Madison County, Montana Water Systems

Madison County, Montana

15 community water systems on record — 12 active, 3 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

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.

Community water systems in Madison County, Montana

System name	City	Population served	Status
ANDESITE RIDGE WATER SYSTEM	BIG SKY	450	Active
BIG SKY COUNTY WATER AND SEWER DIST 363	BIG SKY	4,132	Active
ENCAMPMENT TRAIL	BIG SKY	100	Active
ENNIS TOWN OF	ENNIS	1,400	Active
ENNIS HOTSPRINGS	ENNIS	25	Inactive
JEFFERS PUMP ASSOCIATION	ENNIS	19	Inactive
LONE VIEW RIDGE WATER SYSTEM	BIG SKY	37	Active
LOWER PIONEER MOUNTAIN WATER SYSTEM	BIG SKY	350	Active
MONTANA CHILDRENS CENTER	TWIN BRIDGES	125	Inactive
MT MOONLIGHT BASIN	BELGRADE	355	Active
SHERIDAN TOWN OF	SHERIDAN	632	Active
SPANISH PEAKS MOUNTAIN CLUB	BIG SKY	40	Active
TWIN BRIDGES TOWN OF	TWIN BRIDGES	424	Active
VALLEY GARDEN GOLF VILLAGE HOA	ENNIS	195	Active
VIRGINIA CITY WATER DEPT	VIRGINIA CITY	1,500	Active