ADAMS COUNTY WATER DIST #1

Washington — Community Water System — PWSID: WA5322525

System Information

PWSID	WA5322525
System Name	ADAMS COUNTY WATER DIST #1
System Type	Community Water System
Water Source	Ground Water Purchased
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	Othello
ZIP Code	99344
Address	124 S. Broadway
Organization	ADAMS COUNTY WATER DIST #1
Phone	—

Population & Service

Population Served	870
Service Connections	299

Drinking Water Violations (25)

This water system has 25 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, 2024	—	Consumer Confidence Rule	Other	No	No	—	—	—	Unaddressed	—	Consumer Confidence Rule
Jul 1, 2014	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Nov 5, 2014	Consumer Confidence Rule
Jan 1, 2014	Dec 31, 2014	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2014	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014	Dec 31, 2014	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2014	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2013	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 16, 2013	Consumer Confidence Rule
Jan 1, 2012	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 1, 2015	Lead and Copper Rule
Jul 1, 2011	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 12, 2011	Consumer Confidence Rule
Jan 1, 2011	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 1, 2015	Lead and Copper Rule
Feb 1, 2010	Feb 28, 2010	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 2010	Total Coliform Rule
Sep 1, 2004	Sep 30, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Sep 30, 2004	Total Coliform Rule
Feb 1, 1994	Feb 28, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Feb 28, 1994	Total Coliform Rule
Jan 1, 1993	Jan 31, 1993	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jan 31, 1993	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Dec 31, 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
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Sep 30, 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
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	Chromium	MR	No	No	—	0.1 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	Fluoride	MR	No	No	—	4.0 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	Arsenic	MR	No	No	—	0.010 mg/L	—	Archived	Oct 31, 1979	Arsenic 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	Selenium	MR	No	No	—	0.05 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
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

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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