Mead Lake Nb Test Site
Mead Lake Nb Test 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
- 73°F
- Max depth
- 16 ft
- Area
- 310 acres
- Trend
- → Stable
- Public access
- Yes
Next lake in Clark County
Why Mead Lake Nb Test 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 Test 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 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. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Mead Lake Nb Test 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.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 67 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay 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.
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Water Temperature
Mead Lake Nb Test Site typically sits around 73°F at the surface in August. 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.
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 →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 16 ft |
| Surface Area | 310 acres |
| Public Access | Yes |
Fish Species
Click a species to see every graded 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.
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)
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.114 m/yr | 4 |
| Phosphorus | ↑ Improving | -36.5 µg/L/yr | 3 |
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
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit WI10004701 · Official waterbody report · Matched by proximity (0.43 km)
Graded lakes near Mead Lake Nb Test Site
Mead Lake Nb Test Site has no grade, but these lakes within a short drive do.
Nearby Lakes in Clark County
Frequently asked questions about Mead Lake Nb Test Site
What is the water quality grade for Mead Lake Nb Test Site?
- Mead Lake Nb Test 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 Test Site safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Mead Lake Nb Test 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 Test Site?
- Mead Lake Nb Test Site typically sits around 73°F at the surface in August, from 12 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 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.
Explore Mead Lake Nb Test Site across LakeGrade
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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 Resources
WIDNR_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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes