Collier-Harveys Lake
Collier County, FloridaEutrophic
Collier-Harveys Lake is a productive, nutrient-rich eutrophic lake in Collier County, Florida. Water quality is graded C based on 2 sampling years through 2025. Compared to the 23 other monitored lakes in Collier County, Collier-Harveys Lake ranks #13 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-02-04. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3 ft of visibility. Phosphorus level: 18 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | D |
| Phosphorus | 18 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #13 of 24 lakes in Collier County
Cleaner Lakes Within 30 Miles
Collier-Harveys Lake holds Grade C. 3 nearby lakes hold higher grades.
- ACollier-Eagle LakeCollier County · 7.5 mi · Two grade letters higher (C → A)
- BLake AvalonCollier County · 0.8 mi · Higher grade (C → B)
- BCollier-Heron Pointe LakeCollier County · 8.7 mi · Higher grade (C → B)
Nearby Lakes in Collier County
More Florida Lake Rankings
Other Grade C Lakes in Florida
Orange County · Clarity: 3.5 ft
Walton County · Clarity: 4.2 ft
Seminole County · Clarity: 4.5 ft
Seminole County · Clarity: 2.9 ft
Polk County · Clarity: 3.5 ft
Volusia County · Clarity: 4.5 ft
Eutrophic Lakes in Florida
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-02-04
Monitoring stations: 3
Where to stay near Collier-Harveys Lake
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