Lk Superior 3.3 Mi E of Superior Lake
Douglas County, WisconsinLimited DataOligotrophic
On the LakeGrade rubric, Lk Superior 3.3 Mi E of Superior Lake pulls an A: clarity readings still being added and 9 µg/L of phosphorus put it in the top bracket for Wisconsin. 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.
Trophically, Lk Superior 3.3 Mi E of Superior Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Lk Superior 3.3 Mi E of Superior Lake ranks 11 of 40 in Douglas County — solidly in the upper half of the local distribution.
No invasive species are currently listed at Lk Superior 3.3 Mi E of Superior Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Lk Superior 3.3 Mi E of Superior Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2022-08-26. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
No clarity data. Phosphorus level: 9 µg/L. Trophic State Index: 36.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 9 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 36 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -11.8 m/yr | 2 |
| Phosphorus | ↓ Declining | +6.3 µg/L/yr | 2 |
Location
County Ranking
Ranked #11 of 40 lakes in Douglas County
Nearby Lakes in Douglas County
More Wisconsin Lake Rankings
State Parks Near Lk Superior 3.3 Mi E of Superior Lake
Other Grade A Lakes in Wisconsin
Waukesha County · Clarity: 14.6 ft
Waukesha County · Clarity: 13.8 ft
Walworth County · Clarity: 19 ft
Washington County · Clarity: 12 ft
Kenosha County · Clarity: 10.1 ft
Washington County · Clarity: 12.5 ft
Oligotrophic Lakes in Wisconsin
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: 2022-08-26
Monitoring stations: 1