Community Water System · PWSID WY5601719

North Forty Subdivision

Serves 15 peopleGroundwaterOwner: PrivateThayne, Wyoming
Nothing open right now.

On record since 2020: 24 violations. 1 treatment lapse · 23 missed or late tests. Most recent began 2024-12-30.

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
23Missed or late test
0Notice or report

More violations on record than 90% of active water systems in Wyoming. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152020 · Missed or late test: 120202021 · Missed or late test: 12022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152022 · Missed or late test: 152023 · Missed or late test: 52023 · Missed or late test: 52023 · Missed or late test: 52024 · Treatment lapse: 12024 · Missed or late test: 12025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
4% treatment lapse · 196% missed or late test · 23

Across Wyoming, 85% of violations are missed or late tests and 4% 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 5 results on file · action level 15 ppb

0 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2024-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
  2. 2024-07-06Groundwater RuleFailure To Address DeficiencyBack in compliance
  3. 2023-01-01Radium-228Monitoring, RegularPeriod ended · no return to compliance on file
  4. 2023-01-01Radium-226Monitoring, RegularPeriod ended · no return to compliance on file
  5. 2023-01-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  6. 2023-01-01Combined UraniumMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2023-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2022-10-01Radium-228Monitoring, RegularBack in compliance
  9. 2022-10-01Radium-226Monitoring, RegularBack in compliance
  10. 2022-10-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  11. 2022-10-01Combined UraniumMonitoring, RegularBack in compliance
  12. 2022-10-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  13. 2022-07-01Combined UraniumMonitoring, RegularBack in compliance
  14. 2022-07-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  15. 2022-07-01Radium-228Monitoring, RegularBack in compliance
  16. 2022-07-01Radium-226Monitoring, RegularBack in compliance
  17. 2022-07-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  18. 2022-01-01Radium-228Monitoring, RegularBack in compliance
  19. 2022-01-01Radium-226Monitoring, RegularBack in compliance
  20. 2022-01-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  21. 2022-01-01Combined UraniumMonitoring, RegularBack in compliance
  22. 2022-01-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  23. 2021-09-29Lead and Copper RuleLead Consumer NoticeBack in compliance
  24. 2020-04-01AsbestosMonitoring, RegularBack in compliance

System details

Population served15
Service connections31
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityThayne
EPA ZIP on file83127

Areas served

  • Thayne, Lincoln County

Reading this record

North Forty Subdivision is a community water system that draws from groundwater and serves about 15 people in Thayne, Wyoming. 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.