Media Queries
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We gather information from the sewage companies every fifteen minutes - by overlaying rainfall on the same sewage map, it's pretty obvious that when it rains, the sewage will overflow.
Water companies are only permitted to allow sewage to overflow in exceptional circumstances - but sometimes there is no rain, and the sewage overflows anyway.
Explore the whole country Live data for Cramlington and Killingworth
Each blue square is the rain measured across a patch of the country in that quarter of an hour; each dot is a storm overflow that was discharging at that moment, coloured by company and growing the longer it has been running.
Why two numbers? Most spills are short (under two hours on a typical day), so many more overflows spill at some point in a day than are ever spilling at the same time. On , the worst quarter-hour had overflows discharging at once, but different overflows spilled at some point that day.
No rain fell anywhere in Cramlington and Killingworth for 6 days, and none on the day either. Is this an illegal spill?
Every event the detector has found in Cramlington and Killingworth: days when no rain fell anywhere in the constituency, and its overflows discharged regardless. Pick one and watch it happen.
The square is how much it rained; the drop is how much sewage followed.
Sewage data begins in December 2024; rainfall goes back to December 2022. Days before the sewage record starts show rain only.
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org