De Minimis General Permit Reissued: Action Required

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On June 1, 2021, ADEQ reissued the Arizona Pollutant Discharge Elimination System (AZPDES) De Minimis General Permit (DMGP) for de minimis discharges to surface waters, effective immediately. The 2016 DMGP expired May 31, 2021.

What does De Minimis General Permit mean for me?

Anyone with DMGP coverage must apply to obtain a new Notice of Intent (NOI). To help you avoid a gap in coverage, we are accepting NOI applications for 60 days (through July 30, 2021), subsequently any permit that has not been renewed will be terminated. Additionally, applying for a new NOI requires a fee.

How do I apply under the 2021 permit?

1 – Firstly, Log in to myDEQ and locate your current AZPDES DMGP

2 – Expand the drop-down menu labelled Select an Action and select “Reapply for NOI.” The system will display all the data from your current NOI. 

3 – Subsequently, update the discharge dates and proceed to the end

If you wish to update any other data, first complete the above steps and then use the “Modify NOI” action.

2021 AZPDES De Minimis General Permit

Permit >

Fact Sheet >

Response to Comments >

DMGP web page


Contact Jennifer Widlowski | 602-771-2256 |


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