SNO-CAP WATER SYSTEM
Oregon — Community Water System — PWSID: OR4100827
System Information
| PWSID | OR4100827 |
| System Name | SNO-CAP 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 | Mar 12, 1979 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | SISTERS |
| ZIP Code | 97759 |
| Address | 17050 VISTA RIDGE |
| Organization | SNO-CAP WATER SYSTEM |
| Phone | 541-549-2145 |
Population & Service
| Population Served | 90 |
| Service Connections | 45 |
Drinking Water Violations (101)
This water system has 101 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 30, 2025 | — | |
| Oct 1, 2024 | — | Other | No | No | — | — | — | Resolved | Nov 27, 2024 | — | |
| Jul 1, 2024 | Jul 31, 2024 | MON | No | No | — | — | — | Resolved | Jul 31, 2024 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MCL | Yes | No | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MCL | Yes | No | — | — | — | Resolved | Jul 31, 2022 | — | |
| Jul 1, 2022 | Jul 31, 2022 | MCL | Yes | No | — | — | — | Resolved | Jul 31, 2022 | — | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2011 | — | |
| Oct 1, 2011 | — | MR | No | Yes | — | — | — | Resolved | Jan 3, 2012 | — | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2011 | — | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2011 | — | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2011 | — | |
| Oct 1, 2011 | — | MR | No | Yes | — | — | — | Resolved | Jan 3, 2012 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2010 | — | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2010 | — | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2010 | — | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2010 | — | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Aug 1, 2002 | Aug 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2002 | — | |
| Jul 1, 2002 | Jul 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2002 | — | |
| Mar 1, 2002 | Mar 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | 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 | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.02 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.5 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2004 | — |
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.