Simcoe County Lake Quality
Ontario, 17 lakes, measured by Ontario MECP
There are 17 monitored lakes in Simcoe County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. The 17 monitored lakes in Simcoe 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 Simcoe County
Planning a trip? Check special fishing regulations for Bass Lake — or check the official Ontario fishing regulations.
All Lakes in Simcoe County
17 lakes · 0 ranked on readings, 17 without enough sampling0 lakes ranked on readings · 17 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Bass LakeSimcoe | 9.8 ft | 10.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Couchiching LakeSimcoe | 13.1 ft | 10.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Farlain LakeSimcoe | 9.2 ft | 9.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Gloucester PoolSimcoe | 15.4 ft | 9.6 µg/L | No recent samples | No recent samples | Not recorded | |
| Little LakeSimcoe | 11.5 ft | 9.7 µg/L | No recent samples | No recent samples | Not recorded | |
| Little LakeSimcoe | 10.5 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| Maclean LakeSimcoe | 4.1 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| Orr LakeSimcoe | 8.2 ft | 12.6 µg/L | No recent samples | No recent samples | Not recorded | |
| Simcoe LakeSimcoe | 14.8 ft | 10.6 µg/L | No recent samples | No recent samples | Not recorded | |
| Sparrow LakeSimcoe | 14.8 ft | 10.9 µg/L | No recent samples | No recent samples | Not recorded | |
| St John LakeSimcoe | 8.2 ft | 29.4 µg/L | No recent samples | No recent samples | Not recorded | |
| Tea LakeSimcoe | 4.8 ft | 15.2 µg/L | No recent samples | No recent samples | Not recorded | |
| St George LakeSimcoe | No recent samples | 17.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Lake SimcoeSimcoe | 31.5 ft | 7.1 µg/L | No recent samples | No recent samples | Not recorded | |
| Little LakeSimcoe | 5.9 ft | 20.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Little LakeSimcoe | 8.5 ft | 9.4 µg/L | No recent samples | No recent samples | Not recorded | |
| Long LakeSimcoe | 9.4 ft | 8.8 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.