Maple Falls, WA · Whatcom County
Columbia Valley Water District Water System
Consumer Confidence Report status
Columbia Valley Water 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 no open violations for Columbia Valley Water District.
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 Washington’s official records. Always confirm current status with Washington before making decisions based on this information.
System facts
- System ID (PWSID)
- WA5366110
- System type
- Community Water System
- Population served
- 2,648
- Service connections
- 1,613
- Ownership
- local government
- Water source
- groundwater (wells)
Columbia Valley Water District is one of 428 community water systems in Washington in the 501 to 3,300 people size category, serving 2,648 people from groundwater.
As of August 1, 2026, its federal record holds 15 entries between 1979 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.
Of the 15, 11 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 inorganic chemicals, the Consumer Confidence Rule, and the Total Coliform Rules.
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2016 – October 4, 2016
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2015 – September 9, 2015
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2011 – September 1, 2011
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2010 – October 13, 2010
ResolvedMonitoring, Regular
—Nitrate
January 1, 2005 – December 31, 2005
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
March 1, 1995 – March 31, 1995
ArchivedMonitoring, Regular
—Arsenic
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Barium
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Cadmium
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Chromium
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Fluoride
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Mercury
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Nitrate
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Selenium
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
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, 2016 – October 4, 2016 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2015 – September 9, 2015 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2011 – September 1, 2011 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2010 – October 13, 2010 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2005 – December 31, 2005 | Monitoring, Regular | Nitrate | — | Resolved |
| March 1, 1995 – March 31, 1995 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Arsenic | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Barium | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Cadmium | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Chromium | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Fluoride | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Mercury | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Nitrate | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Selenium | — | Archived |
| October 1, 1979 – October 31, 1979 | 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
- October 4, 2016State Compliance achieved1 linked violation
- September 9, 2015State Compliance achieved1 linked violation
- September 16, 2014State Compliance achieved1 linked violation
- September 1, 2011State Compliance achieved1 linked violation
- October 13, 2010State Compliance achieved1 linked violation
- January 1, 2006State Compliance achieved7 linked violations
- September 24, 1993Federal issued Formal Notice of Violation1 linked violation
Common questions
Is Columbia Valley Water District required to publish a Consumer Confidence Report?
- Yes. Columbia Valley Water 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 Columbia Valley Water District’s next Consumer Confidence Report due?
- Columbia Valley Water District’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Columbia Valley Water District have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Columbia Valley Water District.
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
Columbia Valley Water District
Phone not on record
Maple Falls, WA 98266