Lacey, WA · Thurston County

PATTISON 500 Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)

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)
May 1, 1998 – May 31, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1998 – April 30, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 1995 – November 30, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 19, 1994 – November 18, 1994
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
February 1, 1992 – February 29, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1991 – October 31, 1991
Archived
Monitoring, Regular
—
Mercury
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Selenium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Nitrate
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
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

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
July 1, 2012 – October 22, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Diquat	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Diquat	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Diquat	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Fluoride	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Mercury	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Nickel	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Selenium	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Antimony, Total	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Beryllium, Total	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Thallium, Total	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Arsenic	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Barium	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Cadmium	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Chromium	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	CYANIDE	—	Archived
May 1, 1998 – May 31, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1998 – April 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
November 1, 1995 – November 30, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 19, 1994 – November 18, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 1992 – February 29, 1992	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1991 – October 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Mercury	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Selenium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Nitrate	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Arsenic	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Barium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Cadmium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Chromium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Fluoride	—	Archived

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

Enforcement actions

October 22, 2012State Compliance achieved1 linked violation
October 31, 2011State Compliance achieved1 linked violation
January 1, 2008State Compliance achieved5 linked violations
January 1, 2008State Compliance achieved5 linked violations
January 1, 2008State Compliance achieved3 linked violations
January 1, 2008State Compliance achieved4 linked violations
April 30, 1998State Violation/Reminder Notice11 linked violations
April 30, 1998State Public Notification received3 linked violations
August 23, 1994Federal issued Formal Notice of Violation4 linked violations
March 31, 1992State Violation/Reminder Notice1 linked violation
February 29, 1992State Violation/Reminder Notice1 linked violation
October 31, 1991State Public Notification requested3 linked violations
October 31, 1991State Violation/Reminder Notice1 linked violation
October 31, 1991State Public Notification received3 linked violations

Contact

PATTISON 500

Phone not on record

Lacey, WA 98503