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LakeQuality

Carson Lake

Renfrew, OntarioView mapDirections

Ontario MECP publishes the water-quality measurements for Carson Lake. Here is what has been measured.

Clarity
6.2 m
Secchi · sampled 2025
Max depth
~17.1 m est.
GLOBathy model
  • 56 ft max depth
  • Limited data

Carson Lake in Renfrew, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 6.2 m visibility.

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Carson Lake is a lake in Renfrew County, Ontario with an estimated average depth of about 56 feet.

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 Carson Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water20.3 ft of visibility

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Carson 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.

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Water quality measurements for Carson Lake

These are the measurements Ontario MECP publishes for Carson Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Crystal clear, you can see 20.3 ft down. TSI 34.

MetricValueEPA condition class
Water Clarity (Secchi Depth)6.2 mMeasured, not scored
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)34Oligotrophic

Low nutrients, clear water. No reading is a swimming clearance.

Lake Details

CharacteristicValue
Maximum Depth~17.1 m est.
Average Depth~14 m est.

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Ontario has not published bathymetry for Carson Lake.

Lake Size & Watershed

Watershed (drainage) area
11 sq mi
Surface area
667 acres
Shoreline
5.9 mi
Elevation
978 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.

Fishing Carson Lake

Nearby Lakes in Renfrew

Frequently asked questions about Carson Lake

Ask about Carson Lake

Answers come straight from the public measurements and survey records on this page.

Where is Carson Lake?

Carson Lake is a lake in Renfrew, Ontario. Its water-quality measurements are published by Ontario MECP and shown on this page as reported.

What is the water quality of Carson Lake?

Carson Lake in Renfrew, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 6.2 m visibility.

Is Carson Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

How deep is Carson Lake?

No published bathymetric survey covers Carson Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 56 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.

Where this data comes from

Measurements for Carson 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.

Other records on this page

Lake size & watershed from HydroLAKES (HydroSHEDS)