BRITTON, SD · Marshall County
WESTWOOD COLONY Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of December 1, 2018. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Marshall County, SD.
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)
- SD4602353
- System type
- Community Water System
- Population served
- 110
- Service connections
- 19
- Ownership
- privately owned
- Water source
- groundwater (wells)
WESTWOOD COLONY is one of 583 community water systems in South Dakota in the 500 or fewer people size category, formerly serving 110 people from groundwater.
EPA's federal records list this system as inactive in 2018; the record below is historical.
As of August 1, 2026, its federal record holds 2 entries in 2017, all of which EPA lists as closed. Nothing has been added since 2017.
None of the 2 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves inorganic chemicals.
Violation history
Maximum Contaminant Level Violation, Average
Health-basedArsenic
April 1, 2017 – June 30, 2017
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
January 1, 2017 – March 31, 2017
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2017 – June 30, 2017 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| January 1, 2017 – March 31, 2017 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
WESTWOOD COLONY
6054485079
BRITTON, SD 57430