Is DEL NORTE MUTUAL WATER CO. required to publish a Consumer Confidence Report?

Yes. DEL NORTE MUTUAL WATER CO. 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 DEL NORTE MUTUAL WATER CO.’s next Consumer Confidence Report due?

DEL NORTE MUTUAL WATER CO.’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.

SOMIS, CA · Ventura County

DEL NORTE MUTUAL WATER CO. Water System

Consumer Confidence Report status

DEL NORTE MUTUAL WATER CO. 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 DEL NORTE MUTUAL WATER CO..

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 California’s official records. Always confirm current status with California before making decisions based on this information.

System facts

System ID (PWSID): CA5602104
System type: Community Water System
Population served: 215
Service connections: 85
Ownership: privately owned
Water source: groundwater (wells)

DEL NORTE MUTUAL WATER CO. is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 215 people from groundwater.

As of August 1, 2026, its federal record holds 7 entries between 1980 and 2024, all of which EPA lists as closed.

Of the 7, 4 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 the Total Coliform Rules, the Consumer Confidence Rule, and the Radionuclides and Revised Rad Rule.

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – November 19, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2024 – January 31, 2024
Archived
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – May 8, 2024
Resolved
Maximum Contaminant Level Violation, E. coli (RTCR)
Health-based
Revised Total Coliform Rule
May 1, 2022 – May 31, 2022
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2007 – April 30, 2007
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 30, 1980 – October 29, 1981
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, 2024 – November 19, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2024 – January 31, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Archived
July 1, 2022 – May 8, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2022 – May 31, 2022	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
April 1, 2007 – April 30, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1981 – September 30, 1982	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 30, 1980 – October 29, 1981	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

April 22, 2024State Administrative/Compliance Order without penalty issued5 linked violations
July 21, 2023State Compliance achieved5 linked violations
September 1, 2022State Compliance achieved5 linked violations

Common questions

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

VANONI, DAVID

Phone not on record

SOMIS, CA 93066