31 Fore Street, Totnes

Spill evidence · Friends of the Dart

31 Fore Street, Totnes

Combined sewer overflow · SBB00025 · feeds TOTNES STW
Wet weather

The discharge

Spill day
Friday, 14 July 2023
Started
14 Jul 2023, 09:44
Ended
14 Jul 2023, 10:32
Duration
47 minutes 2 seconds
Receiving water
Dart
Parish
Totnes

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: Wet weather3-day window: Wet weather4-day window: Wet weather
DateRainfall
14/07/2023 (spill day)28.4 mmrain
13/07/202312.4 mmrain
12/07/20230.5 mmrain
11/07/20230.3 mmrain
10/07/202327.4 mmrain

River flow that day: 28.011 m³/s. Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 5.8 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
Dart
Ahead of the works
Yes — the treatment works' own overflow stayed shut that day, so capacity was available. Avoidable.
EA annual return (2023)
45 counted spills · 29 h total
Monitor uptime (2023)
95% 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 SBB00025). 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.