Public water system · MD1041012
ActiveCalvert Cliffs State Park
At a glance
Calvert Cliffs State Park (PWSID MD1041012) is an active transient non-community water system in Calvert County, Maryland. It reports serving 100 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list one violation for this system; it is health-based, and the most recent began in July 1999.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Calvert Cliffs State Park compare with other water systems in Calvert County?
By EPA's size categories, Calvert Cliffs State Park 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 Calvert Cliffs State Park is about 31% 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 Calvert Cliffs State Park?
EPA lists Calvert Cliffs State Park as owned by a state government. 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. 2 of the 203 active systems in Calvert County (1%) are also owned by a state government.
Does Calvert Cliffs State Park have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in July 1999. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 1999-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
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.
Calvert Cliffs State Park: frequently asked questions
Who runs Calvert Cliffs State Park?
Calvert Cliffs State Park (PWSID MD1041012) is a transient non-community water system owned by a state government. It is regulated by the MD state drinking water program.
How many people does Calvert Cliffs State Park serve?
Calvert Cliffs State Park reports serving 100 people through 2 service connections in Calvert County, Maryland.
Where does Calvert Cliffs State Park 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 Calvert Cliffs State Park have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in July 1999. 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 Calvert Cliffs State Park'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 July 1999. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Calvert Cliffs State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Calvert Cliffs State Park 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, “Calvert Cliffs State Park, PWSID MD1041012, Maryland”, https://aquacensus.com/water-systems/maryland/calvert-cliffs-state-park-md1041012 (data as of October 1, 2026).