Spiritwood Lake
Stutsman County, WisconsinOligotrophic
Spiritwood Lake is a cold, clear oligotrophic lake in Stutsman County, ND. Water quality is graded A based on 2 sampling years through 2025. Compared to the 6 other monitored lakes in Stutsman County, Spiritwood Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2025-09-23. 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 31 ft down. Chlorophyll-a: 5.5 µg/L. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 31 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 5.5 µg/L | B |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Location
County Ranking
Ranked #1 of 7 lakes in Stutsman County
Nearby Lakes in Stutsman 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: 2025-09-23
Monitoring stations: 1