Frettum Dam Lake
Kidder County, WisconsinEutrophic
Frettum Dam Lake is a productive, nutrient-rich eutrophic lake in Kidder County, ND. Water quality is graded C based on 2 sampling years through 2024. Compared to the 2 other monitored lakes in Kidder County, Frettum Dam Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-10-10. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 2.6 ft of visibility. Chlorophyll-a: 4.2 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.6 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 4.2 µg/L | A |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #3 of 3 lakes in Kidder County
Cleaner Lakes Within 30 Miles
Frettum Dam Lake holds Grade C. 2 nearby lakes hold higher grades.
- BLake WilliamsKidder County · 5.8 mi · Higher grade (C → B)
- BClark LakeStutsman County · 14.7 mi · Higher grade (C → B)
Nearby Lakes in Kidder County
More Wisconsin Lake Rankings
Other Grade C 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: 2024-10-10
Monitoring stations: 1