Sewage spills in Colchester
Includes overflow assets operated by Anglian Water within 5 km of the town centre.
Total spills
355
Duration
1,749hrs
Infrastructure
17
Based on the latest Environment Agency storm overflow data
What does 1,749 hours mean?
Combined across all 17 sites in Colchester, that is equivalent to sewage being discharged continuously for 72.9 days non-stop into local waterways (if all reported hours ran back-to-back). In practice, spills are separate events spread across the year.
Top 10 sites by spill count
Sites by severity
17sites
- Critical (>100 spills)1
- High (50–100 spills)2
- Moderate (10–49 spills)5
- Low (<10 spills)9
Site details
Counts use the EA 12–24 hour reporting method for the most recent year with spills, per site. Environment Agency EDM dataset.
| Site name | Water company | Spill count | Duration (hours) |
|---|---|---|---|
| Sports Centre Mill Rd. | Anglian Water | 103 | 139 |
| Colchester St Albans Road CSO | Anglian Water | 55 | 345 |
| Colchester Water Recycling Centre | Anglian Water | 52 | 329 |
| West Bergholt STW | Anglian Water | 37 | 698 |
| Colchester-Bourne Mill CSO | Anglian Water | 21 | 16 |
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DWI lab-style readings, gauges and hardness for this area.
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