CORONA, CITY OF
California — Community Water System — PWSID: CA3310037
System Information
| PWSID | CA3310037 |
| System Name | CORONA, CITY OF |
| 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 | CORONA |
| ZIP Code | 92878 |
| Address | 755 Public Safety Way |
| Organization | JOYCE, STACY |
| Phone | 951-736-2265 |
Population & Service
| Population Served | 168,575 |
| Service Connections | 44,981 |
Drinking Water Violations (25)
This water system has 25 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, 2022 | Jun 30, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2014 | Aug 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2014 | Total Coliform Rule |
| Aug 1, 2014 | Aug 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2014 | Total Coliform Rule |
| Jul 1, 2004 | Jul 31, 2004 | Other | No | No | — | — | — | Resolved | Jul 31, 2004 | Miscellaneous Other Rules | |
| Jul 1, 2004 | Jul 31, 2004 | Other | No | No | — | — | — | Resolved | Jul 31, 2004 | Miscellaneous Other Rules | |
| Nov 1, 2003 | Nov 30, 2003 | Other | No | No | — | — | — | Resolved | Nov 30, 2003 | Miscellaneous Other Rules | |
| Nov 1, 2003 | Nov 30, 2003 | Other | No | No | — | — | — | Resolved | Nov 30, 2003 | Miscellaneous Other Rules | |
| Jun 1, 2001 | Jun 30, 2001 | Nitrate | MCL | Yes | No | 46 MG/L | 10 mg/L | 45 | Resolved | Jun 30, 2001 | Nitrate Rule |
| Jun 1, 2001 | Jun 30, 2001 | Nitrate | MCL | Yes | No | 46 MG/L | 10 mg/L | 45 | Resolved | Jun 30, 2001 | Nitrate Rule |
| Oct 1, 1997 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2004 | Lead and Copper Rule |
| Oct 1, 1997 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2004 | Lead and Copper Rule |
| Jul 1, 1993 | Jul 31, 1993 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Jul 31, 1993 | Surface Water Treatment Rule |
| Jul 1, 1993 | Jul 31, 1993 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Jul 31, 1993 | Surface Water Treatment Rule |
| Jan 1, 1993 | Jan 31, 1993 | Nitrate | MCL | Yes | No | 51.5 MG/L | 10 mg/L | 45 | Resolved | Jan 31, 1993 | Nitrate Rule |
| Jan 1, 1993 | Jan 31, 1993 | Nitrate | MCL | Yes | No | 51.5 MG/L | 10 mg/L | 45 | Resolved | Jan 31, 1993 | Nitrate Rule |
| Jan 1, 1993 | Jan 31, 1993 | Nitrate | MCL | Yes | No | 51.5 MG/L | 10 mg/L | 45 | Resolved | Jan 31, 1993 | Nitrate Rule |
| Nov 1, 1989 | Nov 30, 1989 | Other | No | No | — | — | — | Archived | Nov 30, 1989 | Miscellaneous Other Rules | |
| Jan 1, 1989 | Jan 31, 1989 | Other | No | No | — | — | — | Archived | Jan 31, 1989 | Miscellaneous Other Rules | |
| Oct 1, 1980 | Dec 31, 1980 | Nitrate | MCL | Yes | No | — | 10 mg/L | — | Archived | Dec 31, 1980 | Nitrate Rule |
| Mar 30, 1980 | Apr 29, 1980 | Nitrate | MCL | Yes | No | — | 10 mg/L | — | Archived | Apr 29, 1980 | Nitrate Rule |
| Oct 28, 1979 | Jan 27, 1980 | Other | No | No | — | — | — | Archived | Jan 27, 1980 | Miscellaneous Other Rules | |
| Oct 28, 1979 | Jan 27, 1980 | Nitrate | MCL | Yes | No | — | 10 mg/L | — | Archived | Jan 27, 1980 | Nitrate 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.