PETALUMA, CITY OF
California — Community Water System — PWSID: CA4910006
System Information
| PWSID | CA4910006 |
| System Name | PETALUMA, CITY OF |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 22, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | California |
| City | PETALUMA |
| ZIP Code | 94954 |
| Address | 202 North McDowell Boulevard |
| Organization | HERRERA, DAN |
| Phone | 707-364-5592 |
Population & Service
| Population Served | 60,781 |
| Service Connections | 20,511 |
Drinking Water Violations (3)
This water system has 3 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2005 | Mar 31, 2005 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2005 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2005 | Mar 31, 2005 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2005 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 1989 | Apr 30, 1989 | Other | No | No | — | — | — | Archived | Apr 30, 1989 | Miscellaneous Other Rules |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.