Public water system · MT0004831
ActiveCobblestone Court
At a glance
Cobblestone Court (PWSID MT0004831) is an active community water system in Cascade County, Montana. It reports serving 50 people through 19 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
19
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Cobblestone Court compare with other water systems in Cascade County?
By EPA's size categories, Cobblestone Court 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 less than 0.1% 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 Cobblestone Court 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 212 Montana systems (8.9%) list purchased surface water as their primary source.
Who owns and regulates Cobblestone Court?
EPA lists Cobblestone Court 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. 73 of the 98 active systems in Cascade County (74%) are also privately owned.
Does Cobblestone Court have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2011. By type: 1 monitoring and reporting. The contaminant or rule involved is Asbestos. EPA lists 1 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Asbestoscode 1094 | No | Archived |
The one violation in EPA's records.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.
Cobblestone Court: frequently asked questions
Who runs Cobblestone Court?
Cobblestone Court (PWSID MT0004831) is a community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Cobblestone Court serve?
Cobblestone Court reports serving 50 people through 19 service connections in Cascade County, Montana.
Where does Cobblestone Court get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Cobblestone Court have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2011. 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 Cobblestone Court'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. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Cobblestone Court's water quality report?
As a community water system, Cobblestone Court 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, “Cobblestone Court, PWSID MT0004831, Montana”, https://aquacensus.com/water-systems/montana/cobblestone-court-mt0004831 (data as of October 1, 2026).