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Summerhill pumping station, Ilsington

Spill evidence · Friends of the River Teign

Summerhill pumping station, Ilsington

Pumping station overflow · SBB01191 · feeds HEATHFIELD STW
Wet weather

The discharge

Spill day
Saturday, 18 March 2023
Started
18 Mar 2023, 09:12
Ended
18 Mar 2023, 11:34
Duration
2 hours 22 minutes
Receiving water
Liverton Brook
Parish
Ilsington

Rainfall evidence

Daily rainfall at the matched gauge (Bickington) 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
18/03/2023 (spill day)0 mmdry
17/03/20236 mmrain
16/03/20236.2 mmrain
15/03/20238.3 mmrain
14/03/20230.3 mmrain

River flow that day: 7.422 m³/s. Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 3.3 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
Teign Estuary
Ahead of the works
Yes — the treatment works' own overflow stayed shut that day, so capacity was available. Avoidable.
EA annual return (2023)
110 counted spills · 1941 h total
Monitor uptime (2023)
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 SBB01191). Rainfall: EA Hydrology gauge 31653dd5-c1ed-4091-a860-5e8d25936861. 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 — Summerhill pumping station, Ilsington — River Teign Data