Is Ryde Lake safe to swim in?

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

Muskoka District County, Ontario · Water Quality Report Card

Ryde Lake

Grade B — Good

Eutrophic

Ryde Lake in Muskoka District, Ontario received a water quality grade of B (Good). Water clarity: 1.5 m visibility. Phosphorus: 19.1 µg/L.

Clarity: 1.5 m
Type: Eutrophic

Where to stay →Safe to swim?

Ryde Lake is a productive, nutrient-rich eutrophic lake in Muskoka District County, Ontario. Water quality is graded B based on 2 sampling years through 2004. Compared to the 169 other monitored lakes in Muskoka District County, Ryde Lake ranks #151 for water quality.

Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2004-05-06. Grade methodology: LakeGrade methodology.

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Murky, only visible to about 4.9 ft. Phosphorus level: 19.1 µg/L. Trophic State Index: 50.

Metric	Value	Grade
Water Clarity (Secchi Depth)	1.5 m	D
Phosphorus	19.1 µg/L	A
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	50	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Ryde Lake

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Fishing Ryde Lake

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

Location

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County Ranking

Ranked #151 of 170 lakes in Muskoka District

Cleaner Lakes Within 30 Miles

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

See full comparison →

Nearby Lakes in Muskoka District

Explore Ryde Lake across LakeGrade

Lake Fishing Forecast

Species activity outlook by water temperature and season

Eutrophic Lakes

High nutrients, frequent algae, reduced clarity

The State of Ontario's Lakes

Ontario's cleanest and most-polluted lakes, ranked

More Ontario Lake Rankings

Cleanest lakes in Ontario

Top 25 by overall water quality score

Clearest lakes in Ontario

Top 25 by Secchi water clarity

Best swimming lakes in Ontario

Grade A/B + low algae filter

Family fishing lakes in Ontario

Panfish-rich, public access

All Ontario lakes

Full state directory

Other Grade B Lakes in Ontario

St John Lake

Simcoe · 2.5 m

Cranberry Lake

Central Ontario · 1.9 m

Long Lake

Simcoe · 2.9 m

Dalrymple Lake

Central Ontario · 2 m

Head Lake

Central Ontario · 3 m

Bass Lake

Simcoe · 3 m

Eutrophic Lakes in Ontario

Maclean Lake Foote Lake Shadow Lake Pine Lake

More records, surveys & data sources

Where this data comes from

Measurements for Ryde 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: 2004-05-06

Monitoring stations:

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