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WALLULA WATER DISTRICT

Washington — Community Water System — PWSID: WA5392600

System Information

PWSIDWA5392600
System NameWALLULA WATER DISTRICT
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityCollege Place
ZIP Code99324
AddressPO Box 324
OrganizationWALLULA WATER DISTRICT
Phone—

Population & Service

Population Served200
Service Connections62

Drinking Water Violations (51)

This water system has 51 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 Sep 29, 2025 Consumer Confidence Rule
Jan 1, 2024 Mar 31, 2024 Fluoride MR No Yes — 4.0 mg/L — Resolved Mar 31, 2024 Inorganic Chemicals
Jan 1, 2022 Mar 31, 2022 Fluoride MR No Yes — 4.0 mg/L — Resolved Mar 31, 2022 Inorganic Chemicals
Jan 1, 2022 Mar 31, 2022 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2022 Arsenic Rule
Oct 1, 2021 Dec 31, 2021 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2021 Inorganic Chemicals
Oct 1, 2021 Dec 31, 2021 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2021 Arsenic Rule
Jul 1, 2021 Sep 30, 2021 Fluoride MR No Yes — 4.0 mg/L — Resolved Sep 30, 2021 Inorganic Chemicals
Jul 1, 2019 Sep 30, 2019 Fluoride MR No Yes — 4.0 mg/L — Resolved Sep 30, 2019 Inorganic Chemicals
Jan 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Jun 27, 2022 Lead and Copper Rule
Oct 1, 2016 Dec 31, 2016 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2016 Inorganic Chemicals
May 1, 2014 May 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2014 Total Coliform Rule
Jan 1, 2011 Dec 31, 2019 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2019 Nitrate Rule
Jan 1, 2011 Dec 31, 2019 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 Nickel MR No Yes — — — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2019 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2019 Arsenic Rule
Jan 1, 2011 Dec 31, 2019 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2019 Inorganic Chemicals
Jan 1, 2010 Mar 31, 2010 Arsenic MCL Yes No .0118 MG/L 0.010 mg/L — Resolved Mar 31, 2010 Arsenic Rule
Jan 1, 2008 Dec 31, 2010 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Nickel MR No Yes — — — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Sep 1, 2006 Sep 30, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Archived Sep 30, 2006 Total Coliform Rule
Jul 1, 2006 Sep 30, 2006 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2006 Arsenic Rule
Jul 1, 2006 Sep 30, 2006 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2006 Arsenic Rule
Jul 1, 2006 Sep 30, 2006 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2006 Arsenic Rule
Jul 1, 2006 Sep 30, 2006 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2006 Arsenic Rule
Jul 1, 2006 Sep 30, 2006 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2006 Arsenic Rule
Jan 1, 2005 Dec 31, 2007 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jul 1, 1997 Dec 31, 1999 Lead and Copper Rule MR No No — TT — Resolved Dec 31, 1999 Lead and Copper 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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