Question 1

Cleanest Lakes in San Augustine County, Texas?

Accepted Answer

Sam Rayburn Reservoir in San Augustine County leads the rankings on measured clarity and nutrients and 3.9 ft of clarity. Below are the top 2 cleanest monitored lakes in San Augustine County, Texas, ranked on EPA nutrient and algae measurements.

Question 2

What is the cleanest lake in San Augustine County, Texas?

Accepted Answer

Sam Rayburn Reservoir in San Augustine County has the cleanest nutrient and algae readings in San Augustine County, Texas, with 3.9 feet of measured water clarity.

Question 3

How are these rankings calculated?

Accepted Answer

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 San Augustine County, Texas

Ranked List

More Answers for San Augustine County, Texas

#	Lake	County	Clarity	Phosphorus	Algae
1	Sam Rayburn Reservoir	San Augustine	3.9 ft	27.5 µg/L	18.6 µg/L
2	City Lake	San Augustine	-	-	-