BIG SKY, MT · Gallatin County
RIVERSIDE TR CT BIG SKY Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of August 5, 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 Gallatin County, MT.
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 Montana’s official records. Always confirm current status with Montana before making decisions based on this information.
System facts
- System ID (PWSID)
- MT0000105
- System type
- Community Water System
- Population served
- 20
- Service connections
- 13
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2003 – August 5, 2003
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2003 – August 5, 2003
ResolvedMonitoring, Regular
—Barium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Cadmium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Chromium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Fluoride
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Mercury
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Selenium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Endrin
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Dalapon
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Aldicarb sulfoxide
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Aldicarb sulfone
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Aldicarb
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Atrazine
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—LASSO
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—2,4-D
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Chlordane
January 1, 2002 – August 5, 2003
ResolvedMonitoring, Regular
—Arsenic
January 1, 2002 – August 5, 2003
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2003 – August 5, 2003 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| October 1, 2003 – August 5, 2003 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Aldicarb sulfoxide | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Aldicarb sulfone | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Aldicarb | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2002 – August 5, 2003 | Monitoring, Regular | Arsenic | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- January 12, 2005State Compliance achieved32 linked violations
- January 4, 2005State Violation/Reminder Notice1 linked violation
- January 4, 2005State Public Notification requested1 linked violation
- September 20, 2004State Compliance achieved28 linked violations
- January 21, 2004State Violation/Reminder Notice1 linked violation
- January 21, 2004State Public Notification requested1 linked violation
- April 30, 2001State Compliance achieved1 linked violation
Last known contact on file (system is inactive)
Not on record
406-995-4981
BIG SKY, MT 59716