BENTONITE PERFORMANCE MINERALS - COLONY
South Dakota — Non-Transient Non-Community — PWSID: WY5601476
System Information
| PWSID | WY5601476 |
| System Name | BENTONITE PERFORMANCE MINERALS - COLONY |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 18, 2001 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | South Dakota |
| City | BELLE FOURCHE |
| ZIP Code | 57717 |
| Address | 554 US HWY 212 |
| Organization | O'BRIAN, JOHN |
| Phone | 307-896-8514 |
Population & Service
| Population Served | 180 |
| Service Connections | 5 |
Drinking Water Violations (35)
This water system has 35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2022 | May 31, 2022 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | May 31, 2022 | — | |
| May 1, 2022 | May 31, 2022 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | May 31, 2022 | — | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2010 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 17, 2003 | — | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | — | 5% of samples | — | Archived | Dec 31, 2007 | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Resolved | Nov 2, 2010 | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Resolved | Nov 2, 2010 | — | |
| Oct 1, 2007 | — | MR | No | No | — | TT | — | Resolved | Nov 2, 2010 | — | |
| Sep 1, 2005 | Sep 30, 2005 | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 2005 | — | |
| Apr 1, 2002 | Jun 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2002 | — | |
| Apr 1, 2002 | Jun 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2002 | — | |
| Apr 1, 2002 | Jun 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2002 | — | |
| Jan 1, 2002 | Mar 31, 2002 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 2002 | — | |
| Jan 1, 2002 | Mar 31, 2002 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 2002 | — | |
| Jan 1, 2002 | Mar 31, 2002 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 2002 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2001 | — | |
| Jul 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — | |
| Jul 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — | |
| Jul 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — | |
| Jul 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — | |
| Jul 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — | |
| Jan 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — | |
| Jan 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — | |
| Jan 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — | |
| Jan 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — | |
| Jan 1, 2001 | — | MR | No | No | — | TT | — | Resolved | Nov 22, 2004 | — |
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.