Community Water System · PWSID AK2360109

Too'gha Inc - in Tanana

Serves 271 peopleSurface WaterOwner: Native AmericanTanana, Alaska
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 2004: 168 violations. 10 treatment lapses · 152 missed or late tests · 6 notices or reports. Most recent began 2025-09-01.

None of them is a measurement of contaminated water.

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

0Over the limit
10Treatment lapse
152Missed or late test1 open
6Notice or report

More violations on record than 93% of active water systems in Alaska. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2004 · Notice or report: 12005 · Missed or late test: 22005 · Notice or report: 120052006 · Notice or report: 12007 · Notice or report: 120102015 · Notice or report: 120152018 · Notice or report: 12019 · Missed or late test: 22020 · Missed or late test: 72020 · Missed or late test: 720202021 · Treatment lapse: 32021 · Missed or late test: 122021 · Missed or late test: 122021 · Missed or late test: 122022 · Missed or late test: 372022 · Missed or late test: 372022 · Missed or late test: 372022 · Missed or late test: 372022 · Missed or late test: 372022 · Missed or late test: 372022 · Missed or late test: 372022 · Missed or late test: 372023 · Treatment lapse: 22023 · Missed or late test: 192023 · Missed or late test: 192023 · Missed or late test: 192023 · Missed or late test: 192024 · Treatment lapse: 22024 · Missed or late test: 502024 · Missed or late test: 502024 · Missed or late test: 502024 · Missed or late test: 502024 · Missed or late test: 502024 · Missed or late test: 502024 · Missed or late test: 502024 · Missed or late test: 502024 · Missed or late test: 502024 · Missed or late test: 502025 · Treatment lapse: 32025 · Missed or late test: 232025 · Missed or late test: 232025 · Missed or late test: 232025 · Missed or late test: 232025 · Missed or late test: 232025
One square ≈ 5 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
6% treatment lapse · 1090% missed or late test · 1524% notice or report · 6

Across Alaska, 88% of violations are missed or late tests and 2% 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 4 results on file · action level 15 ppb

18 ppb
11 ppb
2.8 ppb
1.6 ppb

Copper, 90th percentile 2 results on file · action level 1.3 mg/L

4.4 mg/L
1.7 mg/L

Open now (1)

  1. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen

Every violation on record

  1. 2025-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  2. 2025-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  3. 2025-08-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  4. 2025-08-01Revised Total Coliform RuleMONBack in compliance
  5. 2025-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  6. 2025-08-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  8. 2025-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  9. 2025-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  10. 2025-07-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Period ended · no return to compliance on file
  11. 2025-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  12. 2025-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  13. 2025-06-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Period ended · no return to compliance on file
  14. 2025-05-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  15. 2025-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  16. 2025-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  17. 2025-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  18. 2025-03-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  19. 2025-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  20. 2025-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  21. 2025-02-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  22. 2025-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  23. 2025-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  24. 2025-01-01Revised Total Coliform RuleMONBack in compliance
  25. 2025-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
Show the other 141 entries
  1. 2025-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2024-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  3. 2024-12-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  4. 2024-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  5. 2024-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  6. 2024-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  7. 2024-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  8. 2024-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  9. 2024-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  10. 2024-10-01Revised Total Coliform RuleMONBack in compliance
  11. 2024-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2024-09-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  13. 2024-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  14. 2024-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  15. 2024-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  16. 2024-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  17. 2024-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  18. 2024-06-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
  19. 2024-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  20. 2024-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  21. 2024-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  22. 2024-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  23. 2024-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  24. 2024-04-01Surface water filtration (IESWTR) ×2Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  25. 2024-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  26. 2024-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  27. 2024-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  28. 2024-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  29. 2024-01-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  30. 2024-01-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  31. 2024-01-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  32. 2024-01-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  33. 2024-01-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  34. 2024-01-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  35. 2024-01-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  36. 2024-01-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  37. 2024-01-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  38. 2024-01-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  39. 2024-01-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  40. 2024-01-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  41. 2024-01-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  42. 2024-01-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  43. 2024-01-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  44. 2024-01-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  45. 2024-01-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  46. 2024-01-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  47. 2024-01-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  48. 2024-01-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  49. 2024-01-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  50. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  51. 2024-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  52. 2024-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  53. 2023-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  54. 2023-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  55. 2023-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  56. 2023-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  57. 2023-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  58. 2023-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  59. 2023-08-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  60. 2023-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  61. 2023-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  62. 2023-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  63. 2023-05-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  64. 2023-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  65. 2023-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  66. 2023-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  67. 2023-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  68. 2023-03-01Revised Total Coliform RuleMONBack in compliance
  69. 2023-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  70. 2023-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  71. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  72. 2023-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  73. 2023-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  74. 2022-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  75. 2022-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  76. 2022-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  77. 2022-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  78. 2022-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  79. 2022-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  80. 2022-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  81. 2022-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  82. 2022-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  83. 2022-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  84. 2022-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  85. 2022-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  86. 2022-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  87. 2022-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  88. 2022-04-01Revised Total Coliform RuleMONBack in compliance
  89. 2022-01-01StyreneMonitoring, RegularBack in compliance
  90. 2022-01-01EthylbenzeneMonitoring, RegularBack in compliance
  91. 2022-01-01TolueneMonitoring, RegularBack in compliance
  92. 2022-01-01BenzeneMonitoring, RegularBack in compliance
  93. 2022-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  94. 2022-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  95. 2022-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  96. 2022-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  97. 2022-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  98. 2022-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  99. 2022-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  100. 2022-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  101. 2022-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  102. 2022-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  103. 2022-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  104. 2022-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  105. 2022-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  106. 2022-01-01DichloromethaneMonitoring, RegularBack in compliance
  107. 2022-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  108. 2022-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  109. 2022-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  110. 2022-01-01NitrateMonitoring, RegularBack in compliance
  111. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  112. 2021-12-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  113. 2021-11-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  114. 2021-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  115. 2021-10-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  116. 2021-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  117. 2021-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  118. 2021-05-01Revised Total Coliform RuleMONBack in compliance
  119. 2021-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  120. 2021-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  121. 2021-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  122. 2021-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  123. 2021-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  124. 2021-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  125. 2021-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  126. 2020-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  127. 2020-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  128. 2020-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  129. 2020-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  130. 2020-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  131. 2020-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  132. 2020-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  133. 2019-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  134. 2019-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  135. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  136. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  137. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  138. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  139. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  140. 2005-01-01Lead and Copper Rule ×2Follow-up Or Routine LCR Tap M/RBack in compliance
  141. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served271
Service connections65
Water sourceSurface Water
System typeCommunity Water System
OwnerNative American
StatusActive
CityTanana
EPA ZIP on file99777

Areas served

  • Tanana, Yukon-Koyukuk Census Area

Reading this record

Too'gha Inc - in Tanana is a community water system that draws from surface water and serves about 271 people in Tanana, Alaska. 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.