Smith Lake
Marinette County, Wisconsin20 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Smith Lake. Here is what has been measured.
- 11 ft max depth
- Public access
- Limited data
Smith Lake in Marinette County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 15.6 µg/L. Maximum depth: 11 ft. Surface area: 20 acres.
Smith Lake is a 20-acre lake in Marinette County, Wisconsin with a maximum depth of 11 feet. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2022-09-12. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Smith Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Smith Lake
These are the measurements Wisconsin DNR publishes for Smith Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 15.6 µg/L. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 15.6µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Answers come straight from the public measurements and survey records on this page.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2022).
Lake Details
Max depth
11 ft
Surface area
20 acres
Public access
Yes
Listed by Wisconsin DNR
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Fishing Smith Lake
Nearby Lakes in Marinette County
Frequently asked questions about Smith Lake
Where is Smith Lake?
- Smith Lake is a lake in Marinette County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Smith Lake?
- Smith Lake in Marinette County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 15.6 µg/L. Maximum depth: 11 ft. Surface area: 20 acres.
Is Smith Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Smith Lake?
- Smith Lake has a maximum depth of 11 feet. The lake covers 20 acres.
Can I fish at Smith Lake?
- Public access to Smith Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.
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3.8 mi away
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Where this data comes from
2 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX2 samples · 2022
Analytical methods
- Phosphorus by Colorimetry
- Turbidity in Water
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Fish and recreation data from Wisconsin DNR Lakes