Widecombe STW, Widecombe in the Moor

Spill evidence · Friends of the Dart

Widecombe STW, Widecombe in the Moor

Storm overflow at the works · SBB01359 · feeds WIDECOMBE_STW_WIDECOMBE IN THE MOOR
Wet weather

The discharge

Spill day
Friday, 30 June 2023
Started
30 Jun 2023, 19:56
Ended
30 Jun 2023, 21:25
Duration
1 hour 28 minutes
Receiving water
East Webburn River
Parish
Widecombe in the Moor

Rainfall evidence

Daily rainfall at the matched gauge (Bellever Dartmoor) 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
30/06/2023 (spill day)9.4 mmrain
29/06/20231.6 mmrain
28/06/20232.4 mmrain
27/06/20230 mmdry
26/06/20230 mmdry

River flow that day: 2.075 m³/s. Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 6.3 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)
12 counted spills · 36 h total
Monitor uptime (2023)
80% 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 SBB01359). Rainfall: EA Hydrology gauge 723a8fc4-908b-4430-91c7-9990be86540a_363307. 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 Hub.