Chub Lake
Dakota County, Minnesota228 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Chub Lake. Here is what has been measured.
- Impaired · Nutrients (phosphorus, nitrogen)
- 10 ft max depth
- Limited data
Chub Lake in Dakota County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 0.5 ft visibility. Maximum depth: 10 ft. Surface area: 228.02 acres.
Minnesota DNR's Standard Survey on August 5, 1985 caught 91.00 green sunfish per trap net at Chub Lake. DNR survey details →
Chub Lake is a 228-acre lake in Dakota County, Minnesota with a maximum depth of 10 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-05-25. Methodology: how these readings are compared.
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Chub Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Chub 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 Chub Lake
These are the measurements Minnesota PCA publishes for Chub 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 0.5 ft of visibility. TSI 87.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.5ft | 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. | 87 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Chub Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Chub Lake typically sits around 57°F at the surface in October. Summer average is about 75°F. Usually warmest in Jul (about 81°F) and coldest in May (about 53°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (53°F) to its warmest (81°F).
Typical surface water temperature by month, from 51 field readings (2010–2022) via the EPA Water Quality Portal. See the full Chub Lake water temperature breakdown →
Minnesota DNR's Standard Survey on August 5, 1985 caught 91.00 green sunfish per trap net at Chub Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Chub Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
1 survey on file from MN DNR Fisheries. Most recent: 1985-08-05 (Standard Survey).
1 survey on file · most recent 1985-08-05 (Standard Survey)
41 years old| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Green Sunfish | 91.00 | 0.1 lb | |
| Black Bullhead | 83.60 | 0.17 lb | |
| Common Carp | 0.60 | 3.4 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
From the 1985-08-05 survey
CARP WERE FOUND AT BELOW LOCAL MEDIAN NUMBERS. BLACK BULLHEAD AND GREEN SUNFISH WERE SAMPLED AT LEVELS MUCH ABOVE THE LOCAL MEDIANS. NO GAMEFISH WERE SAMPLED. SOUTHERN REDBELLY DACE, MIMIC SHINER FATHEAD MINNOW AND CENTRAL MUDMINNOW WERE SAMPLED BY SHORELINE SEINE.
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Chub Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — ChubFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
10 ft
Surface area
228 acres
Shoreline
3.7 mi
Littoral zone
100%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Elevation
961 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Chub Lake
Compare lakeside cabins, hotels, and vacation rentals near Chub Lake in Dakota 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 Chub Lake
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Fishing Chub Lake
Water quality readings over time
2 seasons of samples on record (2022–2023). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
EPA Impairment Status
Chub Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN19-0020-00 · Official waterbody report
Nearby Lakes in Dakota County
Frequently asked questions about Chub Lake
Where is Chub Lake?
- Chub Lake is a lake in Dakota County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Chub Lake?
- Chub Lake in Dakota County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 0.5 ft visibility. Maximum depth: 10 ft. Surface area: 228.02 acres.
Is Chub Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Chub Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
What is the water temperature of Chub Lake?
- Chub Lake typically sits around 57°F at the surface in October, from 51 EPA Water Quality Portal field readings (2010–2022). That is a typical value for the month, not a live reading.
How deep is Chub Lake?
- Chub Lake has a maximum depth of 10 feet. The lake covers 228.02 acres.
What did the DNR fisheries survey find at Chub Lake?
- Minnesota DNR's Standard Survey on August 5, 1985 caught 91.00 green sunfish per trap net at Chub Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Chub Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Chub Lake?
- Public access to Chub 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.
Explore Chub Lake across LakeQuality
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Where this data comes from
15 measurements from 1 monitoring station, 2022–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA15 samples · 2022–2024
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