Public water system · MT0000258
ActiveJudith Gap Town of
At a glance
Town of Judith Gap (PWSID MT0000258) is an active community water system in Wheatland County, Montana. It reports serving 126 people through 79 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
126
Service connections
79
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Town of Judith Gap compare with other water systems in Wheatland County?
By EPA's size categories, Town of Judith Gap is a very small system (500 people or fewer). Wheatland County has 8 active public water systems, and Town of Judith Gap is the 4th-largest of them by population served. Its population served is about 63% below the county average of 337 people per system, and accounts for 4.7% of the 2,697 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 Judith Gap 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 Town of Judith Gap?
EPA lists Town of Judith Gap 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. 3 of the 8 active systems in Wheatland County (38%) are also owned by a local government.
Does Town of Judith Gap 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 2021. The violations listed here began between January 1999 and July 2021. By type: 8 monitoring and reporting, 2 public notice, recordkeeping or other, 1 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (4 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 |
|---|---|---|---|---|
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2017-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2017-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2014-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2011-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 1999-10-19 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1999-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Antimonycode 1074 | 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 Judith Gap: frequently asked questions
Who runs Town of Judith Gap?
Town of Judith Gap (PWSID MT0000258) 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 Judith Gap serve?
Town of Judith Gap reports serving 126 people through 79 service connections in Wheatland County, Montana.
Where does Town of Judith Gap 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 Town of Judith Gap 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 2021. 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 Judith Gap'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 2021. 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 Judith Gap's water quality report?
As a community water system, Town of Judith Gap 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 Wheatland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Cmrwa Musselshell Judith Rural Water Sys | Wheatland | 1,100 | Community | Groundwater |
| Harlowton City of | Wheatland | 1,050 | Community | Purchased groundwater |
| Martinsdale Colony | Wheatland | 150 | Community | Groundwater |
| Springwater Colony | Wheatland | 100 | Community | Groundwater |
| Duncan Ranch Colony | Wheatland | 96 | Community | Groundwater |
| Two Dot Water Users Company | Wheatland | 50 | Community | Groundwater |
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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, “Judith Gap Town of, PWSID MT0000258, Montana”, https://aquacensus.com/water-systems/montana/judith-gap-town-of-mt0000258 (data as of October 1, 2026).