Polk County Lake Quality
Oregon, 3 lakes, measured by Oregon DEQ
Polk County has 3 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. The 3 monitored lakes in Polk County carry whatever clarity, phosphorus, and chlorophyll-a readings Oregon DEQ has published, shown as reported.
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.
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Quick Answers for Polk County
Planning a trip? Check special fishing regulations for Lillie Walker Irrigation Pond — or check the official Oregon fishing regulations.
All Lakes in Polk County
3 lakes · 0 ranked on readings, 3 without enough sampling0 lakes ranked on readings · 3 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Lillie Walker Irrigation PondPolk | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Morgan LakePolk | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Aaron Mercer ReservoirPolk | 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 Oregon Department of Environmental Quality. See data sources.