WATER DISTRICT 19

Washington — Community Water System — PWSID: WA5338900

System Information

PWSIDWA5338900
System NameWATER DISTRICT 19
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerYes
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityVashon
ZIP Code98070
AddressPO Box T
OrganizationWATER DISTRICT 19
Phone

Population & Service

Population Served3,723
Service Connections1,701

Drinking Water Violations (569)

This water system has 569 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
Aug 1, 2025 Aug 31, 2025 Long Term 2 Enhanced Surface Water Treatment Rule TT Yes No Resolved Aug 31, 2025 Long Term 2 Enhanced Surface Water Treatment Rule
Aug 1, 2025 Aug 31, 2025 Long Term 2 Enhanced Surface Water Treatment Rule TT Yes No Resolved Aug 31, 2025 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No 61.4 UG/L 0.060 mg/L Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No 61.4 UG/L 0.060 mg/L Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2016 Sep 30, 2016 Surface Water Treatment Rule MR No Yes Resolved Sep 30, 2016 Surface Water Treatment Rule
Sep 1, 2016 Sep 30, 2016 Surface Water Treatment Rule MR No Yes Resolved Sep 30, 2016 Surface Water Treatment Rule
Jul 1, 2014 Sep 30, 2014 TTHM MR No Yes 0.080 mg/L Resolved Sep 30, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2010 Consumer Confidence Rule Other No No Resolved Sep 22, 2010 Consumer Confidence Rule
Jan 1, 2009 Dec 31, 2009 Nitrate MR No Yes 10 mg/L Resolved Dec 31, 2009 Nitrate Rule
Mar 1, 2006 Mar 31, 2006 Surface Water Treatment Rule TT Yes No Resolved Mar 31, 2006 Surface Water Treatment Rule
Mar 1, 2006 Mar 31, 2006 Surface Water Treatment Rule TT Yes No Resolved Mar 31, 2006 Surface Water Treatment Rule
Mar 1, 2006 Mar 31, 2006 Surface Water Treatment Rule TT Yes No Resolved Mar 31, 2006 Surface Water Treatment Rule
Jan 1, 2006 Dec 31, 2006 Toluene MR No Yes 1 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 CHLOROBENZENE MR No Yes 0.1 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 p-Dichlorobenzene MR No Yes 0.075 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Vinyl chloride MR No Yes 0.002 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Trichloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Toluene MR No Yes 1 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Vinyl chloride MR No Yes 0.002 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Ethylbenzene MR No Yes 0.7 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Toluene MR No Yes 1 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Tetrachloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Tetrachloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Trichloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Benzene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Toluene MR No Yes 1 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Benzene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Benzene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Trichloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Ethylbenzene MR No Yes 0.7 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Ethylbenzene MR No Yes 0.7 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Tetrachloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Vinyl chloride MR No Yes 0.002 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 CHLOROBENZENE MR No Yes 0.1 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 p-Dichlorobenzene MR No Yes 0.075 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Benzene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Tetrachloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Ethylbenzene MR No Yes 0.7 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 trans-1,2-Dichloroethylene MR No Yes 0.1 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 CHLOROBENZENE MR No Yes 0.1 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 CHLOROBENZENE MR No Yes 0.1 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Trichloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Vinyl chloride MR No Yes 0.002 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 o-Dichlorobenzene MR No Yes 0.6 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Tetrachloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Benzene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Trichloroethylene MR No Yes 0.005 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 p-Dichlorobenzene MR No Yes 0.075 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 Ethylbenzene MR No Yes 0.7 mg/L Resolved Dec 31, 2006 Volatile Organic Chemicals
Jan 1, 2006 Dec 31, 2006 CHLOROBENZENE MR No Yes 0.1 mg/L Resolved Dec 31, 2006 Volatile 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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