Public Water Partners

Mesa, WA · Franklin County

MESA WATER DEPARTMENT Water System

Consumer Confidence Report status

MESA WATER DEPARTMENT 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 MESA WATER DEPARTMENT.

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)
WA5354100
System type
Community Water System
Population served
495
Service connections
163
Ownership
local government
Water source
groundwater (wells)

MESA WATER DEPARTMENT is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 495 people from groundwater.

As of August 1, 2026, its federal record holds 41 entries between 1979 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

Of the 41, 36 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 Total Coliform Rules.

Violation history

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    January 1, 2019 – December 31, 2021

    Resolved

  • Monitoring and Reporting (DBP)

    —

    TTHM

    January 1, 2019 – December 31, 2021

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    January 1, 2016 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring and Reporting (DBP)

    —

    TTHM

    January 1, 2014 – December 31, 2014

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Asbestos

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2008 – December 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2007 – December 31, 2007

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    December 1, 2004 – December 31, 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)

    February 1, 1993 – February 28, 1993

    Archived

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    March 1, 1992 – March 31, 1992

    Archived

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    January 1, 1992 – January 31, 1992

    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

  • Monitoring, Regular

    —

    Cadmium

    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 MESA WATER DEPARTMENT required to publish a Consumer Confidence Report?

Yes. MESA WATER DEPARTMENT 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 MESA WATER DEPARTMENT’s next Consumer Confidence Report due?

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

Does MESA WATER DEPARTMENT have any open drinking water violations on record?

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

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

MESA WATER DEPARTMENT

Phone not on record

Mesa, WA 99343-9670