Public water system · MD1300009
ActiveUmmc - Midtown Campus Armory Building
At a glance
Ummc - Midtown Campus Armory Building (PWSID MD1300009) is an active non-transient non-community water system in Baltimore city County, Maryland. It reports serving 500 people through 1 service connection. Its primary water source is purchased surface water, and EPA lists it as under public/private ownership. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
500
Service connections
1
Primary source
SWP
Purchased surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Ummc - Midtown Campus Armory Building compare with other water systems in Baltimore city County?
By EPA's size categories, Ummc - Midtown Campus Armory Building is a very small system (500 people or fewer). Baltimore city County has 12 active public water systems. Its population served is well below the county average of 134,124 people per system, and accounts for less than 0.1% of the 1,609,484 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 Ummc - Midtown Campus Armory Building is about 16% above 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 48 Maryland systems (1.6%) list purchased surface water as their primary source.
Who owns and regulates Ummc - Midtown Campus Armory Building?
EPA lists Ummc - Midtown Campus Armory Building as under public/private ownership. 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. 5 of the 12 active systems in Baltimore city County (42%) are also under public/private ownership.
Does Ummc - Midtown Campus Armory Building 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 Ummc - Midtown Campus Armory Building. For the latest compliance status, check EPA ECHO for current compliance history.
Ummc - Midtown Campus Armory Building: frequently asked questions
Who runs Ummc - Midtown Campus Armory Building?
Ummc - Midtown Campus Armory Building (PWSID MD1300009) is a non-transient non-community water system under public/private ownership. It is regulated by the MD state drinking water program.
How many people does Ummc - Midtown Campus Armory Building serve?
Ummc - Midtown Campus Armory Building reports serving 500 people through 1 service connection in Baltimore city County, Maryland.
Where does Ummc - Midtown Campus Armory Building get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Ummc - Midtown Campus Armory Building have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Ummc - Midtown Campus Armory Building'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 Ummc - Midtown Campus Armory Building's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ummc - Midtown Campus Armory Building 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 Baltimore city County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Baltimore | Baltimore city | 1,600,000 | Community | Surface water |
| Johns Hopkins University | Baltimore city | 2,058 | Community | Purchased surface water |
| Johns Hopkins Hospital | Baltimore city | 2,000 | Non-transient non-community | Purchased surface water |
| Johns Hopkins Bayview Medical Center | Baltimore city | 950 | Non-transient non-community | Purchased surface water |
| Mount Washington Pediatric Hospital | Baltimore city | 870 | Non-transient non-community | Purchased surface water |
| Umd Rehabilitation and Orthopedic Inst. | Baltimore city | 860 | Non-transient non-community | Purchased 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, “Ummc - Midtown Campus Armory Building, PWSID MD1300009, Maryland”, https://aquacensus.com/water-systems/maryland/ummc-midtown-campus-armory-building-md1300009 (data as of October 1, 2026).