← Dartington C
Spill evidence · Friends of the Dart
Dartington C
Combined sewer overflow · SBB00350 · feeds TOTNES STW
Wet weather
The discharge
- Spill day
- Thursday, 20 May 2021
- Started
- 20 May 2021, 11:56
- Ended
- 20 May 2021, 12:16
- Duration
- 20 minutes
- Receiving water
- Bidwell Brook
- Parish
- Dartington
Rainfall evidence
Daily rainfall at the matched gauge (Austins Bridge) 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 | |
|---|---|---|
| 20/05/2021 (spill day) | 15.5 mm | rain |
| 19/05/2021 | 1.1 mm | rain |
| 18/05/2021 | 21.8 mm | rain |
| 17/05/2021 | 5.1 mm | rain |
| 16/05/2021 | 6.5 mm | rain |
River flow that day: 27.879 m³/s. Verify at the EA rainfall station.
Gauge proximity
Outlet (red) vs matched rain gauge (blue), 5.6 km apart. Closer means the rainfall reading is more representative of the overflow.
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Severity & context
- Bathing water
- Steamer Quay, Dart Estuary
- Shellfish water
- Dart
- Ahead of the works
- No — the works was also overflowing that day.
- EA annual return (2021)
- 44 counted spills · 414 h total
- Monitor uptime (2021)
- 76% 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 SBB00350). Rainfall: EA Hydrology gauge fd8ea26c-8052-48c5-a1bb-bbd5ebbbb3d3_364176. 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.