Moldenhauer Lake
Ozaukee County, Wisconsin3 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Moldenhauer Lake. Here is what has been measured.
- 32 ft max depth
- Limited data
Moldenhauer Lake in Ozaukee County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 12.2 µg/L. Maximum depth: 32 ft. Surface area: 3 acres.
Wisconsin DNR rates Panfish as abundant on Moldenhauer Lake. DNR survey details →
Moldenhauer Lake is a 3-acre lake in Ozaukee County, Wisconsin with a maximum depth of 32 feet. The lake supports 3 documented fish species including Panfish, Largemouth Bass, and Trout.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-08-13. Methodology: how these readings are compared.
What Moldenhauer Lake is good for
From access and monitoring records, not editorial picks.
- Fishing3 species recorded
- Deep water32 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Moldenhauer 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 Moldenhauer Lake
These are the measurements Wisconsin DNR publishes for Moldenhauer 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 12.2 µg/L. TSI 40.
| 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 | 12.2µg/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. | 40 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Moldenhauer Lake
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR rates Panfish as abundant on Moldenhauer Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Moldenhauer Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2024).
Fish Species (DNR-rated)
Lake Details
Max depth
32 ft
Surface area
3 acres
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Fish Species
Click a species to see every lake where it is documented.
Fishing Moldenhauer Lake
- → Moldenhauer Lake fishing: DNR survey catch rates, species & stocking
- → Moldenhauer Lake fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Moldenhauer Lake fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Moldenhauer Lake? (mercury & PFAS guide)
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of Moldenhauer Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 2 facilities have a reported Clean Water Act violation in the past three years.
- Saukville Village Sewer UtilitySaukville · 3.2 mi away · NPDES WI0021555MajorRecent violation
- Schreiber Foods Inc - West BendWest Bend · 4.2 mi away · NPDES WI0026751Recent violation
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 Ozaukee County
Frequently asked questions about Moldenhauer Lake
Where is Moldenhauer Lake?
- Moldenhauer Lake is a lake in Ozaukee County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Moldenhauer Lake?
- Moldenhauer Lake in Ozaukee County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 12.2 µg/L. Maximum depth: 32 ft. Surface area: 3 acres.
Is Moldenhauer Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Moldenhauer Lake?
- Moldenhauer Lake has a maximum depth of 32 feet. The lake covers 3 acres.
What fish are in Moldenhauer Lake?
- Fish species found in Moldenhauer Lake include Panfish, Largemouth Bass, Trout. Moldenhauer Lake is located in Ozaukee County, Wisconsin.
What did the DNR fisheries survey find at Moldenhauer Lake?
- Wisconsin DNR rates Panfish as abundant on Moldenhauer Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Moldenhauer Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
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Where this data comes from
1 measurement from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX1 sample · 2024
Analytical methods
- Phosphorus by Colorimetry
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Fish and recreation data from Wisconsin DNR Lakes