Woodhull Lake
Oakland County, Michigan131 acresView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Impaired · Pathogens (E. coli, fecal)
- 50 ft max depth
- Limited data
Woodhull Lake in Oakland County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14.8 ft visibility. Maximum depth: 50 ft. Surface area: 131.1 acres.
- Clarity
- 14.8 ft
- Max depth
- 50 ft
- Area
- 131 acres
- Trend
- ↑ Improving
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Watch Woodhull Lake’s letter
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Why Woodhull Lake has no grade
Woodhull Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Woodhull Lake is Not Rated — not an F. Its 14.8-foot median from 2 readings collected 2023 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by EGLE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Woodhull Lake is a 131-acre lake in Oakland County, Michigan with a maximum depth of 50 feet. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2023-06-22. Grade methodology: LakeQuality methodology.
What Woodhull Lake is good for
From access and monitoring records, not editorial picks.
- Clear water14.8 ft of visibility
- Deep water50 ft surveyed max depth
Swimming Safety
Not ratedBacteria advisory
The letter is not a swimming clearance. Woodhull Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for pathogens (E. coli, fecal). Check local advisories before you swim.
Water quality measurements for Woodhull Lake
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 14.8 ft. TSI 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14.8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 50 ft |
| Surface Area | 131 acres |
Fishing Woodhull Lake
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +1.488 m/yr | 2 |
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)
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.
Nearby Lakes in Oakland County
Frequently asked questions about Woodhull Lake
Where is Woodhull Lake?
- Woodhull Lake is a lake in Oakland County, Michigan. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Woodhull Lake?
- Woodhull Lake in Oakland County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14.8 ft visibility. Maximum depth: 50 ft. Surface area: 131.1 acres.
Is Woodhull Lake safe to swim in?
- The letter is not a swimming clearance. Woodhull Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for pathogens (E. coli, fecal). Check local advisories before you swim.
How deep is Woodhull Lake?
- Woodhull Lake has a maximum depth of 50 feet. The lake covers 131.1 acres.
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Where this data comes from
2 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS2 samples · 2023
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
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)