Franklin County Lake Quality
Idaho, 8 lakes, measured by Idaho DEQ
Franklin County holds 8 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. The 8 monitored lakes in Franklin County carry whatever clarity, phosphorus, and chlorophyll-a readings Idaho 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 Franklin County
Planning a trip? Check special fishing regulations for Oneida Narrows Reservoir — or check the official Idaho fishing regulations.
All Lakes in Franklin County
8 lakes · 0 ranked on readings, 8 without enough sampling0 lakes ranked on readings · 8 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Oneida Narrows ReservoirFranklin | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Strongarm Reservoir Number OneFranklin | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Winder ReservoirFranklin | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Glendale ReservoirFranklin | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Foster ReservoirFranklin | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| Johnson ReservoirFranklin | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Lamont ReservoirFranklin | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| Twin Lakes ReservoirFranklin | 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 Idaho Department of Environmental Quality. See data sources.