Clean Water Act discharge permit · NPDES AZMS80944
FREEPORT MCMORAN SIERRITA MINE, Green Valley, AZ: NPDES AZMS80944 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
FREEPORT MCMORAN SIERRITA MINE, held by Freeport-Mcmoran Sierrita, Inc., holds NPDES permit AZMS80944. EPA’s file records it issued February 24, 2020 and expiring December 30, 2024. 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 FREEPORT MCMORAN SIERRITA MINE: its NPDES ID, its permit type and status, its dates, its address in Green Valley, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZMS80944.
Identity
| Facility as filed | FREEPORT MCMORAN SIERRITA MINE |
|---|---|
| Permittee as filed | Freeport-Mcmoran Sierrita, Inc. |
| NPDES ID | AZMS80944 |
| 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 | February 24, 2020 |
| Expiration date | December 30, 2024 |
| Address | Green Valley, AZ 85622 |
| Subwatershed | Demetrie Wash (HUC 150503010603) |
| Other EPA IDs (FRS) | RCRA handler AZD982478216; ICIS-AIR source AZPMC00004019P6067 |
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 AZMS80944.
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 AZMS80944.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
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, AZMS80944.
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 AZMS80944 there.
Nearby on the register
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- Every permit record in Green Valley, A to Z
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- Every permit record in Arizona, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.