Sheas Lake
Sheas Lake in Kewaunee County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.4 ft visibility. Maximum depth: 24 ft. Surface area: 32 acres.
Wisconsin DNR lists Panfish as common on Sheas Lake. DNR survey details →
- Clarity
- 5.4 ft
- Max depth
- 24 ft
- Area
- 32 acres
- Trend
- ↑ Improving
- Public access
- Yes
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Why Sheas Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Sheas Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Sheas Lake is a 32-acre lake in Kewaunee County, Wisconsin with a maximum depth of 24 feet. Overall water quality is improving over recent sampling years. The lake supports 3 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2023-08-30. Grade methodology: LakeQuality methodology.
Watch Sheas Lake water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Sheas Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 5.4 ft. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.4 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Sheas Lake
Compare lakeside cabins, hotels, and vacation rentals near Sheas Lake in Kewaunee County, Wisconsin — 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 Sheas Lake
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Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Wisconsin DNR lists Panfish as common on Sheas Lake.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Sheas Lake — official chemistry is on file, not a letter, 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.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2023).
Fish Species (DNR-rated)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 24 ft |
| Surface Area | 32 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Shea's Lake County ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Sheas 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.
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +3.183 m/yr | 2 |
EPA Impairment Status
Sheas Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit WI10000326 · Official waterbody report · Matched by proximity (0.1 km)
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Sheas Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Deer Run Dairy LlcFranklin, Town Of · 2.4 mi away · NPDES WI0063789Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Graded lakes near Sheas Lake
Sheas Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Kewaunee County
Frequently asked questions about Sheas Lake
Where is Sheas Lake?
- Sheas Lake is a lake in Kewaunee County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Sheas Lake?
- Sheas Lake in Kewaunee County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.4 ft visibility. Maximum depth: 24 ft. Surface area: 32 acres.
Is Sheas Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Sheas Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
How deep is Sheas Lake?
- Sheas Lake has a maximum depth of 24 feet. The lake covers 32 acres.
What fish are in Sheas Lake?
- Fish species found in Sheas Lake include Panfish, Largemouth Bass, Northern Pike. Sheas Lake is located in Kewaunee County, Wisconsin.
What did the DNR fisheries survey find at Sheas Lake?
- Wisconsin DNR lists Panfish as common on Sheas Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Sheas Lake — official chemistry is on file, not a letter, 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.
Are there boat ramps on Sheas Lake?
- Sheas Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Shea's Lake County Park. Public access is listed as yes.
Explore Sheas Lake across LakeQuality
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Where this data comes from
12 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX12 samples · 2023
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory