Dewitt Road-Cedar Grove Lake
Dewitt Road-Cedar Grove Lake in Sheboygan County, Wisconsin has a water quality grade of D (Nutrient-rich). Phosphorus: 73.9 µg/L.
- Mean depth
- ~276 ft est.
- Type
- Eutrophic
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Dewitt Road-Cedar Grove Lake →
Next lake in Sheboygan County
Dewitt Road-Cedar Grove Lake is a productive, nutrient-rich eutrophic lake in Sheboygan County, Wisconsin with an estimated average depth of about 276 feet. Water quality is graded D based on 1 sampling years through 2020. 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. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum
Water Quality Grade: D (Nutrient-rich)
No clarity data. Phosphorus level: 73.9 µg/L. Trophic State Index: 66.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 73.9 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 66 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay 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 grade measures nutrients and algae, not lodging — cabins and rentals around Dewitt Road-Cedar Grove Lake are listed below.
Top-rated places to stay near Dewitt Road-Cedar Grove Lake
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Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~276 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Wisconsin has not published bathymetry for Dewitt Road-Cedar Grove Lake.
Lake Size & Watershed
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.
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.
County Ranking
Ranked #6 of 6 lakes in Sheboygan County
Nearby Lakes With Higher Grades
Dewitt Road-Cedar Grove Lake holds Grade D. 3 nearby lakes hold higher nutrient-and-algae grades — useful for a swim day, not a reason to skip lodging here.
Nearby Lakes in Sheboygan County
Frequently asked questions about Dewitt Road-Cedar Grove Lake
What is the water quality grade for Dewitt Road-Cedar Grove Lake?
- Dewitt Road-Cedar Grove Lake in Sheboygan County, Wisconsin has a water quality grade of D (Nutrient-rich). Phosphorus: 73.9 µg/L.
Is Dewitt Road-Cedar Grove Lake safe to swim in?
- Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Dewitt Road-Cedar Grove Lake has a water quality grade of D (Nutrient-rich). Always check local health department advisories before swimming.
How deep is Dewitt Road-Cedar Grove Lake?
- No published bathymetric survey covers Dewitt Road-Cedar Grove Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 276 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
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High nutrients, frequent algae, reduced clarity
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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)
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)