St Andrew Lakes
Frontenac, OntarioView mapDirections
Ontario MECP publishes the water-quality measurements for St Andrew Lakes. Here is what has been measured.
St Andrew Lakes in Frontenac, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 3.6 m visibility. Phosphorus: 13.4 µg/L.
St Andrew Lakes is a lake in Frontenac County, Ontario.
Source: Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring) — not the EPA Water Quality Portal, last sampled 2008-10-16. Methodology: how these readings are compared.
What St Andrew Lakes is good for
From access and monitoring records, not editorial picks.
- Clear water11.8 ft of visibility
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether St Andrew Lakes 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 St Andrew Lakes
These are the measurements Ontario MECP publishes for St Andrew Lakes, 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 11.8 ft. Phosphorus 13.4 µg/L. TSI 42.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.6m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 13.4µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 42 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about St Andrew Lakes
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near St Andrew Lakes
Compare lakeside cabins, hotels, and vacation rentals near St Andrew Lakes in Frontenac, 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 St Andrew Lakes
Prices for Nov 6–8, 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 St Andrew Lakes’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing St Andrew Lakes
Nearby Lakes in Frontenac
Frequently asked questions about St Andrew Lakes
Where is St Andrew Lakes?
- St Andrew Lakes is a lake in Frontenac, Ontario. Its water-quality measurements are published by Ontario MECP and shown on this page as reported.
What is the water quality of St Andrew Lakes?
- St Andrew Lakes in Frontenac, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 3.6 m visibility. Phosphorus: 13.4 µg/L.
Is St Andrew Lakes safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore St Andrew Lakes across LakeQuality
More lakes in Ontario
Other Lakes in Ontario
Mesotrophic Lakes in Ontario
Where this data comes from
Measurements for St Andrew Lakes 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.