Napavine, WA · Thurston County
PATTERSON LAKE WATER 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)
- WA5366573
- System type
- Community Water System
- Population served
- 79
- Service connections
- 17
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—Diquat
October 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Diquat
July 1, 2007 – September 30, 2007
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
November 1, 1998 – November 30, 1998
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 1996 – December 31, 1996
ArchivedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
October 1, 1996 – October 31, 1996
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 1995 – July 31, 1995
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 1993 – January 31, 1993
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
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 |
|---|---|---|---|---|
| October 1, 2007 – December 31, 2007 | Monitoring, Regular | Diquat | — | Resolved |
| July 1, 2007 – September 30, 2007 | Monitoring, Regular | Diquat | — | Resolved |
| November 1, 1998 – November 30, 1998 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| December 1, 1996 – December 31, 1996 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| October 1, 1996 – October 31, 1996 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Archived |
| July 1, 1995 – July 31, 1995 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| January 1, 1993 – January 31, 1993 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- January 1, 2008State Compliance achieved59 linked violations
- January 31, 1993State Violation/Reminder Notice1 linked violation
Contact
PATTERSON LAKE WATER
Phone not on record
Napavine, WA 98565