Public water system · MD1041222
ActiveCvs Dunkirk
At a glance
Cvs Dunkirk (PWSID MD1041222) is an active transient non-community water system in Calvert County, Maryland. It reports serving 210 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is health-based, and the most recent began in September 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
210
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Cvs Dunkirk compare with other water systems in Calvert County?
By EPA's size categories, Cvs Dunkirk is a very small system (500 people or fewer). Calvert County has 203 active public water systems. Its population served is about half of the county average of 384 people per system, and accounts for 0.3% of the 77,996 people reported by systems filed under the county. Across Maryland, the 2,992 active systems average 1,947 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Cvs Dunkirk is about 46% above that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Maryland has 2,079 active transient non-community water systems, 69% of the state's 2,992 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,870 Maryland systems (96%) list groundwater as their primary source.
Who owns and regulates Cvs Dunkirk?
EPA lists Cvs Dunkirk as privately owned. The MD state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 160 of the 203 active systems in Calvert County (79%) are also privately owned.
Does Cvs Dunkirk have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in September 2025. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Archived |
The one violation in EPA's records.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.
Cvs Dunkirk: frequently asked questions
Who runs Cvs Dunkirk?
Cvs Dunkirk (PWSID MD1041222) is a transient non-community water system privately owned. It is regulated by the MD state drinking water program.
How many people does Cvs Dunkirk serve?
Cvs Dunkirk reports serving 210 people through 1 service connection in Calvert County, Maryland.
Where does Cvs Dunkirk 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 Cvs Dunkirk have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in September 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 Cvs Dunkirk'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 one violation for this system; it is health-based, and the most recent began in September 2025. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Cvs Dunkirk's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Cvs Dunkirk is a 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 Calvert County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Chesapeake Ranch Estates | Calvert | 9,500 | Community | Groundwater |
| Town of Chesapeake Beach | Calvert | 5,000 | Community | Groundwater |
| Prince Frederick | Calvert | 4,371 | Community | Groundwater |
| Solomons | Calvert | 3,811 | Community | Groundwater |
| Town of North Beach | Calvert | 3,000 | Community | Groundwater |
| Northern Middle & High Schools | Calvert | 2,470 | 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, “Cvs Dunkirk, PWSID MD1041222, Maryland”, https://aquacensus.com/water-systems/maryland/cvs-dunkirk-md1041222 (data as of October 1, 2026).