Public Water Partners

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 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)
MT0000105
System type
Community Water System
Population served
20
Service connections
13
Ownership
privately owned
Water source
groundwater (wells)

RIVERSIDE TR CT BIG SKY is one of 1,084 community water systems in Montana in the 500 or fewer people size category, formerly serving 20 people from groundwater.

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 38 entries between 2002 and 2003, all of which EPA lists as closed. Nothing has been added since 2003.

All 38 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 synthetic organic chemicals, inorganic chemicals, and the Lead and Copper Rule.

Violation history

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    October 1, 2003 – August 5, 2003

    Resolved

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    October 1, 2003 – August 5, 2003

    Resolved

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    June 2, 2003 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfoxide

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfone

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Aldicarb

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2002 – August 5, 2003

    Resolved

  • Monitoring, Regular

    —

    Arsenic

    January 1, 2002 – August 5, 2003

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Last known contact on file (system is inactive)

Not on record

406-995-4981

BIG SKY, MT 59716