Rivers, lakes, and streams data


We assess data collected internally by our environmental data unit. Data are also obtained and assessed by the U.S. Geological Survey, River Watch, and third parties.

Submit data to the Water Quality Control Division

Secondary Water Supply Data Library data call information

Due date September 1, 2024

Data can be submitted using the following templates:

Get water quality data

Data received through annual data call:

Division's water quality data can be obtained through the following sites:

Other valuable data sources