Thunder Bay District County, Ontario · Water Quality Report Card
Elbow Lake
Elbow Lake in Thunder Bay District, Ontario received a water quality grade of B (Good). Water clarity: 2.9 m visibility. Phosphorus: 8.3 µg/L.
- Clarity
- 2.9 m
- Type
- Oligotrophic
Elbow Lake is a cold, clear oligotrophic lake in Thunder Bay District County, Ontario. Water quality is graded B based on 2 sampling years through 2024. Compared to the 301 other monitored lakes in Thunder Bay District County, Elbow Lake ranks #124 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2024-08-01. 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 9.5 ft. Phosphorus level: 8.3 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.9 m | C |
| Phosphorus | 8.3 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
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Fishing Elbow Lake
Location
County Ranking
Ranked #124 of 302 lakes in Thunder Bay District
Cleaner Lakes Within 30 Miles
Elbow Lake holds Grade B. 4 nearby lakes hold higher grades.
- ABisect LakeThunder Bay District · 1 mi · Higher grade (B → A)
- AWideman L. LakeThunder Bay District · 1.4 mi · Higher grade (B → A)
- ABass LakeThunder Bay District · 2.4 mi · Higher grade (B → A)
- AHilma LakeThunder Bay District · 3 mi · Higher grade (B → A)
Nearby Lakes in Thunder Bay District
Explore Elbow Lake across LakeGrade
More Ontario Lake Rankings
Other Grade B Lakes in Ontario
Oligotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Elbow 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: 2024-08-01
Monitoring stations: