Public water system · MD0100025
ActiveTown of Walkersville
At a glance
Town of Walkersville (PWSID MD0100025) is an active community water system in Frederick County, Maryland. It reports serving 8,440 people through 2,857 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
8,440
Service connections
2,857
Primary source
GU
Groundwater under influence of surface water
System type
CWS
Community water system
System record
How does Town of Walkersville compare with other water systems in Frederick County?
By EPA's size categories, Town of Walkersville is a medium system (3,301 to 10,000 people). Frederick County has 211 active public water systems, and Town of Walkersville is the 3rd-largest of them by population served. Its population served is about 8.4 times the county average of 1,007 people per system, and accounts for 4% of the 212,367 people reported by systems filed under the county. Across Maryland, the 2,992 active systems average 1,947 people each. Nationally, the average active community water system reports serving 6,703 people, so Town of Walkersville is about 26% above that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Maryland has 422 active community water systems, 14% of the state's 2,992 active systems. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 29 Maryland systems (1%) list groundwater under influence of surface water as their primary source.
Who owns and regulates Town of Walkersville?
EPA lists Town of Walkersville 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. 41 of the 211 active systems in Frederick County (19%) are also owned by a local government.
Does Town of Walkersville have drinking water violations?
Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in July 2025. The violations listed here began between July 1995 and July 2025. By type: 6 required treatment not met, 3 monitoring and reporting, 1 reporting, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Surface Water Treatment Rule (4 of them). EPA lists 9 as resolved and 3 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 |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2013-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2009-02-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2008-01-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1999-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1998-01-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1995-09-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1995-08-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1995-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
The 12 most recent 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.
Town of Walkersville: frequently asked questions
Who runs Town of Walkersville?
Town of Walkersville (PWSID MD0100025) is a community water system owned by a local government. It is regulated by the MD state drinking water program.
How many people does Town of Walkersville serve?
Town of Walkersville reports serving 8,440 people through 2,857 service connections in Frederick County, Maryland.
Where does Town of Walkersville get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does Town of Walkersville have any drinking water violations?
Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in July 2025. 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 Town of Walkersville'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. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MD state drinking water program.
Where can I find Town of Walkersville's water quality report?
As a community water system, Town of Walkersville must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Frederick County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| New Design - Frederick County | Frederick | 74,911 | Community | Surface water |
| City of Frederick | Frederick | 54,000 | Community | Surface water |
| Fort Detrick | Frederick | 7,900 | Community | Surface water |
| City of Brunswick | Frederick | 7,312 | Community | Surface water |
| Town of Thurmont | Frederick | 6,200 | Community | Groundwater under influence of surface water |
| Town of Middletown | Frederick | 4,288 | 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, “Town of Walkersville, PWSID MD0100025, Maryland”, https://aquacensus.com/water-systems/maryland/town-of-walkersville-md0100025 (data as of October 1, 2026).