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Clean Water Act discharge permit · NPDES GUR10007T

P-928 RELAY GROUND STATION PROJECT, Dededo, GU: NPDES GUR10007T discharge permit, effluent exceedances, inspections, penalties

P-928 RELAY GROUND STATION PROJECT, held by Granite-Obayashi 2, Joint Venture, holds NPDES permit GUR10007T. EPA’s file records it issued January 13, 2025 and expiring February 16, 2027. 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 P-928 RELAY GROUND STATION PROJECT: its NPDES ID, its permit type and status, its dates, its address in Dededo, Guam. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES GUR10007T.

Identity

Facility as filedP-928 RELAY GROUND STATION PROJECT
Permittee as filedGranite-Obayashi 2, Joint Venture
NPDES IDGUR10007T
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJanuary 13, 2025
Expiration dateFebruary 16, 2027
Issuing agencyU.S. EPA
AddressDededo, GU 96929
Receiving water impaired303(D) Listed
SubwatershedMataguac Spring-Frontal Pacific Ocean (HUC 220100000100)

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 GUR10007T.

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 GUR10007T.

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, GUR10007T.

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  • 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 GUR10007T there.

Nearby on the register

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