Clarke Lake
York Region, OntarioView mapDirections
Ontario MECP publishes the water-quality measurements for Clarke Lake. Here is what has been measured.
- Limited data
Clarke Lake in York Region, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 1.3 m visibility.
Stays via Stay22
Stays near Clarke Lake
Compare lakeside cabins, hotels, and vacation rentals near Clarke Lake in York Region, Ontario — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Clarke Lake
Prices for Sep 18–20, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Clarke Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Clarke Lake is a lake in York Region County, Ontario.
Source: Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring) — not the EPA Water Quality Portal, last sampled 1999-07-04. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Clarke 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 Clarke Lake
These are the measurements Ontario MECP publishes for Clarke Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4.3 ft. TSI 56.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.3 m | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing Clarke Lake
Nearby Lakes in York Region
Frequently asked questions about Clarke Lake
Ask about Clarke Lake
Answers come straight from the public measurements and survey records on this page.
Where is Clarke Lake?
- Clarke Lake is a lake in York Region, Ontario. Its water-quality measurements are published by Ontario MECP and shown on this page as reported.
What is the water quality of Clarke Lake?
- Clarke Lake in York Region, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 1.3 m visibility.
Is Clarke Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Clarke Lake across LakeQuality
More lakes in Ontario
Other Lakes in Ontario
Eutrophic Lakes in Ontario
Where this data comes from
Measurements for Clarke 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.