Public water system · MT0000298

Active

Neihart Town of

At a glance

Town of Neihart (PWSID MT0000298) is an active community water system in Cascade County, Montana. It reports serving 229 people through 110 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in July 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

229

Service connections

110

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDMT0000298

System typeCommunity water system

Activity statusActive

Population served229

Service connections110

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyMT state drinking water program

City servedNeihart

StateMontana

ZIP—

CountyCascade County

How does Town of Neihart compare with other water systems in Cascade County?

By EPA's size categories, Town of Neihart is a very small system (500 people or fewer). Cascade County has 98 active public water systems. Its population served is well below the county average of 985 people per system, and accounts for 0.2% of the 96,513 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 Town of Neihart 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 60 Montana systems (2.5%) list surface water as their primary source.

Who owns and regulates Town of Neihart?

EPA lists Town of Neihart as owned by a local government. 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. 14 of the 98 active systems in Cascade County (14%) are also owned by a local government.

Does Town of Neihart have drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in July 2024. The violations listed here began between September 2006 and July 2024. By type: 5 required treatment not met, 3 monitoring and reporting, 2 monitoring and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment 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.

Began	Violation	Contaminant or rule	Health-based	Status
2024-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-10-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2020-10-01	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Resolved
2020-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2018-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2010-01-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2009-04-01	Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2009-04-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2008-05-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2006-10-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2006-10-01	Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2006-09-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved

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.

Town of Neihart: frequently asked questions

Who runs Town of Neihart?

Town of Neihart (PWSID MT0000298) is a community water system owned by a local government. It is regulated by the MT state drinking water program.

How many people does Town of Neihart serve?

Town of Neihart reports serving 229 people through 110 service connections in Cascade County, Montana.

Where does Town of Neihart get its water?

EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.

Does Town of Neihart have any drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in July 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 Town of Neihart'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, 5 are health-based, and the most recent began in July 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 Town of Neihart's water quality report?

As a community water system, Town of Neihart 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 Cascade County

Water system	County	Population served	Type	Source
Great Falls City of	Cascade	60,000	Community	Surface water
Malmstrom Air Force Base	Cascade	8,850	Community	Purchased surface water
Source Giant Springs Inc.	Cascade	3,007	Non-transient non-community	Groundwater
Montana Expo Park Cascade County	Cascade	2,510	Transient non-community	Purchased surface water
Sun Prairie Village County	Cascade	1,800	Community	Groundwater
University of Providence	Cascade	1,472	Non-transient non-community	Purchased surface water

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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, “Neihart Town of, PWSID MT0000298, Montana”, https://aquacensus.com/water-systems/montana/neihart-town-of-mt0000298 (data as of October 1, 2026).