ADAMS WATER DEPT, CITY OF

Oregon — Community Water System — PWSID: OR4100001

System Information

PWSID	OR4100001
System Name	ADAMS WATER DEPT, CITY OF
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	Mar 12, 1979
Last Reported	Dec 23, 2025

Location & Contact

State	Oregon
City	ADAMS
ZIP Code	97810
Address	PO BOX 20
Organization	ADAMS WATER DEPT, CITY OF
Phone	541-566-9380

Population & Service

Population Served	400
Service Connections	170

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, 2023	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 31, 2023	Consumer Confidence Rule
Nov 1, 2011	Nov 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2011	Total Coliform Rule
Nov 1, 2011	Nov 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2011	Total Coliform Rule
Nov 1, 2011	Nov 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2011	Total Coliform Rule
Nov 1, 2011	Nov 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2011	Total Coliform Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jun 1, 2004	Jun 30, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 2004	Total Coliform Rule
Sep 1, 1999	Sep 30, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 1999	Total Coliform Rule
Sep 1, 1999	Sep 30, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 1999	Total Coliform Rule
Sep 1, 1999	Sep 30, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1999	Total Coliform Rule
Sep 1, 1999	Sep 30, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1999	Total Coliform Rule
Aug 1, 1999	Aug 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 1999	Total Coliform Rule
Aug 1, 1999	Aug 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 1999	Total Coliform Rule
Mar 1, 1998	Mar 31, 1998	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 1998	Total Coliform Rule
Nov 1, 1997	Nov 30, 1997	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Nov 30, 1997	Total Coliform Rule
Oct 1, 1996	Oct 31, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 1996	Total Coliform Rule
Oct 1, 1996	Oct 31, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 1996	Total Coliform Rule
Aug 1, 1996	Aug 31, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 1996	Total Coliform Rule
Jul 1, 1996	Jul 31, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jul 31, 1996	Total Coliform Rule
Jul 1, 1994	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	May 1, 1995	Lead and Copper Rule
May 1, 1994	May 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 1994	Total Coliform Rule
Jun 1, 1993	Jun 30, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 1993	Total Coliform Rule
Jun 1, 1976	May 31, 1980	Gross Alpha, Excl. Radon and U	MR	No	No	—	15 pCi/L	—	Archived	May 31, 1980	Radionuclides and Revised Rad Rule
Jun 1, 1976	May 31, 1980	Combined Radium (-226 and -228)	MR	No	No	—	5 pCi/L	—	Archived	May 31, 1980	Radionuclides and Revised Rad Rule
—	—		—	No	No	—	—	—	—	—	—

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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