Parry Sound District County, Ontario · Water Quality Report Card
Healey Lake
Healey Lake in Parry Sound District, Ontario received a water quality grade of B (Good). Water clarity: 3 m visibility. Phosphorus: 7.9 µg/L.
- Clarity
- 3 m
- Type
- Oligotrophic
Healey Lake is a cold, clear oligotrophic lake in Parry Sound District County, Ontario. Water quality is graded B based on 2 sampling years through 2025. Compared to the 230 other monitored lakes in Parry Sound District County, Healey Lake ranks #157 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2025-10-25. 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 9.8 ft. Phosphorus level: 7.9 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 m | C |
| Phosphorus | 7.9 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
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Fishing Healey Lake
Location
County Ranking
Ranked #157 of 231 lakes in Parry Sound District
Cleaner Lakes Within 30 Miles
Healey Lake holds Grade B. 5 nearby lakes hold higher grades.
- ACrane LakeParry Sound District · 3 mi · Higher grade (B → A)
- ABlackstone LakeParry Sound District · 4.2 mi · Higher grade (B → A)
- ABurnt LakeParry Sound District · 5.2 mi · Higher grade (B → A)
- AForget LakeParry Sound District · 5.9 mi · Higher grade (B → A)
- AMckechnie LakeParry Sound District · 6.1 mi · Higher grade (B → A)
Nearby Lakes in Parry Sound District
Explore Healey Lake across LakeGrade
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Other Grade B Lakes in Ontario
Oligotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Healey 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: 2025-10-25
Monitoring stations: