Greenes Lake
Charlevoix County, Michigan61 acresView mapDirections
Not enough samples to grade — 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. No letter yet. Here is what we do have.
- Limited data
Greenes Lake in Charlevoix County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2 ft visibility. Phosphorus: 46 µg/L. Surface area: 60.8 acres.
- Clarity
- 2 ft
- Area
- 61 acres
- Trend
- → Stable
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Watch Greenes Lake’s letter
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Why Greenes Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Greenes Lake, 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. Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. 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.
Greenes Lake is a 61-acre lake in Charlevoix County, Michigan.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2023-09-04. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Greenes Lake
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 2 ft of visibility. Phosphorus 46 µg/L. TSI 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | Not graded |
| Phosphorus | 46 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 61 acres |
No bathymetric survey has been published for Greenes Lake, so its depth is not documented here.
Fishing Greenes Lake
Water Quality Trend: → Stable
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | → Stable | 0 µg/L/yr | 2 |
Graded lakes near Greenes Lake
Greenes Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Charlevoix County
Frequently asked questions about Greenes Lake
Where is Greenes Lake?
- Greenes Lake is a lake in Charlevoix 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 Greenes Lake?
- Greenes Lake in Charlevoix County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2 ft visibility. Phosphorus: 46 µg/L. Surface area: 60.8 acres.
Is Greenes Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
12 measurements from 1 monitoring station, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS12 samples · 2022–2023
Analytical methods
- Phosphorus by Colorimetry
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.