Park Lake is a mesotrophic lake in Clinton County, Michigan. Water quality is graded B based on 1 sampling years through 2022. Water clarity is improving over recent sampling years. Limited fish-species data available. Public access is available. Compared to the 5 other monitored lakes in Clinton County, Park Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2022-09-16. Grade methodology: LakeGrade methodology.
Watch Park Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 10.5 ft. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.5 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Park Lake
Compare lakeside cabins, hotels, and vacation rentals near Park Lake in Clinton County, Michigan — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Park Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Park Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Park Lake — straight to your inbox. No spam, unsubscribe anytime.
Planning a whole trip? See where to stay at Michigan’s top lakes →
Fishing Park Lake
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 |
Location & Depth Map
Free interactive depth-contour map of Park Lake, reaching a maximum surveyed depth of 25 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
County Ranking
Ranked #1 of 6 lakes in Clinton County
Cleaner Lakes Within 30 Miles
Park Lake holds Grade B. One nearby lake has a higher grade.
Nearby Lakes in Clinton County
Explore Park Lake 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
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
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 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 (0.68 km)
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of Park Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- East Lansing MS4-InghamEast Lansing · 3.9 mi away · NPDES MI0059327Recent violation
- Bath Twp MS4-ClintonBath · 1.3 mi away · NPDES MI0060434
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-09-16
Monitoring stations: 1