Holtz Lake
Nipissing District, OntarioView mapDirections
Ontario MECP publishes the water-quality measurements for Holtz Lake. Here is what has been measured.
- Limited data
Holtz Lake in Nipissing District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 3.7 m visibility.
Holtz Lake is a lake in Nipissing District County, Ontario.
Source: Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring) — not the EPA Water Quality Portal, last sampled 2001-07-09. Methodology: how these readings are compared.
What Holtz Lake is good for
From access and monitoring records, not editorial picks.
- Clear water12.1 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Holtz Lake is safe to swim in today is a call for the Ontario Ministry of the Environment, Conservation and Parks and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Holtz Lake
These are the measurements Ontario MECP publishes for Holtz Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 12.1 ft. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.7m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Fishing Holtz Lake
Nearby Lakes in Nipissing District
Frequently asked questions about Holtz Lake
Where is Holtz Lake?
- Holtz Lake is a lake in Nipissing District, Ontario. Its water-quality measurements are published by Ontario MECP and shown on this page as reported.
What is the water quality of Holtz Lake?
- Holtz Lake in Nipissing District, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 3.7 m visibility.
Is Holtz Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Holtz Lake across LakeQuality
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Where this data comes from
Measurements for Holtz Lake come from Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring), not the EPA Water Quality Portal. Per-sample source details are not recorded for this lake. Contains information licensed under the Open Government Licence – Ontario. See data sources.