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.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.6 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 50 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 16 ft |
| Surface Area | 310 acres |
| Public Access | Yes |
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
Water Quality Trend: → Stable
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.125 m/yr | 5 |
| Phosphorus | ↑ Improving | -36.5 µg/L/yr | 3 |
Recreation & Access
Location
County Ranking
Ranked #3 of 4 lakes in Clark County
Nearby Lakes in Clark County
More Wisconsin Lake Rankings
Other Grade D Lakes in Wisconsin
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).
Fish Species (DNR-rated)
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