Community Water System · PWSID OK1021206

Perry Water & Light Dept

Serves 5,230 peopleSurface WaterOwner: Local GovernmentPerry, Oklahoma
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 1979: 343 violations. 45 over the limit · 30 treatment lapses · 239 missed or late tests · 29 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.

45Over the limit
30Treatment lapse1 open
239Missed or late test
29Notice or report14 open

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

The record, year by year

1979 · Missed or late test: 31980 · Over the limit: 11980 · Missed or late test: 101980 · Missed or late test: 1019801982 · Missed or late test: 1198519901991 · Over the limit: 11992 · Missed or late test: 11993 · Over the limit: 119951998 · Missed or late test: 120002004 · Over the limit: 32004 · Treatment lapse: 12005 · Over the limit: 52005 · Treatment lapse: 420052006 · Over the limit: 42006 · Treatment lapse: 42007 · Over the limit: 62007 · Treatment lapse: 42008 · Over the limit: 82008 · Over the limit: 82008 · Treatment lapse: 22009 · Over the limit: 52009 · Treatment lapse: 22009 · Missed or late test: 12010 · Over the limit: 420102011 · Over the limit: 12012 · Over the limit: 12014 · Missed or late test: 212014 · Missed or late test: 212014 · Missed or late test: 212014 · Missed or late test: 212015 · Over the limit: 120152016 · Missed or late test: 72016 · Missed or late test: 72017 · Notice or report: 12018 · Missed or late test: 42019 · Missed or late test: 272019 · Missed or late test: 272019 · Missed or late test: 272019 · Missed or late test: 272019 · Missed or late test: 272020 · Missed or late test: 232020 · Missed or late test: 232020 · Missed or late test: 232020 · Missed or late test: 232020 · Notice or report: 92020 · Notice or report: 920202021 · Treatment lapse: 12021 · Missed or late test: 442021 · Missed or late test: 442021 · Missed or late test: 442021 · Missed or late test: 442021 · Missed or late test: 442021 · Missed or late test: 442021 · Missed or late test: 442021 · Missed or late test: 442021 · Notice or report: 172021 · Notice or report: 172021 · Notice or report: 172022 · Treatment lapse: 42022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Missed or late test: 442022 · Notice or report: 12023 · Treatment lapse: 42023 · Missed or late test: 392023 · Missed or late test: 392023 · Missed or late test: 392023 · Missed or late test: 392023 · Missed or late test: 392023 · Missed or late test: 392023 · Missed or late test: 392024 · Over the limit: 12024 · Treatment lapse: 42024 · Missed or late test: 132024 · Missed or late test: 132024 · Missed or late test: 132024 · Notice or report: 12025 · Over the limit: 32025
One square ≈ 6 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
13% over the limit · 459% treatment lapse · 3070% missed or late test · 2398% notice or report · 29

Across Oklahoma, 73% of violations are missed or late tests and 19% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Trihalomethanes (TTHM)ChloriteTotal Haloacetic Acids (HAA5)Turbidity2025-07-01 · Trihalomethanes (TTHM): measured 0.0820 MG/L vs limit 0.0800 MG/L (1.0×)2025-04-01 · Trihalomethanes (TTHM): measured 0.0860 MG/L vs limit 0.0800 MG/L (1.1×)2025-04-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2024-10-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2015-08-01 · Chlorite: measured 1.40 MG/L vs limit 1.00 MG/L (1.4×)2012-10-01 · Trihalomethanes (TTHM): measured 0.0810 MG/L vs limit 0.0800 MG/L (1.0×)2011-01-01 · Trihalomethanes (TTHM): measured 0.0990 MG/L vs limit 0.0800 MG/L (1.2×)2010-10-01 · Trihalomethanes (TTHM): measured 0.1010 MG/L vs limit 0.0800 MG/L (1.3×)2010-04-01 · Trihalomethanes (TTHM): measured 0.1160 MG/L vs limit 0.0800 MG/L (1.4×)2010-01-01 · Trihalomethanes (TTHM): measured 0.1060 MG/L vs limit 0.0800 MG/L (1.3×)2009-10-01 · Trihalomethanes (TTHM): measured 0.1110 MG/L vs limit 0.0800 MG/L (1.4×)2009-07-01 · Trihalomethanes (TTHM): measured 0.1120 MG/L vs limit 0.0800 MG/L (1.4×)2009-04-01 · Trihalomethanes (TTHM): measured 0.1300 MG/L vs limit 0.0800 MG/L (1.6×)2009-01-01 · Total Haloacetic Acids (HAA5): measured 0.0650 MG/L vs limit 0.0600 MG/L (1.1×)2009-01-01 · Trihalomethanes (TTHM): measured 0.1290 MG/L vs limit 0.0800 MG/L (1.6×)2008-10-01 · Total Haloacetic Acids (HAA5): measured 0.0660 MG/L vs limit 0.0600 MG/L (1.1×)2008-10-01 · Trihalomethanes (TTHM): measured 0.1280 MG/L vs limit 0.0800 MG/L (1.6×)2008-07-01 · Total Haloacetic Acids (HAA5): measured 0.0640 MG/L vs limit 0.0600 MG/L (1.1×)2008-07-01 · Trihalomethanes (TTHM): measured 0.1230 MG/L vs limit 0.0800 MG/L (1.5×)2008-04-01 · Total Haloacetic Acids (HAA5): measured 0.0700 MG/L vs limit 0.0600 MG/L (1.2×)2008-04-01 · Trihalomethanes (TTHM): measured 0.1330 MG/L vs limit 0.0800 MG/L (1.7×)2008-01-01 · Total Haloacetic Acids (HAA5): measured 0.0740 MG/L vs limit 0.0600 MG/L (1.2×)2008-01-01 · Trihalomethanes (TTHM): measured 0.1380 MG/L vs limit 0.0800 MG/L (1.7×)2007-10-01 · Total Haloacetic Acids (HAA5): measured 0.0860 MG/L vs limit 0.0600 MG/L (1.4×)2007-10-01 · Trihalomethanes (TTHM): measured 0.1380 MG/L vs limit 0.0800 MG/L (1.7×)2007-07-01 · Total Haloacetic Acids (HAA5): measured 0.0810 MG/L vs limit 0.0600 MG/L (1.4×)2007-07-01 · Trihalomethanes (TTHM): measured 0.1480 MG/L vs limit 0.0800 MG/L (1.8×)2007-04-01 · Trihalomethanes (TTHM): measured 0.1400 MG/L vs limit 0.0800 MG/L (1.8×)2007-01-01 · Trihalomethanes (TTHM): measured 0.1410 MG/L vs limit 0.0800 MG/L (1.8×)2006-10-01 · Trihalomethanes (TTHM): measured 0.1360 MG/L vs limit 0.0800 MG/L (1.7×)2006-07-01 · Trihalomethanes (TTHM): measured 0.1370 MG/L vs limit 0.0800 MG/L (1.7×)2006-04-01 · Trihalomethanes (TTHM): measured 0.1220 MG/L vs limit 0.0800 MG/L (1.5×)2006-01-01 · Trihalomethanes (TTHM): measured 0.1200 MG/L vs limit 0.0800 MG/L (1.5×)2005-10-01 · Trihalomethanes (TTHM): measured 0.1170 vs limit 0.0800 (1.5×)2005-07-01 · Trihalomethanes (TTHM): measured 0.1300 vs limit 0.0800 (1.6×)2005-04-01 · Trihalomethanes (TTHM): measured 0.1100 vs limit 0.0800 (1.4×)2005-01-01 · Trihalomethanes (TTHM): measured 0.1330 vs limit 0.0800 (1.7×)2005-01-01 · Total Haloacetic Acids (HAA5): measured 0.0650 vs limit 0.0600 (1.1×)2004-04-01 · Trihalomethanes (TTHM): measured 0.0870 vs limit 0.0800 (1.1×)1993-01-01 · Turbidity: measured 1.70 vs limit 1.00 (1.7×)
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 4 results on file · action level 15 ppb

6 ppb
0 ppb
0 ppb
0 ppb

Open now (15)

  1. 2024-10-17Lead service line inventoryRPTOpen
  2. 2024-10-17Lead service line inventoryTTOpen
  3. 2021-03-17Public Notice ×3PN Violation for NPDWR ViolationOpen
  4. 2021-01-26Public Notice ×2PN Violation for NPDWR ViolationOpen
  5. 2020-12-27Public Notice ×2PN Violation for NPDWR ViolationOpen
  6. 2020-12-01Public Notice ×4PN Violation for NPDWR ViolationOpen
  7. 2020-10-06Public Notice ×2PN Violation for NPDWR ViolationOpen

Every violation on record

  1. 2025-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0820 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  2. 2025-04-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0860 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  3. 2024-12-30Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  4. 2024-11-01ChloriteMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2024-11-01Chlorine dioxideMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  6. 2024-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  7. 2024-10-17Lead service line inventoryRPTOpen
  8. 2024-10-17Lead service line inventoryTTOpen
  9. 2024-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0840 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  10. 2024-10-01Chlorine dioxideMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  11. 2024-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  12. 2024-08-01ChloriteMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  13. 2024-08-01Chlorine dioxideMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  14. 2024-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  15. 2024-07-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.9300 RATIOBack in compliance
  16. 2024-07-01Revised Total Coliform RuleMONBack in compliance
  17. 2024-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  18. 2024-05-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  19. 2024-04-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.1700 RATIOBack in compliance
  20. 2024-02-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  21. 2024-01-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.7100 RATIOBack in compliance
  22. 2023-11-01Revised Total Coliform RuleMONBack in compliance
  23. 2023-11-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  24. 2023-10-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.6300 RATIOPeriod ended · no return to compliance on file
  25. 2023-10-01Carbon, Total ×2Monitoring and Reporting (DBP)Back in compliance
Show the other 279 entries
  1. 2023-10-01Carbon, TotalMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2023-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  3. 2023-10-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  4. 2023-10-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  5. 2023-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  6. 2023-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  7. 2023-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  8. 2023-09-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  9. 2023-08-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  10. 2023-07-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.7100 RATIOPeriod ended · no return to compliance on file
  11. 2023-07-01Chlorine ×2Monitoring and Reporting (DBP)Back in compliance
  12. 2023-07-01Revised Total Coliform RuleMONBack in compliance
  13. 2023-07-01Carbon, Total ×2Monitoring and Reporting (DBP)Back in compliance
  14. 2023-07-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  15. 2023-06-01Revised Total Coliform RuleMONBack in compliance
  16. 2023-06-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  17. 2023-05-01Chlorine dioxideMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  18. 2023-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  19. 2023-04-01Carbon, Total ×2Monitoring and Reporting (DBP)Back in compliance
  20. 2023-04-01Chlorine ×2Monitoring and Reporting (DBP)Back in compliance
  21. 2023-04-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.3900 RATIOPeriod ended · no return to compliance on file
  22. 2023-04-01Revised Total Coliform RuleMONBack in compliance
  23. 2023-04-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  24. 2023-04-01Chlorine dioxideMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  25. 2023-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
  26. 2023-03-01Revised Total Coliform RuleMONBack in compliance
  27. 2023-03-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  28. 2023-02-01Revised Total Coliform RuleMONBack in compliance
  29. 2023-01-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.5600 RATIOPeriod ended · no return to compliance on file
  30. 2023-01-01Chlorine ×2Monitoring and Reporting (DBP)Back in compliance
  31. 2023-01-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  32. 2023-01-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  33. 2023-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  34. 2022-12-01Revised Total Coliform RuleMONBack in compliance
  35. 2022-12-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  36. 2022-11-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  37. 2022-11-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  38. 2022-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  39. 2022-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  40. 2022-10-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.5000 RATIOPeriod ended · no return to compliance on file
  41. 2022-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  42. 2022-10-01Carbon, Total ×2Monitoring and Reporting (DBP)Back in compliance
  43. 2022-10-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  44. 2022-10-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  45. 2022-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  46. 2022-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  47. 2022-09-01Revised Total Coliform RuleMONBack in compliance
  48. 2022-09-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  49. 2022-09-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  50. 2022-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  51. 2022-08-01Revised Total Coliform RuleMONBack in compliance
  52. 2022-08-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  53. 2022-08-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  54. 2022-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  55. 2022-07-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.3600 RATIOPeriod ended · no return to compliance on file
  56. 2022-07-01Carbon, Total ×6Monitoring and Reporting (DBP)Back in compliance
  57. 2022-07-01Chlorine ×2Monitoring and Reporting (DBP)Back in compliance
  58. 2022-07-01Revised Total Coliform RuleMONBack in compliance
  59. 2022-07-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  60. 2022-06-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  61. 2022-06-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  62. 2022-06-01Revised Total Coliform RuleMONBack in compliance
  63. 2022-06-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  64. 2022-04-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.3600 RATIOPeriod ended · no return to compliance on file
  65. 2022-03-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  66. 2022-03-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  67. 2022-03-01Revised Total Coliform RuleMONBack in compliance
  68. 2022-03-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  69. 2022-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  70. 2022-02-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  71. 2022-02-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  72. 2022-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  73. 2022-01-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.1900 RATIOPeriod ended · no return to compliance on file
  74. 2022-01-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  75. 2022-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  76. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  77. 2021-12-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  78. 2021-12-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  79. 2021-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  80. 2021-11-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  81. 2021-11-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  82. 2021-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  83. 2021-10-01Carbon, Total ×6Monitoring and Reporting (DBP)Back in compliance
  84. 2021-10-01Chlorine ×2Monitoring and Reporting (DBP)Back in compliance
  85. 2021-10-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  86. 2021-10-01Revised Total Coliform RuleMONBack in compliance
  87. 2021-10-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  88. 2021-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  89. 2021-09-29Public Notice ×4PN Violation for NPDWR ViolationBack in compliance
  90. 2021-09-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  91. 2021-09-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  92. 2021-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  93. 2021-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  94. 2021-08-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  95. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  96. 2021-07-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  97. 2021-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  98. 2021-06-28Public Notice ×7PN Violation for NPDWR ViolationBack in compliance
  99. 2021-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  100. 2021-06-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  101. 2021-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  102. 2021-05-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  103. 2021-04-01Revised Total Coliform RuleMONBack in compliance
  104. 2021-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  105. 2021-04-01Carbon, Total ×2Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  106. 2021-04-01ChloriteMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  107. 2021-04-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  108. 2021-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  109. 2021-03-17Public Notice ×3PN Violation for NPDWR ViolationOpen
  110. 2021-03-01ChloriteMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  111. 2021-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  112. 2021-03-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  113. 2021-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  114. 2021-02-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  115. 2021-01-26Public Notice ×2PN Violation for NPDWR ViolationOpen
  116. 2021-01-01Nitrate-NitriteMonitoring, RegularBack in compliance
  117. 2021-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  118. 2021-01-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  119. 2020-12-27Public Notice ×2PN Violation for NPDWR ViolationOpen
  120. 2020-12-01Public Notice ×4PN Violation for NPDWR ViolationOpen
  121. 2020-12-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  122. 2020-12-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  123. 2020-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  124. 2020-12-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  125. 2020-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  126. 2020-11-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  127. 2020-10-06Public Notice ×2PN Violation for NPDWR ViolationOpen
  128. 2020-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  129. 2020-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  130. 2020-10-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  131. 2020-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  132. 2020-09-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  133. 2020-08-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  134. 2020-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  135. 2020-07-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  136. 2020-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  137. 2020-06-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  138. 2020-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  139. 2020-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  140. 2020-03-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  141. 2020-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  142. 2020-02-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  143. 2020-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  144. 2020-01-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  145. 2020-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  146. 2019-12-30Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  147. 2019-12-01Revised Total Coliform RuleMONBack in compliance
  148. 2019-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  149. 2019-12-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  150. 2019-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  151. 2019-11-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  152. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  153. 2019-10-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  154. 2019-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  155. 2019-09-29Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  156. 2019-09-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  157. 2019-09-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  158. 2019-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  159. 2019-08-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  160. 2019-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  161. 2019-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  162. 2019-07-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  163. 2019-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  164. 2019-06-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  165. 2019-05-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  166. 2019-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  167. 2019-04-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  168. 2019-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  169. 2019-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  170. 2019-02-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  171. 2019-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  172. 2019-01-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  173. 2018-12-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  174. 2018-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  175. 2018-11-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  176. 2018-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  177. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  178. 2016-12-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  179. 2016-11-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  180. 2016-10-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  181. 2016-09-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  182. 2016-08-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  183. 2016-07-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  184. 2016-01-01Nitrate-NitriteMonitoring, RegularBack in compliance
  185. 2015-08-01ChloriteMCL, Averagemeasured 1.40 MG/L · limit 1.00 MG/LBack in compliance
  186. 2014-01-01StyreneMonitoring, RegularBack in compliance
  187. 2014-01-01EthylbenzeneMonitoring, RegularBack in compliance
  188. 2014-01-01TolueneMonitoring, RegularBack in compliance
  189. 2014-01-01BenzeneMonitoring, RegularBack in compliance
  190. 2014-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  191. 2014-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  192. 2014-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  193. 2014-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  194. 2014-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  195. 2014-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  196. 2014-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  197. 2014-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  198. 2014-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  199. 2014-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  200. 2014-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  201. 2014-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  202. 2014-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  203. 2014-01-01DichloromethaneMonitoring, RegularBack in compliance
  204. 2014-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  205. 2014-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  206. 2014-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  207. 2012-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0810 MG/L · limit 0.0800 MG/LBack in compliance
  208. 2011-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0990 MG/L · limit 0.0800 MG/LBack in compliance
  209. 2010-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1010 MG/L · limit 0.0800 MG/LBack in compliance
  210. 2010-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1130 MG/LBack in compliance
  211. 2010-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1160 MG/L · limit 0.0800 MG/LBack in compliance
  212. 2010-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1060 MG/L · limit 0.0800 MG/LBack in compliance
  213. 2009-10-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  214. 2009-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1110 MG/L · limit 0.0800 MG/LBack in compliance
  215. 2009-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1120 MG/L · limit 0.0800 MG/LBack in compliance
  216. 2009-04-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  217. 2009-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1300 MG/L · limit 0.0800 MG/LBack in compliance
  218. 2009-01-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  219. 2009-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0650 MG/L · limit 0.0600 MG/LBack in compliance
  220. 2009-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1290 MG/L · limit 0.0800 MG/LBack in compliance
  221. 2008-10-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  222. 2008-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0660 MG/L · limit 0.0600 MG/LBack in compliance
  223. 2008-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1280 MG/L · limit 0.0800 MG/LBack in compliance
  224. 2008-07-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  225. 2008-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0640 MG/L · limit 0.0600 MG/LBack in compliance
  226. 2008-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1230 MG/L · limit 0.0800 MG/LBack in compliance
  227. 2008-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0700 MG/L · limit 0.0600 MG/LBack in compliance
  228. 2008-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1330 MG/L · limit 0.0800 MG/LBack in compliance
  229. 2008-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0740 MG/L · limit 0.0600 MG/LBack in compliance
  230. 2008-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1380 MG/L · limit 0.0800 MG/LBack in compliance
  231. 2007-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0860 MG/L · limit 0.0600 MG/LBack in compliance
  232. 2007-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1380 MG/L · limit 0.0800 MG/LBack in compliance
  233. 2007-07-01Carbon, Total ×2Treatment Technique Precursor RemovalBack in compliance
  234. 2007-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0810 MG/L · limit 0.0600 MG/LBack in compliance
  235. 2007-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1480 MG/L · limit 0.0800 MG/LBack in compliance
  236. 2007-04-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  237. 2007-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1400 MG/L · limit 0.0800 MG/LBack in compliance
  238. 2007-01-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  239. 2007-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1410 MG/L · limit 0.0800 MG/LBack in compliance
  240. 2006-10-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  241. 2006-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1360 MG/L · limit 0.0800 MG/LBack in compliance
  242. 2006-07-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  243. 2006-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1370 MG/L · limit 0.0800 MG/LBack in compliance
  244. 2006-04-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  245. 2006-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1220 MG/L · limit 0.0800 MG/LBack in compliance
  246. 2006-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1200 MG/L · limit 0.0800 MG/LBack in compliance
  247. 2006-01-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  248. 2005-10-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  249. 2005-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1170 · limit 0.0800 Back in compliance
  250. 2005-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1300 · limit 0.0800 Back in compliance
  251. 2005-07-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  252. 2005-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1100 · limit 0.0800 Back in compliance
  253. 2005-04-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  254. 2005-01-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  255. 2005-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1330 · limit 0.0800 Back in compliance
  256. 2005-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0650 · limit 0.0600 Back in compliance
  257. 2004-10-01Carbon, TotalTreatment Technique Precursor RemovalBack in compliance
  258. 2004-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 127.90 Back in compliance
  259. 2004-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 101.93 Back in compliance
  260. 2004-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0870 · limit 0.0800 Back in compliance
  261. 1998-09-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  262. 1993-01-01TurbidityMCL, Averagemeasured 1.70 · limit 1.00 Back in compliance
  263. 1992-12-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  264. 1991-02-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  265. 1982-06-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  266. 1980-09-30TurbidityMonitoring, RegularBack in compliance
  267. 1980-08-31TurbidityMonitoring, RegularBack in compliance
  268. 1980-07-31TurbidityMonitoring, RegularBack in compliance
  269. 1980-06-30TurbidityMonitoring, RegularBack in compliance
  270. 1980-05-31TurbidityMonitoring, RegularBack in compliance
  271. 1980-05-31Coliform (Pre-TCR)Monitoring, Check/Repeat/ConfirmationBack in compliance
  272. 1980-05-31Coliform (Pre-TCR)MCL, Averagemeasured 9.00 · limit 1.00 Back in compliance
  273. 1980-04-30TurbidityMonitoring, RegularBack in compliance
  274. 1980-03-31TurbidityMonitoring, RegularBack in compliance
  275. 1980-02-29TurbidityMonitoring, RegularBack in compliance
  276. 1980-01-31TurbidityMonitoring, RegularBack in compliance
  277. 1979-12-31TurbidityMonitoring, RegularBack in compliance
  278. 1979-11-30TurbidityMonitoring, RegularBack in compliance
  279. 1979-10-31TurbidityMonitoring, RegularBack in compliance

System details

Population served5,230
Service connections2,583
Water sourceSurface Water
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityPerry
EPA ZIP on file73077

Areas served

  • Noble County

Reading this record

Perry Water & Light Dept is a community water system that draws from surface water and serves about 5,230 people in Perry, Oklahoma. 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.