Community Water System · PWSID MO4010468

Lilbourn Pws

Serves 902 peopleGroundwaterOwner: Local GovernmentLilbourn, Missouri
1 open treatment violation.

Open for: Groundwater Rule. 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 1999: 42 violations. 4 treatment lapses · 27 missed or late tests · 11 notices or reports. Most recent began 2025-09-23.

None of them is a measurement of contaminated water.

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

0Over the limit
4Treatment lapse1 open
27Missed or late test
11Notice or report2 open

More violations on record than 95% of active water systems in Missouri. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1999 · Notice or report: 1200020052008 · Missed or late test: 120102011 · Missed or late test: 12013 · Notice or report: 12014 · Notice or report: 12015 · Missed or late test: 32015 · Missed or late test: 320152016 · Notice or report: 12018 · Notice or report: 12019 · Notice or report: 12020 · Treatment lapse: 12020 · Notice or report: 120202021 · Missed or late test: 42021 · Missed or late test: 42022 · Treatment lapse: 12022 · Notice or report: 12023 · Treatment lapse: 22023 · Missed or late test: 12023 · Notice or report: 22024 · Missed or late test: 162024 · Missed or late test: 162024 · Missed or late test: 162024 · Missed or late test: 162024 · Missed or late test: 162024 · Missed or late test: 162024 · Missed or late test: 162024 · Missed or late test: 162025 · Missed or late test: 12025 · Notice or report: 12025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
10% treatment lapse · 464% missed or late test · 2726% notice or report · 11

Across Missouri, 54% of violations are missed or late tests and 8% 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 8 results on file · action level 15 ppb

20.4 ppb
5 ppb
3.1 ppb
2.5 ppb
2.5 ppb
2.5 ppb
2.5 ppb
0 ppb

Open now (3)

  1. 2025-09-23Groundwater RuleFailure to Consult with StateOpen
  2. 2023-08-06Groundwater RuleFailure To Address DeficiencyOpen
  3. 2023-05-08Groundwater RuleFailure to Consult with StateOpen

Every violation on record

  1. 2025-09-23Groundwater RuleFailure to Consult with StateOpen
  2. 2025-01-01Revised Total Coliform RuleMONBack in compliance
  3. 2024-11-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  4. 2024-04-01SeleniumMonitoring, RegularBack in compliance
  5. 2024-04-01Thallium, TotalMonitoring, RegularBack in compliance
  6. 2024-04-01Beryllium, TotalMonitoring, RegularBack in compliance
  7. 2024-04-01Antimony, TotalMonitoring, RegularBack in compliance
  8. 2024-04-01MercuryMonitoring, RegularBack in compliance
  9. 2024-04-01FluorideMonitoring, RegularBack in compliance
  10. 2024-04-01ChromiumMonitoring, RegularBack in compliance
  11. 2024-04-01CadmiumMonitoring, RegularBack in compliance
  12. 2024-04-01BariumMonitoring, RegularBack in compliance
  13. 2024-04-01ArsenicMonitoring, RegularBack in compliance
  14. 2024-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  15. 2024-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  16. 2024-02-01Revised Total Coliform RuleMONBack in compliance
  17. 2024-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  18. 2024-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  19. 2023-08-06Groundwater RuleFailure To Address DeficiencyOpen
  20. 2023-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  21. 2023-05-08Groundwater RuleFailure to Consult with StateOpen
  22. 2023-01-30DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
  23. 2023-01-01Revised Total Coliform RuleMONBack in compliance
  24. 2022-12-14Groundwater RuleFailure To Address DeficiencyBack in compliance
  25. 2022-09-15Groundwater RuleFailure to Consult with StateBack in compliance
Show the other 17 entries
  1. 2021-03-01Revised Total Coliform RuleMONBack in compliance
  2. 2021-02-01Revised Total Coliform RuleMONBack in compliance
  3. 2021-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  4. 2021-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  5. 2020-11-18Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2020-10-02DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
  7. 2019-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  8. 2018-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  9. 2016-05-28Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2015-08-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  11. 2015-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  12. 2015-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  13. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  14. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  15. 2011-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  16. 2008-04-01Dbp Stage 2Monitoring, Routine (IDSE)Back in compliance
  17. 1999-10-19Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served902
Service connections511
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityLilbourn
EPA ZIP on file63862-0000

Areas served

  • Lilbourn, New Madrid County

Reading this record

Lilbourn Pws is a community water system that draws from groundwater and serves about 902 people in Lilbourn, Missouri. 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.