← Moretonhampstead STW, Moretonhampstd
Spill evidence · Friends of the River Teign
Moretonhampstead STW, Moretonhampstd
Storm overflow at the works · SBB00807 · feeds MORETONHAMPSTEAD_STW_MORETONHAMPSTEAD
Dry spill
Evidence strength
Medium confidence- ✓ Sustained discharge (≥1 h)
- ✓ Dry across a 3-day window
- ✓ Rain gauge close (≤5 km)
The discharge
- Spill day
- Thursday, 18 May 2023
- Started
- 18 May 2023, 06:12
- Ended
- 18 May 2023, 07:23
- Duration
- 1 hour 11 minutes
- Receiving water
- Wray Brook
- Parish
- Moretonhampstead
Rainfall evidence
Daily rainfall at the matched gauge (Mardon Down) 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 | |
|---|---|---|
| 18/05/2023 (spill day) | 0 mm | dry |
| 17/05/2023 | 0 mm | dry |
| 16/05/2023 | 0 mm | dry |
| 15/05/2023 | 0 mm | dry |
| 14/05/2023 | 0.9 mm | rain |
River flow that day: 3.409 m³/s. Verify at the EA rainfall station.
Gauge proximity
Outlet (red) vs matched rain gauge (blue), 3.2 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
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 SBB00807). Rainfall: EA Hydrology gauge 323b21d8-c9a4-4681-bc5c-62d7337993ac. 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.