Central Ontario County Lake Quality
Ontario, 20 lakes, measured by Ontario MECP
The county-level average smooths over real differences — a single agricultural watershed near the southwest corner can pull the average down even if the rest of the county runs clean. The 20 monitored lakes in Central Ontario 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 Central Ontario County
Planning a trip? Check special fishing regulations for Balsam Lake — or check the official Ontario fishing regulations.
All Lakes in Central Ontario County
20 lakes · 0 ranked on readings, 20 without enough sampling0 lakes ranked on readings · 20 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Balsam LakeCentral Ontario | 14.1 ft | 11.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Cameron LakeCentral Ontario | 11.8 ft | 10.1 µg/L | No recent samples | No recent samples | Not recorded | |
| Canal LakeCentral Ontario | 6.6 ft | 18.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Cranberry LakeCentral Ontario | 6.2 ft | 17 µg/L | No recent samples | No recent samples | Not recorded | |
| Crego LakeCentral Ontario | 11.8 ft | 8.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Dalrymple LakeCentral Ontario | 6.4 ft | 15.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Four Mile LakeCentral Ontario | 21.3 ft | 5.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Head LakeCentral Ontario | 9.8 ft | 11.4 µg/L | No recent samples | No recent samples | Not recorded | |
| Little LakeCentral Ontario | 16.2 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| Logan LakeCentral Ontario | 10.5 ft | 8.7 µg/L | No recent samples | No recent samples | Not recorded | |
| Mitchell LakeCentral Ontario | 7.1 ft | 21.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Oak LakeCentral Ontario | 17.1 ft | 13.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Pigeon River LakeCentral Ontario | 6.9 ft | 22.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Rush LakeCentral Ontario | 11.2 ft | 8.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Scugog LakeCentral Ontario | 3.1 ft | 20.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Shadow LakeCentral Ontario | 13.8 ft | 6.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Sturgeon LakeCentral Ontario | 9.5 ft | 16.1 µg/L | No recent samples | No recent samples | Not recorded | |
| Emily LakeCentral Ontario | 9.5 ft | 30.4 µg/L | No recent samples | No recent samples | Not recorded | |
| Silver LakeCentral Ontario | 12.3 ft | 7.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Young LakeCentral Ontario | 20.3 ft | 9.9 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.