Lake Clarke
Palm Beach County, FloridaLimited DataHypereutrophic
Lake Clarke is a highly nutrient-loaded hypereutrophic lake in Palm Beach County, Florida. Water quality is graded F based on 1 sampling years through 2021. Compared to the 109 other monitored lakes in Palm Beach County, Lake Clarke ranks #110 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2021-05-18. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
No clarity data. Phosphorus level: 110 µg/L. Trophic State Index: 72.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 110 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 72 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Location
County Ranking
Ranked #110 of 110 lakes in Palm Beach County
Cleaner Lakes Within 30 Miles
Lake Clarke holds Grade F. One nearby lake has a higher grade.
Nearby Lakes in Palm Beach County
More Florida Lake Rankings
Other Grade F Lakes in Florida
Hypereutrophic Lakes in Florida
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Lake Clarke under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger.
- Lake Clarke Shores, Town OfWest Palm Beach · 0.2 mi away · NPDES FLS645389Major
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2021-05-18
Monitoring stations: 1
Where to stay near Lake Clarke
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