Surface Water Protection

Waters of Arizona | Surface Water Protection

The EPA announced the Navigable Waters Protection Rule, which contains a new definition of Waters of the United States (WOTUS), in January 2020. ADEQ is currently reviewing the rule in detail to ensure we fully understand how it impacts Arizona | View ADEQ's WOTUS Page >

ADEQ acknowledges that the new rule narrows protection for some Arizona waterways, including stretches of ephemeral drainages and which only run in response to precipitation events. We are developing a ‘local control approach’ at the state level to potentially address any gaps and protect Arizona’s important and precious water resources.

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Through a collaborative stakeholder process, ADEQ is conducting community engagement and Tribal consultations to hear from people throughout Arizona to develop a Waters of Arizona program outline. Legislative approval will be necessary prior to any program going into effect in Arizona.

Please subscribe to our email list for notifications and regularly check this page for updates regarding Waters of Arizona.

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