Lake George; Central Deep Basin; Lincoln Township is a mesotrophic lake in Clare County, Michigan. Water quality is graded B based on 1 sampling years through 2023. Overall water quality is declining over recent sampling years. The lake supports 8 documented fish species including Bluegill, Bluntnose minnow, and Iowa darter. Public access is available. Compared to the 11 other monitored lakes in Clare County, Lake George; Central Deep Basin; Lincoln Township ranks #10 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-09-10. Grade methodology: LakeGrade methodology.
Watch Lake George; Central Deep Basin; Lincoln Township water quality
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
No clarity data. Chlorophyll-a: 5.6 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 5.6 µg/L | B |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lake George; Central Deep Basin; Lincoln Township
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Top-rated places to stay near Lake George; Central Deep Basin; Lincoln Township
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Lake George; Central Deep Basin; Lincoln Township
- → Lake George; Central Deep Basin; Lincoln Township fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Lake George; Central Deep Basin; Lincoln Township fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Lake George; Central Deep Basin; Lincoln Township? (mercury & PFAS guide)
Water Quality Trend: ↓ Declining
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Chlorophyll-a | ↓ Declining | +4.65 µg/L/yr | 3 |
Water Temperature
Lake George; Central Deep Basin; Lincoln Township averages about 79°F at the surface in summer, usually warmest in Aug (about 81°F) and coldest in Mar (about 36°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 184 field readings (2016–2018) via the EPA Water Quality Portal. See the full Lake George; Central Deep Basin; Lincoln Township water temperature breakdown →
Location
County Ranking
Ranked #10 of 12 lakes in Clare County
Cleaner Lakes Within 30 Miles
Lake George; Central Deep Basin; Lincoln Township holds Grade B. One nearby lake has a higher grade.
Nearby Lakes in Clare County
Explore Lake George; Central Deep Basin; Lincoln Township across LakeGrade
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Clare County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
Moderate nutrients, good water quality
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Grade B Lakes in Michigan
Mesotrophic Lakes in Michigan
More records, surveys & data sources
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-09-10
Monitoring stations: 1