Public water system record
City of Daly City
Serves Daly City, San Mateo County, CA · 104,901 people served
Federal records show no health-based violations and no monitoring or reporting issues for City of Daly City in the last ten years.
System profile
- 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 Daly City draws water from 5 wells (1 of them for emergency, seasonal or other part-time use).
- Record on file since 1992, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 21,770 service lines.
Check whether City of Daly City serves your address
Health-based violations
Since October 2016Violation 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 1992
EPA's records for City of Daly City go back to 1992. Before October 19, 2016 they list 4 health-based violations (4 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 0 |
| 2000s | 2 | 0 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 2003, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2000 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jul 1, 1998 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1992 | Resolved |
Where the water comes from
City of Daly City draws water from 5 wells (1 of them for emergency, seasonal or other part-time use). It also buys water from San Francisco Regional Water System. It also has emergency connections to North Coast County Water Dist, California Water Service-S San Francisco, Westborough Water District, Guadalupe Valley Mid and City of Brisbane. 4 other public water systems have emergency connections to City of Daly City.
Buys water from
- San Francisco Regional Water System Burlingame, CA
Emergency or part-time connections to
- North Coast County Water Dist Pacifica, CA
- California Water Service-S San Francisco San Jose, CA
- Westborough Water District South San Francisco, CA
- Guadalupe Valley Mid Brisbane, CA
- City of Brisbane Brisbane, CA
Annual water quality report
City of Daly City 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