Is UNION HILL WATER ASSOCIATION INC required to publish a Consumer Confidence Report?

Yes. UNION HILL WATER ASSOCIATION INC is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is UNION HILL WATER ASSOCIATION INC’s next Consumer Confidence Report due?

UNION HILL WATER ASSOCIATION INC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Redmond, WA · King County

UNION HILL WATER ASSOCIATION INC Water System

Consumer Confidence Report status

UNION HILL WATER ASSOCIATION INC must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for UNION HILL WATER ASSOCIATION INC.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Washington’s official records. Always confirm current status with Washington before making decisions based on this information.

System facts

System ID (PWSID): WA5390260
System type: Community Water System
Population served: 8,720
Service connections: 2,104
Ownership: privately owned
Water source: groundwater (wells)

UNION HILL WATER ASSOCIATION INC is one of 112 community water systems in Washington in the 3,301 to 10,000 people size category, serving 8,720 people from groundwater.

As of August 1, 2026, its federal record holds 73 entries between 1992 and 2013, all of which EPA lists as closed. Nothing has been added since 2013.

Of the 73, 71 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, synthetic organic chemicals, and the Total Coliform Rules.

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – September 13, 2013
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Simazine
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
LASSO
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Picloram
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Benzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Toluene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Styrene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Endrin
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
Benzene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
Toluene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Regular
—
Styrene
January 1, 2002 – December 31, 2004
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2000 – June 30, 2000
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 1999 – November 30, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1997 – May 31, 1997
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 1992 – December 31, 1992
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2013 – September 13, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Simazine	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	LASSO	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Picloram	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Aldicarb sulfone	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Benzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Toluene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Styrene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Endrin	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Benzene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Toluene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Styrene	—	Archived
June 1, 2000 – June 30, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1999 – November 30, 1999	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
May 1, 1997 – May 31, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
December 1, 1992 – December 31, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

September 13, 2013State Compliance achieved1 linked violation
September 22, 2010State Compliance achieved1 linked violation
April 1, 2005State Compliance achieved91 linked violations
April 1, 2005State Compliance achieved48 linked violations
April 1, 2005State Compliance achieved107 linked violations
May 31, 1997State Public Notification requested6 linked violations
December 31, 1992State Violation/Reminder Notice2 linked violations

Common questions

Is UNION HILL WATER ASSOCIATION INC required to publish a Consumer Confidence Report?: Yes. UNION HILL WATER ASSOCIATION INC is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is UNION HILL WATER ASSOCIATION INC’s next Consumer Confidence Report due?: UNION HILL WATER ASSOCIATION INC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does UNION HILL WATER ASSOCIATION INC have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for UNION HILL WATER ASSOCIATION INC.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

UNION HILL WATER ASSOCIATION INC

Phone not on record

Redmond, WA 98053