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Public water system · MT0000241

Active

Helena Water System

Community water system in Lewis and Clark County, Montana, drawing primarily on surface water.

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

Population served

32,091

Service connections

11,684

Primary source

SW

Surface water

System type

CWS

Community water system

System record

PWSIDMT0000241
System typeCommunity water system
Activity statusActive
Population served32,091
Service connections11,684
Primary water sourceSurface water
Owner typeLocal government
Primacy agencyMT state drinking water program
City servedHelena
StateMontana
ZIP—
CountyLewis and Clark County

Violations & enforcement

BeganViolationContaminant or ruleHealth-basedStatus
2023-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Haloacetic acids (HAA5)code 2456YesResolved
2022-10-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Haloacetic acids (HAA5)code 2456YesResolved
2022-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02Haloacetic acids (HAA5)code 2456YesResolved
2011-10-01Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72Consumer Confidence Rulecode 7000NoResolved
2011-01-01Monitoring and reportingMonitoring, Regular · code 03Asbestoscode 1094NoResolved
2008-10-01Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36Surface Water Treatment Rulecode 0200NoResolved
2008-09-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
2008-09-01Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26Total coliform bacteria (TCR)code 3100NoResolved
2008-05-01Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36Surface Water Treatment Rulecode 0200NoResolved
2008-05-01Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36Surface Water Treatment Rulecode 0200NoResolved
2008-01-01Monitoring and reportingMonitoring, Regular · code 03Combined Radium (-226 and -228)code 4010NoArchived
2007-10-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved

The 12 most recent 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.

Helena Water System: frequently asked questions

Is Helena Water System's water safe to drink?

Helena Water System 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, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.

Who runs Helena Water System?

Helena Water System (PWSID MT0000241) is a local government-owned community water system, regulated by the MT state drinking water program.

How many people does Helena Water System serve?

Helena Water System reports serving 32,091 people through 11,684 service connections in Lewis and Clark County, Montana.

Where does Helena Water System get its water?

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

Other water systems in Lewis and Clark County

Water systemCountyPopulation servedTypeSource
East Helena City ofLewis and Clark2,114CommunityGroundwater
Eastgate Village Sewer and WaterLewis and Clark2,000CommunityGroundwater
Va Medical Center HelenaLewis and Clark1,275CommunityPurchased surface water
Helena Leisure LLCLewis and Clark1,200CommunityGroundwater
Bobs Valley Service Inc.Lewis and Clark1,032Non-transient non-communityGroundwater
Daves Express LubeLewis and Clark966Transient non-communityGroundwater

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