Dewitt Road-Cedar Grove Lake
Sheboygan County, WisconsinView mapDirections
Wisconsin DNR publishes the water-quality measurements for Dewitt Road-Cedar Grove Lake. Here is what has been measured.
- Eutrophic
- Limited data
Dewitt Road-Cedar Grove Lake in Sheboygan County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 73.9 µg/L.
Dewitt Road-Cedar Grove Lake is a productive, nutrient-rich eutrophic lake in Sheboygan County, Wisconsin. Compared to the 5 other monitored lakes in Sheboygan County, Dewitt Road-Cedar Grove Lake ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2020-10-10. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Dewitt Road-Cedar Grove 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 Dewitt Road-Cedar Grove Lake
These are the measurements Wisconsin DNR publishes for Dewitt Road-Cedar Grove 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 73.9 µg/L. TSI 66.
| 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 | 73.9µg/L | Poor GoodFairPoor |
| 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. | 66 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Stays near Dewitt Road-Cedar Grove Lake
Compare lakeside cabins, hotels, and vacation rentals near Dewitt Road-Cedar Grove Lake in Sheboygan 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Dewitt Road-Cedar Grove Lake are listed below.
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Fishing Dewitt Road-Cedar Grove Lake
Regulated Pollution Sources Nearby
4 EPA-permitted facilities operate within about 5 miles of Dewitt Road-Cedar Grove Lake under Clean Water Act (NPDES) discharge permits. 2 facilities have a reported Clean Water Act violation in the past three years.
- Oostburg Wastewater Treatment PlantOostburg · 2.4 mi away · NPDES WI0022233Recent violation
- Cedar Grove Wastewater Trtmnt FacilCedar Grove · 3 mi away · NPDES WI0020711Recent violation
- Anatevka DairyLima, Town Of · 3.4 mi away · NPDES WI0066125
- Bemis Manufacturing CoSheboygan Falls · 4.5 mi away · NPDES WI0029521
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 Sheboygan County
Frequently asked questions about Dewitt Road-Cedar Grove Lake
Where is Dewitt Road-Cedar Grove Lake?
- Dewitt Road-Cedar Grove Lake is a lake in Sheboygan County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Dewitt Road-Cedar Grove Lake?
- Dewitt Road-Cedar Grove Lake in Sheboygan County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 73.9 µg/L.
Is Dewitt Road-Cedar Grove Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
5 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX5 samples · 2020
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)