North Corner ? Willow Pool
North Corner ? Willow Pool in West Thames, England has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 7.4 µg/L.
Why North Corner ? Willow Pool has no A–F grade
North Corner ? Willow Pool in England is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the Environment Agency (England).
North Corner ? Willow Pool is a lake in West Thames County, England.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2026-06-15. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for North Corner ? Willow Pool
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 20 µg/L. Chlorophyll-a: 7.4 µg/L. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 20 µg/L | Not graded |
| Chlorophyll-a (Algae) | 7.4 µg/L | Not graded |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near North Corner ? Willow Pool
Compare lakeside cabins, hotels, and vacation rentals near North Corner ? Willow Pool in West Thames, 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.
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Fishing North Corner ? Willow Pool
Frequently asked questions about North Corner ? Willow Pool
What is the water quality of North Corner ? Willow Pool?
- North Corner ? Willow Pool in West Thames, England has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 7.4 µg/L.
Is North Corner ? Willow Pool safe to swim in?
- North Corner ? Willow Pool 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 North Corner ? Willow Pool across LakeGrade
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Where this data comes from
24 measurements from 1 monitoring station, 2024–2026. Retrieved from the Environment Agency (England; not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Environment Agency (England)
ea-wqa24 samples · 2024–2026
Monitoring station identifiers (1)
TH-LSN0013
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2026-06-15
Monitoring stations: 1