Public water system · VA4193750
ActivePotomac Supply Corporation
At a glance
Potomac Supply Corporation (PWSID VA4193750) is an active non-transient non-community water system in Westmoreland County, Virginia. It reports serving 94 people through 12 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
94
Service connections
12
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Potomac Supply Corporation compare with other water systems in Westmoreland County?
By EPA's size categories, Potomac Supply Corporation is a very small system (500 people or fewer). Westmoreland County has 41 active public water systems. Its population served is well below the county average of 408 people per system, and accounts for 0.6% of the 16,724 people reported by systems filed under the county. Across Virginia, the 2,420 active systems average 3,122 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Potomac Supply Corporation is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Virginia has 443 active non-transient non-community water systems, 18% of the state's 2,420 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,089 Virginia systems (86%) list groundwater as their primary source.
Who owns and regulates Potomac Supply Corporation?
EPA lists Potomac Supply Corporation as privately owned. The VA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 30 of the 41 active systems in Westmoreland County (73%) are also privately owned.
Does Potomac Supply Corporation have drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in July 2025. The violations listed here began between January 1996 and July 2025. By type: 3 monitoring and reporting, 2 contaminant level above the legal limit and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2025-07-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2012-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2000-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1997-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
All 6 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.
Potomac Supply Corporation: frequently asked questions
Who runs Potomac Supply Corporation?
Potomac Supply Corporation (PWSID VA4193750) is a non-transient non-community water system privately owned. It is regulated by the VA state drinking water program.
How many people does Potomac Supply Corporation serve?
Potomac Supply Corporation reports serving 94 people through 12 service connections in Westmoreland County, Virginia.
Where does Potomac Supply Corporation 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 Potomac Supply Corporation have any drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in July 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 Potomac Supply Corporation'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 6 violations for this system; 2 are health-based, and the most recent began in July 2025. For current results, consult EPA ECHO, or the VA state drinking water program.
Where can I find Potomac Supply Corporation's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Potomac Supply Corporation is a non-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 Westmoreland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Colonial Beach, Town of | Westmoreland | 3,875 | Community | Groundwater |
| Potomac Westmoreland Shores | Westmoreland | 1,743 | Community | Groundwater |
| Cabin Point and Glebe Harbour | Westmoreland | 1,450 | Community | Groundwater |
| Stratford Harbour | Westmoreland | 1,230 | Community | Groundwater |
| Montross, Town of | Westmoreland | 1,163 | Community | Groundwater |
| Placid Bay Estates | Westmoreland | 946 | 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, “Potomac Supply Corporation, PWSID VA4193750, Virginia”, https://aquacensus.com/water-systems/virginia/potomac-supply-corporation-va4193750 (data as of October 1, 2026).