Skip to main content
LakeQuality

Unnamed Lake

Scott County, MinnesotaView mapDirections

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

Clarity
2.9 ft
Murkier than most
Secchi · sampled 2024
Phosphorus
83.5 µg/L
More phosphorus than most
Measured by Minnesota PCA
Chlorophyll-a
12.4 µg/L
Typical for Minnesota
Measured by Minnesota PCA
Water temp
~56°F
Typical for Oct · EPA WQP
Type
Eutrophic
Trophic class
Trend
Improving
5 years of samples
  • Eutrophic
  • Limited data

Unnamed Lake in Scott County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 2.9 ft visibility. Phosphorus: 83.5 µg/L. Chlorophyll-a (algae): 12.4 µg/L.

Loading map…

Unnamed Lake is a productive, nutrient-rich eutrophic lake in Scott County, Minnesota. 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 20 other monitored lakes in Scott County, Unnamed Lake ranks #9 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-10-06. Methodology: how these readings are compared.

Swimming conditions

Readings only

Limited data

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.

Compare swimming lakes near Minneapolis →

Get alerts for Unnamed Lake →

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.

Very murky, less than 2.9 ft of visibility. Phosphorus 83.5 µg/L. Chlorophyll-a 12.4 µg/L. TSI 62.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2.9ftMeasured, not scored

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

Total phosphorus83.5µg/LPoor
GoodFairPoor
Chlorophyll-a (algae)12.4µg/LFair
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.62Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Unnamed Lake

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

Water Temperature

Unnamed Lake typically sits around 56°F at the surface in October. Summer average is about 73°F. Usually warmest in Jul (about 75°F) and coldest in Oct (about 56°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
69°
May
72°
Jun
75°
Jul
73°
Aug
68°
Sep
56°
Oct
Nov
Dec

Column height runs from this lake’s coldest month (56°F) to its warmest (75°F).

Typical surface water temperature by month, from 16 field readings (2019–2024) via the EPA Water Quality Portal. See the full Unnamed Lake water temperature breakdown →

Stays via Stay22

Stays near Unnamed Lake

Compare lakeside cabins, hotels, and vacation rentals near Unnamed Lake in Scott 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

Prices for Oct 9–11, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Minnesota’s top lakes →

Follow Unnamed Lake’s readings

Email me when new measurements post for this lake. Updates stay free.


Or email

Fishing Unnamed Lake

Based on 5 years of monitoring (2020–2024).

  • Phosphorus

    Improving

    -9 µg/L/yr5 years

  • Chlorophyll-a

    Improving

    -1.91 µg/L/yr5 years

See year-by-year chart →

Nearby Lakes in Scott County

Frequently asked questions about Unnamed Lake

Where is Unnamed Lake?

Unnamed Lake is a lake in Scott 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 Scott County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 2.9 ft visibility. Phosphorus: 83.5 µg/L. Chlorophyll-a (algae): 12.4 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 ↑

What is the water temperature of Unnamed Lake?

Unnamed Lake typically sits around 56°F at the surface in October, from 16 EPA Water Quality Portal field readings (2019–2024). That is a typical value for the month, not a live reading.

Temp on this page ↑

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.

Where this data comes from

32 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA32 samples · 2024

Analytical methods

  • Field measurement/observation, generic method
  • Phosphorus by Colorimetry
  • Analysis of Chlorophyll in Periphyton and Plankton
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.