Mesotrophic Lakes in Pennsylvania
0 mesotrophic lakes in Pennsylvania. Moderate nutrients, good water quality.
Most well-managed working lakes register as mesotrophic — the band that balances productivity with clarity. 0 lakes in Pennsylvania 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.
All mesotrophic lakes →Minnesota version →Wisconsin version →Illinois version →Michigan version →Iowa version →Ohio version →New York version →Missouri version →Indiana version →North Dakota version →South Dakota version →All Pennsylvania lakes →
Source: EPA National Aquatic Resource Surveys, 2026.