Clam Lake
Parry Sound District, OntarioView mapDirections
Ontario MECP publishes the water-quality measurements for Clam Lake. Here is what has been measured.
Clam Lake in Parry Sound District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 4.5 m visibility. Phosphorus: 6.3 µg/L.
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Clam 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 2025-10-20. Grade methodology: LakeQuality methodology.
What Clam Lake is good for
From access and monitoring records, not editorial picks.
- Clear water14.8 ft of visibility
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Clam 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 Clam Lake
These are the measurements Ontario MECP publishes for Clam 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 14.8 ft. Phosphorus 6.3 µg/L. TSI 35.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.5 m | Measured, not scored |
| Phosphorus | 6.3 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 35 | Oligotrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Fishing Clam Lake
Nearby Lakes in Parry Sound District
Frequently asked questions about Clam Lake
Ask about Clam Lake
Answers come straight from the public measurements and survey records on this page.
Where is Clam Lake?
- Clam 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 Clam Lake?
- Clam Lake in Parry Sound District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 4.5 m visibility. Phosphorus: 6.3 µg/L.
Is Clam 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 Clam 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.