Short answer: No measured result is above a legal limit; a past health-based violation (E. coli) is on record. City of Baltimore serves 1,600,000 residents.
Your water bill or annual water quality report names your actual supplier.
CITY OF BALTIMORE (EPA PWSID MD0300002) delivers surface water to 1,600,000 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.
2health-based violations in the last 10 years
From EPA SDWIS. Counted once per contaminant per year, as in the Track record score.
No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.
Every filing is listed; the Track record score counts at most one per contaminant per year.
Resolved
to Resolved
to Resolved
Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.
lead 2.74 µg/L, below the 15 µg/L action level (detected below the limit); 47 lead service lines; 385 galvanized lines to replace (context, not a tap measurement)
PFPeA 3 ng/L detected (no federal or state limit)
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Each card names which Baltimore findings its current certification covers, and which it doesn't.
As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Baltimore, PFPeA 3 ng/L was detected, with no federal or state limit; the lead 90th-percentile result was 2.74 µg/L against the 15 µg/L action level; one health-based violation is on record (E. coli). CITY OF BALTIMORE (PWSID MD0300002) has a Purity Score of 93/100 (confidence: moderate), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap.
CITY OF BALTIMORE (PWS ID MD0300002) is the public water system on record for Baltimore, Maryland, serving about 1,600,000 people. Confirm the utility on your water bill before acting on a specific finding.
Surface water (primary source of record in EPA SDWIS).
Yes. In EPA's UCMR 5 testing (2024-08-15 to 2025-05-13), PFPeA was detected at 3 ng/L. It has no federal or state limit, so PurityMap shows it without grading it. No PFAS with a limit was detected.
CITY OF BALTIMORE's most recent lead 90th-percentile result (2022–2024) was 2.74 µg/L, below the 15 µg/L action level. That figure comes from sampled homes; lead usually enters from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
The federal SDWIS record lists a health-based violation for CITY OF BALTIMORE within about the last ten years: E. coli (2022). The findings above show each one's status.
PurityMap's current record for Baltimore holds 32 findings: 1 above a reference, 1 detected within the reference, 1 detected with no limit and 29 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
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| Contaminant | Result | Benchmark | Sampled | Source |
|---|---|---|---|---|
| E. coli | = | Federal MCL | 2022 | EPA SDWIS Violations & Enforcement: CITY OF BALTIMORE (MD0300002) |
| Lead (90th percentile) | 2.74 µg/L | 15 µg/L federal action level | 2022–2024 monitoring period | Lead & Copper Rule 90th-percentile: CITY OF BALTIMORE (MD0300002) |
| Perfluoropentanoic acid (PFPeA) | 3 ng/L | No federal or state limit; shown for transparency | 2024-08-15 to 2025-05-13 | UCMR5 Analytical Results: CITY OF BALTIMORE (MD0300002) |
Perfluoropentanoic acid (PFPeA)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorooctanesulfonic acid (PFOS)
Perfluoropentanesulfonic acid (PFPeS)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)
Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.
UCMR5 Analytical Results
UCMR5 Analytical Results: CITY OF BALTIMORE (MD0300002)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: CITY OF BALTIMORE (MD0300002)
US EPA SDWIS
State SDWIS Compliance Record
EPA SDWIS Violations & Enforcement: CITY OF BALTIMORE (MD0300002)
US EPA SDWIS
Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.
Start with the hot-or-cold tap check. Where City of Baltimore reported something related, it's shown below.
Lead at City of Baltimore: 2.74 µg/L (90th percentile, 2022–2024 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.