Double Lake
Cottonwood County, MinnesotaView mapDirections
Minnesota PCA publishes the water-quality measurements for Double Lake. Here is what has been measured.
- Impaired · Impaired biota (cause unknown)
- 44 ft max depth
- Public access
- Limited data
Double Lake in Cottonwood County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 1 ft visibility.
Double Lake is a lake in Cottonwood County, Minnesota with an estimated average depth of about 44 feet. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-07-18. Methodology: how these readings are compared.
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Double Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), nutrients (phosphorus, nitrogen), pesticides. Check local advisories before you swim.
Whether Double 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.
Water quality measurements for Double Lake
These are the measurements Minnesota PCA publishes for Double 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 1 ft of visibility. TSI 78.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 78 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Double Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Double Lake typically sits around 62°F at the surface in September. Summer average is about 76°F. Usually warmest in Jul (about 80°F) and coldest in May (about 61°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (61°F) to its warmest (80°F).
Typical surface water temperature by month, from 17 field readings (2017–2022) via the EPA Water Quality Portal. See the full Double Lake water temperature breakdown →
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Double Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Public Water Access Sites — Double (North Portion)Public Water Access Sites · MN DNR LakeFinder
Lake Details
Max depth
~44 ft est.
Public access
Yes
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 Double Lake.
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Surface area
210 acres
HydroLAKES / HydroSHEDS
Shoreline
3.2 mi
HydroLAKES / HydroSHEDS
Elevation
1,355 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 Double Lake
Compare lakeside cabins, hotels, and vacation rentals near Double Lake in Cottonwood 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.
Top-rated places to stay near Double Lake
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Fishing Double Lake
EPA Impairment Status
Double Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN17-0056-01 · Official waterbody report
Nearby Lakes in Cottonwood County
Frequently asked questions about Double Lake
Where is Double Lake?
- Double Lake is a lake in Cottonwood County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Double Lake?
- Double Lake in Cottonwood County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 1 ft visibility.
Is Double Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Double Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), nutrients (phosphorus, nitrogen), pesticides. Check local advisories before you swim.
What is the water temperature of Double Lake?
- Double Lake typically sits around 62°F at the surface in September, from 17 EPA Water Quality Portal field readings (2017–2022). That is a typical value for the month, not a live reading.
How deep is Double Lake?
- No published bathymetric survey covers Double Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 44 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 Double Lake?
- Public access to Double Lake is listed as yes on the lake record. 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.
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Where this data comes from
1 measurement from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Department of Agriculture - Pesticide Monitoring
MNDA_PESTICIDE1 sample · 2022
Analytical methods
- Field measurement/observation, generic method
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder