Is BUTTERFIELD RANCH required to publish a Consumer Confidence Report?

Yes. BUTTERFIELD RANCH 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 BUTTERFIELD RANCH’s next Consumer Confidence Report due?

BUTTERFIELD RANCH’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.

SAN DIEGO, CA · San Diego County

BUTTERFIELD RANCH Water System

Consumer Confidence Report status

BUTTERFIELD RANCH 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 BUTTERFIELD RANCH, alongside 1 other open item.

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): CA3701184
System type: Community Water System
Population served: 353
Service connections: 308
Ownership: privately owned
Water source: groundwater (wells)

BUTTERFIELD RANCH is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 353 people from groundwater.

As of August 1, 2026, its federal record holds 19 entries between 1980 and 2024, of which 1 health-based item remains open, alongside 1 other open entry.

Of the 19, 12 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 Lead and Copper Rule, and inorganic chemicals.

Violation history

LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Unaddressed
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2023 – February 28, 2023
Resolved
Maximum Contaminant Level Violation, E. coli (RTCR)
Health-based
Revised Total Coliform Rule
July 1, 2022 – July 31, 2022
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
June 1, 2022 – September 26, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2009 – October 1, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2008 – February 29, 2008
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
December 1, 2007 – July 7, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2007 – January 31, 2007
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – December 20, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2005 – April 30, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2005 – March 31, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2005 – February 28, 2005
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
June 24, 1988 – June 23, 1989
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
October 11, 1984 – October 10, 1985
Archived
Notification, Public
—
No contaminant on record
September 1, 1984 – September 30, 1984
Archived
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
Monitoring, Check/Repeat/Confirmation
—
Fluoride
June 1, 1980 – May 31, 1982
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
October 17, 2024	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
February 1, 2023 – February 28, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2022 – July 31, 2022	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
June 1, 2022 – September 26, 2022	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
July 1, 2009 – October 1, 2009	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
February 1, 2008 – February 29, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2007 – July 7, 2014	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2007 – January 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2005 – December 20, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2005 – April 30, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 2005 – March 31, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2005 – February 28, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 24, 1988 – June 23, 1989	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 11, 1984 – October 10, 1985	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
September 1, 1984 – September 30, 1984	Notification, Public	—	—	Archived
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
June 1, 1980 – May 31, 1982	Monitoring, Check/Repeat/Confirmation	Fluoride	—	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

January 16, 2024State Compliance achieved5 linked violations
December 27, 2023State Administrative/Compliance Order without penalty issued1 linked violation
June 21, 2023State Administrative/Compliance Order without penalty issued4 linked violations
September 26, 2022State Compliance achieved7 linked violations
October 27, 2011State Compliance achieved4 linked violations
September 20, 2011State Administrative/Compliance Order without penalty issued1 linked violation
August 11, 2009State Administrative/Compliance Order without penalty issued4 linked violations
December 3, 2008State Compliance achieved1 linked violation
March 18, 2008State Administrative/Compliance Order without penalty issued1 linked violation
December 11, 2007State Administrative/Compliance Order without penalty issued1 linked violation
February 28, 2007State Compliance achieved4 linked violations
December 20, 2005State Compliance achieved1 linked violation
August 15, 2005State Administrative/Compliance Order without penalty issued2 linked violations
July 27, 2005State Administrative/Compliance Order without penalty issued1 linked violation
May 16, 2005State Administrative/Compliance Order without penalty issued1 linked violation
March 28, 2005State Compliance achieved2 linked violations
March 18, 2005State Administrative/Compliance Order without penalty issued1 linked violation
January 31, 2005State Compliance achieved1 linked violation

Common questions

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

PHILBIN, MATT

619-694-9253

SAN DIEGO, CA 92109