Here are all the reported sewage overflow totals for Hitchin and Harpenden 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 2 of the total 9 CSO locations had reporting enabled for less than half the year, of which 2 had zero reporting.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Anglian Water | River Hiz | HITCHIN WATER RECYCLING CENTRE | 95 | 160 | 99.75 |
| Anglian Water | Ash Brook, River Great Ouse | ASHBROOK WATER RECYCLING CENTRE | 12 | 80 | 100 |
| Thames Water | Lee | Harpenden | 4 | 35 | 99.8 |
| Thames Water | River Mimram | WHITWELL WWTW | 2 | 12 | 99.8 |
| Anglian Water | River Hiz | CSO AND EO AT PIRTON TPS | 7 | 11 | 95.5 |
| Anglian Water | River Hiz | BANCROFT RECREATION GROUND CSO | 1 | 1 | 99.8 |
| Anglian Water | Unknown | POUND FARM PUMPING STATION | 0 | 0 | 100 |
| Thames Water | River Lee | WHEATHAMPSTEAD PUMPING STATION , HE | 0 | 0 | 0 |
| Anglian Water | River Oughton | OLD HALE STORM OVERFLOW | 0 | 0 | 0 |
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.
