Arizona Groundwater regulations & environmental compliance analysis

Arizona Groundwater: What you need to know

Governing Law and Regulations

Aquifer protection permits: Arizona Administrative Code (AZ Admin. Code R) 18-9-101 to 18-9-E323

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Individual permits: AZ Admin. Code R 18-9-A201 to 18-9-A214

General permits: AZ Admin. Code R 18-9-A301 to 18-9-E323

Exemptions: AZ Admin. Code R 18-9-103

Groundwater protection list (GPL) for Pesticides: AZ Admin. Code R 18-6-301 to 303

Water supply programs: AZ Admin. Code R 12-15-701 to 12-15-729

Regulatory Agencies

Arizona Department of Environmental Quality (ADEQ) Water Quality Division

ADEQ Waste Programs Division

Arizona Department of Water Resources (ADWR)

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Arizona incorporates by reference the federal regulations for groundwater protection, monitoring, and corrective action at both permitted treatment, storage, and disposal facilities (TSDFs) (AZ Admin. Code R 18-8-265) and interim-status TSDFs (AZ Admin. Code R 18-8-264) and adds one additional provision. The state allows the Arizona Department of Environmental Quality (ADEQ) to consider uses of groundwater when making any determination about the use of groundwater in the area around a facility.

Arizona has established an aquifer protection permitting program for facilities that discharge pollutants to aquifers or to land surfaces in a manner such that there is a reasonable probability that the pollutant will reach an aquifer. Arizona also requires developers of certain projects to demonstrate assured or adequate water supply under the state's water supply programs.

Administration and enforcement. ADEQ's Water Quality Division administers and enforces the ...


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