Public Water Partners

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

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    December 1, 1997 – December 31, 1997

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 1997 – October 31, 1997

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 1995 – February 28, 1995

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 1994 – July 31, 1994

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 1992 – January 31, 1992

    Archived
  • Monitoring, Regular

    Mercury

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Nitrate

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Selenium

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Barium

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Arsenic

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Cadmium

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Chromium

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, 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)

Enforcement actions

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