Public water system · VA6107200
ActiveHillsboro, Town of
At a glance
Town of Hillsboro (PWSID VA6107200) is an active community water system in Loudoun County, Virginia. It reports serving 88 people through 32 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
88
Service connections
32
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Town of Hillsboro compare with other water systems in Loudoun County?
By EPA's size categories, Town of Hillsboro 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 community water system reports serving 6,703 people, so Town of Hillsboro 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. 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 Town of Hillsboro?
EPA lists Town of Hillsboro 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. 14 of the 92 active systems in Loudoun County (15%) are also owned by a local government.
Does Town of Hillsboro have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2024. The violations listed here began between January 2011 and December 2024. By type: 10 monitoring and reporting, 1 reporting and 1 contaminant level above the legal limit. 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 |
|---|---|---|---|---|
| 2024-12-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2011-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Town of Hillsboro: frequently asked questions
Who runs Town of Hillsboro?
Town of Hillsboro (PWSID VA6107200) is a community water system owned by a local government. It is regulated by the VA state drinking water program.
How many people does Town of Hillsboro serve?
Town of Hillsboro reports serving 88 people through 32 service connections in Loudoun County, Virginia.
Where does Town of Hillsboro 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 Town of Hillsboro have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2024. 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 Town of Hillsboro'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, one is health-based, and the most recent began in December 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the VA state drinking water program.
Where can I find Town of Hillsboro's water quality report?
As a community water system, Town of Hillsboro 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 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 |
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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, “Hillsboro, Town of, PWSID VA6107200, Virginia”, https://aquacensus.com/water-systems/virginia/hillsboro-town-of-va6107200 (data as of October 1, 2026).