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Public water system record

Coast Springs - Cal. Water Service (Puc)

Serves Dillon Beach, Marin County, CA · 388 people served

Federal records show no health-based violations and no monitoring or reporting issues for Coast Springs - Cal. Water Service (Puc) in the last ten years.

  • CA2110007
  • SAN JOSE
  • CA
  • 388 served

System profile

Source water Surface water
ZIP 95112
EPA system ID CA2110007

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

  • Coast Springs - Cal. Water Service (Puc) draws water from 9 wells and 1 surface water intake.
  • Most recent formal enforcement: compliance order (no penalty) by California, December 2007.
  • Record on file since 1983, with 5 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 253 unknown out of 253 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 1983

EPA's records for Coast Springs - Cal. Water Service (Puc) go back to 1983. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 6 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 1
1990s 5 3
2000s 0 2

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began March 1999, Resolved.

Show all 5 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
 Mar 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Nov 1, 1997 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Feb 1, 1996 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jan 1, 1995 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Aug 1, 1994 Resolved

Enforcement actions

California regulators took 4 formal enforcement actions against Coast Springs - Cal. Water Service (Puc) between 1995 and 2007. The most recent was a compliance order (no penalty) in December 2007.

Date By Action Violations covered
Dec 17, 2007 California Compliance order (no penalty) 1 violation: Nitrate
Dec 14, 2007 California Compliance order (no penalty) 1 violation: Benzene
Mar 31, 1999 California Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Mar 8, 1995 California Administrative penalty 1 violation (1 health-based): Surface Water Treatment Rule

Where the water comes from

Coast Springs - Cal. Water Service (Puc) draws water from 9 wells and 1 surface water intake.

Annual water quality report

Coast Springs - Cal. Water Service (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.

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 Coast Springs - Cal. Water Service (Puc) 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.

Certified drinking water labs by state EPA guidance for private wells