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LakeQuality

High Newton Reservoir

Cumbria and Lancashire, EnglandView mapDirections

EA publishes the water-quality measurements for High Newton Reservoir. Here is what has been measured.

Phosphorus
14.5 µg/L
Less phosphorus than most
Measured by EA
Chlorophyll-a
4 µg/L
Less algae than most
Measured by EA
  • Limited data

High Newton Reservoir in Cumbria and Lancashire, England has official water-quality measurements, shown as reported. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 4 µg/L.

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How High Newton Reservoir is classified

High Newton 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).

High Newton Reservoir is a lake in Cumbria and Lancashire County, England.

Source: the Environment Agency (England) — not the EPA Water Quality Portal, last sampled 2026-07-09. 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 High Newton 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.

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Water quality measurements for High Newton Reservoir

These are the measurements EA publishes for High Newton Reservoir. More on the source.

No clarity data. Phosphorus 14.5 µg/L. Chlorophyll-a 4 µg/L. TSI 43.

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 phosphorus14.5µg/LMeasured, not scored

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

Chlorophyll-a (algae)4µg/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.43Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

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Frequently asked questions about High Newton Reservoir

Where is High Newton Reservoir?

High Newton Reservoir is a lake in Cumbria and Lancashire, England. This page reports official water-quality measurements, shown as reported.

What is the water quality of High Newton Reservoir?

High Newton Reservoir in Cumbria and Lancashire, England has official water-quality measurements, shown as reported. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 4 µg/L.

Measurements on this page ↑

Is High Newton Reservoir safe to swim in?

High Newton 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.

Swimming on this page ↑

Where this data comes from

22 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-wqa22 samples · 2025–2026
Monitoring station identifiers (1)
  • NW-LSN380

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