Nipissing District County, Ontario · Water Quality Report Card
Holtz Lake
Holtz Lake in Nipissing District, Ontario received a water quality grade of B (Good). Water clarity: 3.7 m visibility.
- Clarity
- 3.7 m
- Type
- Mesotrophic
Holtz Lake is a mesotrophic lake in Nipissing District County, Ontario. Water quality is graded B based on 1 sampling years through 2001. Compared to the 280 other monitored lakes in Nipissing District County, Holtz Lake ranks #162 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2001-07-09. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 12.1 ft. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.7 m | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Holtz Lake
Location
County Ranking
Ranked #162 of 281 lakes in Nipissing District
Cleaner Lakes Within 30 Miles
Holtz Lake holds Grade B. One nearby lake has a higher grade.
Nearby Lakes in Nipissing District
Explore Holtz 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 Holtz 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: 2001-07-09
Monitoring stations: