Kenora District County, Ontario · Water Quality Report Card
Slim Lake
Slim Lake in Kenora District, Ontario received a water quality grade of F (Very Poor). Water clarity: 0.8 m visibility.
- Clarity
- 0.8 m
- Type
- Eutrophic
Slim Lake is a productive, nutrient-rich eutrophic lake in Kenora District County, Ontario. Water quality is graded F based on 1 sampling years through 1999. Compared to the 341 other monitored lakes in Kenora District County, Slim Lake ranks #340 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 1999-09-06. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2.6 ft of visibility. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.8 m | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Slim Lake
Location
County Ranking
Ranked #340 of 342 lakes in Kenora District
Cleaner Lakes Within 30 Miles
Slim Lake holds Grade F. 5 nearby lakes hold higher grades.
- BAustin LakeKenora District · 2 mi · Two grade letters higher (F → B)
- BBlack Sturgeon LakeKenora District · 3.1 mi · Two grade letters higher (F → B)
- BBlack Sturgeon LakesKenora District · 4.8 mi · Two grade letters higher (F → B)
- BSchnarr LakeKenora District · 1.8 mi · Two grade letters higher (F → B)
- CLena LakeKenora District · 1.6 mi · Two grade letters higher (F → C)
Nearby Lakes in Kenora District
Explore Slim Lake across LakeGrade
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Other Grade F Lakes in Ontario
Eutrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Slim 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: 1999-09-06
Monitoring stations: