Public Water Partners

Benton City, WA · Benton County

MOUNT ADAMS VISTA WATER SYSTEM Water System

Consumer Confidence Report status

MOUNT ADAMS VISTA WATER SYSTEM 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 MOUNT ADAMS VISTA WATER SYSTEM.

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)
WA5341140
System type
Community Water System
Population served
34
Service connections
13
Ownership
privately owned
Water source
groundwater (wells)

MOUNT ADAMS VISTA WATER SYSTEM is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 34 people from groundwater.

As of August 1, 2026, its federal record holds 24 entries between 2003 and 2010, all of which EPA lists as closed. Nothing has been added since 2010.

Of the 24, 23 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 synthetic organic chemicals, inorganic chemicals, and the Consumer Confidence Rule.

Violation history

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2010 – October 15, 2010

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2008 – December 31, 2010

    Archived

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2004 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2003 – December 31, 2003

    Resolved

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 MOUNT ADAMS VISTA WATER SYSTEM required to publish a Consumer Confidence Report?

Yes. MOUNT ADAMS VISTA WATER SYSTEM 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 MOUNT ADAMS VISTA WATER SYSTEM’s next Consumer Confidence Report due?

MOUNT ADAMS VISTA WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does MOUNT ADAMS VISTA WATER SYSTEM have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for MOUNT ADAMS VISTA WATER SYSTEM.

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

MOUNT ADAMS VISTA WATER SYSTEM

Phone not on record

Benton City, WA 99320-7546