Public water system · WA5301109
ActiveArco Am/Pm (Fac 5840)
At a glance
Arco Am/Pm (Fac 5840) (PWSID WA5301109) is an active transient non-community water system in Whatcom County, California. It reports serving 29 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 11 violations for this system; none is health-based, and the most recent began in April 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
29
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Arco Am/Pm (Fac 5840) compare with other water systems in Whatcom County?
By EPA's size categories, Arco Am/Pm (Fac 5840) is a very small system (500 people or fewer). Whatcom County has 2 active public water systems, and Arco Am/Pm (Fac 5840) is the 2nd-largest of them by population served. Its population served is about 15% below the county average of 34 people per system, and accounts for 43% of the 68 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Arco Am/Pm (Fac 5840) is well below 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. California has 3,016 active transient non-community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Arco Am/Pm (Fac 5840)?
EPA lists Arco Am/Pm (Fac 5840) as privately owned. The WA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 2 of the 2 active systems in Whatcom County (100%) are also privately owned.
Does Arco Am/Pm (Fac 5840) have drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in April 2023. The violations listed here began between December 1995 and April 2023. By type: 6 monitoring and reporting and 5 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (5 of them). EPA lists 8 as resolved and 3 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 |
|---|---|---|---|---|
| 2023-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2005-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2004-10-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 11 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.
Arco Am/Pm (Fac 5840): frequently asked questions
Who runs Arco Am/Pm (Fac 5840)?
Arco Am/Pm (Fac 5840) (PWSID WA5301109) is a transient non-community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Arco Am/Pm (Fac 5840) serve?
Arco Am/Pm (Fac 5840) reports serving 29 people through 1 service connection in Whatcom County, California.
Where does Arco Am/Pm (Fac 5840) 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 Arco Am/Pm (Fac 5840) have any drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in April 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 Arco Am/Pm (Fac 5840)'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 11 violations for this system; none is health-based, and the most recent began in April 2023. For current results, consult EPA ECHO, or the WA state drinking water program.
Where can I find Arco Am/Pm (Fac 5840)'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Arco Am/Pm (Fac 5840) 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 Whatcom County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Evergreen Retreat MHP | Whatcom | 39 | 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, “Arco Am/Pm (Fac 5840), PWSID WA5301109, California”, https://aquacensus.com/water-systems/california/arco-am-pm-fac-5840-wa5301109 (data as of October 1, 2026).