Macomb County, Michigan · Water Quality Report Card
Lake St Clair Metropark Beach
Lake St Clair Metropark Beach in Macomb County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar.
- Mean depth
- ~10 ft est.
Lake St Clair Metropark Beach is a lake in Macomb County, Michigan with an estimated average depth of about 10 feet.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2023-09-26. Grade methodology: LakeGrade methodology.
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Swimming Safety
Based on E. coli testing, Lake St Clair Metropark Beach never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 38 samples across 4 seasons.
This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Michigan’s current beach and health-department advisories before swimming.
Water Quality Grade: Not rated
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data |
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~10 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Michigan has not published bathymetry for Lake St Clair Metropark Beach.
Where to stay near Lake St Clair Metropark Beach
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Fishing Lake St Clair Metropark Beach
Location
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EPA Impairment Status
Lake St Clair Metropark Beach 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 MI040900020200-02 · Official waterbody report · Matched by proximity (0.02 km)
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Where this data comes from
462 measurements from 6 monitoring stations, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Michigan Water Science Center
USGS-MI462 samples · 2022–2023
Monitoring station identifiers (6)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
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)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2023-09-26
Monitoring stations: 6