BLACK HAWK OIL COMPANY
South Dakota — Transient Non-Community — PWSID: SD4602207
System Information
| PWSID | SD4602207 |
| System Name | BLACK HAWK OIL COMPANY |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 22, 2000 |
| Last Reported | Dec 9, 2025 |
Location & Contact
| State | South Dakota |
| City | BLACK HAWK |
| ZIP Code | 57718 |
| Address | PO BOX 740 |
| Organization | BLACK HAWK OIL COMPANY |
| Phone | 6057185921 |
Population & Service
| Population Served | 500 |
| Service Connections | 1 |
Drinking Water Violations (11)
This water system has 11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 1, 2013 | Feb 28, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 2013 | Total Coliform Rule |
| Feb 1, 2013 | Feb 28, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 2013 | Total Coliform Rule |
| Dec 5, 2010 | — | Public Notice | Other | No | No | — | — | — | Resolved | Sep 10, 2014 | Public Notice Rule and Revised PN Rule |
| Nov 1, 2009 | Nov 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2009 | Total Coliform Rule |
| Nov 1, 2009 | Nov 30, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2009 | Total Coliform Rule |
| Sep 1, 2009 | Sep 30, 2009 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2009 | Total Coliform Rule |
| Sep 1, 2009 | Sep 30, 2009 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2009 | Total Coliform Rule |
| Mar 11, 2002 | — | Public Notice | Other | No | No | — | — | — | Resolved | Dec 31, 2010 | Public Notice Rule and Revised PN Rule |
| Feb 1, 2002 | Feb 28, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2002 | Total Coliform Rule |
| Jan 1, 2002 | Jan 31, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2002 | Total Coliform Rule |
| Jul 11, 2001 | Jul 11, 2006 | Other | No | No | — | — | — | Resolved | Jul 11, 2006 | Total Coliform 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.