Public Water Partners

Union Gap, WA · Yakima County

UNION GAP WATER Water System

Consumer Confidence Report status

UNION GAP WATER 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 UNION GAP WATER.

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)
WA5390250
System type
Community Water System
Population served
6,433
Service connections
1,981
Ownership
local government
Water source
groundwater (wells)

UNION GAP WATER is one of 112 community water systems in Washington in the 3,301 to 10,000 people size category, serving 6,433 people from groundwater.

As of August 1, 2026, its federal record holds 21 entries between 1979 and 2008, all of which EPA lists as closed. Nothing has been added since 2008.

Of the 21, 16 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, synthetic organic chemicals, and the Total Coliform Rules.

Violation history

  • Monitoring, Regular

    Aldicarb

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Diquat

    October 1, 2006 – December 31, 2006

    Resolved
  • Monitoring, Regular

    Diquat

    July 1, 2006 – September 30, 2006

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    February 1, 2005 – February 28, 2005

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    November 1, 2004 – November 30, 2004

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 1999 – July 31, 1999

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1996 – September 30, 1996

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    June 1, 1996 – June 30, 1996

    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
  • 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

    Arsenic

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Barium

    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 UNION GAP WATER required to publish a Consumer Confidence Report?

Yes. UNION GAP WATER 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 UNION GAP WATER’s next Consumer Confidence Report due?

UNION GAP WATER’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does UNION GAP WATER have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for UNION GAP WATER.

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

UNION GAP WATER

Phone not on record

Union Gap, WA 98903