What is the cleanest lake in Pinellas County, Florida?

Pinellas-Hewitt Lake in Pinellas County is the cleanest lake on the readings in Pinellas County, Florida with an EPA water-quality readings of — and 5 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 Pinellas County, Florida

Pinellas-Hewitt Lake in Pinellas County leads the rankings on measured clarity and nutrients and 5 ft of clarity. Below are the top 25 cleanest monitored lakes in Pinellas County, Florida, ranked by EPA water quality score.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Pinellas-Hewitt Lake	Pinellas	—	5 ft	16 µg/L	-
2	Lake Chautauqua	Pinellas	—	4.3 ft	10 µg/L	-
3	Lake Tarpon	Pinellas	—	2.3 ft	30 µg/L	-
4	Pinellas-Bellevue Lake	Pinellas	—	5 ft	27 µg/L	-
5	Pinellas-Meadow West Lake	Pinellas	—	5 ft	35 µg/L	-
6	Mckay Creek Lake	Pinellas	—	-	20 µg/L	-
7	Pinellas-Autu Lake	Pinellas	—	2.8 ft	49 µg/L	-
8	Lake Maggiore	Pinellas	—	-	50 µg/L	-
9	Alligator Lake	Pinellas	—	2.6 ft	155 µg/L	-
10	Harbor Isles Lake	Pinellas	—	1.6 ft	95 µg/L	-
11	Lake Seminole	Pinellas	—	1.6 ft	60 µg/L	-
12	Pinellas-Jungle Lake	Pinellas	—	2.3 ft	277 µg/L	-
13	Pinellas-Crescent Lake	Pinellas	—	4 ft	77 µg/L	-
14	Lake Seminole	Pinellas	—	1 ft	75 µg/L	-
15	Pinellas-Winston Lake	Pinellas	—	2.1 ft	82 µg/L	-
16	Pinellas-Seminole Lake	Pinellas	—	1.5 ft	63 µg/L	-
17	Pinellas-Saundra Lake	Pinellas	—	1.3 ft	101 µg/L	-
18	Crecent Lake	Pinellas	—	-	80 µg/L	-
19	Jungle Lake@Wfp	Pinellas	—	-	280 µg/L	-
20	Alligator Creek Lake	Pinellas	—	-	155 µg/L	-
21	Taylor Lake	Pinellas	—	-	-	-
22	Jerry Lake	Pinellas	—	-	-	-
23	Saint George Lake	Pinellas	—	-	-	-
24	Salt Lake	Pinellas	—	-	-	-
25	Lake Avoca	Pinellas	—	-	-	-

Ranked List

More Answers for Pinellas County, Florida