Isle la Motte Lake
Clinton County, WisconsinOligotrophic
Isle la Motte Lake is a cold, clear oligotrophic lake in Clinton County, NY. Water quality is graded A based on 3 sampling years through 2024. Compared to the 2 other monitored lakes in Clinton County, Isle la Motte Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-10-21. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 15.4 ft down. Phosphorus level: 8.7 µg/L. Chlorophyll-a: 5 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.4 ft | A |
| Phosphorus | 8.7 µg/L | A |
| Chlorophyll-a (Algae) | 5 µg/L | B |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Location
County Ranking
Ranked #1 of 3 lakes in Clinton County
Nearby Lakes in Clinton County
More Wisconsin Lake Rankings
Other Grade A Lakes in Wisconsin
Oligotrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-10-21
Monitoring stations: 1