Georgian Bay Lake
Parry Sound District, OntarioView mapDirections
Ontario MECP publishes the water-quality measurements for Georgian Bay Lake. Here is what has been measured.
Georgian Bay Lake in Parry Sound District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 3.5 m visibility. Phosphorus: 11.5 µg/L.
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Georgian Bay Lake is a lake in Parry Sound District County, Ontario.
Source: Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring) — not the EPA Water Quality Portal, last sampled 2025-10-26. Grade methodology: LakeQuality methodology.
What Georgian Bay Lake is good for
From access and monitoring records, not editorial picks.
- Clear water11.5 ft of visibility
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Georgian Bay 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.
Water quality measurements for Georgian Bay Lake
These are the measurements Ontario MECP publishes for Georgian Bay Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 11.5 ft. Phosphorus 11.5 µg/L. TSI 41.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.5 m | Measured, not scored |
| Phosphorus | 11.5 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Fishing Georgian Bay Lake
Nearby Lakes in Parry Sound District
Frequently asked questions about Georgian Bay Lake
Ask about Georgian Bay Lake
Answers come straight from the public measurements and survey records on this page.
Where is Georgian Bay Lake?
- Georgian Bay 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 Georgian Bay Lake?
- Georgian Bay Lake in Parry Sound District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 3.5 m visibility. Phosphorus: 11.5 µg/L.
Is Georgian Bay Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Georgian Bay 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.