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LakeQuality

Sowley Pond Lake

Solent and South Downs, EnglandView mapDirections

EA publishes the water-quality measurements for Sowley Pond Lake. Here is what has been measured.

Phosphorus
100 µg/L
Typical for England
Measured by EA
Chlorophyll-a
34.3 µg/L
More algae than most
Measured by EA
  • Limited data

Sowley Pond Lake in Solent and South Downs, England has official water-quality measurements, shown as reported. Phosphorus: 100 µg/L. Chlorophyll-a (algae): 34.3 µg/L.

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How Sowley Pond Lake is classified

Sowley Pond Lake 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).

Sowley Pond Lake is a lake in Solent and South Downs County, England.

Source: the Environment Agency (England) — not the EPA Water Quality Portal, last sampled 2026-05-07. 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 Sowley Pond Lake 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 Sowley Pond Lake

These are the measurements EA publishes for Sowley Pond Lake. More on the source.

No clarity data. Phosphorus 100 µg/L. Chlorophyll-a 34.3 µg/L. TSI 68.

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 phosphorus100µg/LMeasured, not scored

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

Chlorophyll-a (algae)34.3µg/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.68Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Sowley Pond Lake

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Fishing Sowley Pond Lake

Frequently asked questions about Sowley Pond Lake

Where is Sowley Pond Lake?

Sowley Pond Lake is a lake in Solent and South Downs, England. This page reports official water-quality measurements, shown as reported.

What is the water quality of Sowley Pond Lake?

Sowley Pond Lake in Solent and South Downs, England has official water-quality measurements, shown as reported. Phosphorus: 100 µg/L. Chlorophyll-a (algae): 34.3 µg/L.

Measurements on this page ↑

Is Sowley Pond Lake safe to swim in?

Sowley Pond Lake 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

146 measurements from 1 monitoring station, 2016–2026. Retrieved from the Environment Agency (England; not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • Environment Agency (England)ea-wqa146 samples · 2016–2026
Monitoring station identifiers (1)
  • SO-G0006187

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