DARTHAVEN MARINA SPS_PSCSOEO_KINGSWEAR

Combined sewer overflow · SBB00348 · feeds DARTMOUTH STW

Wet weather

The discharge

Spill day: Thursday, 18 December 2025
Started: 18 Dec 2025, 12:38
Ended: 18 Dec 2025, 12:57
Duration: 19 minutes 7 seconds
Receiving water: Dart (Tidal)
Parish: Kingswear

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

Date	Rainfall
18/12/2025 (spill day)	19.3 mm	rain
17/12/2025	26.2 mm	rain
16/12/2025	0.3 mm	rain
15/12/2025	27.1 mm	rain
14/12/2025	8 mm	rain

River flow that day: 69.211 m³/s. Verify at the EA rainfall station.

Gauge proximity

Outlet (red) vs matched rain gauge (blue), 5.1 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: Not Applicable
Ahead of the works: Unknown (no works overflow data)
EA annual return (2025): 33 counted spills · 11 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 SBB00348). 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.