Rainy River District County, Ontario · Water Quality Report Card
Rainy River Lake
Rainy River Lake in Rainy River District, Ontario received a water quality grade of C (Fair). Phosphorus: 49.7 µg/L.
- Type
- Eutrophic
Rainy River Lake is a productive, nutrient-rich eutrophic lake in Rainy River District County, Ontario. Water quality is graded C based on 1 sampling years through 2005. Compared to the 79 other monitored lakes in Rainy River District County, Rainy River Lake ranks #77 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2005-05-30. Grade methodology: LakeGrade methodology.
Watch Rainy River Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
No clarity data. Phosphorus level: 49.7 µg/L. Trophic State Index: 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 49.7 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Rainy River Lake
Compare lakeside cabins, hotels, and vacation rentals near Rainy River Lake in Rainy River 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 Rainy River 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 Rainy River Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Rainy River Lake — straight to your inbox. No spam, unsubscribe anytime.
Fishing Rainy River Lake
Location
County Ranking
Ranked #77 of 80 lakes in Rainy River District
Cleaner Lakes Within 30 Miles
Rainy River Lake holds Grade C. 5 nearby lakes hold higher grades.
- ABurditt LakeRainy River District · 25 mi · Two grade letters higher (C → A)
- BLittle Kishkutena LakeRainy River District · 24.7 mi · Higher grade (C → B)
- BOff LakeRainy River District · 18.3 mi · Higher grade (C → B)
- BDespair LakeRainy River District · 21.5 mi · Higher grade (C → B)
- BWest Jackfish LakeRainy River District · 24.4 mi · Higher grade (C → B)
Nearby Lakes in Rainy River District
Explore Rainy River Lake across LakeGrade
More Ontario Lake Rankings
Other Grade C Lakes in Ontario
Eutrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Rainy River 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: 2005-05-30
Monitoring stations: