Nipissing District County, Ontario · Water Quality Report Card
William Lake
William Lake in Nipissing District, Ontario received a water quality grade of B (Good). Phosphorus: 21.3 µg/L.
- Type
- Mesotrophic
William Lake is a mesotrophic lake in Nipissing District County, Ontario. Water quality is graded B based on 1 sampling years through 2002. Compared to the 280 other monitored lakes in Nipissing District County, William Lake ranks #188 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2002-08-27. 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: 21.3 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 21.3 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing William Lake
Location
County Ranking
Ranked #188 of 281 lakes in Nipissing District
Cleaner Lakes Within 30 Miles
William Lake holds Grade B. 2 nearby lakes hold higher grades.
Nearby Lakes in Nipissing District
Explore William 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 William 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: 2002-08-27
Monitoring stations: