Is Oba Lake safe to swim in?

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

Algoma District County, Ontario · Water Quality Report Card

Oba Lake

Grade B — Good

Mesotrophic

Oba Lake in Algoma District, Ontario received a water quality grade of B (Good). Water clarity: 2.5 m visibility. Phosphorus: 8.4 µg/L.

Clarity: 2.5 m
Type: Mesotrophic

Where to stay →Safe to swim?

Oba Lake is a mesotrophic lake in Algoma District County, Ontario. Water quality is graded B based on 2 sampling years through 2016. Compared to the 217 other monitored lakes in Algoma District County, Oba Lake ranks #180 for water quality.

Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2016-05-16. 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 8.2 ft. Phosphorus level: 8.4 µg/L. Trophic State Index: 41.

Metric	Value	Grade
Water Clarity (Secchi Depth)	2.5 m	C
Phosphorus	8.4 µg/L	A
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	41	Mesotrophic

Moderate nutrients, good water quality

Where to stay near Oba Lake

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Fishing Oba Lake

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

Location

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County Ranking

Ranked #180 of 218 lakes in Algoma District

Cleaner Lakes Within 30 Miles

Oba Lake holds Grade B. 2 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Algoma District

Explore Oba 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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Cleanest lakes in Ontario

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

All Ontario lakes

Full state directory

Other Grade B Lakes in Ontario

Missinabi Lake

Sudbury District · 2.3 m

Goldie Lake

Sudbury District · 2.8 m

Prairie Bee Lake

Sudbury District · 2.4 m

Windermere Lake

Sudbury District · 2.1 m

Big Pike Lake

Cochrane District · 3 m

Floranna Lake

Sudbury District · 2.3 m

Mesotrophic Lakes in Ontario

Windermere Lake Floranna Lake Fushimi Lake Hanlan Lake

More records, surveys & data sources

Where this data comes from

Measurements for Oba 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: 2016-05-16

Monitoring stations:

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