Public water system record

City of Davis

Serves Davis and El Macero, Yolo County, CA · 67,457 people served

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

CA5710001
DAVIS
CA
67,457 served

System profile

Source water Purchased surface water

ZIP 95616

EPA system ID CA5710001

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 Davis draws water from 6 wells.
Record on file since 1987, with 35 health-based violations before October 19, 2016.
Lead pipe inventory: 0 lead and 10,076 unknown out of 17,119 service lines.

Check whether City of Davis 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.

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

Full record since 1987

EPA's records for City of Davis go back to 1987. Before October 19, 2016 they list 35 health-based violations (3 resolved, 32 archived by EPA without a recorded fix) and no monitoring or reporting violations.

Violations that began in	Health-based	Monitoring and reporting
1980s	32	0
1990s	2	0
2000s	1	0

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

Show all 35 health-based violations before October 19, 2016

Contaminant	Start date	Status
Total Coliform Contaminant limit exceeded	Mar 1, 2005	Resolved
Total Coliform Contaminant limit exceeded	Jan 1, 1996	Resolved
Selenium Contaminant limit exceeded	Jan 1, 1990	Resolved
Selenium Contaminant limit exceeded	Dec 1, 1989	Archived
Selenium Contaminant limit exceeded	Nov 1, 1989	Archived
Selenium Contaminant limit exceeded	Oct 1, 1989	Archived
Selenium Contaminant limit exceeded	Sep 1, 1989	Archived
Selenium Contaminant limit exceeded	Aug 1, 1989	Archived
Selenium Contaminant limit exceeded	Jul 1, 1989	Archived
Selenium Contaminant limit exceeded	Jun 1, 1989	Archived
Selenium Contaminant limit exceeded	May 1, 1989	Archived
Selenium Contaminant limit exceeded	Apr 1, 1989	Archived
Selenium Contaminant limit exceeded	Mar 1, 1989	Archived
Selenium Contaminant limit exceeded	Feb 1, 1989	Archived
Selenium Contaminant limit exceeded	Jan 1, 1989	Archived
Selenium Contaminant limit exceeded	Dec 1, 1988	Archived
Selenium Contaminant limit exceeded	Nov 1, 1988	Archived
Selenium Contaminant limit exceeded	Oct 1, 1988	Archived
Selenium Contaminant limit exceeded	Sep 1, 1988	Archived
Selenium Contaminant limit exceeded	Aug 1, 1988	Archived
Selenium Contaminant limit exceeded	Jul 1, 1988	Archived
Selenium Contaminant limit exceeded	Jun 1, 1988	Archived
Selenium Contaminant limit exceeded	May 1, 1988	Archived
Selenium Contaminant limit exceeded	Apr 1, 1988	Archived
Selenium Contaminant limit exceeded	Mar 1, 1988	Archived
Selenium Contaminant limit exceeded	Feb 1, 1988	Archived
Selenium Contaminant limit exceeded	Jan 1, 1988	Archived
Selenium Contaminant limit exceeded	Dec 1, 1987	Archived
Selenium Contaminant limit exceeded	Nov 1, 1987	Archived
Selenium Contaminant limit exceeded	Oct 1, 1987	Archived
Selenium Contaminant limit exceeded	Sep 1, 1987	Archived
Selenium Contaminant limit exceeded	Aug 1, 1987	Archived
Selenium Contaminant limit exceeded	Jul 1, 1987	Archived
Selenium Contaminant limit exceeded	Jun 1, 1987	Archived
Selenium Contaminant limit exceeded	May 1, 1987	Archived

Where the water comes from

City of Davis draws water from 6 wells. It also buys water from Woodland-Davis Clean Water Agency. It also has an emergency connection to Uc - Davis. 1 other community water system buys water from City of Davis.

Annual water quality report

City of Davis 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.

Certified drinking water labs by state EPA guidance for private wells

Lead pipes

Total service lines reported	17,119
Lead pipes confirmed	0
Galvanized pipes needing replacement	0
Pipes with unknown material	10,076
Non-lead pipes confirmed	7,043
Pipes that may be lead or unknown	58.9% (10,076)
Inventory submitted	Oct 16, 2024
EPA reporting status	Reported all required service line types

Lines of unknown material count as possible lead until the utility identifies them.

Verify on EPA SDWIS EPA Get the Lead Out guidance