AMHERST WATER COMPANY
South Dakota — Community Water System — PWSID: SD4600030
System Information
| PWSID | SD4600030 |
| System Name | AMHERST WATER COMPANY |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| 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 | BRITTON |
| ZIP Code | 57430 |
| Address | PO BOX 49 |
| Organization | AMHERST WATER COMPANY |
| Phone | 6054485417 |
Population & Service
| Population Served | 40 |
| Service Connections | 16 |
Drinking Water Violations (24)
This water system has 24 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, 2014 | Dec 31, 2014 | Chloramine | MRDL | Yes | No | 4.1 MG/L | 4.0 mg/L | — | Resolved | Dec 31, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2014 | Dec 31, 2014 | Chloramine | MRDL | Yes | No | 4.1 MG/L | 4.0 mg/L | — | Resolved | Dec 31, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2014 | Dec 31, 2014 | Chloramine | MRDL | Yes | No | 4.1 MG/L | 4.0 mg/L | — | Resolved | Dec 31, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2004 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jan 3, 2005 | Consumer Confidence Rule |
| Jul 1, 2004 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jan 3, 2005 | Consumer Confidence Rule |
| Oct 1, 2001 | Jun 11, 2002 | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 11, 2002 | Consumer Confidence Rule |
| Oct 1, 2001 | Jun 11, 2002 | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 11, 2002 | Consumer Confidence Rule |
| Oct 1, 2001 | Jun 11, 2002 | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 11, 2002 | Consumer Confidence Rule |
| Jul 1, 2000 | Jul 24, 2000 | Consumer Confidence Rule | Other | No | Yes | — | — | — | Resolved | Jul 24, 2000 | Consumer Confidence Rule |
| Jul 1, 2000 | Jul 24, 2000 | Consumer Confidence Rule | Other | No | Yes | — | — | — | Resolved | Jul 24, 2000 | Consumer Confidence Rule |
| Sep 1, 1994 | Sep 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1994 | Total Coliform Rule |
| Sep 1, 1994 | Sep 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1994 | Total Coliform Rule |
| Jul 1, 1994 | Jan 10, 1995 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 1995 | Lead and Copper Rule |
| Jul 1, 1994 | Jan 10, 1995 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 1995 | Lead and Copper Rule |
| Jan 1, 1994 | Jan 10, 1995 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 1995 | Lead and Copper Rule |
| Jan 1, 1994 | Jan 10, 1995 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 1995 | Lead and Copper Rule |
| Sep 1, 1993 | Sep 30, 1993 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1993 | Total Coliform Rule |
| Sep 28, 1988 | Sep 27, 1991 | Fluoride | MCL | Yes | No | 6.6 | 4.0 mg/L | 4 | Resolved | Aug 10, 1990 | Inorganic Chemicals |
| Sep 28, 1988 | Sep 27, 1991 | Fluoride | MCL | Yes | No | 6.6 | 4.0 mg/L | 4 | Resolved | Aug 10, 1990 | Inorganic Chemicals |
| Sep 28, 1988 | Sep 27, 1991 | Fluoride | MCL | Yes | No | 6.6 | 4.0 mg/L | 4 | Resolved | Aug 10, 1990 | Inorganic Chemicals |
| Sep 28, 1988 | Sep 27, 1991 | Fluoride | MCL | Yes | No | 6.6 | 4.0 mg/L | 4 | Resolved | Aug 10, 1990 | Inorganic Chemicals |
| Sep 28, 1988 | Sep 27, 1991 | Fluoride | MCL | Yes | No | 6.6 | 4.0 mg/L | 4 | Resolved | Aug 10, 1990 | Inorganic Chemicals |
| 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.