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
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
January 1, 2026 – January 31, 2026
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2024 – February 26, 2025
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
September 1, 2023 – September 30, 2023
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
August 1, 2023 – August 31, 2023
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
March 1, 2023 – March 31, 2023
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
July 1, 2022 – July 31, 2022
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
March 1, 2022 – March 31, 2022
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2021 – October 4, 2021
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2015 – September 28, 2015
ResolvedMonitoring, Regular
—Nitrate
July 1, 2015 – September 30, 2015
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2014 – October 20, 2014
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2013 – September 3, 2013
ResolvedMonitoring, Regular
—Arsenic
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Barium
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Cadmium
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Chromium
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Fluoride
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Mercury
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Nickel
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Selenium
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2005 – December 31, 2007
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 1994 – September 30, 1994
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 1994 – August 31, 1994
ArchivedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
April 1, 1992 – April 30, 1992
ArchivedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
December 1, 1991 – December 31, 1991
ArchivedMonitoring, 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)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| February 1, 2026 – February 28, 2026 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2026 – January 31, 2026 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| July 1, 2024 – February 26, 2025 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| September 1, 2023 – September 30, 2023 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| August 1, 2023 – August 31, 2023 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| March 1, 2023 – March 31, 2023 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| July 1, 2022 – July 31, 2022 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| March 1, 2022 – March 31, 2022 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| July 1, 2021 – October 4, 2021 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2015 – September 28, 2015 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2015 – September 30, 2015 | Monitoring, Regular | Nitrate | — | Resolved |
| July 1, 2014 – October 20, 2014 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2013 – September 3, 2013 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Thallium, Total | — | Resolved |
| September 1, 1994 – September 30, 1994 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| August 1, 1994 – August 31, 1994 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| April 1, 1992 – April 30, 1992 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Archived |
| December 1, 1991 – December 31, 1991 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Archived |
| October 1, 1991 – October 31, 1991 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- March 31, 2026State Compliance achieved2 linked violations
- February 26, 2025State Compliance achieved1 linked violation
- October 24, 2023State Compliance achieved2 linked violations
- April 26, 2023State Compliance achieved1 linked violation
- August 25, 2022State Compliance achieved1 linked violation
- April 26, 2022State Compliance achieved1 linked violation
- October 4, 2021State Compliance achieved1 linked violation
- April 9, 2019State Compliance achieved1 linked violation
- November 1, 2017State Compliance achieved1 linked violation
- March 29, 2016State Compliance achieved1 linked violation
- September 28, 2015State Compliance achieved1 linked violation
- October 20, 2014State Compliance achieved1 linked violation
- September 3, 2013State Compliance achieved1 linked violation
- May 31, 1992State Violation/Reminder Notice1 linked violation
- April 30, 1992State Violation/Reminder Notice1 linked violation
- February 29, 1992State Violation/Reminder Notice1 linked violation
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