Area of Outstanding Natural Beauty

Cotswolds - Live Sewage

Polluted by sewage 23,460 hours in 2026 - That's 2.72 years , monitoring offline 2,646 hours , potential overflows 56 hours so far..

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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Totals for Cotswolds in 2026

Sewage23,460 hours
Monitoring offline2,646 hours
Potential pollution56 hours
Storm overflows193

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Daily Data - when it rained, and when they spilled

Square = rainfall none → heavy
Drop = sewage minutes → all day
Potential pollution Monitoring offline
Jan - 8,125 hours , 30 potential
Feb - 13,681 hours , 26 potential
Mar - 1,063 hours , 52 offline
Apr - 6 hours , 277 offline
May - 24 hours , 201 offline
Jun - 14 hours , 55 offline
Jul - 0 hours , 47 offline
Aug - 85 hours , 246 offline
Sept - 46 hours , 448 offline
Oct - 407 hours , 200 offline
Nov - 2 hours , 236 offline
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Storm overflows in and around Cotswolds

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Wessex Water GREAT BADMINTON STORM TANK Luckington Brook 78 1,676h 6m -
Thames Water Primrose Court (Moreton-in-Marsh) SPS Evenlode 62 1,308h 30m -
Wessex Water TETBURY STORM TANK River Avon 58 1,291h 38m -
Thames Water Bourton-on-the-water Windrush 62 1,251h 45m -
Thames Water Milton-Under-Wychwood STW Littlestock Brook 63 1,237h 30 h
Wessex Water SALTFORD MEAD LANE STORM TANK River Avon 57 1,218h 19m -
Thames Water Bledington STW Bledington Brook 54 1,154h 45m -
Severn Trent Water CHERINGTON STW (SSTO) River Stour 53 1,033h 39m 18 h
Severn Trent Water BLOCKLEY (STW) Blockley Brook 50 1,023h 29m 56 h
Thames Water Andoversford STW River Colne 48 1,019h 30m 0 h
Wessex Water DIDMARTON STORM TANK River Avon 41 856h 35m -
Thames Water Chadlington STW Chadlington Stream 46 839h 45m 1 h
Thames Water Little Compton STW Little Compton Stream 42 731h 45m 10 h
Wessex Water BOX MILL LANE STORM TANK By Brook 49 729h 40m -
Severn Trent Water LAVERTON STW (CSO) River Isbourne 66 637h 27m -
Severn Trent Water CHIPPING CAMDEN STW (SSTO) Cam Brook 77 635h 46m 18 h
Thames Water Combe STW Evenlode 34 586h 15m -
Thames Water Broadwell STW Evenlode 34 550h -
Thames Water Chipping Norton STW Blue Brook 29 503h 15m 15 h
Wessex Water FRESHFORD STORM TANK Bristol Avon 35 493h 6m -
Wessex Water WESTWOOD STORM TANK River Frome 26 355h 12m -
Thames Water Burford STW River Windrush 22 332h 15m -
Severn Trent Water TEDDINGTON - A435 (CSO) Tirle Brook 57 317h 7m 72 h
Severn Trent Water KEMERTON - LOWER MILL FARM (CSO) Carrant Brook 47 309h 41m -
Severn Trent Water TODDINGTON STW (CSO) River Isbourne 41 301h 18m 0 h
Wessex Water LUCKINGTON STORM TANK Luckington Brook 18 292h 6m -
Wessex Water LONG DEAN INLET By Brook 42 283h 44m -
Severn Trent Water WINCHCOMBE (STW) River Isbourne 25 275h 43m -
Severn Trent Water WOOLSTONE STW (CSO) Tirle Brook 51 254h 43m 52 h
Severn Trent Water BANBURY - ORCHARD CLOSE (CSO) Sutton Brook 34 224h 25m 173 h
Severn Trent Water BROADWAY - CHELTENHAM ROAD (CSO) Badsey Brook 36 197h 46m 25 h
Wessex Water BOX MILL LANE By Brook 34 186h 14m -
Severn Trent Water BLOCKLEY – FIELD OFF DRAYCOTT ROAD (CSO) Blockley Brook 16 174h 29m -
Wessex Water BATHFORD OSTLING LANE River Avon 38 153h 42m -
Wessex Water Unknown Unknown 11 136h 4m -
Thames Water The Mill (Kingham) SPS Cornwell Brook 20 113h 30m -
Wessex Water WOTTON-UNDER-EDGE HACK MILL Dyers Brook 47 105h 16m -
Wessex Water BOX VALENS TERRACE By Brook 23 87h 10m -
Wessex Water FRESHFORD FIELDS OFF ROSEMARY LANE River Frome 31 86h 26m -
Thames Water Finstock STW River Evenlode 11 84h 30m 17 h
Wessex Water BRADFORD-ON-AVON STORM TANK River Avon 8 53h 22m -
Thames Water Charlbury STW Evenlode 8 47h 15m -
Wessex Water BURTON INLET Burton Brook 13 43h 17m -
Wessex Water TETBURY INLET River Avon 24 38h 21m -
Severn Trent Water TETBURY - AVENING STW (CSO) Nailsworth Stream 13 35h 13m 77 h
Wessex Water MIDFORD TUCKING MILL Midford Brook 20 31h 19m -
Wessex Water MONKTON COMBE MILL LANE Midford Brook 21 22h 38m -
Wessex Water SALTFORD O/S XX HIGH STREET River Avon 29 20h 22m -
Wessex Water SALTFORD SALTFORD HILL River Avon 10 17h 13m -
Thames Water Warmington STW Hanwell Brook 5 16h 30m -
Thames Water Moreton-in-marsh River Evenlode 2 15h 374 h
Wessex Water SALTFORD MEAD LANE River Avon Via Sws 1 9h 10m -
Wessex Water BOX RECREATION GROUND (ADJ TO) By Brook 15 8h 28m -
Wessex Water MONKTON COMBE SUMMER LANE Horsecombe Brook 13 8h 14m -
Wessex Water SHERSTON STORM TANK Avon 6 6h 28m -
Severn Trent Water STROUD - BATH RD IND EST (SDC 10) (CSO) Nailsworth Stream 13 3h 49m -
Wessex Water MALMESBURY DARK LANE / X FOXLEY LANE Sherston Avon 2 3h 46m 450 h
Wessex Water COLERNE STORM TANK By Brook 2 3h 32m -
Severn Trent Water NAILSWORTH - OLD MARKET (SDC 22) (CSO) Nailsworth Stream 9 3h 28m 1 h
Wessex Water XXXXX XXXXXXXX BARTON BRIDGE BARTON FARM (175M DS) River Avon 4 3h 6m -
Severn Trent Water UPPER TYSOE - SMARTS LANE (SSO) Wagtail Brook 2 3h 3m -
Thames Water Northleach STW River Leach 1 3h 11 h
Wessex Water BATHEASTON MILL HOUSE River Bristol Avon 4 2h 18m -
Wessex Water MARSHFIELD STORM TANK Doncombe Brook 1 2h 13m -
Wessex Water WINSLEY STORM TANK River Avon 1 1h 58m -
Wessex Water SHERSTON THE TARTARS River Avon 5 1h 56m 15 h
Wessex Water WOTTON-UNDER-EDGE WATER LANE Dyers Brook 7 1h 48m -
Wessex Water WOTTON-UNDER-EDGE OLD COACH YARD Dyers Brook 8 1h 44m -
Severn Trent Water CHARLTON KINGS - DOWDSWELL STORM (CSO) River Chelt 1 0h 55m 108 h
Wessex Water MIDFORD ADJ ABANDONED RAILWAY Midford Brook 1 0h 28m -
Thames Water Near Sezincote Lodge N/A 1 0h 12m 152 h
Severn Trent Water WORMINGTON STW (CSO) River Isbourne 1 0h 5m 108 h
Severn Trent Water ASHTON UNDER HILL STW (CSO) Carrant Brook 0 0h -
Thames Water Ratley STW Sor Brook 0 0h -
Wessex Water SHERSTON STORM TANK Avon 0 0h -
Severn Trent Water WITCOMBE - PILLCROFT CLOSE (CSO) Horsbere Brook 0 0h 98 h
Wessex Water ALDERTON INLET Luckington Brook 0 0h -
Wessex Water FRESHFORD NEW INN River Frome 0 0h -
Severn Trent Water KEMERTON - LOWER MILL FARM (CSO) Carrant Brook 0 0h -
Severn Trent Water CHARLTON KINGS - DOWDSWELL STORM (CSO) River Chelt 0 0h -
Wessex Water BOX VALENS TERRACE By Brook 0 0h -
Wessex Water BOX MILL LANE STORM TANK By Brook 0 0h -
Wessex Water LUCKINGTON STORM TANK Luckington Brook 0 0h -
Severn Trent Water BLOCKLEY (STW) Blockley Brook 0 0h -
Thames Water Primrose Court (Moreton-in-Marsh) SPS Evenlode 0 0h -
Wessex Water MIDFORD TUCKING MILL Midford Brook 0 0h -
Wessex Water FRESHFORD NEW INN River Frome 0 0h -
Severn Trent Water BUSSAGE - TOADSMOOR ROAD (SDC 38) (CSO) River Frome 0 0h -
Thames Water Moreton-in-marsh River Evenlode 0 0h -
Wessex Water COLERNE STORM TANK By Brook 0 0h -
Severn Trent Water WORMINGTON STW (CSO) River Isbourne 0 0h -
Wessex Water SALTFORD SALTFORD HILL River Avon 0 0h -
Severn Trent Water TEDDINGTON - A435 (CSO) Tirle Brook 0 0h -
Severn Trent Water NAILSWORTH - OLD MARKET (SDC 22) (CSO) Nailsworth Stream 0 0h -
Wessex Water SHERSTON THE TARTARS River Avon 0 0h -
Wessex Water WELLOW MILL HILL Wellow Brook 0 0h -
Wessex Water Unknown Unknown 0 0h 6 h
Wessex Water BRADFORD-ON-AVON CULVER STREET RECREATION PARK River Avon 0 0h -
Wessex Water BATHEASTON BATHEASTON GARDEN River Avon 0 0h -
Severn Trent Water STROUD - BATH ROAD (CSO) Nailsworth Stream 0 0h -
Wessex Water MARSHFIELD STORM TANK Doncombe Brook 0 0h -
Severn Trent Water BRIMSCOMBE - CARAVAN SITE(SDC 37) (CSO) River Frome 0 0h -
Thames Water Broadwell STW Evenlode 0 0h -
Wessex Water BURTON INLET Burton Brook 0 0h -
Wessex Water BRADFORD-ON-AVON CULVER STREET RECREATION PARK River Avon 0 0h -
Severn Trent Water PAINSWICK - STEPPING STONE LN (CSO) Painswick Stream 0 0h -
Severn Trent Water WINCHCOMBE - BROADWAY ROAD (CSO) River Isbourne 0 0h -
Severn Trent Water STROUD - BATH RD IND EST (SDC 10) (CSO) Nailsworth Stream 0 0h -
Wessex Water NORTH NIBLEY STORM TANK Doverte Brook 0 0h -
Wessex Water WESTWOOD STORM TANK River Frome 0 0h -
Wessex Water BATH FAIRFIELD AVENUE R/O NO XX Lam Brook Via Sws 0 0h -
Wessex Water MALMESBURY HARPERS LANE River Avon 0 0h -
Severn Trent Water SNOWSHILL (CSO) Badsey Brook 0 0h -
Wessex Water MALMESBURY DARK LANE / X FOXLEY LANE Sherston Avon 0 0h -
Wessex Water BATHEASTON MILL HOUSE River Bristol Avon 0 0h -
Wessex Water WELLOW INLET Wellow Brook 0 0h -
Severn Trent Water SAINTBURY - THE CROSS (CSO) Broadway Brook 0 0h -
Wessex Water SALTFORD O/S XX HIGH STREET River Avon 0 0h -
Wessex Water TETBURY SPRINGFIELDS River Avon 0 0h 3 h
Thames Water Chadlington STW Chadlington Stream 0 0h -
Severn Trent Water ASHTON UNDER HILL - CORNFIELD WAY (CSO) Carrant Brook 0 0h -
Thames Water Bledington STW Bledington Brook 0 0h -
Severn Trent Water CHIPPING CAMDEN STW (SSTO) Cam Brook 0 0h -
Thames Water Warmington STW Hanwell Brook 0 0h -
Severn Trent Water TODDINGTON STW (CSO) River Isbourne 0 0h -
Wessex Water XXXXX XXXXXXXX BARTON BRIDGE BARTON FARM (175M DS) River Avon 0 0h -
Severn Trent Water WINCHCOMBE - BROADWAY ROAD (CSO) River Isbourne 0 0h 108 h
Wessex Water TETBURY STORM TANK River Avon 0 0h -
Thames Water Combe STW Evenlode 0 0h -
Severn Trent Water MINCHINHAMPTON - RO SMALL HOUSE (CSO) Gatcombe Water 0 0h -
Wessex Water FRESHFORD STORM TANK Bristol Avon 0 0h -
Severn Trent Water WINCHCOMBE - VINEYARD STREET (CSO) River Isbourne 0 0h 102 h
Wessex Water WOTTON-UNDER-EDGE BRICKFIELDS Dyers Brook 0 0h 334 h
Wessex Water FRESHFORD FIELDS OFF ROSEMARY LANE River Frome 0 0h -
Severn Trent Water ASHTON UNDER HILL - CORNFIELD WAY (CSO) Carrant Brook 0 0h 92 h
Wessex Water LONG DEAN INLET By Brook 0 0h -
Severn Trent Water UPPER TYSOE - SMARTS LANE (SSO) Wagtail Brook 0 0h -
Thames Water Charlbury STW Evenlode 0 0h -
Wessex Water DIDMARTON STORM TANK River Avon 0 0h -
Severn Trent Water WINCHCOMBE (STW) River Isbourne 0 0h -
Thames Water Little Compton STW Little Compton Stream 0 0h -
Wessex Water WOTTON-UNDER-EDGE HACK MILL Dyers Brook 0 0h -
Wessex Water WELLOW INLET Wellow Brook 0 0h -
Thames Water Ratley STW Sor Brook 0 0h -
Wessex Water WOTTON-UNDER-EDGE OLD COACH YARD Dyers Brook 0 0h -
Severn Trent Water WINCHCOMBE - VINEYARD STREET (CSO) River Isbourne 0 0h -
Thames Water The Mill (Kingham) SPS Cornwell Brook 0 0h -
Wessex Water WINSLEY STORM TANK River Avon 0 0h -
Severn Trent Water LAVERTON STW (CSO) River Isbourne 0 0h -
Severn Trent Water STROUD - BATH ROAD (CSO) Nailsworth Stream 0 0h -
Thames Water Andoversford STW River Colne 0 0h -
Thames Water Finstock STW River Evenlode 0 0h -
Severn Trent Water KINGS STANLEY - RYEFORD RD SOUTH (CSO) River Frome 0 0h 1 h
Thames Water Chipping Norton STW Blue Brook 0 0h -
Wessex Water SALTFORD MEAD LANE STORM TANK River Avon 0 0h -
Severn Trent Water MINCHINHAMPTON - RO SMALL HOUSE (CSO) Gatcombe Water 0 0h -
Severn Trent Water WOOLSTONE STW (CSO) Tirle Brook 0 0h -
Wessex Water BRADFORD-ON-AVON STORM TANK River Avon 0 0h -
Wessex Water SALTFORD MEAD LANE River Avon Via Sws 0 0h -
Severn Trent Water BANBURY - ORCHARD CLOSE (CSO) Sutton Brook 0 0h -
Wessex Water ALDERTON INLET Luckington Brook 0 0h -
Wessex Water MONKTON COMBE MILL LANE Midford Brook 0 0h -
Severn Trent Water PAINSWICK - STEPPING STONE LN (CSO) Painswick Stream 0 0h 25 h
Severn Trent Water TETBURY - AVENING STW (CSO) Nailsworth Stream 0 0h -
Thames Water Burford STW River Windrush 0 0h -
Severn Trent Water BLOCKLEY – FIELD OFF DRAYCOTT ROAD (CSO) Blockley Brook 0 0h -
Severn Trent Water WOODCHESTER - BATH RD/STATION RD (CSO) Nailsworth Stream 0 0h -
Severn Trent Water KINGS STANLEY - RYEFORD RD SOUTH (CSO) River Frome 0 0h -
Severn Trent Water BRIMSCOMBE - CARAVAN SITE(SDC 37) (CSO) River Frome 0 0h -
Wessex Water BATH FAIRFIELD AVENUE R/O NO XX Lam Brook Via Sws 0 0h -
Wessex Water WELLOW MILL HILL Wellow Brook 0 0h 48 h
Wessex Water MONKTON COMBE SUMMER LANE Horsecombe Brook 0 0h -
Wessex Water WOTTON-UNDER-EDGE BRICKFIELDS Dyers Brook 0 0h -
Wessex Water TETBURY INLET River Avon 0 0h -
Severn Trent Water CHERINGTON STW (SSTO) River Stour 0 0h -
Wessex Water TETBURY SPRINGFIELDS River Avon 0 0h -
Thames Water Northleach STW River Leach 0 0h -
Wessex Water BATHFORD OSTLING LANE River Avon 0 0h -
Wessex Water WOTTON-UNDER-EDGE WATER LANE Dyers Brook 0 0h -
Wessex Water BOX MILL LANE By Brook 0 0h -
Severn Trent Water ASHTON UNDER HILL STW (CSO) Carrant Brook 0 0h 29 h
Wessex Water BOX RECREATION GROUND (ADJ TO) By Brook 0 0h -
Severn Trent Water BROADWAY - CHELTENHAM ROAD (CSO) Badsey Brook 0 0h -
Thames Water Near Sezincote Lodge N/A 0 0h -
Wessex Water Unknown Unknown 0 0h 1 h
Wessex Water GREAT BADMINTON STORM TANK Luckington Brook 0 0h -
Wessex Water BATHEASTON BATHEASTON GARDEN River Avon 0 0h -
Wessex Water NORTH NIBLEY STORM TANK Doverte Brook 0 0h -
Severn Trent Water SNOWSHILL (CSO) Badsey Brook 0 0h 58 h
Severn Trent Water WITCOMBE - PILLCROFT CLOSE (CSO) Horsbere Brook 0 0h -
Thames Water Bourton-on-the-water Windrush 0 0h -
Severn Trent Water BUSSAGE - TOADSMOOR ROAD (SDC 38) (CSO) River Frome 0 0h -
Thames Water Milton-Under-Wychwood STW Littlestock Brook 0 0h -

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

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