PATTISON 500
Washington - Community Water System - PWSID: WA5366578
System Information
| PWSID | WA5366578 |
| System Name | PATTISON 500 |
| 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 | Mar 26, 2026 |
Location & Contact
| State | Washington |
| City | Lacey |
| ZIP Code | 98503 |
| Address | 1230 Ruddell Rd SE |
| Organization | PATTISON 500 |
| Phone | - |
Population & Service
| Population Served | 4,643 |
| Service Connections | 1,865 |
Drinking Water Violations (67)
This water system has 67 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, 2012 | - | Other | No | No | - | - | - | Resolved | Oct 22, 2012 | - | |
| Jul 1, 2011 | - | Other | No | No | - | - | - | Resolved | Oct 31, 2011 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.02 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 4.0 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.004 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.2 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.006 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | - | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 0.1 mg/L | - | Archived | Dec 31, 2004 | - | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | - | 2 mg/L | - | Archived | Dec 31, 2004 | - | |
| May 1, 1998 | May 31, 1998 | MCL | Yes | No | - | 5% of samples | - | Archived | May 31, 1998 | - | |
| May 1, 1998 | May 31, 1998 | MCL | Yes | No | - | 5% of samples | - | Archived | May 31, 1998 | - | |
| May 1, 1998 | May 31, 1998 | MCL | Yes | No | - | 5% of samples | - | Archived | May 31, 1998 | - | |
| Apr 1, 1998 | Apr 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1998 | - | |
| Apr 1, 1998 | Apr 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1998 | - | |
| Apr 1, 1998 | Apr 30, 1998 | MCL | Yes | No | - | 5% of samples | - | Archived | Apr 30, 1998 | - | |
| Nov 1, 1995 | Nov 30, 1995 | MCL | Yes | No | - | 5% of samples | - | Archived | Nov 30, 1995 | - | |
| Oct 19, 1994 | Nov 18, 1994 | MR | No | Yes | - | 5% of samples | - | Archived | Nov 18, 1994 | - | |
| Mar 1, 1992 | Mar 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1992 | - |
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.