Cleanest Lakes in Poweshiek County, Iowa
Diamond Lake in Poweshiek County leads the rankings with a water quality grade of F and 1.6 ft of clarity. Below are the top 5 cleanest monitored lakes in Poweshiek County, Iowa, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Diamond Lake | Poweshiek | F | 1.6 ft | 82.5 µg/L | 44.6 µg/L |
| 2 | Arbor Lake Max Depth | Poweshiek | F | 1.3 ft | 107 µg/L | 52.4 µg/L |
| 3 | Holiday Lake | Poweshiek | NR | - | - | - |
| 4 | Lake Ponderosa | Poweshiek | NR | - | - | - |
| 5 | Lake Ponderosa | Poweshiek | NR | - | - | - |
More Answers for Poweshiek County, Iowa
Get Poweshiek County, Iowa water-quality updates
New grades and algae readings can change this ranking. Unsubscribe anytime.