Tonasket, WA · Okanogan County

TONASKET WATER SYSTEM 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): WA5388700
System type: Community Water System
Population served: 2,392
Service connections: 602
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2020 – October 31, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2019 – October 31, 2019
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – September 11, 2018
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2014 – May 31, 2014
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 1998 – November 30, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1997 – October 31, 1997
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 1996 – November 30, 1996
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 1995 – November 30, 1995
Archived
Monitoring, Regular
—
Chromium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Fluoride
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Mercury
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
—
Arsenic
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
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

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, 2020 – October 31, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2019 – October 31, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2018 – September 11, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2014 – May 31, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 1998 – November 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1997 – October 31, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
November 1, 1996 – November 30, 1996	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 1, 1979 – October 31, 1979	Monitoring, Regular	Chromium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Fluoride	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Mercury	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Nitrate	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Selenium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Arsenic	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Barium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Cadmium	—	Archived

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

Enforcement actions

November 2, 2020State Compliance achieved1 linked violation
November 4, 2019State Compliance achieved1 linked violation
September 11, 2018State Compliance achieved1 linked violation
June 30, 2014State Compliance achieved1 linked violation
November 30, 1996State Violation/Reminder Notice24 linked violations

Contact

TONASKET WATER SYSTEM

Phone not on record

Tonasket, WA 98855