Hastings County, Ontario · Water Quality Report Card
Upper Perieau Lake
Upper Perieau Lake in Hastings, Ontario received a water quality grade of B (Good). Water clarity: 2.4 m visibility. Phosphorus: 20.7 µg/L.
- Clarity
- 2.4 m
- Type
- Mesotrophic
Upper Perieau Lake is a mesotrophic lake in Hastings County, Ontario. Water quality is graded B based on 2 sampling years through 2002. Compared to the 66 other monitored lakes in Hastings County, Upper Perieau Lake ranks #66 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2002-06-13. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 7.9 ft. Phosphorus level: 20.7 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.4 m | C |
| Phosphorus | 20.7 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Upper Perieau Lake
Location
County Ranking
Ranked #66 of 67 lakes in Hastings
Cleaner Lakes Within 30 Miles
Upper Perieau Lake holds Grade B. 5 nearby lakes hold higher grades.
- ALittle Meach LakeHastings · 1.5 mi · Higher grade (B → A)
- AMeach LakeHastings · 2.2 mi · Higher grade (B → A)
- BLower Perieau LakeHastings · 0.6 mi · Higher overall water quality score
- BBig Mink LakeHastings · 2.4 mi · Higher overall water quality score
- BBoulter LakeHastings · 4.7 mi · Higher overall water quality score
Nearby Lakes in Hastings
Explore Upper Perieau Lake across LakeGrade
More Ontario Lake Rankings
Other Grade B Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Upper Perieau 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: 2002-06-13
Monitoring stations: