Community Water System · PWSID AK2340191

Wales Water System

Serves 173 peopleGroundwaterOwner: Native AmericanWales, 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 1993: 294 violations. 26 over the limit · 4 treatment lapses · 251 missed or late tests · 13 notices or reports. Most recent began 2025-06-01.

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

26Over the limit
4Treatment lapse
251Missed or late test1 open
13Notice or report

More violations on record than 96% 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

1993 · Missed or late test: 119952000 · Missed or late test: 120002001 · Missed or late test: 12002 · Missed or late test: 12003 · Notice or report: 12004 · Notice or report: 12005 · Notice or report: 120052006 · Notice or report: 12010 · Missed or late test: 120102011 · Over the limit: 32012 · Over the limit: 42012 · Notice or report: 12013 · Over the limit: 42014 · Over the limit: 42014 · Missed or late test: 102014 · Notice or report: 22015 · Missed or late test: 320152016 · Missed or late test: 142016 · Missed or late test: 142017 · Over the limit: 32017 · Missed or late test: 42017 · Notice or report: 12018 · Over the limit: 12018 · Missed or late test: 32019 · Missed or late test: 32020 · Over the limit: 32020 · Missed or late test: 242020 · Missed or late test: 242020 · Missed or late test: 2420202021 · Over the limit: 32021 · Missed or late test: 52021 · Notice or report: 22022 · Treatment lapse: 22022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302022 · Missed or late test: 1302023 · Over the limit: 12023 · Treatment lapse: 22023 · Missed or late test: 42024 · Missed or late test: 422024 · Missed or late test: 422024 · Missed or late test: 422024 · Missed or late test: 422024 · Notice or report: 32025 · Missed or late test: 42025
One square ≈ 11 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
9% over the limit · 261% treatment lapse · 485% missed or late test · 2514% notice or report · 13

Across Alaska, 88% of violations are missed or late tests and 2% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Combined Uranium2023-10-01 · Combined Uranium: measured 40.00 UG/L vs limit 30.00 UG/L (1.3×)2021-07-01 · Combined Uranium: measured 37.00 UG/L vs limit 30.00 UG/L (1.2×)2021-04-01 · Combined Uranium: measured 37.00 UG/L vs limit 30.00 UG/L (1.2×)2021-01-01 · Combined Uranium: measured 39.00 UG/L vs limit 30.00 UG/L (1.3×)2020-10-01 · Combined Uranium: measured 35.00 UG/L vs limit 30.00 UG/L (1.2×)2020-07-01 · Combined Uranium: measured 39.00 UG/L vs limit 30.00 UG/L (1.3×)2020-01-01 · Combined Uranium: measured 40.00 UG/L vs limit 30.00 UG/L (1.3×)2018-01-01 · Combined Uranium: measured 32.00 UG/L vs limit 30.00 UG/L (1.1×)2017-10-01 · Combined Uranium: measured 33.00 UG/L vs limit 30.00 UG/L (1.1×)2017-07-01 · Combined Uranium: measured 31.00 UG/L vs limit 30.00 UG/L (1.0×)2017-01-01 · Combined Uranium: measured 32.00 UG/L vs limit 30.00 UG/L (1.1×)2014-10-01 · Combined Uranium: measured 0.0310 MG/L vs limit 0.0300 MG/L (1.0×)2014-07-01 · Combined Uranium: measured 0.0330 MG/L vs limit 0.0300 MG/L (1.1×)2014-04-01 · Combined Uranium: measured 0.0370 MG/L vs limit 0.0300 MG/L (1.2×)2014-01-01 · Combined Uranium: measured 0.0360 MG/L vs limit 0.0300 MG/L (1.2×)2013-10-01 · Combined Uranium: measured 0.0340 MG/L vs limit 0.0300 MG/L (1.1×)2013-07-01 · Combined Uranium: measured 0.0350 MG/L vs limit 0.0300 MG/L (1.2×)2013-04-01 · Combined Uranium: measured 0.0340 MG/L vs limit 0.0300 MG/L (1.1×)2013-01-01 · Combined Uranium: measured 0.0340 MG/L vs limit 0.0300 MG/L (1.1×)2012-10-01 · Combined Uranium: measured 0.0350 MG/L vs limit 0.0300 MG/L (1.2×)2012-07-01 · Combined Uranium: measured 0.0340 MG/L vs limit 0.0300 MG/L (1.1×)2012-04-01 · Combined Uranium: measured 0.0340 MG/L vs limit 0.0300 MG/L (1.1×)2012-01-01 · Combined Uranium: measured 0.0328 MG/L vs limit 0.0300 MG/L (1.1×)2011-10-01 · Combined Uranium: measured 0.0322 MG/L vs limit 0.0300 MG/L (1.1×)2011-07-01 · Combined Uranium: measured 0.0312 MG/L vs limit 0.0300 MG/L (1.0×)2011-04-01 · Combined Uranium: measured 34.00 UG/L vs limit 30.00 UG/L (1.1×)
Each dot is one over-the-limit violation: the measured value divided by the limit it broke, on a log scale. Most legal limits for chemicals are running averages set for a lifetime of drinking, so “just over” and “ten times over” are very different news. Hover a dot for the numbers.

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 3 results on file · action level 15 ppb

1.9 ppb
1.7 ppb
1.1 ppb

Open now (1)

  1. 2024-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen

Every violation on record

  1. 2025-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  2. 2025-05-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  3. 2025-04-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2025-01-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2024-11-29Public NoticePN Violation without NPDWR ViolationBack in compliance
  6. 2024-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  7. 2024-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  8. 2024-08-20Public NoticePN Violation without NPDWR ViolationBack in compliance
  9. 2024-07-01Combined UraniumMonitoring, RegularBack in compliance
  10. 2024-05-01Revised Total Coliform RuleMONBack in compliance
  11. 2024-04-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2024-04-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2024-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  14. 2024-01-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  15. 2024-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2024-01-01SeleniumMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2024-01-01Thallium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2024-01-01Beryllium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2024-01-01Antimony, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2024-01-01NickelMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2024-01-01MercuryMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2024-01-01FluorideMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2024-01-01CyanideMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2024-01-01ChromiumMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2024-01-01CadmiumMonitoring, RegularPeriod ended · no return to compliance on file
Show the other 268 entries
  1. 2024-01-01BariumMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2024-01-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2024-01-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2024-01-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2024-01-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2024-01-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2024-01-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2024-01-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2024-01-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2024-01-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2024-01-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2024-01-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2024-01-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2024-01-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2024-01-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2024-01-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2024-01-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2024-01-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2024-01-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2024-01-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2024-01-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2024-01-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2024-01-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2023-10-01Combined UraniumMCL, Single Samplemeasured 40.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  26. 2023-10-01Groundwater RuleFailure To Address DeficiencyBack in compliance
  27. 2023-09-01Groundwater RuleFailure To Address DeficiencyBack in compliance
  28. 2023-07-01Combined UraniumMonitoring, RegularBack in compliance
  29. 2023-06-01Revised Total Coliform RuleMONBack in compliance
  30. 2023-04-01Combined UraniumMonitoring, RegularBack in compliance
  31. 2023-01-01Combined UraniumMonitoring, RegularBack in compliance
  32. 2022-10-01Combined UraniumMonitoring, RegularBack in compliance
  33. 2022-10-01ChlordaneMonitoring, RegularBack in compliance
  34. 2022-10-01Ethylene DibromideMonitoring, RegularBack in compliance
  35. 2022-10-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  36. 2022-10-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  37. 2022-10-01PentachlorophenolMonitoring, RegularBack in compliance
  38. 2022-10-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  39. 2022-10-01HexachlorobenzeneMonitoring, RegularBack in compliance
  40. 2022-10-012, 4, 5-TpMonitoring, RegularBack in compliance
  41. 2022-10-012, 4-DMonitoring, RegularBack in compliance
  42. 2022-10-01Heptachlor epoxideMonitoring, RegularBack in compliance
  43. 2022-10-01HeptachlorMonitoring, RegularBack in compliance
  44. 2022-10-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  45. 2022-10-01LassoMonitoring, RegularBack in compliance
  46. 2022-10-01AtrazineMonitoring, RegularBack in compliance
  47. 2022-10-01CarbofuranMonitoring, RegularBack in compliance
  48. 2022-10-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  49. 2022-10-01DinosebMonitoring, RegularBack in compliance
  50. 2022-10-01PicloramMonitoring, RegularBack in compliance
  51. 2022-10-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  52. 2022-10-01SimazineMonitoring, RegularBack in compliance
  53. 2022-10-01OxamylMonitoring, RegularBack in compliance
  54. 2022-10-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  55. 2022-10-01GlyphosateMonitoring, RegularBack in compliance
  56. 2022-10-01EndothallMonitoring, RegularBack in compliance
  57. 2022-10-01DiquatMonitoring, RegularBack in compliance
  58. 2022-10-01DalaponMonitoring, RegularBack in compliance
  59. 2022-10-01ToxapheneMonitoring, RegularBack in compliance
  60. 2022-10-01MethoxychlorMonitoring, RegularBack in compliance
  61. 2022-10-01Bhc-GammaMonitoring, RegularBack in compliance
  62. 2022-10-01EndrinMonitoring, RegularBack in compliance
  63. 2022-10-01Revised Total Coliform RuleMONBack in compliance
  64. 2022-07-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  65. 2022-07-01Ethylene DibromideMonitoring, RegularPeriod ended · no return to compliance on file
  66. 2022-07-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  67. 2022-07-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularPeriod ended · no return to compliance on file
  68. 2022-07-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  69. 2022-07-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  70. 2022-07-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  71. 2022-07-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
  72. 2022-07-012, 4-DMonitoring, RegularPeriod ended · no return to compliance on file
  73. 2022-07-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  74. 2022-07-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  75. 2022-07-012, 3, 7, 8-TcddMonitoring, RegularPeriod ended · no return to compliance on file
  76. 2022-07-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  77. 2022-07-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  78. 2022-07-01CarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
  79. 2022-07-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  80. 2022-07-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
  81. 2022-07-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
  82. 2022-07-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  83. 2022-07-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  84. 2022-07-01OxamylMonitoring, RegularPeriod ended · no return to compliance on file
  85. 2022-07-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  86. 2022-07-01GlyphosateMonitoring, RegularPeriod ended · no return to compliance on file
  87. 2022-07-01EndothallMonitoring, RegularPeriod ended · no return to compliance on file
  88. 2022-07-01DiquatMonitoring, RegularPeriod ended · no return to compliance on file
  89. 2022-07-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
  90. 2022-07-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  91. 2022-07-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  92. 2022-07-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  93. 2022-07-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  94. 2022-07-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  95. 2022-06-01Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  96. 2022-04-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  97. 2022-04-01Ethylene DibromideMonitoring, RegularPeriod ended · no return to compliance on file
  98. 2022-04-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  99. 2022-04-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularPeriod ended · no return to compliance on file
  100. 2022-04-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  101. 2022-04-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  102. 2022-04-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  103. 2022-04-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
  104. 2022-04-012, 4-DMonitoring, RegularPeriod ended · no return to compliance on file
  105. 2022-04-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  106. 2022-04-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  107. 2022-04-012, 3, 7, 8-TcddMonitoring, RegularPeriod ended · no return to compliance on file
  108. 2022-04-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  109. 2022-04-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  110. 2022-04-01CarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
  111. 2022-04-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  112. 2022-04-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
  113. 2022-04-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
  114. 2022-04-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  115. 2022-04-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  116. 2022-04-01OxamylMonitoring, RegularPeriod ended · no return to compliance on file
  117. 2022-04-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  118. 2022-04-01GlyphosateMonitoring, RegularPeriod ended · no return to compliance on file
  119. 2022-04-01EndothallMonitoring, RegularPeriod ended · no return to compliance on file
  120. 2022-04-01DiquatMonitoring, RegularPeriod ended · no return to compliance on file
  121. 2022-04-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
  122. 2022-04-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  123. 2022-04-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  124. 2022-04-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  125. 2022-04-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  126. 2022-04-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  127. 2022-04-01Revised Total Coliform RuleMONBack in compliance
  128. 2022-02-01Revised Total Coliform RuleMONBack in compliance
  129. 2022-01-01FluorideMonitoring, RegularBack in compliance
  130. 2022-01-01NitrateMonitoring, RegularBack in compliance
  131. 2022-01-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  132. 2022-01-01Ethylene DibromideMonitoring, RegularPeriod ended · no return to compliance on file
  133. 2022-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  134. 2022-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularPeriod ended · no return to compliance on file
  135. 2022-01-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  136. 2022-01-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  137. 2022-01-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  138. 2022-01-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
  139. 2022-01-012, 4-DMonitoring, RegularPeriod ended · no return to compliance on file
  140. 2022-01-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  141. 2022-01-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  142. 2022-01-012, 3, 7, 8-TcddMonitoring, RegularPeriod ended · no return to compliance on file
  143. 2022-01-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  144. 2022-01-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  145. 2022-01-01CarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
  146. 2022-01-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  147. 2022-01-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
  148. 2022-01-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
  149. 2022-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  150. 2022-01-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  151. 2022-01-01OxamylMonitoring, RegularPeriod ended · no return to compliance on file
  152. 2022-01-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  153. 2022-01-01GlyphosateMonitoring, RegularPeriod ended · no return to compliance on file
  154. 2022-01-01EndothallMonitoring, RegularPeriod ended · no return to compliance on file
  155. 2022-01-01DiquatMonitoring, RegularPeriod ended · no return to compliance on file
  156. 2022-01-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
  157. 2022-01-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  158. 2022-01-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  159. 2022-01-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  160. 2022-01-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  161. 2022-01-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  162. 2022-01-01Revised Total Coliform RuleMONBack in compliance
  163. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  164. 2021-10-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  165. 2021-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  166. 2021-07-01Combined UraniumMCL, Averagemeasured 37.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  167. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  168. 2021-07-01Revised Total Coliform RuleMONBack in compliance
  169. 2021-07-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  170. 2021-04-01Combined UraniumMCL, Single Samplemeasured 37.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  171. 2021-03-01Revised Total Coliform RuleMONBack in compliance
  172. 2021-01-01Combined UraniumMCL, Single Samplemeasured 39.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  173. 2020-11-01Revised Total Coliform RuleMONBack in compliance
  174. 2020-10-01Combined UraniumMCL, Single Samplemeasured 35.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  175. 2020-08-01Revised Total Coliform RuleMONBack in compliance
  176. 2020-07-01Combined UraniumMCL, Single Samplemeasured 39.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  177. 2020-07-01Revised Total Coliform RuleMONBack in compliance
  178. 2020-01-01StyreneMonitoring, RegularBack in compliance
  179. 2020-01-01EthylbenzeneMonitoring, RegularBack in compliance
  180. 2020-01-01TolueneMonitoring, RegularBack in compliance
  181. 2020-01-01BenzeneMonitoring, RegularBack in compliance
  182. 2020-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  183. 2020-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  184. 2020-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  185. 2020-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  186. 2020-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  187. 2020-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  188. 2020-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  189. 2020-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  190. 2020-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  191. 2020-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  192. 2020-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  193. 2020-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  194. 2020-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  195. 2020-01-01DichloromethaneMonitoring, RegularBack in compliance
  196. 2020-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  197. 2020-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  198. 2020-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  199. 2020-01-01Combined UraniumMCL, Single Samplemeasured 40.00 UG/L · limit 30.00 UG/LPeriod ended · no return to compliance on file
  200. 2019-06-01Revised Total Coliform RuleMONBack in compliance
  201. 2019-04-01Revised Total Coliform RuleMONBack in compliance
  202. 2019-02-01Revised Total Coliform RuleMONBack in compliance
  203. 2018-10-01Revised Total Coliform RuleMONBack in compliance
  204. 2018-01-01NitrateMonitoring, RegularBack in compliance
  205. 2018-01-01Combined UraniumMCL, Averagemeasured 32.00 UG/L · limit 30.00 UG/LBack in compliance
  206. 2018-01-01Revised Total Coliform RuleMONBack in compliance
  207. 2017-12-01Revised Total Coliform RuleMONBack in compliance
  208. 2017-11-01Revised Total Coliform RuleMONBack in compliance
  209. 2017-10-01Combined UraniumMCL, Averagemeasured 33.00 UG/L · limit 30.00 UG/LBack in compliance
  210. 2017-07-01Combined UraniumMCL, Averagemeasured 31.00 UG/L · limit 30.00 UG/LBack in compliance
  211. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  212. 2017-06-01Revised Total Coliform RuleMONBack in compliance
  213. 2017-04-01Revised Total Coliform RuleMONBack in compliance
  214. 2017-01-01Combined UraniumMCL, Single Samplemeasured 32.00 UG/L · limit 30.00 UG/LBack in compliance
  215. 2016-12-01Revised Total Coliform RuleMONBack in compliance
  216. 2016-11-01Revised Total Coliform RuleMONBack in compliance
  217. 2016-10-01Revised Total Coliform RuleMONBack in compliance
  218. 2016-08-01Revised Total Coliform RuleMONBack in compliance
  219. 2016-07-01Combined UraniumMonitoring, RegularBack in compliance
  220. 2016-05-01Revised Total Coliform RuleMONBack in compliance
  221. 2016-04-01Combined UraniumMonitoring, RegularBack in compliance
  222. 2016-03-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  223. 2016-02-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  224. 2016-01-01FluorideMonitoring, RegularBack in compliance
  225. 2016-01-01NitrateMonitoring, RegularBack in compliance
  226. 2016-01-01Combined UraniumMonitoring, RegularBack in compliance
  227. 2016-01-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  228. 2016-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  229. 2015-10-01Coliform (TCR)Monitoring, Repeat Major (TCR)Back in compliance
  230. 2015-01-01FluorideMonitoring, RegularBack in compliance
  231. 2015-01-01NitrateMonitoring, RegularBack in compliance
  232. 2014-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  233. 2014-10-01Combined UraniumMCL, Averagemeasured 0.0310 MG/L · limit 0.0300 MG/LBack in compliance
  234. 2014-07-01Combined UraniumMCL, Averagemeasured 0.0330 MG/L · limit 0.0300 MG/LBack in compliance
  235. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  236. 2014-04-01Combined UraniumMCL, Averagemeasured 0.0370 MG/L · limit 0.0300 MG/LBack in compliance
  237. 2014-01-01BariumMonitoring, RegularBack in compliance
  238. 2014-01-01CadmiumMonitoring, RegularBack in compliance
  239. 2014-01-01ChromiumMonitoring, RegularBack in compliance
  240. 2014-01-01CyanideMonitoring, RegularBack in compliance
  241. 2014-01-01MercuryMonitoring, RegularBack in compliance
  242. 2014-01-01NickelMonitoring, RegularBack in compliance
  243. 2014-01-01Antimony, TotalMonitoring, RegularBack in compliance
  244. 2014-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  245. 2014-01-01Thallium, TotalMonitoring, RegularBack in compliance
  246. 2014-01-01SeleniumMonitoring, RegularBack in compliance
  247. 2014-01-01Combined UraniumMCL, Averagemeasured 0.0360 MG/L · limit 0.0300 MG/LBack in compliance
  248. 2013-10-01Combined UraniumMCL, Averagemeasured 0.0340 MG/L · limit 0.0300 MG/LBack in compliance
  249. 2013-07-01Combined UraniumMCL, Averagemeasured 0.0350 MG/L · limit 0.0300 MG/LBack in compliance
  250. 2013-04-01Combined UraniumMCL, Averagemeasured 0.0340 MG/L · limit 0.0300 MG/LBack in compliance
  251. 2013-01-01Combined UraniumMCL, Averagemeasured 0.0340 MG/L · limit 0.0300 MG/LBack in compliance
  252. 2012-10-01Combined UraniumMCL, Averagemeasured 0.0350 MG/L · limit 0.0300 MG/LBack in compliance
  253. 2012-09-13Unknown contaminantSanitary Survey (TCR)Back in compliance
  254. 2012-07-01Combined UraniumMCL, Averagemeasured 0.0340 MG/L · limit 0.0300 MG/LBack in compliance
  255. 2012-04-01Combined UraniumMCL, Averagemeasured 0.0340 MG/L · limit 0.0300 MG/LBack in compliance
  256. 2012-01-01Combined UraniumMCL, Averagemeasured 0.0328 MG/L · limit 0.0300 MG/LBack in compliance
  257. 2011-10-01Combined UraniumMCL, Averagemeasured 0.0322 MG/L · limit 0.0300 MG/LBack in compliance
  258. 2011-07-01Combined UraniumMCL, Averagemeasured 0.0312 MG/L · limit 0.0300 MG/LBack in compliance
  259. 2011-04-01Combined UraniumMCL, Single Samplemeasured 34.00 UG/L · limit 30.00 UG/LBack in compliance
  260. 2010-10-01Combined UraniumMonitoring, RegularBack in compliance
  261. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  262. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  263. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  264. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  265. 2002-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  266. 2001-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  267. 2000-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  268. 1993-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served173
Service connections6
Water sourceGroundwater
System typeCommunity Water System
OwnerNative American
StatusActive
CityWales
EPA ZIP on file99783

Areas served

  • Wales, Nome Census Area

Reading this record

Wales Water System is a community water system that draws from groundwater and serves about 173 people in Wales, 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.