Community Water System · PWSID IN5271024

Hamilton Grove

Serves 384 peopleGroundwaterOwner: PrivateNew Carlisle, Indiana
Nothing open that measures the water, but 1 open testing or paperwork violation.

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 2001: 58 violations. 11 over the limit · 41 missed or late tests · 6 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.

11Over the limit
0Treatment lapse
41Missed or late test
6Notice or report1 open

More violations on record than 98% 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

2001 · Notice or report: 1200520102015 · Notice or report: 120152016 · Over the limit: 32016 · Over the limit: 32016 · Missed or late test: 22017 · Missed or late test: 22018 · Over the limit: 32018 · Over the limit: 32018 · Missed or late test: 212018 · Missed or late test: 212018 · Missed or late test: 212018 · Missed or late test: 212018 · Missed or late test: 212018 · Missed or late test: 212018 · Missed or late test: 212018 · Missed or late test: 212018 · Missed or late test: 212018 · Missed or late test: 212018 · Missed or late test: 212019 · Over the limit: 22019 · Missed or late test: 22019 · Notice or report: 22020 · Over the limit: 32020 · Over the limit: 320202021 · Missed or late test: 22022 · Missed or late test: 62022 · Missed or late test: 62022 · Missed or late test: 62022 · Notice or report: 12023 · Missed or late test: 22024 · Missed or late test: 22025 · Missed or late test: 22025 · 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.
19% over the limit · 1171% missed or late test · 4110% notice or report · 6

Across Indiana, 78% of violations are missed or late tests and 3% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Total Haloacetic Acids (HAA5)Trihalomethanes (TTHM)2020-07-01 · Total Haloacetic Acids (HAA5): measured 62.40 UG/L vs limit 60.00 UG/L (1.0×)2020-04-01 · Total Haloacetic Acids (HAA5): measured 62.40 UG/L vs limit 60.00 UG/L (1.0×)2020-01-01 · Total Haloacetic Acids (HAA5): measured 62.40 UG/L vs limit 60.00 UG/L (1.0×)2019-01-01 · Trihalomethanes (TTHM): measured 83.20 UG/L vs limit 80.00 UG/L (1.0×)2018-10-01 · Trihalomethanes (TTHM): measured 82.50 UG/L vs limit 80.00 UG/L (1.0×)2018-07-01 · Trihalomethanes (TTHM): measured 83.30 UG/L vs limit 80.00 UG/L (1.0×)2018-04-01 · Trihalomethanes (TTHM): measured 83.20 UG/L vs limit 80.00 UG/L (1.0×)2016-10-01 · Total Haloacetic Acids (HAA5): measured 68.50 UG/L vs limit 60.00 UG/L (1.1×)2016-07-01 · Total Haloacetic Acids (HAA5): measured 72.30 UG/L vs limit 60.00 UG/L (1.2×)2016-04-01 · Total Haloacetic Acids (HAA5): measured 67.60 UG/L vs limit 60.00 UG/L (1.1×)
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 3 results on file · action level 15 ppb

7.7 ppb
0 ppb
0 ppb

Open now (1)

  1. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen

Every violation on record

  1. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  2. 2025-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  3. 2025-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  4. 2024-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  5. 2024-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  6. 2023-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  7. 2023-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  8. 2022-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  9. 2022-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  10. 2022-06-01Revised Total Coliform RuleRPTBack in compliance
  11. 2022-04-01Radium-228Monitoring, RegularPeriod ended · no return to compliance on file
  12. 2022-04-01Radium-226Monitoring, RegularPeriod ended · no return to compliance on file
  13. 2022-04-01Gross Alpha, Excl. Radon and UMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2022-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  15. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  16. 2021-10-01Revised Total Coliform RuleMONBack in compliance
  17. 2020-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 62.40 UG/L · limit 60.00 UG/LBack in compliance
  18. 2020-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 62.40 UG/L · limit 60.00 UG/LBack in compliance
  19. 2020-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 62.40 UG/L · limit 60.00 UG/LBack in compliance
  20. 2019-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 62.40 UG/LBack in compliance
  21. 2019-06-01Revised Total Coliform RuleRPTBack in compliance
  22. 2019-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 83.20 UG/L · limit 80.00 UG/LBack in compliance
  23. 2019-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  24. 2019-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  25. 2019-01-01Revised Total Coliform RuleRPTBack in compliance
Show the other 33 entries
  1. 2018-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 82.50 UG/L · limit 80.00 UG/LBack in compliance
  2. 2018-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 83.30 UG/L · limit 80.00 UG/LBack in compliance
  3. 2018-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 83.20 UG/L · limit 80.00 UG/LBack in compliance
  4. 2018-01-01StyreneMonitoring, RegularBack in compliance
  5. 2018-01-01EthylbenzeneMonitoring, RegularBack in compliance
  6. 2018-01-01TolueneMonitoring, RegularBack in compliance
  7. 2018-01-01BenzeneMonitoring, RegularBack in compliance
  8. 2018-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  9. 2018-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  10. 2018-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  11. 2018-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  12. 2018-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  13. 2018-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  14. 2018-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  15. 2018-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  16. 2018-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  17. 2018-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  18. 2018-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  19. 2018-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  20. 2018-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  21. 2018-01-01DichloromethaneMonitoring, RegularBack in compliance
  22. 2018-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  23. 2018-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  24. 2018-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  25. 2017-03-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  26. 2017-03-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  27. 2016-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 68.50 UG/L · limit 60.00 UG/LBack in compliance
  28. 2016-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 72.30 UG/L · limit 60.00 UG/LBack in compliance
  29. 2016-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 67.60 UG/L · limit 60.00 UG/LBack in compliance
  30. 2016-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  31. 2016-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  32. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  33. 2001-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance

System details

Population served384
Service connections26
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityNew Carlisle
EPA ZIP on file46552-9639

Areas served

  • New Carlisle, St. Joseph County

Reading this record

Hamilton Grove is a community water system that draws from groundwater and serves about 384 people in New Carlisle, 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.