Berkshire County Lake Quality
Massachusetts, 7 lakes, average grade B (Good)
Only 7 lakes in Berkshire County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. The county-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Card Pond (A) is the cleanest in the county.
Quick Answers for Berkshire County
Planning a trip? Check special fishing regulations for Card Pond — or check the official Massachusetts fishing regulations.
All Lakes in Berkshire County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Card Pond | A | - | - |
| 2 | Benton Pond | A | - | - |
| 3 | Ashley Lake | A | - | - |
| 4 | West Branch Walker Brook Lake | A | - | - |
| 5 | Buckley-Dunton Lake | B | - | - |
| 6 | Windsor Lake | B | - | - |
| 7 | Lower Spectacle Pond | C | - | - |
Other Counties in Massachusetts
See how Berkshire County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 36 states.
Where to stay near Berkshire County
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Source: EPA National Aquatic Resource Surveys, 2026.