CALICO WATER SYSTEM
South Dakota - Community Water System - PWSID: 084690476
System Information
| PWSID | 084690476 |
| System Name | CALICO WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Non-Inventory |
| Owner Type | Native American |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 4, 1980 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | South Dakota |
| City | PINE RIDGE |
| ZIP Code | 57770 |
| Address | OST WTR & SWR CO |
| Organization | O'ROURKE, SAM |
| Phone | 605-867-5804 |
Population & Service
| Population Served | - |
| Service Connections | 18 |
Drinking Water Violations (41)
This water system has 41 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, 2010 | - | Other | No | No | - | - | - | Resolved | Aug 12, 2010 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Aug 12, 2010 | - | |
| Jul 1, 2009 | - | Other | No | No | - | - | - | Resolved | Oct 26, 2009 | - | |
| Jul 1, 2009 | - | Other | No | No | - | - | - | Resolved | Oct 26, 2009 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Oct 7, 2008 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Oct 7, 2008 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Sep 28, 2007 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Sep 28, 2007 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2006 | - | |
| Mar 1, 2005 | Mar 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2005 | - | |
| Mar 1, 2005 | Mar 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2005 | - | |
| Mar 1, 2005 | Mar 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2005 | - | |
| Mar 1, 2005 | Mar 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2005 | - | |
| May 1, 1995 | May 31, 1995 | MR | No | No | - | 5% of samples | - | Archived | May 31, 1995 | - | |
| Jan 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 1994 | - | |
| Nov 1, 1993 | Nov 30, 1993 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1993 | - | |
| Feb 1, 1993 | Feb 28, 1993 | MR | No | No | - | 5% of samples | - | Archived | Feb 28, 1993 | - | |
| Nov 1, 1992 | Nov 30, 1992 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1992 | - | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | No | - | 5% of samples | - | Archived | Sep 30, 1992 | - | |
| Sep 1, 1992 | Sep 30, 1992 | MR | No | No | - | 5% of samples | - | Archived | Sep 30, 1992 | - | |
| Jul 1, 1992 | Jul 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Jul 31, 1992 | - | |
| Mar 1, 1992 | Mar 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1992 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1991 | - | |
| May 1, 1991 | May 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | May 31, 1991 | - | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Dec 31, 1985 | - | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | - | 2 mg/L | - | Archived | Dec 31, 1985 | - | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 1985 | - | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 1985 | - | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | - | 4.0 mg/L | - | Archived | Dec 31, 1985 | - | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Dec 31, 1985 | - | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | - | 0.1 mg/L | - | Archived | Dec 31, 1985 | - | |
| Jan 1, 1983 | Dec 31, 1985 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 1985 | - | |
| Jan 1, 1982 | Dec 31, 1985 | MR | No | Yes | - | 15 pCi/L | - | Archived | Dec 31, 1985 | - | |
| Jul 1, 1976 | Jun 30, 1980 | MR | No | No | - | 15 pCi/L | - | Archived | Jun 30, 1980 | - | |
| Jul 1, 1976 | Jun 30, 1980 | MR | No | No | - | 5 pCi/L | - | Archived | Jun 30, 1980 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.