Algoma District County, Ontario · Water Quality Report Card
Rochester Lake
Rochester Lake in Algoma District, Ontario received a water quality grade of B (Good). Phosphorus: 22.5 µg/L.
- Type
- Mesotrophic
Rochester Lake is a mesotrophic lake in Algoma District County, Ontario. Water quality is graded B based on 1 sampling years through 2004. Compared to the 217 other monitored lakes in Algoma District County, Rochester Lake ranks #160 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2004-05-04. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
No clarity data. Phosphorus level: 22.5 µg/L. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 22.5 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Rochester Lake
Location
County Ranking
Ranked #160 of 218 lakes in Algoma District
Cleaner Lakes Within 30 Miles
Rochester Lake holds Grade B. 5 nearby lakes hold higher grades.
- ATeasdale LakeAlgoma District · 3.4 mi · Higher grade (B → A)
- AQuirke LakeAlgoma District · 3.9 mi · Higher grade (B → A)
- AGeiger LakeAlgoma District · 1.5 mi · Higher grade (B → A)
- AAlexander LakeAlgoma District · 4.4 mi · Higher grade (B → A)
- APopeye LakeAlgoma District · 5.8 mi · Higher grade (B → A)
Nearby Lakes in Algoma District
Explore Rochester Lake across LakeGrade
More Ontario Lake Rankings
Other Grade B Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Rochester 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: 2004-05-04
Monitoring stations: