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Spill evidence · Friends of the Dart
SCORRITON STW_SO_SCORRITON
Storm overflow at the works · SBB01058 · feeds SCORRITON_STW_SCORRITON
Dry spill
Evidence strength
High confidence- ✓ Long discharge (≥6 h)
- ✓ Dry on the EA 1-day window
- ✓ Rain gauge close (≤5 km)
- ✓ Monitor 100% operational that year
The discharge
- Spill day
- Saturday, 1 March 2025
- Started
- 1 Mar 2025, 00:40
- Ended
- 6 Mar 2025, 12:52
- Duration
- 5 days 12 hours
- Receiving water
- Dart
- Parish
- West Buckfastleigh
Rainfall evidence
Daily rainfall at the matched gauge (Holne Priddons Farm) 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: Dry spill3-day window: Wet weather4-day window: Wet weather
| Date | Rainfall | |
|---|---|---|
| 01/03/2025 (spill day) | 0 mm | dry |
| 28/02/2025 | 0 mm | dry |
| 27/02/2025 | 0 mm | dry |
| 26/02/2025 | 0.7 mm | rain |
| 25/02/2025 | 18.7 mm | rain |
River flow that day: 15.985 m³/s. Verify at the EA rainfall station.
Gauge proximity
Outlet (red) vs matched rain gauge (blue), 2.0 km apart. Closer means the rainfall reading is more representative of the overflow.
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Severity & context
- Bathing water
- Not Applicable
- Shellfish water
- Not Applicable
- EA annual return (2025)
- 141 counted spills · 1837 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 SBB01058). Rainfall: EA Hydrology gauge b000c3f6-3922-48ea-8726-4173de4998d0. 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.