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LakeQuality

Oakmere

Gtr Mancs Mersey and Ches, EnglandView mapDirections

EA publishes the water-quality measurements for Oakmere. Here is what has been measured.

Phosphorus
220 µg/L
More phosphorus than most
Measured by EA
Chlorophyll-a
132.5 µg/L
More algae than most
Measured by EA
  • Limited data

Oakmere in Gtr Mancs Mersey and Ches, England has official water-quality measurements, shown as reported. Phosphorus: 220 µg/L. Chlorophyll-a (algae): 132.5 µg/L.

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How Oakmere is classified

Oakmere 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).

Oakmere is a lake in Gtr Mancs Mersey and Ches County, England.

Source: the Environment Agency (England) — not the EPA Water Quality Portal, last sampled 2026-03-03. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Oakmere 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.

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Water quality measurements for Oakmere

These are the measurements EA publishes for Oakmere. More on the source.

No clarity data. Phosphorus 220 µg/L. Chlorophyll-a 132.5 µg/L. TSI 80.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus220µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)133µg/LMeasured, 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.80Hypereutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

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Answers come straight from the public measurements and survey records on this page.

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Fishing Oakmere

Frequently asked questions about Oakmere

Where is Oakmere?

Oakmere 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 Oakmere?

Oakmere in Gtr Mancs Mersey and Ches, England has official water-quality measurements, shown as reported. Phosphorus: 220 µg/L. Chlorophyll-a (algae): 132.5 µg/L.

Measurements on this page ↑

Is Oakmere safe to swim in?

Oakmere 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.

Swimming on this page ↑

Where this data comes from

17 measurements from 1 monitoring station, 2025–2026. Retrieved from the Environment Agency (England; not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • Environment Agency (England)ea-wqa17 samples · 2025–2026
Monitoring station identifiers (1)
  • NW-LSN116

Authority classifications are shown as the authority published them. See where the data comes from and data sources.