Washington County Lake Quality
Pennsylvania, 4 lakes, measured by PA DEP
Washington County holds 4 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. 2 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Phosphorus and algae readings vary widely across Washington County; the per-lake pages below carry the numbers.
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. Dutch Fork Lake has the lowest nutrient and algae readings in the county.
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Quick Answers for Washington County
Planning a trip? Check special fishing regulations for Dutch Fork Lake — or check the official Pennsylvania fishing regulations.
All Lakes in Washington County
4 lakes · 2 ranked on readings, 2 without enough sampling2 lakes ranked on readings · 2 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|
| 1 | Dutch Fork LakeWashington | No recent samples | 105 µg/L | 7.6 µg/L | No recent samples | 25 ft | ✓ Public |
| 2 | Canonsburg LakeWashington | No recent samples | 75 µg/L | 35.4 µg/L | No recent samples | No recent samples | ✓ Public |
| Pond SixWashington | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Cherry Valley ReservoirWashington | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
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.