Hamilton Lake
Thunder Bay District, OntarioView mapDirections
Ontario MECP publishes the water-quality measurements for Hamilton Lake. Here is what has been measured.
Hamilton Lake in Thunder Bay District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 2.8 m visibility. Phosphorus: 6.4 µg/L.
Stays via Stay22
Stays near Hamilton Lake
Compare lakeside cabins, hotels, and vacation rentals near Hamilton Lake in Thunder Bay District, 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 Hamilton 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 Hamilton Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Hamilton Lake is a lake in Thunder Bay District County, Ontario.
Source: Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring) — not the EPA Water Quality Portal, last sampled 2009-05-27. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Hamilton 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 Hamilton Lake
These are the measurements Ontario MECP publishes for Hamilton Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 9.2 ft. Phosphorus 6.4 µg/L. TSI 38.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.8 m | Measured, not scored |
| Phosphorus | 6.4 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Fishing Hamilton Lake
Nearby Lakes in Thunder Bay District
Frequently asked questions about Hamilton Lake
Ask about Hamilton Lake
Answers come straight from the public measurements and survey records on this page.
Where is Hamilton Lake?
- Hamilton Lake is a lake in Thunder Bay District, Ontario. Its water-quality measurements are published by Ontario MECP and shown on this page as reported.
What is the water quality of Hamilton Lake?
- Hamilton Lake in Thunder Bay District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 2.8 m visibility. Phosphorus: 6.4 µg/L.
Is Hamilton Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Hamilton Lake across LakeQuality
More lakes in Ontario
Other Lakes in Ontario
Oligotrophic Lakes in Ontario
Where this data comes from
Measurements for Hamilton 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.