Skip to main content
LakeQuality
D

Stockhaven Lake

Douglas County, MinnesotaLimited DataEutrophic

Stockhaven Lake pulls a D on the LakeGrade rubric — phosphorus loading and limited clarity hold it below the Minnesota average. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

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 51 graded lakes of Douglas County, Stockhaven Lake sits at rank 46, near the bottom of the county list.

No invasive species are currently listed at Stockhaven Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Stockhaven Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. 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, Minnesota DNR LakeFinder, last sampled 2024-09-25. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Very murky, less than 3.3 ft of visibility. Trophic State Index: 60.

MetricValueGrade
Water Clarity (Secchi Depth)3.3 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)60Eutrophic

High nutrients, frequent algae, reduced clarity

Water Quality Trend: Improving

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.022 m/yr5

Location

Loading map…

County Ranking

Ranked #46 of 51 lakes in Douglas County

Nearby Lakes in Douglas County

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2024-09-25

Monitoring stations: 1