |
Andoversford WwTW
Storm tank at sewage works
- Sewage works
- Andoversford
- Company site name
- Andoversford STW
- EA ID / permit
- TWL00011 · CNTD.0001
- Outlet location
- SP0250019860 (OS grid reference) · View on Apple Maps
- WFD catchment
- Coln (Source to Coln Rogers) (GB106039029991)
- 2024 spills / hours
- 129 / 2,476
- Long-term average
- 81.7 spills a year (monitored since 2020)
- 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 1,138 hours spilling →
|
River Colne |
61 |
1,138 |
down 53% |
100% |
Wheatley STW
Storm tank at sewage works
- Sewage works
- Wheatley
- Company site name
- Wheatley STW
- EA ID / permit
- TWL00446 · CSSC.2332
- Outlet location
- SP6073005150 (OS grid reference) · View on Apple Maps
- WFD catchment
- Thame (Scotsgrove Brook to Thames) (GB106039030240)
- 2024 spills / hours
- 160 / 3,188
- Long-term average
- 91.6 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 1,125 hours spilling →
|
Wheatley Ditch |
76 |
1,125 |
down 53% |
100% |
Ironsbottom (Sidlow) WwTW
Inlet overflow at sewage works
- Sewage works
- Ironsbottom
- Company site name
- Ironsbottom STW
- EA ID / permit
- TWL00242 · TEMP.2691
- Outlet location
- TQ2502046480 (OS grid reference) · View on Apple Maps
- WFD catchment
- Mole - Horley to Dorking (GB106039017625)
- 2024 spills / hours
- 63 / 858
- Long-term average
- 24.7 spills a year (monitored since 2019)
- 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 1,095 hours spilling →
|
Tributary of River Mole |
70 |
1,095 |
up 11% |
100% |
Milton-under-Wychwood
Storm tank at sewage works
- Sewage works
- Milton Under Wychwood
- Company site name
- Milton-Under-Wychwood STW
- EA ID / permit
- TWL00303 · TEMP.2776
- Outlet location
- SP2740018401 (OS grid reference) · View on Apple Maps
- WFD catchment
- Littlestock Stream to tributary of Evenlode at Shipton (GB106039029910)
- 2024 spills / hours
- 152 / 2,657
- Long-term average
- 95.6 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 1,091 hours spilling →
|
Littlestock Brook |
67 |
1,091 |
down 56% |
100% |
Boddington WwTW
Storm tank at sewage works
- Sewage works
- Boddington
- Company site name
- Boddington STW
- EA ID / permit
- TWL00047 · CNTW.0359
- Outlet location
- SP4737052410 (OS grid reference) · View on Apple Maps
- WFD catchment
- Clayton and Wormleighton Brook, Source to Highfurlong Brook (GB106039037370)
- 2024 spills / hours
- 235 / 4,434
- Long-term average
- 105.6 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 1,080 hours spilling →
|
Boddington Canal Feeder |
74 |
1,080 |
down 69% |
100% |
Willingale WwTW
Storm tank at sewage works
- Sewage works
- Willingale
- Company site name
- Willingale STW
- EA ID / permit
- TWL00451 · CSSC.1456
- Outlet location
- TL5895007070 (OS grid reference) · View on Apple Maps
- WFD catchment
- Upper Roding (to Cripsey Brook) (GB106037033500)
- 2024 spills / hours
- 159 / 2,427
- Long-term average
- 82.0 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 1,078 hours spilling →
|
Trib of River Roding |
55 |
1,078 |
down 65% |
96% |
Burstow Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Burstow
- Company site name
- Burstow STW
- EA ID / permit
- TWL00065 · CASM.0095
- Outlet location
- TQ3039043850 (OS grid reference) · View on Apple Maps
- WFD catchment
- Burstow Stream (GB106039017520)
- 2024 spills / hours
- 133 / 1,758
- Long-term average
- 108.1 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 1,041 hours spilling →
|
Burstow Stream |
72 |
1,041 |
down 46% |
99% |
Bledington WwTW
Storm tank at sewage works
- Sewage works
- Bledington
- Company site name
- Bledington STW
- EA ID / permit
- TWL00042 · TEMP.2395
- Outlet location
- SP2507022820 (OS grid reference) · View on Apple Maps
- WFD catchment
- Evenlode (Bledington to Glyme confluence) (GB106039029960)
- 2024 spills / hours
- 114 / 2,248
- Long-term average
- 71.4 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 947 hours spilling →
|
Bledington Brook |
50 |
947 |
down 56% |
100% |
Shrivenham
Storm tank at sewage works
- Sewage works
- Shrivenham
- Company site name
- Shrivenham STW
- EA ID / permit
- TWL00368 · TEMP.2893
- Outlet location
- SU2460089801 (OS grid reference) · View on Apple Maps
- WFD catchment
- Tuckmill Brook and tributaries (GB106039022920)
- 2024 spills / hours
- 125 / 2,130
- Long-term average
- 46.6 spills a year (monitored since 2018)
- 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 946 hours spilling →
|
Tuckmill Brook |
56 |
946 |
down 55% |
100% |
South Leigh WwTW
Storm tank at sewage works
- Sewage works
- South Leigh
- Company site name
- South Leigh STW
- EA ID / permit
- TWL00377 · CNTD.0016
- Outlet location
- SP3947008440 (OS grid reference) · View on Apple Maps
- WFD catchment
- Chil and Limb Brooks (source to B4044) (GB106039030310)
- 2024 spills / hours
- 71 / 1,272
- Long-term average
- 83.9 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 927 hours spilling →
|
Limb Brook |
49 |
927 |
down 31% |
100% |
Bampton Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Bampton
- Company site name
- Bampton STW
- EA ID / permit
- TWL00024 · TEMP.2373
- Outlet location
- SP3230002750 (OS grid reference) · View on Apple Maps
- WFD catchment
- Shill Brook and Tributaries (GB106039030280)
- 2024 spills / hours
- 160 / 1,957
- Long-term average
- 76.8 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 926 hours spilling →
|
Shill Brook |
82 |
926 |
down 49% |
99% |
Selborne Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Selborne
- Company site name
- Selborne STW
- EA ID / permit
- TWL00361 · CTCR.0742
- Outlet location
- SU7458033780 (OS grid reference) · View on Apple Maps
- WFD catchment
- Oakhanger Stream (GB106039017710)
- 2024 spills / hours
- 119 / 2,366
- Long-term average
- 74.3 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 899 hours spilling →
|
Oakhanger Stream |
59 |
899 |
down 50% |
100% |
Eydon Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Eydon
- Company site name
- Eydon STW
- EA ID / permit
- TWL00177 · CSSC.1370
- Outlet location
- SP5451050190 (OS grid reference) · View on Apple Maps
- WFD catchment
- Ashby Brook (Source to Cherwell) (GB106039037360)
- 2024 spills / hours
- 131 / 2,192
- Long-term average
- 67.1 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 872 hours spilling →
|
Tributary of River Cherwell |
60 |
872 |
down 54% |
99% |
Kingsclere WwTW
Storm tank at sewage works
- Sewage works
- Kingsclere
- Company site name
- Kingsclere STW
- EA ID / permit
- TWL00256 · CSSC.2340
- Outlet location
- SU5313060860 (OS grid reference) · View on Apple Maps
- WFD catchment
- Kingsclere Brook (Source to Enborne) (GB106039017220)
- 2024 spills / hours
- 119 / 2,271
- Long-term average
- 80.6 spills a year (monitored since 2018)
- 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 852 hours spilling →
|
Kingsclere Brook |
49 |
852 |
down 59% |
100% |
Lee Street
Storm tank at sewage works
- Sewage works
- Lee Street
- Company site name
- Horley (Surrey) STW
- EA ID / permit
- TWL00264 · CTCR.1779
- Outlet location
- TQ2679043590 (OS grid reference) · View on Apple Maps
- WFD catchment
- Mole - Horley to Dorking (GB106039017625)
- 2024 spills / hours
- 91 / 1,444
- Long-term average
- 60.1 spills a year (monitored since 2018)
- High-spill reason (company)
- Performance - Asset configuration (e.g. PS/rising main/storm tanks)
- Monitor below 90%
- Installation set-up/design issue · Resolved - Dec
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 836 hours spilling →
|
Mole |
59 |
836 |
down 35% |
86% |
Crondall Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Crondall
- Company site name
- Crondall STW
- EA ID / permit
- TWL00120 · CSSC.2450
- Outlet location
- SU7955049530 (OS grid reference) · View on Apple Maps
- WFD catchment
- Hart (Crondall to Elvetham) (GB106039017090)
- 2024 spills / hours
- 81 / 1,311
- Long-term average
- 41.0 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 823 hours spilling →
|
River Hart |
58 |
823 |
down 28% |
100% |
Wanborough WwTW
Storm tank at sewage works
- Sewage works
- Wanborough
- Company site name
- Wanborough STW
- EA ID / permit
- TWL00422 · CSSC.2327
- Outlet location
- SU2016084500 (OS grid reference) · View on Apple Maps
- WFD catchment
- Liden Brook, Swindon (GB106039022860)
- 2024 spills / hours
- 150 / 2,859
- Long-term average
- 68.9 spills a year (monitored since 2018)
- 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 822 hours spilling →
|
Danes Brook |
68 |
822 |
down 55% |
100% |
Holmwood Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Holmwood
- Company site name
- Holmwood STW
- EA ID / permit
- TWL00231 · CTCR.1189
- Outlet location
- TQ1892044920 (OS grid reference) · View on Apple Maps
- WFD catchment
- Leigh Brook (GB106039017550)
- 2024 spills / hours
- 107 / 1,630
- Long-term average
- 99.0 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 820 hours spilling →
|
Holmwood Stream |
61 |
820 |
down 43% |
100% |
Charlton-on-Otmoor WwTW
Storm tank at sewage works
- Sewage works
- Charlton On Otmoor
- Company site name
- Charlton-on-Otmoor STW
- EA ID / permit
- TWL00085 · TEMP.2467
- Outlet location
- SP5688015920 (OS grid reference) · View on Apple Maps
- WFD catchment
- Oxon Ray (upstream A41 to Cherwell) including Otmoor (GB106039030090)
- 2024 spills / hours
- 120 / 2,005
- Long-term average
- 70.8 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 814 hours spilling →
|
Oxon Ray |
54 |
814 |
down 55% |
100% |
Bourton on the Water CSO
Storm tank at sewage works (with treatment)
- Sewage works
- Bourton On The Water
- Company site name
- Bourton-on-the-water
- EA ID / permit
- TWL00049 · CTCR.2036
- Outlet location
- SP1780018800andSP1762019070 (OS grid reference) · View on Apple Maps
- WFD catchment
- Windrush and tributaries (Little Rissington to Thames) and Chipping Norton Jurassic (GB106039030440 and GB40602G600300)
- Treatment
- Reed bed
- 2024 spills / hours
- 153 / 2,583
- Long-term average
- 71.9 spills a year (monitored since 2018)
- 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 791 hours spilling →
|
Windrush & Groundwater |
49 |
791 |
down 68% |
100% |
Leatherhead WwTW
Storm tank at sewage works
- Sewage works
- Leatherhead
- Company site name
- Leatherhead STW
- EA ID / permit
- TWL00262 · CTCR.1780
- Outlet location
- TQ1471058030 (OS grid reference) · View on Apple Maps
- WFD catchment
- Mole - Leatherhead to Hersham (GB106039017623)
- 2024 spills / hours
- 82 / 1,243
- Long-term average
- 67.9 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 787 hours spilling →
|
River Mole |
49 |
787 |
down 40% |
100% |
Silchester WwTW
Storm tank at sewage works (with treatment)
- Sewage works
- Silchester
- Company site name
- Silchester STW
- EA ID / permit
- TWL00370 · CNTW.0737
- Outlet location
- SU6230061000 (OS grid reference) · View on Apple Maps
- WFD catchment
- Silchester Brook (GB106039017190)
- Treatment
- Reed bed
- 2024 spills / hours
- 97 / 1,685
- Long-term average
- 71.8 spills a year (monitored since 2020)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 761 hours spilling →
|
Silchester Brook |
42 |
761 |
down 57% |
100% |
Washwater WwTW
Storm tank at sewage works
- Sewage works
- Washwater
- Company site name
- Wash Water STW
- EA ID / permit
- TWL00430 · TEMP.2994
- Outlet location
- SU4540062700 (OS grid reference) · View on Apple Maps
- WFD catchment
- Enborne (downstream A34 to Burghclere Brook) (GB106039017310)
- 2024 spills / hours
- 67 / 1,050
- Long-term average
- 60.8 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 736 hours spilling →
|
Pound Street Brook |
53 |
736 |
down 21% |
100% |
Stanton Harcourt WwTW
Storm tank at sewage works
- Sewage works
- Stanton Harcourt
- Company site name
- Stanton Harcourt STW
- EA ID / permit
- TWL00389 · CSSC.1439
- Outlet location
- SP4219006010 (OS grid reference) · View on Apple Maps
- WFD catchment
- Chil and Limb Brooks (source to B4044) (GB106039030310)
- 2024 spills / hours
- 123 / 2,157
- Long-term average
- 68.5 spills a year (monitored since 2018)
- 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 709 hours spilling →
|
Harcourt Brook |
42 |
709 |
down 66% |
100% |
Islip Wastewater Treatment Works
Storm tank at sewage works
- Sewage works
- Islip
- Company site name
- Islip STW
- EA ID / permit
- TWL00244 · CTCR.1313
- Outlet location
- SP5307013880 (OS grid reference) · View on Apple Maps
- WFD catchment
- Oxon Ray (upstream A41 to Cherwell) including Otmoor (GB106039030090)
- 2024 spills / hours
- 61 / 1,067
- Long-term average
- 34.5 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 697 hours spilling →
|
River Ray |
34 |
697 |
down 44% |
100% |
Weston-on-the-Green WwTW
Storm tank at sewage works
- Sewage works
- Weston On The Green
- Company site name
- Weston-on-the-Green STW
- EA ID / permit
- TWL00443 · CNTD.0054
- Outlet location
- SP5365017470 (OS grid reference) · View on Apple Maps
- WFD catchment
- Gallos Brook (GB106039030130)
- 2024 spills / hours
- 86 / 1,585
- Long-term average
- 33.4 spills a year (monitored since 2018)
- 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 696 hours spilling →
|
Gallos Brook |
42 |
696 |
down 51% |
100% |
Mortimer (Stratfield Mortimer) WwTW
Storm tank at sewage works
- Sewage works
- Mortimer
- Company site name
- Mortimer STW
- EA ID / permit
- TWL00306 · CNTW.0404
- Outlet location
- SU6746064500 (OS grid reference) · View on Apple Maps
- WFD catchment
- Foudry Brook (West End Brook to M4) (GB106039017380)
- 2024 spills / hours
- 63 / 674
- Long-term average
- 85.5 spills a year (monitored since 2018)
- 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 689 hours spilling →
|
Foudry Brook |
40 |
689 |
down 37% |
100% |
Abbess Roding WwTW
Inlet overflow at sewage works
- Sewage works
- Abbess Roding
- Company site name
- Abbess Roding STW
- EA ID / permit
- TWL00002 · CTCR.2034
- Outlet location
- TL5758011090 (OS grid reference) · View on Apple Maps
- WFD catchment
- Upper Roding (to Cripsey Brook) (GB106037033500)
- 2024 spills / hours
- 124 / 1,595
- Long-term average
- 85.0 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 683 hours spilling →
|
Coopers Brook |
64 |
683 |
down 48% |
100% |
Burghfield WwTW
Storm tank at sewage works
- Sewage works
- Burghfield
- Company site name
- Burghfield STW
- EA ID / permit
- TWL00064 · CNTD.0004
- Outlet location
- SU6592068570 (OS grid reference) · View on Apple Maps
- WFD catchment
- Clayhill Brook (GB106039023120)
- 2024 spills / hours
- 96 / 1,639
- Long-term average
- 91.1 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 655 hours spilling →
|
Clay Hill Brook |
34 |
655 |
down 65% |
100% |
Uffington
Storm tank at sewage works
- Sewage works
- Uffington
- Company site name
- Uffington STW
- EA ID / permit
- TWL00419 · TEMP.2979
- Outlet location
- SU3010089601 (OS grid reference) · View on Apple Maps
- WFD catchment
- Ock (to Cherbury Brook) (GB106039023400)
- 2024 spills / hours
- 101 / 1,079
- Long-term average
- 56.3 spills a year (monitored since 2018)
- 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 654 hours spilling →
|
Uffington Brook |
48 |
654 |
down 52% |
100% |
Stone Wastewater Treatment Works
Storm tank at sewage works (with treatment)
- Sewage works
- Stone
- Company site name
- Stone STW
- EA ID / permit
- TWL00392 · CSSC.2319
- Outlet location
- SP7813010620 (OS grid reference) · View on Apple Maps
- WFD catchment
- Scotsgrove Brook (upstream Kingsey Cuttle Brook) (GB106039030270)
- Treatment
- Reed bed
- 2024 spills / hours
- 157 / 2,689
- Long-term average
- 108.7 spills a year (monitored since 2020)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 653 hours spilling →
|
Scotsgrove Brook |
44 |
653 |
down 72% |
98% |
Cricklade WwTW
Inlet overflow at sewage works (with treatment)
- Sewage works
- Cricklade
- Company site name
- Cricklade STW
- EA ID / permit
- TWL00119 · CSSC.2470
- Outlet location
- SU1067093860 (OS grid reference) · View on Apple Maps
- WFD catchment
- Thames (Churn to Coln) (GB106039022990)
- Treatment
- Reed bed
- 2024 spills / hours
- 107 / 1,379
- Long-term average
- 76.7 spills a year (monitored since 2020)
- High-spill reason (company)
- Performance - GW inundation
- Investigation
- Env Act (SODRP) investigation ongoing
- Improvement
- No improvement action in reporting period
- Volume & pollution
- Estimate from 641 hours spilling →
|
Tributary of the River Thames |
59 |
641 |
down 45% |
100% |
Drayton STW
Storm tank at sewage works (with treatment)
- Sewage works
- Drayton
- Company site name
- Drayton STW
- EA ID / permit
- TWL00162 · CNTD.0030
- Outlet location
- SU4830093320 (OS grid reference) · View on Apple Maps
- WFD catchment
- Ginge Brook and Mill Brook (GB106039023660)
- Treatment
- Reed bed
- 2024 spills / hours
- 128 / 2,255
- Long-term average
- 72.5 spills a year (monitored since 2020)
- 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 639 hours spilling →
|
Ginge Brook |
47 |
639 |
down 63% |
100% |