KITTITAS COUNTY WATER DISTRICT #4

Washington — Community Water System — PWSID: WA5342447

System Information

PWSIDWA5342447
System NameKITTITAS COUNTY WATER DISTRICT #4
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedDec 7, 1987
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityThorp
ZIP Code98946
AddressPO Box 86
OrganizationKITTITAS COUNTY WATER DISTRICT #4
Phone

Population & Service

Population Served510
Service Connections116

Drinking Water Violations (13)

This water system has 13 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 Consumer Confidence Rule Other No No Resolved Oct 4, 2023 Consumer Confidence Rule
Jan 1, 2020 Dec 31, 2020 TTHM MR No Yes 0.080 mg/L Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Dec 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes 0.060 mg/L Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2011 Consumer Confidence Rule Other No No Resolved Nov 3, 2011 Consumer Confidence Rule
Apr 1, 2005 Apr 30, 2005 Coliform (TCR) MR No No 5% of samples Archived Apr 30, 2005 Total Coliform 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
Oct 1, 1993 Oct 31, 1993 Coliform (TCR) MR No Yes 5% of samples Archived Oct 31, 1993 Total Coliform Rule
Jan 1, 1992 Jan 31, 1992 Coliform (TCR) MR No No 5% of samples Archived Jan 31, 1992 Total Coliform Rule
Dec 1, 1991 Dec 31, 1991 Coliform (TCR) MR No Yes 5% of samples Archived Dec 31, 1991 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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