Arizona Hazardous Waste Disposal regulations & environmental compliance analysis

Arizona Hazardous Waste Disposal: What you need to know

Governing Law and Regulations

Hazardous waste disposal facility rules: Arizona Administrative Code Rules (AZ Admin. Code R) 18-8-264 and AZ Admin. Code R 18-8-265 (interim status)

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Disposal prohibitions: AZ Admin. Code R 18-8-270(B)(2)

Landfills: AZ Admin. Code R 18-8-264(P)

Disposal fees: Arizona Revised Statutes (AZ Rev. Stat.) 49-931 and AZ Rev. Stat. 49-932

Regulatory Agency

Arizona Department of Environmental Quality (ADEQ) Waste Programs Division

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Arizona follows the federal hazardous waste disposal rules and adds disposal prohibitions. The state has an additional requirement for disposal of hazardous wastes in landfills, as well as additional permit, registration, and fee requirements for disposal facilities.

Administration and enforcement. ADEQ's Waste Programs Division administers and enforces Arizona's hazardous waste disposal requirements.

State Requirements


AZ Admin. Code R 18-8-270(B)(2)

Arizona prohibits the direct disposal or discharge of hazardous waste into or onto:

  • Waters of the state as defined in AZ Rev. Stat. 49-201(31) (excluding surface impoundments)
  • Injection wells, ditches, alleyways, storm drains, leachfields, or roadways.


AZ Admin. Code R 18-8-264(P)

ADEQ has the discretion to require that hazardous waste disposed of in a permitted landfill be treated before disposal to reduce the water content, water solubility, and toxicity of the waste. For more information, see the state section LANDFILLS.


Permits. The state has additional permit application ...

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