MEDICAL LAKE CITY OF
Washington — Community Water System — PWSID: WA5353400
System Information
| PWSID | WA5353400 |
| System Name | MEDICAL LAKE CITY OF |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Feb 7, 1981 |
| Last Reported | Dec 11, 2025 |
Location & Contact
| State | Washington |
| City | Medical Lake |
| ZIP Code | 99022-0369 |
| Address | PO Box 369 |
| Organization | MEDICAL LAKE CITY OF |
| Phone | — |
Population & Service
| Population Served | 4,982 |
| Service Connections | 1,820 |
Drinking Water Violations (10)
This water system has 10 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, 2021 | Dec 31, 2021 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2021 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2021 | Dec 31, 2021 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2021 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 26, 2016 | Consumer Confidence Rule |
| Jul 1, 2015 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 17, 2015 | Consumer Confidence Rule |
| Mar 1, 2000 | Mar 31, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Mar 31, 2000 | Total Coliform Rule |
| Mar 1, 2000 | Mar 31, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Mar 31, 2000 | Total Coliform Rule |
| Mar 1, 2000 | Mar 31, 2000 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Mar 31, 2000 | Total Coliform Rule |
| Feb 1, 1992 | Feb 29, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Feb 29, 1992 | Total Coliform Rule |
| Feb 1, 1992 | Feb 29, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Feb 29, 1992 | Total Coliform Rule |
| Feb 1, 1992 | Feb 29, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Feb 29, 1992 | Total Coliform 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.