Public water system · VA3740500
ActiveNaval Support Activity Portsmouth
At a glance
Naval Support Activity Portsmouth (PWSID VA3740500) is an active community water system in Virginia. It reports serving 17,000 people through 260 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in October 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
17,000
Service connections
260
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Naval Support Activity Portsmouth compare with other water systems in Virginia?
By EPA's size categories, Naval Support Activity Portsmouth is a large system (10,001 to 100,000 people). 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 Naval Support Activity Portsmouth is about 154% above 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 Naval Support Activity Portsmouth?
EPA lists Naval Support Activity Portsmouth as owned by the federal 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.
Does Naval Support Activity Portsmouth have drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in October 2013. The violations listed here began between June 2008 and October 2013. By type: 12 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (12 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 |
|---|---|---|---|---|
| 2013-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2013-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2013-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2013-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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 |
| 2008-06-01 | 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.
Naval Support Activity Portsmouth: frequently asked questions
Who runs Naval Support Activity Portsmouth?
Naval Support Activity Portsmouth (PWSID VA3740500) is a community water system owned by the federal government. It is regulated by the VA state drinking water program.
How many people does Naval Support Activity Portsmouth serve?
Naval Support Activity Portsmouth reports serving 17,000 people through 260 service connections in Virginia.
Where does Naval Support Activity Portsmouth 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 Naval Support Activity Portsmouth have any drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in October 2013. 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 Naval Support Activity Portsmouth'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, 12 are health-based, and the most recent began in October 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the VA state drinking water program.
Where can I find Naval Support Activity Portsmouth's water quality report?
As a community water system, Naval Support Activity Portsmouth 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 Virginia
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Fairfax County Water Authority | Fairfax | 1,121,613 | Community | Surface water |
| Virginia Beach, City of | — | 437,994 | Community | Purchased surface water |
| Newport News, City of | — | 407,300 | Community | Surface water |
| Chesterfield Co Central Water System | Chesterfield | 389,897 | Community | Surface water |
| Loudoun Water - Central System | Loudoun | 334,808 | Community | Surface water |
| Henrico County Water System | Henrico | 330,000 | Community | 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, “Naval Support Activity Portsmouth, PWSID VA3740500, Virginia”, https://aquacensus.com/water-systems/virginia/naval-support-activity-portsmouth-va3740500 (data as of October 1, 2026).