KENNEWICK CITY OF
Washington — Community Water System — PWSID: WA5338100
System Information
| PWSID | WA5338100 |
| System Name | KENNEWICK CITY OF |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Feb 7, 1981 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Kennewick |
| ZIP Code | 99336 |
| Address | PO Box 6108 |
| Organization | KENNEWICK CITY OF |
| Phone | — |
Population & Service
| Population Served | 118,164 |
| Service Connections | 39,118 |
Drinking Water Violations (7)
This water system has 7 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, 2023 | Jun 30, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Apr 1, 2023 | Jun 30, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2023 | — | |
| Jul 1, 2016 | Sep 30, 2016 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2016 | — | |
| Jul 1, 2016 | Sep 30, 2016 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2016 | — | |
| Jul 1, 2016 | — | Other | No | No | — | — | — | Resolved | Oct 20, 2016 | — | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 1993 | — | |
| Oct 1, 1979 | Oct 31, 1979 | MR | No | No | — | 15 pCi/L | — | Archived | Oct 31, 1979 | — |
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.