SHIRONA WATER SYSTEM

Washington — Community Water System — PWSID: WA5378373

System Information

PWSID	WA5378373
System Name	SHIRONA WATER SYSTEM
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Private
EPA Region	10
Serves School	No
Wholesaler	No
First Reported	Feb 7, 1981
Last Reported	Dec 11, 2025

Location & Contact

State	Washington
City	Coupeville
ZIP Code	98239
Address	102 SW Terry Rd
Organization	SHIRONA WATER SYSTEM
Phone	—

Population & Service

Population Served	243
Service Connections	102

Drinking Water Violations (37)

This water system has 37 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	Oct 6, 2025	Consumer Confidence Rule
Jul 1, 2023	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 1, 2024	Consumer Confidence Rule
Jan 1, 2021	Dec 31, 2023	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2023	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021	Dec 31, 2023	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2023	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020	Dec 31, 2022	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2022	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020	Dec 31, 2022	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2022	Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2004	Apr 30, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 2004	Total Coliform Rule
May 1, 1998	May 31, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	May 31, 1998	Total Coliform Rule
May 1, 1998	May 31, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	May 31, 1998	Total Coliform Rule
May 1, 1998	May 31, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	May 31, 1998	Total Coliform Rule
Feb 1, 1998	Feb 28, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Feb 28, 1998	Total Coliform Rule
Feb 1, 1998	Feb 28, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Feb 28, 1998	Total Coliform Rule
Feb 1, 1998	Feb 28, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Feb 28, 1998	Total Coliform Rule
Sep 1, 1994	Sep 30, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1994	Total Coliform Rule
Jan 1, 1994	Jan 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jan 31, 1994	Total Coliform Rule
Nov 1, 1992	Nov 30, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Nov 30, 1992	Total Coliform Rule
Oct 1, 1992	Oct 31, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Oct 31, 1992	Total Coliform Rule
Oct 1, 1992	Oct 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Oct 31, 1992	Total Coliform Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1992	Total Coliform Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1992	Total Coliform Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1992	Total Coliform Rule
May 1, 1992	May 31, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	May 31, 1992	Total Coliform Rule
Apr 1, 1992	Apr 30, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Apr 30, 1992	Total Coliform Rule
Feb 1, 1992	Feb 29, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Feb 29, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jan 31, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jan 31, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jan 31, 1992	Total Coliform Rule
Dec 1, 1991	Dec 31, 1991	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Dec 31, 1991	Total Coliform Rule
Oct 1, 1979	Oct 31, 1979	Mercury	MR	No	No	—	0.002 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Fluoride	MR	No	No	—	4.0 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Cadmium	MR	No	No	—	0.005 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Barium	MR	No	No	—	2 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Chromium	MR	No	No	—	0.1 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Selenium	MR	No	No	—	0.05 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Nitrate	MR	No	No	—	10 mg/L	—	Archived	Oct 31, 1979	Nitrate Rule
Oct 1, 1979	Oct 31, 1979	Gross Alpha, Excl. Radon and U	MR	No	No	—	15 pCi/L	—	Archived	Oct 31, 1979	Radionuclides and Revised Rad Rule
Oct 1, 1979	Oct 31, 1979	Arsenic	MR	No	No	—	0.010 mg/L	—	Archived	Oct 31, 1979	Arsenic 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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