Otsego County, Michigan · Water Quality Report Card
Town Line Lake (Aka
Town Line Lake (Aka in Otsego County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 16.5 ft visibility.
- Clarity
- 16.5 ft
- Type
- Oligotrophic
Town Line Lake (Aka is a cold, clear oligotrophic lake in Otsego County, Michigan.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2021-09-12. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not rated for swimming — there is not enough monitoring data to judge this lake
Water Quality Grade: Not rated
Crystal clear, you can see 16.5 ft down. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 16.5 ft | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Town Line Lake (Aka
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Fishing Town Line Lake (Aka
Location
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Low nutrients, clear water, excellent for swimming
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Where this data comes from
16 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS16 samples · 2021
Monitoring station identifiers (1)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2021-09-12
Monitoring stations: 1