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Doddiscombsleigh STW, Teign Valley

Spill evidence · Friends of the River Teign

Doddiscombsleigh STW, Teign Valley

Storm overflow at the works · SBB00372 · feeds DODDISCOMBSLEIGH_STW_TEIGN VALLEY
Wet weather

The discharge

Spill day
Wednesday, 18 October 2023
Started
18 Oct 2023, 13:18
Ended
18 Oct 2023, 15:04
Duration
1 hour 46 minutes
Receiving water
Teign (Lower)
Parish
Doddiscombsleigh

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: Wet weather3-day window: Wet weather4-day window: Wet weather
DateRainfall
18/10/2023 (spill day)22.1 mmrain
17/10/20231.1 mmrain
16/10/20230 mmdry
15/10/20230 mmdry
14/10/20230.6 mmrain

River flow that day: 4.711 m³/s. Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 8.1 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
Not Applicable
EA annual return (2023)
75 counted spills · 501 h total
Monitor uptime (2023)
98% 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 SBB00372). 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.