← Trusham STW, Teign Valley
Spill evidence · Friends of the River Teign
Trusham STW, Teign Valley
Storm overflow at the works · SBB01288 · feeds TRUSHAM_STW_TEIGN VALLEY
Dry spill
Evidence strength
Medium confidence- ✓ Long discharge (≥6 h)
- ✓ Dry on the EA 1-day window
- ✓ Monitor 100% operational that year
The discharge
- Spill day
- Monday, 17 April 2023
- Started
- 17 Apr 2023, 06:03
- Ended
- 17 Apr 2023, 14:41
- Duration
- 8 hours 37 minutes
- Receiving water
- Teign (Lower)
- Parish
- Trusham
Rainfall evidence
Daily rainfall at the matched gauge (Ashcombe) 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 | |
|---|---|---|
| 17/04/2023 (spill day) | 0 mm | dry |
| 16/04/2023 | 0 mm | dry |
| 15/04/2023 | 0 mm | dry |
| 14/04/2023 | 2.5 mm | rain |
| 13/04/2023 | 10.9 mm | rain |
River flow that day: 6.422 m³/s. Verify at the EA rainfall station.
Gauge proximity
Outlet (red) vs matched rain gauge (blue), 7.2 km apart. Closer means the rainfall reading is more representative of the overflow.
Loading map…
Severity & context
- Bathing water
- Not Applicable
- Shellfish water
- Not Applicable
- EA annual return (2023)
- 134 counted spills · 1901 h total
- Monitor uptime (2023)
- 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 SBB01288). Rainfall: EA Hydrology gauge 4e00b4e3-af60-47cf-afe7-b36ac774ca82. 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 Teign Data.