SILVANA WATER ASSOCIATION
Washington — Community Water System — PWSID: WA5379050
System Information
| PWSID | WA5379050 |
| System Name | SILVANA WATER ASSOCIATION |
| 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 | Feb 7, 1981 |
| Last Reported | Dec 11, 2025 |
Location & Contact
| State | Washington |
| City | Mount Vernon |
| ZIP Code | 98273 |
| Address | 14263 Calhoun Rd |
| Organization | SILVANA WATER ASSOCIATION |
| Phone | — |
Population & Service
| Population Served | 153 |
| Service Connections | 133 |
Drinking Water Violations (51)
This water system has 51 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, 2008 | Dec 31, 2010 | DICHLOROMETHANE | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | 1,2-Dichloropropane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | 1,1,1-Trichloroethane | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | trans-1,2-Dichloroethylene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | o-Dichlorobenzene | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | p-Dichlorobenzene | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Carbon tetrachloride | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | 1,1,2-Trichloroethane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | 1,2,4-Trichlorobenzene | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Toluene | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | cis-1,2-Dichloroethylene | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Ethylbenzene | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Benzene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | CHLOROBENZENE | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Styrene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | Vinyl chloride | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | 1,1-Dichloroethylene | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Jan 1, 2008 | Dec 31, 2010 | 1,2-Dichloroethane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2010 | Volatile Organic Chemicals |
| Aug 1, 2004 | Aug 31, 2004 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 2004 | Total Coliform Rule |
| Jun 1, 2004 | Jun 30, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jun 30, 2004 | Total Coliform Rule |
| Apr 1, 2004 | Apr 30, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 2004 | Total Coliform Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2004 | Lead and Copper Rule |
| Jan 1, 2003 | Dec 31, 2003 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2003 | Nitrate Rule |
| May 1, 2000 | May 31, 2000 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | May 31, 2000 | Total Coliform Rule |
| Oct 19, 1999 | Oct 20, 2002 | Consumer Confidence Rule | Other | No | Yes | — | — | — | Resolved | Oct 20, 2002 | Consumer Confidence Rule |
| Aug 1, 1999 | Aug 31, 1999 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Aug 31, 1999 | Total Coliform Rule |
| Mar 1, 1998 | Mar 31, 1998 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Mar 31, 1998 | Total Coliform Rule |
| Aug 1, 1996 | Aug 31, 1996 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Aug 31, 1996 | Total Coliform Rule |
| Jul 1, 1996 | Jul 31, 1996 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jul 31, 1996 | Total Coliform Rule |
| Apr 1, 1996 | Apr 30, 1996 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Apr 30, 1996 | Total Coliform Rule |
| Oct 1, 1979 | Oct 31, 1979 | Chromium | MR | No | No | — | 0.1 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 | Mercury | MR | No | No | — | 0.002 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 | 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 | Selenium | MR | No | No | — | 0.05 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.