Eutrophic Lakes in Massachusetts

43 eutrophic lakes in Massachusetts. High nutrients, frequent algae, reduced clarity.

A eutrophic lake is a productive ecosystem with the trade-offs that come with productivity: more food at the base of the food web, more clarity reduction by mid-summer, more dissolved-oxygen variability near the bottom. 43 {{stateName}} lakes register as eutrophic. Only 0% are deep — eutrophy correlates with shallowness, agricultural watersheds, and the kind of nutrient-input history that takes decades to shift.

Eutrophic lakes typically grade C or D on the LakeGrade rubric. The same nutrient richness that defines the trophic class drives the lower grade.

#	Lake	County	Grade	Clarity	Depth	TSI
1	Upper Mystic Lake	Middlesex	B	-	-	52
2	Windsor Lake	Berkshire	B	-	-	53
3	Tully Pond	Franklin	B	-	-	50
4	Stodge Meadow Pond	Worcester	B	-	-	52
5	Boons Pond	Middlesex	B	-	-	53
6	Mashpee Pond	Barnstable	B	-	-	52
7	Stillwater Pond	Barnstable	B	-	-	52
8	Watson Pond	Bristol	B	-	-	50
9	Ames Long Pond	Bristol	B	-	-	52
10	Fresh Pond	Plymouth	B	-	-	52
11	Monponsett Pond	Plymouth	C	-	-	56
12	White Oak Brook Lake	Plymouth	C	-	-	54
13	White Island Pond	Plymouth	C	-	-	54
14	Stetson Pond	Plymouth	C	-	-	54
15	Congamond Lakes	Hartford	C	-	-	60
16	Lower Spectacle Pond	Berkshire	C	-	-	59
17	East Brimfield Reservoir	Worcester	C	-	-	54
18	Muddy Brook Lake	Worcester	C	-	-	56
19	Robbins Pond	Worcester	C	-	-	54
20	Stiles Pond	Essex	C	-	-	55
21	Heart Pond	Middlesex	C	-	-	58
22	Cleveland Pond	Plymouth	C	-	-	58
23	Hinckleys Pond	Barnstable	C	-	-	58
24	Coonamessett Pond	Barnstable	C	-	-	58
25	Williams Pond	Barnstable	C	-	-	54
26	Halfway Pond	Plymouth	C	-	-	59
27	Jemima Pond	Barnstable	C	-	-	55
28	Indian Lake	Worcester	C	-	-	56
29	Horn Pond	Middlesex	C	-	-	56
30	Pequot Pond	Hampden	D	-	-	63
31	Ten Mile River Lake	Bristol	D	-	-	61
32	Santuit Pond	Barnstable	F	-	-	69
33	Nashawannuck Pond	Hampshire	F	-	-	65
34	Bartlett Pond	Worcester	F	-	-	66
35	Upper Artichoke Reservoir	Essex	F	-	-	68
36	Little Chauncy Pond	Worcester	F	-	-	64
37	Gleasons Pond	Middlesex	F	-	-	68
38	Barkers Pond	Middlesex	F	-	-	70
39	Furnace Pond	Plymouth	F	-	-	68
40	Mill Pond	Barnstable	F	-	-	64
41	Cooks Pond	Plymouth	F	-	-	69
42	South Watuppa Pond	Bristol	F	-	-	68
43	Spy Pond	Middlesex	F	-	-	65

All eutrophic lakes →Minnesota version →Wisconsin version →Illinois version →Michigan version →Iowa version →Ohio version →Pennsylvania version →New York version →Missouri version →Indiana version →North Dakota version →South Dakota version →Florida version →Colorado version →North Carolina version →Vermont version →Texas version →Oregon version →Arkansas version →Oklahoma version →Kansas version →Nebraska version →Nevada version →Arizona version →Idaho version →Montana version →New Mexico version →Tennessee version →Alabama version →Virginia version →Kentucky version →Utah version →Washington version →Wyoming version →Georgia version →All Massachusetts lakes →

Source: EPA National Aquatic Resource Surveys, 2026.