Clean Water Act discharge permit · NPDES AS0020010

TAFUNA SEWAGE TREATMENT PLANT, Pago Pago, AS: NPDES AS0020010 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
10Pollutants under a numeric limit
4Pollutants with an effluent exceedance

TAFUNA SEWAGE TREATMENT PLANT, held by AMERICAN SAMOA POWER AUTHORITY TAFUNA SEWAGE TREATMENT PLANT, holds NPDES permit AS0020010, which discharges to Vai Cove South Pacific Ocean. EPA’s file records it issued September 30, 1999 and expiring November 1, 2004. 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.

Identity

Facility as filed	TAFUNA SEWAGE TREATMENT PLANT
Permittee as filed	AMERICAN SAMOA POWER AUTHORITY TAFUNA SEWAGE TREATMENT PLANT
NPDES ID	AS0020010
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	September 30, 1999
Expiration date	November 1, 2004
Address	Pago Pago, AS 96799
Receiving water	VAI COVE SOUTH PACIFIC OCEAN

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

Effluent limits and exceedances

10Pollutants on file
10Under a numeric limit
10With a violation of any kind
4With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
BOD, 5-day, 20 deg. C	8	144	8	March 31, 2022	33% over the limit
BOD, 5-day, percent removal	1	18	3	March 31, 2025	37% over the limit
Solids, total suspended	8	137	1	March 31, 2026	2% over the limit
Solids, settleable	2	41	1	December 31, 2011	50% over the limit
TU Static 20Min Chronic Strongyl. purpuratus	2	36	0
Flow, in conduit or thru treatment plant	2	35	0
pH	2	34	0
Oil and grease	2	32	0
Static 20Min Chronic Dendraster excentricus	2	28	0
Solids, suspended percent removal	1	15	0

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES AS0020010.

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, AS0020010.

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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 AS0020010 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES AS0020010, held by the American Samoa Power Authority for the Tafuna Sewage Treatment Plant in Pago Pago, AS, which discharges to Vai Cove South Pacific Ocean. The page lists a permit status of administratively continued, a major discharger class, 10 pollutants under a numeric limit, and 4 pollutants with an effluent exceedance.