Public Water Partners

Walla Walla, WA · Walla Walla County

PROSPECT HEIGHTS COMM WATER ASSN Water System

Consumer Confidence Report status

PROSPECT HEIGHTS COMM WATER ASSN 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 PROSPECT HEIGHTS COMM WATER ASSN.

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)
WA5369700
System type
Community Water System
Population served
40
Service connections
17
Ownership
privately owned
Water source
groundwater (wells)

PROSPECT HEIGHTS COMM WATER ASSN is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 40 people from groundwater.

As of August 1, 2026, its federal record holds 143 entries between 1979 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.

Of the 143, 137 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 volatile organic chemicals, synthetic organic chemicals, and inorganic chemicals.

Violation history

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Endrin

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Picloram

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Toluene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Benzene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Styrene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    LASSO

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Simazine

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2023 – December 31, 2025

    Archived

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    January 1, 2021 – September 17, 2024

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Benzene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Toluene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Styrene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2020 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2020 – December 31, 2022

    Archived

  • Maximum Contaminant Level Violation, E. coli (RTCR)

    Health-based

    Revised Total Coliform Rule

    December 1, 2017 – December 31, 2017

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2016 – December 27, 2016

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2015 – December 21, 2015

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Simazine

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    LASSO

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Picloram

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2014 – December 31, 2022

    Archived

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 2014 – December 31, 2022

    Archived

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2013 – October 9, 2013

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Arsenic

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Nitrite

    January 1, 2011 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2008 – December 31, 2010

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    May 1, 2000 – May 31, 2000

    Archived

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1993 – September 30, 1993

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    October 1, 1979 – October 31, 1979

    Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is PROSPECT HEIGHTS COMM WATER ASSN required to publish a Consumer Confidence Report?

Yes. PROSPECT HEIGHTS COMM WATER ASSN 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 PROSPECT HEIGHTS COMM WATER ASSN’s next Consumer Confidence Report due?

PROSPECT HEIGHTS COMM WATER ASSN’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does PROSPECT HEIGHTS COMM WATER ASSN have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for PROSPECT HEIGHTS COMM WATER ASSN.

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

PROSPECT HEIGHTS COMM WATER ASSN

Phone not on record

Walla Walla, WA 99362