Ennerdale Water
Cumbria and Lancashire, EnglandView mapDirections
EA publishes the water-quality measurements for Ennerdale Water. Here is what has been measured.
- Limited data
Ennerdale Water in Cumbria and Lancashire, England has official water-quality measurements, shown as reported. Phosphorus: 3.1 µg/L. Chlorophyll-a (algae): 1.5 µg/L.
How Ennerdale Water is classified
Ennerdale Water in England is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Environment Agency (England).
Ennerdale Water is a lake in Cumbria and Lancashire County, England.
Source: the Environment Agency (England) — not the EPA Water Quality Portal, last sampled 2026-05-20. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Ennerdale Water is safe to swim in today is a call for the Environment Agency (England) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Ennerdale Water
These are the measurements EA publishes for Ennerdale Water. More on the source.
No clarity data. Phosphorus 3.1 µg/L. Chlorophyll-a 1.5 µg/L. TSI 27.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 3.1µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 1.5µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 27 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Ennerdale Water
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Ennerdale Water
Compare lakeside cabins, hotels, and vacation rentals near Ennerdale Water in Cumbria and Lancashire, England — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Ennerdale Water
Prices for Oct 2–4, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Ennerdale Water’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Ennerdale Water
Frequently asked questions about Ennerdale Water
Where is Ennerdale Water?
- Ennerdale Water is a lake in Cumbria and Lancashire, England. This page reports official water-quality measurements, shown as reported.
What is the water quality of Ennerdale Water?
- Ennerdale Water in Cumbria and Lancashire, England has official water-quality measurements, shown as reported. Phosphorus: 3.1 µg/L. Chlorophyll-a (algae): 1.5 µg/L.
Is Ennerdale Water safe to swim in?
- Ennerdale Water has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
Explore Ennerdale Water across LakeQuality
More lakes in England
Where this data comes from
148 measurements from 1 monitoring station, 2016–2026. Retrieved from the Environment Agency (England; not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Environment Agency (England)
ea-wqa148 samples · 2016–2026
Monitoring station identifiers (1)
NW-88005133
Authority classifications are shown as the authority published them. See where the data comes from and data sources.