← Chudleigh STW, Newton Abbot
Spill evidence · Friends of the River Teign
Chudleigh STW, Newton Abbot
Storm overflow at the works · SBB00255 · feeds CHUDLEIGH STW
Dry spill
Evidence strength
Medium confidence- ✓ Sustained discharge (≥1 h)
- ✓ Dry across a 3-day window
- ✓ Monitor 93% operational that year
The discharge
- Spill day
- Wednesday, 15 December 2021
- Started
- 15 Dec 2021, 09:25
- Ended
- 15 Dec 2021, 14:42
- Duration
- 5 hours 17 minutes
- Receiving water
- Teign (Lower)
- Parish
- Chudleigh
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: Dry spill4-day window: Wet weather
| Date | Rainfall | |
|---|---|---|
| 15/12/2021 (spill day) | 0 mm | dry |
| 14/12/2021 | 0 mm | dry |
| 13/12/2021 | 0 mm | dry |
| 12/12/2021 | 0.2 mm | dry |
| 11/12/2021 | 0.3 mm | rain |
River flow that day: 4.691 m³/s. Verify at the EA rainfall station.
Gauge proximity
Outlet (red) vs matched rain gauge (blue), 5.7 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
- EA annual return (2021)
- 87 counted spills · 1248 h total
- Monitor uptime (2021)
- 93% 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 SBB00255). 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.