Public water system · VA6107175
ActiveAdesa Washington Dc
At a glance
Adesa Washington Dc (PWSID VA6107175) is an active non-transient non-community water system in Loudoun County, Virginia. It reports serving 178 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in December 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
178
Service connections
3
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Adesa Washington Dc compare with other water systems in Loudoun County?
By EPA's size categories, Adesa Washington Dc is a very small system (500 people or fewer). Loudoun County has 92 active public water systems. Its population served is well below the county average of 4,681 people per system, and accounts for less than 0.1% of the 430,687 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 Adesa Washington Dc is about 59% 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 Adesa Washington Dc?
EPA lists Adesa Washington Dc 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. 76 of the 92 active systems in Loudoun County (83%) are also privately owned.
Does Adesa Washington Dc have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in December 2021. The violations listed here began between July 2008 and December 2021. By type: 6 contaminant level above the legal limit, 3 monitoring and reporting, 2 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 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 |
|---|---|---|---|---|
| 2021-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2019-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-10-05 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2008-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2008-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Adesa Washington Dc: frequently asked questions
Who runs Adesa Washington Dc?
Adesa Washington Dc (PWSID VA6107175) is a non-transient non-community water system privately owned. It is regulated by the VA state drinking water program.
How many people does Adesa Washington Dc serve?
Adesa Washington Dc reports serving 178 people through 3 service connections in Loudoun County, Virginia.
Where does Adesa Washington Dc 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 Adesa Washington Dc have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in December 2021. 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 Adesa Washington Dc'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, 6 are health-based, and the most recent began in December 2021. For current results, consult EPA ECHO, or the VA state drinking water program.
Where can I find Adesa Washington Dc's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Adesa Washington Dc 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 Loudoun County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Loudoun Water - Central System | Loudoun | 334,808 | Community | Surface water |
| Leesburg, Town of | Loudoun | 65,028 | Community | Surface water |
| Purcellville, Town of | Loudoun | 8,929 | Community | Surface water |
| Round Hill, Town of | Loudoun | 5,055 | Community | Groundwater |
| Lovettsville, Town of | Loudoun | 2,964 | Community | Groundwater |
| Hamilton, Town of | Loudoun | 2,240 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Adesa Washington Dc, PWSID VA6107175, Virginia”, https://aquacensus.com/water-systems/virginia/adesa-washington-dc-va6107175 (data as of October 1, 2026).