Dowry Reservoir
Gtr Mancs Mersey and Ches, EnglandView mapDirections
EA publishes the water-quality measurements for Dowry Reservoir. Here is what has been measured.
- Limited data
Dowry Reservoir in Gtr Mancs Mersey and Ches, England has official water-quality measurements, shown as reported. Phosphorus: 14.2 µg/L. Chlorophyll-a (algae): 2.6 µg/L.
How Dowry Reservoir is classified
Dowry Reservoir 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).
Dowry Reservoir is a lake in Gtr Mancs Mersey and Ches County, England.
Source: the Environment Agency (England) — not the EPA Water Quality Portal, last sampled 2020-01-22. 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 Dowry Reservoir 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 Dowry Reservoir
These are the measurements EA publishes for Dowry Reservoir. More on the source.
No clarity data. Phosphorus 14.2 µg/L. Chlorophyll-a 2.6 µg/L. TSI 41.
| 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 | 14.2µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 2.6µg/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. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Frequently asked questions about Dowry Reservoir
Where is Dowry Reservoir?
- Dowry Reservoir is a lake in Gtr Mancs Mersey and Ches, England. This page reports official water-quality measurements, shown as reported.
What is the water quality of Dowry Reservoir?
- Dowry Reservoir in Gtr Mancs Mersey and Ches, England has official water-quality measurements, shown as reported. Phosphorus: 14.2 µg/L. Chlorophyll-a (algae): 2.6 µg/L.
Is Dowry Reservoir safe to swim in?
- Dowry Reservoir 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
34 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-wqa34 samples · 2016–2020
Monitoring station identifiers (1)
NW-88017510
Authority classifications are shown as the authority published them. See where the data comes from and data sources.