Receiving watercourse
River Calder
82 monitored storm overflows on the River Calder are listed in the National Storm Overflow Hub. Operated by Yorkshire Water.
The data records River Calder in more than one place, so it is split across 2 pages. This page is River Calder; see also River Calder (United Utilities area).
82
Storm overflows
0
Active right now
0
Monitors offline
1,321
Spill events · 12 months
3,134h
Recorded discharge · 12 months
1
Open discrepancies
Every monitored overflow· 82
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- YWS01499Yorkshire Waterinactive
- YWS01395Yorkshire Waterinactive
- YWS00830Yorkshire Waterinactive
- YWS01145Yorkshire Waterinactive
- YWS01769Yorkshire Waterinactive
- YWS01767Yorkshire Waterinactive
- YWS01305Yorkshire Waterinactive
- YWS00141Yorkshire Waterinactive
- YWS01804Yorkshire Waterinactive
- YWS00647Yorkshire Waterinactive
- YWS01030Yorkshire Waterinactive
- YWS02151Yorkshire Waterinactive
- YWS01829Yorkshire Waterinactive
- YWS00665Yorkshire Waterinactive
- YWS01768Yorkshire Waterinactive
- YWS00971Yorkshire Waterinactive
- YWS00952Yorkshire Waterinactive
- YWS01777Yorkshire Waterinactive
- YWS01173Yorkshire Waterinactive
- YWS00668Yorkshire Waterinactive
- YWS01963Yorkshire Waterinactive
- YWS01313Yorkshire Waterinactive
- YWS01757Yorkshire Waterinactive
- YWS00953Yorkshire Waterinactive
- YWS01751Yorkshire Waterinactive
- YWS00005Yorkshire Waterinactive
- YWS02007Yorkshire Waterinactive
- YWS01953Yorkshire Waterinactive
- YWS02119Yorkshire Waterinactive
- YWS02120Yorkshire Waterinactive
- YWS00817Yorkshire Waterinactive
- YWS00832Yorkshire Waterinactive
- YWS00889Yorkshire Waterinactive
- YWS01857Yorkshire Waterinactive
- YWS00831Yorkshire Waterinactive
- YWS00925Yorkshire Waterinactive
- YWS01397Yorkshire Waterinactive
- YWS01860Yorkshire Waterinactive
- YWS00827Yorkshire Waterinactive
- YWS02063Yorkshire Waterinactive
- YWS01105Yorkshire Waterinactive
- YWS00926Yorkshire Waterinactive
- YWS01164Yorkshire Waterinactive
- YWS02210Yorkshire Waterinactive
- YWS00936Yorkshire Waterinactive
- YWS00833Yorkshire Waterinactive
- YWS00890Yorkshire Waterinactive
- YWS00844Yorkshire Waterinactive
- YWS00648Yorkshire Waterinactive
- YWS01184Yorkshire Waterinactive
- YWS00667Yorkshire Waterinactive
- YWS01962Yorkshire Waterinactive
- YWS01023Yorkshire Waterinactive
- YWS00816Yorkshire Waterinactive
- YWS00875Yorkshire Waterinactive
- YWS01287Yorkshire Waterinactive
- YWS01360Yorkshire Waterinactive
- YWS01320Yorkshire Waterinactive
- YWS01124Yorkshire Waterinactive
- YWS00089Yorkshire Waterinactive
- YWS02008Yorkshire Waterinactive
- YWS01284Yorkshire Waterinactive
- YWS01420Yorkshire Waterinactive
- YWS00815Yorkshire Waterinactive
- YWS00910Yorkshire Waterinactive
- YWS02062Yorkshire Waterinactive
- YWS01314Yorkshire Waterinactive
- YWS01308Yorkshire Waterinactive
- YWS01385Yorkshire Waterinactive
- YWS02152Yorkshire Waterinactive
- YWS02121Yorkshire Waterinactive
- YWS00922Yorkshire Waterinactive
- YWS02212Yorkshire Waterinactive
- YWS02130Yorkshire Waterinactive
- YWS00856Yorkshire Waterinactive
- YWS00993Yorkshire Waterinactive
- YWS02233Yorkshire Waterinactive
- YWS01202Yorkshire Waterinactive
- YWS00666Yorkshire Waterinactive
- YWS02234Yorkshire Waterinactive
- YWS01491Yorkshire Waterinactive
- YWS01143Yorkshire Waterinactive
Seen something?
Sewage debris, foam, dead fish — citizen sightings are cross-referenced against the official discharge data above and strengthen the public record.