Public water system · MT0000586
ActiveTwo Dot Water Users Company
At a glance
Two Dot Water Users Company (PWSID MT0000586) is an active community water system in Wheatland County, Montana. It reports serving 50 people through 25 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, none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
25
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Two Dot Water Users Company compare with other water systems in Wheatland County?
By EPA's size categories, Two Dot Water Users Company is a very small system (500 people or fewer). Wheatland County has 8 active public water systems. Its population served is well below the county average of 337 people per system, and accounts for 1.9% 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 Two Dot Water Users Company 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 Two Dot Water Users Company?
EPA lists Two Dot Water Users Company 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 Two Dot Water Users Company have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2025. The violations listed here began between April 1994 and July 2025. By type: 7 public notice, recordkeeping or other and 5 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (7 of them). EPA lists 10 as resolved and 2 as addressed. 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. Addressed means the violation is not resolved or archived and is covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | 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 |
| 2015-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2014-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2009-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Addressed |
| 2009-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Addressed |
| 2008-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2005-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2003-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1997-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Two Dot Water Users Company: frequently asked questions
Who runs Two Dot Water Users Company?
Two Dot Water Users Company (PWSID MT0000586) is a community water system owned by a local government. It is regulated by the MT state drinking water program.
How many people does Two Dot Water Users Company serve?
Two Dot Water Users Company reports serving 50 people through 25 service connections in Wheatland County, Montana.
Where does Two Dot Water Users Company 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 Two Dot Water Users Company 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 July 2025. 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 Two Dot Water Users Company'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 July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Two Dot Water Users Company's water quality report?
As a community water system, Two Dot Water Users Company 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 |
| Judith Gap Town of | Wheatland | 126 | Community | Groundwater |
| Springwater Colony | Wheatland | 100 | Community | Groundwater |
| Duncan Ranch Colony | Wheatland | 96 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Two Dot Water Users Company, PWSID MT0000586, Montana”, https://aquacensus.com/water-systems/montana/two-dot-water-users-company-mt0000586 (data as of October 1, 2026).