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B

Unnamed Lake

Oneida County, WisconsinLimited DataMesotrophic

Unnamed Lake comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth. 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.

Mesotrophic conditions dominate at Unnamed Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. A maximum depth of just 12 ft means sediment-bound phosphorus releases back into the water column whenever wind stirs the bottom — a classic shallow-lake dynamic. The lake is compact at 2 acres, with partial shoreline records and little volume to buffer nutrient inputs. Unnamed Lake ranks 50 of 134 in Oneida County — solidly in the upper half of the local distribution.

Unnamed Lake has no invasive species recorded in Wisconsin state databases as of 2022, 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 2022-08-09. Grade methodology: LakeGrade methodology.

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 10.9 ft. Trophic State Index: 43.

MetricValueGrade
Water Clarity (Secchi Depth)10.9 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)43Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth12 ft
Surface Area2 acres

Water Quality Trend: Declining

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.657 m/yr6
Phosphorus Stable+0.07 µg/L/yr6
See year-by-year chart →

Location

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County Ranking

Ranked #50 of 134 lakes in Oneida County

Cleaner Lakes Within 30 Miles

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

Nearby Lakes in Oneida County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2022).

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: 2022-08-09

Monitoring stations: 1

Where to stay near Unnamed Lake

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