Bahr Lake
Shawano County, Wisconsin7 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Bahr Lake. Here is what has been measured.
- Mesotrophic
- Impaired · Cause unknown
- 44 ft max depth
- Limited data
Bahr Lake in Shawano County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 6.8 ft visibility. Phosphorus: 20.1 µg/L. Maximum depth: 44 ft. Surface area: 7 acres.
Wisconsin DNR lists Largemouth Bass as common on Bahr Lake. DNR survey details →
Bahr Lake is a 7-acre mesotrophic lake in Shawano County, Wisconsin with a maximum depth of 44 feet. The lake supports 4 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Compared to the 20 other monitored lakes in Shawano County, Bahr Lake ranks #12 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2020-09-02. Methodology: how these readings are compared.
What Bahr Lake is good for
From access and monitoring records, not editorial picks.
- Fishing4 species recorded
- Deep water44 ft surveyed max depth
Swimming conditions
Readings onlyLimited 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. Bahr Lake is listed impaired under Clean Water Act §303(d) (IR 5) for cause unknown. Check local advisories before you swim.
Whether Bahr Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Bahr Lake
These are the measurements Wisconsin DNR publishes for Bahr 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 6.8 ft. Phosphorus 20.1 µg/L. TSI 49.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 20.1µg/L | Good GoodFairPoor |
| 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. | 49 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Bahr Lake
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR lists Largemouth Bass as common on Bahr Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Bahr Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2020).
Fish Species (DNR-rated)
Lake Details
Max depth
44 ft
Surface area
7 acres
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Stays near Bahr Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Bahr Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
EPA Impairment Status
Bahr 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.
Source: EPA ATTAINS assessment unit WI10026371 · Official waterbody report
Nearby Lakes in Shawano County
Frequently asked questions about Bahr Lake
Where is Bahr Lake?
- Bahr Lake is a lake in Shawano County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Bahr Lake?
- Bahr Lake in Shawano County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 6.8 ft visibility. Phosphorus: 20.1 µg/L. Maximum depth: 44 ft. Surface area: 7 acres.
Is Bahr Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Bahr Lake is listed impaired under Clean Water Act §303(d) (IR 5) for cause unknown. Check local advisories before you swim.
How deep is Bahr Lake?
- Bahr Lake has a maximum depth of 44 feet. The lake covers 7 acres.
What fish are in Bahr Lake?
- Fish species found in Bahr Lake include Panfish, Largemouth Bass, Northern Pike, Trout. Bahr Lake is located in Shawano County, Wisconsin.
What did the DNR fisheries survey find at Bahr Lake?
- Wisconsin DNR lists Largemouth Bass as common on Bahr Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Bahr Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
Explore Bahr Lake across LakeQuality
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Where this data comes from
7 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX7 samples · 2020
Analytical methods
- Phosphorus by Colorimetry
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
Fish and recreation data from Wisconsin DNR Lakes