Cleanest Lakes in Johnson County, Arkansas
Horsehead Lake in Johnson County leads the rankings with a water quality grade of C. Below are the top 2 cleanest monitored lakes in Johnson County, Arkansas, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Horsehead Lake | Johnson | C | - | 30 µg/L | 13.5 µg/L |
| 2 | Nla Lake | Johnson | D | 6 ft | 30000 µg/L | 6.7 µg/L |