Leeds and Grenville Counties County Lake Quality
Ontario, 34 lakes, measured by Ontario MECP
There are 34 monitored lakes in Leeds and Grenville Counties County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. The 34 monitored lakes in Leeds and Grenville Counties 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 Leeds and Grenville Counties County
Planning a trip? Check special fishing regulations for Crosby Lake — or check the official Ontario fishing regulations.
All Lakes in Leeds and Grenville Counties County
34 lakes · 0 ranked on readings, 34 without enough sampling0 lakes ranked on readings · 34 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Crosby LakeLeeds and Grenville Counties | 17.1 ft | 9.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Bass LakeLeeds and Grenville Counties | 19.4 ft | 13.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Bass LakeLeeds and Grenville Counties | 19 ft | 6.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Benson LakeLeeds and Grenville Counties | 10.2 ft | 14.1 µg/L | No recent samples | No recent samples | Not recorded | |
| Big Rideau LakeLeeds and Grenville Counties | 18.9 ft | 9.7 µg/L | No recent samples | No recent samples | Not recorded | |
| Charleston LakeLeeds and Grenville Counties | 19.7 ft | 9.6 µg/L | No recent samples | No recent samples | Not recorded | |
| Clear LakeLeeds and Grenville Counties | 14.6 ft | 13.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Gananoque LakeLeeds and Grenville Counties | 10.5 ft | 19.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Gananoque River LakeLeeds and Grenville Counties | 10.5 ft | 17.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Graham LakeLeeds and Grenville Counties | 8.2 ft | 13 µg/L | No recent samples | No recent samples | Not recorded | |
| Grippen LakeLeeds and Grenville Counties | 13.1 ft | 11.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Higley LakeLeeds and Grenville Counties | 15.4 ft | 11.2 µg/L | No recent samples | No recent samples | Not recorded | |
| Indian LakeLeeds and Grenville Counties | 15.7 ft | 12.6 µg/L | No recent samples | No recent samples | Not recorded | |
| Killenbeck LakeLeeds and Grenville Counties | 7.9 ft | 21.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Little Cranberry LakeLeeds and Grenville Counties | 8.2 ft | 44.7 µg/L | No recent samples | No recent samples | Not recorded | |
| Little Crosby LakeLeeds and Grenville Counties | 9.5 ft | 9.4 µg/L | No recent samples | No recent samples | Not recorded | |
| Long LakeLeeds and Grenville Counties | 10.2 ft | 13.7 µg/L | No recent samples | No recent samples | Not recorded | |
| Loon LakeLeeds and Grenville Counties | 13.1 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lower Beverley LakeLeeds and Grenville Counties | 9.8 ft | 18.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Lyndhurst LakeLeeds and Grenville Counties | 9.8 ft | 24.7 µg/L | No recent samples | No recent samples | Not recorded | |
| Newboro LakeLeeds and Grenville Counties | 14.8 ft | 17 µg/L | No recent samples | No recent samples | Not recorded | |
| Otter LakeLeeds and Grenville Counties | 14.9 ft | 9.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Red Horse LakeLeeds and Grenville Counties | 13.1 ft | 17.6 µg/L | No recent samples | No recent samples | Not recorded | |
| Sand LakeLeeds and Grenville Counties | 16.4 ft | 13.6 µg/L | No recent samples | No recent samples | Not recorded | |
| Singleton LakeLeeds and Grenville Counties | 8.9 ft | 18.5 µg/L | No recent samples | No recent samples | Not recorded | |
| South LakeLeeds and Grenville Counties | 4.9 ft | 26.1 µg/L | No recent samples | No recent samples | Not recorded | |
| St Lawrence River LakeLeeds and Grenville Counties | 31.2 ft | 10.1 µg/L | No recent samples | No recent samples | Not recorded | |
| Temperance LakeLeeds and Grenville Counties | 5.9 ft | 17.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Tommy LakeLeeds and Grenville Counties | 11.6 ft | 19.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Troy LakeLeeds and Grenville Counties | 5.6 ft | 24 µg/L | No recent samples | No recent samples | Not recorded | |
| Upper Beverley LakeLeeds and Grenville Counties | 8.5 ft | 18.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Upper Rideau LakeLeeds and Grenville Counties | 12.5 ft | 20 µg/L | No recent samples | No recent samples | Not recorded | |
| Whitefish LakeLeeds and Grenville Counties | 12.1 ft | 14.7 µg/L | No recent samples | No recent samples | Not recorded | |
| Mill PondLeeds and Grenville Counties | No recent samples | 17.3 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.