Transient Non-Community · PWSID MT0003042

Causeway Chalet

Serves 100 peopleGroundwaterOwner: PrivateHelena, Montana
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 2015: 68 violations. 1 treatment lapse · 67 missed or late tests. Most recent began 2025-03-01.

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
67Missed or late test1 open
0Notice or report

More violations on record than 96% of active water systems in Montana. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

200520102015 · Missed or late test: 120152016 · Missed or late test: 62016 · Missed or late test: 62016 · Missed or late test: 62016 · Missed or late test: 62016 · Missed or late test: 62016 · Missed or late test: 62017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72017 · Missed or late test: 72018 · Missed or late test: 102018 · Missed or late test: 102018 · Missed or late test: 102018 · Missed or late test: 102018 · Missed or late test: 102018 · Missed or late test: 102018 · Missed or late test: 102018 · Missed or late test: 102018 · Missed or late test: 102018 · Missed or late test: 102019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72019 · Missed or late test: 72020 · Missed or late test: 62020 · Missed or late test: 62020 · Missed or late test: 62020 · Missed or late test: 62020 · Missed or late test: 62020 · Missed or late test: 620202021 · Missed or late test: 82021 · Missed or late test: 82021 · Missed or late test: 82021 · Missed or late test: 82021 · Missed or late test: 82021 · Missed or late test: 82021 · Missed or late test: 82021 · Missed or late test: 82022 · Missed or late test: 62022 · Missed or late test: 62022 · Missed or late test: 62022 · Missed or late test: 62022 · Missed or late test: 62022 · Missed or late test: 62023 · Treatment lapse: 12023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62023 · Missed or late test: 62024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82024 · Missed or late test: 82025 · Missed or late test: 22025 · Missed or late test: 22025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
1% treatment lapse · 199% missed or late test · 67

Across Montana, 85% of violations are missed or late tests and 3% are water over a limit.

Open now (1)

  1. 2023-07-06E. ColiMonitoring, Source Water (GWR)Open

Every violation on record

  1. 2025-03-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  2. 2025-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  3. 2024-10-01Revised Total Coliform RuleMONBack in compliance
  4. 2024-09-01Revised Total Coliform RuleMONBack in compliance
  5. 2024-05-01Revised Total Coliform RuleMONBack in compliance
  6. 2024-04-01Revised Total Coliform RuleMONBack in compliance
  7. 2024-03-01Revised Total Coliform RuleMONBack in compliance
  8. 2024-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  9. 2024-01-01Nitrate-NitriteMonitoring, RegularBack in compliance
  10. 2024-01-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  11. 2023-12-01Revised Total Coliform RuleMONBack in compliance
  12. 2023-10-14Revised Total Coliform RuleTTBack in compliance
  13. 2023-07-06E. ColiMonitoring, Source Water (GWR)Open
  14. 2023-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  15. 2023-05-01Revised Total Coliform RuleMONBack in compliance
  16. 2023-04-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  17. 2023-03-01Revised Total Coliform RuleMONBack in compliance
  18. 2022-12-01Revised Total Coliform RuleMONBack in compliance
  19. 2022-08-01Revised Total Coliform RuleMONBack in compliance
  20. 2022-07-01Revised Total Coliform RuleMONBack in compliance
  21. 2022-05-04E. ColiMonitoring, Source Water (GWR)Back in compliance
  22. 2022-05-01Revised Total Coliform RuleMONBack in compliance
  23. 2022-02-01Revised Total Coliform RuleMONBack in compliance
  24. 2021-10-01Revised Total Coliform RuleMONBack in compliance
  25. 2021-09-01Revised Total Coliform RuleMONBack in compliance
Show the other 43 entries
  1. 2021-08-01Revised Total Coliform RuleMONBack in compliance
  2. 2021-06-01Revised Total Coliform RuleMONBack in compliance
  3. 2021-05-01Revised Total Coliform RuleMONBack in compliance
  4. 2021-04-01Revised Total Coliform RuleMONBack in compliance
  5. 2021-02-01Revised Total Coliform RuleMONBack in compliance
  6. 2021-01-01Revised Total Coliform RuleMONBack in compliance
  7. 2020-12-01Revised Total Coliform RuleMONBack in compliance
  8. 2020-11-07E. ColiMonitoring, Source Water (GWR)Back in compliance
  9. 2020-11-01Revised Total Coliform RuleMONBack in compliance
  10. 2020-07-01Revised Total Coliform RuleMONBack in compliance
  11. 2020-04-01Revised Total Coliform RuleMONBack in compliance
  12. 2020-02-04E. ColiMonitoring, Source Water (GWR)Back in compliance
  13. 2019-11-01Revised Total Coliform RuleMONBack in compliance
  14. 2019-10-01Revised Total Coliform RuleMONBack in compliance
  15. 2019-07-01Revised Total Coliform RuleMONBack in compliance
  16. 2019-06-01Revised Total Coliform RuleMONBack in compliance
  17. 2019-05-01Revised Total Coliform RuleMONBack in compliance
  18. 2019-04-01Revised Total Coliform RuleMONBack in compliance
  19. 2019-03-01Revised Total Coliform RuleMONBack in compliance
  20. 2018-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  21. 2018-11-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  22. 2018-10-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  23. 2018-08-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  24. 2018-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  25. 2018-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  26. 2018-03-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  27. 2018-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  28. 2018-01-01Nitrate-NitriteMonitoring, RegularPeriod ended · no return to compliance on file
  29. 2018-01-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  30. 2017-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  31. 2017-10-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  32. 2017-09-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  33. 2017-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  34. 2017-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  35. 2017-04-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  36. 2017-01-01Revised Total Coliform RuleMONBack in compliance
  37. 2016-12-01Revised Total Coliform RuleMONBack in compliance
  38. 2016-11-01Revised Total Coliform RuleMONBack in compliance
  39. 2016-10-01Revised Total Coliform RuleMONBack in compliance
  40. 2016-07-01Revised Total Coliform RuleMONBack in compliance
  41. 2016-06-01Revised Total Coliform RuleMONBack in compliance
  42. 2016-01-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  43. 2015-12-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance

System details

Population served100
Service connections1
Water sourceGroundwater
System typeTransient Non-Community
OwnerPrivate
StatusActive
CityHelena
EPA ZIP on file59602

Areas served

  • Helena, Lewis and Clark County

Reading this record

Causeway Chalet is a transient non-community that draws from groundwater and serves about 100 people in Helena, Montana. 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.