Skip to content
AquaCensus

Public water system · MT0004572

Active

Cobblestone Subdivision

Community water system in Gallatin County, Montana, drawing primarily on purchased groundwater.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

150

Service connections

90

Primary source

GWP

Purchased groundwater

System type

CWS

Community water system

System record

PWSIDMT0004572
System typeCommunity water system
Activity statusActive
Population served150
Service connections90
Primary water sourcePurchased groundwater
Owner typePrivate
Primacy agencyMT state drinking water program
City servedBozeman
StateMontana
ZIP—
CountyGallatin County

Violations & enforcement

BeganViolationContaminant or ruleHealth-basedStatus
2019-08-06Monitoring and reportingMonitoring, Source Water (GWR) · code 34E. colicode 3014NoResolved
2017-10-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2017-07-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2007-11-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2007-07-01Monitoring and reportingWater Quality Parameter M/R · code 53Lead and Copper Rulecode 5000NoResolved

All 5 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Cobblestone Subdivision: frequently asked questions

Is Cobblestone Subdivision's water safe to drink?

Cobblestone Subdivision is an active community water system regulated under the Safe Drinking Water Act, overseen by the MT state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.

Who runs Cobblestone Subdivision?

Cobblestone Subdivision (PWSID MT0004572) is a private-owned community water system, regulated by the MT state drinking water program.

How many people does Cobblestone Subdivision serve?

Cobblestone Subdivision reports serving 150 people through 90 service connections in Gallatin County, Montana.

Where does Cobblestone Subdivision get its water?

EPA SDWIS lists this system's primary water source as purchased groundwater.

Other water systems in Gallatin County

Water systemCountyPopulation servedTypeSource
Bozeman City ofGallatin56,000CommunitySurface water
Montana State University BozemanGallatin19,200Non-transient non-communityPurchased surface water
Belgrade City ofGallatin10,460CommunityGroundwater
West Yellowstone Town ofGallatin9,899CommunityGroundwater
North Star Zoot WaterGallatin4,323CommunityGroundwater
River Rock County Water and Sewer DistGallatin4,200CommunityGroundwater

Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.