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LakeQuality

Mead Lake Nb Control Site

NR
Not yet rated
2 ft clear · Eutrophic · 310 acres
Limited DataEutrophic

Mead Lake Nb Control Site in Clark County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2 ft visibility. Maximum depth: 16 ft. Surface area: 310 acres.

Clarity
2 ft
Typical in August
74°F
Max depth
16 ft
Area
310 acres
Trend
Stable
Public access
Yes

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DMead Lake2 ft clear · Clark CountyView →
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Why Mead Lake Nb Control Site has no grade

We grade a lake only when its monitoring record clears the evidence bar: 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 Mead Lake Nb Control Site, 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.

Mead Lake Nb Control 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. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Eau Claire

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Water quality measurements for Mead Lake Nb Control Site

These readings exist but do not meet the evidence bar for an A–F grade — see why.

Very murky, less than 2 ft of visibility. Trophic State Index: 67.

MetricValueGrade
Water Clarity (Secchi Depth)2 ftNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)67Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Mead Lake Nb Control Site

Compare lakeside cabins, hotels, and vacation rentals near Mead Lake Nb Control 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 Control Site

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 whole trip? See where to stay at Wisconsin’s top lakes →

Water Temperature

Mead Lake Nb Control Site typically sits around 74°F at the surface in August. Summer average is about 74°F. Usually warmest in Jul (about 74°F) and coldest in Sep (about 60°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
Jun
Jul
74°
Aug
74°
Sep
60°
Oct
Nov
Dec

Typical surface water temperature by month, from 10 field readings (20252025) via the EPA Water Quality Portal.

Lake Details

CharacteristicValue
Maximum Depth16 ft
Surface Area310 acres
Public AccessYes

Lake Size & Watershed

Watershed (drainage) area
100 sq mi
Shoreline
5.2 mi
Elevation
1,033 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Fish Species

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

Fishing Mead Lake Nb Control 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

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)

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.114 m/yr4
Phosphorus Improving-36.5 µg/L/yr3
See year-by-year chart →

EPA Impairment Status

Mead Lake Nb Control 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

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

Source: EPA ATTAINS assessment unit WI10004701 · Official waterbody report · Matched by proximity (0.67 km)

Regulated Pollution Sources Nearby

1 EPA-permitted facility operate within about 5 miles of Mead Lake Nb Control Site under Clean Water Act (NPDES) discharge permits.

  • North Hendren Coop Dairy
    Hendren · 2.5 mi away · NPDES WI0053741

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 Mead Lake Nb Control Site

Mead Lake Nb Control Site has no grade, but these lakes within a short drive do.

Nearby Lakes in Clark County

Frequently asked questions about Mead Lake Nb Control Site

What is the water quality grade for Mead Lake Nb Control Site?

Mead Lake Nb Control Site in Clark County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2 ft visibility. Maximum depth: 16 ft. Surface area: 310 acres.

Is Mead Lake Nb Control Site safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Mead Lake Nb Control Site is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

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

Mead Lake Nb Control Site typically sits around 74°F at the surface in August, from 10 EPA Water Quality Portal field readings (2025–2025). That is a typical value for the month, not a live reading.

How deep is Mead Lake Nb Control Site?

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

What fish are in Mead Lake Nb Control Site?

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

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)

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