C

M of Petty Gulf Lake

Leon County, FloridaEutrophic

M of Petty Gulf Lake is a productive, nutrient-rich eutrophic lake in Leon County, Florida. Water quality is graded C based on 2 sampling years through 2025. Compared to the 126 other monitored lakes in Leon County, M of Petty Gulf Lake ranks #78 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-06-25. Grade methodology: LakeGrade methodology.

Watch M of Petty Gulf Lake 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 1.6 ft of visibility. Phosphorus level: 21 µg/L. Trophic State Index: 59.

Metric	Value	Grade
Water Clarity (Secchi Depth)	1.6 ft	F
Phosphorus	21 µg/L	B
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	59	Eutrophic

High nutrients, frequent algae, reduced clarity

Location

Loading map…

County Ranking

Ranked #78 of 127 lakes in Leon County

Cleaner Lakes Within 30 Miles

M of Petty Gulf Lake holds Grade C. 2 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Leon County

Leon-Petty Gulf Lake

Petty Gulf Lake

M of Lower Dianne Lake

More Florida Lake Rankings

Cleanest lakes in Florida

Top 25 by overall water quality score

Best swimming lakes in Florida

Grade A/B + low algae filter

Family fishing lakes in Florida

Panfish-rich, public access

All Florida lakes

Full state directory

Other Grade C Lakes in Florida

Lake Lancaster West

Orange County · Clarity: 3.5 ft

Eastern Lake Outlet

Walton County · Clarity: 4.2 ft

Seminole-Secret Lake

Seminole County · Clarity: 4.5 ft

Seminole County · Clarity: 2.9 ft

Polk-Fannie Lake

Polk County · Clarity: 3.5 ft

Volusia-North Talmadge Lake

Volusia County · Clarity: 4.5 ft

Eutrophic Lakes in Florida

Lake Lancaster West Flagler-Emerald Lake Eastern Lake Outlet Seminole-Secret Lake

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2025-06-25

Monitoring stations: 1

Where to stay near M of Petty Gulf Lake

Compare lakeside cabins, hotels, and vacation rentals near M of Petty Gulf Lake in Leon 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.