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Discharge permits in Arizona

145 active individual NPDES permits with limits in EPA's file of Oct 22, 2026.

By industry

Sewage treatment plants (92)

Alpine Sanitary District AZ0026174
Apache Junction Sewer District AZ0023931 · major
Arizona Public Service (Aps) AZ0025836
Big Park Improvement District AZ0024082
Bison Ranch Owners Assocation, Inc. AZ0026697
Black Canyon Ranch Rv Resort Llc AZ0024741
CITY Of PHOENIX - 91st AVE WWTP AZ0020524 · major
Colorado River Sewage System AZ0021415 · major
City Of Avondale AZ0023281 · major
City Of Benson AZ0026026 · major
City Of Bisbee AZ0026077 · major
City Of Buckeye AZ0024881 · major
City Of Buckeye AZ0025216 · major
City Of Buckeye AZ0025313 · major
City Of Buckeye AZ0026913 · major
City Of Bullhead City AZ0026808 · major
City Of Casa Grande AZ0025178 · major
City Of Cottonwood AZ0024716 · major
City Of El Mirage AZ0023272 · major
City Of Flagstaff - Wildcat Hill Wwtp AZ0020427 · major
City Of Globe AZ0020249 · major
City Of Goodyear AZ0022357 · major
City Of Goodyear AZ0023582
City Of Goodyear AZ0025135
City Of Holbrook AZ0025542 · major
City Of Kingman AZ0026018
City Of Mesa - Water Resources AZ0024031 · major
City Of Mesa - Water Resources AZ0025151 · major
City Of Mesa - Water Resources AZ0025241 · major
City Of Peoria AZ0024945 · major
City Of Peoria AZ0025119 · major
City Of Phoenix AZ0020559 · major
City Of Phoenix AZ0026727 · major
City Of Safford AZ0024911 · major
City Of Somerton AZ0026603 · major
City Of Tolleson AZ0020338 · major
City Of Tombstone AZ0025577
City Of Williams AZ0025755
City Of Winslow AZ0026310 · major
City Of Yuma - Department Of Public Works AZ0020443 · major
Epcor Water Arizona Inc. AZ0024139
Epcor Water Arizona Inc. AZ0025429 · major
Epcor Water Arizona Inc. AZ0026204 · major
Flagstaff Utilities Division AZ0023639 · major
Frito-Lay North America Inc AZ0025798
Global Water - Hassayampa Utilities Company, Inc. AZ0025453 · major
Global Water - Hassayampa Utilities Company, Inc. AZ0025585
Global Water - Hassayampa Utilities Company, Inc. AZ0026611
Global Water - Palo Verde Utilities Company, Inc. AZ0025071 · major
Global Water - Palo Verde Utilities Company, Inc. AZ0026816
International Boundary And Water Commission AZ0025607 · major
Kings Ranch Unit 2 Domestic Wastewater Improvement District AZ0023060
Liberty Utilities (Litchfield Park Water & Sewer) Corp. AZ0025712 · major
Liberty Utilities (Sub) Corp. AZ0026425 · major
Mesa, City of AZ0024627 · major
Mountain Pass Utility Company AZ0024775
Northern Gila County Sanitary District - Dba Green Valley Water AZ0020117 · major
Pima County - Division Of Solid Waste Management AZ0026093
Pima County - Regional Wastewater Reclamation Department AZ0020001 · major
Pima County - Regional Wastewater Reclamation Department AZ0022250
Pima County - Regional Wastewater Reclamation Department AZ0024121 · major
Pima County - Regional Wastewater Reclamation Department AZ0024937 · major
Pima County - Regional Wastewater Reclamation Department AZ0026107 · major
Pine Meadows Utilities, Llc AZ0025305
Pinewood Sanitary District AZ0025879
San Carlos Apache Tribe Water Distribution and Wasteater Treatment Facilities Pr AZ0024640
The True Life Companies AZ0024902
Town Of Cave Creek AZ0025828
Town Of Florence AZ0025208 · major
Town Of Florence AZ0026336 · major
Town Of Gila Bend AZ0020231
Town Of Jerome AZ0021804
Town Of Kearny AZ0024449
Town Of Marana AZ0024520 · major
Town Of Patagonia AZ0025011
Town Of Prescott Valley AZ0025381 · major
Town Of Quartzsite AZ0023752
Town Of Superior AZ0021199
Town Of Wickenburg AZ0025976
Town Of Winkelman AZ0020176
Trillium Land Company, Llc AZ0026221
Tusayan Sanitary District AZ0026719
Upper Village of Moenkopi (Uvm) AZ0024619
Us Bureau Of Reclamation AZ0025348 · major
Usdoi Nps - Grand Canyon Np AZ0022152
Utility Source, L.L.C AZ0024708
Valle Airpark, L.L.C. AZ0024015
White Mountain Apache Tribe AZ0022829
White Mountain Apache Tribe AZ0022837
White Mountain Apache Tribe AZ0024058
White Mountain Apache Tribe AZ0024571
White Mountain Apache Tribe AZ0024589

Industrial and other (53)

Asarco, Inc. AZ0024635 · Copper Ores
Adeq AZ0026212 · Nonclassifiable Establishments
Adeq AZ0026328 · Gas And Other Services Combined
American Ranch Dwid AZ0026522
Arizona Department Of Transportation AZS000018 · major
Arizona Game And Fish Department AZ0021211 · Fish Hatcheries And Preserves
Arizona Game And Fish Department AZ0021229 · Fish Hatcheries And Preserves
Arizona Game And Fish Department AZ0021245 · Fish Hatcheries And Preserves
Arizona Minerals, Inc. AZ0026387 · major · Copper Ores
Arizona State Parks AZ0026620
Asarco Llc - Ray Operations AZ0000035 · major · Copper Ores
Az State Prison Complex - Eyman AZ0023485 · Correctional Institutions
Cyprus Tohono Corp AZ0024601 · Copper Ores
Capstone Mining Corp- Pinto Valley Mine AZ0020401 · major · Copper Ores
Central Arizona Water Conservation District AZ0023990 · Irrigation Systems
Chimney Rv Llc AZ0026999 · Hotels And Motels
City Of Lake Havasu City - Mulberry Wwtp AZ0026824 · major
City Of Mesa - Environmental Programs AZS000004 · major
City Of Phoenix AZ0024554 · Water Supply
City Of Phoenix Water Services Department AZ0023442 · major · Water Supply
City Of Scottsdale AZS000020 · major
City Of Tucson - Parks And Recreation Dept AZ0024201 · Water Supply
City Of Tucson - Water AZ0026166 · major · Water Supply
City Of Tucson - Water AZ0026417 · major · Airports, Flying Fields, & Services
City Of Yuma AZ0025411 · Water Supply
Freeport-Mcmoran Bagdad Inc. AZ0022268 · major · Copper Ores
Freeport-Mcmoran Miami Inc. AZ0024350 · Copper Ores
Gold Paradise Peak Inc. AZ0026514 · major · Minerals, Ground Or Treated
Jrc Goodyear, Llc AZ0025747 · Radio & TV Communications Equipment
Mark Anthony Brewing Inc. AZ0026701 · Beer And Ale
Mhc Operating Limited Partnership AZ0021807 · Trailer Parks And Campsites
Motorola Solutions, Inc. AZ0025933 · Water Supply
Motorola Solutions, Inc. AZ0026123 · Water Supply
Nxp Usa, Inc. AZ0025861 · Nonclassifiable Establishments
Resolution Copper Mining Llc AZ0020389 · major · Copper Ores
Saddlebrooke Utility Company AZ0022853 · Apartment Building Operators
Salt River Project (Srp) AZ0023531 · major · Electric Services
Salt River Valley Water Users' Association AZ0024341 · Water Supply
Srp - Santan Generating Station AZ0023558 · major · Electric Services
Srp-Kyrene Generating Station AZ0024791 · major · Electric Services
Stone Castle Properties Llc AZ0026051 · Mobile Home Site Operators
Ta Operating Llc AZ0022756 · Gasoline Service Stations
Tucson Electric Power Company AZ0024821 · Electric Services
US Fish & Wildlife Service AZ0000116 · Fish Hatcheries And Preserves
US Fish & Wildlife Service AZ0000124 · Fish Hatcheries And Preserves
Usdoi - Lower Colorado AZ0025160 · Electric Services
Usdoi Br -Glen Canyon Dam & Power Plant AZ0026182 · Electric Services
Usdoi Br -Glen Canyon Dam & Power Plant AZ0026280 · Electric Services
Usdoi Fish & Wildlife - Willow Beach National Fish Hatchery AZ0000132 · Fish Hatcheries And Preserves
Usdoi Nps - Grand Canyon Np AZ0023621 · Water Supply
Usdoi Nps - Grand Canyon Np AZ0110426 · Amusement And Recreation
Virgin River Domestic Wastewater Improvement District AZ0023655 · Management Services
White Mountian Apache Tribe AZ0024511 · Construction Sand And Gravel

Source: EPA ECHO, Oct 22, 2026. As JSON: /api/v1/permits?state=AZ · MCP: https://passage-data.com/mcp · All states