Peel Region County, Ontario · Water Quality Report Card
Claireville Reservoir
Claireville Reservoir in Peel Region, Ontario received a water quality grade of F (Very Poor). Water clarity: 0.5 m visibility.
- Clarity
- 0.5 m
- Type
- Hypereutrophic
Claireville Reservoir is a highly nutrient-loaded hypereutrophic lake in Peel Region County, Ontario. Water quality is graded F based on 1 sampling years through 2001. Compared to the 3 other monitored lakes in Peel Region County, Claireville Reservoir ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2001-09-05. 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 1.5 ft of visibility. Trophic State Index: 72.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.45 m | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 72 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Claireville Reservoir
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Fishing Claireville Reservoir
Location
County Ranking
Ranked #4 of 4 lakes in Peel Region
Cleaner Lakes Within 30 Miles
Claireville Reservoir holds Grade F. 4 nearby lakes hold higher grades.
Nearby Lakes in Peel Region
Explore Claireville Reservoir across LakeGrade
More Ontario Lake Rankings
Other Grade F Lakes in Ontario
Hypereutrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Claireville Reservoir 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: 2001-09-05
Monitoring stations: