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LakeQuality
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Wazee Lake

Jackson County, WisconsinOligotrophic

Wazee Lake sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in 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, Wazee Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. At 350 ft of maximum depth, Wazee Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. At 146 acres, Wazee Lake fits the Wisconsin median for monitored lakes, with partial shoreline records. Among the 4 graded lakes in Jackson County, Wazee Lake sits at rank 2, above the county median.

Eurasian watermilfoil is established at Wazee Lake, which can dampen recreational access and pressure the native plant community. The state fisheries records do not list documented species for Wazee Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. Public access is available — the lake is on the Wisconsin DNR public-access list. 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 2022-06-22. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 105.8 ft down. Phosphorus level: 9.3 µg/L. Trophic State Index: 23.

MetricValueGrade
Water Clarity (Secchi Depth)105.8 ftA
Phosphorus9.3 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)23Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth350 ft
Surface Area146 acres
Public AccessYes

Invasive Species

Curly-Leaf PondweedEurasian Water-Milfoil

Water Quality Trend: Declining

Based on 3 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-1.5 m/yr2

Recreation & Access

1
Boat Landings
Yes
Public Access

Location

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County Ranking

Ranked #2 of 4 lakes in Jackson County

Nearby Lakes in Jackson County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2025).

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: 2022-06-22

Monitoring stations: 1