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LakeQuality

Mead Lake Nb Test Site

Clark County, Wisconsin310 acresView mapDirections

Wisconsin DNR publishes the water-quality measurements for Mead Lake Nb Test Site. Here is what has been measured.

Clarity
2 ft
Murkier than most
Secchi · sampled 2025
Water temp
~61°F
Typical for Sep · EPA WQP
Max depth
16 ft
Bathymetric survey
Area
310 acres
Surface area
Trend
Stable
5 years of samples
  • Impaired · Nutrients (phosphorus, nitrogen)
  • 2 aquatic invasives
  • 16 ft max depth
  • Public access
  • Limited data

Mead Lake Nb Test Site in Clark County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 2 ft visibility. Maximum depth: 16 ft. Surface area: 310 acres.

Wisconsin DNR rates Largemouth Bass as abundant on Mead Lake Nb Test Site. DNR survey details →

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Mead Lake Nb Test Site is a 310-acre lake in Clark County, Wisconsin with a maximum depth of 16 feet. Water clarity is declining over recent sampling years. The lake supports 5 documented fish species including Musky, Panfish, and Largemouth Bass. Public access is available.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-09-28. Methodology: how these readings are compared.

Mead Lake Nb Test Site covers about 310 acres in Clark County. For a place on the water, look through cabin and lake-house rentals near Mead Lake Nb Test Site on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.

What Mead Lake Nb Test Site is good for

From access and monitoring records, not editorial picks.

  • Fishing5 species recorded

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Mead Lake Nb Test Site is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.

Whether Mead Lake Nb Test Site 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.

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Water quality measurements for Mead Lake Nb Test Site

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

Very murky, less than 2 ft of visibility. TSI 67.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2ftMeasured, not scored

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

Total phosphorusNo 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.67Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Mead Lake Nb Test Site

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

Water Temperature

Mead Lake Nb Test Site typically sits around 61°F at the surface in September. Summer average is about 72°F. Usually warmest in Jul (about 76°F) and coldest in Sep (about 61°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
67°
Jun
76°
Jul
73°
Aug
61°
Sep
Oct
Nov
Dec

Column height runs from this lake’s coldest month (61°F) to its warmest (76°F).

Typical surface water temperature by month, from 12 field readings (2025–2025) via the EPA Water Quality Portal. See the full Mead Lake Nb Test Site water temperature breakdown →

DNR fisheries survey

Wisconsin DNR rates Largemouth Bass as abundant on Mead Lake Nb Test Site.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Mead Lake Nb Test Site’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is stable. 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 1996. 6 stations on file (most recent sample 2025).

DNR Assessment
Fair · Reservoir lake
Trophic State Index 68 (eutrophic) · 5-year average

Fish Species (DNR-rated)

Largemouth Bass(Abundant)Panfish(Common)Walleye(Common)Musky(Present)Smallmouth Bass(Present)

Lake Details

Max depth

16 ft

Surface area

310 acres

Public access

Yes

Listed by Wisconsin DNR

Stays via Stay22

Stays near Mead Lake Nb Test Site

Compare lakeside cabins, hotels, and vacation rentals near Mead Lake Nb Test Site in Clark 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 Mead Lake Nb Test Site

Prices for Oct 9–11, 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.

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Fish Species

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

Fishing Mead Lake Nb Test Site

Invasive & Introduced Species

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

Curly-Leaf PondweedPurple Loosestrife

Based on 5 years of monitoring (2021–2025).

  • Water clarity

    Worsening

    4 years

  • Phosphorus

    Improving

    -36.5 µg/L/yr3 years

See year-by-year chart →

EPA Impairment Status

Mead Lake Nb Test Site is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Nutrients (phosphorus, nitrogen)Turbidity

Designated uses not supporting: Aquatic life, Recreation.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit WI10004701 · Official waterbody report

Nearby Lakes in Clark County

Frequently asked questions about Mead Lake Nb Test Site

Where is Mead Lake Nb Test Site?

Mead Lake Nb Test Site is a lake in Clark County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.

What is the water quality of Mead Lake Nb Test Site?

Mead Lake Nb Test Site in Clark County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 2 ft visibility. Maximum depth: 16 ft. Surface area: 310 acres.

Measurements on this page ↑

Is Mead Lake Nb Test Site safe to swim in?

Nutrient and algae readings are not a swimming clearance. Mead Lake Nb Test Site is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.

Swimming on this page ↑

What is the water temperature of Mead Lake Nb Test Site?

Mead Lake Nb Test Site typically sits around 61°F at the surface in September, from 12 EPA Water Quality Portal field readings (2025–2025). That is a typical value for the month, not a live reading.

Temp on this page ↑

How deep is Mead Lake Nb Test Site?

Mead Lake Nb Test Site has a maximum depth of 16 feet. The lake covers 310 acres.

What fish are in Mead Lake Nb Test Site?

Fish species found in Mead Lake Nb Test Site include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Walleye. Mead Lake Nb Test Site is located in Clark County, Wisconsin.

Fish on this page ↑

What did the DNR fisheries survey find at Mead Lake Nb Test Site?

Wisconsin DNR rates Largemouth Bass as abundant on Mead Lake Nb Test Site. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Mead Lake Nb Test Site’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.

DNR on this page ↑

Can I fish at Mead Lake Nb Test Site?

Public access to Mead Lake Nb Test Site is listed as yes on the lake record. 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.

Where this data comes from

10 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX10 samples · 2025
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