Pontiac County Lake Quality
Ontario, 4 lakes, measured by Ontario MECP
Pontiac County holds 4 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. The 4 monitored lakes in Pontiac County carry whatever clarity, phosphorus, and chlorophyll-a readings Ontario MECP has published, shown as reported.
Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.
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Quick Answers for Pontiac County
Planning a trip? Check special fishing regulations for Lac Coulonge Lake — or check the official Ontario fishing regulations.
All Lakes in Pontiac County
4 lakes · 0 ranked on readings, 4 without enough sampling0 lakes ranked on readings · 4 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Lac Coulonge LakePontiac | 5.2 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lac des Chats LakePontiac | 6.2 ft | 16.4 µg/L | No recent samples | No recent samples | Not recorded | |
| Lac du Rocher-Fendu LakePontiac | 5.2 ft | 13 µg/L | No recent samples | No recent samples | Not recorded | |
| Lower Allumette LakePontiac | 4.8 ft | 16.2 µg/L | No recent samples | No recent samples | Not recorded |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the Ontario Ministry of the Environment, Conservation and Parks. See data sources.