Mack Lake
Oscoda County, Michigan161 acresView mapDirections
EGLE publishes the water-quality measurements for Mack Lake. Here is what has been measured.
- Limited data
Mack Lake in Oscoda County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 5.5 ft visibility. Surface area: 160.9 acres.
Mack Lake is a 161-acre lake in Oscoda County, Michigan. Overall water quality is declining over recent sampling years. The lake supports 6 documented fish species including Black bullhead, Bluntnose minnow, and Finescale dace.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2019-08-22. Methodology: how these readings are compared.
What Mack Lake is good for
From access and monitoring records, not editorial picks.
- Fishing6 species recorded
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mack 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 Mack Lake
These are the measurements EGLE publishes for Mack Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5.5 ft. TSI 53.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.5ft | 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. | 53 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Mack Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
161 acres
The available depth estimate for Mack Lake is shallower than its measured water clarity, which cannot be right, so no depth is shown.
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Stays near Mack Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Mack Lake
Water quality readings over time
2 seasons of samples on record (2019–2022). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Worsening+2 µg/L/yr2 years
Nearby Lakes in Oscoda County
Frequently asked questions about Mack Lake
Where is Mack Lake?
- Mack Lake is a lake in Oscoda County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Mack Lake?
- Mack Lake in Oscoda County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 5.5 ft visibility. Surface area: 160.9 acres.
Is Mack Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Mack Lake?
- The available depth estimate for Mack Lake is shallower than its measured water clarity, which cannot be right, so no depth is shown. The lake covers 160.9 acres.
What fish are in Mack Lake?
- Fish species found in Mack Lake include Black bullhead, Bluntnose minnow, Finescale dace, Golden shiner, Western banded killifish, Yellow perch. Mack Lake is located in Oscoda County, Michigan.
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Where this data comes from
8 measurements from 1 monitoring station, 2019. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS8 samples · 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.