Kenora District County, Ontario · Water Quality Report Card
Upper Slate Lake
Upper Slate Lake in Kenora District, Ontario received a water quality grade of C (Fair). Water clarity: 1 m visibility. Phosphorus: 13.5 µg/L.
- Clarity
- 1 m
- Type
- Eutrophic
Upper Slate Lake is a productive, nutrient-rich eutrophic lake in Kenora District County, Ontario. Water quality is graded C based on 2 sampling years through 2017. Compared to the 341 other monitored lakes in Kenora District County, Upper Slate Lake ranks #308 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2017-05-23. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3.3 ft of visibility. Phosphorus level: 13.5 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1 m | F |
| Phosphorus | 13.5 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Upper Slate Lake
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Fishing Upper Slate Lake
Location
County Ranking
Ranked #308 of 342 lakes in Kenora District
Cleaner Lakes Within 30 Miles
Upper Slate Lake holds Grade C. 3 nearby lakes hold higher grades.
- AWoman LakeKenora District · 17.5 mi · Two grade letters higher (C → A)
- BJubilee LakeKenora District · 6.2 mi · Higher grade (C → B)
- BJeanette LakeKenora District · 18.7 mi · Higher grade (C → B)
Nearby Lakes in Kenora District
Explore Upper Slate 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 Upper Slate 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: 2017-05-23
Monitoring stations: