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LakeQuality

The Tarn Suffield Lane

West Thames, EnglandView mapDirections

EA publishes the water-quality measurements for The Tarn Suffield Lane. Here is what has been measured.

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

The Tarn Suffield Lane in West Thames, England has official water-quality measurements, shown as reported. Phosphorus: 96.5 µg/L. Chlorophyll-a (algae): 39.5 µg/L.

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How The Tarn Suffield Lane is classified

The Tarn Suffield Lane 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).

The Tarn Suffield Lane is a lake in West Thames County, England.

Source: the Environment Agency (England) — not the EPA Water Quality Portal, last sampled 2026-07-07. 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 The Tarn Suffield Lane 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 The Tarn Suffield Lane

These are the measurements EA publishes for The Tarn Suffield Lane. More on the source.

No clarity data. Phosphorus 96.5 µg/L. Chlorophyll-a 39.5 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 phosphorus96.5µg/LMeasured, not scored

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

Chlorophyll-a (algae)39.5µg/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 The Tarn Suffield Lane

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

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Fishing The Tarn Suffield Lane

Frequently asked questions about The Tarn Suffield Lane

Where is The Tarn Suffield Lane?

The Tarn Suffield Lane is a lake in West Thames, England. This page reports official water-quality measurements, shown as reported.

What is the water quality of The Tarn Suffield Lane?

The Tarn Suffield Lane in West Thames, England has official water-quality measurements, shown as reported. Phosphorus: 96.5 µg/L. Chlorophyll-a (algae): 39.5 µg/L.

Measurements on this page ↑

Is The Tarn Suffield Lane safe to swim in?

The Tarn Suffield Lane 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

8 measurements from 1 monitoring station, 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-wqa8 samples · 2026
Monitoring station identifiers (1)
  • TH-LSN0197

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