TRI-COUNTY RURAL WATER SYSTEM
South Dakota - Community Water System - PWSID: SD4600112
System Information
| PWSID | SD4600112 |
| System Name | TRI-COUNTY RURAL WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | South Dakota |
| City | EAGLE BUTTE |
| ZIP Code | 57625 |
| Address | PO BOX 490 |
| Organization | TRI-COUNTY RURAL WATER SYSTEM |
| Phone | 6059647766 |
Population & Service
| Population Served | 2,190 |
| Service Connections | 876 |
Drinking Water Violations (172)
This water system has 172 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 2022 | Dec 31, 2022 | MON | No | No | - | - | - | Resolved | Dec 31, 2022 | - | |
| Dec 1, 2022 | Dec 31, 2022 | MON | No | No | - | - | - | Resolved | Dec 31, 2022 | - | |
| Dec 1, 2022 | Dec 31, 2022 | MON | No | No | - | - | - | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2022 | - | |
| May 19, 2013 | - | Other | No | No | - | - | - | Resolved | Apr 29, 2014 | - | |
| May 19, 2013 | - | Other | No | No | - | - | - | Resolved | Apr 29, 2014 | - | |
| Mar 1, 2009 | Mar 31, 2009 | TT | Yes | No | - | - | - | Resolved | Mar 31, 2009 | - | |
| Mar 1, 2009 | Mar 31, 2009 | TT | Yes | No | - | - | - | Resolved | Mar 31, 2009 | - | |
| Mar 1, 2009 | Mar 31, 2009 | TT | Yes | No | - | - | - | Resolved | Mar 31, 2009 | - | |
| Dec 1, 2008 | Dec 31, 2008 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2008 | - | |
| Dec 1, 2008 | Dec 31, 2008 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2008 | - | |
| Dec 1, 2008 | Dec 31, 2008 | TT | Yes | No | - | - | - | Resolved | Dec 31, 2008 | - | |
| Nov 1, 2006 | Nov 30, 2006 | TT | Yes | No | - | - | - | Resolved | Nov 30, 2006 | - | |
| Nov 1, 2006 | Nov 30, 2006 | TT | Yes | No | - | - | - | Resolved | Nov 30, 2006 | - | |
| Nov 1, 2006 | Nov 30, 2006 | TT | Yes | No | - | - | - | Resolved | Nov 30, 2006 | - | |
| Apr 10, 2006 | - | Other | No | No | - | - | - | Resolved | Mar 4, 2008 | - | |
| Apr 10, 2006 | - | Other | No | No | - | - | - | Resolved | Mar 4, 2008 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MCL | Yes | No | .085 | 0.080 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MCL | Yes | No | .085 | 0.080 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Jan 10, 2006 | - | Other | No | No | - | - | - | Resolved | Mar 4, 2008 | - | |
| Jan 10, 2006 | - | Other | No | No | - | - | - | Resolved | Mar 4, 2008 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | .085 | 0.080 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | .085 | 0.080 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | .085 | 0.080 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Oct 1, 2005 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2005 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MCL | Yes | No | .082 | 0.080 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Oct 1, 2005 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2005 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MCL | Yes | No | .082 | 0.080 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Oct 1, 2005 | Dec 31, 2005 | MCL | Yes | No | .082 | 0.080 mg/L | - | Resolved | Dec 31, 2005 | - | |
| Jul 10, 2005 | - | Other | No | No | - | - | - | Resolved | Mar 4, 2008 | - | |
| Jul 10, 2005 | - | Other | No | No | - | - | - | Resolved | Mar 4, 2008 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MCL | Yes | No | .085 | 0.080 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MCL | Yes | No | .085 | 0.080 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Jul 1, 2005 | Sep 30, 2005 | MCL | Yes | No | .085 | 0.080 mg/L | - | Resolved | Sep 30, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | TT | Yes | No | - | - | - | Resolved | Apr 30, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | TT | Yes | No | - | - | - | Resolved | Apr 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MCL | Yes | No | .065 | 0.060 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | TT | Yes | No | - | - | - | Resolved | Apr 30, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | TT | Yes | No | - | - | - | Resolved | Apr 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MCL | Yes | No | .09 | 0.080 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MCL | Yes | No | .09 | 0.080 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MCL | Yes | No | .065 | 0.060 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MCL | Yes | No | .065 | 0.060 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MCL | Yes | No | .065 | 0.060 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MCL | Yes | No | .09 | 0.080 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MCL | Yes | No | .09 | 0.080 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Jan 1, 2005 | Mar 31, 2005 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2005 | - | |
| Jan 1, 2005 | Mar 31, 2005 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2005 | - | |
| Jan 1, 2005 | Mar 31, 2005 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2005 | - |
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.