Sudbury District County, Ontario · Water Quality Report Card
Bethel Lake
Bethel Lake in Sudbury District, Ontario received a water quality grade of D (Poor). Water clarity: 1.4 m visibility.
- Clarity
- 1.4 m
- Type
- Eutrophic
Bethel Lake is a productive, nutrient-rich eutrophic lake in Sudbury District County, Ontario. Water quality is graded D based on 1 sampling years through 2025. Compared to the 264 other monitored lakes in Sudbury District County, Bethel Lake ranks #262 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2025-05-21. Grade methodology: LakeGrade methodology.
Watch Bethel Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 4.4 ft. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.35 m | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Bethel Lake
Compare lakeside cabins, hotels, and vacation rentals near Bethel Lake in Sudbury District, Ontario — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Bethel Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Bethel Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Bethel Lake — straight to your inbox. No spam, unsubscribe anytime.
Fishing Bethel Lake
Location
County Ranking
Ranked #262 of 265 lakes in Sudbury District
Cleaner Lakes Within 30 Miles
Bethel Lake holds Grade D. 5 nearby lakes hold higher grades.
- ARamsey LakeSudbury District · 0.8 mi · Two grade letters higher (D → A)
- ANepahwin LakeSudbury District · 1.7 mi · Two grade letters higher (D → A)
- ARichard LakeSudbury District · 3.2 mi · Two grade letters higher (D → A)
- CMinnow LakeSudbury District · 1.5 mi · Higher grade (D → C)
- CRobinson LakeSudbury District · 3.4 mi · Higher grade (D → C)
Nearby Lakes in Sudbury District
Explore Bethel Lake across LakeGrade
More Ontario Lake Rankings
Other Grade D Lakes in Ontario
Eutrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Bethel 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: 2025-05-21
Monitoring stations: