Gravel Lake
Rolette County, WisconsinLimited DataEutrophic
Gravel Lake is a productive, nutrient-rich eutrophic lake in Rolette County, ND. Water quality is graded D based on 1 sampling years through 2025. Compared to the 13 other monitored lakes in Rolette County, Gravel Lake ranks #12 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2025-10-01. Grade methodology: LakeGrade methodology.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 6.1 ft. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.1 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #12 of 14 lakes in Rolette County
Cleaner Lakes Within 30 Miles
Gravel Lake holds Grade D. 4 nearby lakes hold higher grades.
- ALake UpsilonRolette County · 0.4 mi · Two grade letters higher (D → A)
- BJarvis Lake CenterRolette County · 2.3 mi · Two grade letters higher (D → B)
- BWheaton LakeRolette County · 3.4 mi · Two grade letters higher (D → B)
- BGordon Center LakeRolette County · 3.6 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: 2025-10-01
Monitoring stations: 1