Park Lake
Clinton County, Michigan183 acresView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Impaired · Pathogens (E. coli, fecal)
- 25 ft max depth
- Limited data
Park Lake in Clinton County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.5 ft visibility. Maximum depth: 25 ft. Surface area: 182.5 acres.
- Clarity
- 9.5 ft
- Max depth
- 25 ft
- Area
- 183 acres
- Trend
- ↓ Declining
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Watch Park Lake’s letter
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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.
Why Park Lake has no grade
Park Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Park Lake is Not Rated — not an F. Its 9.5-foot median from 107 readings collected 2016–2022 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by EGLE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Park Lake is a 183-acre lake in Clinton County, Michigan with a maximum depth of 25 feet. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-16. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedBacteria advisory
The letter is not a swimming clearance. Park Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pathogens (E. coli, fecal). Check local advisories before you swim.
Water quality measurements for Park Lake
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 9.5 ft. TSI 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 25 ft |
| Surface Area | 183 acres |
Fishing Park Lake
Water Quality Trend: ↓ Declining
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.326 m/yr | 7 |
| Phosphorus | ↓ Declining | +1.21 µg/L/yr | 7 |
| Chlorophyll-a | ↓ Declining | +0.35 µg/L/yr | 7 |
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)
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.
Graded lakes near Park Lake
Park Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Clinton County
Frequently asked questions about Park Lake
Where is Park Lake?
- Park Lake is a lake in Clinton County, Michigan. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Park Lake?
- Park Lake in Clinton County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.5 ft visibility. Maximum depth: 25 ft. Surface area: 182.5 acres.
Is Park Lake safe to swim in?
- The letter is not a swimming clearance. Park Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pathogens (E. coli, fecal). Check local advisories before you swim.
How deep is Park Lake?
- Park Lake has a maximum depth of 25 feet. The lake covers 182.5 acres.
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Where this data comes from
107 measurements from 1 monitoring station, 2016–2022. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS107 samples · 2016–2022
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)