Sewage spills in Bristol
Includes overflow assets operated by Wessex Water within 5 km of the town centre.
Total spills
3,177
Duration
7,153hrs
Infrastructure
145
Based on the latest Environment Agency storm overflow data
What does 7,153 hours mean?
Combined across all 145 sites in Bristol, that is equivalent to sewage being discharged continuously for 298 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
145sites
- Critical (>100 spills)2
- High (50–100 spills)14
- Moderate (10–49 spills)74
- Low (<10 spills)55
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) |
|---|---|---|---|
| Muller Road CSO | Wessex Water | 118 | 645 |
| Filton Avenue CSO | Wessex Water | 111 | 352 |
| Polly Barnes Hill CSO | Wessex Water | 69 | 154 |
| Bishopthorpe Road CSO | Wessex Water | 65 | 133 |
| Ellesmere Road CSO | Wessex Water | 60 | 381 |
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