What is the cleanest lake in Wake County, North Carolina?

Lake Johnson in Wake County has the cleanest nutrient and algae readings in Wake County, North Carolina, with 3 feet of measured 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 separately. Lakes without enough recent samples are listed without a condition class rather than ranked low. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in Wake County, North Carolina

Lake Johnson in Wake County leads the rankings on measured clarity and nutrients and 3 ft of clarity. Below are the top 15 cleanest monitored lakes in Wake County, North Carolina, ranked on EPA nutrient and algae measurements.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Lake Johnson	Wake	3 ft	40 µg/L	23 µg/L
2	Lake Raleigh	Wake	2.5 ft	45 µg/L	29.5 µg/L
3	Harris Lake	Wake	2.5 ft	90 µg/L	43 µg/L
4	Falls of the Neuse Reservoir	Wake	2.2 ft	40 µg/L	36 µg/L
5	Lake Wheeler	Wake	2.8 ft	50 µg/L	35 µg/L
6	Lake Crabtree	Wake	1.1 ft	85 µg/L	35 µg/L
7	Sycamore Lake	Wake	2 ft	50 µg/L	32 µg/L
8	Apex Reservoir	Wake	1.8 ft	50 µg/L	35.5 µg/L
9	Big Lake	Wake	2.3 ft	50 µg/L	37 µg/L
10	Bass Lake	Wake	2.5 ft	50 µg/L	31 µg/L
11	Beaverdam Lake	Wake	2.5 ft	45 µg/L	33 µg/L
12	Lake Benson	Wake	2.3 ft	50 µg/L	38 µg/L
13	Reedy Creek Lake	Wake	2 ft	65 µg/L	32.5 µg/L
14	Shearon Harris Reservoir	Wake	-	-	-
15	Brier Creek Reservoir	Wake	-	-	-

Ranked List

More Answers for Wake County, North Carolina