Public water system · MD1151011
ActiveDickerson Market
At a glance
Dickerson Market (PWSID MD1151011) is an active transient non-community water system in Montgomery County, Maryland. It reports serving 510 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in June 2012.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
510
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Dickerson Market compare with other water systems in Montgomery County?
By EPA's size categories, Dickerson Market is a small system (501 to 3,300 people). Montgomery County has 49 active public water systems, and Dickerson Market is the 6th-largest of them by population served. Its population served is well below the county average of 39,103 people per system, and accounts for less than 0.1% of the 1,916,066 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 Dickerson Market is about 3.5 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 Dickerson Market?
EPA lists Dickerson Market 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. 40 of the 49 active systems in Montgomery County (82%) are also privately owned.
Does Dickerson Market have drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in June 2012. The violations listed here began between August 2005 and June 2012. By type: 3 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2012-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 5 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.
Dickerson Market: frequently asked questions
Who runs Dickerson Market?
Dickerson Market (PWSID MD1151011) is a transient non-community water system privately owned. It is regulated by the MD state drinking water program.
How many people does Dickerson Market serve?
Dickerson Market reports serving 510 people through 1 service connection in Montgomery County, Maryland.
Where does Dickerson Market 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 Dickerson Market have any drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in June 2012. 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 Dickerson Market'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 5 violations for this system; 3 are health-based, and the most recent began in June 2012. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Dickerson Market's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dickerson Market 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 Montgomery County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Washington Suburban Sanitary Commission | Montgomery | 1,900,000 | Community | Surface water |
| Town of Poolesville | Montgomery | 6,005 | Community | Groundwater under influence of surface water |
| Adventist Healthcare Shady Grove Med Ctr | Montgomery | 2,100 | Non-transient non-community | Purchased surface water |
| National Institutes of Health | Montgomery | 1,100 | Non-transient non-community | Purchased surface water |
| Glenstone Foundation | Montgomery | 537 | Non-transient non-community | Groundwater |
| Darnestown Swim and Raquet Club | Montgomery | 470 | 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, “Dickerson Market, PWSID MD1151011, Maryland”, https://aquacensus.com/water-systems/maryland/dickerson-market-md1151011 (data as of October 1, 2026).