Cochrane District County, Ontario · Water Quality Report Card
Opasatika Lake
Opasatika Lake in Cochrane District, Ontario received a water quality grade of B (Good). Water clarity: 1.5 m visibility. Phosphorus: 17.5 µg/L.
- Clarity
- 1.5 m
- Type
- Mesotrophic
Opasatika Lake is a mesotrophic lake in Cochrane District County, Ontario. Water quality is graded B based on 2 sampling years through 2019. Compared to the 134 other monitored lakes in Cochrane District County, Opasatika Lake ranks #93 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2019-06-04. Grade methodology: LakeGrade methodology.
Watch Opasatika Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
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: 17.5 µg/L. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.5 m | D |
| Phosphorus | 17.5 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Opasatika Lake
Compare lakeside cabins, hotels, and vacation rentals near Opasatika Lake in Cochrane 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 Opasatika 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 Opasatika Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Opasatika Lake — straight to your inbox. No spam, unsubscribe anytime.
Fishing Opasatika Lake
Location
County Ranking
Ranked #93 of 135 lakes in Cochrane District
Cleaner Lakes Within 30 Miles
Opasatika Lake holds Grade B. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Cochrane District
Explore Opasatika Lake across LakeGrade
More Ontario Lake Rankings
Other Grade B Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Opasatika 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: 2019-06-04
Monitoring stations: