DELTA WATER ASSOCIATION

Washington — Community Water System — PWSID: WA5318750

System Information

PWSID	WA5318750
System Name	DELTA WATER ASSOCIATION
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	Lynden
ZIP Code	98264
Address	338 Ten Mile Rd
Organization	DELTA WATER ASSOCIATION
Phone	—

Population & Service

Population Served	450
Service Connections	173

Drinking Water Violations (487)

This water system has 487 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, 2024	Mar 31, 2024	Nitrate	MCL	Yes	No	11.1 MG/L	10 mg/L	—	Resolved	Mar 31, 2024	Nitrate Rule
Jan 1, 2024	Mar 31, 2024	Nitrate	MCL	Yes	No	11.1 MG/L	10 mg/L	—	Resolved	Mar 31, 2024	Nitrate Rule
Jan 1, 2024	Mar 31, 2024	Nitrate	MCL	Yes	No	11.1 MG/L	10 mg/L	—	Resolved	Mar 31, 2024	Nitrate Rule
Apr 1, 2023	Jun 30, 2023	Nitrate	MCL	Yes	No	11.4 MG/L	10 mg/L	—	Resolved	Jun 30, 2023	Nitrate Rule
Apr 1, 2023	Jun 30, 2023	Nitrate	MCL	Yes	No	11.4 MG/L	10 mg/L	—	Resolved	Jun 30, 2023	Nitrate Rule
Jan 1, 2023	Dec 31, 2023	Nitrate	MCL	Yes	No	11 MG/L	10 mg/L	—	Resolved	Dec 31, 2023	Nitrate Rule
Jan 1, 2023	Dec 31, 2023	Nitrate	MCL	Yes	No	11.4 MG/L	10 mg/L	—	Resolved	Dec 31, 2023	Nitrate Rule
Jan 1, 2023	Dec 31, 2023	Nitrate	MCL	Yes	No	11.8 MG/L	10 mg/L	—	Resolved	Dec 31, 2023	Nitrate Rule
Jan 1, 2023	Mar 31, 2023	Nitrate	MCL	Yes	No	10.4 MG/L	10 mg/L	—	Resolved	Mar 31, 2023	Nitrate Rule
Jan 1, 2023	Dec 31, 2023	Nitrate	MCL	Yes	No	10.8 MG/L	10 mg/L	—	Resolved	Dec 31, 2023	Nitrate Rule
Jan 1, 2023	Dec 31, 2023	Nitrate	MCL	Yes	No	11 MG/L	10 mg/L	—	Resolved	Dec 31, 2023	Nitrate Rule
Jan 1, 2023	Dec 31, 2023	Nitrate	MCL	Yes	No	10.8 MG/L	10 mg/L	—	Resolved	Dec 31, 2023	Nitrate Rule
Jan 1, 2023	Dec 31, 2023	Nitrate	MCL	Yes	No	11.4 MG/L	10 mg/L	—	Resolved	Dec 31, 2023	Nitrate Rule
Jan 1, 2023	Dec 31, 2023	Nitrate	MCL	Yes	No	11.8 MG/L	10 mg/L	—	Resolved	Dec 31, 2023	Nitrate Rule
Jan 1, 2023	Mar 31, 2023	Nitrate	MCL	Yes	No	10.4 MG/L	10 mg/L	—	Resolved	Mar 31, 2023	Nitrate Rule
Jan 1, 2022	Dec 31, 2022	Nitrate	MCL	Yes	No	11.6 MG/L	10 mg/L	—	Resolved	Dec 31, 2022	Nitrate Rule
Jan 1, 2022	Dec 31, 2022	Nitrate	MCL	Yes	No	11.6 MG/L	10 mg/L	—	Resolved	Dec 31, 2022	Nitrate Rule
Jan 1, 2022	Dec 31, 2022	Nitrate	MCL	Yes	No	13.7 MG/L	10 mg/L	—	Resolved	Dec 31, 2022	Nitrate Rule
Jan 1, 2022	Dec 31, 2022	Nitrate	MCL	Yes	No	13.7 MG/L	10 mg/L	—	Resolved	Dec 31, 2022	Nitrate Rule
Jan 1, 2022	Dec 31, 2022	Nitrate	MCL	Yes	No	11.6 MG/L	10 mg/L	—	Resolved	Dec 31, 2022	Nitrate Rule
Jan 1, 2022	Dec 31, 2022	Nitrate	MCL	Yes	No	13.7 MG/L	10 mg/L	—	Resolved	Dec 31, 2022	Nitrate Rule
Jan 1, 2019	Mar 31, 2019	Nitrate	MCL	Yes	No	14.3 MG/L	10 mg/L	—	Resolved	Mar 31, 2019	Nitrate Rule
Jan 1, 2019	Mar 31, 2019	Nitrate	MCL	Yes	No	14.3 MG/L	10 mg/L	—	Resolved	Mar 31, 2019	Nitrate Rule
Jan 1, 2019	Mar 31, 2019	Nitrate	MCL	Yes	No	14.3 MG/L	10 mg/L	—	Resolved	Mar 31, 2019	Nitrate Rule
Jan 1, 2019	Mar 31, 2019	Nitrate	MCL	Yes	No	14.3 MG/L	10 mg/L	—	Resolved	Mar 31, 2019	Nitrate Rule
Jan 1, 2019	Mar 31, 2019	Nitrate	MCL	Yes	No	14.3 MG/L	10 mg/L	—	Resolved	Mar 31, 2019	Nitrate Rule
Jan 1, 2019	Mar 31, 2019	Nitrate	MCL	Yes	No	14.3 MG/L	10 mg/L	—	Resolved	Mar 31, 2019	Nitrate Rule
Apr 1, 2017	Jun 30, 2017	Nitrate	MCL	Yes	No	21.1 MG/L	10 mg/L	—	Resolved	Jun 30, 2017	Nitrate Rule
Apr 1, 2017	Jun 30, 2017	Nitrate	MCL	Yes	No	16.3 MG/L	10 mg/L	—	Resolved	Jun 30, 2017	Nitrate Rule
Apr 1, 2017	Jun 30, 2017	Nitrate	MCL	Yes	No	16.3 MG/L	10 mg/L	—	Resolved	Jun 30, 2017	Nitrate Rule
Apr 1, 2017	Jun 30, 2017	Nitrate	MCL	Yes	No	21.1 MG/L	10 mg/L	—	Resolved	Jun 30, 2017	Nitrate Rule
Jan 1, 2017	Dec 31, 2017	Nitrate	MCL	Yes	No	16.1 MG/L	10 mg/L	—	Resolved	Dec 31, 2017	Nitrate Rule
Jan 1, 2017	Dec 31, 2017	Nitrate	MCL	Yes	No	14.6 MG/L	10 mg/L	—	Resolved	Dec 31, 2017	Nitrate Rule
Jan 1, 2017	Dec 31, 2017	Nitrate	MCL	Yes	No	14.9 MG/L	10 mg/L	—	Resolved	Dec 31, 2017	Nitrate Rule
Jan 1, 2017	Mar 31, 2017	Nitrate	MCL	Yes	No	17.4 MG/L	10 mg/L	—	Resolved	Mar 31, 2017	Nitrate Rule
Jan 1, 2017	Dec 31, 2017	Nitrate	MCL	Yes	No	16.1 MG/L	10 mg/L	—	Resolved	Dec 31, 2017	Nitrate Rule
Jan 1, 2017	Dec 31, 2017	Nitrate	MCL	Yes	No	14.6 MG/L	10 mg/L	—	Resolved	Dec 31, 2017	Nitrate Rule
Jan 1, 2017	Dec 31, 2017	Nitrate	MCL	Yes	No	14.1 MG/L	10 mg/L	—	Resolved	Dec 31, 2017	Nitrate Rule
Jan 1, 2017	Mar 31, 2017	Nitrate	MCL	Yes	No	17.4 MG/L	10 mg/L	—	Resolved	Mar 31, 2017	Nitrate Rule
Jan 1, 2017	Dec 31, 2017	Nitrate	MCL	Yes	No	14.1 MG/L	10 mg/L	—	Resolved	Dec 31, 2017	Nitrate Rule
Jan 1, 2017	Dec 31, 2017	Nitrate	MCL	Yes	No	14.9 MG/L	10 mg/L	—	Resolved	Dec 31, 2017	Nitrate Rule
Apr 1, 2016	Jun 30, 2016	Nitrate	MCL	Yes	No	12.7 MG/L	10 mg/L	—	Resolved	Jun 30, 2016	Nitrate Rule
Apr 1, 2016	Jun 30, 2016	Nitrate	MCL	Yes	No	14.9 MG/L	10 mg/L	—	Resolved	Jun 30, 2016	Nitrate Rule
Apr 1, 2016	Jun 30, 2016	Nitrate	MCL	Yes	No	14.9 MG/L	10 mg/L	—	Resolved	Jun 30, 2016	Nitrate Rule
Apr 1, 2016	Jun 30, 2016	Nitrate	MCL	Yes	No	12.7 MG/L	10 mg/L	—	Resolved	Jun 30, 2016	Nitrate Rule
Jan 1, 2016	Mar 31, 2016	Nitrate	MCL	Yes	No	11.4 MG/L	10 mg/L	—	Resolved	Mar 31, 2016	Nitrate Rule
Jan 1, 2016	Mar 31, 2016	Nitrate	MCL	Yes	No	11.4 MG/L	10 mg/L	—	Resolved	Mar 31, 2016	Nitrate Rule
Jan 1, 2016	Mar 31, 2016	Nitrate	MCL	Yes	No	12.2 MG/L	10 mg/L	—	Resolved	Mar 31, 2016	Nitrate Rule
Jan 1, 2016	Mar 31, 2016	Nitrate	MCL	Yes	No	12.2 MG/L	10 mg/L	—	Resolved	Mar 31, 2016	Nitrate Rule
Apr 1, 2015	Jun 30, 2015	Nitrate	MCL	Yes	No	13.7 MG/L	10 mg/L	—	Resolved	Jun 30, 2015	Nitrate 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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