Woodhull Lake is a cold, clear oligotrophic lake in Oakland County, Michigan. Water quality is graded B based on 1 sampling years through 2023. Compared to the 44 other monitored lakes in Oakland County, Woodhull Lake ranks #28 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-06-22. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 14.8 ft. Trophic State Index: 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14.8 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Woodhull Lake
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Fishing Woodhull Lake
Location
County Ranking
Ranked #28 of 45 lakes in Oakland County
Nearby Lakes in Oakland County
Explore Woodhull Lake across LakeGrade
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Species activity outlook by water temperature and season
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Low nutrients, clear water, excellent for swimming
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Other Grade B Lakes in Michigan
Genesee County · Clarity: 12 ft
Genesee County · Clarity: 12 ft
Genesee County · Clarity: 10 ft
Genesee County · Clarity: 10 ft
Livingston County · Clarity: 12 ft
Livingston County · Clarity: 12 ft
Oligotrophic Lakes in Michigan
More records, surveys & data sources
EPA Impairment Status
Woodhull Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040900030103-12 · Official waterbody report · Matched by proximity (0.55 km)
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
3 EPA-permitted facilities operate within about 5 miles of Woodhull Lake under Clean Water Act (NPDES) discharge permits.
- Oakland County Sportsmens ClubClarkston · 0.9 mi away · NPDES MI0057398
- Ultramar Diamond-WaterfordWaterford · 0.9 mi away · NPDES MIG080783
- Abc Custome Chrome, Inc.Waterford · 1 mi away · NPDES MIP000100
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.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-06-22
Monitoring stations: 1