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 | Nov 17, 2025 |
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 (42)
This water system has 42 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 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 15, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2025 | Dec 31, 2025 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 15, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Archived | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Archived | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 29, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 18, 2022 | Lead and Copper Rule |
| Sep 3, 2022 | — | Long Term 2 Enhanced Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Aug 15, 2025 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Jan 1, 2020 | Dec 31, 2022 | Asbestos | MR | No | Yes | — | 7 MFL | — | Archived | Dec 31, 2022 | Inorganic Chemicals |
| Mar 1, 2019 | Mar 31, 2019 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Mar 31, 2019 | Revised Total Coliform Rule |
| Mar 1, 2019 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Oct 19, 2023 | Ground Water Rule |
| Sep 1, 2018 | Aug 31, 2019 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2018 | Aug 31, 2019 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 7, 2018 | Lead and Copper Rule |
| Jul 1, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 7, 2018 | Lead and Copper Rule |
| Jan 1, 2014 | Dec 31, 2014 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2014 | Dec 31, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 21, 2014 | Lead and Copper Rule |
| Jul 1, 2012 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 21, 2014 | Lead and Copper Rule |
| Jul 1, 2012 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 21, 2014 | Lead and Copper Rule |
| Oct 1, 2011 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 21, 2014 | Lead and Copper Rule |
| Jul 1, 2010 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 12, 2010 | Consumer Confidence Rule |
| Jul 1, 2010 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 12, 2010 | Consumer Confidence Rule |
| Jul 1, 2009 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 26, 2009 | Consumer Confidence Rule |
| Jul 1, 2009 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 26, 2009 | Consumer Confidence Rule |
| Jul 1, 2009 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 26, 2009 | Consumer Confidence Rule |
| Jul 1, 2008 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 7, 2008 | Consumer Confidence Rule |
| Jul 1, 2008 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 7, 2008 | Consumer Confidence Rule |
| Jul 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 28, 2007 | Consumer Confidence Rule |
| Jul 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 28, 2007 | Consumer Confidence Rule |
| Mar 1, 2005 | Mar 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2005 | Total Coliform Rule |
| Mar 1, 2005 | Mar 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2005 | Total Coliform Rule |
| Mar 1, 2005 | Mar 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2005 | Total Coliform Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 4, 2005 | Lead and Copper Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 4, 2005 | Lead and Copper Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 4, 2005 | Lead and Copper Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 4, 2005 | Lead and Copper Rule |
| Nov 1, 2002 | Nov 30, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2002 | Total Coliform Rule |
| Nov 1, 2002 | Nov 30, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2002 | Total Coliform Rule |
| Nov 1, 2002 | Nov 30, 2002 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 2002 | Total Coliform Rule |
| Jul 1, 1998 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 6, 2018 | Lead and Copper Rule |
| Sep 1, 1995 | Sep 30, 1995 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1995 | Total Coliform Rule |
| Sep 1, 1994 | Sep 30, 1994 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1994 | Total Coliform Rule |
| Jul 1, 1976 | Jun 30, 1980 | Combined Radium (-226 and -228) | MR | No | No | — | 5 pCi/L | — | Archived | Jun 30, 1980 | Radionuclides and Revised Rad Rule |
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.