Public water system · VA4085550
ActiveMountain Run
At a glance
Mountain Run (PWSID VA4085550) is an active community water system in Hanover County, Virginia. It reports serving 225 people through 98 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 7 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
225
Service connections
98
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mountain Run compare with other water systems in Hanover County?
By EPA's size categories, Mountain Run is a very small system (500 people or fewer). Hanover County has 38 active public water systems. Its population served is well below the county average of 1,757 people per system, and accounts for 0.3% of the 66,775 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 Mountain Run 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 Mountain Run?
EPA lists Mountain Run 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. 24 of the 38 active systems in Hanover County (63%) are also privately owned.
Does Mountain Run have drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between April 2004 and July 2025. By type: 5 monitoring and reporting, 1 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Chlorine (4 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2023-08-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2009-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2004-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
All 7 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.
Mountain Run: frequently asked questions
Who runs Mountain Run?
Mountain Run (PWSID VA4085550) is a community water system privately owned. It is regulated by the VA state drinking water program.
How many people does Mountain Run serve?
Mountain Run reports serving 225 people through 98 service connections in Hanover County, Virginia.
Where does Mountain Run 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 Mountain Run have any drinking water violations?
EPA's records list 7 violations for this system; none is 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 Mountain Run'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 7 violations for this system; none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the VA state drinking water program.
Where can I find Mountain Run's water quality report?
As a community water system, Mountain Run 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 Hanover County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Hanover Suburban Water System | Hanover | 57,931 | Community | Surface water |
| Hanover Courthouse | Hanover | 1,068 | Non-transient non-community | Groundwater |
| Montpelier Shops | Hanover | 965 | Non-transient non-community | Groundwater |
| Calvary Pentecostal Camp | Hanover | 950 | Non-transient non-community | Groundwater |
| South Anna Elementary School | Hanover | 711 | Non-transient non-community | Groundwater |
| Rural Point Elementary School | Hanover | 580 | Non-transient non-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, “Mountain Run, PWSID VA4085550, Virginia”, https://aquacensus.com/water-systems/virginia/mountain-run-va4085550 (data as of October 1, 2026).