Is SAN JUSTO MUTUAL WATER COMPANY required to publish a Consumer Confidence Report?

Yes. SAN JUSTO MUTUAL WATER COMPANY 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 SAN JUSTO MUTUAL WATER COMPANY’s next Consumer Confidence Report due?

SAN JUSTO MUTUAL WATER COMPANY’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.

HOLLISTER, CA · San Benito County

SAN JUSTO MUTUAL WATER COMPANY Water System

Consumer Confidence Report status

SAN JUSTO MUTUAL WATER COMPANY 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 1 open health-based violation for SAN JUSTO MUTUAL WATER COMPANY.

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): CA3500550
System type: Community Water System
Population served: 160
Service connections: 61
Ownership: privately owned
Water source: groundwater (wells)

SAN JUSTO MUTUAL WATER COMPANY is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 160 people from groundwater.

As of August 1, 2026, its federal record holds 10 entries between 1980 and 2024, of which 1 health-based item remains open.

Of the 10, 7 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 Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Radionuclides and Revised Rad Rule.

Violation history

LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Unaddressed
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2020 – December 31, 2022
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2007 – September 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2007 – June 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2005 – December 31, 2005
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 1998 – October 31, 1998
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 1998 – September 30, 1998
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 1995 – March 31, 1995
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

Unaddressed no corrective action on record yetResolved 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 17, 2024	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Unaddressed
January 1, 2020 – December 31, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2005 – December 31, 2005	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 1998 – October 31, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 1998 – September 30, 1998	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 1995 – March 31, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	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

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

September 10, 2023State Compliance achieved2 linked violations
November 14, 2022State Administrative/Compliance Order without penalty issued2 linked violations
January 7, 2022State Administrative/Compliance Order without penalty issued1 linked violation
December 29, 2021State Compliance achieved1 linked violation
December 6, 2007State Compliance achieved4 linked violations
October 30, 2007State Administrative/Compliance Order without penalty issued4 linked violations
August 28, 2007State Compliance achieved3 linked violations
August 26, 2005State Administrative/Compliance Order without penalty issued1 linked violation
April 29, 2005State Administrative/Compliance Order without penalty issued2 linked violations
April 29, 2005State Compliance achieved2 linked violations
June 21, 1999State Public Notification requested9 linked violations
April 30, 1999State Compliance achieved4 linked violations
April 12, 1999State Public Notification requested2 linked violations
March 15, 1999State Violation/Reminder Notice3 linked violations
January 31, 1999State Compliance achieved1 linked violation
December 16, 1998State Violation/Reminder Notice4 linked violations
November 30, 1998State Compliance achieved3 linked violations
July 8, 1994State Compliance achieved2 linked violations
April 14, 1993State Public Notification requested9 linked violations

Common questions

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

SCHWEIGER, PAUL

831-245-8044

HOLLISTER, CA 95023