What is the cleanest lake in Duval County, Florida?

Duval-Willow Lake in Duval County is the cleanest lake on the readings in Duval County, Florida with an EPA water-quality readings of — and 3 feet of water clarity.

How are these rankings calculated?

Nutrients and algae, total phosphorus, nitrogen, chlorophyll-a and turbidity, are read against EPA National Lakes Assessment 2022 condition classes for that lake’s ecoregion. Water clarity (Secchi depth) is measured and shown; it is not the letter. Lakes without enough recent samples are UNRATED, not given an F. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in Duval County, Florida

Duval-Willow Lake in Duval County leads the rankings on measured clarity and nutrients and 3 ft of clarity. Below are the top 3 cleanest monitored lakes in Duval County, Florida, ranked by EPA water quality score.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Duval-Willow Lake	Duval	—	3 ft	24 µg/L	-
2	Duval-Hidden Lake	Duval	—	7 ft	15 µg/L	-
3	Turner Pond	Duval	—	-	-	-

Ranked List

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