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LakeQuality

Three Legged Lake

Parry Sound District, OntarioView mapDirections

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

Clarity
5.7 m
Secchi · sampled 2025
Phosphorus
4.4 µg/L
Measured by Ontario MECP
Max depth
~16.8 m est.
GLOBathy model
  • 55 ft max depth

Three Legged Lake in Parry Sound District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 5.7 m visibility. Phosphorus: 4.4 µg/L.

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Three Legged Lake is a lake in Parry Sound District County, Ontario with an estimated average depth of about 55 feet.

Source: Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring) — not the EPA Water Quality Portal, last sampled 2025-05-30. Grade methodology: LakeQuality methodology.

What Three Legged Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water18.7 ft of visibility

Swimming conditions

No reading

Not rated

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

Whether Three Legged 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 Three Legged Lake

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

Crystal clear, you can see 18.7 ft down. Phosphorus 4.4 µg/L. TSI 30.

MetricValueEPA condition class
Water Clarity (Secchi Depth)5.7 mMeasured, not scored
Phosphorus4.4 µg/LMeasured, not scored
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)30Oligotrophic

Low nutrients, clear water. No reading is a swimming clearance.

Lake Details

CharacteristicValue
Maximum Depth~16.8 m est.
Average Depth~6.4 m est.

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Ontario has not published bathymetry for Three Legged Lake.

Lake Size & Watershed

Watershed (drainage) area
6 sq mi
Surface area
462 acres
Shoreline
12.9 mi
Elevation
653 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.

Fishing Three Legged Lake

Nearby Lakes in Parry Sound District

Frequently asked questions about Three Legged Lake

Ask about Three Legged Lake

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

Where is Three Legged Lake?

Three Legged Lake is a lake in Parry Sound District, Ontario. Its water-quality measurements are published by Ontario MECP and shown on this page as reported.

What is the water quality of Three Legged Lake?

Three Legged Lake in Parry Sound District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 5.7 m visibility. Phosphorus: 4.4 µg/L.

Is Three Legged Lake safe to swim in?

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

How deep is Three Legged Lake?

No published bathymetric survey covers Three Legged Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 55 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.

Where this data comes from

Measurements for Three Legged 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.

Other records on this page

Lake size & watershed from HydroLAKES (HydroSHEDS)