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Public water system · MT0000413

Active

Ayers Hutterite Colony

At a glance

Ayers Hutterite Colony (PWSID MT0000413) is an active community water system in Fergus County, Montana. It reports serving 58 people through 19 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, one is health-based, and the most recent began in July 2020.

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

Population served

58

Service connections

19

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDMT0000413
System typeCommunity water system
Activity statusActive
Population served58
Service connections19
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyMT state drinking water program
City servedGrass Range
StateMontana
ZIP—
CountyFergus County

How does Ayers Hutterite Colony compare with other water systems in Fergus County?

By EPA's size categories, Ayers Hutterite Colony is a very small system (500 people or fewer). Fergus County has 21 active public water systems. Its population served is well below the county average of 533 people per system, and accounts for 0.5% of the 11,187 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 Ayers Hutterite Colony 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 Ayers Hutterite Colony?

EPA lists Ayers Hutterite Colony 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. 15 of the 21 active systems in Fergus County (71%) are also privately owned.

Does Ayers Hutterite Colony have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2020. The violations listed here began between January 1998 and July 2020. By type: 6 monitoring and reporting, 5 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Consumer Confidence Rule (5 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
2020-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Nitrate-Nitritecode 1038NoResolved
2018-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2015-10-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2015-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2013-10-01Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72Consumer Confidence Rulecode 7000NoResolved
2012-02-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2010-10-05Required treatment not metFailure To Address Deficiency · code 45Groundwater Rulecode 0700YesResolved
2010-10-01Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72Consumer Confidence Rulecode 7000NoResolved
2007-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2000-01-01Monitoring and reportingMonitoring, Regular · code 03Nitrate-Nitritecode 1038NoResolved
1998-01-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved

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.

Ayers Hutterite Colony: frequently asked questions

Who runs Ayers Hutterite Colony?

Ayers Hutterite Colony (PWSID MT0000413) is a community water system privately owned. It is regulated by the MT state drinking water program.

How many people does Ayers Hutterite Colony serve?

Ayers Hutterite Colony reports serving 58 people through 19 service connections in Fergus County, Montana.

Where does Ayers Hutterite Colony 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 Ayers Hutterite Colony have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2020. 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 Ayers Hutterite Colony'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, one is health-based, and the most recent began in July 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.

Where can I find Ayers Hutterite Colony's water quality report?

As a community water system, Ayers Hutterite Colony 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 Fergus County

Water systemCountyPopulation servedTypeSource
Lewistown City ofFergus5,923CommunityGroundwater
Lehrkinds Big Spring WaterFergus2,575Non-transient non-communityPurchased groundwater
Eddies CornerFergus503Transient non-communityGroundwater
K-M Scout Ranch Water SystemFergus325Transient non-communityGroundwater
Mountain Acres Mb Hm PkFergus320CommunityPurchased groundwater
Winifred Town ofFergus274CommunityGroundwater

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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, “Ayers Hutterite Colony, PWSID MT0000413, Montana”, https://aquacensus.com/water-systems/montana/ayers-hutterite-colony-mt0000413 (data as of October 1, 2026).