Public water system · MD1070005
ActiveCalvert Elementary
At a glance
Calvert Elementary (PWSID MD1070005) is an active non-transient non-community water system in Cecil County, Maryland. It reports serving 389 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
389
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Calvert Elementary compare with other water systems in Cecil County?
By EPA's size categories, Calvert Elementary is a very small system (500 people or fewer). Cecil County has 166 active public water systems. Its population served is about 14% above the county average of 343 people per system, and accounts for 0.7% of the 56,867 people reported by systems filed under the county. Across Maryland, the 2,992 active systems average 1,947 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Calvert Elementary is roughly in line with that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Maryland has 491 active non-transient non-community water systems, 16% 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 Elementary?
EPA lists Calvert Elementary as owned by a local 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. 14 of the 166 active systems in Cecil County (8.4%) are also owned by a local government.
Does Calvert Elementary have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2023. The violations listed here began between October 1992 and January 2023. By type: 4 monitoring and reporting. The contaminant or rule involved most often is Nitrate (3 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1992-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 4 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.
Calvert Elementary: frequently asked questions
Who runs Calvert Elementary?
Calvert Elementary (PWSID MD1070005) is a non-transient non-community water system owned by a local government. It is regulated by the MD state drinking water program.
How many people does Calvert Elementary serve?
Calvert Elementary reports serving 389 people through 1 service connection in Cecil County, Maryland.
Where does Calvert Elementary 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 Elementary have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2023. 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 Elementary'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 4 violations for this system; none is health-based, and the most recent began in January 2023. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Calvert Elementary's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Calvert Elementary is a non-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 Cecil County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Town of Elkton | Cecil | 15,625 | Community | Surface water |
| Town of North East | Cecil | 8,600 | Community | Surface water |
| Town of Perryville | Cecil | 4,413 | Community | Surface water |
| Town of Charlestown | Cecil | 3,791 | Community | Groundwater |
| Town of Rising Sun | Cecil | 2,200 | Community | Purchased surface water |
| Perry Point V.A. Medical Center | Cecil | 2,000 | 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, “Calvert Elementary, PWSID MD1070005, Maryland”, https://aquacensus.com/water-systems/maryland/calvert-elementary-md1070005 (data as of October 1, 2026).