Park Lake North Central Basin; Bath Township is a mesotrophic lake in Clinton 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 with 1 public boat landing. Compared to the 5 other monitored lakes in Clinton County, Park Lake North Central Basin; Bath Township ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-09-15. Grade methodology: LakeGrade methodology.
Watch Park Lake North Central Basin; Bath 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 9.5 ft. Chlorophyll-a: 5.9 µg/L. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.5 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 5.9 µg/L | B |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Park Lake North Central Basin; Bath Township
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Fishing Park Lake North Central Basin; Bath Township
Water Quality Trend: → Stable
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.405 m/yr | 3 |
| Chlorophyll-a | ↓ Declining | +1.15 µg/L/yr | 3 |
Recreation & Access
Location
County Ranking
Ranked #2 of 6 lakes in Clinton County
Cleaner Lakes Within 30 Miles
Park Lake North Central Basin; Bath Township holds Grade B. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Clinton County
Explore Park Lake North Central Basin; Bath Township across LakeGrade
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Clinton 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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Other Grade B Lakes in Michigan
Jackson County · Clarity: 10 ft
Washtenaw County · Clarity: 9.5 ft
Washtenaw County · Clarity: 12 ft
Washtenaw County · Clarity: 11.5 ft
Jackson County · Clarity: 12 ft
Washtenaw County · Clarity: 12 ft
Mesotrophic Lakes in Michigan
More records, surveys & data sources
EPA Impairment Status
Park Lake North Central Basin; Bath Township is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040500040608-04 · Official waterbody report · Matched by proximity (0.38 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
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2023-09-15
Monitoring stations: 1