Community Water System · PWSID OK2005510

Choctaw

Serves 3,926 peopleGroundwaterOwner: Local GovernmentChoctaw, Oklahoma
Nothing open that measures the water, but 2 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 1981: 75 violations. 5 over the limit · 68 missed or late tests · 2 notices or reports. Most recent began 2025-07-11.

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

5Over the limit
0Treatment lapse
68Missed or late test2 open
2Notice or report

More violations on record than 78% 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

1981 · Missed or late test: 11982 · Missed or late test: 11983 · Over the limit: 21983 · Missed or late test: 61983 · Missed or late test: 619851987 · Over the limit: 11989 · Over the limit: 119901991 · Missed or late test: 21992 · Over the limit: 11992 · Missed or late test: 11993 · Missed or late test: 11995 · Missed or late test: 119952000200520102012 · Notice or report: 12013 · Missed or late test: 22014 · Notice or report: 12015 · Missed or late test: 1201520202021 · Missed or late test: 22023 · Missed or late test: 22024 · Missed or late test: 172024 · Missed or late test: 172024 · Missed or late test: 172024 · Missed or late test: 172024 · Missed or late test: 172024 · Missed or late test: 172025 · Missed or late test: 312025 · Missed or late test: 312025 · Missed or late test: 312025 · Missed or late test: 312025 · Missed or late test: 312025 · Missed or late test: 312025 · Missed or late test: 312025 · Missed or late test: 312025 · Missed or late test: 312025 · Missed or late test: 312025 · Missed or late test: 312025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
7% over the limit · 591% missed or late test · 683% notice or report · 2

Across Oklahoma, 73% of violations are missed or late tests and 19% 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 3 results on file · action level 15 ppb

11.4 ppb
0 ppb
0 ppb

Open now (2)

  1. 2025-07-11E. ColiMonitoring, Source Water (GWR)Open
  2. 2024-06-20E. ColiMonitoring, Source Water (GWR)Open

Every violation on record

  1. 2025-07-11E. ColiMonitoring, Source Water (GWR)Open
  2. 2025-06-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  3. 2025-04-01ChlordaneMonitoring, RegularBack in compliance
  4. 2025-04-01Ethylene DibromideMonitoring, RegularBack in compliance
  5. 2025-04-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  6. 2025-04-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  7. 2025-04-01PentachlorophenolMonitoring, RegularBack in compliance
  8. 2025-04-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  9. 2025-04-01HexachlorobenzeneMonitoring, RegularBack in compliance
  10. 2025-04-012, 4, 5-TpMonitoring, RegularBack in compliance
  11. 2025-04-012, 4-DMonitoring, RegularBack in compliance
  12. 2025-04-01Heptachlor epoxideMonitoring, RegularBack in compliance
  13. 2025-04-01HeptachlorMonitoring, RegularBack in compliance
  14. 2025-04-01LassoMonitoring, RegularBack in compliance
  15. 2025-04-01AtrazineMonitoring, RegularBack in compliance
  16. 2025-04-01CarbofuranMonitoring, RegularBack in compliance
  17. 2025-04-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  18. 2025-04-01DinosebMonitoring, RegularBack in compliance
  19. 2025-04-01PicloramMonitoring, RegularBack in compliance
  20. 2025-04-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  21. 2025-04-01SimazineMonitoring, RegularBack in compliance
  22. 2025-04-01OxamylMonitoring, RegularBack in compliance
  23. 2025-04-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  24. 2025-04-01GlyphosateMonitoring, RegularBack in compliance
  25. 2025-04-01EndothallMonitoring, RegularBack in compliance
Show the other 50 entries
  1. 2025-04-01DiquatMonitoring, RegularBack in compliance
  2. 2025-04-01DalaponMonitoring, RegularBack in compliance
  3. 2025-04-01ToxapheneMonitoring, RegularBack in compliance
  4. 2025-04-01MethoxychlorMonitoring, RegularBack in compliance
  5. 2025-04-01Bhc-GammaMonitoring, RegularBack in compliance
  6. 2025-04-01EndrinMonitoring, RegularBack in compliance
  7. 2024-10-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2024-10-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2024-10-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2024-10-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2024-10-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2024-10-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2024-10-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2024-07-01HexachlorobenzeneMonitoring, RegularBack in compliance
  15. 2024-07-01Heptachlor epoxideMonitoring, RegularBack in compliance
  16. 2024-07-01HeptachlorMonitoring, RegularBack in compliance
  17. 2024-07-01MethoxychlorMonitoring, RegularBack in compliance
  18. 2024-07-01Bhc-GammaMonitoring, RegularBack in compliance
  19. 2024-07-01EndrinMonitoring, RegularBack in compliance
  20. 2024-06-20E. ColiMonitoring, Source Water (GWR)Open
  21. 2024-04-01CarbofuranMonitoring, RegularBack in compliance
  22. 2024-04-01OxamylMonitoring, RegularBack in compliance
  23. 2024-04-01GlyphosateMonitoring, RegularBack in compliance
  24. 2023-11-23E. ColiMonitoring, Source Water (GWR)Back in compliance
  25. 2023-09-27E. ColiMonitoring, Source Water (GWR)Back in compliance
  26. 2021-08-01Revised Total Coliform RuleMONBack in compliance
  27. 2021-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  28. 2015-01-01Nitrate-NitriteMonitoring, RegularBack in compliance
  29. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  30. 2013-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  31. 2013-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  32. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  33. 1995-08-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  34. 1993-08-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  35. 1992-08-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  36. 1992-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  37. 1991-12-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  38. 1991-08-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  39. 1989-06-01Coliform (Pre-TCR)MCL, Averagemeasured 13.00 Back in compliance
  40. 1987-07-01Coliform (Pre-TCR)MCL, Averagemeasured 11.00 Back in compliance
  41. 1983-12-01Coliform (Pre-TCR)Monitoring, Check/Repeat/ConfirmationBack in compliance
  42. 1983-12-01Coliform (Pre-TCR)MCL, Averagemeasured 10.00 Back in compliance
  43. 1983-07-31Coliform (Pre-TCR)Monitoring, Check/Repeat/ConfirmationBack in compliance
  44. 1983-07-31Coliform (Pre-TCR)MCL, Averagemeasured 3.00 · limit 1.00 Back in compliance
  45. 1983-06-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  46. 1983-05-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  47. 1983-04-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  48. 1983-01-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  49. 1982-11-30Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  50. 1981-07-31Coliform (Pre-TCR)Monitoring, RegularBack in compliance

System details

Population served3,926
Service connections573
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityChoctaw
EPA ZIP on file73020

Areas served

  • Oklahoma County

Reading this record

Choctaw is a community water system that draws from groundwater and serves about 3,926 people in Choctaw, 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.