Community Water System · PWSID WA5300484

Township 29 Water Association

Serves 42 peopleGroundwaterOwner: PrivateMount Vernon, Washington
Nothing open right now.

On record since 2016: 24 violations. 12 over the limit · 12 missed or late tests. 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.

12Over the limit
0Treatment lapse
12Missed or late test
0Notice or report

More violations on record than 89% of active water systems in Washington. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152016 · Missed or late test: 42016 · Missed or late test: 42016 · Missed or late test: 42016 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42018 · Over the limit: 22018 · Over the limit: 220202022 · Missed or late test: 22022 · Missed or late test: 22023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Missed or late test: 22023 · Missed or late test: 22024 · Over the limit: 32024 · Over the limit: 32024 · Over the limit: 32025 · Over the limit: 32025 · Over the limit: 32025 · Over the limit: 32025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
50% over the limit · 1250% missed or late test · 12

Across Washington, 88% 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 ppb
2.3 ppb
2.2 ppb

Every violation on record

  1. 2025-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 158.53 UG/LPeriod ended · no return to compliance on file
  2. 2025-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 145.38 UG/LPeriod ended · no return to compliance on file
  3. 2025-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 128.75 UG/LPeriod ended · no return to compliance on file
  4. 2024-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 132.83 UG/LPeriod ended · no return to compliance on file
  5. 2024-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 112.03 UG/LPeriod ended · no return to compliance on file
  6. 2024-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 108.80 UG/LPeriod ended · no return to compliance on file
  7. 2023-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 120.70 UG/LPeriod ended · no return to compliance on file
  8. 2023-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 156.90 UG/LPeriod ended · no return to compliance on file
  9. 2023-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  10. 2023-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  11. 2023-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 173.60 UG/LPeriod ended · no return to compliance on file
  12. 2023-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 212.70 UG/LPeriod ended · no return to compliance on file
  13. 2022-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  14. 2022-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  15. 2018-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 83.40 UG/LBack in compliance
  16. 2018-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 87.80 UG/LBack in compliance
  17. 2017-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  18. 2017-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  19. 2017-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  20. 2017-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  21. 2016-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  22. 2016-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  23. 2016-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  24. 2016-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance

System details

Population served42
Service connections24
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityMount Vernon
EPA ZIP on file98273

Areas served

  • Island County

Reading this record

Township 29 Water Association is a community water system that draws from groundwater and serves about 42 people in Mount Vernon, Washington. 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.