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Clean Water Act discharge permit · NPDES AZMS81431

RESOLUTION COPPER MINING - SUPERIOR OPERATIONS, Superior, AZ: NPDES AZMS81431 discharge permit, effluent exceedances, inspections, penalties

RESOLUTION COPPER MINING - SUPERIOR OPERATIONS, held by Resolution Copper Mining Llc, holds NPDES permit AZMS81431. EPA’s file records it issued February 28, 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 RESOLUTION COPPER MINING - SUPERIOR OPERATIONS: its NPDES ID, its permit type and status, its dates, its address in Superior, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZMS81431.

Identity

Facility as filedRESOLUTION COPPER MINING - SUPERIOR OPERATIONS
Permittee as filedResolution Copper Mining Llc
NPDES IDAZMS81431
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedFebruary 28, 2020
Expiration dateDecember 30, 2024
AddressSuperior, AZ 85173
Receiving water impaired303(D) Listed
SubwatershedSilver King Wash-Queen Creek (HUC 150501000402)
Other EPA IDs (FRS)RCRA handler AZD001886654

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES AZMS81431.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES AZMS81431.

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, AZMS81431.

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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 AZMS81431 there.

Nearby on the register

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

What this page shows

Resolution Copper Mining - Superior Operations is one of 34 general permit coverages in Pinal County on EPA's NPDES register, including this one. It is also one of 14 NPDES permits in the Silver King Wash-Queen Creek subwatershed, including this one. Of the 34 general permit coverages in Pinal County, 0.0% have a violation on file, and this permit has no pollutants under a numeric limit or with an effluent exceedance.