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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Cleanest Lakes in Frontenac County, Ontario

Ardoch Lake in Frontenac County leads the rankings on measured clarity and nutrients and 19 ft of clarity. Below are the top 50 cleanest monitored lakes in Frontenac County, Ontario, ranked by EPA water quality score.

Ranked List

#LakeCountyClarityPhosphorusAlgae
1Ardoch LakeFrontenac—19 ft6.8 µg/L-
2Big Clear LakeFrontenac—15.1 ft9 µg/L-
3Big Clear LakeFrontenac—21.3 ft8.1 µg/L-
4Big Gull LakeFrontenac—13.1 ft8.1 µg/L-
5Big Olhman LakeFrontenac—16.4 ft13.8 µg/L-
6Birch LakeFrontenac—14.1 ft8.8 µg/L-
7Blue LakeFrontenac—37.7 ft8.1 µg/L-
8Bobs LakeFrontenac—15.7 ft9.3 µg/L-
9Brule LakeFrontenac—23.3 ft5.4 µg/L-
10Buck LakeFrontenac—13.1 ft9.7 µg/L-
11Buckshot LakeFrontenac—13.5 ft5.1 µg/L-
12Buffy LakeFrontenac—9.2 ft21 µg/L-
13Burridge LakeFrontenac—17.2 ft9 µg/L-
14Butterill LakeFrontenac—14.4 ft14.1 µg/L-
15Canoe LakeFrontenac—14.1 ft7.9 µg/L-
16Canonto LakeFrontenac—20 ft6.2 µg/L-
17Carnahan LakeFrontenac—10.5 ft19 µg/L-
18Cole LakeFrontenac—5.9 ft18.5 µg/L-
19Collins LakeFrontenac—8.5 ft18 µg/L-
20Cox'S LakeFrontenac—7.5 ft9.6 µg/L-
21Cranberry LakeFrontenac—8.9 ft18.5 µg/L-
22Crotch LakeFrontenac—8.5 ft10.5 µg/L-
23Crotch LakeFrontenac—13.1 ft7.7 µg/L-
24Crow LakeFrontenac—17.4 ft7 µg/L-
25Desert LakeFrontenac—19 ft9.1 µg/L-
26Devil LakeFrontenac—21.3 ft7.4 µg/L-
27Dog LakeFrontenac—6.2 ft28.1 µg/L-
28Eagle LakeFrontenac—17.9 ft8.5 µg/L-
29Elbow LakeFrontenac—9.8 ft14.8 µg/L-
30Fermoy LakeFrontenac—11.3 ft13.5 µg/L-
31Fishing LakeFrontenac—13.1 ft10.1 µg/L-
32Fourteen Island LakeFrontenac—21.3 ft11.4 µg/L-
33Gould LakeFrontenac—18 ft6.7 µg/L-
34Green LakeFrontenac—21.2 ft5.2 µg/L-
35Grindstone LakeFrontenac—18 ft4.9 µg/L-
36Guerley LakeFrontenac—13.1 ft14.5 µg/L-
37Hambly LakeFrontenac—14.6 ft10.2 µg/L-
38Horseshoe LakeFrontenac—9.8 ft8.5 µg/L-
39Howes LakeFrontenac—12.8 ft17.3 µg/L-
40Hungry LakeFrontenac—7.9 ft6.7 µg/L-
41Inverary LakeFrontenac—5.9 ft19.1 µg/L-
42Kashwakamak LakeFrontenac—15.7 ft7.2 µg/L-
43Kennebec LakeFrontenac—8.9 ft9.6 µg/L-
44Knowlton LakeFrontenac—13.1 ft8.2 µg/L-
45Little Long LakeFrontenac—14.9 ft9.7 µg/L-
46Long LakeFrontenac—11.2 ft15.2 µg/L-
47Long Schooner LakeFrontenac—20.2 ft16.4 µg/L-
48Loughborough LakeFrontenac—13.1 ft11.7 µg/L-
49Lower Rock LakeFrontenac—16.1 ft8.3 µg/L-
50Lucky LakeFrontenac—21.3 ft8.2 µg/L-

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