Oyster Lake Causeway
Walton County, FloridaEutrophic
Oyster Lake Causeway is a productive, nutrient-rich eutrophic lake in Walton County, Florida. Water quality is graded C based on 2 sampling years through 2025. Compared to the 108 other monitored lakes in Walton County, Oyster Lake Causeway ranks #101 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-02-05. Grade methodology: LakeGrade methodology.
Watch Oyster Lake Causeway water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3 ft of visibility. Phosphorus level: 59 µg/L. Trophic State Index: 62.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | D |
| Phosphorus | 59 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 62 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #101 of 109 lakes in Walton County
Nearby Lakes in Walton County
More Florida Lake Rankings
Other Grade C Lakes in Florida
Orange County · Clarity: 3.5 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
Seminole County · Clarity: 3 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: 2025-02-05
Monitoring stations: 1
Where to stay near Oyster Lake Causeway
Compare lakeside cabins, hotels, and vacation rentals near Oyster Lake Causeway in Walton County, Florida — live availability and prices for your trip.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.