Silver Lake
Manitowoc County, WisconsinView mapDirections
No nutrient or algae sampling on record from Wisconsin DNR for this lake.
- 19 ft max depth
- Public access
- Limited data
Silver Lake in Manitowoc County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported.
Silver Lake is a lake in Manitowoc County, Wisconsin with an estimated average depth of about 19 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-01-28. 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 Silver 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 Silver Lake
These are the measurements Wisconsin DNR publishes for Silver 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.
Ask about Silver Lake
Answers come straight from the public measurements and survey records on this page.
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Silver Lake covering fish populations, stocking, water quality, and management. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2023Silver Lake comprehensive summary survey, 2023Comprehensive Survey · WI DNR · 2023 (PDF)
- 2015Silver Lake comprehensive survey 2015Comprehensive Survey · WI DNR · 2015 (PDF)
Lake Details
Max depth
~19 ft est.
Public access
Yes
Listed by Wisconsin DNR
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Wisconsin has not published bathymetry for Silver Lake.
Lake Size & Watershed
Watershed (drainage) area
17 sq mi
HydroLAKES / HydroSHEDS
Surface area
59 acres
HydroLAKES / HydroSHEDS
Shoreline
1.8 mi
HydroLAKES / HydroSHEDS
Elevation
715 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Stays via Stay22
Stays near Silver Lake
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Fishing Silver Lake
Water Quality Trend: Improving
Based on 7 years of monitoring (2020–2026).
Water clarity
Stable6 years
Phosphorus
Improving-8.64 µg/L/yr7 years
Regulated Pollution Sources Nearby
3 EPA-permitted facilities operate within about 5 miles of Silver Lake under Clean Water Act (NPDES) discharge permits. 2 facilities have a reported Clean Water Act violation in the past three years.
- Holy Family Convent Wastewater Treatment FacManitowoc Rapids · 0.1 mi away · NPDES WI0028142Recent violation
- Twin Cities Vue Dairy LlcManitowoc Rapids, Town Of · 4.8 mi away · NPDES WI0066338Recent violation
- Parker Hannifin CorpManitowoc · 1.2 mi away · NPDES WI0049239
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Manitowoc County
Frequently asked questions about Silver Lake
Where is Silver Lake?
- Silver Lake is a lake in Manitowoc County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Silver Lake?
- Silver Lake in Manitowoc County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported.
Is Silver Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Silver Lake?
- No published bathymetric survey covers Silver Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 19 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Can I fish at Silver Lake?
- Public access to Silver 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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Where this data comes from
2 measurements from 2 monitoring stations, 2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX2 samples · 2026
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (2)
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)