Public water system · MT0001675
ActiveCenex Zip Trip Num 50
At a glance
Cenex Zip Trip Num 50 (PWSID MT0001675) is an active transient non-community water system in Stillwater County, Montana. It reports serving 1,500 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, none is health-based, and the most recent began in August 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,500
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Cenex Zip Trip Num 50 compare with other water systems in Stillwater County?
By EPA's size categories, Cenex Zip Trip Num 50 is a small system (501 to 3,300 people). Stillwater County has 30 active public water systems, and Cenex Zip Trip Num 50 is the 2nd-largest of them by population served. Its population served is about 5.4 times the county average of 278 people per system, and accounts for 18% of the 8,352 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 Cenex Zip Trip Num 50 is about 10 times 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 Cenex Zip Trip Num 50?
EPA lists Cenex Zip Trip Num 50 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. 21 of the 30 active systems in Stillwater County (70%) are also privately owned.
Does Cenex Zip Trip Num 50 have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2025. The violations listed here began between January 2011 and August 2025. By type: 8 monitoring and reporting, 3 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is E. coli (4 of them). EPA lists 10 as resolved, 1 as unaddressed and 1 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2025-08-14 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2025-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2022-09-22 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2020-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-11-05 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2017-09-27 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2017-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-04-02 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-01-01 | 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.
Cenex Zip Trip Num 50: frequently asked questions
Who runs Cenex Zip Trip Num 50?
Cenex Zip Trip Num 50 (PWSID MT0001675) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Cenex Zip Trip Num 50 serve?
Cenex Zip Trip Num 50 reports serving 1,500 people through 1 service connection in Stillwater County, Montana.
Where does Cenex Zip Trip Num 50 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 Cenex Zip Trip Num 50 have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2025. 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 Cenex Zip Trip Num 50'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, none is health-based, and the most recent began in August 2025. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find Cenex Zip Trip Num 50's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Cenex Zip Trip Num 50 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 Stillwater County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Columbus Town of | Stillwater | 1,900 | Community | Groundwater |
| Absarokee Water and Sewer Dist | Stillwater | 1,100 | Community | Groundwater |
| Columbus Rest Area Westbound | Stillwater | 800 | Transient non-community | Groundwater |
| Columbus Rest Area Eastbound | Stillwater | 800 | Transient non-community | Groundwater |
| Stillwater Mining Company | Stillwater | 630 | Non-transient non-community | Groundwater |
| Park City School K 12 | Stillwater | 300 | 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, “Cenex Zip Trip Num 50, PWSID MT0001675, Montana”, https://aquacensus.com/water-systems/montana/cenex-zip-trip-num-50-mt0001675 (data as of October 1, 2026).