Oneida Lake
Livingston County, Michigan46 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)
- 33 ft max depth
- Limited data
Oneida Lake in Livingston County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8 ft visibility. Maximum depth: 33 ft. Surface area: 45.6 acres.
- Clarity
- 8 ft
- Max depth
- 33 ft
- Area
- 46 acres
- Trend
- → Stable
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Stays near Oneida Lake
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Watch Oneida Lake’s letter
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Free interactive depth-contour map of Oneida Lake, reaching a maximum surveyed depth of 33 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Why Oneida Lake has no grade
Oneida 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, Oneida Lake is Not Rated — not an F. Its 8-foot median from 43 readings collected 2019–2022 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.
Oneida Lake is a 46-acre lake in Livingston County, Michigan with a maximum depth of 33 feet.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-16. Grade methodology: LakeQuality methodology.
What Oneida Lake is good for
From access and monitoring records, not editorial picks.
- Deep water33 ft surveyed max depth
Swimming Safety
Not ratedBacteria advisory
The letter is not a swimming clearance. Oneida Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pathogens (E. coli, fecal). Check local advisories before you swim.
Water quality measurements for Oneida Lake
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 8 ft. TSI 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 33 ft |
| Surface Area | 46 acres |
Fishing Oneida Lake
Water Quality Trend: → Stable
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.008 m/yr | 4 |
| Phosphorus | → Stable | -0.29 µg/L/yr | 4 |
| Chlorophyll-a | → Stable | 0 µg/L/yr | 3 |
EPA Impairment Status
Oneida Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040900050307-09 · Official waterbody report · Matched by proximity (1.94 km)
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Oneida Lake under Clean Water Act (NPDES) discharge permits.
- Mdc-Camp BrightonPinckney · 3.3 mi away · NPDES MIG960009
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.
Graded lakes near Oneida Lake
Oneida Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Livingston County
Frequently asked questions about Oneida Lake
Where is Oneida Lake?
- Oneida Lake is a lake in Livingston County, Michigan. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Oneida Lake?
- Oneida Lake in Livingston County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8 ft visibility. Maximum depth: 33 ft. Surface area: 45.6 acres.
Is Oneida Lake safe to swim in?
- The letter is not a swimming clearance. Oneida Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pathogens (E. coli, fecal). Check local advisories before you swim.
How deep is Oneida Lake?
- Oneida Lake has a maximum depth of 33 feet. The lake covers 45.6 acres.
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Where this data comes from
43 measurements from 1 monitoring station, 2019–2022. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS43 samples · 2019–2022
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)