Lake Avalon
Collier County, FloridaView mapDirections
No nutrient or algae sampling on record from Florida DEP for this lake.
- Limited data
Lake Avalon in Collier County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Lake Avalon is a lake in Collier County, Florida. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-12-16. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Avalon is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Avalon
These are the measurements Florida DEP publishes for Lake Avalon, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Lake Avalon
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Lake Avalon
Compare lakeside cabins, hotels, and vacation rentals near Lake Avalon in Collier County, Florida — 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.
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Follow Lake Avalon’s readings
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Fishing Lake Avalon
Water Quality Trend: Worsening
Based on 4 years of monitoring (2021–2024).
Water clarity
Stable4 years
Phosphorus
Worsening+0.9 µg/L/yr4 years
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Lake Avalon under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Collier County South County WrfNaples · 2.5 mi away · NPDES FL0141356Recent violation
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.
Nearby Lakes in Collier County
Frequently asked questions about Lake Avalon
Where is Lake Avalon?
- Lake Avalon is a lake in Collier County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Lake Avalon?
- Lake Avalon in Collier County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Is Lake Avalon safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
12 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples12 samples · 2024
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Regulated discharger data from EPA ECHO (ICIS-NPDES)