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Clean Water Act discharge permit · NPDES AZMS67236

EMPIRE MOUNTAINS LIMESTONE QUARRY, AZ: NPDES AZMS67236 discharge permit, effluent exceedances, inspections, penalties

EMPIRE MOUNTAINS LIMESTONE QUARRY, held by Calportland Company, holds NPDES permit AZMS67236. EPA’s file records it issued March 22, 2011 and expiring March 22, 2016. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for EMPIRE MOUNTAINS LIMESTONE QUARRY: its NPDES ID, its permit type and status, its dates, its address, Arizona. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES AZMS67236.

Identity

Facility as filedEMPIRE MOUNTAINS LIMESTONE QUARRY
Permittee as filedCalportland Company
NPDES IDAZMS67236
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
IssuedMarch 22, 2011
Expiration dateMarch 22, 2016
AddressAZ

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 AZMS67236.

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 AZMS67236.

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.

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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 AZMS67236 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers Clean Water Act NPDES permit AZMS67236 for EMPIRE MOUNTAINS LIMESTONE QUARRY in AZ, held by Calportland Company, with a Minor Discharger class and an administratively continued status. The register lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance for this permit.