Chelmarsh Reservoir Dwpa
Chelmarsh Reservoir Dwpa in Shrops Heref Worcs and Glos, England has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 176 µg/L. Chlorophyll-a (algae): 3.3 µg/L.
Why Chelmarsh Reservoir Dwpa has no A–F grade
Chelmarsh Reservoir Dwpa 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).
Chelmarsh Reservoir Dwpa is a lake in Shrops Heref Worcs and Glos County, England.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2020-03-17. 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 Chelmarsh Reservoir Dwpa
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 176 µg/L. Chlorophyll-a: 3.3 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 176 µg/L | Not graded |
| Chlorophyll-a (Algae) | 3.3 µg/L | Not graded |
| Trophic State Index (TSI) | 61 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Chelmarsh Reservoir Dwpa
Compare lakeside cabins, hotels, and vacation rentals near Chelmarsh Reservoir Dwpa in Shrops Heref Worcs and Glos, 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 Chelmarsh Reservoir Dwpa
Frequently asked questions about Chelmarsh Reservoir Dwpa
What is the water quality of Chelmarsh Reservoir Dwpa?
- Chelmarsh Reservoir Dwpa in Shrops Heref Worcs and Glos, England has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 176 µg/L. Chlorophyll-a (algae): 3.3 µg/L.
Is Chelmarsh Reservoir Dwpa safe to swim in?
- Chelmarsh Reservoir Dwpa 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.
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Where this data comes from
33 measurements from 1 monitoring station, 2016–2020. Retrieved from the Environment Agency (England; not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Environment Agency (England)
ea-wqa33 samples · 2016–2020
Monitoring station identifiers (1)
MD-24542300
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: 2020-03-17
Monitoring stations: 1