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Receiving watercourse

River Derwent

113 monitored storm overflows record River Derwent as their receiving watercourse in the National Storm Overflow Hub. Operated by Northumbrian Water, Severn Trent Water, United Utilities and Yorkshire Water.

113

Storm overflows

0

Active right now

5

Monitors offline

1,285

Spill events · 12 months

78,054h

Recorded discharge · 12 months

20

Open discrepancies

Every monitored overflow· 113

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.