CHINOOK WATER DISTRICT
Washington — Community Water System — PWSID: WA5312800
System Information
| PWSID | WA5312800 |
| System Name | CHINOOK WATER DISTRICT |
| 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 | Dec 11, 2025 |
Location & Contact
| State | Washington |
| City | Chinook |
| ZIP Code | 98614 |
| Address | PO BOX 191 |
| Organization | CHINOOK WATER DISTRICT |
| Phone | — |
Population & Service
| Population Served | 664 |
| Service Connections | 428 |
Drinking Water Violations (20)
This water system has 20 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, 2015 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 25, 2015 | Consumer Confidence Rule |
| Jul 1, 2013 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 25, 2013 | Consumer Confidence Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 29, 2012 | Consumer Confidence Rule |
| Jun 1, 1995 | Jun 30, 1995 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Archived | Jun 30, 1995 | Surface Water Treatment Rule |
| Feb 1, 1995 | Feb 28, 1995 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Archived | Feb 28, 1995 | Surface Water Treatment Rule |
| Aug 1, 1994 | Aug 31, 1994 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Archived | Aug 31, 1994 | Surface Water Treatment Rule |
| Jul 1, 1994 | Jul 31, 1994 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Archived | Jul 31, 1994 | Surface Water Treatment Rule |
| Apr 1, 1994 | Apr 30, 1994 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Archived | Apr 30, 1994 | Surface Water Treatment Rule |
| Mar 1, 1994 | Mar 31, 1994 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Archived | Mar 31, 1994 | Surface Water Treatment Rule |
| Feb 1, 1994 | Feb 28, 1994 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Archived | Feb 28, 1994 | Surface Water Treatment Rule |
| Jan 1, 1994 | Jan 31, 1994 | Surface Water Treatment Rule | TT | Yes | No | — | — | — | Archived | Jan 31, 1994 | Surface Water Treatment Rule |
| Oct 1, 1979 | Oct 31, 1979 | Mercury | MR | No | No | — | 0.002 mg/L | — | Archived | Oct 31, 1979 | Inorganic Chemicals |
| Oct 1, 1979 | Oct 31, 1979 | Fluoride | MR | No | No | — | 4.0 mg/L | — | Archived | Oct 31, 1979 | Inorganic Chemicals |
| Oct 1, 1979 | Oct 31, 1979 | Cadmium | MR | No | No | — | 0.005 mg/L | — | Archived | Oct 31, 1979 | Inorganic Chemicals |
| Oct 1, 1979 | Oct 31, 1979 | Gross Alpha, Excl. Radon and U | MR | No | No | — | 15 pCi/L | — | Archived | Oct 31, 1979 | Radionuclides and Revised Rad Rule |
| Oct 1, 1979 | Oct 31, 1979 | Selenium | MR | No | No | — | 0.05 mg/L | — | Archived | Oct 31, 1979 | Inorganic Chemicals |
| Oct 1, 1979 | Oct 31, 1979 | Nitrate | MR | No | No | — | 10 mg/L | — | Archived | Oct 31, 1979 | Nitrate Rule |
| Oct 1, 1979 | Oct 31, 1979 | Barium | MR | No | No | — | 2 mg/L | — | Archived | Oct 31, 1979 | Inorganic Chemicals |
| Oct 1, 1979 | Oct 31, 1979 | Arsenic | MR | No | No | — | 0.010 mg/L | — | Archived | Oct 31, 1979 | Arsenic Rule |
| Oct 1, 1979 | Oct 31, 1979 | Chromium | MR | No | No | — | 0.1 mg/L | — | Archived | Oct 31, 1979 | Inorganic Chemicals |
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.