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Chudleigh STW, Newton Abbot

Spill evidence · Friends of the River Teign

Chudleigh STW, Newton Abbot

Storm overflow at the works · SBB00254 · feeds CHUDLEIGH STW
Dry spill

Evidence strength

High confidence
  • Sustained discharge (≥1 h)
  • Dry across a 4-day antecedent window
  • Monitor 100% operational that year

The discharge

Spill day
Monday, 7 June 2021
Started
7 Jun 2021, 06:30
Ended
7 Jun 2021, 08:17
Duration
1 hour 46 minutes
Receiving water
Teign (Lower)
Parish
Chudleigh

Rainfall evidence

Daily rainfall at the matched gauge (Ashcombe) 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: Dry spill
DateRainfall
07/06/2021 (spill day)0 mmdry
06/06/20210 mmdry
05/06/20210 mmdry
04/06/20210 mmdry
03/06/20210 mmdry

River flow that day: 3.159 m³/s. Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 5.6 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
Teign Estuary
EA annual return (2021)
161 counted spills · 479 h total
Monitor uptime (2021)
100% 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 SBB00254). Rainfall: EA Hydrology gauge 4e00b4e3-af60-47cf-afe7-b36ac774ca82. 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 — Chudleigh STW, Newton Abbot — River Teign Data