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LakeQuality

Lake Wissota

Chippewa County, Wisconsin6,148 acresView mapDirections

Wisconsin DNR publishes the water-quality measurements for Lake Wissota. Here is what has been measured.

Clarity
3.5 ft
Murkier than most
Secchi · sampled 2026
Phosphorus
76.4 µg/L
More phosphorus than most
Measured by Wisconsin DNR
Max depth
64.4 ft
Bathymetric survey
Area
6,148 acres
Surface area
Type
Eutrophic
Trophic class
  • Eutrophic
  • 2 aquatic invasives
  • 64 ft max depth
  • Public access

Lake Wissota in Chippewa County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 3.5 ft visibility. Phosphorus: 76.4 µg/L. Maximum depth: 64.4 ft. Surface area: 6148 acres.

Wisconsin DNR rates Walleye as abundant on Lake Wissota. DNR survey details →

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Lake Wissota is a 6,148-acre productive, nutrient-rich eutrophic lake in Chippewa County, Wisconsin with a maximum depth of 64 feet. Overall water quality is improving over recent sampling years. The lake supports 8 documented fish species including Musky, Panfish, and Largemouth Bass. Public access is available with 4 public boat landings. Compared to the 6 other monitored lakes in Chippewa County, Lake Wissota ranks #7 for water quality.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-25. Methodology: how these readings are compared.

At about 6,100 acres, Lake Wissota is large enough that where you stay decides which shore you see most of. It has 4 public boat landings, so a lakefront rental is not the only way to get a boat on the water. If you are planning to stay, you can search lake houses and cabins around Lake Wissota on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.

What Lake Wissota is good for

From access and monitoring records, not editorial picks.

  • Boat launch4 documented ramps
  • Fishing8 species recorded
  • Deep water64.4 ft surveyed max depth
  • Big water6,148 acres

Swimming conditions

Readings only

Bacteria tested: low

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.

Bacteria testing record
from E. coli testing · 36 samples, 3 seasons

Based on E. coli testing, Lake Wissota never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 36 samples across 3 seasons.

This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Wisconsin’s current beach and health-department advisories before swimming.

Whether Lake Wissota 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.

Compare swimming lakes near Eau Claire →

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Water quality measurements for Lake Wissota

These are the measurements Wisconsin DNR publishes for Lake Wissota, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Murky, only visible to about 3.5 ft. Phosphorus 76.4 µg/L. TSI 63.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)3.5ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus76.4µg/LPoor
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.63Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Lake Wissota

Answers come straight from the public measurements and survey records on this page.

DNR fisheries survey

Wisconsin DNR rates Walleye as abundant on Lake Wissota.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Lake Wissota’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.

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1990. 21 stations on file (most recent sample 2025).

Fish Species (DNR-rated)

Walleye(Abundant)Musky(Common)Smallmouth Bass(Common)Northern Pike(Common)Catfish(Common)Panfish(Present)Largemouth Bass(Present)Sturgeon(Present)

DNR Reports & Resources

Wisconsin DNR Fisheries scientists publish multi-year survey reports for Lake Wissota covering fish populations, stocking, water quality, and management. 1 report on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

Lake Details

Max depth

64.4 ft

Surface area

6,148 acres

Public access

Yes

Listed by Wisconsin DNR

Recreation & Access

4
Boat Landings
Yes
Public Access
  • 176th Street BridgePublic
  • 197th Street BridgePublic
  • Pumphouse RoadPublic
  • Chippewa Rod & Gun ClubSemi-private

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

Stays near Lake Wissota

Compare lakeside cabins, hotels, and vacation rentals near Lake Wissota in Chippewa 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Lake Wissota are listed below.

Top-rated places to stay near Lake Wissota

Prices for Oct 16–18, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a trip? Cabins and lodging at Lake Wissota → · more Wisconsin lake trips

Follow Lake Wissota’s readings

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Fish Species

Click a species to see every lake where it is documented.

Fishing Lake Wissota

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

Banded Mystery SnailChinese Mystery SnailCurly-Leaf PondweedEurasian Water-MilfoilRusty Crayfish

2 seasons of samples on record (2021–2022). Calling a direction takes at least 4 years of the same measurement.

  • Phosphorus

    Improving

    -2.3 µg/L/yr2 years

Reservoir Info (USACE NID)

Lake Wissota is a man-made reservoir impounded by the Wissota (completed 1917), built primarily for hydroelectric on the Chippewa River; gravity-type dam, 68 ft tall and 7,800 ft long.

Surface area
6,212 ac
Normal storage
56,000 ac-ft
Max storage
56,000 ac-ft
Drainage area
5,528 sq mi
Hazard class
High
Owner
Northern States Power Co

All listed purposes: Hydroelectric;Recreation;Flood Risk Reduction.

Source: USACE National Inventory of Dams, NID ID WI00730 · Operator website

Regulated Pollution Sources Nearby

2 EPA-permitted facilities operate within about 5 miles of Lake Wissota under Clean Water Act (NPDES) discharge permits.

  • Northern Wisconsin Center For Dev Disabled
    Chippewa Falls · 3.2 mi away · NPDES WI0039144
  • Jacob Leinenkugel Brewing Co
    Chippewa Falls · 4.4 mi away · NPDES WI0004316

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.

Nearby Lakes in Chippewa County

Frequently asked questions about Lake Wissota

Where is Lake Wissota?

Lake Wissota is a lake in Chippewa County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.

What is the water quality of Lake Wissota?

Lake Wissota in Chippewa County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 3.5 ft visibility. Phosphorus: 76.4 µg/L. Maximum depth: 64.4 ft. Surface area: 6148 acres.

Measurements on this page ↑

Is Lake Wissota safe to swim in?

Based on E. coli testing, Lake Wissota never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 36 samples across 3 seasons. That is a historical summary of past bacteria testing, not a current reading and not a swimming clearance. Bacteria levels can spike quickly after heavy rain, so whether Lake Wissota is safe to swim in today is a call for Wisconsin's water agency and the county health department; check their current beach advisories before you swim.

Swimming on this page ↑

How deep is Lake Wissota?

Lake Wissota has a maximum depth of 64.4 feet. The lake covers 6148 acres.

What fish are in Lake Wissota?

Fish species found in Lake Wissota include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye, Sturgeon, Catfish. Lake Wissota is located in Chippewa County, Wisconsin.

Fish on this page ↑

What did the DNR fisheries survey find at Lake Wissota?

Wisconsin DNR rates Walleye as abundant on Lake Wissota. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Lake Wissota’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 on this page ↑

Are there boat ramps on Lake Wissota?

Lake Wissota has 4 documented boat landings in the USGS National Boat Ramps inventory. Named access points include 176th Street Bridge, 197th Street Bridge, Pumphouse Road, Chippewa Rod & Gun Club. Public access is listed as yes.

Access on this page ↑

Can I fish at Lake Wissota?

Lake Wissota has 4 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.

Access on this page ↑

Where this data comes from

109 measurements from 5 monitoring stations, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX109 samples · 2020–2026

Analytical methods

  • Phosphorus by Colorimetry
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

Regulated discharger data from EPA ECHO (ICIS-NPDES)

Fish and recreation data from Wisconsin DNR Lakes

Named boat-access points from the USGS National Boat Ramps inventory