Kenora District County, Ontario · Water Quality Report Card
Clay Lake
Clay 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
Clay Lake is a productive, nutrient-rich eutrophic lake in Kenora District County, Ontario. Water quality is graded F based on 1 sampling years through 2019. Compared to the 341 other monitored lakes in Kenora District County, Clay Lake ranks #339 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2019-05-21. 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 Clay Lake
Location
County Ranking
Ranked #339 of 342 lakes in Kenora District
Cleaner Lakes Within 30 Miles
Clay Lake holds Grade F. 4 nearby lakes hold higher grades.
Nearby Lakes in Kenora District
Explore Clay Lake across LakeGrade
More Ontario Lake Rankings
Other Grade F Lakes in Ontario
Eutrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Clay 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: 2019-05-21
Monitoring stations: