Andrus Lake
Cass County, Minnesota56 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Andrus Lake. Here is what has been measured.
- 55 ft max depth
- Limited data
Andrus Lake in Cass County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 12 ft visibility. Maximum depth: 55 ft. Surface area: 55.81 acres.
Minnesota DNR's Standard Survey on June 22, 1981 caught 3.33 northern pike per gill net at Andrus Lake. DNR survey details →
Andrus Lake is a 56-acre lake in Cass County, Minnesota with a maximum depth of 55 feet (16-foot average). 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 2020-09-02. Methodology: how these readings are compared.
What Andrus Lake is good for
From access and monitoring records, not editorial picks.
- Clear water12 ft of visibility
- Deep water55 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Andrus 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 Andrus Lake
These are the measurements Minnesota PCA publishes for Andrus Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 12 ft. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 12ft | 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. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Andrus Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on June 22, 1981 caught 3.33 northern pike per gill net at Andrus Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Andrus Lake’s water-quality measurements separately. 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: 1981-06-22 (Standard Survey).
1 survey on file · most recent 1981-06-22 (Standard Survey)
45 years old| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Bluegill | 71.67 | 0.13 lb | |
| Yellow Perch | 20.00 | 0.14 lb | |
| Yellow Bullhead | 15.66 | 0.41 lb | |
| Northern Pike | 3.33 | 5.8 lb | |
| Pumpkinseed | 2.33 | 0.22 lb | |
| Largemouth Bass | 1.50 | 0.4 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 1981-06-22 survey
Present Fishing Status: Test netting indicates a good northern pike population. Fish are large with the average size being over five pounds. An adequate population of yellow perch, largemouth bass and black crappie are preset. A stunted population of bluegills was evident.Additional Field Notes: One pair of loons…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Andrus Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — AndrusFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
55 ft
Average depth
16 ft
Surface area
56 acres
Shoreline
1.7 mi
Littoral zone
45%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
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Fishing Andrus Lake
Nearby Lakes in Cass County
Frequently asked questions about Andrus Lake
Where is Andrus Lake?
- Andrus Lake is a lake in Cass County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Andrus Lake?
- Andrus Lake in Cass County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 12 ft visibility. Maximum depth: 55 ft. Surface area: 55.81 acres.
Is Andrus Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Andrus Lake?
- Andrus Lake has a maximum depth of 55 feet and an average depth of 16 feet. The lake covers 55.81 acres.
What did the DNR fisheries survey find at Andrus Lake?
- Minnesota DNR's Standard Survey on June 22, 1981 caught 3.33 northern pike per gill net at Andrus Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Andrus Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Andrus Lake?
- Public access to Andrus 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.
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Where this data comes from
6 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA6 samples · 2020
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
Lake details from Minnesota DNR LakeFinder