What is the cleanest lake in Plymouth County, Massachusetts?

Wright Reservoir in Plymouth County has the cleanest nutrient and algae readings in Plymouth County, Massachusetts.

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 separately. Lakes without enough recent samples are listed without a condition class rather than ranked low. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in Plymouth County, Massachusetts

Wright Reservoir in Plymouth County leads the rankings on measured clarity and nutrients. Below are the top 50 cleanest monitored lakes in Plymouth County, Massachusetts, ranked on EPA nutrient and algae measurements.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Wright Reservoir	Plymouth	-	-	-
2	North Hill Pond	Plymouth	-	-	-
3	South River Reservoir	Plymouth	-	-	-
4	Lower Chandler Pond	Plymouth	-	-	-
5	Island Creek Pond	Plymouth	-	-	-
6	Bartlett Pond	Plymouth	-	-	-
7	Savery Pond	Plymouth	-	-	-
8	Bloody Pond	Plymouth	-	-	-
9	Long Pond	Plymouth	-	-	-
10	Gallows Pond	Plymouth	-	-	-
11	Little Long Pond	Plymouth	-	-	-
12	Island Pond	Plymouth	-	-	-
13	Beaver Dam Pond	Plymouth	-	-	-
14	Boot Pond	Plymouth	-	-	-
15	Great South Pond	Plymouth	-	-	-
16	Curlew Pond	Plymouth	-	-	-
17	Gunners Exchange Pond	Plymouth	-	-	-
18	College Pond	Plymouth	-	-	-
19	East Head Pond	Plymouth	-	-	-
20	Dunham Pond	Plymouth	-	-	-
21	Crane Brook Bog Pond	Plymouth	-	-	-
22	Sampson Pond	Plymouth	-	-	-
23	Federal Pond	Plymouth	-	-	-
24	Wenham Pond	Plymouth	-	-	-
25	Fresh Meadow Pond	Plymouth	-	-	-
26	Darby Pond	Plymouth	-	-	-
27	Big West Pond	Plymouth	-	-	-
28	Little South Pond	Plymouth	-	-	-
29	Russell Millpond	Plymouth	-	-	-
30	Little Pond	Plymouth	-	-	-
31	Billington Sea	Plymouth	-	-	-
32	Muddy Pond	Plymouth	-	-	-
33	Indian Pond	Plymouth	-	-	-
34	Muddy Pond	Plymouth	-	-	-
35	Tispaquin Pond	Plymouth	-	-	-
36	Woods Pond	Plymouth	-	-	-
37	Assawompset Pond	Plymouth	-	-	-
38	Loon Pond	Plymouth	-	-	-
39	Elders Pond	Plymouth	-	-	-
40	Carver Pond	Plymouth	-	-	-
41	Lake Nippenicket	Plymouth	-	-	-
42	Town River Reservoir	Plymouth	-	-	-
43	West Meadow Brook Pond	Plymouth	-	-	-
44	Robbins Reservoir	Plymouth	-	-	-
45	Burrage Pond - Lower Reservoir	Plymouth	-	-	-
46	West Lake	Plymouth	-	-	-
47	Little Sandy Bottom Pond	Plymouth	-	-	-
48	Great Sandy Bottom Pond	Plymouth	-	-	-
49	Indian Head Pond	Plymouth	-	-	-
50	Burrage Pond - Upper Reservoir	Plymouth	-	-	-

Ranked List

More Answers for Plymouth County, Massachusetts