GUADALUPE WATER DEPARTMENT
California — Community Water System — PWSID: CA4210003
System Information
| PWSID | CA4210003 |
| System Name | GUADALUPE WATER DEPARTMENT |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| 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 | GUADALUPE |
| ZIP Code | 93434 |
| Address | 918 Obispo Street |
| Organization | TRUJILLO, DAVID |
| Phone | 805-356-3910 |
Population & Service
| Population Served | 8,897 |
| Service Connections | 2,452 |
Drinking Water Violations (15)
This water system has 15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2007 | Dec 12, 2007 | Other | No | No | — | — | — | Resolved | Dec 12, 2007 | Miscellaneous Other Rules | |
| Apr 1, 2006 | Jun 30, 2006 | Other | No | No | — | — | — | Resolved | Jun 30, 2006 | Miscellaneous Other Rules | |
| Jan 1, 2006 | Mar 31, 2006 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2006 | Mar 31, 2006 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2006 | Mar 31, 2006 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2006 | Mar 31, 2006 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2005 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 13, 2006 | Consumer Confidence Rule |
| Jul 1, 2005 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 13, 2006 | Consumer Confidence Rule |
| Apr 1, 2005 | Jun 30, 2006 | Other | No | No | — | — | — | Resolved | Jun 30, 2006 | Miscellaneous Other Rules | |
| Apr 1, 2005 | Jun 30, 2006 | Other | No | No | — | — | — | Resolved | Jun 30, 2006 | Miscellaneous Other Rules | |
| Jan 1, 2005 | Jun 30, 2005 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2005 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2005 | Jun 30, 2005 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2005 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2005 | Jun 30, 2005 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2005 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2005 | Jun 30, 2005 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2005 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| — | — | — | No | No | — | — | — | — | — | — |
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.