BIG BEND WATER SYSTEM
South Dakota — Community Water System — PWSID: 084690438
System Information
| PWSID | 084690438 |
| System Name | BIG BEND WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Ground Water |
| 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 | FORT THOMPSON |
| ZIP Code | 57339 |
| Address | — |
| Organization | BIG EAGLE, DON |
| Phone | 605-245-2544 |
Population & Service
| Population Served | 80 |
| Service Connections | 24 |
Drinking Water Violations (133)
This water system has 133 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2021 | Jun 30, 2021 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Jun 30, 2021 | Revised Total Coliform Rule |
| Jan 1, 2020 | Dec 31, 2022 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2022 | Inorganic Chemicals |
| Apr 1, 2012 | Apr 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2012 | Total Coliform Rule |
| Apr 1, 2012 | Apr 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2012 | Total Coliform Rule |
| Apr 1, 2012 | Apr 30, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2012 | Total Coliform Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 2, 2011 | Consumer Confidence Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 2, 2011 | Consumer Confidence Rule |
| Oct 1, 2010 | Oct 31, 2010 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | Total Coliform Rule |
| Oct 1, 2010 | Oct 31, 2010 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | Total Coliform Rule |
| Dec 1, 2008 | Dec 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | Total Coliform Rule |
| Jul 1, 2006 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 25, 2006 | Consumer Confidence Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2006 | Dec 31, 2006 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2006 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2007 | Endothall | MR | No | No | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Cadmium | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Cadmium | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | CYANIDE | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | CYANIDE | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Nickel | MR | No | No | — | — | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Nickel | MR | No | No | — | — | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Atrazine | MR | No | No | — | 0.003 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Atrazine | MR | No | No | — | 0.003 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Fluoride | MR | No | No | — | 4.0 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Fluoride | MR | No | No | — | 4.0 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Glyphosate | MR | No | No | — | 0.7 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Glyphosate | MR | No | No | — | 0.7 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Chromium | MR | No | No | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Hexachlorocyclopentadiene | MR | No | No | — | 0.05 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | ETHYLENE DIBROMIDE | MR | No | No | — | 0.00005 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | ETHYLENE DIBROMIDE | MR | No | No | — | 0.00005 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Dalapon | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Dalapon | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Chlordane | MR | No | No | — | 0.002 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Chlordane | MR | No | No | — | 0.002 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Di(2-ethylhexyl) adipate | MR | No | No | — | 0.4 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Barium | MR | No | No | — | 2 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Barium | MR | No | No | — | 2 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Di(2-ethylhexyl) adipate | MR | No | No | — | 0.4 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Carbofuran | MR | No | No | — | 0.04 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Chromium | MR | No | No | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | Inorganic Chemicals |
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.