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Public water system · MT0003043

Active

Mobile City Home Park No 2

At a glance

Mobile City Home Park No 2 (PWSID MT0003043) is an active community water system in Lewis and Clark County, Montana. It reports serving 300 people through 153 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2024.

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

Population served

300

Service connections

153

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDMT0003043
System typeCommunity water system
Activity statusActive
Population served300
Service connections153
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyMT state drinking water program
City servedHelena
StateMontana
ZIP—
CountyLewis and Clark County

How does Mobile City Home Park No 2 compare with other water systems in Lewis and Clark County?

By EPA's size categories, Mobile City Home Park No 2 is a very small system (500 people or fewer). Lewis and Clark County has 165 active public water systems. Its population served is about 27% below the county average of 413 people per system, and accounts for 0.4% of the 68,071 people reported by systems filed under the county. Across Montana, the 2,378 active systems average 489 people each. Nationally, the average active community water system reports serving 6,703 people, so Mobile City Home Park No 2 is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Montana has 853 active community water systems, 36% of the state's 2,378 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,994 Montana systems (84%) list groundwater as their primary source.

Who owns and regulates Mobile City Home Park No 2?

EPA lists Mobile City Home Park No 2 as privately owned. The MT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 134 of the 165 active systems in Lewis and Clark County (81%) are also privately owned.

Does Mobile City Home Park No 2 have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2024. The violations listed here began between January 2010 and December 2024. By type: 9 monitoring and reporting, 2 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

BeganViolationContaminant or ruleHealth-basedStatus
2024-12-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2020-12-30Monitoring and reportingMonitoring, Source Water (GWR) · code 34E. colicode 3014NoResolved
2020-10-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2020-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2010-01-01Monitoring and reportingMonitoring, Regular · code 03Ethylbenzenecode 2992NoResolved
2010-01-01Monitoring and reportingMonitoring, Regular · code 03o-Dichlorobenzenecode 2968NoResolved
2010-01-01Monitoring and reportingMonitoring, Regular · code 03Carbon tetrachloridecode 2982NoResolved
2010-01-01Monitoring and reportingMonitoring, Regular · code 03Vinyl chloridecode 2976NoResolved
2010-01-01Monitoring and reportingMonitoring, Regular · code 031,1,1-Trichloroethanecode 2981NoResolved
2010-01-01Monitoring and reportingMonitoring, Regular · code 03Styrenecode 2996NoResolved
2010-01-01Monitoring and reportingMonitoring, Regular · code 03trans-1,2-Dichloroethylenecode 2979NoResolved
2010-01-01Monitoring and reportingMonitoring, Regular · code 03Xylenes, Totalcode 2955NoResolved

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.

Mobile City Home Park No 2: frequently asked questions

Who runs Mobile City Home Park No 2?

Mobile City Home Park No 2 (PWSID MT0003043) is a community water system privately owned. It is regulated by the MT state drinking water program.

How many people does Mobile City Home Park No 2 serve?

Mobile City Home Park No 2 reports serving 300 people through 153 service connections in Lewis and Clark County, Montana.

Where does Mobile City Home Park No 2 get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Mobile City Home Park No 2 have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2024. 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.

Is Mobile City Home Park No 2's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.

Where can I find Mobile City Home Park No 2's water quality report?

As a community water system, Mobile City Home Park No 2 must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Lewis and Clark County

Water systemCountyPopulation servedTypeSource
Helena Water SystemLewis and Clark32,091CommunitySurface water
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

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Mobile City Home Park No 2, PWSID MT0003043, Montana”, https://aquacensus.com/water-systems/montana/mobile-city-home-park-no-2-mt0003043 (data as of October 1, 2026).