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Arizona Department of Environmental Quality (ADEQ) Waste Programs Division
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Arizona follows the federal requirements for generators accumulating hazardous waste on-site without a permit through its adoption of the U.S. Environmental Protection Agency's (EPA) Hazardous Waste Generator Improvements Rule, effective in Arizona as of March 1, 2019. The state's more stringent rules for small quantity generators (SQGs) and large quantity generators (LQGs) are in connection with inspection records and accumulation of ignitable, reactive, or incompatible wastes.
In addition, Arizona adopts by reference the federal hazardous waste storage rules for permitted and interim-status treatment, storage and disposal facilities (TSDFs), with additional standards in connection with permits, registration, and containment systems of hazardous waste underground hazardous waste tanks.
• Administration and enforcement. The Arizona Department of Environmental Quality (ADEQ) administers and enforces the hazardous waste storage rules in Arizona.
Permits and Registration
Permits. The state has additional permit application requirements for storage facilities, including those ...