Public water system record

California-American Larkfield (Puc)

Serves Larkfield-Wikiup and Fulton, Sonoma County, CA · 7,913 people served

Federal records show no health-based violations and no monitoring or reporting issues for California-American Larkfield (Puc) in the last ten years.

  • CA4910023
  • SACRAMENTO
  • CA
  • 7,913 served

System profile

Source water Groundwater
ZIP 95838
EPA system ID CA4910023

Verify this system on EPA ECHO →

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

Key facts

  • California-American Larkfield (Puc) draws water from 5 wells.
  • Record on file since 1988, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 2,265 service lines.

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Health-based violations

Since October 2016

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

None since October 2016, and no monitoring or reporting violations either.

Full record since 1988

EPA's records for California-American Larkfield (Puc) go back to 1988. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
1980s 0 1
1990s 1 0

Most recent health-based violation before October 19, 2016: Total Coliform, began July 1998, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Jul 1, 1998 Resolved

Where the water comes from

California-American Larkfield (Puc) draws water from 5 wells. It also buys water from Sonoma County Water Agency.

Buys water from

Annual water quality report

California-American Larkfield (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.