JEFFERSON COUNTY WATER DIST #1

Washington — Community Water System — PWSID: WA5336705

System Information

PWSID	WA5336705
System Name	JEFFERSON COUNTY WATER DIST #1
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	10
Serves School	No
Wholesaler	No
First Reported	Feb 7, 1981
Last Reported	Dec 11, 2025

Location & Contact

State	Washington
City	Port Ludlow
ZIP Code	98365
Address	141 West Alder St
Organization	JEFFERSON COUNTY WATER DIST #1
Phone	—

Population & Service

Population Served	600
Service Connections	203

Drinking Water Violations (61)

This water system has 61 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	Sep 30, 2025	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Archived	Sep 30, 2025	Arsenic Rule
Jan 1, 2024	Dec 31, 2024	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2024	Nitrate Rule
Jan 1, 2024	Dec 31, 2024	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2024	Nitrate Rule
Jan 1, 2024	Dec 31, 2024	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2024	Nitrate Rule
Jan 1, 2024	Dec 31, 2024	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2024	Nitrate Rule
Jul 1, 2023	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 19, 2024	Consumer Confidence Rule
Jan 1, 2022	—	Lead and Copper Rule	MR	No	No	—	TT	—	Unaddressed	—	Lead and Copper Rule
Jul 1, 2021	Sep 30, 2021	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2021	Arsenic Rule
Jan 1, 2020	Dec 31, 2020	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2020	Nitrate Rule
Jan 1, 2020	Dec 31, 2020	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2020	Nitrate Rule
Jan 1, 2017	Mar 31, 2017	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2017	Arsenic Rule
Jul 1, 2015	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Nov 3, 2015	Consumer Confidence Rule
Jan 1, 2015	Dec 31, 2015	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2015	Nitrate Rule
Jan 1, 2015	Mar 31, 2015	Arsenic	MCL	Yes	No	.0112 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2015	Arsenic Rule
Jan 1, 2015	Mar 31, 2015	Arsenic	MCL	Yes	No	.0112 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2015	Arsenic Rule
Jan 1, 2015	Dec 31, 2015	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2015	Nitrate Rule
Oct 1, 2014	Dec 31, 2014	Arsenic	MCL	Yes	No	.0111 MG/L	0.010 mg/L	—	Resolved	Dec 30, 2014	Arsenic Rule
Oct 1, 2014	Dec 31, 2014	Arsenic	MCL	Yes	No	.0111 MG/L	0.010 mg/L	—	Resolved	Dec 30, 2014	Arsenic Rule
Jul 1, 2014	Sep 30, 2014	Arsenic	MCL	Yes	No	.0113 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2014	Arsenic Rule
Jul 1, 2014	Sep 30, 2014	Arsenic	MCL	Yes	No	.0113 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2014	Arsenic Rule
Apr 1, 2014	Jun 30, 2014	Arsenic	MCL	Yes	No	.0108 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2014	Arsenic Rule
Apr 1, 2014	Jun 30, 2014	Arsenic	MCL	Yes	No	.0108 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2014	Arsenic Rule
Jan 1, 2014	Mar 31, 2014	Arsenic	MCL	Yes	No	.0115 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2014	Arsenic Rule
Jan 1, 2014	Mar 31, 2014	Arsenic	MCL	Yes	No	.0115 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2014	Arsenic Rule
Oct 1, 2013	Dec 31, 2013	Arsenic	MCL	Yes	No	.0114 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2013	Arsenic Rule
Oct 1, 2013	Dec 31, 2013	Arsenic	MCL	Yes	No	.0114 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2013	Arsenic Rule
Jul 1, 2013	Sep 30, 2013	Arsenic	MCL	Yes	No	.0111 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2013	Arsenic Rule
Jul 1, 2013	Sep 30, 2013	Arsenic	MCL	Yes	No	.0111 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2013	Arsenic Rule
Jul 1, 2013	Sep 30, 2013	Arsenic	MCL	Yes	No	.0111 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2013	Arsenic Rule
Apr 1, 2013	Jun 30, 2013	Arsenic	MCL	Yes	No	.0114 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2013	Arsenic Rule
Apr 1, 2013	Jun 30, 2013	Arsenic	MCL	Yes	No	.0114 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2013	Arsenic Rule
Jan 1, 2013	Mar 31, 2013	Arsenic	MCL	Yes	No	.0105 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2013	Arsenic Rule
Jan 1, 2013	Mar 31, 2013	Arsenic	MCL	Yes	No	.0105 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2013	Arsenic Rule
Oct 1, 2012	Dec 31, 2012	Arsenic	MCL	Yes	No	.0105 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2012	Arsenic Rule
Oct 1, 2012	Dec 31, 2012	Arsenic	MCL	Yes	No	.0105 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2012	Arsenic Rule
Oct 1, 2012	Dec 31, 2012	Arsenic	MCL	Yes	No	.0105 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2012	Arsenic Rule
Apr 1, 2012	Jun 30, 2012	Arsenic	MCL	Yes	No	.0105 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2012	Arsenic Rule
Apr 1, 2012	Jun 30, 2012	Arsenic	MCL	Yes	No	.0105 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2012	Arsenic Rule
Apr 1, 2012	Jun 30, 2012	Arsenic	MCL	Yes	No	.0105 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2012	Arsenic Rule
Jan 1, 2012	Mar 31, 2012	Arsenic	MCL	Yes	No	.0113 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2012	Arsenic Rule
Jan 1, 2012	Mar 31, 2012	Arsenic	MCL	Yes	No	.0113 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2012	Arsenic Rule
Jan 1, 2012	Mar 31, 2012	Arsenic	MCL	Yes	No	.0113 MG/L	0.010 mg/L	—	Resolved	Mar 31, 2012	Arsenic Rule
Oct 1, 2011	Dec 31, 2011	Arsenic	MCL	Yes	No	.0118 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2011	Arsenic Rule
Oct 1, 2011	Dec 31, 2011	Arsenic	MCL	Yes	No	.0118 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2011	Arsenic Rule
Oct 1, 2011	Dec 31, 2011	Arsenic	MCL	Yes	No	.0118 MG/L	0.010 mg/L	—	Resolved	Dec 31, 2011	Arsenic Rule
Jul 1, 2011	Sep 30, 2011	Arsenic	MCL	Yes	No	.0125 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2011	Arsenic Rule
Jul 1, 2011	Sep 30, 2011	Arsenic	MCL	Yes	No	.0125 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2011	Arsenic Rule
Jul 1, 2011	Sep 30, 2011	Arsenic	MCL	Yes	No	.0125 MG/L	0.010 mg/L	—	Resolved	Sep 30, 2011	Arsenic Rule
Apr 1, 2011	Jun 30, 2011	Arsenic	MCL	Yes	No	.0123 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2011	Arsenic Rule
Apr 1, 2011	Jun 30, 2011	Arsenic	MCL	Yes	No	.0123 MG/L	0.010 mg/L	—	Resolved	Jun 30, 2011	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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