Arizona Wetlands regulations & environmental compliance analysis

Arizona Wetlands: What you need to know

Governing Law and Regulations

Arizona biosolids requirements: Arizona Administrative Code Rules (AZ Admin. Code R) 18-9-1007

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Aquifer protection: AZ Admin. Code R 18-9-A301(B)

Tertiary treatment wetlands: AZ Admin. Code R 18-9-D307

Disposal wetlands: AZ Admin. Code R 18-9-D305

Acid rock drainage: AZ Admin. Code R 18-9-D306

Regulatory Agencies

Arizona Department of Environmental Quality (ADEQ) Water Quality Division Water Permits Section

U.S. Army Corps of Engineers (Corps) Los Angeles District Office Sacramento District Office

U.S. Environmental Protection Agency (EPA) Region 9

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. In Arizona, wetlands are protected by the federal dredge and fill permitting programs under Section 404 of the Clean Water Act (CWA), along with additional state regulations that address landfills, groundwater, and biosolids. See the national section WETLANDS for additional information about dredge and fill permitting.

Administration and enforcement. In Arizona, the dredge and fill permit program is jointly administered by the Corps and the EPA. ADEQ's Water Permits Section has authority under Section 401 of the CWA to grant, deny, or waive water quality certification for both individual and nationwide permits. The Corps cannot issue a permit, individual or general, where the ADEQ has not approved or waived certification or where the ADEQ has denied certification.

State Requirements


Arizona has certified that all Corps nationwide permits (NWPs) are applicable in the state. There is no fee for 401 certification in Arizona. See the national section WETLANDS for more ...

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