Skip to main content
LakeQuality
D

Park Lake

Columbia County, WisconsinLimited DataEutrophic

Park Lake pulls a D on the LakeGrade rubric — phosphorus loading and limited clarity hold it below the Wisconsin average. 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.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. 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. Within the 10 graded lakes of Columbia County, Park Lake sits at rank 9, near the bottom of the county list.

No invasive species are currently listed at Park Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Park Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. 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 2020-07-23. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

No clarity data. Phosphorus level: 82.4 µg/L. Trophic State Index: 68.

MetricValueGrade
Water Clarity (Secchi Depth)No data
Phosphorus82.4 µg/LD
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)68Eutrophic

High nutrients, frequent algae, reduced clarity

Water Quality Trend: Declining

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

MetricTrendChange/YearYears
Water Clarity Declining-0.12 m/yr2
Phosphorus Stable-1.6 µg/L/yr3

Location

Loading map…

County Ranking

Ranked #9 of 10 lakes in Columbia County

Nearby Lakes in Columbia County

Eutrophic Lakes in Wisconsin

DNR Reports & Resources

Wisconsin DNR Fisheries scientists publish multi-year survey reports for Park Lake covering fish populations, stocking, water quality, and management. 2 reports on file.

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2020-07-23

Monitoring stations: 1