Silverwings Lake
Silverwings Lake in Herts and North London, England has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 34 µg/L. Chlorophyll-a (algae): 4.3 µg/L.
Why Silverwings Lake has no A–F grade
Silverwings Lake 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).
Silverwings Lake is a lake in Herts and North London County, England.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-02-15. Grade methodology: LakeGrade methodology.
Watch Silverwings Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Silverwings Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 34 µg/L. Chlorophyll-a: 4.3 µg/L. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 34 µg/L | Not graded |
| Chlorophyll-a (Algae) | 4.3 µg/L | Not graded |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Silverwings Lake
Compare lakeside cabins, hotels, and vacation rentals near Silverwings Lake in Herts and North London, 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 Silverwings Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Silverwings Lake
Frequently asked questions about Silverwings Lake
What is the water quality of Silverwings Lake?
- Silverwings Lake in Herts and North London, England has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 34 µg/L. Chlorophyll-a (algae): 4.3 µg/L.
Is Silverwings Lake safe to swim in?
- Silverwings Lake 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 Silverwings Lake across LakeGrade
More lakes in England
Where this data comes from
30 measurements from 1 monitoring station, 2019–2024. Retrieved from the Environment Agency (England; not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Environment Agency (England)
ea-wqa30 samples · 2019–2024
Monitoring station identifiers (1)
TH-PRTS0021
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: 2024-02-15
Monitoring stations: 1