Public water system · MT0004456
ActiveMt Steakhouse
At a glance
Mt Steakhouse (PWSID MT0004456) is an active transient non-community water system in Lewis and Clark County, Montana. It reports serving 133 people through 1 service connection. 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 June 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
133
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Mt Steakhouse compare with other water systems in Lewis and Clark County?
By EPA's size categories, Mt Steakhouse is a very small system (500 people or fewer). Lewis and Clark County has 165 active public water systems. Its population served is well below the county average of 413 people per system, and accounts for 0.2% 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 transient non-community water system reports serving 144 people, so Mt Steakhouse is roughly in line with that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Montana has 1,206 active transient non-community water systems, 51% 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 Mt Steakhouse?
EPA lists Mt Steakhouse 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 Mt Steakhouse have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in June 2024. The violations listed here began between September 2005 and June 2024. By type: 9 monitoring and reporting, 2 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 11 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-06-18 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2023-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2019-11-30 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2019-10-10 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2018-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-09-01 | 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.
Mt Steakhouse: frequently asked questions
Who runs Mt Steakhouse?
Mt Steakhouse (PWSID MT0004456) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Mt Steakhouse serve?
Mt Steakhouse reports serving 133 people through 1 service connection in Lewis and Clark County, Montana.
Where does Mt Steakhouse 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 Mt Steakhouse 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 June 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 Mt Steakhouse'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 June 2024. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find Mt Steakhouse's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mt Steakhouse is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Lewis and Clark County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Helena Water System | Lewis and Clark | 32,091 | Community | Surface water |
| East Helena City of | Lewis and Clark | 2,114 | Community | Groundwater |
| Eastgate Village Sewer and Water | Lewis and Clark | 2,000 | Community | Groundwater |
| Va Medical Center Helena | Lewis and Clark | 1,275 | Community | Purchased surface water |
| Helena Leisure LLC | Lewis and Clark | 1,200 | Community | Groundwater |
| Bobs Valley Service Inc. | Lewis and Clark | 1,032 | Non-transient non-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, “Mt Steakhouse, PWSID MT0004456, Montana”, https://aquacensus.com/water-systems/montana/mt-steakhouse-mt0004456 (data as of October 1, 2026).