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
Monday, 5 July 2021
Started
5 Jul 2021, 19:43
Ended
5 Jul 2021, 19:58
Duration
15 minutes 40 seconds
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
05/07/2021 (spill day)15.6 mmrain
04/07/20211 mmrain
03/07/20211.3 mmrain
02/07/20213.1 mmrain
01/07/20210.9 mmrain

River flow that day: 15.065 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 (2021)
100 counted spills · 175 h total
Monitor uptime (2021)
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.