WOUNDED KNEE WATER SYSTEM
South Dakota - Community Water System - PWSID: 084690478
System Information
| PWSID | 084690478 |
| System Name | WOUNDED KNEE WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| 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 | P.O. Box 1054 (17675 US Hwy 18) |
| Organization | ABOLD, ERNIE |
| Phone | 605-867-5804 |
Population & Service
| Population Served | 255 |
| Service Connections | 51 |
Drinking Water Violations (86)
This water system has 86 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, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 15, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 15, 2025 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Sep 29, 2022 | - | MR | No | No | - | TT | - | Resolved | Oct 18, 2022 | - | |
| Sep 3, 2022 | - | TT | Yes | No | - | - | - | Resolved | Aug 15, 2025 | - | |
| Jan 1, 2020 | Dec 31, 2022 | MR | No | Yes | - | 7 MFL | - | Archived | Dec 31, 2022 | - | |
| Mar 1, 2019 | Mar 31, 2019 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2019 | - | |
| Mar 1, 2019 | - | TT | Yes | No | - | - | - | Resolved | Oct 19, 2023 | - | |
| Sep 1, 2018 | Aug 31, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Sep 1, 2018 | Aug 31, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2019 | - | |
| Jul 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Aug 7, 2018 | - | |
| Jul 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Aug 7, 2018 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2014 | - | |
| Jul 1, 2013 | - | MR | No | No | - | TT | - | Resolved | Feb 21, 2014 | - | |
| Jul 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Feb 21, 2014 | - | |
| Jul 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Feb 21, 2014 | - | |
| Oct 1, 2011 | - | MR | No | No | - | TT | - | Resolved | Feb 21, 2014 | - | |
| 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, 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 | - | |
| 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 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Oct 4, 2005 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Oct 4, 2005 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Oct 4, 2005 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Oct 4, 2005 | - | |
| Nov 1, 2002 | Nov 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2002 | - | |
| Nov 1, 2002 | Nov 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2002 | - | |
| Nov 1, 2002 | Nov 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2002 | - | |
| Jul 1, 1998 | - | MR | No | No | - | TT | - | Resolved | Feb 6, 2018 | - | |
| Jul 1, 1996 | Jul 31, 1996 | MCL | Yes | No | - | 5% of samples | - | Archived | Jul 31, 1996 | - | |
| Jul 1, 1996 | Jul 31, 1996 | MR | No | No | - | 5% of samples | - | Archived | Jul 31, 1996 | - | |
| Mar 1, 1996 | Mar 31, 1996 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1996 | - | |
| Nov 1, 1995 | Nov 30, 1995 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1995 | - | |
| Oct 1, 1995 | Oct 31, 1995 | MR | No | No | - | 5% of samples | - | Archived | Oct 31, 1995 | - | |
| Sep 1, 1995 | Sep 30, 1995 | MCL | Yes | No | - | 5% of samples | - | Archived | Sep 30, 1995 | - | |
| Sep 1, 1995 | Sep 30, 1995 | MR | No | No | - | 5% of samples | - | Archived | Sep 30, 1995 | - | |
| Sep 1, 1995 | Sep 30, 1995 | MCL | Yes | No | - | 5% of samples | - | Archived | Sep 30, 1995 | - | |
| Sep 1, 1995 | Sep 30, 1995 | MR | No | No | - | 5% of samples | - | Archived | Sep 30, 1995 | - | |
| Aug 1, 1995 | Aug 31, 1995 | MR | No | No | - | 5% of samples | - | Archived | Aug 31, 1995 | - | |
| Aug 1, 1995 | Aug 31, 1995 | MR | No | Yes | - | 5% of samples | - | Archived | Aug 31, 1995 | - |
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.