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Ravensthorpe Reservoir

Lincs and Northants, EnglandView mapDirections

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

Phosphorus
25.9 µg/L
Typical for England
Measured by EA
Chlorophyll-a
5.1 µg/L
Typical for England
Measured by EA
  • Limited data

Ravensthorpe Reservoir in Lincs and Northants, England has official water-quality measurements, shown as reported. Phosphorus: 25.9 µg/L. Chlorophyll-a (algae): 5.1 µg/L.

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How Ravensthorpe Reservoir is classified

Ravensthorpe 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).

Ravensthorpe Reservoir is a lake in Lincs and Northants County, England.

Source: the Environment Agency (England) — not the EPA Water Quality Portal, last sampled 2026-07-14. 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 Ravensthorpe 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 Ravensthorpe Reservoir

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

No clarity data. Phosphorus 25.9 µg/L. Chlorophyll-a 5.1 µg/L. TSI 49.

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 phosphorus25.9µg/LMeasured, not scored

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

Chlorophyll-a (algae)5.1µg/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.49Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

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

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Fishing Ravensthorpe Reservoir

Frequently asked questions about Ravensthorpe Reservoir

Where is Ravensthorpe Reservoir?

Ravensthorpe Reservoir is a lake in Lincs and Northants, England. This page reports official water-quality measurements, shown as reported.

What is the water quality of Ravensthorpe Reservoir?

Ravensthorpe Reservoir in Lincs and Northants, England has official water-quality measurements, shown as reported. Phosphorus: 25.9 µg/L. Chlorophyll-a (algae): 5.1 µg/L.

Measurements on this page ↑

Is Ravensthorpe Reservoir safe to swim in?

Ravensthorpe 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

143 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-wqa143 samples · 2016–2026
Monitoring station identifiers (1)
  • AN-RAVENWFD

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