Community Water System · PWSID PA4310016

Mt Union Municipal Auth

Serves 5,801 peopleSurface WaterOwner: Local GovernmentMount Union, Pennsylvania
Nothing open that measures the water, but 9 open testing or paperwork violations.

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 2003: 170 violations. 2 over the limit · 1 treatment lapse · 102 missed or late tests · 65 notices or reports. Most recent began 2025-04-01.

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

2Over the limit
1Treatment lapse
102Missed or late test
65Notice or report9 open

More violations on record than 98% of active water systems in Pennsylvania. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2003 · Notice or report: 12004 · Notice or report: 220052006 · Notice or report: 12010 · Missed or late test: 120102011 · Missed or late test: 22011 · Notice or report: 82011 · Notice or report: 82012 · Notice or report: 372012 · Notice or report: 372012 · Notice or report: 372012 · Notice or report: 372012 · Notice or report: 372012 · Notice or report: 372012 · Notice or report: 372012 · Notice or report: 372013 · Notice or report: 12014 · Notice or report: 42015 · Missed or late test: 42015 · Notice or report: 520152016 · Missed or late test: 12016 · Notice or report: 12017 · Missed or late test: 42017 · Notice or report: 12018 · Treatment lapse: 12018 · Missed or late test: 102018 · Missed or late test: 102018 · Notice or report: 12019 · Missed or late test: 552019 · Missed or late test: 552019 · Missed or late test: 552019 · Missed or late test: 552019 · Missed or late test: 552019 · Missed or late test: 552019 · Missed or late test: 552019 · Missed or late test: 552019 · Missed or late test: 552019 · Missed or late test: 552019 · Missed or late test: 552019 · Notice or report: 12020 · Missed or late test: 220202021 · Missed or late test: 142021 · Missed or late test: 142021 · Missed or late test: 142022 · Missed or late test: 52023 · Over the limit: 12023 · Missed or late test: 12023 · Notice or report: 12024 · Over the limit: 12024 · Missed or late test: 22024 · Notice or report: 12025 · Missed or late test: 12025
One square ≈ 5 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
1% over the limit · 2<1% treatment lapse · 160% missed or late test · 10238% notice or report · 65

Across Pennsylvania, 71% 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

2.9 ppb
2.3 ppb
1 ppb
0 ppb

Open now (9)

  1. 2016-08-11Public NoticePN Violation for NPDWR ViolationOpen
  2. 2015-09-11Public Notice ×3PN Violation for NPDWR ViolationOpen
  3. 2014-07-11Public Notice ×2PN Violation for NPDWR ViolationOpen
  4. 2012-07-11Public Notice ×2PN Violation for NPDWR ViolationOpen
  5. 2011-09-11Public NoticePN Violation for NPDWR ViolationOpen

Every violation on record

  1. 2025-04-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  2. 2024-08-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2024-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0820 MG/LBack in compliance
  4. 2024-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  5. 2024-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  6. 2023-11-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2023-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0810 MG/LBack in compliance
  8. 2023-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  9. 2022-05-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  10. 2022-04-01Carbon, TotalMonitoring and Reporting (DBP)Back in compliance
  11. 2022-01-01NitriteMonitoring, RegularBack in compliance
  12. 2022-01-01NitrateMonitoring, RegularBack in compliance
  13. 2022-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  14. 2021-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  15. 2021-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  16. 2021-01-01Thallium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2021-01-01Beryllium, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2021-01-01Antimony, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2021-01-01SeleniumMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2021-01-01NickelMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2021-01-01MercuryMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2021-01-01FluorideMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2021-01-01CyanideMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2021-01-01ChromiumMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2021-01-01CadmiumMonitoring, RegularPeriod ended · no return to compliance on file
Show the other 103 entries
  1. 2021-01-01BariumMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2021-01-01ArsenicMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2020-07-01Carbon, TotalMonitoring and Reporting (DBP)Back in compliance
  4. 2020-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  5. 2019-07-01StyreneMonitoring, RegularBack in compliance
  6. 2019-07-01EthylbenzeneMonitoring, RegularBack in compliance
  7. 2019-07-01TolueneMonitoring, RegularBack in compliance
  8. 2019-07-01BenzeneMonitoring, RegularBack in compliance
  9. 2019-07-01ChlorobenzeneMonitoring, RegularBack in compliance
  10. 2019-07-01TetrachloroethyleneMonitoring, RegularBack in compliance
  11. 2019-07-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  12. 2019-07-01TrichloroethyleneMonitoring, RegularBack in compliance
  13. 2019-07-011,2-DichloropropaneMonitoring, RegularBack in compliance
  14. 2019-07-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  15. 2019-07-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  16. 2019-07-011,2-DichloroethaneMonitoring, RegularBack in compliance
  17. 2019-07-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  18. 2019-07-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  19. 2019-07-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  20. 2019-07-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  21. 2019-07-01DichloromethaneMonitoring, RegularBack in compliance
  22. 2019-07-01Xylenes, TotalMonitoring, RegularBack in compliance
  23. 2019-07-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  24. 2019-07-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  25. 2019-07-01ChlordaneMonitoring, RegularBack in compliance
  26. 2019-07-01Ethylene DibromideMonitoring, RegularBack in compliance
  27. 2019-07-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  28. 2019-07-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  29. 2019-07-01PentachlorophenolMonitoring, RegularBack in compliance
  30. 2019-07-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  31. 2019-07-01HexachlorobenzeneMonitoring, RegularBack in compliance
  32. 2019-07-012, 4, 5-TpMonitoring, RegularBack in compliance
  33. 2019-07-012, 4-DMonitoring, RegularBack in compliance
  34. 2019-07-01Heptachlor epoxideMonitoring, RegularBack in compliance
  35. 2019-07-01HeptachlorMonitoring, RegularBack in compliance
  36. 2019-07-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  37. 2019-07-01LassoMonitoring, RegularBack in compliance
  38. 2019-07-01AtrazineMonitoring, RegularBack in compliance
  39. 2019-07-01CarbofuranMonitoring, RegularBack in compliance
  40. 2019-07-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  41. 2019-07-01DinosebMonitoring, RegularBack in compliance
  42. 2019-07-01PicloramMonitoring, RegularBack in compliance
  43. 2019-07-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  44. 2019-07-01SimazineMonitoring, RegularBack in compliance
  45. 2019-07-01OxamylMonitoring, RegularBack in compliance
  46. 2019-07-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  47. 2019-07-01GlyphosateMonitoring, RegularBack in compliance
  48. 2019-07-01EndothallMonitoring, RegularBack in compliance
  49. 2019-07-01DiquatMonitoring, RegularBack in compliance
  50. 2019-07-01DalaponMonitoring, RegularBack in compliance
  51. 2019-07-01ToxapheneMonitoring, RegularBack in compliance
  52. 2019-07-01MethoxychlorMonitoring, RegularBack in compliance
  53. 2019-07-01Bhc-GammaMonitoring, RegularBack in compliance
  54. 2019-07-01EndrinMonitoring, RegularBack in compliance
  55. 2019-07-01Radium-228Monitoring, RegularBack in compliance
  56. 2019-07-01Radium-226Monitoring, RegularBack in compliance
  57. 2019-07-01Combined UraniumMonitoring, RegularBack in compliance
  58. 2019-07-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  59. 2019-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  60. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  61. 2018-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  62. 2018-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  63. 2018-07-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  64. 2018-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  65. 2018-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  66. 2018-05-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  67. 2018-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  68. 2018-05-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  69. 2018-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  70. 2018-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  71. 2018-02-01Revised Total Coliform RuleMONBack in compliance
  72. 2018-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  73. 2017-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  74. 2017-04-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  75. 2017-03-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  76. 2017-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  77. 2017-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  78. 2016-08-11Public NoticePN Violation for NPDWR ViolationOpen
  79. 2016-01-01Carbon, TotalMonitoring and Reporting (DBP)Back in compliance
  80. 2015-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  81. 2015-09-11Public Notice ×3PN Violation for NPDWR ViolationOpen
  82. 2015-07-11Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  83. 2015-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  84. 2015-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  85. 2015-07-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  86. 2014-07-11Public Notice ×2PN Violation for NPDWR ViolationOpen
  87. 2014-04-11Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  88. 2013-08-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  89. 2012-07-11Public Notice ×2PN Violation for NPDWR ViolationOpen
  90. 2012-06-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  91. 2012-04-11Public Notice ×34PN Violation for NPDWR ViolationBack in compliance
  92. 2011-09-11Public NoticePN Violation for NPDWR ViolationOpen
  93. 2011-09-10Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  94. 2011-08-10Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  95. 2011-07-18E. ColiMonitoring, Source Water (GWR)Back in compliance
  96. 2011-07-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  97. 2011-05-07E. ColiMonitoring, Source Water (GWR)Back in compliance
  98. 2011-04-11Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  99. 2010-08-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  100. 2006-09-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  101. 2004-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  102. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  103. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served5,801
Service connections2,043
Water sourceSurface Water
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityMount Union
EPA ZIP on file17066

Areas served

  • Huntingdon County

Reading this record

Mt Union Municipal Auth is a community water system that draws from surface water and serves about 5,801 people in Mount Union, Pennsylvania. 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.