Skip to main content
LakeQuality
D

Shaver Lake

Hennepin County, MinnesotaLimited DataEutrophic

Shaver Lake pulls a D on the LakeGrade rubric — phosphorus loading and limited clarity hold it below the Minnesota 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.

A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. 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 Hennepin County's 104 graded lakes, Shaver Lake ranks 56 — below the local median, though not at the bottom.

No invasive species are currently listed at Shaver Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Shaver 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. 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, Minnesota DNR LakeFinder, last sampled 2025-09-14. Grade methodology: LakeGrade methodology.

Watch Shaver Lake water quality

Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 4 ft. Trophic State Index: 57.

MetricValueGrade
Water Clarity (Secchi Depth)4 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)57Eutrophic

High nutrients, frequent algae, reduced clarity

Water Quality Trend: Improving

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

MetricTrendChange/YearYears
Water Clarity Improving+0.399 m/yr6
Phosphorus Improving-1.57 µg/L/yr6
See year-by-year chart →

Location

Loading map…

County Ranking

Ranked #56 of 104 lakes in Hennepin County

Cleaner Lakes Within 30 Miles

Shaver Lake holds Grade D. One nearby lake has a higher grade.

Nearby Lakes in Hennepin County

EPA Impairment Status

Shaver Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN27-0133-01 · Official waterbody report · Matched by proximity (1.47 km)

Data Sources

Water quality data from the EPA Water Quality Portal

Impairment status from EPA ATTAINS 303(d) database

Grading methodology based on Metropolitan Council standards

Most recent sample: 2025-09-14

Monitoring stations: 1