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LakeQuality

Unnamed Lake

Hennepin County, MinnesotaView mapDirections

Minnesota PCA publishes the water-quality measurements for Unnamed Lake. Here is what has been measured.

Phosphorus
220.5 µg/L
More phosphorus than most
Measured by Minnesota PCA
Chlorophyll-a
82 µg/L
More algae than most
Measured by Minnesota PCA
Max depth
~43 ft est.
GLOBathy model
Type
Hypereutrophic
Trophic class
Trend
Improving
4 years of samples
  • Hypereutrophic
  • 43 ft max depth

Unnamed Lake in Hennepin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Phosphorus: 220.5 µg/L. Chlorophyll-a (algae): 82 µg/L.

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Unnamed Lake is a highly nutrient-loaded hypereutrophic lake in Hennepin County, Minnesota with an estimated average depth of about 43 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. No public access — the lake is private or restricted. Compared to the 80 other monitored lakes in Hennepin County, Unnamed Lake ranks #59 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-09-13. Methodology: how these readings are compared.

Swimming conditions

Readings only

Algae risk

Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Unnamed Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Unnamed Lake

These are the measurements Minnesota PCA publishes for Unnamed Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. Phosphorus 220.5 µg/L. Chlorophyll-a 82 µg/L. TSI 78.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus221µg/LPoor
GoodFairPoor
Chlorophyll-a (algae)82µg/LPoor
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.78Hypereutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

Ask about Unnamed Lake

Answers come straight from the public measurements and survey records on this page.

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Unnamed Lake. 1 report on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

Lake Details

Max depth

~43 ft est.

Public access

No

Listed by Minnesota PCA

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Minnesota has not published bathymetry for Unnamed Lake.

Lake Size & Watershed

Watershed (drainage) area

0 sq mi

HydroLAKES / HydroSHEDS

Surface area

72 acres

HydroLAKES / HydroSHEDS

Shoreline

1.4 mi

HydroLAKES / HydroSHEDS

Elevation

984 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.

Stays via Stay22

Stays near Unnamed Lake

Compare lakeside cabins, hotels, and vacation rentals near Unnamed Lake in Hennepin County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Unnamed Lake are listed below.

Top-rated places to stay near Unnamed Lake

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Fishing Unnamed Lake

Based on 4 years of monitoring (2020–2023).

  • Water clarity

    Worsening

    2 years

  • Phosphorus

    Improving

    -48.26 µg/L/yr4 years

  • Chlorophyll-a

    Improving

    -16.04 µg/L/yr4 years

See year-by-year chart →

Nearby Lakes in Hennepin County

Frequently asked questions about Unnamed Lake

Where is Unnamed Lake?

Unnamed Lake is a lake in Hennepin County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.

What is the water quality of Unnamed Lake?

Unnamed Lake in Hennepin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Phosphorus: 220.5 µg/L. Chlorophyll-a (algae): 82 µg/L.

Measurements on this page ↑

Is Unnamed Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

How deep is Unnamed Lake?

No published bathymetric survey covers Unnamed Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 43 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.

Can I fish at Unnamed Lake?

Public access to Unnamed Lake is listed as no on the lake record, so confirm before you make the trip. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.

Hypereutrophic Lakes in Minnesota

Where this data comes from

30 measurements from 1 monitoring station, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA30 samples · 2020–2023

Analytical methods

  • Phosphorus by Colorimetry
  • Phosphorus by Two Reagent Colorimetry
  • 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)

EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.

Other records on this page

Lake size & watershed from HydroLAKES (HydroSHEDS)

Lake details from Minnesota DNR LakeFinder