Public water system · MT0000628
ActiveRae Water and Sewer Dist 313
At a glance
Rae Water and Sewer Dist 313 (PWSID MT0000628) is an active community water system in Gallatin County, Montana. It reports serving 2,325 people through 950 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, 2 are health-based, and the most recent began in October 2023.
This page covers its drinking water system only; sewer and wastewater service are not part of EPA's drinking water records.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,325
Service connections
950
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Rae Water and Sewer Dist 313 compare with other water systems in Gallatin County?
By EPA's size categories, Rae Water and Sewer Dist 313 is a small system (501 to 3,300 people). Gallatin County has 207 active public water systems. Its population served is about 3.3 times the county average of 713 people per system, and accounts for 1.6% of the 147,534 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 Rae Water and Sewer Dist 313 is about 65% 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 Rae Water and Sewer Dist 313?
EPA lists Rae Water and Sewer Dist 313 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. 12 of the 207 active systems in Gallatin County (5.8%) are also owned by a local government.
Does Rae Water and Sewer Dist 313 have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2023. The violations listed here began between January 2012 and October 2023. By type: 9 monitoring and reporting, 2 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is E. coli (5 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2023-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2014-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-09-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2012-09-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2012-09-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2012-09-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2012-09-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | 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.
Rae Water and Sewer Dist 313: frequently asked questions
Who runs Rae Water and Sewer Dist 313?
Rae Water and Sewer Dist 313 (PWSID MT0000628) is a community water system owned by a local government. It is regulated by the MT state drinking water program.
How many people does Rae Water and Sewer Dist 313 serve?
Rae Water and Sewer Dist 313 reports serving 2,325 people through 950 service connections in Gallatin County, Montana.
Where does Rae Water and Sewer Dist 313 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 Rae Water and Sewer Dist 313 have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2023. 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 Rae Water and Sewer Dist 313'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, 2 are health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the MT state drinking water program.
Where can I find Rae Water and Sewer Dist 313's water quality report?
As a community water system, Rae Water and Sewer Dist 313 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 Gallatin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bozeman City of | Gallatin | 56,000 | Community | Surface water |
| Montana State University Bozeman | Gallatin | 19,200 | Non-transient non-community | Purchased surface water |
| Belgrade City of | Gallatin | 10,460 | Community | Groundwater |
| West Yellowstone Town of | Gallatin | 9,899 | Community | Groundwater |
| North Star Zoot Water | Gallatin | 4,323 | Community | Groundwater |
| River Rock County Water and Sewer Dist | Gallatin | 4,200 | 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, “Rae Water and Sewer Dist 313, PWSID MT0000628, Montana”, https://aquacensus.com/water-systems/montana/rae-water-and-sewer-dist-313-mt0000628 (data as of October 1, 2026).