Receiving watercourse
River Blackwater (Thames Water area)
7 monitored storm overflows on the River Blackwater (Thames Water area) are listed in the National Storm Overflow Hub. Operated by Thames Water.
The data records River Blackwater in more than one place, so it is split across 3 pages. This page is River Blackwater (Thames Water area); see also River Blackwater (Anglian Water area) and River Blackwater (Southern Water area).
7
Storm overflows
0
Active right now
0
Monitors offline
9
Spill events · 12 months
22h
Recorded discharge · 12 months
0
Open discrepancies
Every monitored overflow· 7
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.