Is METHOW WATER SYSTEM INC required to publish a Consumer Confidence Report?

Yes. METHOW WATER SYSTEM INC 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 METHOW WATER SYSTEM INC’s next Consumer Confidence Report due?

METHOW WATER SYSTEM INC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

METHOW, WA · Okanogan County

METHOW WATER SYSTEM INC Water System

Consumer Confidence Report status

METHOW WATER SYSTEM INC 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 METHOW WATER SYSTEM INC.

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): WA5354370
System type: Community Water System
Population served: 45
Service connections: 27
Ownership: privately owned
Water source: groundwater (wells)

METHOW WATER SYSTEM INC is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 45 people from groundwater.

As of August 1, 2026, its federal record holds 41 entries between 1979 and 2022, all of which EPA lists as closed. Nothing has been added since 2022.

Of the 41, 35 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 volatile organic chemicals, the Total Coliform Rules, and inorganic chemicals.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2022 – November 30, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2022 – October 31, 2022
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Vinyl chloride
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Benzene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Toluene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Styrene
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2004 – December 31, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1999 – August 31, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1998 – October 31, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1998 – July 31, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1997 – July 31, 1997
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 1996 – November 30, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1996 – April 30, 1996
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 1995 – December 31, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1995 – July 31, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1993 – January 31, 1993
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1992 – April 30, 1992
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
—
Mercury
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Fluoride
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Chromium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Cadmium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Barium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Arsenic
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
November 1, 2022 – November 30, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2022 – October 31, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	Vinyl chloride	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	Trichloroethylene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	Tetrachloroethylene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	Benzene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	Toluene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	Styrene	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
August 1, 1999 – August 31, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1998 – October 31, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 1998 – July 31, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 1997 – July 31, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
November 1, 1996 – November 30, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1996 – April 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 1, 1995 – December 31, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	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
April 1, 1992 – April 30, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	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	Mercury	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Fluoride	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Chromium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Cadmium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Barium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Arsenic	—	Archived

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

Enforcement actions

December 12, 2022State Compliance achieved2 linked violations
July 6, 2006State Compliance achieved52 linked violations
December 31, 1997State Public Notification received11 linked violations
November 30, 1996State Violation/Reminder Notice4 linked violations
August 31, 1993State Violation/Reminder Notice4 linked violations
January 31, 1993State Violation/Reminder Notice2 linked violations
August 31, 1992State Violation/Reminder Notice1 linked violation
May 31, 1992State Violation/Reminder Notice1 linked violation
April 30, 1992State Violation/Reminder Notice3 linked violations
November 30, 1991State Violation/Reminder Notice1 linked violation

Common questions

Is METHOW WATER SYSTEM INC required to publish a Consumer Confidence Report?: Yes. METHOW WATER SYSTEM INC 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 METHOW WATER SYSTEM INC’s next Consumer Confidence Report due?: METHOW WATER SYSTEM INC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does METHOW WATER SYSTEM INC have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for METHOW WATER SYSTEM INC.
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

METHOW WATER SYSTEM INC

Phone not on record

METHOW, WA 98834