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Arizona Pollutant Discharge Elimination System (AZPDES)

Biosolids General Permit (GP)

Revised On: Jan. 27th, 2026 - 08:26 pm

This permit is for privately and publicly owned wastewater treatment plants (WWTPs) that prepare biosolids for land application and that do not have coverage under an Arizona Pollutant Discharge Elimination System (AZPDES) individual or general permit containing provisions for the treatment of biosolids. The permit is also for treatment works treating domestic sewage which are not WWTPs and prepare biosolids for land application. The permit is valid for five years. A renewal permit can be continued past five years if a renewal application is received 180 days prior to the expiration date of the permit.

  • AZPDES Biosolids General Permit (2022) | View >

Biosolids Forms

Use this form to apply for coverage under the Biosolids GP:

  • Biosolids GP Notice of Intent (NOI) | View PDF > 

To submit your Biosolids Annual Report as per the terms of the Biosolids General Permit, use the EPA’s Central Data Exchange portal:

  • Submit Biosolids Annual Report using the Central Data Exchange | Learn More >

If your facility land applies biosolids or generates biosolids for land application, in addition to the annual report submission in the EPA’s Central Data Exchange portal, complete the supplemental web form on the ADEQ website:

  • Submit Biosolids Land Application Annual Report using the ADEQ web form | Submit Online >

Use this form to terminate coverage under the Biosolids GP:

CONTACT PERMIT LIAISONS

For: Groundwater
Ph: 602-771-0175
Email Groundwater >

For: Drinking Water
Ph: 602-771-7570

For: Surface Water
Ph: 602-771-1440
Email Surface Water >