Is THURSTON OAKS MHP required to publish a Consumer Confidence Report?

Yes. THURSTON OAKS MHP 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 THURSTON OAKS MHP’s next Consumer Confidence Report due?

THURSTON OAKS MHP’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.

PORTLAND, OR · Lane County

THURSTON OAKS MHP Water System

Consumer Confidence Report status

THURSTON OAKS MHP 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 THURSTON OAKS MHP 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): OR4100841
System type: Community Water System
Population served: 38
Service connections: 21
Ownership: privately owned
Water source: groundwater (wells)

THURSTON OAKS MHP is one of 1,168 community water systems in Oregon in the 500 or fewer people size category, serving 38 people from groundwater.

As of August 1, 2026, its federal record holds 15 entries between 1976 and 2025, of which 2 remain open; none are health-based.

Of the 15, 12 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 the Total Coliform Rules, the Consumer Confidence Rule, and the Groundwater Rule.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2025
Unaddressed
Failure to Conduct Assessment Monitoring
—
COLIPHAGE
October 1, 2025 – October 31, 2025
Resolved
Failure to Conduct Assessment Monitoring
—
COLIPHAGE
July 1, 2025 – July 31, 2025
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2024
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – January 9, 2026
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2000 – August 9, 2004
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 1995 – September 30, 1995
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 1995 – July 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1995 – March 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1994 – September 30, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1993 – July 31, 1993
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
June 1, 1993 – June 30, 1993
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
October 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
October 1, 2025 – October 31, 2025	Failure to Conduct Assessment Monitoring	COLIPHAGE	—	Resolved
July 1, 2025 – July 31, 2025	Failure to Conduct Assessment Monitoring	COLIPHAGE	—	Resolved
October 1, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
July 1, 2024 – January 9, 2026	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2000 – August 9, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Thallium, Total	—	Resolved
September 1, 1995 – September 30, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1995 – July 31, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
March 1, 1995 – March 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1994 – September 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1993 – July 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1993 – June 30, 1993	Monitoring, Repeat Minor (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

January 23, 2026State Compliance achieved2 linked violations
January 9, 2026State Compliance achieved2 linked violations
September 9, 2025State Compliance achieved2 linked violations
August 7, 2023State Compliance achieved1 linked violation
November 11, 2004State Compliance achieved1 linked violation
August 9, 2004State Compliance achieved2 linked violations
October 21, 2002State Compliance achieved1 linked violation
March 1, 1997State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 30, 1996State Public Notification received2 linked violations
July 10, 1995State Compliance achieved1 linked violation
May 1, 1995State Public Notification received1 linked violation
February 3, 1995State Public Notification received1 linked violation
October 20, 1994State Public Notification received1 linked violation

Common questions

Is THURSTON OAKS MHP required to publish a Consumer Confidence Report?: Yes. THURSTON OAKS MHP 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 THURSTON OAKS MHP’s next Consumer Confidence Report due?: THURSTON OAKS MHP’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does THURSTON OAKS MHP have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for THURSTON OAKS MHP 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

THURSTON OAKS MHP

503-372-9748

PORTLAND, OR 97224