Jefferson County Lake Quality
Pennsylvania, 2 lakes, measured by PA DEP
Jefferson County has 2 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. 1 of those lake carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. The county's readings sit in the middle of the Pennsylvania range, with one or two lakes pulling the average up or down depending on year.
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. Kyle Lake has the lowest nutrient and algae readings in the county.
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Quick Answers for Jefferson County
Planning a trip? Check special fishing regulations for Kyle Lake — or check the official Pennsylvania fishing regulations.
All Lakes in Jefferson County
2 lakes · 1 ranked on readings, 1 without enough sampling1 lake ranked on readings · 1 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| 1 | Kyle LakeJefferson | No recent samples | 23 µg/L | 6 µg/L | No recent samples | ✓ Public |
| Cloe LakeJefferson | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the Pennsylvania Department of Environmental Protection. See data sources.