Is CIRCLE C IMPROVEMENT DISTRICT required to publish a Consumer Confidence Report?

Yes. CIRCLE C IMPROVEMENT DISTRICT 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 CIRCLE C IMPROVEMENT DISTRICT’s next Consumer Confidence Report due?

CIRCLE C IMPROVEMENT DISTRICT’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.

TERREBONNE, OR · Deschutes County

CIRCLE C IMPROVEMENT DISTRICT Water System

Consumer Confidence Report status

CIRCLE C IMPROVEMENT DISTRICT 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 2 items for CIRCLE C IMPROVEMENT DISTRICT that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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): OR4100861
System type: Community Water System
Population served: 150
Service connections: 75
Ownership: local government
Water source: groundwater (wells)

CIRCLE C IMPROVEMENT DISTRICT is one of 1,168 community water systems in Oregon in the 500 or fewer people size category, serving 150 people from groundwater.

As of August 1, 2026, its federal record holds 78 entries between 1976 and 2026, of which 2 remain open; none are health-based.

Of the 78, 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 synthetic organic chemicals, volatile organic chemicals, and the Total Coliform Rules.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2026
Unaddressed
Monitoring, Regular
—
Toluene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Combined Uranium
July 1, 2025 – September 30, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025 – August 25, 2025
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2024
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2024 – November 18, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – November 18, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – September 20, 2023
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2020 – December 31, 2020
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2008 – August 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2005 – July 31, 2005
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 19, 2003 – June 25, 2004
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2003 – October 31, 2003
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 2003 – September 30, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2003 – August 31, 2003
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – July 14, 2004
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2002 – October 31, 2002
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 2002 – September 30, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2001 – June 30, 2001
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2001 – December 31, 2001
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1999 – February 28, 1999
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Picloram
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Simazine
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Nickel
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Benzene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Styrene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
2,4-D
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
LASSO
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Chlordane
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Dalapon
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Endrin
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1998 – August 31, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1998 – July 31, 1998
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1996 – June 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1996 – April 30, 1996
Resolved
Monitoring, Regular
—
Chromium
January 1, 1996 – December 31, 1998
Resolved
Monitoring, Regular
—
Cadmium
January 1, 1996 – December 31, 1998
Resolved
Monitoring, Regular
—
Mercury
January 1, 1996 – December 31, 1998
Resolved
Monitoring, Regular
—
Fluoride
January 1, 1996 – December 31, 1998
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1996 – December 31, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1994 – September 30, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1992 – May 31, 1992
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

Unaddressed no corrective action on record yetResolved 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
January 1, 2026	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
July 1, 2025 – September 30, 2025	Monitoring, Regular	Toluene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Combined Uranium	—	Resolved
July 1, 2025 – August 25, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
October 1, 2024 – November 18, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2024 – November 18, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2023 – September 20, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Nitrate	—	Resolved
August 1, 2008 – August 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2005 – July 31, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 19, 2003 – June 25, 2004	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2003 – October 31, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2003 – September 30, 2003	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2003 – August 31, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2003 – July 14, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2002 – October 31, 2002	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2002 – September 30, 2002	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2001 – June 30, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2001 – December 31, 2001	Monitoring, Regular	Nitrate	—	Resolved
February 1, 1999 – February 28, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Picloram	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Simazine	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Arsenic	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Nickel	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Benzene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Styrene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	2,4-D	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	LASSO	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Chlordane	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Dalapon	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Endrin	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
August 1, 1998 – August 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1998 – July 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	Nitrate	—	Resolved
June 1, 1996 – June 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1996 – April 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1996 – December 31, 1998	Monitoring, Regular	Chromium	—	Resolved
January 1, 1996 – December 31, 1998	Monitoring, Regular	Cadmium	—	Resolved
January 1, 1996 – December 31, 1998	Monitoring, Regular	Mercury	—	Resolved
January 1, 1996 – December 31, 1998	Monitoring, Regular	Fluoride	—	Resolved
January 1, 1996 – December 31, 1996	Monitoring, Regular	Nitrate	—	Resolved
September 1, 1994 – September 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1992 – May 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	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

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

December 5, 2025State Compliance achieved1 linked violation
December 5, 2025State Compliance achieved1 linked violation
December 5, 2025State Compliance achieved1 linked violation
December 5, 2025State Compliance achieved1 linked violation
August 25, 2025State Compliance achieved1 linked violation
November 18, 2024State Compliance achieved2 linked violations
September 20, 2023State Compliance achieved1 linked violation
February 8, 2021State Compliance achieved1 linked violation
August 20, 2004State Compliance achieved4 linked violations
June 25, 2004State Compliance achieved1 linked violation
May 1, 2002State Compliance achieved4 linked violations
January 9, 2002State Compliance achieved13 linked violations
January 9, 2002State Compliance achieved29 linked violations
January 9, 2002State Compliance achieved21 linked violations
November 23, 1999State Administrative/Compliance Order with penalty issued7 linked violations

Common questions

Is CIRCLE C IMPROVEMENT DISTRICT required to publish a Consumer Confidence Report?: Yes. CIRCLE C IMPROVEMENT DISTRICT 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 CIRCLE C IMPROVEMENT DISTRICT’s next Consumer Confidence Report due?: CIRCLE C IMPROVEMENT DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CIRCLE C IMPROVEMENT DISTRICT have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for CIRCLE C IMPROVEMENT DISTRICT that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

CIRCLE C IMPROVEMENT DISTRICT

541-420-5135

TERREBONNE, OR 97760