Community Water System · PWSID PA4180049

Suburban Lock Haven Water Auth

Serves 9,700 peopleSurface Water PurchasedOwner: Local GovernmentMill Hall, Pennsylvania
Nothing open right now.

On record since 2011: 144 violations. 2 over the limit · 3 treatment lapses · 123 missed or late tests · 16 notices or reports. Most recent began 2024-12-01.

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

2Over the limit
3Treatment lapse
123Missed or late test
16Notice or report

More violations on record than 97% 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

200520102011 · Missed or late test: 32011 · Missed or late test: 32011 · Notice or report: 12012 · Over the limit: 12012 · Missed or late test: 22012 · Notice or report: 12013 · Missed or late test: 72013 · Missed or late test: 72013 · Missed or late test: 72013 · Missed or late test: 72013 · Notice or report: 12014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Missed or late test: 112014 · Notice or report: 12015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 242015 · Missed or late test: 2420152016 · Missed or late test: 212016 · Missed or late test: 212016 · Missed or late test: 212016 · Missed or late test: 212016 · Missed or late test: 212016 · Missed or late test: 212016 · Missed or late test: 212016 · Missed or late test: 212016 · Missed or late test: 212016 · Missed or late test: 212016 · Missed or late test: 212016 · Notice or report: 12017 · Missed or late test: 162017 · Missed or late test: 162017 · Missed or late test: 162017 · Missed or late test: 162017 · Missed or late test: 162017 · Missed or late test: 162017 · Missed or late test: 162017 · Missed or late test: 162017 · Notice or report: 12018 · Treatment lapse: 22018 · Missed or late test: 72018 · Missed or late test: 72018 · Missed or late test: 72018 · Missed or late test: 72018 · Notice or report: 62018 · Notice or report: 62018 · Notice or report: 62019 · Missed or late test: 122019 · Missed or late test: 122019 · Missed or late test: 122019 · Missed or late test: 122019 · Missed or late test: 122019 · Missed or late test: 122019 · Notice or report: 12020 · Missed or late test: 82020 · Missed or late test: 82020 · Missed or late test: 82020 · Missed or late test: 820202021 · Over the limit: 12021 · Treatment lapse: 12021 · Missed or late test: 22021 · Notice or report: 32021 · Notice or report: 32022 · Missed or late test: 42022 · Missed or late test: 42023 · Missed or late test: 42023 · Missed or late test: 42024 · Missed or late test: 22025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
1% over the limit · 22% treatment lapse · 385% missed or late test · 12311% notice or report · 16

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

7.8 ppb
5.9 ppb
1.8 ppb
1.6 ppb

Every violation on record

  1. 2024-12-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2024-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  3. 2023-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  4. 2023-07-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2023-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  6. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  7. 2022-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  8. 2022-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  9. 2022-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  10. 2022-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  11. 2021-08-22Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2021-07-12Revised Total Coliform RuleRPTBack in compliance
  13. 2021-07-12Revised Total Coliform RuleTTBack in compliance
  14. 2021-07-12Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2021-06-01Revised Total Coliform RuleMCLBack in compliance
  16. 2021-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  17. 2021-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  18. 2020-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  19. 2020-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  20. 2020-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  21. 2020-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  22. 2020-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  23. 2020-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  24. 2020-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  25. 2020-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
Show the other 119 entries
  1. 2019-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  2. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  3. 2019-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  4. 2019-10-01Revised Total Coliform RuleRPTBack in compliance
  5. 2019-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  6. 2019-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  7. 2019-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  8. 2019-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  9. 2019-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  10. 2019-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  11. 2019-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  12. 2019-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  13. 2019-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  14. 2018-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  15. 2018-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  16. 2018-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  17. 2018-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  18. 2018-09-29Public NoticePN Violation for NPDWR ViolationBack in compliance
  19. 2018-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  20. 2018-09-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  21. 2018-08-19Revised Total Coliform RuleRPTBack in compliance
  22. 2018-08-19Revised Total Coliform RuleTTBack in compliance
  23. 2018-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  24. 2018-08-01Revised Total Coliform RuleRPTBack in compliance
  25. 2018-07-22Revised Total Coliform RuleRPTBack in compliance
  26. 2018-07-22Revised Total Coliform RuleTTBack in compliance
  27. 2018-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  28. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  29. 2017-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  30. 2017-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  31. 2017-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  32. 2017-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  33. 2017-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  34. 2017-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  35. 2017-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  36. 2017-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  37. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  38. 2017-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  39. 2017-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  40. 2017-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  41. 2017-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  42. 2017-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  43. 2017-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  44. 2017-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  45. 2017-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  46. 2016-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  47. 2016-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  48. 2016-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  49. 2016-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  50. 2016-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  51. 2016-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  52. 2016-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  53. 2016-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  54. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  55. 2016-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  56. 2016-06-01Revised Total Coliform RuleMONBack in compliance
  57. 2016-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  58. 2016-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  59. 2016-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  60. 2016-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  61. 2016-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  62. 2016-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  63. 2016-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  64. 2016-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  65. 2016-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  66. 2016-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  67. 2016-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  68. 2015-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  69. 2015-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  70. 2015-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  71. 2015-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  72. 2015-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  73. 2015-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  74. 2015-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  75. 2015-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  76. 2015-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  77. 2015-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  78. 2015-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  79. 2015-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  80. 2015-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  81. 2015-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  82. 2015-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  83. 2015-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  84. 2015-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  85. 2015-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  86. 2015-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  87. 2015-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  88. 2015-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  89. 2015-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  90. 2015-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  91. 2015-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  92. 2014-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  93. 2014-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  94. 2014-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  95. 2014-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  96. 2014-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  97. 2014-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  98. 2014-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  99. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  100. 2014-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  101. 2014-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  102. 2014-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  103. 2014-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  104. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  105. 2013-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  106. 2013-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  107. 2013-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  108. 2013-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  109. 2013-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  110. 2013-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  111. 2013-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  112. 2012-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  113. 2012-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  114. 2012-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 23.00 MG/LBack in compliance
  115. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  116. 2011-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  117. 2011-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  118. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  119. 2011-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served9,700
Service connections3,301
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityMill Hall
EPA ZIP on file17751

Areas served

  • Clinton County

Reading this record

Suburban Lock Haven Water Auth is a community water system that draws from surface water purchased and serves about 9,700 people in Mill Hall, 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.