Public water system · VA6013500
ActiveArlington County - Willston Area
At a glance
Arlington County - Willston Area (PWSID VA6013500) is an active community water system in Arlington County, Virginia. It reports serving 1,352 people through 313 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,352
Service connections
313
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Arlington County - Willston Area compare with other water systems in Arlington County?
By EPA's size categories, Arlington County - Willston Area is a small system (501 to 3,300 people). Arlington County has 3 active public water systems, and Arlington County - Willston Area is the 2nd-largest of them by population served. Its population served is well below the county average of 72,231 people per system, and accounts for 0.6% of the 216,692 people reported by systems filed under the county. Across Virginia, the 2,420 active systems average 3,122 people each. Nationally, the average active community water system reports serving 6,703 people, so Arlington County - Willston Area is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Virginia has 844 active community water systems, 35% of the state's 2,420 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 162 Virginia systems (6.7%) list purchased surface water as their primary source.
Who owns and regulates Arlington County - Willston Area?
EPA lists Arlington County - Willston Area as owned by a local government. 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. 2 of the 3 active systems in Arlington County (67%) are also owned by a local government.
Does Arlington County - Willston Area have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2016. The violations listed here began between January 2004 and October 2016. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Haloacetic acids (HAA5) (4 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2016-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2008-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2008-01-01 | Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2004-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2004-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2004-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2004-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | 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.
Arlington County - Willston Area: frequently asked questions
Who runs Arlington County - Willston Area?
Arlington County - Willston Area (PWSID VA6013500) is a community water system owned by a local government. It is regulated by the VA state drinking water program.
How many people does Arlington County - Willston Area serve?
Arlington County - Willston Area reports serving 1,352 people through 313 service connections in Arlington County, Virginia.
Where does Arlington County - Willston Area 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 Arlington County - Willston Area 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 October 2016. 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 Arlington County - Willston Area'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 October 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the VA state drinking water program.
Where can I find Arlington County - Willston Area's water quality report?
As a community water system, Arlington County - Willston Area must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Arlington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Arlington County | Arlington | 215,000 | Community | Purchased surface water |
| Virginia Hospital Center | Arlington | 340 | Non-transient non-community | Purchased surface water |
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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, “Arlington County - Willston Area, PWSID VA6013500, Virginia”, https://aquacensus.com/water-systems/virginia/arlington-county-willston-area-va6013500 (data as of October 1, 2026).