Public water system · MD1211186
ActiveAc and T Big Pool
At a glance
Ac and T Big Pool (PWSID MD1211186) is an active transient non-community water system in Washington County, Maryland. It reports serving 1,018 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
1,018
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Ac and T Big Pool compare with other water systems in Washington County?
By EPA's size categories, Ac and T Big Pool is a small system (501 to 3,300 people). Washington County has 78 active public water systems. Its population served is about 36% below the county average of 1,584 people per system, and accounts for 0.8% of the 123,580 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 Ac and T Big Pool is about 7.1 times 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 Ac and T Big Pool?
EPA lists Ac and T Big Pool 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. 57 of the 78 active systems in Washington County (73%) are also privately owned.
Does Ac and T Big Pool 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 Ac and T Big Pool. For the latest compliance status, check EPA ECHO for current compliance history.
Ac and T Big Pool: frequently asked questions
Who runs Ac and T Big Pool?
Ac and T Big Pool (PWSID MD1211186) is a transient non-community water system privately owned. It is regulated by the MD state drinking water program.
How many people does Ac and T Big Pool serve?
Ac and T Big Pool reports serving 1,018 people through 1 service connection in Washington County, Maryland.
Where does Ac and T Big Pool 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 Ac and T Big Pool have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Ac and T Big Pool'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 Ac and T Big Pool's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ac and T Big Pool 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 Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Hagerstown | Washington | 92,200 | Community | Surface water |
| Boonsboro - Keedysville | Washington | 4,250 | Community | Surface water |
| Town of Smithsburg Distribution System | Washington | 2,500 | Community | Purchased surface water |
| Town of Williamsport Distribution System | Washington | 2,400 | Community | Purchased surface water |
| Town of Hancock | Washington | 1,921 | Community | Groundwater |
| Sideling Hill State Park Exhibit Rt 68 W | Washington | 1,603 | 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, “Ac and T Big Pool, PWSID MD1211186, Maryland”, https://aquacensus.com/water-systems/maryland/ac-and-t-big-pool-md1211186 (data as of October 1, 2026).