Designated bathing water · official register
Derwent Water at Crow Park
Cumberland
The Environment Agency data currently advises against bathing here. Based on the EA classification Poor (2025) and no active short-term pollution warning.
Latest EA sample· 13 Sept 2026
630
E. coli · cfu/100ml
320
Intestinal enterococci · cfu/100ml
This season's samples
In-season Environment Agency lab results, newest first. Water quality is more likely to be poor after heavy rain.
| Sampled | E. coli | Int. enterococci |
|---|---|---|
| 13 Sept 2026 | 630 | 320 |
| 7 Sept 2026 | 220 | 280 |
| 25 Jun 2026 | 200 | 27 |
cfu/100ml. ≥/≤ mark over- and under-range lab readings.
Storm overflows within 5.0 km
Monitored sewage discharge points near this bathing water, from the National Storm Overflow Hub. An active spill upstream can affect water quality before it shows up in lab samples.
8
Storm overflows
0
Spilling now
0
Monitors offline
0
Spills · 24 h
- United Utilities · UUP01617 · River Gretainactive890 m
- United Utilities · UUP01536 · River Gretainactive1.3 km
- United Utilities · UUP01927 · River Derwentinactive1.6 km
- United Utilities · UUP00067 · Applethwaite Gillinactive2.3 km
- United Utilities · UUP01117 · River Gretainactive1.7 km
- United Utilities · UUP01565 · Pow Beckinactive2.0 km
- United Utilities · UUP01060 · River Derwentinactive2.6 km
- United Utilities · UUP00301 · Braithwaite Main Soughinactive3.1 km
About this verdict
The classification, lab samples and pollution warnings above are the Environment Agency's own published data for this designated site; River Truth adds live storm-overflow context from the National Storm Overflow Hub. Sample results reflect water quality at the time of testing and this page is not formal bathing advice — heed any on-site signage.