Wilson Flowage Lake
Price County, WisconsinEutrophic
Wilson Flowage Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.
Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. At only 11 ft deep, Wilson Flowage Lake is shallow — wind keeps the water column mixed and sediment resuspension drives phosphorus levels harder to manage. The lake's 348 acres and partial shoreline records put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Within the 26 graded lakes of Price County, Wilson Flowage Lake sits at rank 25, near the bottom of the county list.
Eurasian watermilfoil has been documented at Wilson Flowage Lake, requiring shoreline management to keep dense mats from crowding native vegetation. Walleye are documented at Wilson Flowage Lake, one of 5 fish species on record for the lake. A documented public access point at Wilson Flowage Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-10-01. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 8.9 ft. Phosphorus level: 52.6 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.9 ft | C |
| Phosphorus | 52.6 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 11 ft |
| Surface Area | 348 acres |
| Public Access | Yes |
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Wilson Flowage Lake (14-day solunar calendar)
→ Is it safe to eat fish from Wilson Flowage Lake? (mercury & PFAS guide)
→ Wilson Flowage Lake fishing regulations (limits, seasons, special rules)
Invasive Species
Water Quality Trend: ↓ Declining
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.182 m/yr | 4 |
Recreation & Access
Location
County Ranking
Ranked #25 of 26 lakes in Price County
Cleaner Lakes Within 30 Miles
Wilson Flowage Lake holds Grade C. 2 nearby lakes hold higher grades.
- ALake Ten-Deep HolePrice County · 4 mi · Two grade letters higher (C → A)
- ABig Dardis LakePrice County · 7.2 mi · Two grade letters higher (C → A)
Nearby Lakes in Price County
More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 3 stations on file (most recent sample 2024).
Fish Species (DNR-rated)
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Most recent sample: 2024-10-01
Monitoring stations: 1