Designated bathing water · official register
Nidd at the Lido, Knaresborough
North Yorkshire
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· 24 Jun 2026
430
E. coli · cfu/100ml
82
Intestinal enterococci · cfu/100ml
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.
24
Storm overflows
0
Spilling now
1
Monitors offline
0
Spills · 24 h
- Yorkshire Water · YWS00279 · River Niddoffline987 m
- Yorkshire Water · YWS00278 · River Niddinactive50 m
- Yorkshire Water · YWS00693 · River Niddinactive739 m
- Yorkshire Water · YWS01038 · River Niddinactive780 m
- Yorkshire Water · YWS00277 · River Niddinactive978 m
- Yorkshire Water · YWS00231 · River Nidd (In Middle)inactive1.0 km
- Yorkshire Water · YWS00273 · Mill Stream (Trib Of River Nidd)inactive1.6 km
- Yorkshire Water · YWS00274 · Mill Stream (Trib Of River Nidd)inactive1.6 km
- Yorkshire Water · YWS00276 · Frogmire Dyke (Culverted)(Via Sw. Sewer)inactive1.9 km
- Yorkshire Water · YWS00275 · River Niddinactive1.9 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.