Mead Lake Nb Test Site
Clark County, WisconsinLimited DataEutrophic
On the scoring rubric Mead Lake Nb Test 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 Test Site reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. Mead Lake Nb Test Site reaches 16 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 310 acres, Mead Lake Nb Test Site fits the Wisconsin median for monitored lakes, with partial shoreline records. Mead Lake Nb Test Site ranks 2 of 4 in Clark County — solidly in the upper half of the local distribution.
Mead Lake Nb Test 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. Walleye are documented at Mead Lake Nb Test Site, one of 5 fish species on record for the lake. A documented public access point at Mead Lake Nb Test Site makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
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 Test Site (14-day solunar calendar)
→ Is it safe to eat fish from Mead Lake Nb Test Site? (mercury & PFAS guide)
→ Mead Lake Nb Test 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 #2 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