Public water system · MD1180036
ActiveMother Catherine Academy
At a glance
Mother Catherine Academy (PWSID MD1180036) is an active non-transient non-community water system in St. Mary's County, Maryland. It reports serving 250 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 1998.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
250
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Mother Catherine Academy compare with other water systems in St. Mary's County?
By EPA's size categories, Mother Catherine Academy is a very small system (500 people or fewer). St. Mary's County has 194 active public water systems. Its population served is about 61% below the county average of 642 people per system, and accounts for 0.2% of the 124,635 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 Mother Catherine Academy is about 42% below 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 Mother Catherine Academy?
EPA lists Mother Catherine Academy 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. 137 of the 194 active systems in St. Mary's County (71%) are also privately owned.
Does Mother Catherine Academy have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 1998. The violations listed here began between October 1992 and October 1998. By type: 3 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 as resolved and 1 as archived. 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. 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 |
|---|---|---|---|---|
| 1998-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1994-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 3 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.
Mother Catherine Academy: frequently asked questions
Who runs Mother Catherine Academy?
Mother Catherine Academy (PWSID MD1180036) is a non-transient non-community water system privately owned. It is regulated by the MD state drinking water program.
How many people does Mother Catherine Academy serve?
Mother Catherine Academy reports serving 250 people through 1 service connection in St. Mary's County, Maryland.
Where does Mother Catherine Academy 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 Mother Catherine Academy have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 1998. 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 Mother Catherine Academy'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 3 violations for this system; none is health-based, and the most recent began in October 1998. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Mother Catherine Academy's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mother Catherine Academy 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 St. Mary's County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lexington Park | St. Mary's | 43,030 | Community | Groundwater |
| Patuxent Naval Air Station (Navfac-Wash) | St. Mary's | 22,000 | Community | Groundwater |
| Town of Leonardtown | St. Mary's | 5,000 | Community | Groundwater |
| Country Lakes | St. Mary's | 3,016 | Community | Groundwater |
| Cedar Cove | St. Mary's | 2,728 | Community | Groundwater |
| Saint Marys College | St. Mary's | 2,200 | 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, “Mother Catherine Academy, PWSID MD1180036, Maryland”, https://aquacensus.com/water-systems/maryland/mother-catherine-academy-md1180036 (data as of October 1, 2026).