Community Water System · PWSID OR4100525

Villadom Mobile Home Park

Serves 115 peopleGroundwaterOwner: PrivateLafayette, California
Nothing open that measures the water, but 5 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: 60 violations. 3 treatment lapses · 49 missed or late tests · 8 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
3Treatment lapse
49Missed or late test2 open
8Notice or report3 open

More violations on record than 98% of active water systems in California. 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: 2199520002001 · Notice or report: 22001 · Notice or report: 22002 · Notice or report: 12003 · Missed or late test: 120052010 · Missed or late test: 1201020152018 · Missed or late test: 12019 · Missed or late test: 32019 · Missed or late test: 32019 · Missed or late test: 32020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 520202021 · Missed or late test: 42021 · Missed or late test: 42021 · Missed or late test: 42021 · Missed or late test: 42022 · Missed or late test: 92022 · Missed or late test: 92022 · Missed or late test: 92022 · Missed or late test: 92022 · Missed or late test: 92022 · Missed or late test: 92022 · Missed or late test: 92022 · Missed or late test: 92022 · Missed or late test: 92023 · Treatment lapse: 22023 · Treatment lapse: 22023 · Missed or late test: 52023 · Missed or late test: 52023 · Missed or late test: 52023 · Missed or late test: 52023 · Missed or late test: 52023 · Notice or report: 42023 · Notice or report: 42023 · Notice or report: 42023 · Notice or report: 42024 · Missed or late test: 102024 · Missed or late test: 102024 · Missed or late test: 102024 · Missed or late test: 102024 · Missed or late test: 102024 · Missed or late test: 102024 · Missed or late test: 102024 · Missed or late test: 102024 · Missed or late test: 102024 · Missed or late test: 102025 · Treatment lapse: 12025 · Missed or late test: 82025 · Missed or late test: 82025 · Missed or late test: 82025 · Missed or late test: 82025 · Missed or late test: 82025 · Missed or late test: 82025 · Missed or late test: 82025 · Missed or late test: 82025 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
5% treatment lapse · 382% missed or late test · 4913% notice or report · 8

Across California, 52% of violations are missed or late tests and 29% 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

10.7 ppb
7 ppb
7 ppb
6 ppb
5 ppb
5 ppb
3 ppb
1 ppb

Open now (5)

  1. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  2. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  3. 2025-01-01Lead and Copper RuleInitial, Follow-up, or Routine Source Water M/ROpen
  4. 2023-10-22Public NoticePN Violation for NPDWR ViolationOpen
  5. 2023-06-23Public NoticePN Violation for NPDWR ViolationOpen

Every violation on record

  1. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  2. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  3. 2025-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  4. 2025-03-08Revised Total Coliform RuleTTBack in compliance
  5. 2025-01-01Lead and Copper RuleInitial, Follow-up, or Routine Source Water M/ROpen
  6. 2025-01-01Lead and Copper Rule ×5Initial, Follow-up, or Routine Source Water M/RBack in compliance
  7. 2024-11-01Revised Total Coliform RuleMONBack in compliance
  8. 2024-07-01Lead and Copper Rule ×6Initial, Follow-up, or Routine Source Water M/RBack in compliance
  9. 2024-01-01Lead and Copper Rule ×3Initial, Follow-up, or Routine Source Water M/RBack in compliance
  10. 2023-10-22Public NoticePN Violation for NPDWR ViolationOpen
  11. 2023-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  12. 2023-07-01Lead and Copper Rule ×2Initial, Follow-up, or Routine Source Water M/RBack in compliance
  13. 2023-07-01Lead and Copper RuleWQP Entry Point/Tap Treatment Technique Non-CompliancePeriod ended · no return to compliance on file
  14. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  15. 2023-06-23Public NoticePN Violation for NPDWR ViolationOpen
  16. 2023-01-01ColiphageFailure to Conduct Assessment MonitoringBack in compliance
  17. 2023-01-01Lead and Copper Rule ×2Initial, Follow-up, or Routine Source Water M/RBack in compliance
  18. 2023-01-01Lead and Copper RuleWQP Entry Point/Tap Treatment Technique Non-CompliancePeriod ended · no return to compliance on file
  19. 2022-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  20. 2022-07-01Lead and Copper Rule ×5Initial, Follow-up, or Routine Source Water M/RBack in compliance
  21. 2022-01-01Lead and Copper Rule ×3Initial, Follow-up, or Routine Source Water M/RBack in compliance
  22. 2021-01-01Coliphage ×2Failure to Conduct Assessment MonitoringBack in compliance
  23. 2021-01-01Lead and Copper Rule ×2Initial, Follow-up, or Routine Source Water M/RBack in compliance
  24. 2020-08-01Revised Total Coliform RuleMONBack in compliance
  25. 2020-07-01Lead and Copper Rule ×4Initial, Follow-up, or Routine Source Water M/RBack in compliance
Show the other 11 entries
  1. 2019-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2019-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  3. 2019-01-01ColiphageFailure to Conduct Assessment MonitoringBack in compliance
  4. 2018-12-01Revised Total Coliform RuleMONBack in compliance
  5. 2010-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  6. 2003-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  7. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  8. 2001-10-19Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  9. 2001-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack 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 served115
Service connections90
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityLafayette
EPA ZIP on file94549-2619

Areas served

  • Umatilla County

Reading this record

Villadom Mobile Home Park is a community water system that draws from groundwater and serves about 115 people in Lafayette, California. 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.