Kenora District County, Ontario · Water Quality Report Card
Lena Lake
Lena Lake in Kenora District, Ontario received a water quality grade of C (Fair). Water clarity: 1.5 m visibility. Phosphorus: 20.5 µg/L.
- Clarity
- 1.5 m
- Type
- Eutrophic
Lena Lake is a productive, nutrient-rich eutrophic lake in Kenora District County, Ontario. Water quality is graded C based on 2 sampling years through 2025. Compared to the 341 other monitored lakes in Kenora District County, Lena Lake ranks #286 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2025-05-24. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 4.9 ft. Phosphorus level: 20.5 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.5 m | D |
| Phosphorus | 20.5 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Lena Lake
Location
County Ranking
Ranked #286 of 342 lakes in Kenora District
Cleaner Lakes Within 30 Miles
Lena Lake holds Grade C. 3 nearby lakes hold higher grades.
- BAustin LakeKenora District · 1.8 mi · Higher grade (C → B)
- BBlack Sturgeon LakeKenora District · 4.7 mi · Higher grade (C → B)
- BSchnarr LakeKenora District · 0.8 mi · Higher grade (C → B)
Nearby Lakes in Kenora District
Explore Lena 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 Lena 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: 2025-05-24
Monitoring stations: