Receiving watercourse
River Calder
89 monitored storm overflows record River Calder as their receiving watercourse in the National Storm Overflow Hub. Operated by United Utilities and Yorkshire Water.
89
Storm overflows
0
Active right now
2
Monitors offline
1,162
Spill events · 12 months
242,838h
Recorded discharge · 12 months
23
Open discrepancies
Every monitored overflow· 89
Each links to its full record — spill history, nearby water-quality sampling, citizen reports, and pre-filled accountability letters.
- YWS00648Yorkshire Wateroffline
- YWS02062Yorkshire Wateroffline
- UUP01850United Utilitiesinactive
- YWS00817Yorkshire Waterinactive
- YWS01395Yorkshire Waterinactive
- YWS00832Yorkshire Waterinactive
- YWS00831Yorkshire Waterinactive
- YWS02151Yorkshire Waterinactive
- YWS01397Yorkshire Waterinactive
- YWS01963Yorkshire Waterinactive
- YWS01829Yorkshire Waterinactive
- YWS00665Yorkshire Waterinactive
- YWS00668Yorkshire Waterinactive
- YWS00141Yorkshire Waterinactive
- YWS00952Yorkshire Waterinactive
- YWS01751Yorkshire Waterinactive
- YWS00005Yorkshire Waterinactive
- YWS02119Yorkshire Waterinactive
- YWS02120Yorkshire Waterinactive
- YWS01030Yorkshire Waterinactive
- YWS02007Yorkshire Waterinactive
- YWS01860Yorkshire Waterinactive
- YWS01145Yorkshire Waterinactive
- YWS01164Yorkshire Waterinactive
- YWS00827Yorkshire Waterinactive
- YWS00833Yorkshire Waterinactive
- UUP00239United Utilitiesinactive
- YWS01857Yorkshire Waterinactive
- YWS01305Yorkshire Waterinactive
- YWS00647Yorkshire Waterinactive
- UUP00576United Utilitiesinactive
- UUP00107United Utilitiesinactive
- YWS01804Yorkshire Waterinactive
- YWS02210Yorkshire Waterinactive
- YWS00936Yorkshire Waterinactive
- UUP01466United Utilitiesinactive
- UUP01023United Utilitiesinactive
- YWS01313Yorkshire Waterinactive
- UUP00083United Utilitiesinactive
- YWS01287Yorkshire Waterinactive
- UUP00985United Utilitiesinactive
- YWS01953Yorkshire Waterinactive
- YWS00953Yorkshire Waterinactive
- UUP01655United Utilitiesinactive
- UUP01184United Utilitiesinactive
- YWS01173Yorkshire Waterinactive
- UUP01013United Utilitiesinactive
- YWS00830Yorkshire Waterinactive
- UUP01757United Utilitiesinactive
- YWS00889Yorkshire Waterinactive
- YWS01777Yorkshire Waterinactive
- YWS01757Yorkshire Waterinactive
- YWS00925Yorkshire Waterinactive
- YWS01023Yorkshire Waterinactive
- UUP00390United Utilitiesinactive
- YWS01105Yorkshire Waterinactive
- YWS02063Yorkshire Waterinactive
- YWS00890Yorkshire Waterinactive
- YWS00667Yorkshire Waterinactive
- UUP02103United Utilitiesinactive
- YWS00926Yorkshire Waterinactive
- YWS00971Yorkshire Waterinactive
- YWS01320Yorkshire Waterinactive
- YWS01124Yorkshire Waterinactive
- YWS00089Yorkshire Waterinactive
- YWS01962Yorkshire Waterinactive
- YWS01284Yorkshire Waterinactive
- YWS01420Yorkshire Waterinactive
- YWS00815Yorkshire Waterinactive
- YWS00816Yorkshire Waterinactive
- YWS00910Yorkshire Waterinactive
- YWS01314Yorkshire Waterinactive
- YWS01308Yorkshire Waterinactive
- YWS01385Yorkshire Waterinactive
- YWS02152Yorkshire Waterinactive
- YWS00875Yorkshire Waterinactive
- YWS01360Yorkshire Waterinactive
- UUP01513United Utilitiesinactive
- UUP01755United Utilitiesinactive
- YWS02121Yorkshire Waterinactive
- YWS00922Yorkshire Waterinactive
- YWS02130Yorkshire Waterinactive
- YWS00856Yorkshire Waterinactive
- YWS00993Yorkshire Waterinactive
- YWS02233Yorkshire Waterinactive
- YWS01202Yorkshire Waterinactive
- YWS00666Yorkshire 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.