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LakeQuality

Ottermere Lake

Kenora District, OntarioView mapDirections

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

Phosphorus
19.2 µg/L
More phosphorus than most
Measured by Ontario MECP
Max depth
~8.5 m est.
GLOBathy model
  • 28 ft max depth
  • Limited data

Ottermere Lake in Kenora District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Phosphorus: 19.2 µg/L.

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Ottermere Lake is a lake in Kenora District County, Ontario with an estimated average depth of about 28 feet.

Source: Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring) — not the EPA Water Quality Portal, last sampled 2025-08-01. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

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

Whether Ottermere 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 Ottermere Lake

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

No clarity data. Phosphorus 19.2 µg/L. TSI 47.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus19.2µg/LMeasured, 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.47Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

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Lake Details

Max depth

~8.5 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 Ottermere Lake.

Lake Size & Watershed

Watershed (drainage) area

97 sq mi

HydroLAKES / HydroSHEDS

Surface area

351 acres

HydroLAKES / HydroSHEDS

Shoreline

5.2 mi

HydroLAKES / HydroSHEDS

Elevation

1,076 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.

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Stays near Ottermere Lake

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Frequently asked questions about Ottermere Lake

Where is Ottermere Lake?

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

What is the water quality of Ottermere Lake?

Ottermere Lake in Kenora District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Phosphorus: 19.2 µg/L.

Measurements on this page ↑

Is Ottermere Lake safe to swim in?

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

Swimming on this page ↑

How deep is Ottermere Lake?

No published bathymetric survey covers Ottermere Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 28 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 Ottermere 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)