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OMAK HUD

Washington — Community Water System — PWSID: 105300008

System Information

PWSID105300008
System NameOMAK HUD
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedJan 27, 1981
Last ReportedDec 30, 2025

Location & Contact

StateWashington
CityNESPELEM
ZIP Code99155
AddressP.O. BOX 150
OrganizationTOULOU, RON
Phone509-634-2809

Population & Service

Population Served380
Service Connections109

Drinking Water Violations (372)

This water system has 372 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
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Jul 14, 2025 Consumer Confidence Rule
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Aug 19, 2025 Lead and Copper Rule Revisions
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Nov 13, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Nov 13, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 15, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Aug 21, 2023 Consumer Confidence Rule
Jun 18, 2023 — Groundwater Rule TT Yes No — — — Resolved Mar 28, 2024 Ground Water Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 2, 2022 — Consumer Confidence Rule Other No No — — — Resolved Nov 1, 2022 Consumer Confidence Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Oct 11, 2022 Consumer Confidence Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Aug 27, 2021 Lead and Copper Rule
Jan 1, 2020 Dec 31, 2022 Asbestos MR No Yes — 7 MFL — Archived Dec 31, 2022 Inorganic Chemicals
Oct 30, 2019 — Groundwater Rule TT Yes No — — — Resolved Jul 13, 2021 Ground Water Rule
Oct 30, 2019 — Groundwater Rule TT Yes No — — — Resolved Jul 13, 2021 Ground Water Rule
Oct 30, 2019 — Groundwater Rule TT Yes No — — — Resolved Jul 13, 2021 Ground Water Rule
Oct 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Aug 27, 2021 Lead and Copper Rule
Sep 1, 2019 Aug 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2019 Aug 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 Dec 31, 2019 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2019 Nitrate Rule
Oct 1, 2017 — Consumer Confidence Rule Other No No — — — Resolved Jan 12, 2018 Consumer Confidence Rule
Jan 1, 2017 Dec 31, 2019 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 LASSO MR No Yes — — — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2017 Dec 31, 2019 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2017 Dec 31, 2019 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 LASSO MR No Yes — — — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2019 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals
Jan 1, 2017 Dec 31, 2019 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2017 Dec 31, 2019 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Volatile Organic Chemicals

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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