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Clean Water Act discharge permit · NPDES AZC113158

CITY OF PHOENIX - 91ST AVENUE WWTP, Phoenix, AZ: NPDES AZC113158 discharge permit, effluent exceedances, inspections, penalties

CITY OF PHOENIX - 91ST AVENUE WWTP, held by City Of Phoenix, holds NPDES permit AZC113158, which discharges to Salt River | 23rd Avenue Wwtp - Gila River @ 3. EPA’s file records it issued October 28, 2025 and expiring August 28, 2030.

CITY OF PHOENIX - 91ST AVENUE WWTP, Phoenix, Arizona: Coverage under a general permit AZC113158, held by City Of Phoenix; Effective; issued October 28, 2025, term to August 28, 2030, by ADEQ; discharges to Salt River | 23RD AVENUE WWTP - GILA RIVER @ 3.

Other permits held by City Of Phoenix

CITY OF PHOENIX - 91ST AVENUE WWTP among its neighbors

EPA’s permit file holds 181 discharge permits in the Town of Santa Maria-Salt River subwatershed (HUC 150601060306), AZC113158 among them. Its county holds 618, 31 of them major permits; AZC113158 is a minor permit.

Other permits in the Town of Santa Maria-Salt River subwatershed (HUC 150601060306)

What the register holds for CITY OF PHOENIX - 91ST AVENUE WWTP: its NPDES ID, its permit type and status, its dates, its address in Phoenix, Arizona, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC113158.

Identity

Facility as filedCITY OF PHOENIX - 91ST AVENUE WWTP
Permittee as filedCity Of Phoenix
NPDES IDAZC113158
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 28, 2025
Expiration dateAugust 28, 2030
Issuing agencyADEQ
AddressPhoenix, AZ 85353
Receiving waterSalt River | 23RD AVENUE WWTP - GILA RIVER @ 3
SubwatershedTown of Santa Maria-Salt River (HUC 150601060306)
Other EPA IDs (FRS)RCRA handler AZE040913001; ICIS-AIR source AZMCA004013X001075

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES AZC113158.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES AZC113158.

Inspections

EPA’s inspection file holds no inspection for NPDES AZC113158.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES AZC113158.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, AZC113158.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The CITY OF PHOENIX - 91ST AVENUE WWTP permit is one of 350 general permit coverages in Maricopa County on EPA's NPDES register, and it sits among 181 NPDES permits in the Town of Santa Maria-Salt River subwatershed. Of the 350 Maricopa County coverages, 88.9% were issued earlier than this one, and 0.0% of them carry a violation on file, while this permit records no pollutants under a numeric limit and no effluent exceedances.