Is Masefau ASG required to publish a Consumer Confidence Report?

Yes. Masefau ASG is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is Masefau ASG’s next Consumer Confidence Report due?

Masefau ASG’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Pago Pago, AS · Eastern District County

Masefau ASG Water System

Consumer Confidence Report status

Masefau ASG must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for Masefau ASG.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace American Samoa’s official records. Always confirm current status with American Samoa before making decisions based on this information.

System facts

System ID (PWSID): AS9710855
System type: Community Water System
Population served: 457
Service connections: 89
Ownership: state government
Water source: groundwater (wells)

Masefau ASG is one of 94 community water systems in American Samoa in the 500 or fewer people size category, serving 457 people from groundwater.

As of August 1, 2026, its federal record holds 33 entries between 2011 and 2025, all of which EPA lists as closed.

Of the 33, 28 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Radionuclides and Revised Rad Rule, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and inorganic chemicals.

Violation history

Monitoring, Regular
—
Asbestos
April 1, 2025 – June 30, 2025
Resolved
Monitoring, Regular
—
Gross Beta Particle Activity
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Nitrate
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Asbestos
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
December 1, 2023 – February 5, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2023 – December 31, 2023
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2023 – December 31, 2023
Archived
Monitoring, Regular
—
Nitrate
January 1, 2023 – December 31, 2023
Archived
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – June 24, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2021 – June 24, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2019 – June 24, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – June 24, 2025
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2017 – December 31, 2017
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2017 – December 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2017 – December 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2016 – December 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2014 – June 30, 2014
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2014 – March 31, 2014
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2014 – December 8, 2017
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2013 – September 30, 2013
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
March 1, 2013 – September 6, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2013 – February 28, 2013
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2013 – March 31, 2013
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2012 – December 31, 2012
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2012 – September 5, 2013
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2012 – June 30, 2012
Resolved
Monitoring, Regular
—
Gross Beta Particle Activity
April 1, 2012 – June 30, 2012
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2012 – September 11, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 2011 – February 28, 2011
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2025 – June 30, 2025	Monitoring, Regular	Asbestos	—	Resolved
January 1, 2025 – December 31, 2025	Monitoring, Regular	Gross Beta Particle Activity	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Nitrate	—	Archived
January 1, 2025 – March 31, 2025	Monitoring, Regular	Asbestos	—	Resolved
December 1, 2023 – February 5, 2024	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	TTHM	—	Archived
January 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
January 1, 2023 – December 31, 2023	Monitoring, Regular	Nitrate	—	Archived
July 1, 2022 – June 24, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2021 – June 24, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2019 – June 24, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2018 – June 24, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Nitrate	—	Archived
January 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2014 – December 8, 2017	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
March 1, 2013 – September 6, 2013	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
February 1, 2013 – February 28, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2013 – March 31, 2013	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2012 – December 31, 2012	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2012 – September 5, 2013	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
April 1, 2012 – June 30, 2012	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2012 – June 30, 2012	Monitoring, Regular	Gross Beta Particle Activity	—	Resolved
January 1, 2012 – September 11, 2013	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
February 1, 2011 – February 28, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

September 10, 2025State Compliance achieved1 linked violation
September 10, 2025State Compliance achieved1 linked violation
June 24, 2025State Compliance achieved1 linked violation
June 24, 2025State Compliance achieved1 linked violation
June 24, 2025State Compliance achieved1 linked violation
June 24, 2025State Compliance achieved1 linked violation
April 1, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 5, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 5, 2024State Compliance achieved1 linked violation
June 26, 2018State Compliance achieved1 linked violation
June 26, 2018State Compliance achieved1 linked violation
June 26, 2018State Compliance achieved1 linked violation
June 26, 2018State Compliance achieved1 linked violation
June 26, 2018State Compliance achieved1 linked violation
June 26, 2018State Compliance achieved1 linked violation
December 8, 2017State Compliance achieved1 linked violation
October 3, 2016State Compliance achieved1 linked violation
October 3, 2016State Compliance achieved1 linked violation
October 3, 2016State Compliance achieved1 linked violation
October 3, 2016State Compliance achieved1 linked violation
October 3, 2016State Compliance achieved1 linked violation
February 16, 2016State Compliance achieved1 linked violation
June 18, 2014State Compliance achieved1 linked violation
June 12, 2014State Compliance achieved1 linked violation
June 12, 2014State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 11, 2013State Compliance achieved1 linked violation
September 6, 2013State Compliance achieved1 linked violation
September 6, 2013State Compliance achieved1 linked violation
September 5, 2013State Compliance achieved1 linked violation
August 16, 2011State Compliance achieved1 linked violation

Common questions

Is Masefau ASG required to publish a Consumer Confidence Report?: Yes. Masefau ASG is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is Masefau ASG’s next Consumer Confidence Report due?: Masefau ASG’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Masefau ASG have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for Masefau ASG.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

American Samoa Power Authority

6846991234

Pago Pago, AS 96799