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

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

THE DALLES, 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.

THE DALLES, OR · Wasco County

THE DALLES, CITY OF Water System

Consumer Confidence Report status

THE DALLES, 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 2 items for THE DALLES, CITY OF 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): OR4100869
System type: Community Water System
Population served: 13,010
Service connections: 5,408
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

THE DALLES, CITY OF is one of 63 community water systems in Oregon in the 10,001 to 100,000 people size category, serving 13,010 people from surface water.

As of August 1, 2026, its federal record holds 25 entries between 1976 and 2026, of which 2 remain open; none are health-based.

All 25 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 Stage 2 Disinfectants and Disinfection Byproducts Rule, the Lead and Copper Rule, and the Radionuclides and Revised Rad Rule.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2026
Unaddressed
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2026
Unaddressed
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Combined Uranium
October 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2025 – December 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2025 – December 31, 2025
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, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
July 1, 2023 – July 31, 2023
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2023 – September 7, 2023
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2023 – September 7, 2023
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2023 – September 7, 2023
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2023 – September 7, 2023
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2023 – January 5, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2019 – March 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2019 – March 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2018 – December 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2018 – December 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2014 – June 30, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2014 – June 30, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2009 – March 31, 2009
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2002 – April 30, 2002
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 yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2026	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
January 1, 2026	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Unaddressed
October 1, 2025 – December 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 2025 – December 31, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
October 1, 2025 – December 31, 2025	Monitoring, Regular	Combined Uranium	—	Archived
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	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
July 1, 2023 – July 31, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2023 – September 7, 2023	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
July 1, 2023 – September 7, 2023	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
July 1, 2023 – September 7, 2023	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
July 1, 2023 – September 7, 2023	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
July 1, 2023 – January 5, 2024	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2018 – December 31, 2018	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2018 – December 31, 2018	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
March 1, 2009 – March 31, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2002 – April 30, 2002	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	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 yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

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

THE DALLES, CITY OF

541-298-2248

THE DALLES, OR 97058