Public water system · MD1041269
ActiveFlag Pond Nature Center
At a glance
Flag Pond Nature Center (PWSID MD1041269) is an active transient non-community water system in Calvert County, Maryland. It reports serving 108 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
108
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Flag Pond Nature Center compare with other water systems in Calvert County?
By EPA's size categories, Flag Pond Nature Center is a very small system (500 people or fewer). Calvert County has 203 active public water systems. Its population served is well below the county average of 384 people per system, and accounts for 0.1% 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 Flag Pond Nature Center is about 25% below 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 Flag Pond Nature Center?
EPA lists Flag Pond Nature Center 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 Flag Pond Nature Center have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Flag Pond Nature Center. For the latest compliance status, check EPA ECHO for current compliance history.
Flag Pond Nature Center: frequently asked questions
Who runs Flag Pond Nature Center?
Flag Pond Nature Center (PWSID MD1041269) is a transient non-community water system privately owned. It is regulated by the MD state drinking water program.
How many people does Flag Pond Nature Center serve?
Flag Pond Nature Center reports serving 108 people through 1 service connection in Calvert County, Maryland.
Where does Flag Pond Nature Center 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 Flag Pond Nature Center have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Flag Pond Nature Center'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Flag Pond Nature Center's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Flag Pond Nature Center 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, “Flag Pond Nature Center, PWSID MD1041269, Maryland”, https://aquacensus.com/water-systems/maryland/flag-pond-nature-center-md1041269 (data as of October 1, 2026).