BRITTON, SD · Marshall County
AMHERST WATER COMPANY Water System
Consumer Confidence Report status
AMHERST WATER COMPANY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for AMHERST WATER COMPANY.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.
System facts
- System ID (PWSID)
- SD4600030
- System type
- Community Water System
- Population served
- 40
- Service connections
- 16
- Ownership
- privately owned
- Water source
- groundwater (wells)
AMHERST WATER COMPANY is one of 583 community water systems in South Dakota in the 500 or fewer people size category, serving 40 people from groundwater.
As of August 1, 2026, its federal record holds 4 entries between 1976 and 2014, all of which EPA lists as closed. Nothing has been added since 2014.
Of the 4, 2 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Radionuclides and Revised Rad Rule, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and inorganic chemicals.
Violation history
Non-Acute MRDL
Health-basedChloramine
October 1, 2014 – December 31, 2014
ResolvedMaximum Contaminant Level Violation, Average
Health-basedFluoride
September 28, 1988 – August 10, 1990
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 1976 – June 30, 1980
ArchivedMonitoring, Regular
—Combined Radium (-226 and -228)
July 1, 1976 – June 30, 1980
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2014 – December 31, 2014 | Non-Acute MRDL | Chloramine | Health-based | Resolved |
| September 28, 1988 – August 10, 1990 | Maximum Contaminant Level Violation, Average | Fluoride | Health-based | Resolved |
| July 1, 1976 – June 30, 1980 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| July 1, 1976 – June 30, 1980 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is AMHERST WATER COMPANY required to publish a Consumer Confidence Report?
- Yes. AMHERST WATER COMPANY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is AMHERST WATER COMPANY’s next Consumer Confidence Report due?
- AMHERST WATER COMPANY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does AMHERST WATER COMPANY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for AMHERST WATER COMPANY.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
AMHERST WATER COMPANY
6054485417
BRITTON, SD 57430