Clean Water Act discharge permit · NPDES AZC098778
CHOLLA POWER PLANT, Joseph City, AZ: NPDES AZC098778 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
CHOLLA POWER PLANT, held by Arizona Public Service - Cholla Power Plant, holds NPDES permit AZC098778. EPA’s file records it issued May 15, 2023 and expiring June 30, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for CHOLLA POWER PLANT: its NPDES ID, its permit type and status, its dates, its address in Joseph City, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZC098778.
Identity
| Facility as filed | CHOLLA POWER PLANT |
|---|---|
| Permittee as filed | Arizona Public Service - Cholla Power Plant |
| NPDES ID | AZC098778 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 15, 2023 |
| Expiration date | June 30, 2025 |
| Address | Joseph City, AZ 86032 |
| Subwatershed | Tanner Wash (HUC 150200080603) |
| Other EPA IDs (FRS) | RCRA handler AZD980886303; ICIS-AIR source AZ00000004017Z2369 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES AZC098778.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AZC098778.
Inspections
EPA’s inspection file holds no inspection for NPDES AZC098778.
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 AZC098778.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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, AZC098778.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID AZC098778 there.
Nearby on the register
- Discharge permits in Joseph City
- Every permit record in Joseph City, A to Z
- Discharge permits in Arizona
- Every permit record in Arizona, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.