Nipissing District County, Ontario · Water Quality Report Card
Pat Lake
Pat Lake in Nipissing District, Ontario received a water quality grade of C (Fair). Water clarity: 2.7 m visibility.
- Clarity
- 2.7 m
- Type
- Mesotrophic
Pat Lake is a mesotrophic lake in Nipissing District County, Ontario. Water quality is graded C based on 1 sampling years through 2001. Compared to the 280 other monitored lakes in Nipissing District County, Pat Lake ranks #272 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2001-06-21. 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 8.9 ft. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.7 m | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Pat Lake
Location
County Ranking
Ranked #272 of 281 lakes in Nipissing District
Cleaner Lakes Within 30 Miles
Pat Lake holds Grade C. 3 nearby lakes hold higher grades.
Nearby Lakes in Nipissing District
Explore Pat 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 Pat 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: 2001-06-21
Monitoring stations: