ROSALIA TOWN OF

Washington — Community Water System — PWSID: WA5374250

System Information

PWSIDWA5374250
System NameROSALIA TOWN OF
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
CityRosalia
ZIP Code99170
AddressPO Box 277
OrganizationROSALIA TOWN OF
Phone

Population & Service

Population Served831
Service Connections311

Drinking Water Violations (60)

This water system has 60 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, 2022 Dec 31, 2022 Nitrate MR No Yes 10 mg/L Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2021 Dec 31, 2021 Nitrate MR No Yes 10 mg/L Resolved Dec 31, 2021 Nitrate Rule
Jul 1, 2018 Consumer Confidence Rule Other No No Resolved Oct 10, 2018 Consumer Confidence Rule
Jul 1, 2017 Consumer Confidence Rule Other No No Resolved Feb 8, 2018 Consumer Confidence Rule
Jul 1, 2016 Consumer Confidence Rule Other No No Resolved Oct 25, 2016 Consumer Confidence Rule
Jul 1, 2015 Consumer Confidence Rule Other No No Resolved Sep 16, 2015 Consumer Confidence Rule
Jul 1, 2014 Consumer Confidence Rule Other No No Resolved Oct 14, 2014 Consumer Confidence Rule
Feb 1, 2012 Feb 29, 2012 Coliform (TCR) MR No No 5% of samples Resolved Feb 29, 2012 Total Coliform Rule
Aug 1, 2011 Aug 31, 2011 Coliform (TCR) MR No No 5% of samples Resolved Aug 31, 2011 Total Coliform Rule
Jan 1, 2008 Dec 31, 2010 Ethylbenzene MR No Yes 0.7 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Toluene MR No Yes 1 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-Dichloroethane MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-Dichloropropane MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,1,1-Trichloroethane MR No Yes 0.2 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Trichloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Benzene MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Carbon tetrachloride MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2,4-Trichlorobenzene MR No Yes 0.07 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 DICHLOROMETHANE MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Carbon tetrachloride MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Styrene MR No Yes 0.1 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2,4-Trichlorobenzene MR No Yes 0.07 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Toluene MR No Yes 1 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Vinyl chloride MR No Yes 0.002 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,1,2-Trichloroethane MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,1-Dichloroethylene MR No Yes 0.007 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Ethylbenzene MR No Yes 0.7 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 p-Dichlorobenzene MR No Yes 0.075 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 DICHLOROMETHANE MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 cis-1,2-Dichloroethylene MR No Yes 0.07 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 o-Dichlorobenzene MR No Yes 0.6 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 trans-1,2-Dichloroethylene MR No Yes 0.1 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Tetrachloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 CHLOROBENZENE MR No Yes 0.1 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Benzene MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 cis-1,2-Dichloroethylene MR No Yes 0.07 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 o-Dichlorobenzene MR No Yes 0.6 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 p-Dichlorobenzene MR No Yes 0.075 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Vinyl chloride MR No Yes 0.002 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,1-Dichloroethylene MR No Yes 0.007 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 trans-1,2-Dichloroethylene MR No Yes 0.1 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-Dichloroethane MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,1,1-Trichloroethane MR No Yes 0.2 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-Dichloropropane MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Trichloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,1,2-Trichloroethane MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Tetrachloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 CHLOROBENZENE MR No Yes 0.1 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Styrene MR No Yes 0.1 mg/L Resolved Dec 31, 2010 Volatile Organic Chemicals
Sep 1, 2006 Sep 30, 2006 Coliform (TCR) MCL Yes No 5% of samples Archived Sep 30, 2006 Total Coliform 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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