Public water system · MT0000155
ActiveBillings Heights Co Water Dist of
At a glance
Billings Heights Co Water Dist of (PWSID MT0000155) is an active community water system in Yellowstone County, Montana. It reports serving 12,000 people through 6,100 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
12,000
Service connections
6,100
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Billings Heights Co Water Dist of compare with other water systems in Yellowstone County?
By EPA's size categories, Billings Heights Co Water Dist of is a large system (10,001 to 100,000 people). Yellowstone County has 119 active public water systems, and Billings Heights Co Water Dist of is the 2nd-largest of them by population served. Its population served is about 8.4 times the county average of 1,422 people per system, and accounts for 7.1% of the 169,240 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 Billings Heights Co Water Dist of is about 79% above 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 Billings Heights Co Water Dist of?
EPA lists Billings Heights Co Water Dist of 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. 15 of the 119 active systems in Yellowstone County (13%) are also owned by a local government.
Does Billings Heights Co Water Dist of have drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2026. The violations listed here began between July 1998 and January 2026. By type: 6 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 5 as resolved and 2 as archived. 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. 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 |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2024-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2005-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 7 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.
Billings Heights Co Water Dist of: frequently asked questions
Who runs Billings Heights Co Water Dist of?
Billings Heights Co Water Dist of (PWSID MT0000155) is a community water system owned by a local government. It is regulated by the MT state drinking water program.
How many people does Billings Heights Co Water Dist of serve?
Billings Heights Co Water Dist of reports serving 12,000 people through 6,100 service connections in Yellowstone County, Montana.
Where does Billings Heights Co Water Dist of 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 Billings Heights Co Water Dist of have any drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in January 2026. 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 Billings Heights Co Water Dist of'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 7 violations for this system; none is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Billings Heights Co Water Dist of's water quality report?
As a community water system, Billings Heights Co Water Dist of 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 Yellowstone County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Billings City of | Yellowstone | 114,000 | Community | Surface water |
| Laurel Municipal Water System | Yellowstone | 6,339 | Community | Surface water |
| Lockwood Water and Sewer District | Yellowstone | 5,900 | Community | Surface water |
| Rocky Mountain College | Yellowstone | 5,700 | Non-transient non-community | Purchased surface water |
| Montana State University Billings | Yellowstone | 2,999 | Non-transient non-community | Purchased surface water |
| Pioneer Water Service | Yellowstone | 900 | 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, “Billings Heights Co Water Dist of, PWSID MT0000155, Montana”, https://aquacensus.com/water-systems/montana/billings-heights-co-water-dist-of-mt0000155 (data as of October 1, 2026).