Public water system · MD0100029
ActiveWaterside
At a glance
Waterside (PWSID MD0100029) is an active community water system in Frederick County, Maryland. It reports serving 1,509 people through 559 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,509
Service connections
559
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Waterside compare with other water systems in Frederick County?
By EPA's size categories, Waterside is a small system (501 to 3,300 people). Frederick County has 211 active public water systems. Its population served is about 50% above the county average of 1,007 people per system, and accounts for 0.7% 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 Waterside is well below 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. 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 Waterside?
EPA lists Waterside 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 Waterside 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 Waterside. For the latest compliance status, check EPA ECHO for current compliance history.
Waterside: frequently asked questions
Who runs Waterside?
Waterside (PWSID MD0100029) is a community water system owned by a local government. It is regulated by the MD state drinking water program.
How many people does Waterside serve?
Waterside reports serving 1,509 people through 559 service connections in Frederick County, Maryland.
Where does Waterside 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 Waterside have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Waterside'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 the system's annual water quality report, EPA ECHO, or the MD state drinking water program.
Where can I find Waterside's water quality report?
As a community water system, Waterside 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 |
| City of Brunswick | Frederick | 7,312 | Community | Surface water |
| Town of Thurmont | Frederick | 6,200 | Community | Groundwater under influence of 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, “Waterside, PWSID MD0100029, Maryland”, https://aquacensus.com/water-systems/maryland/waterside-md0100029 (data as of October 1, 2026).