Pleasant Lake Central Basin; Freedom Township is a mesotrophic lake in Washtenaw County, Michigan. Water quality is graded C based on 1 sampling years through 2021. Overall water quality is improving over recent sampling years. The lake supports 6 documented fish species including Blackchin shiner, Bluegill, and Bluntnose minnow. Public access is available. Compared to the 16 other monitored lakes in Washtenaw County, Pleasant Lake Central Basin; Freedom Township ranks #10 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2021-09-16. Grade methodology: LakeGrade methodology.
Watch Pleasant Lake Central Basin; Freedom Township water quality
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 7.2 ft. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7.2 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Pleasant Lake Central Basin; Freedom Township
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Pleasant Lake Central Basin; Freedom Township
- → Pleasant Lake Central Basin; Freedom Township fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Pleasant Lake Central Basin; Freedom Township fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Pleasant Lake Central Basin; Freedom Township? (mercury & PFAS guide)
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.67 m/yr | 3 |
| Chlorophyll-a | ↑ Improving | -0.75 µg/L/yr | 3 |
Water Temperature
Pleasant Lake Central Basin; Freedom Township averages about 67°F at the surface in summer, usually warmest in Aug (about 71°F) and coldest in Jun (about 60°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 32 field readings (2019–2019) via the EPA Water Quality Portal. See the full Pleasant Lake Central Basin; Freedom Township water temperature breakdown →
Location & Depth Map
Free interactive depth-contour map of Pleasant Lake Central Basin; Freedom Township, reaching a maximum surveyed depth of 36 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
County Ranking
Ranked #10 of 17 lakes in Washtenaw County
Cleaner Lakes Within 30 Miles
Pleasant Lake Central Basin; Freedom Township holds Grade C. 2 nearby lakes hold higher grades.
Nearby Lakes in Washtenaw County
Explore Pleasant Lake Central Basin; Freedom Township across LakeGrade
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Washtenaw 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
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More Michigan Lake Rankings
Other Grade C Lakes in Michigan
Livingston County · Clarity: 8 ft
Livingston County · Clarity: 7 ft
Livingston County · Clarity: 9.5 ft
Livingston County · Clarity: 8 ft
Livingston County · Clarity: 9 ft
Livingston County · Clarity: 9.5 ft
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: 2021-09-16
Monitoring stations: 1