Fuller Lake
Oneida County, WisconsinEutrophic
The LakeGrade rubric puts Fuller Lake at a C: clarity at 4.3 ft, 25 µg/L of phosphorus, and a TSI of 53 signal an intermediate trophic state. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Wisconsin norms.
A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. 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. Fuller Lake sits at rank 70 of 134 in Oneida County, in the lower half of the local distribution.
No invasive species are currently listed at Fuller Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Fuller 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 2026-05-15. Grade methodology: LakeGrade methodology.
Watch Fuller Lake water quality
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 4.3 ft. Phosphorus level: 24.8 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.3 ft | D |
| Phosphorus | 24.8 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.014 m/yr | 6 |
| Phosphorus | ↑ Improving | -1.09 µg/L/yr | 6 |
Location
County Ranking
Ranked #70 of 134 lakes in Oneida County
Cleaner Lakes Within 30 Miles
Fuller Lake holds Grade C. 2 nearby lakes hold higher grades.
- AGreat Bass LakeOneida County · mi · Two grade letters higher (C → A)
- BBroken Bow LakeVilas County · mi · Higher grade (C → B)
Nearby Lakes in Oneida 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: 2026-05-15
Monitoring stations: 2
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