Community Water System · PWSID 101612109

Fort Hall

Serves 2,850 peopleGroundwaterOwner: Native AmericanFort Hall, Idaho
1 open treatment violation.

Open for: Lead service line inventory. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 2005: 181 violations. 3 over the limit · 1 treatment lapse · 174 missed or late tests · 3 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.

3Over the limit
1Treatment lapse1 open
174Missed or late test
3Notice or report2 open

More violations on record than 99% of active water systems in Idaho. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005 · Notice or report: 1200520102011 · Missed or late test: 12012 · Over the limit: 12012 · Missed or late test: 12013 · Missed or late test: 22014 · Over the limit: 12015 · Over the limit: 12015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 572015 · Missed or late test: 5720152016 · Missed or late test: 542016 · Missed or late test: 542016 · Missed or late test: 542016 · Missed or late test: 542016 · Missed or late test: 542016 · Missed or late test: 542016 · Missed or late test: 542016 · Missed or late test: 542016 · Missed or late test: 542016 · Missed or late test: 542016 · Missed or late test: 542020 · Missed or late test: 82020 · Missed or late test: 820202021 · Missed or late test: 22022 · Missed or late test: 22023 · Missed or late test: 252023 · Missed or late test: 252023 · Missed or late test: 252023 · Missed or late test: 252023 · Missed or late test: 252024 · Treatment lapse: 12024 · Missed or late test: 12024 · Notice or report: 22025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025 · Missed or late test: 212025
One square ≈ 5 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
2% over the limit · 3<1% treatment lapse · 196% missed or late test · 1742% notice or report · 3

Across Idaho, 80% of violations are missed or late tests and 5% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Di(2-ethylhexyl) phthalate2015-01-01 · Di(2-ethylhexyl) phthalate: measured 0.0130 MG/L vs limit 0.006000 MG/L (2.2×)2014-10-01 · Di(2-ethylhexyl) phthalate: measured 0.0130 MG/L vs limit 0.006000 MG/L (2.2×)
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 7 results on file · action level 15 ppb

4 ppb
4 ppb
3 ppb
1 ppb
0 ppb
0 ppb
0 ppb

Open now (3)

  1. 2024-12-13Public NoticePN Violation for NPDWR ViolationOpen
  2. 2024-10-17Lead service line inventoryTTOpen
  3. 2024-10-17Lead service line inventoryRPTOpen

Every violation on record

  1. 2025-07-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2025-07-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2025-07-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2025-07-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2025-07-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2025-07-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2025-07-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2025-07-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2025-07-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2025-07-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2025-07-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2025-07-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2025-07-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2025-07-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2025-07-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2025-07-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2025-07-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2025-07-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2025-07-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2025-07-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2025-07-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2024-12-13Public NoticePN Violation for NPDWR ViolationOpen
  23. 2024-10-17Lead service line inventoryTTOpen
  24. 2024-10-17Lead service line inventoryRPTOpen
  25. 2024-07-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
Show the other 152 entries
  1. 2023-10-10E. ColiMonitoring, Source Water (GWR)Back in compliance
  2. 2023-07-012, 3, 7, 8-TcddMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2023-01-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2023-01-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2023-01-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2023-01-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2023-01-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2023-01-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2023-01-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2023-01-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2023-01-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2023-01-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2023-01-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2023-01-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2023-01-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2023-01-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2023-01-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2023-01-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2023-01-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2023-01-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2023-01-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2023-01-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2023-01-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  25. 2023-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  26. 2022-07-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  27. 2022-01-01NitrateMonitoring, RegularBack in compliance
  28. 2021-10-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  29. 2021-07-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  30. 2020-01-01Arsenic ×2Monitoring, RegularBack in compliance
  31. 2020-01-01Combined Radium (-226 and -228) ×2Monitoring, RegularBack in compliance
  32. 2020-01-01Combined Uranium ×2Monitoring, RegularBack in compliance
  33. 2020-01-01Gross Alpha, Excl. Radon and U ×2Monitoring, RegularBack in compliance
  34. 2016-01-01ChlordaneMonitoring, RegularBack in compliance
  35. 2016-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  36. 2016-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  37. 2016-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  38. 2016-01-01PentachlorophenolMonitoring, RegularBack in compliance
  39. 2016-01-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  40. 2016-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
  41. 2016-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  42. 2016-01-012, 4-DMonitoring, RegularBack in compliance
  43. 2016-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
  44. 2016-01-01HeptachlorMonitoring, RegularBack in compliance
  45. 2016-01-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  46. 2016-01-01LassoMonitoring, RegularBack in compliance
  47. 2016-01-01AtrazineMonitoring, RegularBack in compliance
  48. 2016-01-01CarbofuranMonitoring, RegularBack in compliance
  49. 2016-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  50. 2016-01-01DinosebMonitoring, RegularBack in compliance
  51. 2016-01-01PicloramMonitoring, RegularBack in compliance
  52. 2016-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  53. 2016-01-01SimazineMonitoring, RegularBack in compliance
  54. 2016-01-01OxamylMonitoring, RegularBack in compliance
  55. 2016-01-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  56. 2016-01-01GlyphosateMonitoring, RegularBack in compliance
  57. 2016-01-01EndothallMonitoring, RegularBack in compliance
  58. 2016-01-01DiquatMonitoring, RegularBack in compliance
  59. 2016-01-01DalaponMonitoring, RegularBack in compliance
  60. 2016-01-01ToxapheneMonitoring, RegularBack in compliance
  61. 2016-01-01MethoxychlorMonitoring, RegularBack in compliance
  62. 2016-01-01Bhc-GammaMonitoring, RegularBack in compliance
  63. 2016-01-01EndrinMonitoring, RegularBack in compliance
  64. 2016-01-01StyreneMonitoring, RegularBack in compliance
  65. 2016-01-01EthylbenzeneMonitoring, RegularBack in compliance
  66. 2016-01-01TolueneMonitoring, RegularBack in compliance
  67. 2016-01-01BenzeneMonitoring, RegularBack in compliance
  68. 2016-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  69. 2016-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  70. 2016-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  71. 2016-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  72. 2016-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  73. 2016-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  74. 2016-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  75. 2016-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  76. 2016-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  77. 2016-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  78. 2016-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  79. 2016-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  80. 2016-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  81. 2016-01-01DichloromethaneMonitoring, RegularBack in compliance
  82. 2016-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  83. 2016-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  84. 2016-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  85. 2016-01-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  86. 2016-01-01Combined UraniumMonitoring, RegularBack in compliance
  87. 2016-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  88. 2015-10-01ChlordaneMonitoring, RegularBack in compliance
  89. 2015-10-01Ethylene DibromideMonitoring, RegularBack in compliance
  90. 2015-10-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  91. 2015-10-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  92. 2015-10-01PentachlorophenolMonitoring, RegularBack in compliance
  93. 2015-10-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  94. 2015-10-01HexachlorobenzeneMonitoring, RegularBack in compliance
  95. 2015-10-012, 4, 5-TpMonitoring, RegularBack in compliance
  96. 2015-10-012, 4-DMonitoring, RegularBack in compliance
  97. 2015-10-01Heptachlor epoxideMonitoring, RegularBack in compliance
  98. 2015-10-01HeptachlorMonitoring, RegularBack in compliance
  99. 2015-10-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  100. 2015-10-01LassoMonitoring, RegularBack in compliance
  101. 2015-10-01AtrazineMonitoring, RegularBack in compliance
  102. 2015-10-01CarbofuranMonitoring, RegularBack in compliance
  103. 2015-10-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  104. 2015-10-01DinosebMonitoring, RegularBack in compliance
  105. 2015-10-01PicloramMonitoring, RegularBack in compliance
  106. 2015-10-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  107. 2015-10-01SimazineMonitoring, RegularBack in compliance
  108. 2015-10-01OxamylMonitoring, RegularBack in compliance
  109. 2015-10-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  110. 2015-10-01GlyphosateMonitoring, RegularBack in compliance
  111. 2015-10-01EndothallMonitoring, RegularBack in compliance
  112. 2015-10-01DiquatMonitoring, RegularBack in compliance
  113. 2015-10-01DalaponMonitoring, RegularBack in compliance
  114. 2015-10-01ToxapheneMonitoring, RegularBack in compliance
  115. 2015-10-01MethoxychlorMonitoring, RegularBack in compliance
  116. 2015-10-01Bhc-GammaMonitoring, RegularBack in compliance
  117. 2015-10-01EndrinMonitoring, RegularBack in compliance
  118. 2015-10-01StyreneMonitoring, RegularBack in compliance
  119. 2015-10-01EthylbenzeneMonitoring, RegularBack in compliance
  120. 2015-10-01TolueneMonitoring, RegularBack in compliance
  121. 2015-10-01BenzeneMonitoring, RegularBack in compliance
  122. 2015-10-01ChlorobenzeneMonitoring, RegularBack in compliance
  123. 2015-10-01TetrachloroethyleneMonitoring, RegularBack in compliance
  124. 2015-10-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  125. 2015-10-01TrichloroethyleneMonitoring, RegularBack in compliance
  126. 2015-10-011,2-DichloropropaneMonitoring, RegularBack in compliance
  127. 2015-10-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  128. 2015-10-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  129. 2015-10-011,2-DichloroethaneMonitoring, RegularBack in compliance
  130. 2015-10-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  131. 2015-10-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  132. 2015-10-01Vinyl chlorideMonitoring, RegularBack in compliance
  133. 2015-10-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  134. 2015-10-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  135. 2015-10-01DichloromethaneMonitoring, RegularBack in compliance
  136. 2015-10-01Xylenes, TotalMonitoring, RegularBack in compliance
  137. 2015-10-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  138. 2015-10-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  139. 2015-10-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  140. 2015-10-01Combined UraniumMonitoring, RegularBack in compliance
  141. 2015-10-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  142. 2015-08-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  143. 2015-07-17E. ColiMonitoring, Source Water (GWR)Back in compliance
  144. 2015-07-01Coliform (TCR)Monitoring, Repeat Major (TCR)Back in compliance
  145. 2015-01-01Di(2-ethylhexyl) phthalateMCL, Single Samplemeasured 0.0130 MG/L · limit 0.006000 MG/LBack in compliance
  146. 2014-10-01Di(2-ethylhexyl) phthalateMCL, Single Samplemeasured 0.0130 MG/L · limit 0.006000 MG/LBack in compliance
  147. 2013-10-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  148. 2013-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  149. 2012-11-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  150. 2012-10-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  151. 2011-09-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  152. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served2,850
Service connections600
Water sourceGroundwater
System typeCommunity Water System
OwnerNative American
StatusActive
CityFort Hall
EPA ZIP on file83203

Areas served

  • Fort Hall

Reading this record

Fort Hall is a community water system that draws from groundwater and serves about 2,850 people in Fort Hall, Idaho. 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.