Public Water Partners

Spokane, WA · Spokane County

PATTERSON ADDITION Water System

Consumer Confidence Report status

PATTERSON ADDITION 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 PATTERSON ADDITION.

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)
WA5366565
System type
Community Water System
Population served
22
Service connections
20
Ownership
privately owned
Water source
groundwater (wells)

PATTERSON ADDITION is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 22 people from groundwater.

As of August 1, 2026, its federal record holds 30 entries between 1991 and 2026, all of which EPA lists as closed.

Of the 30, 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 inorganic chemicals, the Total Coliform Rules, and the Consumer Confidence Rule.

Violation history

  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    February 1, 2026 – February 28, 2026

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    January 1, 2026 – January 31, 2026

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2024 – February 26, 2025

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    September 1, 2023 – September 30, 2023

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2023 – August 31, 2023

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    March 1, 2023 – March 31, 2023

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    July 1, 2022 – July 31, 2022

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    March 1, 2022 – March 31, 2022

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2021 – October 4, 2021

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2015 – September 28, 2015

    Resolved
  • Monitoring, Regular

    Nitrate

    July 1, 2015 – September 30, 2015

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2014 – October 20, 2014

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2013 – September 3, 2013

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Chromium

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    CYANIDE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Nickel

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2005 – December 31, 2007

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1994 – September 30, 1994

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 1994 – August 31, 1994

    Archived
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    April 1, 1992 – April 30, 1992

    Archived
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    December 1, 1991 – December 31, 1991

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 1991 – October 31, 1991

    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 PATTERSON ADDITION required to publish a Consumer Confidence Report?

Yes. PATTERSON ADDITION 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 PATTERSON ADDITION’s next Consumer Confidence Report due?

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

Does PATTERSON ADDITION have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for PATTERSON ADDITION.

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

PATTERSON ADDITION

Phone not on record

Spokane, WA 99204