The Cotswolds was polluted by sewage 1,929 times in 2023
lasting 27,985 hours - that's 3.24 years!

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for The Cotswolds in 2023
25 Sites polluted by Severn Trent Water, Thames Water, Wessex Water
1,929 sewage dumps
27,985 h duration
That's 3.24 years! On average 5.3 times a day
Change Over Time
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Daily Data Since 2023
     Monitoring Online      Monitoring Offline      Polluting      Potentially Polluting      Unknown
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2023

Here are all the reported sewage overflow totals for The Cotswolds in 2023. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 0 of the total 27 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Severn Trent Water Blockley Brook BLOCKLEY SEWAGE TREATMENT WORKS 178 3,535 81.8
Thames Water River Coln FAIRFORD STW, FAIRFORD, GLOS 162 3,391 99.8
Wessex Water River Avon TETBURY WASTE WATER TREATMENT WORKS 215 3,029 97.7
Thames Water Shorncote Ditch CIRENCESTER WWTW 165 2,870 100
Thames Water Ampney Brook AMPNEY ST PETER WWTW 130 2,759 94.3
Thames Water River Colne ANDOVERSFORD WWTW 115 2,092 100
Thames Water Evenlode STORM SEWAGE IRRIGATION AREA, MORET 128 2,012 100
Wessex Water River Avon DIDMARTON WATER RECYCLING CENTRE 93 1,817 99.9
Thames Water Windrush BOURTON-ON-THE-WATER STW 110 1,565 91.7
Wessex Water Byde Mill Brook/River Avon THINGLEY WATER RECYCLING CENTRE 72 980 100
Thames Water Bledington Brook BLEDINGTON WWTW 65 956 99.4
Thames Water Leach LECHLADE STW 45 688 99.8
Thames Water Evenlode Broadwell 48 634 100
Severn Trent Water Nailsworth Stream AVENING STW 118 549 99.8
Wessex Water Doverte Brook NORTH NIBLEY WATER RECYCLING CENTRE 31 322 99.9
Wessex Water Dyers Brook HACK MILL COMBINED SEWER OVERFLOW 80 250 100
Wessex Water Little Avon WICKWAR WATER RECYCLING CENTRE 47 242 100
Severn Trent Water Cam Brook CHIPPING CAMPDEN STW 40 163 61
Thames Water Dudgrove Stream KEMPSFORD STW, KEMPSFORD, FAIRFORD, 8 44 99.5
Wessex Water Dyers Brook WATER LANE CSO 42 23 99.6
Thames Water River Evenlode CSO AT MORETON-IN-MARSH SPS 4 20 91.9
Thames Water River Leach NORTHLEACH WWTW 3 18 100
Severn Trent Water Blockley Brook SHEAFHOUSE FARM CSO 4 6 77.6
Wessex Water Dyers Brook OLD COACH YARD CSO 24 5 92
Severn Trent Water Noleham Brook MICKLETON - COTSWOLD EDGE SPS 2 3 95.5
Wessex Water River Avon SPRINGFIELDS PUMPING STATION 0 0 100

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. This 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.