Is Pewee Lake safe to swim in?

Good for swimming, clear water with low algae levels. Pewee Lake has an overall water quality grade of B. Always check local health department advisories before swimming.

Nipissing District County, Ontario · Water Quality Report Card

Pewee Lake

Grade B — Good

Mesotrophic

Pewee Lake in Nipissing District, Ontario received a water quality grade of B (Good). Water clarity: 2.1 m visibility. Phosphorus: 8.6 µg/L.

Clarity: 2.1 m
Type: Mesotrophic

Where to stay →Safe to swim?

Pewee Lake is a mesotrophic lake in Nipissing District County, Ontario. Water quality is graded B based on 2 sampling years through 2002. Compared to the 280 other monitored lakes in Nipissing District County, Pewee Lake ranks #176 for water quality.

Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2002-05-30. Grade methodology: LakeGrade methodology.

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Moderate clarity, visible to about 6.9 ft. Phosphorus level: 8.6 µg/L. Trophic State Index: 42.

Metric	Value	Grade
Water Clarity (Secchi Depth)	2.1 m	C
Phosphorus	8.6 µg/L	A
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	42	Mesotrophic

Moderate nutrients, good water quality

Where to stay near Pewee Lake

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Fishing Pewee Lake

→ Pewee Lake fishing regulations (limits, seasons, special rules)

Location

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County Ranking

Ranked #176 of 281 lakes in Nipissing District

Cleaner Lakes Within 30 Miles

Pewee Lake holds Grade B. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Nipissing District

Explore Pewee Lake across LakeGrade

Lake Fishing Forecast

Species activity outlook by water temperature and season

Mesotrophic Lakes

Moderate nutrients, good water quality

The State of Ontario's Lakes

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Top 25 by overall water quality score

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Top 25 by Secchi water clarity

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Grade A/B + low algae filter

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Panfish-rich, public access

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Full state directory

Other Grade B Lakes in Ontario

Haliburton · 6 m

Haliburton · 2.9 m

Haliburton · 2.6 m

Haliburton · 2.1 m

Haliburton · 2.4 m

Haliburton · 2.9 m

Mesotrophic Lakes in Ontario

Cecil Lake Rock Lake Rosepond Lake Little Galipo Lake

More records, surveys & data sources

Where this data comes from

Measurements for Pewee Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.

Data Sources

Water quality data from the EPA Water Quality Portal

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion

Most recent sample: 2002-05-30

Monitoring stations:

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