SPEARFISH VALLEY MOBILE ESTATES
South Dakota — Community Water System — PWSID: SD4600625
System Information
| PWSID | SD4600625 |
| System Name | SPEARFISH VALLEY MOBILE ESTATES |
| 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 2, 1981 |
| Last Reported | Dec 9, 2025 |
Location & Contact
| State | South Dakota |
| City | SPEARFISH |
| ZIP Code | 57783 |
| Address | PO BOX 516 |
| Organization | SPEARFISH VALLEY MOBILE ESTATES |
| Phone | — |
Population & Service
| Population Served | 163 |
| Service Connections | 65 |
Drinking Water Violations (12)
This water system has 12 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, 2024 | Feb 29, 2024 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Feb 29, 2024 | Revised Total Coliform Rule |
| Feb 1, 2024 | Feb 29, 2024 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Feb 29, 2024 | Revised Total Coliform Rule |
| Oct 1, 2021 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | Feb 17, 2022 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2021 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | Feb 17, 2022 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Dec 12, 1998 | Jan 11, 1999 | Coliform (TCR) | Other | No | No | — | 5% of samples | — | Archived | Jan 11, 1999 | Total Coliform Rule |
| Dec 1, 1998 | Dec 31, 1998 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 1998 | Total Coliform Rule |
| Dec 1, 1998 | Dec 31, 1998 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 1998 | Total Coliform Rule |
| Nov 1, 1998 | Nov 30, 1998 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 1998 | Total Coliform Rule |
| Nov 1, 1998 | Nov 30, 1998 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Nov 30, 1998 | Total Coliform Rule |
| Sep 1, 1998 | Sep 30, 1998 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1998 | Total Coliform Rule |
| Jun 1, 1976 | May 31, 1980 | Combined Radium (-226 and -228) | MR | No | No | — | 5 pCi/L | — | Archived | May 31, 1980 | Radionuclides and Revised Rad Rule |
| Jun 1, 1976 | May 31, 1980 | Gross Alpha, Excl. Radon and U | MR | No | No | — | 15 pCi/L | — | Archived | May 31, 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.