Cochrane District County, Ontario · Water Quality Report Card
Allan Lake
Allan Lake in Cochrane District, Ontario received a water quality grade of C (Fair). Water clarity: 0.8 m visibility. Phosphorus: 24.5 µg/L.
- Clarity
- 0.8 m
- Type
- Eutrophic
Allan Lake is a productive, nutrient-rich eutrophic lake in Cochrane District County, Ontario. Water quality is graded C based on 2 sampling years through 2016. Compared to the 134 other monitored lakes in Cochrane District County, Allan Lake ranks #126 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2016-05-31. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 2.6 ft of visibility. Phosphorus level: 24.5 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.8 m | F |
| Phosphorus | 24.5 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Allan Lake
Location
County Ranking
Ranked #126 of 135 lakes in Cochrane District
Cleaner Lakes Within 30 Miles
Allan Lake holds Grade C. 5 nearby lakes hold higher grades.
- BMine LakeCochrane District · 12.3 mi · Higher grade (C → B)
- BLac des Isles LakeCochrane District · 15.8 mi · Higher grade (C → B)
- BOpasatika LakeCochrane District · 16.7 mi · Higher grade (C → B)
- BHillmer LakeCochrane District · 17.3 mi · Higher grade (C → B)
- BPearce LakeCochrane District · 18.5 mi · Higher grade (C → B)
Nearby Lakes in Cochrane District
Explore Allan Lake across LakeGrade
More Ontario Lake Rankings
Other Grade C Lakes in Ontario
Eutrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Allan 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: 2016-05-31
Monitoring stations: