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Grimsthorpe Lake

Renfrew, OntarioView mapDirections

Ontario MECP publishes the water-quality measurements for Grimsthorpe Lake. Here is what has been measured.

Phosphorus
13.6 µg/L
Measured by Ontario MECP
  • Limited data

Grimsthorpe Lake in Renfrew, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Phosphorus: 13.6 µg/L.

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Grimsthorpe Lake is a lake in Renfrew County, Ontario.

Source: Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring) — not the EPA Water Quality Portal, last sampled 2024-05-16. Grade methodology: LakeQuality methodology.

Swimming conditions

No reading

Limited data

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

Whether Grimsthorpe Lake is safe to swim in today is a call for the Ontario Ministry of the Environment, Conservation and Parks and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Grimsthorpe Lake

These are the measurements Ontario MECP publishes for Grimsthorpe Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. Phosphorus 13.6 µg/L. TSI 42.

MetricValueEPA condition class
Water Clarity (Secchi Depth)No recent samples
Phosphorus13.6 µg/LMeasured, not scored
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)42Mesotrophic

Moderate nutrients, good water quality

Fishing Grimsthorpe Lake

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Frequently asked questions about Grimsthorpe Lake

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

Where is Grimsthorpe Lake?

Grimsthorpe Lake is a lake in Renfrew, Ontario. Its water-quality measurements are published by Ontario MECP and shown on this page as reported.

What is the water quality of Grimsthorpe Lake?

Grimsthorpe Lake in Renfrew, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Phosphorus: 13.6 µg/L.

Is Grimsthorpe Lake safe to swim in?

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

Where this data comes from

Measurements for Grimsthorpe Lake come from Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring), not the EPA Water Quality Portal. Per-sample source details are not recorded for this lake. Contains information licensed under the Open Government Licence – Ontario. See data sources.