← Compton Castle
Spill evidence · Friends of the River Teign
Compton Castle
Combined sewer overflow · SBB00301 · feeds COMPTON AND MARLDON STW
Dry spill
Evidence strength
High confidence- ✓ Long discharge (≥6 h)
- ✓ Dry on the EA 1-day window
- ✓ Rain gauge close (≤5 km)
- ✓ Monitor 97% operational that year
The discharge
- Spill day
- Saturday, 13 April 2024
- Started
- 13 Apr 2024, 05:30
- Ended
- 13 Apr 2024, 19:28
- Duration
- 13 hours 57 minutes
- Receiving water
- Aller Brook
- Parish
- Marldon
Rainfall evidence
Daily rainfall at the matched gauge (Torbay Compton) 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 | |
|---|---|---|
| 13/04/2024 (spill day) | 0 mm | dry |
| 12/04/2024 | 0 mm | dry |
| 11/04/2024 | 0 mm | dry |
| 10/04/2024 | 2.5 mm | rain |
| 09/04/2024 | 1.7 mm | rain |
River flow that day: 8.793 m³/s. Verify at the EA rainfall station.
Gauge proximity
Outlet (red) vs matched rain gauge (blue), 1.4 km apart. Closer means the rainfall reading is more representative of the overflow.
Loading map…
Severity & context
- Bathing water
- Not Applicable
- Shellfish water
- Teign Estuary
- Ahead of the works
- Yes — the treatment works' own overflow stayed shut that day, so capacity was available. Avoidable.
- EA annual return (2024)
- 144 counted spills · 2069 h total
- Monitor uptime (2024)
- 97% 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 SBB00301). Rainfall: EA Hydrology gauge e7e2f7d4-f497-4adc-b077-c20bc2dcedfa. 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.