Public Water Partners

Lacey, WA · Thurston County

PATTISON 500 Water System

Consumer Confidence Report status

PATTISON 500 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 PATTISON 500.

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)
WA5366578
System type
Community Water System
Population served
4,643
Service connections
1,865
Ownership
local government
Water source
groundwater (wells)

PATTISON 500 is one of 112 community water systems in Washington in the 3,301 to 10,000 people size category, serving 4,643 people from groundwater.

As of August 1, 2026, its federal record holds 29 entries between 1979 and 2012, all of which EPA lists as closed. Nothing has been added since 2012.

Of the 29, 26 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, synthetic organic chemicals, and the Total Coliform Rules.

Violation history

  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2012 – October 22, 2012

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Mercury

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Nickel

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Selenium

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Antimony, Total

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Thallium, Total

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Arsenic

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Barium

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Cadmium

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    Chromium

    January 1, 2002 – December 31, 2004

    Archived
  • Monitoring, Regular

    CYANIDE

    January 1, 2002 – December 31, 2004

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    November 1, 1995 – November 30, 1995

    Archived
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    October 1, 1991 – October 31, 1991

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 1991 – October 31, 1991

    Archived
  • Monitoring, Regular

    Cadmium

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Chromium

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Fluoride

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    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

    Mercury

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Arsenic

    October 1, 1979 – October 31, 1979

    Archived
  • Monitoring, Regular

    Barium

    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 PATTISON 500 required to publish a Consumer Confidence Report?

Yes. PATTISON 500 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 PATTISON 500’s next Consumer Confidence Report due?

PATTISON 500’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does PATTISON 500 have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for PATTISON 500.

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

PATTISON 500

Phone not on record

Lacey, WA 98503