CUSTER DOC
South Dakota — Community Water System — PWSID: SD4600384
System Information
| PWSID | SD4600384 |
| System Name | CUSTER DOC |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Inactive |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Dec 9, 2025 |
Location & Contact
| State | South Dakota |
| City | CUSTER |
| ZIP Code | 57730 |
| Address | 12279 BRADY DRIVE |
| Organization | CUSTER DOC |
| Phone | 6056733003 |
Population & Service
| Population Served | 25 |
| Service Connections | 30 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2018 | Aug 31, 2018 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Aug 31, 2018 | Revised Total Coliform Rule |
| Aug 1, 2018 | Aug 31, 2018 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Aug 31, 2018 | Revised Total Coliform Rule |
| Aug 1, 2018 | Aug 31, 2018 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Aug 31, 2018 | Revised Total Coliform Rule |
| Jul 1, 2018 | Sep 30, 2018 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2018 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2018 | Sep 30, 2018 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2018 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2018 | Sep 30, 2018 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2018 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2008 | Jun 30, 2008 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2008 | Jun 30, 2008 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2008 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 1, 2007 | Consumer Confidence 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 |
| 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 |
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.