MITCHELL, SD · Davison County
MILLBROOK COLONY Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of May 1, 2000. 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 Davison County, SD.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
- SD4602010
- System type
- Community Water System
- Population served
- 108
- Service connections
- 36
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Notification, Public
—Coliform (TCR)
May 15, 1999 – June 14, 1999
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
April 1, 1999 – April 30, 1999
ArchivedMonitoring, Regular
—o-Dichlorobenzene
April 1, 1999 – June 30, 1999
ArchivedMonitoring, Regular
—Styrene
April 1, 1999 – June 30, 1999
ArchivedMonitoring, Regular
—1,1,2-Trichloroethane
April 1, 1999 – June 30, 1999
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
February 1, 1999 – February 28, 1999
ArchivedMonitoring, Regular
—Styrene
January 1, 1999 – March 31, 1999
ArchivedMonitoring, Regular
—Tetrachloroethylene
January 1, 1999 – March 31, 1999
ArchivedMonitoring, Regular
—CHLOROBENZENE
January 1, 1999 – March 31, 1999
ArchivedMonitoring, Regular
—Toluene
January 1, 1999 – March 31, 1999
ArchivedMonitoring, Regular
—1,1-Dichloroethylene
July 1, 1998 – September 30, 1998
ResolvedMonitoring, Regular
—Tetrachloroethylene
July 1, 1998 – September 30, 1998
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
April 1, 1998 – June 30, 1998
ResolvedMonitoring, Regular
—Toluene
April 1, 1998 – June 30, 1998
ResolvedMonitoring, Regular
—Ethylbenzene
April 1, 1998 – June 30, 1998
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 1998 – March 31, 1998
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 1998 – March 31, 1998
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 1998 – March 31, 1998
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 1998 – March 31, 1998
ResolvedNotification, Public
—Coliform (TCR)
June 16, 1996 – July 15, 1996
Archived
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| May 15, 1999 – June 14, 1999 | Notification, Public | Coliform (TCR) | — | Archived |
| April 1, 1999 – April 30, 1999 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| April 1, 1999 – June 30, 1999 | Monitoring, Regular | o-Dichlorobenzene | — | Archived |
| April 1, 1999 – June 30, 1999 | Monitoring, Regular | Styrene | — | Archived |
| April 1, 1999 – June 30, 1999 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Archived |
| February 1, 1999 – February 28, 1999 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| January 1, 1999 – March 31, 1999 | Monitoring, Regular | Styrene | — | Archived |
| January 1, 1999 – March 31, 1999 | Monitoring, Regular | Tetrachloroethylene | — | Archived |
| January 1, 1999 – March 31, 1999 | Monitoring, Regular | CHLOROBENZENE | — | Archived |
| January 1, 1999 – March 31, 1999 | Monitoring, Regular | Toluene | — | Archived |
| July 1, 1998 – September 30, 1998 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| July 1, 1998 – September 30, 1998 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| April 1, 1998 – June 30, 1998 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| April 1, 1998 – June 30, 1998 | Monitoring, Regular | Toluene | — | Resolved |
| April 1, 1998 – June 30, 1998 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 1998 – March 31, 1998 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 1998 – March 31, 1998 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 1998 – March 31, 1998 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 1998 – March 31, 1998 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| June 16, 1996 – July 15, 1996 | Notification, Public | Coliform (TCR) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
Enforcement actions
- August 26, 1999State Public Notification requested43 linked violations
- June 15, 1999State Public Notification issued2 linked violations
- May 11, 1999State Public Notification requested2 linked violations
- April 12, 1999State Public Notification issued3 linked violations
- July 27, 1998State Public Notification requested50 linked violations
- April 8, 1997State Public Notification issued4 linked violations
- July 16, 1996State Public Notification issued34 linked violations
Last known contact on file (system is inactive)
Not on record
605-996-6639
MITCHELL, SD 573017828