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Clean Water Act discharge permit · NPDES AZMS80010

WESTERN ROCK PRODUCTS - MESQUITE SITE, AZ: NPDES AZMS80010 discharge permit, effluent exceedances, inspections, penalties

WESTERN ROCK PRODUCTS - MESQUITE SITE, held by Staker & Parson Companies Inc., holds NPDES permit AZMS80010. EPA’s file records it issued January 17, 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 WESTERN ROCK PRODUCTS - MESQUITE SITE: 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 AZMS80010.

Identity

Facility as filedWESTERN ROCK PRODUCTS - MESQUITE SITE
Permittee as filedStaker & Parson Companies Inc.
NPDES IDAZMS80010
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
IssuedJanuary 17, 2020
Expiration dateDecember 30, 2024
AddressAZ 85034
SubwatershedLime Kiln Canyon-Virgin River (HUC 150100100608)

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 AZMS80010.

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 AZMS80010.

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, AZMS80010.

Start the watch

How often?
  • 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 AZMS80010 there.

Nearby on the register

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