Public water system record

Butterfield Ranch

Serves an area of San Diego County, CA · 353 people served

Federal records show 4 health-based violations and 9 monitoring/reporting issues for Butterfield Ranch in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

  • CA3701184
  • SAN DIEGO
  • CA
  • 353 served

System profile

Source water Groundwater
ZIP 92109
EPA system ID CA3701184

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
3
Unresolved
1
Any acute record
Yes
Monitoring issues, last 10 years
9

Key facts

  • Butterfield Ranch draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
  • Most recent formal enforcement: compliance order (no penalty) by California, December 2023.
  • Record on file since 1980, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 314 service lines.

Check whether Butterfield Ranch serves your address

Address suggestions by Mapbox

Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
350 Oct 17, 2024 Active No
Revised Total Coliform Rule
Contaminant limit exceeded
110 Jul 1, 2022 Resolved Yes
Revised Total Coliform Rule
Contaminant limit exceeded
110 Jun 1, 2022 Resolved Yes
Revised Total Coliform Rule
Contaminant limit exceeded
110 May 1, 2022 Resolved Yes

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
LEAD AND COPPER RULE REVISIONS
RPT
Oct 17, 2024 Active
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Jan 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Aug 1, 2022 Resolved
E. coli
Monitoring and reporting
Jul 1, 2022 Resolved
E. coli
Monitoring and reporting
Jun 1, 2022 Resolved

Full record since 1980

EPA's records for Butterfield Ranch go back to 1980. Before October 19, 2016 they list 3 health-based violations (1 resolved, 2 archived by EPA without a recorded fix) and 15 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 2 4
2000s 1 9
2010 to October 18, 2016 0 2
2020s 4 9

Most recent health-based violation before October 19, 2016: Total Coliform, began July 2005, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Jul 1, 2005 Resolved
Nitrate (acute)
Contaminant limit exceeded
Jun 24, 1988 Archived
Fluoride
Contaminant limit exceeded
Oct 11, 1984 Archived

Enforcement actions

California regulators took 15 formal enforcement actions against Butterfield Ranch between 2005 and 2023. The most recent was a compliance order (no penalty) in December 2023.

Date By Action Violations covered
Dec 27, 2023 California Compliance order (no penalty) 1 violation: Lead and Copper Rule
Jun 21, 2023 California Compliance order (no penalty) 4 violations: Revised Total Coliform Rule
Oct 5, 2022 California Compliance order (no penalty) 6 violations (3 health-based): Revised Total Coliform Rule, E. coli
Sep 20, 2011 California Compliance order (no penalty) 1 violation: Consumer Confidence Rule
Aug 4, 2010 California Compliance order (no penalty) 1 violation: Consumer Confidence Rule
Aug 11, 2009 California Compliance order (no penalty) 1 violation: Consumer Confidence Rule
Mar 18, 2008 California Compliance order (no penalty) 1 violation: Total Coliform
Dec 11, 2007 California Compliance order (no penalty) 1 violation: Lead and Copper Rule
Feb 14, 2007 California Compliance order (no penalty) 1 violation: Total Coliform
Aug 15, 2005 California Compliance order (no penalty) 1 violation (1 health-based): Total Coliform
Jul 27, 2005 California Compliance order (no penalty) 1 violation: Consumer Confidence Rule
May 16, 2005 California Compliance order (no penalty) 1 violation: Total Coliform
Apr 18, 2005 California Compliance order (no penalty) 1 violation: Total Coliform
Mar 18, 2005 California Compliance order (no penalty) 1 violation: Total Coliform
Jan 13, 2005 California Compliance order (no penalty) 1 violation: Total Coliform

What the violations mean

Revised Total Coliform Rule

3 incidents

The system did not meet a requirement of the Revised Total Coliform Rule

Coliform and E. coli rules protect against bacteria in the distribution system

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Butterfield Ranch draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

Butterfield Ranch must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Butterfield Ranch for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.