By Arizona Department of Environmental Quality

The Arizona Department of Environmental Quality (ADEQ) is seeking your data for the 2020 Clean Water Act Assessment (also known as Arizona’s Integrated 305(b) Assessment and 303(d) Listing Report). The report is used to assess whether lake and stream uses are protected by the Clean Water Act (CWA) and can be used for recreation, drinking, agriculture, wildlife, and fish consumption. 

ADEQ encourages and welcomes data from all sources: private citizens, businesses, public agencies, state and federal governmental agencies, and non-profit organizations.

Data Period

ADEQ requests all surface water quality data collected for the period from July 1, 2014, to June 30, 2019, that has not previously been submitted to ADEQ.

How to Submit Data

Submit data by June 30, 2019, using one of the following ways:

The preferred method via the EPA Water Quality Data

To ADEQ directly by following the submission guidelines: Click for Submittal Guidance > Please note that to be accepted, the submission must strictly adhere to all guidelines.

ADEQ appreciates and values your efforts and data contributions to help us protect and enhance Arizona’s surface waters now and in the future.