← East Ogwell STW
Spill evidence · Friends of the River Teign
East Ogwell STW
Storm overflow at the works · SBB00393 · feeds EAST OGWELL_STW_EAST OGWELL
Dry spill
Evidence strength
High confidence- ✓ Long discharge (≥6 h)
- ✓ Dry across a 4-day antecedent window
- ✓ Rain gauge close (≤5 km)
The discharge
- Spill day
- Wednesday, 25 March 2020
- Started
- 25 Mar 2020, 12:13
- Ended
- 26 Mar 2020, 11:49
- Duration
- 23 hours 35 minutes
- Receiving water
- Lemon
- Parish
- Ogwell
Rainfall evidence
Daily rainfall at the matched gauge (Bickington) 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: Dry spill4-day window: Dry spill
| Date | Rainfall | |
|---|---|---|
| 25/03/2020 (spill day) | 0 mm | dry |
| 24/03/2020 | 0 mm | dry |
| 23/03/2020 | 0 mm | dry |
| 22/03/2020 | 0 mm | dry |
| 21/03/2020 | 0 mm | dry |
River flow that day: 4.987 m³/s. Verify at the EA rainfall station.
Gauge proximity
Outlet (red) vs matched rain gauge (blue), 4.9 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
- Teign Estuary
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 SBB00393). Rainfall: EA Hydrology gauge 31653dd5-c1ed-4091-a860-5e8d25936861. 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.