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LakeQuality
D

Unnamed Lake

Oneida County, WisconsinLimited DataEutrophic

On the scoring rubric Unnamed Lake grades a D: clarity at 6.6 ft and phosphorus readings still being added keep it in the lower bracket for Oneida County. 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.

At a TSI of 50, Unnamed Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. At 154 acres, Unnamed Lake fits the Wisconsin median for monitored lakes, with partial shoreline records. Unnamed Lake ranks 136 of 140 in Oneida County — at the lower end of the locally monitored distribution.

Unnamed Lake has no invasive species recorded in Wisconsin state databases as of 2020, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Unnamed 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 2020-07-08. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 6.6 ft. Trophic State Index: 50.

MetricValueGrade
Water Clarity (Secchi Depth)6.6 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)50Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Surface Area154 acres

Location

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County Ranking

Ranked #136 of 140 lakes in Oneida County

Cleaner Lakes Within 30 Miles

Unnamed Lake holds Grade D. 3 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Oneida County

Eutrophic Lakes in Wisconsin

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2020).

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: 2020-07-08

Monitoring stations: 1