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LakeQuality
D

Mead Lake Nb Control Site

Clark County, WisconsinLimited DataEutrophic

On the scoring rubric Mead Lake Nb Control Site grades a D: clarity at 6.6 ft and phosphorus readings still being added keep it in the lower bracket for Clark County. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

At a TSI of 50, Mead Lake Nb Control Site reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. A maximum depth of 16 ft puts Mead Lake Nb Control Site in the middle of Wisconsin's depth distribution. At 310 acres, Mead Lake Nb Control Site fits the Wisconsin median for monitored lakes, with partial shoreline records. Mead Lake Nb Control Site sits at rank 3 of 4 in Clark County, in the lower half of the local distribution.

Mead Lake Nb Control Site has at least one documented invasive species (Curly-Leaf Pondweed), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. The fishery includes walleye alongside the lake's other 5 documented species — a notable draw for Wisconsin anglers. Public access is available — the lake is on the Wisconsin DNR public-access list. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-09-28. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 6.6 ft. Trophic State Index: 50.

MetricValueGrade
Water Clarity (Secchi Depth)6.6 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)50Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth16 ft
Surface Area310 acres
Public AccessYes

Fish Species

Click a species to see all Wisconsin and Minnesota lakes where it is found.

→ Best fishing times for Mead Lake Nb Control Site (14-day solunar calendar)

→ Is it safe to eat fish from Mead Lake Nb Control Site? (mercury & PFAS guide)

Mead Lake Nb Control Site fishing regulations (limits, seasons, special rules)

Invasive Species

Curly-Leaf PondweedPurple Loosestrife

Water Quality Trend: Stable

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.125 m/yr5
Phosphorus Improving-36.5 µg/L/yr3

Recreation & Access

2
Boat Landings
Yes
Public Access

Location

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County Ranking

Ranked #3 of 4 lakes in Clark County

Nearby Lakes in Clark County

Eutrophic Lakes in Wisconsin

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)

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2025-09-28

Monitoring stations: 1