Smith St, Dartmouth

Spill evidence · Friends of the Dart

Smith St, Dartmouth

Combined sewer overflow · SBB01095 · feeds DARTMOUTH STW
Wet weather

The discharge

Spill day
Thursday, 28 August 2025
Started
28 Aug 2025, 23:56
Ended
29 Aug 2025, 01:16
Duration
1 hour 20 minutes
Receiving water
Dart (Tidal)
Parish
Dartmouth

Rainfall evidence

Daily rainfall at the matched gauge (Brixham) 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
28/08/2025 (spill day)27.4 mmrain
27/08/20259.3 mmrain
26/08/20250.7 mmrain
25/08/20251.2 mmrain
24/08/20250 mmdry

River flow that day: 2.342 m³/s. Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 5.3 km apart. Closer means the rainfall reading is more representative of the overflow.

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Severity & context

Bathing water
Warfleet Creek, Dart Estuary
Shellfish water
Dart
Ahead of the works
Unknown (no works overflow data)
EA annual return (2025)
85 counted spills · 162 h total
Monitor uptime (2025)
100% operational

⚠ Coastal / tidal location — very short discharges around high tide can be monitor artefacts; corroborate with tide times before relying on short events here.

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 SBB01095). Rainfall: EA Hydrology gauge 9dba2bf3-f5ea-4616-ac8e-dce16dbc0dc8. 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.