Pima County, AZ septic permits and regulations

Septic systems in Pima County, Arizona are permitted by Pima County Department of Environmental Quality under Arizona Administrative Code Title 18, Chapter 9, Article 3 (R18-9-A301 et seq.).

Septic permit program

  • Program type: County Health Department
  • Authorized agent: Pima County Health Department
  • Own septic program: No, uses Arizona state rules
  • Local rules beyond the state: No
  • Population: 1,043,433

Permit fee comparison

Average septic permit fee in Pima County: $140. Arizona average: $265.

Local rules

Updated 2026-05-10 after official-site audit. Pima County DEQ directly administers onsite wastewater permits under delegated ADEQ authority.

What SepticPro has on file for Pima County

  • 13 permit fees with sources
  • The agency phone, email and office address
  • Setback distances
  • Soil and perc test requirements
  • Allowed system types
  • System design rules
  • Inspection requirements
  • Maintenance and pumping rules
  • Point-of-sale rules
  • Installer, designer and pumper licensing

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Draw a permit-ready site plan for Pima County

Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for Pima County Department of Environmental Quality. See how SepticPro site plans work.

Other Arizona counties

Data checked 2026-03-16. Always confirm requirements with Pima County Department of Environmental Quality before applying.