KILBURY STW_SSO_BUCKFASTLEIGH

Spill evidence · Friends of the Dart

KILBURY STW_SSO_BUCKFASTLEIGH

Storm overflow at the works · SBB00178 · feeds BUCKFASTLEIGH STW
Dry spill

Evidence strength

High confidence
  • Long discharge (≥6 h)
  • Dry across a 3-day window
  • Rain gauge close (≤5 km)

The discharge

Spill day
Thursday, 5 March 2026
Started
5 Mar 2026, 11:37
Ended
5 Mar 2026, 23:44
Duration
12 hours 7 minutes
Receiving water
Dart
Parish
Buckfastleigh

Rainfall evidence

Daily rainfall at the matched gauge (Austins Bridge) 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
DateRainfall
05/03/2026 (spill day)0.1 mmdry
04/03/20260 mmdry
03/03/20260 mmdry
02/03/20260 mmdry
01/03/20261.6 mmrain

River flow that day: 15.823 m³/s. Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 0.0 km apart. Closer means the rainfall reading is more representative of the overflow.

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Severity & context

Bathing water
Steamer Quay, Dart Estuary
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 SBB00178). Rainfall: EA Hydrology gauge fd8ea26c-8052-48c5-a1bb-bbd5ebbbb3d3_364176. 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.