Tan Lake
Oakland County, Michigan36 acresView mapDirections
EGLE publishes the water-quality measurements for Tan Lake. Here is what has been measured.
- Limited data
Tan Lake in Oakland County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 11 ft visibility. Surface area: 35.9 acres.
Tan Lake is a 36-acre lake in Oakland County, Michigan. Overall water quality is improving over recent sampling years. The lake supports 2 documented fish species including Brook silverside and Yellow bullhead.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2018-09-11. Methodology: how these readings are compared.
What Tan Lake is good for
From access and monitoring records, not editorial picks.
- Clear water11 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Tan 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 Tan Lake
These are the measurements EGLE publishes for Tan 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 ft. TSI 43.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 11ft | 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. | 43 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Tan Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
36 acres
No bathymetric survey has been published for Tan Lake, so its depth is not documented here.
Stays via Stay22
Stays near Tan Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Tan Lake
Water quality readings over time
2 seasons of samples on record (2018–2019). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Phosphorus
Improving-1 µg/L/yr2 years
Nearby Lakes in Oakland County
Frequently asked questions about Tan Lake
Where is Tan Lake?
- Tan 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 Tan Lake?
- Tan Lake in Oakland County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 11 ft visibility. Surface area: 35.9 acres.
Is Tan Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What fish are in Tan Lake?
- Fish species found in Tan Lake include Brook silverside, Yellow bullhead. Tan Lake is located in Oakland County, Michigan.
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Where this data comes from
18 measurements from 1 monitoring station, 2018. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS18 samples · 2018
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.