Receiving watercourse
River Thames (via the Tideway tunnel)
10 monitored storm overflows record River Thames (via the Tideway tunnel) as their receiving watercourse in the National Storm Overflow Hub. Operated by Thames Water.
This watercourse is part of our featured River Thames coverage — that page aggregates the whole river, including tributaries and estuary stretches.
10
Storm overflows
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Active right now
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Monitors offline
21
Spill events · 12 months
5,146h
Recorded discharge · 12 months
0
Open discrepancies
Every monitored overflow· 10
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
Seen something?
Sewage debris, foam, dead fish — citizen sightings are cross-referenced against the official discharge data above and strengthen the public record.