Parry Sound District County, Ontario · Water Quality Report Card
Big Deer Lake
Big Deer Lake in Parry Sound District, Ontario received a water quality grade of B (Good). Water clarity: 2 m visibility. Phosphorus: 8.8 µg/L.
- Clarity
- 2 m
- Type
- Mesotrophic
Big Deer Lake is a mesotrophic lake in Parry Sound District County, Ontario. Water quality is graded B based on 2 sampling years through 2011. Compared to the 230 other monitored lakes in Parry Sound District County, Big Deer Lake ranks #214 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2011-05-17. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 6.6 ft. Phosphorus level: 8.8 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 m | D |
| Phosphorus | 8.8 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Big Deer Lake
Location
County Ranking
Ranked #214 of 231 lakes in Parry Sound District
Cleaner Lakes Within 30 Miles
Big Deer Lake holds Grade B. 5 nearby lakes hold higher grades.
- ASpring LakeParry Sound District · 4.2 mi · Higher grade (B → A)
- ADeer LakeParry Sound District · 7.7 mi · Higher grade (B → A)
- ANeighick LakeParry Sound District · 10.3 mi · Higher grade (B → A)
- BAhmic LakeParry Sound District · 9.4 mi · Higher overall water quality score
- BLe Grou LakeParry Sound District · 10.2 mi · Higher overall water quality score
Nearby Lakes in Parry Sound District
Explore Big Deer Lake across LakeGrade
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Other Grade B Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Big Deer 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: 2011-05-17
Monitoring stations: