Lennox and Addington County Lake Quality
Ontario, 18 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 18 monitored lakes in Lennox and Addington 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 Lennox and Addington County
Planning a trip? Check special fishing regulations for Ashby Lake — or check the official Ontario fishing regulations.
All Lakes in Lennox and Addington County
18 lakes · 0 ranked on readings, 18 without enough sampling0 lakes ranked on readings · 18 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Ashby LakeLennox and Addington | 18 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| Beaver LakeLennox and Addington | 12.8 ft | 14.9 µg/L | No recent samples | No recent samples | Not recorded | |
| Pringle LakeLennox and Addington | 7.9 ft | 10.1 µg/L | No recent samples | No recent samples | Not recorded | |
| Sheffield Long LakeLennox and Addington | 8.5 ft | 11.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Sheldrake LakeLennox and Addington | No recent samples | 16.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Skootamatta LakeLennox and Addington | 13.5 ft | 9.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Weslemkoon LakeLennox and Addington | 14.1 ft | 6.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Cade LakeLennox and Addington | No recent samples | 18.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Browns LakeLennox and Addington | No recent samples | 9.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Effingham LakeLennox and Addington | 6.2 ft | 9.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Long Mallory LakeLennox and Addington | No recent samples | 6.7 µg/L | No recent samples | No recent samples | Not recorded | |
| Mocassin LakeLennox and Addington | No recent samples | 8.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Otter LakeLennox and Addington | 10.8 ft | 6.8 µg/L | No recent samples | No recent samples | Not recorded | |
| Trout LakeLennox and Addington | No recent samples | 9.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Crystal LakeLennox and Addington | 18 ft | 6.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Gull LakeLennox and Addington | 9.8 ft | 9.3 µg/L | No recent samples | No recent samples | Not recorded | |
| Joeperry LakeLennox and Addington | 10.8 ft | 6.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Leatherroot LakeLennox and Addington | 23 ft | 5.2 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.