Masefau ASG
AS - Community Water System - PWSID: AS9710855
System Information
| PWSID | AS9710855 |
| System Name | Masefau ASG |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 14, 2005 |
| Last Reported | Mar 18, 2026 |
Location & Contact
| State | AS |
| City | Pago Pago |
| ZIP Code | 96799 |
| Address | P.O Box PPB |
| Organization | American Samoa Power Authority |
| Phone | 6846991234 |
Population & Service
| Population Served | 457 |
| Service Connections | 89 |
Drinking Water Violations (36)
This water system has 36 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | - | 7 MFL | - | Resolved | Jun 30, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 4 mrem/yr | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | - | 7 MFL | - | Resolved | Mar 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 2025 | - | |
| Dec 1, 2023 | - | MR | No | Yes | - | - | - | Resolved | Feb 5, 2024 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2023 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Jun 24, 2025 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Jun 24, 2025 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Jun 24, 2025 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jun 24, 2025 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 2014 | - | |
| Jan 1, 2014 | - | MR | No | No | - | TT | - | Resolved | Dec 8, 2017 | - | |
| Jan 1, 2014 | Mar 31, 2014 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Mar 31, 2014 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Sep 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 2013 | - | |
| Mar 1, 2013 | - | MR | No | Yes | - | - | - | Resolved | Sep 6, 2013 | - | |
| Feb 1, 2013 | Feb 28, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2013 | - | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Mar 31, 2013 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Dec 31, 2012 | - | |
| Jul 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Sep 5, 2013 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 4 mrem/yr | - | Resolved | Jun 30, 2012 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Jun 30, 2012 | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Sep 11, 2013 | - | |
| Feb 1, 2011 | Feb 28, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 28, 2011 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.