Lily Lake North Central Basin; Greenwood Township is a mesotrophic lake in Clare County, Michigan. Water quality is graded B based on 2 sampling years through 2023. Water clarity is improving over recent sampling years. Limited fish-species data available. Public access is available. Compared to the 11 other monitored lakes in Clare County, Lily Lake North Central Basin; Greenwood Township ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-09-16. Grade methodology: LakeGrade methodology.
Watch Lily Lake North Central Basin; Greenwood Township water quality
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 7.5 ft. Chlorophyll-a: 3.2 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7.5 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 3.2 µg/L | A |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lily Lake North Central Basin; Greenwood Township
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Fishing Lily Lake North Central Basin; Greenwood Township
Water Quality Trend: → Stable
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +2.73 m/yr | 2 |
| Chlorophyll-a | ↓ Declining | +0.75 µg/L/yr | 3 |
Water Temperature
Lily Lake North Central Basin; Greenwood Township averages about 76°F at the surface in summer, usually warmest in May (about 80°F) and coldest in Sep (about 73°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 26 field readings (2022–2022) via the EPA Water Quality Portal. See the full Lily Lake North Central Basin; Greenwood Township water temperature breakdown →
Location
County Ranking
Ranked #6 of 12 lakes in Clare County
Cleaner Lakes Within 30 Miles
Lily Lake North Central Basin; Greenwood Township holds Grade B. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Clare County
Explore Lily Lake North Central Basin; Greenwood Township across LakeGrade
Fish species and top-graded lakes across Michigan
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Species activity outlook by water temperature and season
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Moderate nutrients, good water quality
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Other Grade B Lakes in Michigan
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More records, surveys & data sources
EPA Impairment Status
Lily Lake North Central Basin; Greenwood Township is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040601020501-03 · Official waterbody report · Matched by proximity (0.3 km)
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-09-16
Monitoring stations: 1