Public water system · MT0004446
ActiveCircle H Water Inc.
At a glance
Circle H Water Inc. (PWSID MT0004446) is an active community water system in Missoula County, Montana. It reports serving 215 people through 86 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
215
Service connections
86
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Circle H Water Inc. compare with other water systems in Missoula County?
By EPA's size categories, Circle H Water Inc. is a very small system (500 people or fewer). Missoula County has 244 active public water systems. Its population served is about 63% below the county average of 576 people per system, and accounts for 0.2% of the 140,505 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 Circle H Water Inc. 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 Circle H Water Inc.?
EPA lists Circle H Water Inc. 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. 201 of the 244 active systems in Missoula County (82%) are also privately owned.
Does Circle H Water Inc. have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2020. The violations listed here began between September 2008 and October 2020. By type: 2 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule and Total coliform bacteria (TCR). EPA lists 2 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 |
|---|---|---|---|---|
| 2020-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2008-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 2 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.
Circle H Water Inc.: frequently asked questions
Who runs Circle H Water Inc.?
Circle H Water Inc. (PWSID MT0004446) is a community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Circle H Water Inc. serve?
Circle H Water Inc. reports serving 215 people through 86 service connections in Missoula County, Montana.
Where does Circle H Water Inc. 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 Circle H Water Inc. have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2020. 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 Circle H Water Inc.'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 2 violations for this system; none is health-based, and the most recent began in October 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Circle H Water Inc.'s water quality report?
As a community water system, Circle H Water Inc. 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 Missoula County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Missoula Water | Missoula | 68,200 | Community | Groundwater |
| University of Montana | Missoula | 15,000 | Non-transient non-community | Purchased groundwater |
| Lolo Water and Sewer Dist | Missoula | 3,315 | Community | Groundwater |
| Town Pump Bonner 1 | Missoula | 2,460 | Non-transient non-community | Groundwater |
| Clearwater Junction Rest Area | Missoula | 2,002 | Transient non-community | Groundwater |
| Seeley Lake Water District | Missoula | 1,575 | Community | 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, “Circle H Water Inc., PWSID MT0004446, Montana”, https://aquacensus.com/water-systems/montana/circle-h-water-inc-mt0004446 (data as of October 1, 2026).