Is SISTERS, CITY OF required to publish a Consumer Confidence Report?

Yes. SISTERS, CITY OF 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 SISTERS, CITY OF’s next Consumer Confidence Report due?

SISTERS, CITY OF’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.

SISTERS, OR · Deschutes County

SISTERS, CITY OF Water System

Consumer Confidence Report status

SISTERS, CITY OF 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 SISTERS, CITY OF.

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 Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.

System facts

System ID (PWSID): OR4100826
System type: Community Water System
Population served: 3,778
Service connections: 2,200
Ownership: local government
Water source: groundwater (wells)

SISTERS, CITY OF is one of 63 community water systems in Oregon in the 3,301 to 10,000 people size category, serving 3,778 people from groundwater.

As of August 1, 2026, its federal record holds 81 entries between 1976 and 2015, all of which EPA lists as closed. Nothing has been added since 2015.

Of the 81, 80 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 synthetic organic chemicals, volatile organic chemicals, and the Surface Water Treatment Rules.

Violation history

Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2015 – August 31, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 2013 – March 31, 2013
Resolved
Failure to Conduct Assessment Monitoring
—
COLIPHAGE
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Toluene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Endrin
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Diquat
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Endothall
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
LASSO
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Benzene
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Carbofuran
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Atrazine
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
LASSO
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Heptachlor
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Heptachlor epoxide
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
2,4-D
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
2,4,5-TP
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Chlordane
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Endrin
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
BHC-GAMMA
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Endothall
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Glyphosate
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Simazine
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Picloram
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Dinoseb
July 1, 2008 – September 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2005 – December 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2005 – December 31, 2007
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 1995 – September 30, 1995
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 1995 – August 31, 1995
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 1995 – July 31, 1995
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 1995 – May 31, 1995
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 1995 – April 30, 1995
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 1995 – March 31, 1995
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 1995 – February 28, 1995
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 1994 – September 30, 1994
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 1994 – August 31, 1994
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 1994 – July 31, 1994
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
September 1, 1992 – September 30, 1992
Resolved
Failure to Filter (SWTR)
Health-based
Surface Water Treatment Rule
January 1, 1992 – November 12, 1996
Resolved
Monitoring, Regular
—
Arsenic
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Barium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Cadmium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Chromium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Mercury
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Selenium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Fluoride
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 1, 1976 – May 31, 1980
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
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
August 1, 2015 – August 31, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
March 1, 2013 – March 31, 2013	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2012 – December 31, 2012	Failure to Conduct Assessment Monitoring	COLIPHAGE	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Toluene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Endrin	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Diquat	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Endothall	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	LASSO	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Benzene	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Carbofuran	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Atrazine	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	LASSO	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Heptachlor	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Heptachlor epoxide	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	2,4-D	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	2,4,5-TP	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Chlordane	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Endrin	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	BHC-GAMMA	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Endothall	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Glyphosate	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Simazine	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Picloram	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 1995 – September 30, 1995	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 1995 – August 31, 1995	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 1995 – July 31, 1995	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 1995 – May 31, 1995	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 1995 – April 30, 1995	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
March 1, 1995 – March 31, 1995	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
February 1, 1995 – February 28, 1995	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 1994 – September 30, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 1994 – August 31, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 1994 – July 31, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 1992 – September 30, 1992	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 1992 – November 12, 1996	Failure to Filter (SWTR)	Surface Water Treatment Rule	Health-based	Resolved
June 24, 1979 – June 23, 1980	Monitoring, Regular	Arsenic	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Barium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Cadmium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Chromium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Mercury	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Selenium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Fluoride	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived

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

Enforcement actions

November 12, 1996State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Common questions

Is SISTERS, CITY OF required to publish a Consumer Confidence Report?: Yes. SISTERS, CITY OF 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 SISTERS, CITY OF’s next Consumer Confidence Report due?: SISTERS, CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SISTERS, CITY OF have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for SISTERS, CITY OF.
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

SISTERS, CITY OF

541-323-5212

SISTERS, OR 97759