Public water system · MD0300002
ActiveCity of Baltimore
Community water system in Baltimore city County, Maryland, drawing primarily on surface water.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,600,000
Service connections
424,600
Primary source
SW
Surface water
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlordanecode 2959 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlordanecode 2959 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2022-09-05 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2016-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2015-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
The 12 most recent 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 Baltimore: frequently asked questions
Is City of Baltimore's water safe to drink?
City of Baltimore is an active community water system regulated under the Safe Drinking Water Act, overseen by the MD state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs City of Baltimore?
City of Baltimore (PWSID MD0300002) is a local government-owned community water system, regulated by the MD state drinking water program.
How many people does City of Baltimore serve?
City of Baltimore reports serving 1,600,000 people through 424,600 service connections in Baltimore city County, Maryland.
Where does City of Baltimore get its water?
EPA SDWIS lists this system's primary water source as surface water.
Other water systems in Baltimore city County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Johns Hopkins University | Baltimore city | 2,058 | Community | Purchased surface water |
| Johns Hopkins Hospital | Baltimore city | 2,000 | Non-transient non-community | Purchased surface water |
| Johns Hopkins Bayview Medical Center | Baltimore city | 950 | Non-transient non-community | Purchased surface water |
| Mount Washington Pediatric Hospital | Baltimore city | 870 | Non-transient non-community | Purchased surface water |
| Umd Rehabilitation and Orthopedic Inst. | Baltimore city | 860 | Non-transient non-community | Purchased surface water |
| University of Maryland Medical Center | Baltimore city | 854 | Non-transient non-community | Purchased surface water |
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