Lac Dollard-des-Ormeaux Lake
Prescott and Russell Counties, OntarioView mapDirections
Ontario MECP publishes the water-quality measurements for Lac Dollard-des-Ormeaux Lake. Here is what has been measured.
Lac Dollard-des-Ormeaux Lake in Prescott and Russell Counties, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 1.8 m visibility. Phosphorus: 21.2 µg/L.
Lac Dollard-des-Ormeaux Lake is a lake in Prescott and Russell Counties County, Ontario.
Source: Ontario open-data programmes (Lake Partner Program and Broad-scale Monitoring) — not the EPA Water Quality Portal, last sampled 2023-07-20. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lac Dollard-des-Ormeaux 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 Lac Dollard-des-Ormeaux Lake
These are the measurements Ontario MECP publishes for Lac Dollard-des-Ormeaux Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5.9 ft. Phosphorus 21.2 µg/L. TSI 50.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.8m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 21.2µg/L | Measured, not scored 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. | 50 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Frequently asked questions about Lac Dollard-des-Ormeaux Lake
Where is Lac Dollard-des-Ormeaux Lake?
- Lac Dollard-des-Ormeaux Lake is a lake in Prescott and Russell Counties, Ontario. Its water-quality measurements are published by Ontario MECP and shown on this page as reported.
What is the water quality of Lac Dollard-des-Ormeaux Lake?
- Lac Dollard-des-Ormeaux Lake in Prescott and Russell Counties, Ontario has water-quality measurements published by Ontario MECP, shown here as reported. Water clarity: 1.8 m visibility. Phosphorus: 21.2 µg/L.
Is Lac Dollard-des-Ormeaux Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Lac Dollard-des-Ormeaux 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.