Cleanest Lakes in Johnson County, Kansas
Nla Lake in Johnson County leads the rankings with a water quality grade of B and 3.4 ft of clarity. Below are the top 18 cleanest monitored lakes in Johnson County, Kansas, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Johnson | B | 3.4 ft | 22.7 µg/L | 7.6 µg/L |
| 2 | New Olathe Lake | Johnson | C | 3.4 ft | 29 µg/L | 10 µg/L |
| 3 | Lenexa Lake | Johnson | C | - | 29 µg/L | 16.2 µg/L |
| 4 | Ernie Miller Park Lake | Johnson | C | - | 55.6 µg/L | 16.5 µg/L |
| 5 | Olathe Lake | Johnson | C | 3.3 ft | 80 µg/L | 13 µg/L |
| 6 | Gardner Lake | Johnson | C | 2.3 ft | 17 µg/L | 43.5 µg/L |
| 7 | Nla Lake | Johnson | D | 3.1 ft | 45000 µg/L | 13.2 µg/L |
| 8 | Stoll Park Lake | Johnson | D | - | 65.1 µg/L | 21.9 µg/L |
| 9 | Lenexa City Lake | Johnson | D | 2.4 ft | 71 µg/L | 40 µg/L |
| 10 | Sar Ko Park Lake | Johnson | D | - | 92.5 µg/L | 51.9 µg/L |
| 11 | Leawood Park Lake | Johnson | D | - | 545.4 µg/L | 37.8 µg/L |
| 12 | Cedar Lake | Johnson | F | 1.6 ft | 116.5 µg/L | 41 µg/L |
| 13 | Kingston Lake Park | Johnson | F | - | 140.2 µg/L | 58.8 µg/L |
| 14 | Tomahawk Creek Park Lake | Johnson | F | - | 162.1 µg/L | 44.2 µg/L |
| 15 | South Lake | Johnson | F | - | 181.9 µg/L | 79.6 µg/L |
| 16 | Water Works Park Lake | Johnson | F | - | 104.7 µg/L | 107 µg/L |
| 17 | Summer Crest Park Lake | Johnson | F | - | 109.6 µg/L | 93.5 µg/L |
| 18 | Antioch Park Lake | Johnson | F | - | 355.8 µg/L | 61.5 µg/L |