Ashprington STW

Spill evidence · Friends of the Dart

Ashprington STW

Storm overflow at the works · SBB00053 · feeds ASHPRINGTON_STW_ASHPRINGTON
No rain data

The discharge

Spill day
Monday, 30 November 2020
Started
30 Nov 2020, 20:10
Ended
30 Nov 2020, 21:07
Duration
56 minutes 19 seconds
Receiving water
Harbourne River
Parish
Ashprington

Rainfall evidence

Daily rainfall at the matched gauge (Harbertonford Slipperstone) 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: No rain data3-day window: No rain data4-day window: No rain data
DateRainfall
30/11/2020 (spill day)no data
29/11/2020no data
28/11/2020no data
27/11/2020no data
26/11/2020no data

River flow that day: . Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 5.0 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
Dart
EA annual return (2020)
118 counted spills · 929 h total
Monitor uptime (2020)
20% 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 SBB00053). Rainfall: EA Hydrology gauge 8d954129-924c-47e3-8750-5f29a59617b2. 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.
Spill evidence — Ashprington STW — River Hub