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UKIAH, CITY OF

Oregon — Community Water System — PWSID: OR4100913

System Information

PWSIDOR4100913
System NameUKIAH, CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1979
Last ReportedMar 25, 2026

Location & Contact

StateOregon
CityUKIAH
ZIP Code97880
AddressPO BOX 265
OrganizationUKIAH, CITY OF
Phone541-427-3900

Population & Service

Population Served235
Service Connections165

Drinking Water Violations (178)

This water system has 178 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, 2023 — Other No No — — — Resolved Jul 3, 2023 —
Aug 1, 2020 Aug 31, 2020 MON No Yes — — — Resolved Aug 31, 2020 —
Jul 6, 2017 — TT Yes No — — — Resolved Aug 21, 2017 —
Jun 5, 2017 — MR No Yes — — — Resolved Jun 22, 2017 —
Jan 5, 2015 — Other No No — — — Resolved Jan 14, 2015 —
Jan 5, 2015 — Other No No — — — Resolved Jan 14, 2015 —
Nov 28, 2014 — Other No No — — — Resolved Dec 6, 2014 —
Oct 30, 2014 — MR No Yes — — — Resolved Feb 21, 2015 —
Oct 1, 2014 Oct 31, 2014 MCL Yes No — 5% of samples — Resolved Oct 31, 2014 —
Oct 1, 2014 Oct 31, 2014 MCL Yes No — 5% of samples — Resolved Oct 31, 2014 —
Oct 1, 2014 Oct 31, 2014 MCL Yes No — 5% of samples — Resolved Oct 31, 2014 —
Sep 1, 2014 Sep 30, 2014 MCL Yes No — 5% of samples — Resolved Sep 30, 2014 —
Sep 1, 2014 Sep 30, 2014 MCL Yes No — 5% of samples — Resolved Sep 30, 2014 —
Sep 1, 2014 Sep 30, 2014 MCL Yes No — 5% of samples — Resolved Sep 30, 2014 —
Jul 14, 2014 — Other No No — — — Resolved Aug 22, 2014 —
Jul 10, 2014 — MR No Yes — — — Resolved Aug 8, 2014 —
Jul 1, 2014 Jul 31, 2014 MR No No — 5% of samples — Resolved Jul 31, 2014 —
Jun 1, 2014 Jun 30, 2014 MCL Yes No — 5% of samples — Resolved Jun 30, 2014 —
Jun 1, 2014 Jun 30, 2014 MCL Yes No — 5% of samples — Resolved Jun 30, 2014 —
Jun 1, 2014 Jun 30, 2014 MCL Yes No — 5% of samples — Resolved Jun 30, 2014 —
May 1, 2014 May 31, 2014 MCL Yes No — 5% of samples — Resolved May 31, 2014 —
May 1, 2014 May 31, 2014 MCL Yes No — 5% of samples — Resolved May 31, 2014 —
May 1, 2014 May 31, 2014 MCL Yes No — 5% of samples — Resolved May 31, 2014 —
Jan 1, 2014 Dec 31, 2022 MR No Yes — 5 pCi/L — Resolved Dec 31, 2022 —
Dec 1, 2013 Dec 31, 2013 MR No No — 5% of samples — Resolved Dec 31, 2013 —
Nov 11, 2013 — Other No No — — — Resolved Feb 26, 2014 —
Oct 1, 2013 Oct 31, 2013 MR No No — 5% of samples — Resolved Oct 31, 2013 —
Sep 1, 2013 Sep 30, 2013 MCL Yes No — 5% of samples — Resolved Sep 30, 2013 —
Sep 1, 2013 Sep 30, 2013 MCL Yes No — 5% of samples — Resolved Sep 30, 2013 —
Aug 1, 2013 Aug 31, 2013 MR No No — 5% of samples — Resolved Aug 31, 2013 —
Apr 1, 2013 Apr 30, 2013 MR No No — 5% of samples — Resolved Apr 30, 2013 —
Jun 1, 2012 Jun 30, 2012 MR No No — 5% of samples — Resolved Jun 30, 2012 —
Jun 1, 2012 Jun 30, 2012 MR No No — 5% of samples — Resolved Jun 30, 2012 —
Apr 1, 2012 — MR No Yes — — — Resolved Jun 5, 2012 —
Apr 1, 2012 — MR No Yes — — — Resolved Jun 5, 2012 —
Apr 1, 2012 — MR No Yes — — — Resolved Jun 5, 2012 —
Oct 1, 2011 Oct 31, 2011 MR No No — 5% of samples — Resolved Oct 31, 2011 —
Oct 1, 2011 Oct 31, 2011 MR No No — 5% of samples — Resolved Oct 31, 2011 —
Sep 1, 2011 Sep 30, 2011 MCL Yes No — 5% of samples — Resolved Sep 30, 2011 —
Sep 1, 2011 Sep 30, 2011 MCL Yes No — 5% of samples — Resolved Sep 30, 2011 —
Sep 1, 2011 Sep 30, 2011 MCL Yes No — 5% of samples — Resolved Sep 30, 2011 —
Sep 1, 2011 Sep 30, 2011 MCL Yes No — 5% of samples — Resolved Sep 30, 2011 —
Aug 1, 2011 Aug 31, 2011 MCL Yes No — 5% of samples — Resolved Aug 31, 2011 —
Aug 1, 2011 Aug 31, 2011 MCL Yes No — 5% of samples — Resolved Aug 31, 2011 —
Aug 1, 2011 Aug 31, 2011 MCL Yes No — 5% of samples — Resolved Aug 31, 2011 —
Aug 1, 2011 Aug 31, 2011 MCL Yes No — 5% of samples — Resolved Aug 31, 2011 —
Jul 21, 2011 — Other No No — — — Resolved Jun 9, 2011 —
Jul 21, 2011 — Other No No — — — Resolved Jun 9, 2011 —
Jul 1, 2011 Jul 31, 2011 MR No No — 5% of samples — Resolved Jul 31, 2011 —
Jul 1, 2011 Jul 31, 2011 MR No No — 5% of samples — Resolved Jul 31, 2011 —

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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