Public water system · VA4133620
ActiveMallard Bay Subdivision
At a glance
Mallard Bay Subdivision (PWSID VA4133620) is an active community water system in Northumberland County, Virginia. It reports serving 264 people through 92 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in March 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
264
Service connections
92
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mallard Bay Subdivision compare with other water systems in Northumberland County?
By EPA's size categories, Mallard Bay Subdivision is a very small system (500 people or fewer). Northumberland County has 61 active public water systems. Its population served is about 68% above the county average of 157 people per system, and accounts for 2.8% of the 9,598 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 Mallard Bay Subdivision 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 Mallard Bay Subdivision?
EPA lists Mallard Bay Subdivision 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. 59 of the 61 active systems in Northumberland County (97%) are also privately owned.
Does Mallard Bay Subdivision have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in March 2014. The violations listed here began between June 2000 and March 2014. By type: 1 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 2014-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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.
Mallard Bay Subdivision: frequently asked questions
Who runs Mallard Bay Subdivision?
Mallard Bay Subdivision (PWSID VA4133620) is a community water system privately owned. It is regulated by the VA state drinking water program.
How many people does Mallard Bay Subdivision serve?
Mallard Bay Subdivision reports serving 264 people through 92 service connections in Northumberland County, Virginia.
Where does Mallard Bay Subdivision 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 Mallard Bay Subdivision have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in March 2014. 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 Mallard Bay Subdivision'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 2 violations for this system; 1 is health-based, and the most recent began in March 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the VA state drinking water program.
Where can I find Mallard Bay Subdivision's water quality report?
As a community water system, Mallard Bay Subdivision 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 Northumberland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Northumberland Middle/High School | Northumberland | 899 | Non-transient non-community | Groundwater |
| Northumberland Elementary School | Northumberland | 830 | Non-transient non-community | Groundwater |
| Bay Quarter Shores | Northumberland | 726 | Community | Groundwater |
| Camp Kittamaqund Girl Scouts | Northumberland | 500 | Transient non-community | Groundwater |
| Reedville, Town of | Northumberland | 480 | Community | Groundwater |
| Sherwood Forest Shores | Northumberland | 421 | 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, “Mallard Bay Subdivision, PWSID VA4133620, Virginia”, https://aquacensus.com/water-systems/virginia/mallard-bay-subdivision-va4133620 (data as of October 1, 2026).