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WEST RICHLAND CITY OF

Washington — Community Water System — PWSID: WA5394900

System Information

PWSIDWA5394900
System NameWEST RICHLAND CITY OF
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityWest Richland
ZIP Code99353
Address3100 Belmont Blvd, Suite 102
OrganizationWEST RICHLAND CITY OF
Phone—

Population & Service

Population Served18,280
Service Connections7,009

Drinking Water Violations (62)

This water system has 62 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, 2021 Dec 31, 2021 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2021 Nitrate Rule
Jan 1, 2020 Mar 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Sep 3, 2015 Consumer Confidence Rule
Jul 1, 2008 Sep 30, 2008 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2008 Synthetic Organic Chemicals
Jul 1, 2008 Sep 30, 2008 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2008 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 — Archived 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, 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, 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

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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