Town Line Lake
Otsego County, Michigan31 acresView mapDirections
EGLE publishes the water-quality measurements for Town Line Lake. Here is what has been measured.
- 44 ft max depth
- Public access
- Limited data
Town Line Lake in Otsego County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 18 ft visibility. Maximum depth: 44 ft. Surface area: 31.2 acres.
Free interactive depth-contour map of Town Line Lake, reaching a maximum surveyed depth of 44 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Town Line Lake is a 31-acre lake in Otsego County, Michigan with a maximum depth of 44 feet. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2021-09-12. Methodology: how these readings are compared.
What Town Line Lake is good for
From access and monitoring records, not editorial picks.
- Clear water18 ft of visibility
- Deep water44 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 Town Line 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 Town Line Lake
These are the measurements EGLE publishes for Town Line Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 18 ft down. TSI 35.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 18ft | 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. | 35 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Town Line Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
44 ft
Surface area
31 acres
Public access
Yes
Listed by EGLE
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Stays near Town Line Lake
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Fishing Town Line Lake
Water Quality Trend: Stable
Based on 4 years of monitoring (2017–2021).
Water clarity
Stable4 years
Phosphorus
Stable0 µg/L/yr3 years
Nearby Lakes in Otsego County
Frequently asked questions about Town Line Lake
Where is Town Line Lake?
- Town Line Lake is a lake in Otsego County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Town Line Lake?
- Town Line Lake in Otsego County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 18 ft visibility. Maximum depth: 44 ft. Surface area: 31.2 acres.
Is Town Line Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Town Line Lake?
- Town Line Lake has a maximum depth of 44 feet. The lake covers 31.2 acres.
Can I fish at Town Line Lake?
- Public access to Town Line Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
54 measurements from 1 monitoring station, 2017–2021. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS54 samples · 2017–2021
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.