Mesotrophic Lakes in Massachusetts
38 mesotrophic lakes in Massachusetts. Moderate nutrients, good water quality.
Most well-managed working lakes register as mesotrophic — the band that balances productivity with clarity. 38 lakes in {{stateName}} sit in the mesotrophic band. About 0% are deep (50+ ft); the rest are shallower basins where watershed management keeps nutrients from pushing the system into eutrophy.
Mesotrophic lakes tend to grade B or C on the LakeGrade rubric — the productive-but-clear band lines up with the middle of the letter grades.
| # | Lake | County | Grade | Clarity | Depth | TSI |
|---|---|---|---|---|---|---|
| 1 | Silver Lake | Plymouth | A | - | - | 41 |
| 2 | Long Pond | Barnstable | A | - | - | 46 |
| 3 | Gaston Pond | Worcester | A | - | - | 43 |
| 4 | Vinica Pond | Hampden | A | - | - | 45 |
| 5 | Card Pond | Berkshire | A | - | - | 43 |
| 6 | Queen Lake | Worcester | A | - | - | 41 |
| 7 | Roaring Brook Lake | Franklin | A | - | - | 42 |
| 8 | Wrights Reservoir | Worcester | A | - | - | 41 |
| 9 | Ashley Lake | Berkshire | A | - | - | 45 |
| 10 | Quacumquasit Pond | Worcester | A | - | - | 43 |
| 11 | Hamilton Reservoir | Hampden | A | - | - | 41 |
| 12 | Atkins Reservoir | Franklin | A | - | - | 45 |
| 13 | Webster Lake | Worcester | A | - | - | 44 |
| 14 | Damon Pond | Hampshire | A | - | - | 44 |
| 15 | Lily Pond | Worcester | A | - | - | 46 |
| 16 | Crystal Lake | Essex | A | - | - | 41 |
| 17 | Crystal Lake | Worcester | A | - | - | 42 |
| 18 | Walden Pond | Essex | A | - | - | 41 |
| 19 | Fitchburg Reservoir | Middlesex | A | - | - | 41 |
| 20 | Ponkapoag Pond | Norfolk | A | - | - | 41 |
| 21 | Fort Pond | Worcester | A | - | - | 45 |
| 22 | Lower Crow Hill Pond | Worcester | A | - | - | 41 |
| 23 | Wankinco River Lake | Plymouth | A | - | - | 44 |
| 24 | White Pond | Barnstable | A | - | - | 41 |
| 25 | Chebacco Lake | Essex | A | - | - | 46 |
| 26 | Long Pond | Worcester | B | - | - | 48 |
| 27 | Long Pond | Barnstable | B | - | - | 48 |
| 28 | Little River Lake | Worcester | B | - | - | 48 |
| 29 | Buckley-Dunton Lake | Berkshire | B | - | - | 50 |
| 30 | Metacomet Lake | Hampshire | B | - | - | 47 |
| 31 | Sargent Pond | Worcester | B | - | - | 47 |
| 32 | Field Pond | Essex | B | - | - | 49 |
| 33 | Cambridge Reservoir | Middlesex | B | - | - | 47 |
| 34 | Nabnasset Pond | Middlesex | B | - | - | 48 |
| 35 | Ezekiel Pond | Plymouth | B | - | - | 46 |
| 36 | Shubael Pond | Barnstable | B | - | - | 49 |
| 37 | Island Pond | Plymouth | B | - | - | 48 |
| 38 | Chebacco Lake | Essex | B | - | - | 48 |
All mesotrophic 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.