Green Lake
Oakland County, Michigan163 acresView mapDirections
EGLE publishes the water-quality measurements for Green Lake. Here is what has been measured.
- 72 ft max depth
- Limited data
Green Lake in Oakland County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 11.8 ft visibility. Phosphorus: 12 µg/L. Maximum depth: 72 ft. Surface area: 162.5 acres.
Green Lake is a 163-acre lake in Oakland County, Michigan with a maximum depth of 72 feet. Water clarity 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 2018-09-22. Methodology: how these readings are compared.
What Green Lake is good for
From access and monitoring records, not editorial picks.
- Clear water11.8 ft of visibility
- Deep water72 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 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 Lake
These are the measurements EGLE publishes for Green 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 11.8 ft. Phosphorus 12 µg/L. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 11.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 12µg/L | Measured, not scored 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. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Green Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
72 ft
Surface area
163 acres
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Stays near Green Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Green Lake
Water Quality Trend: Stable
Based on 6 years of monitoring (2016–2023).
Water clarity
Improving3 years
Phosphorus
Worsening+0.98 µg/L/yr6 years
Nearby Lakes in Oakland County
Frequently asked questions about Green Lake
Where is Green Lake?
- Green Lake is a lake in Oakland County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Green Lake?
- Green Lake in Oakland County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 11.8 ft visibility. Phosphorus: 12 µg/L. Maximum depth: 72 ft. Surface area: 162.5 acres.
Is Green Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Green Lake?
- Green Lake has a maximum depth of 72 feet. The lake covers 162.5 acres.
What fish are in Green Lake?
- Fish species found in Green Lake include Lake herring. Green Lake is located in Oakland County, Michigan.
Explore Green Lake across LakeQuality
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Where this data comes from
10 measurements from 1 monitoring station, 2018. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS10 samples · 2018
Analytical methods
- Phosphorus by Colorimetry
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.