Green Oak Lake
Livingston County, Michigan150 acresView mapDirections
EGLE publishes the water-quality measurements for Green Oak Lake. Here is what has been measured.
- 42 ft max depth
- Limited data
Green Oak Lake in Livingston County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 13 ft visibility. Maximum depth: 42 ft. Surface area: 150.3 acres.
Green Oak Lake is a 150-acre lake in Livingston County, Michigan with a maximum depth of 42 feet. Overall water quality is improving over recent sampling years. The lake supports 1 documented fish species including Lake herring.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2019-09-06. Methodology: how these readings are compared.
What Green Oak Lake is good for
From access and monitoring records, not editorial picks.
- Clear water13 ft of visibility
- Deep water42 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Green Oak Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Green Oak Lake
These are the measurements EGLE publishes for Green Oak Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 13 ft. TSI 40.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 13ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| 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. | 40 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Green Oak Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
42 ft
Surface area
150 acres
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Fish Species
Click a species to see every lake where it is documented.
Fishing Green Oak Lake
Water Quality Trend: Improving
Based on 4 years of monitoring (2016–2019).
Water clarity
Improving4 years
Nearby Lakes in Livingston County
Frequently asked questions about Green Oak Lake
Where is Green Oak Lake?
- Green Oak Lake is a lake in Livingston County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Green Oak Lake?
- Green Oak Lake in Livingston County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 13 ft visibility. Maximum depth: 42 ft. Surface area: 150.3 acres.
Is Green Oak Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Green Oak Lake?
- Green Oak Lake has a maximum depth of 42 feet. The lake covers 150.3 acres.
What fish are in Green Oak Lake?
- Fish species found in Green Oak Lake include Lake herring. Green Oak Lake is located in Livingston County, Michigan.
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Where this data comes from
41 measurements from 1 monitoring station, 2016–2019. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS41 samples · 2016–2019
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.