Tonasket, WA · Douglas County
WITHROW WATER WORKS Water System
Consumer Confidence Report status
WITHROW WATER WORKS 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 WITHROW WATER WORKS.
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)
- WA5398000
- System type
- Community Water System
- Population served
- 60
- Service connections
- 22
- Ownership
- local government
- Water source
- groundwater (wells)
WITHROW WATER WORKS is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 60 people from groundwater.
As of August 1, 2026, its federal record holds 14 entries between 1979 and 2024, all of which EPA lists as closed.
Of the 14, 13 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 Total Coliform Rules, and the Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Routine (RTCR)
—Revised Total Coliform Rule
April 1, 2024 – April 30, 2024
ResolvedMonitoring, Regular
—Nitrate
July 1, 2017 – September 30, 2017
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Nitrate
January 1, 2006 – December 31, 2006
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
October 1, 1991 – October 31, 1991
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 |
|---|---|---|---|---|
| April 1, 2024 – April 30, 2024 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2016 – December 31, 2016 | Maximum Contaminant Level Violation, Single Sample | Nitrate | Health-based | Resolved |
| January 1, 2006 – December 31, 2006 | Monitoring, Regular | Nitrate | — | Resolved |
| October 1, 1991 – October 31, 1991 | 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
- May 20, 2024State Compliance achieved1 linked violation
- October 3, 2017State Compliance achieved1 linked violation
- July 1, 2017State Compliance achieved1 linked violation
- January 1, 2007State Compliance achieved2 linked violations
- January 1, 2007State Compliance achieved3 linked violations
- July 30, 2003Federal Compliance achieved1 linked violation
Common questions
Is WITHROW WATER WORKS required to publish a Consumer Confidence Report?
- Yes. WITHROW WATER WORKS 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 WITHROW WATER WORKS’s next Consumer Confidence Report due?
- WITHROW WATER WORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WITHROW WATER WORKS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for WITHROW WATER WORKS.
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
WITHROW WATER WORKS
Phone not on record
Tonasket, WA 98855-9433