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ETHETE WATER SYSTEM

Wyoming — Community Water System — PWSID: 085690002

System Information

PWSID085690002
System NameETHETE WATER SYSTEM
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeNative American
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 4, 1980
Last ReportedNov 17, 2025

Location & Contact

StateWyoming
CityFORT WASHAKIE
ZIP Code82514
AddressP.O. Box 1304
OrganizationHARJO, BRENDEN
Phone—

Population & Service

Population Served1,950
Service Connections450

Drinking Water Violations (594)

This water system has 594 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jun 1, 2025 Jun 30, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2025 Jun 30, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2024 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Jan 1, 2024 Mar 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Mar 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Mar 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Apr 11, 2022 Lead and Copper Rule
Nov 1, 2020 Nov 30, 2020 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 2020 Surface Water Treatment Rule
Nov 1, 2020 Nov 30, 2020 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 2020 Surface Water Treatment Rule
Sep 29, 2020 — Lead and Copper Rule MR No No — TT — Resolved Aug 17, 2021 Lead and Copper Rule
Apr 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Aug 17, 2021 Lead and Copper Rule
Jan 1, 2020 Mar 31, 2020 CARBON, TOTAL MR No Yes — TT — Archived Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 CARBON, TOTAL MR No Yes — TT — Archived Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 CARBON, TOTAL MR No Yes — TT — Archived Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Jan 13, 2021 Lead and Copper Rule
Jan 1, 2020 Mar 31, 2020 CARBON, TOTAL MR No Yes — TT — Archived Mar 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2019 Feb 28, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Feb 28, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2019 Feb 28, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Feb 28, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 23, 2019 — Long Term 2 Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 8, 2021 Long Term 2 Enhanced Surface Water Treatment Rule
Jun 23, 2019 — Long Term 2 Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 8, 2021 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2019 Dec 31, 2019 Nitrate-Nitrite MR No Yes — — — Resolved Dec 9, 2019 Nitrate Rule
Sep 1, 2018 Sep 30, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2018 Revised Total Coliform Rule
Jul 1, 2018 — Long Term 2 Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 6, 2019 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2018 — Long Term 2 Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 6, 2019 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2017 Dec 31, 2017 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Mar 31, 2017 CARBON, TOTAL MR No Yes — TT — Archived Mar 31, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Dec 31, 2017 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Mar 31, 2017 CARBON, TOTAL MR No Yes — TT — Archived Mar 31, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Dec 31, 2017 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2017 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Jan 1, 2017 Mar 31, 2017 CARBON, TOTAL MR No Yes — TT — Archived Mar 31, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Dec 31, 2017 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2017 Inorganic Chemicals
Jan 1, 2017 Dec 31, 2017 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2017 Volatile Organic Chemicals
Mar 1, 2016 Mar 31, 2016 Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2016 Surface Water Treatment Rule
Mar 1, 2016 Mar 31, 2016 Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2016 Surface Water Treatment Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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