What is the cleanest lake in Muskoka District County, Ontario?

Ada Lake in Muskoka District County is the cleanest lake on the readings in Muskoka District County, Ontario with an EPA water-quality readings of — and 6.9 feet of water clarity.

How are these rankings calculated?

Nutrients and algae, total phosphorus, nitrogen, chlorophyll-a and turbidity, are read against EPA National Lakes Assessment 2022 condition classes for that lake’s ecoregion. Water clarity (Secchi depth) is measured and shown; it is not the letter. Lakes without enough recent samples are UNRATED, not given an F. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in Muskoka District County, Ontario

Ada Lake in Muskoka District County leads the rankings on measured clarity and nutrients and 6.9 ft of clarity. Below are the top 50 cleanest monitored lakes in Muskoka District County, Ontario, ranked by EPA water quality score.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Ada Lake	Muskoka District	—	6.9 ft	17.6 µg/L	-
2	Barron Lake	Muskoka District	—	2.6 ft	28.4 µg/L	-
3	Bass Lake	Muskoka District	—	5.9 ft	26.6 µg/L	-
4	Bass Lake	Muskoka District	—	11.5 ft	13.4 µg/L	-
5	Baxter Lake	Muskoka District	—	11.2 ft	9.8 µg/L	-
6	Bella Lake	Muskoka District	—	16.4 ft	7.6 µg/L	-
7	Ben Lake	Muskoka District	—	4.9 ft	8.6 µg/L	-
8	Bigwind Lake	Muskoka District	—	14.8 ft	5.4 µg/L	-
9	Bird Lake	Muskoka District	—	9.8 ft	10.1 µg/L	-
10	Bonnie Lake	Muskoka District	—	19.7 ft	5 µg/L	-
11	Brandy Lake	Muskoka District	—	3.6 ft	24.9 µg/L	-
12	Brooks Lake	Muskoka District	—	11.5 ft	6.6 µg/L	-
13	Bruce Lake	Muskoka District	—	9.8 ft	11.1 µg/L	-
14	Buck Lake	Muskoka District	—	20.7 ft	8.3 µg/L	-
15	Butterfly Lake	Muskoka District	—	9.2 ft	14.3 µg/L	-
16	Camp Lake	Muskoka District	—	23 ft	5.8 µg/L	-
17	Cardwell Lake	Muskoka District	—	4.9 ft	9.9 µg/L	-
18	Chub Lake	Muskoka District	—	6.6 ft	10.4 µg/L	-
19	Chub Lake	Muskoka District	—	11 ft	6.3 µg/L	-
20	Clark Lake	Muskoka District	—	3.3 ft	13.1 µg/L	-
21	Clear Lake	Muskoka District	—	21.3 ft	5 µg/L	-
22	Clearwater Lake	Muskoka District	—	18 ft	6 µg/L	-
23	Cognashene Lake	Muskoka District	—	11.5 ft	7.7 µg/L	-
24	Cooper Lake	Muskoka District	—	11.8 ft	8.9 µg/L	-
25	Cornall Lake	Muskoka District	—	11.2 ft	19.6 µg/L	-
26	Dark Lake	Muskoka District	—	4.9 ft	14.1 µg/L	-
27	Deer Lake	Muskoka District	—	21.3 ft	5.9 µg/L	-
28	Dickie Lake	Muskoka District	—	8.2 ft	6.2 µg/L	-
29	Doe Lake	Muskoka District	—	5.6 ft	25.3 µg/L	-
30	Echo Lake	Muskoka District	—	10.8 ft	7.5 µg/L	-
31	Ennis Lake	Muskoka District	—	10.2 ft	7.9 µg/L	-
32	Fairy Lake	Muskoka District	—	8.5 ft	8.1 µg/L	-
33	Fifteen Mile Lake	Muskoka District	—	18 ft	6.8 µg/L	-
34	Fox Lake	Muskoka District	—	6.6 ft	9.1 µg/L	-
35	Frau Lake	Muskoka District	—	10.8 ft	12.9 µg/L	-
36	Gibson Lake	Muskoka District	—	7.2 ft	12.9 µg/L	-
37	Gilleach Lake	Muskoka District	—	4.9 ft	10.6 µg/L	-
38	Go Home Lake	Muskoka District	—	13.8 ft	6.3 µg/L	-
39	Golden City Lake	Muskoka District	—	6.6 ft	12.8 µg/L	-
40	Gull Lake	Muskoka District	—	12.1 ft	8 µg/L	-
41	Gullfeather Lake	Muskoka District	—	6.6 ft	12.4 µg/L	-
42	Haggart Lake	Muskoka District	—	4.9 ft	9.7 µg/L	-
43	Harp Lake	Muskoka District	—	15.7 ft	6.6 µg/L	-
44	Healey Lake	Muskoka District	—	6.2 ft	9.4 µg/L	-
45	Henshaw Lake	Muskoka District	—	14.4 ft	5.7 µg/L	-
46	Hesners Lake	Muskoka District	—	13.1 ft	6.7 µg/L	-
47	High Lake	Muskoka District	—	13.8 ft	4.6 µg/L	-
48	Jessop Lake	Muskoka District	—	3.3 ft	9.1 µg/L	-
49	Jevins Lake	Muskoka District	—	6.9 ft	10.5 µg/L	-
50	Joseph Lake	Muskoka District	—	21.3 ft	3.3 µg/L	-

Ranked List

More Answers for Muskoka District County, Ontario