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Baltimore, MD

Is Baltimore tap water safe to drink?

CITY OF BALTIMORE supplies 1,600,000 people here, drawing surface water. Here is its entire federal compliance record — and, just as importantly, what that record cannot tell you.

Kitchen tap running — Baltimore municipal drinking water

People served

1,600,000

CITY OF BALTIMORE

Source

surface water

SW

Violations on record

34

all time

Health-based

4

see below

What this page is, and what it is not

This is the federal compliance record — what EPA has cited this utility for. It is not a water quality test. A system with no violations has not been shown to be clean; it has nothing reported, which is a weaker claim than it looks. The actual measured contaminant levels are in the utility’s annual Consumer Confidence Report, which every US utility must publish and which is not in this dataset.

Health-based citations

What CITY OF BALTIMORE has been cited for

Total Trihalomethanes (TTHMs)

1 citation · 2026

Health effects (EPA): Liver, kidney or central nervous system problems; increased risk of cancer

Typical sources: Byproduct of drinking water disinfection

EPA limit: --> 0.0807

EPA contaminant code 8000

1 citation · 2022

Haloacetic acids (HAA5)

1 citation · 2016

Health effects (EPA): Increased risk of cancer

Typical sources: Byproduct of drinking water disinfection

EPA limit: 0.0607

EPA contaminant code 0300

1 citation · 2009
The full record

Every violation, most recent first

FromContaminantWhat happenedHealth-based
2026-01-01Total Trihalomethanes (TTHMs)exceeded a maximum contaminant levelyes
2025-07-02EPA contaminant code 5200missed required reportingno
2023-04-01Toxaphenemissed monitoring or reportingno
2023-04-01Toxaphenemissed monitoring or reportingno
2023-04-01Chlordanemissed monitoring or reportingno
2023-04-01Chlordanemissed monitoring or reportingno
2023-04-01EPA contaminant code 2384missed monitoring or reportingno
2023-04-01EPA contaminant code 2384missed monitoring or reportingno
2023-01-01Nitrite (measured as Nitrogen)missed monitoring or reportingno
2022-09-05EPA contaminant code 7500other violationno
2022-09-01EPA contaminant code 8000exceeded a maximum contaminant levelyes
2016-01-01Haloacetic acids (HAA5)exceeded a maximum contaminant levelyes

Showing the 12 most recent of 34. The complete record is public at EPA ECHO.

What it means for filter choice

The health-based citations on this system name Total Trihalomethanes (TTHMs), Haloacetic acids (HAA5). Reverse osmosis removes dissolved contaminants of this kind more completely than a carbon pitcher does, which filters taste and some organics but not dissolved solids. Read the current Consumer Confidence Report before buying — a citation is a point in time, not a description of your water today.

Test before you spend

Fourteen dollars beats a compliance record

A federal record describes a utility. It cannot describe the pipe between the main and your kitchen, which is where lead usually comes from. Your own tap is the only thing that answers your own question.

HoneForest TDS meter

HoneForest TDS meter

$13.97

4.5 16,400 reviews · 2,000+ bought last month

Tells you your dissolved-solids number in about four seconds, which is where every decision on this site should start.

Against it: TDS is not a safety measurement. It counts dissolved solids and cannot see lead, PFAS or bacteria. It tells you how hard your water is and whether a filter is still doing anything — nothing more. Anyone selling you a system on a TDS reading alone is misleading you.

Check price on Amazonchecked
2026-08-31
HM Digital TDS-3

HM Digital TDS-3

$13.60

4.6 1,800 reviews · 1,000+ bought last month

The one that has been in service vans for fifteen years. Holds calibration better than the cheap ones.

Against it: Same limitation as every TDS meter, and it looks like it was designed in 2009 because it was.

Check price on Amazonchecked
2026-08-31

Source: US EPA Safe Drinking Water Information System, retrieved 2026-08-31 from data.epa.gov. Public water system MD0300002. Nothing on this page is written by hand — if a figure is not in EPA’s response, it does not appear here. All cities.