Bruce County, Ontario · Water Quality Report Card
Arran Lake
Arran Lake in Bruce, Ontario received a water quality grade of C (Fair). Water clarity: 2.4 m visibility.
- Clarity
- 2.4 m
- Type
- Mesotrophic
Arran Lake is a mesotrophic lake in Bruce County, Ontario. Water quality is graded C based on 1 sampling years through 1995. Compared to the 18 other monitored lakes in Bruce County, Arran Lake ranks #13 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 1995-09-25. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 7.7 ft. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.35 m | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Arran Lake
Location
County Ranking
Ranked #13 of 19 lakes in Bruce
Cleaner Lakes Within 30 Miles
Arran Lake holds Grade C. 5 nearby lakes hold higher grades.
- AChesley LakeBruce · 5.1 mi · Two grade letters higher (C → A)
- AGould LakeBruce · 8.2 mi · Two grade letters higher (C → A)
- AMccullough LakeGrey · 18.8 mi · Two grade letters higher (C → A)
- ABass LakeGrey · 19.8 mi · Two grade letters higher (C → A)
- ANorth Louise LakeGrey · 20.7 mi · Two grade letters higher (C → A)
Nearby Lakes in Bruce
Explore Arran Lake across LakeGrade
More Ontario Lake Rankings
Other Grade C Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Arran 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: 1995-09-25
Monitoring stations: