TRAIL WEST SANITARY DISTRICT
South Dakota — Community Water System — PWSID: SD4600239
System Information
| PWSID | SD4600239 |
| System Name | TRAIL WEST SANITARY DISTRICT |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Inactive |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Dec 9, 2025 |
Location & Contact
| State | South Dakota |
| City | BLACK HAWK |
| ZIP Code | 57718 |
| Address | 7005 TIMBERLINE ROAD |
| Organization | TRAIL WEST SANITARY DISTRICT |
| Phone | 6057875653 |
Population & Service
| Population Served | 260 |
| Service Connections | 104 |
Drinking Water Violations (5)
This water system has 5 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 17, 2009 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | May 3, 2010 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Feb 17, 2009 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | May 3, 2010 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Nov 20, 1996 | Nov 20, 2001 | Other | No | No | — | — | — | Resolved | Nov 20, 2001 | Total Coliform Rule | |
| Jul 1, 1976 | Jun 30, 1980 | Combined Radium (-226 and -228) | MR | No | No | — | 5 pCi/L | — | Archived | Jun 30, 1980 | Radionuclides and Revised Rad Rule |
| Jul 1, 1976 | Jun 30, 1980 | Gross Alpha, Excl. Radon and U | MR | No | No | — | 15 pCi/L | — | Archived | Jun 30, 1980 | Radionuclides and Revised Rad 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.