Arizona Water - General: What you need to know

Arizona Environmental Quality Act: Arizona Revised Statutes (AZ Rev. Stat.) 49-101 et seq.

Wastewater: Arizona Administrative Code Rules (AZ Admin. Code R) 18-9-A901 to 18-9-1015

Effluent limitations: AZ Admin. Code R 18-9-A905

Pretreatment standards: AZ Admin. Code R 18-9-A906

Biosolid disposal: AZ Admin. Code R 18-9-1002 and AZ Admin. Code R 18-9-1012

Concentrated animal feeding operations (CAFOs): AZ Admin. Code R 18-9-D901

Wastewater treatment operators: AZ Admin. Code R 18-5-105 to 18-5-116 and AZ Admin. Code R 18-14-301

Drinking water: AZ Admin. Code R 18-4-101 to 18-4-804

Groundwater: AZ Admin. Code R 18-9-A201 to 18-9-E323

Underground injection: AZ Admin. Code R 12-7-175 to 12-7-179

Oil spills: AZ Admin. Code R 12-7-120

Arizona Department of Environmental Quality (ADEQ) Water Quality Division

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

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

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

• Rules. The Arizona Environmental Quality Act requires the Arizona Department of Environmental Quality (ADEQ) to adopt water quality standards and permitting requirements for all navigable waters and all waters in all aquifers to preserve and protect those waters for all present and reasonably foreseeable future uses.

The U.S. Environmental Protection Agency (EPA) has authorized Arizona to administer the National Pollutant Discharge Elimination System (NPDES) permitting program. The state's equivalent to the NPDES permit is called the Arizona Pollutant Discharge Elimination System (AZPDES) permit. See the national ...