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Dunsford STW, Teign Valley

Spill evidence · Friends of the River Teign

Dunsford STW, Teign Valley

Storm overflow at the works · SBB00388 · feeds DUNSFORD_STW_TEIGN VALLEY
Wet weather

The discharge

Spill day
Tuesday, 29 December 2020
Started
29 Dec 2020, 09:23
Ended
29 Dec 2020, 16:16
Duration
6 hours 52 minutes
Receiving water
Reedy Brook
Parish
Dunsford

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
29/12/2020 (spill day)0 mmdry
28/12/20203.8 mmrain
27/12/20206.4 mmrain
26/12/202026.8 mmrain
25/12/20200.7 mmrain

River flow that day: 17.272 m³/s. Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 4.8 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
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 SBB00388). 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.
Spill evidence — Dunsford STW, Teign Valley — River Teign Data