PASCO WATER DEPARTMENT
Washington — Community Water System — PWSID: WA5366400
System Information
| PWSID | WA5366400 |
| System Name | PASCO WATER DEPARTMENT |
| 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 | Pasco |
| ZIP Code | 99301 |
| Address | PO Box 293 |
| Organization | PASCO WATER DEPARTMENT |
| Phone | — |
Population & Service
| Population Served | 115,102 |
| Service Connections | 31,958 |
Drinking Water Violations (84)
This water system has 84 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, 2025 | Dec 31, 2025 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2025 | — | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | — | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.2 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.5 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.007 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.001 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.004 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.0002 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.003 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.4 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.0002 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.001 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.003 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.006 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.0002 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.0004 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Dec 31, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2025 | MR | No | Yes | — | 0.04 mg/L | — | Archived | Dec 31, 2025 | — | |
| Dec 1, 2017 | Dec 31, 2017 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2017 | — | |
| Dec 1, 2017 | Dec 31, 2017 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2017 | — | |
| Jul 1, 2016 | — | Other | No | No | — | — | — | Resolved | Oct 24, 2016 | — | |
| Jul 1, 2010 | — | Other | No | No | — | — | — | Resolved | Oct 27, 2010 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | — |
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.