Public water system · MD0100005
ActiveCity of Brunswick
At a glance
City of Brunswick (PWSID MD0100005) is an active community water system in Frederick County, Maryland. It reports serving 7,312 people through 5,322 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in October 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,312
Service connections
5,322
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Brunswick compare with other water systems in Frederick County?
By EPA's size categories, City of Brunswick is a medium system (3,301 to 10,000 people). Frederick County has 211 active public water systems, and City of Brunswick is the 5th-largest of them by population served. Its population served is about 7.3 times the county average of 1,007 people per system, and accounts for 3.4% 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 City of Brunswick is roughly in line with 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 31 Maryland systems (1%) list surface water as their primary source.
Who owns and regulates City of Brunswick?
EPA lists City of Brunswick 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 City of Brunswick have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in October 2022. The violations listed here began between January 2000 and October 2022. By type: 7 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2022-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2010-11-30 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2007-10-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
All 8 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.
City of Brunswick: frequently asked questions
Who runs City of Brunswick?
City of Brunswick (PWSID MD0100005) is a community water system owned by a local government. It is regulated by the MD state drinking water program.
How many people does City of Brunswick serve?
City of Brunswick reports serving 7,312 people through 5,322 service connections in Frederick County, Maryland.
Where does City of Brunswick get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does City of Brunswick have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in October 2022. 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 City of Brunswick'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 8 violations for this system; 1 is health-based, and the most recent began in October 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the MD state drinking water program.
Where can I find City of Brunswick's water quality report?
As a community water system, City of Brunswick 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 |
| Town of Walkersville | Frederick | 8,440 | Community | Groundwater under influence of surface water |
| Fort Detrick | Frederick | 7,900 | 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, “City of Brunswick, PWSID MD0100005, Maryland”, https://aquacensus.com/water-systems/maryland/city-of-brunswick-md0100005 (data as of October 1, 2026).