Community Water System · PWSID AS9310751

Aunuu Asg

Serves 402 peopleGroundwaterOwner: StatePago Pago, American Samoa
Nothing open that measures the water, but 1 open testing or paperwork violation.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2012: 131 violations. 41 over the limit · 2 treatment lapses · 67 missed or late tests · 21 notices or reports. Most recent began 2025-07-01.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

41Over the limit
2Treatment lapse
67Missed or late test1 open
21Notice or report

More violations on record than 97% of active water systems in American Samoa. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

200520102012 · Over the limit: 42012 · Over the limit: 42012 · Treatment lapse: 12012 · Missed or late test: 22013 · Over the limit: 32013 · Missed or late test: 12014 · Over the limit: 42014 · Over the limit: 42014 · Notice or report: 32015 · Over the limit: 62015 · Over the limit: 620152016 · Over the limit: 42016 · Over the limit: 42016 · Missed or late test: 62016 · Missed or late test: 62016 · Notice or report: 22017 · Over the limit: 52017 · Over the limit: 52017 · Missed or late test: 172017 · Missed or late test: 172017 · Missed or late test: 172017 · Missed or late test: 172017 · Missed or late test: 172017 · Missed or late test: 172017 · Notice or report: 42017 · Notice or report: 42018 · Over the limit: 52018 · Over the limit: 52018 · Missed or late test: 82018 · Missed or late test: 82018 · Missed or late test: 82018 · Notice or report: 42018 · Notice or report: 42019 · Over the limit: 52019 · Over the limit: 52019 · Missed or late test: 62019 · Missed or late test: 62019 · Notice or report: 22020 · Over the limit: 22020 · Missed or late test: 42020 · Missed or late test: 42020 · Notice or report: 220202021 · Over the limit: 22021 · Missed or late test: 52021 · Missed or late test: 52021 · Notice or report: 32022 · Missed or late test: 32022 · Notice or report: 12023 · Missed or late test: 72023 · Missed or late test: 72023 · Missed or late test: 72024 · Over the limit: 12024 · Treatment lapse: 12024 · Missed or late test: 22025 · Missed or late test: 62025 · Missed or late test: 62025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
31% over the limit · 412% treatment lapse · 251% missed or late test · 6716% notice or report · 21

Across American Samoa, 97% of violations are missed or late tests and <1% are water over a limit.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 2 results on file · action level 15 ppb

2 ppb
1.3 ppb

Open now (1)

  1. 2025-06-01E. ColiMonitoring, Source Water (GWR)Open

Every violation on record

  1. 2025-07-01AsbestosMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2025-06-01E. ColiMonitoring, Source Water (GWR)Open
  3. 2025-04-01AsbestosMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2025-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2025-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  6. 2025-01-01AsbestosMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2024-07-01Revised Total Coliform RuleTTBack in compliance
  8. 2024-07-01Revised Total Coliform RuleMCLBack in compliance
  9. 2024-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  10. 2024-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  11. 2023-10-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  12. 2023-10-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  13. 2023-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  14. 2023-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  15. 2023-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  16. 2023-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  17. 2023-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2022-09-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  19. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 2022-07-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  21. 2022-07-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  22. 2021-07-01Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  23. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  24. 2021-07-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  25. 2021-07-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
Show the other 102 entries
  1. 2021-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 16.39 MG/LPeriod ended · no return to compliance on file
  2. 2021-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 4.54 MG/LPeriod ended · no return to compliance on file
  3. 2021-01-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  4. 2021-01-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  5. 2021-01-01SodiumMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2020-10-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  7. 2020-10-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  8. 2020-04-01Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  9. 2020-04-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  10. 2020-04-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  11. 2020-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 16.39 MG/LPeriod ended · no return to compliance on file
  12. 2020-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 4.54 MG/LPeriod ended · no return to compliance on file
  13. 2019-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2019-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1175 MG/LPeriod ended · no return to compliance on file
  15. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  16. 2019-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  17. 2019-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  18. 2019-07-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  19. 2019-07-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  20. 2019-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 16.39 MG/LPeriod ended · no return to compliance on file
  21. 2019-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 4.54 MG/LPeriod ended · no return to compliance on file
  22. 2019-04-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  23. 2019-04-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  24. 2019-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 16.39 MG/LPeriod ended · no return to compliance on file
  25. 2019-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 4.54 MG/LPeriod ended · no return to compliance on file
  26. 2018-12-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  27. 2018-10-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  28. 2018-10-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  29. 2018-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 16.39 MG/LPeriod ended · no return to compliance on file
  30. 2018-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 4.54 MG/LPeriod ended · no return to compliance on file
  31. 2018-07-01Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  32. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  33. 2018-07-01Lead and Copper RuleInitial, Follow-up, or Routine Source Water M/RBack in compliance
  34. 2018-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  35. 2018-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  36. 2018-07-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  37. 2018-07-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Period ended · no return to compliance on file
  38. 2018-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 16.39 MG/LPeriod ended · no return to compliance on file
  39. 2018-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 4.54 MG/LPeriod ended · no return to compliance on file
  40. 2018-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  41. 2018-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  42. 2017-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  43. 2017-10-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Back in compliance
  44. 2017-10-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Back in compliance
  45. 2017-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  46. 2017-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  47. 2017-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  48. 2017-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  49. 2017-07-01Lead and Copper RuleInitial, Follow-up, or Routine Source Water M/RBack in compliance
  50. 2017-07-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  51. 2017-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  52. 2017-07-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Back in compliance
  53. 2017-07-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Back in compliance
  54. 2017-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  55. 2017-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  56. 2017-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  57. 2017-04-01Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  58. 2017-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 53.43 MG/LBack in compliance
  59. 2017-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 6.68 MG/LBack in compliance
  60. 2017-01-01Lead and Copper RuleWater Quality Parameter M/RPeriod ended · no return to compliance on file
  61. 2017-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  62. 2017-01-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Back in compliance
  63. 2017-01-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Back in compliance
  64. 2017-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  65. 2017-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  66. 2017-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  67. 2016-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  68. 2016-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  69. 2016-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  70. 2016-07-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Back in compliance
  71. 2016-07-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Back in compliance
  72. 2016-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  73. 2016-04-01Trihalomethanes (TTHM)Monitoring, Routine (IDSE)Back in compliance
  74. 2016-04-01Total Haloacetic Acids (HAA5)Monitoring, Routine (IDSE)Back in compliance
  75. 2016-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  76. 2016-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  77. 2016-01-01NitrateMonitoring, RegularBack in compliance
  78. 2016-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  79. 2015-12-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  80. 2015-11-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  81. 2015-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  82. 2015-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0928 MG/LBack in compliance
  83. 2015-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1145 MG/LBack in compliance
  84. 2015-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1567 MG/LBack in compliance
  85. 2014-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  86. 2014-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1130 MG/LBack in compliance
  87. 2014-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  88. 2014-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1242 MG/LBack in compliance
  89. 2014-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1461 MG/LBack in compliance
  90. 2014-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  91. 2014-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.2400 MG/LBack in compliance
  92. 2013-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  93. 2013-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.2400 MG/LBack in compliance
  94. 2013-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.2400 MG/LBack in compliance
  95. 2013-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1251 MG/LBack in compliance
  96. 2012-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1251 MG/LBack in compliance
  97. 2012-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  98. 2012-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.3667 MG/LBack in compliance
  99. 2012-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1395 MG/LBack in compliance
  100. 2012-01-01Lead and Copper RulePublic EducationBack in compliance
  101. 2012-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  102. 2012-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1460 MG/LBack in compliance

System details

Population served402
Service connections59
Water sourceGroundwater
System typeCommunity Water System
OwnerState
StatusActive
CityPago Pago
EPA ZIP on file96799

Areas served

  • Aunuu, Eastern District

Reading this record

Aunuu Asg is a community water system that draws from groundwater and serves about 402 people in Pago Pago, American Samoa. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.