BILLINGS, MT · Yellowstone County
SOUTH HILLS WATER AND SEWER DIST Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of July 11, 2003. 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 Yellowstone County, MT.
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 Montana’s official records. Always confirm current status with Montana before making decisions based on this information.
System facts
- System ID (PWSID)
- MT0003110
- System type
- Community Water System
- Population served
- 350
- Service connections
- 161
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
SOUTH HILLS WATER AND SEWER DIST is one of 1,084 community water systems in Montana in the 500 or fewer people size category, formerly serving 350 people from surface water.
EPA's federal records list this system as inactive in 2003; the record below is historical.
As of August 1, 2026, its federal record holds 12 entries between 1996 and 2003, all of which EPA lists as closed. Nothing has been added since 2003.
All 12 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 volatile organic chemicals, inorganic chemicals, and the Total Coliform Rules.
Violation history
Monitoring, Regular
—Benzene
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—Arsenic
January 1, 2002 – December 31, 2002
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
February 1, 1996 – February 29, 1996
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 |
|---|---|---|---|---|
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2002 – December 31, 2002 | Monitoring, Regular | Arsenic | — | Resolved |
| February 1, 1996 – February 29, 1996 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- September 20, 2004State Compliance achieved1 linked violation
- February 17, 2004State Compliance achieved22 linked violations
- February 13, 2004State Compliance achieved1 linked violation
- November 3, 2003State Compliance achieved1 linked violation
Last known contact on file (system is inactive)
Not on record
406-248-1215
BILLINGS, MT 59104