SUISUN-SOLANO WATER AUTHORITY
California — Community Water System — PWSID: CA4810005
System Information
| PWSID | CA4810005 |
| System Name | SUISUN-SOLANO WATER AUTHORITY |
| System Type | Community Water System |
| Water Source | Surface 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 | VACAVILLE |
| ZIP Code | 95688-8834 |
| Address | 810 VACA VALLEY PKWY STE 201 |
| Organization | KEATEN, CARY |
| Phone | 707-455-4009 |
Population & Service
| Population Served | 29,105 |
| Service Connections | 8,713 |
Drinking Water Violations (23)
This water system has 23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Jul 1, 2024 | Sep 30, 2024 | TTHM | MCL | Yes | No | .087 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2024 | Sep 30, 2024 | TTHM | MCL | Yes | No | .087 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 | Jun 30, 2024 | TTHM | MCL | Yes | No | .091 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 | Jun 30, 2024 | TTHM | MCL | Yes | No | .091 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 | Jun 30, 2024 | TTHM | MCL | Yes | No | .081 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 | Jun 30, 2024 | TTHM | MCL | Yes | No | .081 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 | Jun 30, 2024 | TTHM | MCL | Yes | No | .084 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 | Jun 30, 2024 | TTHM | MCL | Yes | No | .084 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Mar 31, 2024 | TTHM | MCL | Yes | No | .093 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Mar 31, 2024 | TTHM | MCL | Yes | No | .083 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Mar 31, 2024 | TTHM | MCL | Yes | No | .083 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Mar 31, 2024 | TTHM | MCL | Yes | No | .093 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | Dec 31, 2023 | TTHM | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | Dec 31, 2023 | TTHM | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | Dec 31, 2023 | TTHM | MCL | Yes | No | .09 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | Dec 31, 2023 | TTHM | MCL | Yes | No | .09 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | Dec 31, 2023 | TTHM | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | Dec 31, 2023 | TTHM | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 | Sep 30, 2023 | TTHM | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 | Sep 30, 2023 | TTHM | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2000 | Jan 31, 2000 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2000 | Surface Water Treatment Rule |
| Jan 1, 2000 | Jan 31, 2000 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2000 | Surface Water Treatment Rule |
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.