
Grey County Lake Quality
Ontario, 12 lakes, measured by Ontario MECP
Grey County has 12 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. The 12 monitored lakes in Grey 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 Grey County
Planning a trip? Check special fishing regulations for Bass Lake — or check the official Ontario fishing regulations.
All Lakes in Grey County
12 lakes · 0 ranked on readings, 12 without enough sampling0 lakes ranked on readings · 12 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Bass LakeGrey | 12.5 ft | 5.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Boyd LakeGrey | 8.2 ft | 13.4 µg/L | No recent samples | No recent samples | Not recorded | |
| Brewster'S LakeGrey | 13.8 ft | 9.2 µg/L | No recent samples | No recent samples | Not recorded | |
| Eugenia LakeGrey | 9.8 ft | 8.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Francis LakeGrey | 8.2 ft | 9 µg/L | No recent samples | No recent samples | Not recorded | |
| Habermehl LakeGrey | 9.5 ft | 11.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Mccullough LakeGrey | 13.1 ft | 7.4 µg/L | No recent samples | No recent samples | Not recorded | |
| North Louise LakeGrey | 11.5 ft | 9.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Wilcox LakeGrey | 10.7 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| Wilder LakeGrey | 13 ft | 8.1 µg/L | No recent samples | No recent samples | Not recorded | |
| Williams LakeGrey | 5.6 ft | 4.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Mountain LakeGrey | 10.8 ft | 11.7 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.