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Clean Water Act discharge permit · NPDES GUSSO1001

INARAJAN WASTEWATER TREATMENT PLANT, Inarajan, GU: NPDES GUSSO1001 discharge permit, effluent exceedances, inspections, penalties

INARAJAN WASTEWATER TREATMENT PLANT, held by Guam Waterworks Authority, holds NPDES permit GUSSO1001. EPA’s file records it issued November 1, 2024 and expiring October 31, 2029. 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 INARAJAN WASTEWATER TREATMENT PLANT: its NPDES ID, its permit type and status, its dates, its address in Inarajan, Guam. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES GUSSO1001.

Identity

Facility as filedINARAJAN WASTEWATER TREATMENT PLANT
Permittee as filedGuam Waterworks Authority
NPDES IDGUSSO1001
Permit statusEffective
Permit typeAssociated permit record
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedNovember 1, 2024
Expiration dateOctober 31, 2029
AddressInarajan, GU 96915
SubwatershedInarajan River-Frontal Pacific Ocean (HUC 220100000204)

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 GUSSO1001.

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 GUSSO1001.

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, GUSSO1001.

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 GUSSO1001 there.

Nearby on the register

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