HILLSBORO, OR · Washington County

HILLSBORO-CHERRY GROVE Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.

System facts

System ID (PWSID): OR4100985
System type: Community Water System
Population served: 1,628
Service connections: 577
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025 – July 8, 2025
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
July 1, 2023 – July 31, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2023 – July 31, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2023 – July 31, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2019 – August 31, 2019
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
August 1, 2019 – August 31, 2019
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2019 – August 31, 2019
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2014 – October 31, 2014
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2014 – October 31, 2014
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2014 – October 31, 2014
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2009 – December 31, 2009
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2009 – December 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2009 – January 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2009 – January 31, 2009
Resolved
Monitoring, Regular
—
Toluene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2007 – December 31, 2007
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2000 – March 31, 2000
Resolved
Failure to Filter (SWTR)
Health-based
Surface Water Treatment Rule
January 1, 1992 – October 1, 1993
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 1991 – November 30, 1991
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1991 – July 31, 1991
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
June 1, 1976 – May 31, 1980
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 1, 1976 – May 31, 1980
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, 2025 – July 8, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2023 – July 31, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2023 – July 31, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2023 – July 31, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2019 – August 31, 2019	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2019 – August 31, 2019	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
August 1, 2019 – August 31, 2019	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2014 – October 31, 2014	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2014 – October 31, 2014	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2014 – October 31, 2014	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2009 – December 31, 2009	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
December 1, 2009 – December 31, 2009	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2009 – January 31, 2009	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2009 – January 31, 2009	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Toluene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
March 1, 2000 – March 31, 2000	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 1992 – October 1, 1993	Failure to Filter (SWTR)	Surface Water Treatment Rule	Health-based	Resolved
November 1, 1991 – November 30, 1991	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1991 – July 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 1976 – May 31, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

July 8, 2025State Compliance achieved2 linked violations
December 1, 2014State Compliance achieved4 linked violations
August 16, 2010State Compliance achieved3 linked violations
December 11, 2000State Compliance achieved1 linked violation
October 27, 2000State Compliance achieved1 linked violation
August 17, 2000State Compliance achieved1 linked violation
October 1, 1993State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Contact

HILLSBORO-CHERRY GROVE

503-615-6579

HILLSBORO, OR 97123