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Clean Water Act discharge permit · NPDES AZMS67807

IMERYS PERLITE USA INC, Superior, AZ: NPDES AZMS67807 discharge permit, effluent exceedances, inspections, penalties

IMERYS PERLITE USA INC, held by Imerys Perlite Usa, Inc, holds NPDES permit AZMS67807. EPA’s file records it issued May 31, 2011 and expiring May 31, 2016. 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 IMERYS PERLITE USA INC: 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 AZMS67807.

Identity

Facility as filedIMERYS PERLITE USA INC
Permittee as filedImerys Perlite Usa, Inc
NPDES IDAZMS67807
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
IssuedMay 31, 2011
Expiration dateMay 31, 2016
AddressSuperior, AZ 85273
SubwatershedSilver King Wash-Queen Creek (HUC 150501000402)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES AZMS67807.

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 AZMS67807.

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 AZMS67807 there.

Nearby on the register

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

What this page shows

The IMERYS PERLITE USA INC permit, NPDES ID AZMS67807, is one of 3 general permit coverages on EPA's NPDES register in Superior, Arizona, this one included. It also sits among 14 NPDES permits in the Silver King Wash-Queen Creek subwatershed (HUC 150501000402), counting this one. The permit lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.