Public water system record

Sea Ranch Water Company,The (Puc)

Serves Sea Ranch, Sonoma County, CA · 1,160 people served

Federal records show 1 health-based violation and 3 monitoring/reporting issues for Sea Ranch Water Company,The (Puc) in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

CA4910007
SEA RANCH
CA
1,160 served

System profile

Source water Surface water

ZIP 95497

EPA system ID CA4910007

Verify this system on EPA ECHO →

Health-based violations, last 10 years: 1
Resolved: 0
Unresolved: 1
Any acute record: No
Monitoring issues, last 10 years: 3

Key facts

Sea Ranch Water Company,The (Puc) draws water from 2 wells and 1 surface water intake.
Most recent formal enforcement: compliance order (no penalty) by California, May 2010.
Record on file since 1993, with 3 health-based violations before October 19, 2016.

Check whether Sea Ranch Water Company,The (Puc) serves your address

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

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, 2024	Active
Revised Total Coliform Rule Monitoring violation	Sep 1, 2023	Resolved

Full record since 1993

EPA's records for Sea Ranch Water Company,The (Puc) go back to 1993. Before October 19, 2016 they list 3 health-based violations (3 resolved) and no monitoring or reporting violations.

Violations that began in	Health-based	Monitoring and reporting
1990s	2	0
2000s	1	0
2020s	1	3

Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began June 2007, Resolved.

Show all 3 health-based violations before October 19, 2016

Contaminant	Start date	Status
Interim Enhanced Surface Water Treatment Rule (acute) Treatment technique failure	Jun 1, 2007	Resolved
Surface Water Treatment Rule Treatment technique failure	Jun 1, 1999	Resolved
Surface Water Treatment Rule Treatment technique failure	Jun 1, 1993	Resolved

Enforcement actions

California regulators took 3 formal enforcement actions against Sea Ranch Water Company,The (Puc) between 1993 and 2010. The most recent was a compliance order (no penalty) in May 2010.

Date	By	Action	Violations covered
May 13, 2010	California	Compliance order (no penalty)	1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Jul 13, 1999	California	Compliance order (no penalty)	1 violation (1 health-based): Surface Water Treatment Rule
Jul 20, 1993	California	Compliance order (no penalty)	1 violation (1 health-based): Surface Water Treatment Rule

What the violations mean

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

Sea Ranch Water Company,The (Puc) draws water from 2 wells and 1 surface water intake.

Annual water quality report

Sea Ranch Water Company,The (Puc) 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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.

Certified drinking water labs by state EPA guidance for private wells