TERRY TROJAN WATER DISTRICT
South Dakota — Community Water System — PWSID: SD4600053
System Information
| PWSID | SD4600053 |
| System Name | TERRY TROJAN WATER DISTRICT |
| System Type | Community Water System |
| Water Source | Ground 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 | BLACK HAWK |
| ZIP Code | 57718 |
| Address | PO BOX 761 |
| Organization | TERRY TROJAN WATER DISTRICT |
| Phone | 6057864366 |
Population & Service
| Population Served | 400 |
| Service Connections | 220 |
Drinking Water Violations (419)
This water system has 419 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2011 | — | MR | No | No | — | TT | — | Resolved | Sep 19, 2012 | — | |
| Oct 1, 2011 | — | MR | No | No | — | TT | — | Resolved | Sep 19, 2012 | — | |
| Oct 1, 2011 | — | MR | No | No | — | TT | — | Resolved | Sep 19, 2012 | — | |
| Apr 1, 2008 | — | Other | No | No | — | — | — | Resolved | Apr 14, 2008 | — | |
| Apr 1, 2008 | — | Other | No | No | — | — | — | Resolved | Apr 14, 2008 | — | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | .011 | 0.010 mg/L | — | Resolved | Mar 31, 2008 | — | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | .011 | 0.010 mg/L | — | Resolved | Mar 31, 2008 | — | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | .011 | 0.010 mg/L | — | Resolved | Mar 31, 2008 | — | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | .017 | 0.010 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | .017 | 0.010 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MCL | Yes | No | .022 | 0.010 mg/L | — | Resolved | Sep 30, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MCL | Yes | No | .022 | 0.010 mg/L | — | Resolved | Sep 30, 2007 | — | |
| Jul 1, 2007 | Sep 30, 2007 | MCL | Yes | No | .022 | 0.010 mg/L | — | Resolved | Sep 30, 2007 | — | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .017 | 0.010 mg/L | — | Resolved | Jun 30, 2007 | — | |
| Apr 1, 2007 | Jun 30, 2007 | MCL | Yes | No | .017 | 0.010 mg/L | — | Resolved | Jun 30, 2007 | — | |
| Jan 1, 2007 | — | Other | No | No | — | — | — | Resolved | Jul 6, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .011 | 0.010 mg/L | — | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | — | Other | No | No | — | — | — | Resolved | Jul 6, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .011 | 0.010 mg/L | — | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MCL | Yes | No | .011 | 0.010 mg/L | — | Resolved | Mar 31, 2007 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.00005 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.02 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.5 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.4 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.5 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.4 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.0005 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Jun 30, 2006 | — |
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.