Community Water System · PWSID 085690002

Ethete Water System

Serves 1,950 peopleSurface WaterOwner: Native AmericanFort Washakie, Wyoming
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 1998: 53 violations. 8 treatment lapses · 44 missed or late tests · 1 notice or report. Most recent began 2025-06-01.

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
8Treatment lapse
44Missed or late test1 open
1Notice or report

More violations on record than 95% 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

1998 · Missed or late test: 120002002 · Missed or late test: 12003 · Missed or late test: 12005 · Treatment lapse: 120052007 · Notice or report: 120102014 · Treatment lapse: 120152016 · Treatment lapse: 12017 · Missed or late test: 262017 · Missed or late test: 262017 · Missed or late test: 262017 · Missed or late test: 262017 · Missed or late test: 262017 · Missed or late test: 262017 · Missed or late test: 262017 · Missed or late test: 262017 · Missed or late test: 262018 · Treatment lapse: 12018 · Missed or late test: 12019 · Treatment lapse: 12019 · Missed or late test: 32020 · Treatment lapse: 12020 · Missed or late test: 72020 · Missed or late test: 72020 · Missed or late test: 720202022 · Missed or late test: 12024 · Missed or late test: 32025 · Treatment lapse: 22025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
15% treatment lapse · 883% missed or late test · 442% notice or report · 1

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 10 results on file · action level 15 ppb

3 ppb
2 ppb
2 ppb
2 ppb
1 ppb
1 ppb
1 ppb
1 ppb
1 ppb
0 ppb

Copper, 90th percentile 1 result on file · action level 1.3 mg/L

5.4 mg/L

Open now (1)

  1. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen

Every violation on record

  1. 2025-06-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  2. 2025-06-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  3. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/ROpen
  4. 2024-01-01Carbon, Total ×2Monitoring and Reporting (DBP)Back in compliance
  5. 2022-04-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  6. 2020-11-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  7. 2020-09-29Lead and Copper RuleLead Consumer NoticeBack in compliance
  8. 2020-04-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  9. 2020-01-01Carbon, Total ×4Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  10. 2020-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  11. 2019-12-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  12. 2019-12-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  13. 2019-06-23Surface water treatment (LT2)Failure To Address DeficiencyBack in compliance
  14. 2019-01-01Nitrate-NitriteMonitoring, RegularBack in compliance
  15. 2018-09-01Revised Total Coliform RuleMONBack in compliance
  16. 2018-07-01Surface water treatment (LT2)Failure To Address DeficiencyBack in compliance
  17. 2017-01-01StyreneMonitoring, RegularBack in compliance
  18. 2017-01-01EthylbenzeneMonitoring, RegularBack in compliance
  19. 2017-01-01TolueneMonitoring, RegularBack in compliance
  20. 2017-01-01BenzeneMonitoring, RegularBack in compliance
  21. 2017-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  22. 2017-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  23. 2017-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  24. 2017-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  25. 2017-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
Show the other 22 entries
  1. 2017-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  2. 2017-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  3. 2017-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  4. 2017-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  5. 2017-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  6. 2017-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  7. 2017-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  8. 2017-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  9. 2017-01-01DichloromethaneMonitoring, RegularBack in compliance
  10. 2017-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  11. 2017-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  12. 2017-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  13. 2017-01-01SodiumMonitoring, RegularBack in compliance
  14. 2017-01-01CyanideMonitoring, RegularBack in compliance
  15. 2017-01-01Carbon, Total ×3Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  16. 2016-03-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  17. 2014-09-02Surface water treatment (LT2)Failure To Address DeficiencyBack in compliance
  18. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  19. 2005-09-01Surface water filtration (IESWTR)Treatment Tech. No Prior State ApprovalBack in compliance
  20. 2003-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  21. 2002-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  22. 1998-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served1,950
Service connections450
Water sourceSurface Water
System typeCommunity Water System
OwnerNative American
StatusActive
CityFort Washakie
EPA ZIP on file82514

Areas served

    Reading this record

    Ethete Water System is a community water system that draws from surface water and serves about 1,950 people in Fort Washakie, 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.