Carlton Ponds
Carlton Ponds in Yorkshire, England has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 280 µg/L. Chlorophyll-a (algae): 11.8 µg/L.
Why Carlton Ponds has no A–F grade
Carlton Ponds 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).
Carlton Ponds is a lake in Yorkshire County, England.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2026-07-10. 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 Carlton Ponds
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 280 µg/L. Chlorophyll-a: 11.8 µg/L. Trophic State Index: 70.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 280 µg/L | Not graded |
| Chlorophyll-a (Algae) | 11.8 µg/L | Not graded |
| Trophic State Index (TSI) | 70 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Carlton Ponds
Compare lakeside cabins, hotels, and vacation rentals near Carlton Ponds in Yorkshire, 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 Carlton Ponds
Frequently asked questions about Carlton Ponds
What is the water quality of Carlton Ponds?
- Carlton Ponds in Yorkshire, England has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 280 µg/L. Chlorophyll-a (algae): 11.8 µg/L.
Is Carlton Ponds safe to swim in?
- Carlton Ponds 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 Carlton Ponds across LakeGrade
More lakes in England
Where this data comes from
8 measurements from 1 monitoring station, 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-wqa8 samples · 2026
Monitoring station identifiers (1)
NE-LSN0399
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: 2026-07-10
Monitoring stations: 1