Public water system · VA6013080
ActiveNational Airport
At a glance
National Airport (PWSID VA6013080) is an active non-transient non-community water system in Arlington County, District of Columbia. It reports serving 28,055 people through 42 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in June 1994.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
28,055
Service connections
42
Primary source
SWP
Purchased surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does National Airport compare with other water systems in Arlington County?
By EPA's size categories, National Airport is a large system (10,001 to 100,000 people). Arlington County has 1 active public water system, and National Airport is the largest of them by population served. Its population served is roughly in line with the county average of 28,055 people per system, and accounts for 100% of the 28,055 people reported by systems filed under the county. Across District of Columbia, the 12 active systems average 58,113 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so National Airport is about 65 times 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. District of Columbia has 7 active non-transient non-community water systems, 58% of the state's 12 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 5 District of Columbia systems (42%) list purchased surface water as their primary source.
Who owns and regulates National Airport?
EPA lists National Airport 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. 1 of the 1 active systems in Arlington County (100%) are also privately owned.
Does National Airport have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in June 1994. The violations listed here began between June 1977 and June 1994. By type: 3 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 4 as archived. 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 |
|---|---|---|---|---|
| 1994-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1991-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1977-06-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 1977-06-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Archived |
All 4 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.
National Airport: frequently asked questions
Who runs National Airport?
National Airport (PWSID VA6013080) is a non-transient non-community water system privately owned. It is regulated by the VA state drinking water program.
How many people does National Airport serve?
National Airport reports serving 28,055 people through 42 service connections in Arlington County, District of Columbia.
Where does National Airport get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does National Airport have any drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in June 1994. 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 National Airport'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 4 violations for this system; 1 is health-based, and the most recent began in June 1994. For current results, consult EPA ECHO, or the VA state drinking water program.
Where can I find National Airport's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. National Airport 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.
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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, “National Airport, PWSID VA6013080, District of Columbia”, https://aquacensus.com/water-systems/district-of-columbia/national-airport-va6013080 (data as of October 1, 2026).