Community Water System · PWSID IN5224006

Oldenburg Water Works

Serves 880 peopleSurface Water PurchasedOwner: Local GovernmentOldenburg, Indiana
Nothing open that measures the water, but 6 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 1994: 36 violations. 1 treatment lapse · 17 missed or late tests · 18 notices or reports. Most recent began 2025-07-01.

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
1Treatment lapse
17Missed or late test1 open
18Notice or report5 open

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

The record, year by year

1994 · Missed or late test: 21994 · Missed or late test: 21995 · Missed or late test: 1199520002002 · Notice or report: 120052009 · Notice or report: 120102015 · Notice or report: 120152016 · Notice or report: 22016 · Notice or report: 22017 · Notice or report: 12018 · Notice or report: 22018 · Notice or report: 22019 · Missed or late test: 62019 · Missed or late test: 62019 · Missed or late test: 62019 · Missed or late test: 62019 · Missed or late test: 62019 · Missed or late test: 62019 · Notice or report: 22019 · Notice or report: 22020 · Missed or late test: 22020 · Missed or late test: 22020 · Notice or report: 120202021 · Missed or late test: 12022 · Missed or late test: 12022 · Notice or report: 12023 · Notice or report: 22023 · Notice or report: 22024 · Treatment lapse: 12024 · Notice or report: 32024 · Notice or report: 32024 · Notice or report: 32025 · Missed or late test: 42025 · Missed or late test: 42025 · Missed or late test: 42025 · Missed or late test: 42025 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
3% treatment lapse · 147% missed or late test · 1750% notice or report · 18

Across Indiana, 78% of violations are missed or late tests and 3% 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

3.7 ppb
0.73 ppb
0 ppb

Open now (6)

  1. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  2. 2024-10-10Consumer Confidence RuleCCR Inadequate ReportingOpen
  3. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  4. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  5. 2023-01-01Consumer Confidence RuleCCR Inadequate ReportingOpen
  6. 2022-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen

Every violation on record

  1. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  2. 2025-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  3. 2025-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  4. 2025-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2025-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  6. 2024-10-17Lead service line inventoryRPTBack in compliance
  7. 2024-10-17Lead service line inventoryTTBack in compliance
  8. 2024-10-10Consumer Confidence RuleCCR Inadequate ReportingOpen
  9. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  10. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  11. 2023-01-01Consumer Confidence RuleCCR Inadequate ReportingOpen
  12. 2022-01-11Revised Total Coliform RuleRPTBack in compliance
  13. 2022-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  14. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  15. 2020-10-30Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  16. 2020-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  17. 2020-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  18. 2019-12-01Revised Total Coliform RuleMONBack in compliance
  19. 2019-10-01Revised Total Coliform RuleRPTBack in compliance
  20. 2019-06-01Revised Total Coliform RuleRPTBack in compliance
  21. 2019-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  22. 2019-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  23. 2019-02-01Revised Total Coliform RuleMONBack in compliance
  24. 2019-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  25. 2019-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
Show the other 11 entries
  1. 2018-11-01Revised Total Coliform RuleRPTBack in compliance
  2. 2018-01-01Revised Total Coliform RuleRPTBack in compliance
  3. 2017-09-01Revised Total Coliform RuleRPTBack in compliance
  4. 2016-12-01Revised Total Coliform RuleRPTBack in compliance
  5. 2016-10-01Revised Total Coliform RuleRPTBack in compliance
  6. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  7. 2009-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  8. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  9. 1995-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  10. 1994-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  11. 1994-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served880
Service connections352
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityOldenburg
EPA ZIP on file47036

Areas served

  • Laurel, Franklin County

Reading this record

Oldenburg Water Works is a community water system that draws from surface water purchased and serves about 880 people in Oldenburg, Indiana. 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.