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Public water system record

City of Vallejo

Serves Vallejo, Solano County, CA · 121,420 people served

Federal records show no health-based violations and no monitoring or reporting issues for City of Vallejo in the last ten years.

  • CA4810007
  • VALLEJO
  • CA
  • 121,420 served

System profile

Source water Surface water
ZIP 94589
EPA system ID CA4810007

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

  • City of Vallejo draws water from 7 surface water intakes.
  • Most recent formal enforcement: compliance order (no penalty) by California, January 1994.
  • Record on file since 1983, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 36,385 unknown out of 37,950 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 City of Vallejo go back to 1983. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 2 monitoring or reporting violations.

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

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began June 1993, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
 Jun 1, 1993 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Oct 1, 1991 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Jul 1, 1990 Resolved

Enforcement actions

California regulators took 4 formal enforcement actions against City of Vallejo between 1991 and 1994. The most recent was a compliance order (no penalty) in January 1994.

Date By Action Violations covered
Jan 6, 1994 California Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Jul 8, 1993 California Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Jan 30, 1992 California Administrative penalty 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Jun 13, 1991 California Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)

Where the water comes from

City of Vallejo draws water from 7 surface water intakes.

Annual water quality report

City of Vallejo 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

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.

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