Baltimore City's public water supply is drawn from surface water sources and serves approximately 1.6 million people across more than 424,000 connections. The city's water system undergoes extensive treatment through a series of processes coded 240, 345, 360, 380, 401, 403, 421, 423, 560, 660, 741, and 742 to help maintain quality before reaching households.

Myth: The type of water source doesn't affect what you should expect at the tap

Surface water, the primary source for Baltimore City, differs from groundwater in several ways, including susceptibility to seasonal changes and the presence of naturally occurring minerals and organic matter. Because of this, water quality can vary more frequently and may include different constituents than those typical in wells or aquifers. Homeowners should know that public water system records reflect treated water conditions but individual household water quality may also be influenced by plumbing characteristics.

Myth: Whole-home water treatment systems require complicated upkeep

The documented water treatment technology, the C-Series Whole-Home + Drinking Combo System, is designed for accessible maintenance. It features a grain capacity of 32,000, which translates into extended periods between servicing needs. Routine attention involves straightforward processes to keep it functioning effectively, ensuring continuous management of water quality factors identified in the region.

Myth: Water quality remains constant year-round in local public systems

The record for Baltimore City's public water system includes samples collected at different times, notably showing a lead distribution result at the 90th percentile of 0.00274 mg/L as of December 31, 2024. This demonstrates some variation in water quality over time, reflecting distribution system and plumbing conditions rather than source water changes. Awareness of multi-year and seasonal trends helps households anticipate fluctuations that may affect treatment needs.

Myth: All fixtures and appliances are equally impacted by water quality issues

Fixtures closest to the water entry point, such as kitchen taps used for drinking, often show water quality improvements first after treatment deployment. Appliances that use water continuously, like refrigerators and coffee makers, may be more sensitive to changes in water quality. Understanding which parts of the home water system respond first to treatment can guide targeted verification and maintenance efforts.

Myth: Terms like 'detected,' 'median,' and 'range' indicate water safety or violations

Government water system records use terms like 'detected' to mean measurable concentrations identified by instruments. These terms do not imply that any constituent is unsafe or exceeds legal limits. For example, Baltimore City's water system has four EPA-identified health-based violations recorded among 34 total findings; however, detection of a substance alone is not a violation. Consumers should seek testing specific to their household water when concerned about actual conditions.

Myth: Plumbing materials and the age of pipes do not affect drinking water quality

The materials composing residential plumbing and their age can influence water quality at the tap, independent of source water conditions. The lead level reported from Baltimore City's distribution system reflects this distinction: it is a measure affected by plumbing, not source water concentrations. Home assessments and targeted solutions must consider these factors for a true understanding of water quality challenges.

For households seeking a comprehensive approach to managing Baltimore City's water characteristics and plumbing impacts, the C-Series Whole-Home + Drinking Combo System delivers a robust capacity of 32,000 grains for effective treatment coverage. This system ships ready to configure, helping address the specific demands measured within your home water environment.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2024-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA SDWIS record for CITY OF BALTIMORE (MD0300002), surface water supply, serving 1600000 people: 4 health-based violations of 34 total; lead 90th percentile 0.00274 mg/L