It's a Dirty Business

Watch Channel 4's documentary about the state of the water industry.

Bicester and Woodstock - 2025 Sewage

Polluted by sewage 6,556 hours in 2025 , monitoring offline 5,731 hours , potential overflows 651 hours

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

Which Year?

Select Another Constituency

Select the constituency from the drop-down
✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Bicester and Woodstock for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

Take Action

Your local MP is Calum Miller (Liberal Democrat) - Find out more about their interests, donors, and voting at They Work For You

Share this page, post a message, and tell others about the huge problem of sewage pollution across the UK

Daily Data

Jan - 1,464 hours , 9 offline
Feb - 650 hours , 658 offline
Mar - 57 hours , 147 offline
Apr - 24 hours , 11 offline
May - 21 hours , 436 offline
Jun - 4 hours , 720 offline
Jul - 10 hours , 744 offline
Aug - 13 hours , 1,337 offline
Sept - 9 hours , 1,080 offline
Oct - 7 hours , 587 offline
Nov - 1,308 hours , 256 potential
Dec - 2,986 hours , 395 potential
We need your support!

Thank you so much to everyone who contributed to the site in 2025 to keep it running. We do rely on your contributions! Developing and running a website costs real money.
Please consider a one-off or small recurring donation.

Donate Now

Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Thames Water Church Hanborough STW Hanborough Stream 70 1,033 h 15m -
Thames Water Church Hanborough STW Hanborough Stream 38 684 h 45m -
Thames Water South Leigh STW Limb Brook 26 550 h 15m -
Thames Water Weston-on-the-Green STW Gallos Brook 21 415 h 30m -
Thames Water Charlton-on-Otmoor STW Oxon Ray 28 414 h -
Thames Water Charlton-on-Otmoor STW Oxon Ray 26 398 h -
Thames Water South Leigh STW Limb Brook 22 377 h -
Thames Water Horton-Cum-Studley STW Danes Brook 40 299 h 45m 928 h
Thames Water Combe STW Evenlode 18 298 h -
Thames Water Islip STW River Ray 14 285 h 45m -
Thames Water Weston-on-the-Green STW Gallos Brook 20 280 h 30m -
Thames Water Bletchingdon STW Bletchingdon Brook 29 258 h 219 h
Thames Water Bicester STW Langford Brook 17 231 h 15m -
Thames Water Bicester STW Langford Brook 17 217 h 30m -
Thames Water Upper Heyford STW Cherwell 15 160 h 45m -
Thames Water Upper Heyford STW Cherwell 14 136 h 15m -
Thames Water Middleton Stoney STW Gagle Brook 12 96 h 45m -
Thames Water Combe STW Evenlode 8 63 h 30m -
Thames Water Woodstock STW River Glyme 8 60 h 667 h
Thames Water Middleton Stoney STW Gagle Brook 7 50 h 0 h
Thames Water Tackley SPS & Storm SPS Rver Cherwell 4 47 h 15m -
Anglian Water ARDLEY STW Stoke Lyne Brook 7 45 h 16m -
Thames Water Bletchingdon STW Bletchingdon Brook 4 38 h 15m -
Anglian Water WESTBURY STW River Great Ouse 11 29 h 51m 0 h
Thames Water Islip STW River Ray 2 29 h 15m 3,331 h
Thames Water Woodstock STW River Glyme 12 28 h 45m -
Thames Water Weston-on-the-Green SPS Gallos Brook 2 21 h 14m -
Anglian Water ARDLEY STW Stoke Lyne Brook 1 3 h 59m -
Anglian Water WESTBURY STW River Great Ouse 3 1 h 13m -
Thames Water Horton-Cum-Studley STW Danes Brook 1 0 h 30m 651 h
Thames Water XX (Bucknell) SPS Town Brook 0 0 h -
Thames Water Weston-on-the-Green SPS Gallos Brook 0 0 h -
Thames Water XX (Bucknell) SPS Town Brook 0 0 h 584 h

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

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.