Cleanest Lakes in Mason County, Illinois
Sand Lake in Mason County leads the rankings with a water quality grade of NR. Below are the top 20 cleanest monitored lakes in Mason County, Illinois, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Sand Lake | Mason | NR | - | - | - |
| 2 | Lake Chautauqua | Mason | NR | - | - | - |
| 3 | Matanzas Lake | Mason | NR | - | - | - |
| 4 | Bath Lake | Mason | NR | - | - | - |
| 5 | Moscow Lake | Mason | NR | - | - | - |
| 6 | Bell Lake | Mason | NR | - | - | - |
| 7 | Jack Lake | Mason | NR | - | - | - |
| 8 | Patterson Bay | Mason | NR | - | - | - |
| 9 | Wolf Lake | Mason | NR | - | - | - |
| 10 | River Swale | Mason | NR | - | - | - |
| 11 | Mound Lake | Mason | NR | - | - | - |
| 12 | Otter Lake | Mason | NR | - | - | - |
| 13 | Wilcox Lake | Mason | NR | - | - | - |
| 14 | Crane Lake | Mason | NR | - | - | - |
| 15 | Cross Slough | Mason | NR | - | - | - |
| 16 | Ingram Lake | Mason | NR | - | - | - |
| 17 | Chain Lake | Mason | NR | - | - | - |
| 18 | Liverpool Lake | Mason | NR | - | - | - |
| 19 | Quiver Lake | Mason | NR | - | - | - |
| 20 | Quiver Lake | Mason | NR | - | - | - |
More Answers for Mason County, Illinois
Get Mason County, Illinois water-quality updates
New grades and algae readings can change this ranking. Unsubscribe anytime.