Public water system · OR4195484

Active

First Stop Mart

At a glance

First Stop Mart (PWSID OR4195484) is an active transient non-community water system in Umatilla County, Oregon. It reports serving 550 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, 4 are health-based, and the most recent began in September 2020.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

550

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDOR4195484

System typeTransient non-community water system

Activity statusActive

Population served550

Service connections1

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyOR state drinking water program

City served—

StateOregon

ZIP—

CountyUmatilla County

How does First Stop Mart compare with other water systems in Umatilla County?

By EPA's size categories, First Stop Mart is a small system (501 to 3,300 people). Umatilla County has 66 active public water systems. Its population served is about half of the county average of 1,041 people per system, and accounts for 0.8% of the 68,687 people reported by systems filed under the county. Across Oregon, the 2,536 active systems average 1,587 people each. Nationally, the average active transient non-community water system reports serving 144 people, so First Stop Mart is about 3.8 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. Oregon has 1,250 active transient non-community water systems, 49% of the state's 2,536 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,175 Oregon systems (86%) list groundwater as their primary source.

Who owns and regulates First Stop Mart?

EPA lists First Stop Mart as privately owned. The OR state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 43 of the 66 active systems in Umatilla County (65%) are also privately owned.

Does First Stop Mart have drinking water violations?

Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in September 2020. The violations listed here began between January 2013 and September 2020. By type: 4 public notice, recordkeeping or other, 4 contaminant level above the legal limit, 3 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 11 as resolved and 1 as unaddressed. 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.

Began	Violation	Contaminant or rule	Health-based	Status
2020-09-01	MonitoringMonitoring, Additional Routine (RTCR) · code 3B	Revised Total Coliform Rulecode 8000	No	Resolved
2020-08-30	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2016-03-27	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Unaddressed
2016-03-05	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2016-02-07	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2016-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2015-12-24	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2015-12-20	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2015-12-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2015-11-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2015-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2013-01-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	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.

First Stop Mart: frequently asked questions

Who runs First Stop Mart?

First Stop Mart (PWSID OR4195484) is a transient non-community water system privately owned. It is regulated by the OR state drinking water program.

How many people does First Stop Mart serve?

First Stop Mart reports serving 550 people through 1 service connection in Umatilla County, Oregon.

Where does First Stop Mart 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 First Stop Mart have any drinking water violations?

Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in September 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 First Stop Mart'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, 4 are health-based, and the most recent began in September 2020. For current results, consult EPA ECHO, or the OR state drinking water program.

Where can I find First Stop Mart's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. First Stop Mart 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 Umatilla County

Water system	County	Population served	Type	Source
Hermiston, City of	Umatilla	20,000	Community	Surface water
Pendleton, City of	Umatilla	16,996	Community	Surface water
Umatilla, City of	Umatilla	8,256	Community	Groundwater
Milton-Freewater, City of	Umatilla	7,145	Community	Groundwater
Stanfield, City of	Umatilla	2,115	Community	Groundwater
Pilot Rock, City of	Umatilla	1,326	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, “First Stop Mart, PWSID OR4195484, Oregon”, https://aquacensus.com/water-systems/oregon/first-stop-mart-or4195484 (data as of October 1, 2026).