← 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
- Friday, 11 December 2020
- Started
- 11 Dec 2020, 14:28
- Ended
- 11 Dec 2020, 15:00
- Duration
- 31 minutes 22 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
| Date | Rainfall | |
|---|---|---|
| 11/12/2020 (spill day) | no data | |
| 10/12/2020 | no data | |
| 09/12/2020 | no data | |
| 08/12/2020 | no data | |
| 07/12/2020 | no 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.