← BRIDGETOWN STEAMER QUAY_CSO_TOTNES
Spill evidence · Friends of the Dart
BRIDGETOWN STEAMER QUAY_CSO_TOTNES
Combined sewer overflow · SBB01167 · feeds TOTNES STW
Wet weather
The discharge
- Spill day
- Friday, 29 August 2025
- Started
- 29 Aug 2025, 00:05
- Ended
- 29 Aug 2025, 01:18
- Duration
- 1 hour 12 minutes
- Receiving water
- Harbourne River
- Parish
- Totnes
Rainfall evidence
Daily rainfall at the matched gauge (Harbertonford Slipperstone) for the spill day and the days before. A spill is dry when every day in the window is ≤ 0.25 mm.
1-day window: Wet weather3-day window: Wet weather4-day window: Wet weather
| Date | Rainfall | |
|---|---|---|
| 29/08/2025 (spill day) | 0.7 mm | rain |
| 28/08/2025 | 43.1 mm | rain |
| 27/08/2025 | 8.6 mm | rain |
| 26/08/2025 | 6.2 mm | rain |
| 25/08/2025 | 0.9 mm | rain |
River flow that day: 2.887 m³/s. Verify at the EA rainfall station.
Gauge proximity
Outlet (red) vs matched rain gauge (blue), 5.9 km apart. Closer means the rainfall reading is more representative of the overflow.
Loading map…
Severity & context
- Bathing water
- Steamer Quay, Dart Estuary
- Shellfish water
- Dart
- Ahead of the works
- Yes — the treatment works' own overflow stayed shut that day, so capacity was available. Avoidable.
- EA annual return (2025)
- 39 counted spills · 91 h total
- Monitor uptime (2025)
- 100% operational
Method & provenance. Dry/wet classification is decided by rainfall at the nearest EA gauge — ≤ 0.25 mm on the spill day and each preceding day of the window (how we classify). Spill data: Environment Agency EDM (outlet SBB01167). Rainfall: EA Hydrology gauge 8d954129-924c-47e3-8750-5f29a59617b2. A dry spill is precautionary evidence of a likely fault, not proof of an offence — we test the rainfall, not the works' flow. Generated by River Hub.