Is MCNEIL ISLAND WATER required to publish a Consumer Confidence Report?

Yes. MCNEIL ISLAND WATER 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 MCNEIL ISLAND WATER’s next Consumer Confidence Report due?

MCNEIL ISLAND WATER’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.

Tumwater, WA · Pierce County

MCNEIL ISLAND WATER Water System

Consumer Confidence Report status

MCNEIL ISLAND WATER 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 5 open health-based violations for MCNEIL ISLAND WATER.

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): WA5352900
System type: Community Water System
Population served: 692
Service connections: 271
Ownership: state government
Water source: groundwater (wells)

MCNEIL ISLAND WATER is one of 428 community water systems in Washington in the 501 to 3,300 people size category, serving 692 people from groundwater.

As of August 1, 2026, its federal record holds 49 entries between 1979 and 2025, of which 5 health-based items remain open.

Of the 49, 34 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 Surface Water Treatment Rules, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2025 – December 31, 2025
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 2022 – December 28, 2022
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2022 – December 28, 2022
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2022 – December 28, 2022
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 2022 – December 28, 2022
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2022 – December 28, 2022
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 2021 – April 21, 2021
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 2021
Addressed
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 2020
Addressed
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 2020
Addressed
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2020
Addressed
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2020
Addressed
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 2020 – October 5, 2020
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2020 – October 5, 2020
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 2020 – October 5, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2019 – March 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2019 – March 31, 2019
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2018 – December 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2017 – September 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2017 – September 30, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – April 4, 2013
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Benzene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Toluene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Styrene
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Carbofuran
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
OXAMYL
January 1, 2008 – December 31, 2010
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
May 1, 2006 – May 31, 2006
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
January 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	Archived
November 1, 2022 – December 28, 2022	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
October 1, 2022 – December 28, 2022	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 2022 – December 28, 2022	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
August 1, 2022 – December 28, 2022	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 2022 – December 28, 2022	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 2021 – April 21, 2021	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 2021	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Addressed
December 1, 2020	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Addressed
November 1, 2020	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Addressed
October 1, 2020	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Addressed
September 1, 2020	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Addressed
August 1, 2020 – October 5, 2020	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 2020 – October 5, 2020	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
June 1, 2020 – October 5, 2020	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 2019 – March 31, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2012 – April 4, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Benzene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Toluene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	Styrene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Aldicarb	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Carbofuran	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Aldicarb sulfone	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Aldicarb sulfoxide	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	OXAMYL	—	Archived
May 1, 2006 – May 31, 2006	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation

Enforcement actions

December 28, 2022State Compliance achieved5 linked violations
April 21, 2021State Compliance achieved1 linked violation
April 21, 2021State Violation/Reminder Notice1 linked violation
December 8, 2020State Administrative/Compliance Order without penalty issued17 linked violations
October 5, 2020State Compliance achieved3 linked violations
October 5, 2020State Violation/Reminder Notice12 linked violations
June 12, 2019State Compliance achieved1 linked violation
June 12, 2019State Compliance achieved1 linked violation
April 3, 2019State Compliance achieved1 linked violation
October 27, 2017State Compliance achieved1 linked violation
October 27, 2017State Compliance achieved1 linked violation
April 4, 2013State Compliance achieved1 linked violation
June 29, 2011State Compliance achieved20 linked violations
July 31, 1992State Violation/Reminder Notice2 linked violations

Common questions

Is MCNEIL ISLAND WATER required to publish a Consumer Confidence Report?: Yes. MCNEIL ISLAND WATER 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 MCNEIL ISLAND WATER’s next Consumer Confidence Report due?: MCNEIL ISLAND WATER’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MCNEIL ISLAND WATER have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 5 open health-based violations for MCNEIL ISLAND WATER.
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

MCNEIL ISLAND WATER

Phone not on record

Tumwater, WA 98501