Two Lake
Lake County, Minnesota516 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Two Lake. Here is what has been measured.
- Impaired · Mercury
- 35 ft max depth
- Limited data
Two Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 7.5 ft visibility. Maximum depth: 35 ft. Surface area: 516.11 acres.
Minnesota DNR's Standard Survey on June 6, 2016 caught 3.44 walleye per gill net at Two Lake. Length samples in the latest survey that recorded them ran 7–27 inches. DNR survey details →
Two Lake is a 516-acre lake in Lake County, Minnesota with a maximum depth of 35 feet. Overall water quality is improving over recent sampling years. The lake supports 8 documented fish species including bluegill, cisco species, and lake whitefish. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-03. Methodology: how these readings are compared.
What Two Lake is good for
From access and monitoring records, not editorial picks.
- Fishing8 species recorded
- Deep water35 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Two Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Two 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 Two Lake
These are the measurements Minnesota PCA publishes for Two Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 7.5 ft. TSI 48.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 7.5ft | 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. | 48 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Two Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on June 6, 2016 caught 3.44 walleye per gill net at Two Lake. Length samples in the latest survey that recorded them ran 7–27 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Two Lake’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
5 surveys on file from MN DNR Fisheries. Most recent: 2025-08-01 (Targeted Survey).
5 surveys on file · most recent 2025-08-01 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Tullibee (Cisco) | 6.03 | 5–12 in 1996-06-17 | 0.37 lb |
| White Sucker | 5.93 | 6–21 in 2016-06-06 | 1.85 lb |
| Walleye | 5.92 | 7–27 in 2016-06-06 | 1.02 lb |
| Northern Pike | 5.15 | 13–36 in 2016-06-06 | 2.39 lb |
| Rock Bass | 0.89 | 5–8 in 2016-06-06 | 0.27 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.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Tullibee (Cisco)
White Sucker
Walleye
Northern Pike
From the 2025-08-01 survey
Temperature and dissolved oxygen (DO) measurements were collected from the deepest basin in Lake Two on August 1st, 2025, to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Lake Whitefish, the most sensitive coldwater species present in this lake (Cisco, also known…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Two Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — TwoFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
35 ft
Surface area
516 acres
Shoreline
16.2 mi
Littoral zone
31%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
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Stays near Two Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Two Lake
Water Quality Trend: Improving
Based on 5 years of monitoring (2020–2025).
Water clarity
Improving5 years
EPA Impairment Status
Two 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: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN38-0608-00 · Official waterbody report
Nearby Lakes in Lake County
Frequently asked questions about Two Lake
Where is Two Lake?
- Two Lake is a lake in Lake County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Two Lake?
- Two Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 7.5 ft visibility. Maximum depth: 35 ft. Surface area: 516.11 acres.
Is Two Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Two Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Two Lake?
- Two Lake has a maximum depth of 35 feet. The lake covers 516.11 acres.
What fish are in Two Lake?
- Fish species found in Two Lake include bluegill, cisco species, lake whitefish, northern pike, rock bass, smallmouth bass, walleye, white sucker. Two Lake is located in Lake County, Minnesota.
What did the DNR fisheries survey find at Two Lake?
- Minnesota DNR's Standard Survey on June 6, 2016 caught 3.44 walleye per gill net at Two Lake. Length samples in the latest survey that recorded them ran 7–27 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Two Lake’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Two Lake?
- Public access to Two 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 Two Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in Lake County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Minnesota's cleanest lakes, ranked on agency measurements
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Other Lakes in Minnesota
Mesotrophic Lakes in Minnesota
Where this data comes from
8 measurements from 5 monitoring stations, 2021–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA8 samples · 2021–2025
Analytical methods
- Field measurement/observation, generic method
Monitoring station identifiers (5)
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 details from Minnesota DNR LakeFinder