Clean Water Act discharge permit · NPDES AZI108647
FREEPORT-MCMORAN MIAMI INC, Claypool, AZ: NPDES AZI108647 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
FREEPORT-MCMORAN MIAMI INC, held by Freeport-Mcmoran Miami Inc., holds NPDES permit AZI108647, which discharges to Miami Wash | Russell Gulch - Pinal Creek @ 33. EPA’s file records it issued January 16, 2025 and expiring January 15, 2030. 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.
Identity
| Facility as filed | FREEPORT-MCMORAN MIAMI INC |
|---|---|
| Permittee as filed | Freeport-Mcmoran Miami Inc. |
| NPDES ID | AZI108647 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | January 16, 2025 |
| Expiration date | January 15, 2030 |
| Issuing agency | ADEQ |
| Address | Claypool, AZ 85532 |
| Receiving water | Miami Wash | Russell Gulch - PINAL CREEK @ 33 |
| Subwatershed | Bloody Tanks Wash (HUC 150601030602) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 4Pollutants on file
- 4Under a numeric limit
- 1With a violation of any kind
- 1With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 3 | 1 | 1 | October 31, 2025 | 1,438% over the limit |
| Solids, total suspended | 75 | 0 | 0 | ||
| Copper, dissolved [as Cu] | 75 | 0 | 0 | ||
| Zinc, total [as Zn] | 3 | 0 | 0 |
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 AZI108647.
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
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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 AZI108647 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.