UNION, WA · Mason County
TWANOH HEIGHTS COMMUNITY CLUB Water System
Consumer Confidence Report status
TWANOH HEIGHTS COMMUNITY CLUB 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 TWANOH HEIGHTS COMMUNITY CLUB.
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)
- WA5300153
- System type
- Community Water System
- Population served
- 118
- Service connections
- 47
- Ownership
- local government
- Water source
- groundwater (wells)
TWANOH HEIGHTS COMMUNITY CLUB is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 118 people from groundwater.
As of August 1, 2026, its federal record holds 14 entries between 1979 and 2005, all of which EPA lists as closed. Nothing has been added since 2005.
Of the 14, 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 Total Coliform Rules, and synthetic organic chemicals.
Violation history
Monitoring, Regular
—Diquat
January 1, 2005 – December 31, 2007
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
December 1, 1997 – December 31, 1997
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 1997 – October 31, 1997
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 1995 – February 28, 1995
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 1994 – July 31, 1994
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 1992 – January 31, 1992
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
—Barium
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Arsenic
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
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 |
|---|---|---|---|---|
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Diquat | — | Resolved |
| December 1, 1997 – December 31, 1997 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| October 1, 1997 – October 31, 1997 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| February 1, 1995 – February 28, 1995 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| July 1, 1994 – July 31, 1994 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| January 1, 1992 – January 31, 1992 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | 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 | Barium | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Arsenic | — | 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 |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- January 1, 2008State Compliance achieved12 linked violations
- December 31, 1997State Public Notification received3 linked violations
- October 31, 1997State Public Notification received1 linked violation
- August 31, 1996State Violation/Reminder Notice2 linked violations
- February 28, 1995State Violation/Reminder Notice3 linked violations
- July 31, 1994State Violation/Reminder Notice1 linked violation
- June 30, 1992State Violation/Reminder Notice1 linked violation
- May 31, 1992State Violation/Reminder Notice1 linked violation
- April 30, 1992State Violation/Reminder Notice1 linked violation
Common questions
Is TWANOH HEIGHTS COMMUNITY CLUB required to publish a Consumer Confidence Report?
- Yes. TWANOH HEIGHTS COMMUNITY CLUB 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 TWANOH HEIGHTS COMMUNITY CLUB’s next Consumer Confidence Report due?
- TWANOH HEIGHTS COMMUNITY CLUB’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does TWANOH HEIGHTS COMMUNITY CLUB have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for TWANOH HEIGHTS COMMUNITY CLUB.
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
TWANOH HEIGHTS COMMUNITY CLUB
Phone not on record
UNION, WA 98592-9649