Belcourt Inlet Lake
Rolette County, WisconsinEutrophic
Belcourt Inlet Lake is a productive, nutrient-rich eutrophic lake in Rolette County, ND. Water quality is graded D based on 2 sampling years through 2025. Compared to the 13 other monitored lakes in Rolette County, Belcourt Inlet Lake ranks #11 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2025-09-16. Grade methodology: LakeGrade methodology.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 3.3 ft of visibility. Chlorophyll-a: 10.7 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 10.7 µg/L | C |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #11 of 14 lakes in Rolette County
Cleaner Lakes Within 30 Miles
Belcourt Inlet Lake holds Grade D. 2 nearby lakes hold higher grades.
- BGordon Center LakeRolette County · 2.5 mi · Two grade letters higher (D → B)
- BWheaton LakeRolette County · 2.6 mi · Two grade letters higher (D → B)
Nearby Lakes in Rolette County
More Wisconsin Lake Rankings
Other Grade D Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-09-16
Monitoring stations: 1