Cleanest Lakes in Polk County, Nebraska
Nla Lake in Polk County leads the rankings with a water quality grade of D and 0.2 ft of clarity. Below are the top 1 cleanest monitored lakes in Polk County, Nebraska, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Polk | D | 0.2 ft | 1035.7 µg/L | 25.8 µg/L |