Public water system profile

City of Baltimore

Explore available public water records for City of Baltimore (PWSID MD0300002). Find annual reports, results listed in those reports, official sources, and clear notes about what the records can and cannot show. This page does not show conditions at a specific tap.

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System Snapshot

Available system-level context

This snapshot shows the identity and context fields currently available for City of Baltimore (PWSID MD0300002). Read it with the source links and limitations below.

Last updated: Data reviewed:

System identity

PWSID
MD0300002
State
Maryland
Linked communities
Baltimore
County context
Not listed in current record
System type
Community water system
Source water
Surface water from regional reservoir sources
Population served
Not listed in current record
Service connections
Not listed in current record
Latest reviewed report
2025 report link found
Data updated
2026-07-29

Read these as system-level fields from reviewed public records. Confirm provider and address-specific questions with official utility, city, state, or EPA sources.

Report-Listed Rows

Report-listed rows summarized from the latest reviewed report

2 report-listed rows are summarized for City of Baltimore. A listed row is not the same thing as a current advisory or household tap result.

Report year
2025
Rows summarized
2
Source tables represented
1
Scope
Past reporting period
Report-row preview from the latest reviewed report for City of Baltimore
Substance and testing periodReported valueRange in reportLimit or standardSource tableReport-printed status
Total THMsTesting period: 202577 ppbHighest Result (Locational Running Annual Average)23 - 133EPA's MCL 80 ppb; EPA's MCLG NA2025 Consumer Confidence Report (CCR) Detected Regulated Contaminants TablePage 24Typical source, as printed: By-product of drinking water chlorinationViolation: No, as printed for this sample period
HAA (5)Testing period: 202546 ppbHighest Result (Locational Running Annual Average)6 - 53EPA's MCL 60 ppb; EPA's MCLG NA2025 Consumer Confidence Report (CCR) Detected Regulated Contaminants TablePage 24Typical source, as printed: By-product of drinking water chlorinationViolation: No, as printed for this sample period

Report row

Total THMs

Range in report
23 - 133 ppb
Highest Result (Locational Running Annual Average)
77 ppb
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
EPA's MCL 80 ppb; EPA's MCLG NA
Report-printed status
Violation: No, as printed for this sample period

Source · Page 24

2025 Consumer Confidence Report (CCR) Detected Regulated Contaminants Table

Typical source, as printed: By-product of drinking water chlorination

Report row

HAA (5)

Range in report
6 - 53 ppb
Highest Result (Locational Running Annual Average)
46 ppb
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
EPA's MCL 60 ppb; EPA's MCLG NA
Report-printed status
Violation: No, as printed for this sample period

Source · Page 24

2025 Consumer Confidence Report (CCR) Detected Regulated Contaminants Table

Typical source, as printed: By-product of drinking water chlorination

Source report notes

Source: Baltimore City DPW 2025 Water Quality Report. Retrieved 2026-07-29.

  • Applies to: Total THMs

    The source-reported 2025 LRAA result is 77 and the printed range is 23 - 133. Violation: No is preserved only for this report-period row; it is not a report-wide, current-compliance, advisory, safety, or tap-level conclusion.

  • Applies to: Total THMs, HAA (5)

    Table note: Violations for Stage 2 THMs and HAAs are based on a locational annual average. Therefore, unless this exceeds the MCL, there is no violation.

  • Applies to: HAA (5)

    Violation: No is preserved only for this 2025 report-period row; it is not a report-wide, current-compliance, advisory, safety, or tap-level conclusion.

Review the linked source report for definitions, footnotes, and official wording.

Violation Records

Violation records shown on this page

This section shows 0 system-scoped violation detail records currently included for City of Baltimore. Annual reports and current notices can use different timing and terminology.

No system-scoped violation detail records are included in the available reviewed records for this system. This is not an official compliance finding. Check the official utility, state, or EPA source for current compliance and notice information.

Source notes for this system mention violation-related context, but this page does not currently display separate system-scoped violation detail records.

Important limitation

Profile summary note

This page summarizes public records reviewed by this site. It does not replace official notices, utility updates, or state drinking water information.

System profile limitations

  • The bounded preview shows only Total THMs and HAA (5) from the 2025 report.
  • The report also contains public-notice violation material and unresolved significant deficiencies. The two printed Violation: No cells are scoped only to their 2025 locational-running-annual-average rows and do not establish report-wide or current status.
  • The full lead/copper, inorganic, PFAS, radioactive, turbidity, bacteria, chlorine, public-notice, and deficiency material remains in the linked source and is not reproduced by this selected preview.
  • The report describes surface water stored in Liberty, Loch Raven, and Prettyboy reservoirs and a regional distribution system. This system-level description does not determine conditions at a specific tap.
  • Address-level service can vary. Confirm the serving provider with a bill, account portal, utility, city, or state source.
  • Annual-report values describe their printed reporting period. Use the linked provider, city, and Maryland paths for time-sensitive instructions; this site does not assert whether an active notice exists.
  • This profile does not replace official utility, state, or public-health notices and does not make a current safe/unsafe conclusion.
  • This page shows summarized entries from the available report. It does not include a complete contaminant or violation table.
  • Missing fields are not findings. They mean the field is not shown on this page from the records currently available.
  • This page summarizes available public records. It may not include every update, notice, or urgent official advisory.

Latest Reviewed Report

Latest reviewed report found by this site

The 2025 report found for City of Baltimore summarizes a past reporting period. It is not a live alert page.

Utility reportReport data updated:

2025 Water Quality Report

Open 2025 water quality report

The 2025 report link is available for City of Baltimore. Use the linked source report for the full table, definitions, footnotes, and official context. This page includes summarized entries from the available report. They are not a complete copy of the report table.

Report year
2025
Summarized entries shown
2
Source name
Baltimore City DPW 2025 Water Quality Report
Source URL
Open report source
Source retrieved
2026-07-29
Last reviewed
2026-08-20

Use the linked source report for the full table, definitions, footnotes, and official context.

Data coverage

This page summarizes selected public records for this public water system. It may not include every report, update, current notice, or address-level service detail.

Latest reviewed report
2025 report link found
Report-listed rows
2 summarized report entries shown
Detailed violation records
No detailed system-scoped records displayed
Population served
Not listed in current record
Service connections
Not listed in current record
City context
Baltimore
County context
Not listed in current record

Local Context

City and state context for this system

City of Baltimore is linked here to Baltimore for navigation. That relationship does not confirm the provider for a specific address; use a bill, utility portal, or official lookup source.

Linked local context

Linked communities
Baltimore
County context
Not listed in current record
State context
Maryland

Related Explainers

Related contaminants and guides

Use these explainers with City of Baltimore's report year, source table, and official report. Links are limited to existing guide and contaminant pages.

How to look up your drinking water system

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How to read a water quality report

A plain-English walkthrough of Consumer Confidence Reports, including report years, detected contaminants, legal limits, violations, and source notes.

View How to read a water quality report

Corrections

Suggest a correction or newer source

If you have a newer official report, utility source, or correction, send the source link for review. This helps keep profile summaries tied to public records.

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Evidence

Official sources and report links

Use official federal, state, utility, or report sources before treating a page as final.

Data methodology

Review source hierarchy, missing-data handling, and record limitations.

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Data limitations

See why limited records, missing fields, and current notices need careful interpretation.

View Data limitations