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OKANOGAN WATER DEPARTMENT CITY OF

Washington — Community Water System — PWSID: WA5363200

System Information

PWSIDWA5363200
System NameOKANOGAN WATER DEPARTMENT CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerYes
First ReportedFeb 7, 1981
Last ReportedMar 26, 2026

Location & Contact

StateWashington
CityOKANOGAN
ZIP Code98840
AddressPO Box 752
OrganizationOKANOGAN WATER DEPARTMENT CITY OF
Phone—

Population & Service

Population Served2,921
Service Connections1,247

Drinking Water Violations (78)

This water system has 78 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
Jan 1, 2023 Dec 31, 2025 MR No Yes — 0.010 mg/L — Archived Dec 31, 2025 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.007 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.002 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.6 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.7 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 1 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.07 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.07 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.2 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.075 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2018 Dec 31, 2018 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2018 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 1 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.07 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.7 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.075 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.07 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.6 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.002 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.007 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.2 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2015 Dec 31, 2015 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2015 —
Jan 1, 2013 Dec 31, 2013 MR No Yes — 10 mg/L — Resolved Dec 31, 2013 —
Nov 1, 2006 Nov 30, 2006 MCL Yes No — 5% of samples — Archived Nov 30, 2006 —
Aug 1, 2006 Aug 31, 2006 MCL Yes No — 5% of samples — Archived Aug 31, 2006 —
Nov 1, 2005 Nov 30, 2005 MCL Yes No — 5% of samples — Archived Nov 30, 2005 —
Jan 1, 2002 Dec 31, 2004 MR No Yes — 1 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2002 Dec 31, 2004 MR No Yes — 0.075 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2002 Dec 31, 2004 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2002 Dec 31, 2004 MR No Yes — 0.005 mg/L — Resolved Dec 31, 2004 —
Jan 1, 2002 Dec 31, 2004 MR No Yes — 0.1 mg/L — Resolved Dec 31, 2004 —

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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