Clark Addition Water System
Washington — Community Water System — PWSID: WA53AB809
System Information
| PWSID | WA53AB809 |
| System Name | Clark Addition Water System |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jun 30, 2009 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Pasco |
| ZIP Code | 99301 |
| Address | 3921 Ivy Rd |
| Organization | Clark Addition Water System |
| Phone | — |
Population & Service
| Population Served | 189 |
| Service Connections | 71 |
Drinking Water Violations (6)
This water system has 6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | — | Other | No | No | — | — | — | Resolved | Sep 19, 2025 | — | |
| Jan 1, 2021 | — | MR | No | No | — | TT | — | Resolved | Jul 2, 2024 | — | |
| Jun 1, 2019 | Jun 30, 2019 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2019 | — | |
| Jul 1, 2017 | Jul 31, 2017 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2017 | — | |
| Jan 1, 2010 | — | MR | No | No | — | TT | — | Resolved | Jun 14, 2011 | — | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2009 | — |
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.