Public water system profile

City of Annapolis

Explore available public water records for City of Annapolis (PWSID MD0020001). 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 Annapolis (PWSID MD0020001). Read it with the source links and limitations below.

Last updated: Data reviewed:

System identity

PWSID
MD0020001
State
Maryland
Linked communities
Annapolis
County context
Not listed in current record
System type
Community water system
Source water
Groundwater from confined aquifers
Population served context
35,000
Service connections
Not listed in current record
Latest reviewed report
2025 report link found
Data updated
2026-07-15

Maryland's reviewed system record lists 35,000 people and 11,100 residential (RS) connections for PWSID MD0020001. The connection count is not displayed as an unqualified total. The Annapolis navigation relationship does not establish service for a specific address.

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 Annapolis. 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 Annapolis
Substance and testing periodReported valueRange in reportLimit or standardSource tableReport-printed status
BariumTesting period: Jan 20250.0072 ppmHighest level detectedn/aMCL: 2; MCLG: 2WATER QUALITY DATA 2025Page 2Typical source, as printed: Erosion of natural deposits; discharge of drilling wastes; discharge from metal refineries.Violation: No, as printed for this sample period
Total Trihalomethanes (ppb) STAGE 2Testing period: Oct 20254.6 ppbHighest level detected2.3-4.6MCL: 80; MCLG: n/aWATER QUALITY DATA 2025Page 2Typical source, as printed: By-product of drinking water disinfection.Violation: No, as printed for this sample period

Report row

Barium

Range in report
n/a
Highest level detected
0.0072 ppm
Testing period
Jan 2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 2; MCLG: 2
Report-printed status
Violation: No, as printed for this sample period

Source · Page 2

WATER QUALITY DATA 2025

Typical source, as printed: Erosion of natural deposits; discharge of drilling wastes; discharge from metal refineries.

Report row

Total Trihalomethanes (ppb) STAGE 2

Range in report
2.3-4.6 ppb
Highest level detected
4.6 ppb
Testing period
Oct 2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 80; MCLG: n/a
Report-printed status
Violation: No, as printed for this sample period

Source · Page 2

WATER QUALITY DATA 2025

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

Source report notes

Source: City of Annapolis 2025 Annual Drinking Water Quality Report. Retrieved 2026-07-15.

  • Applies to: Barium

    Violation: No is preserved only for the Jan 2025 Barium row; the printed range is n/a, and no current compliance, advisory, or safety conclusion is inferred.

  • Applies to: Total Trihalomethanes (ppb) STAGE 2

    The source label, STAGE 2 qualifier, October 2025 sample period, and Violation: No value are preserved without a current compliance, advisory, or safety 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 Annapolis. 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 Barium and Total Trihalomethanes from the 2025 report. Both rows print Violation: No for their sample periods; that wording is not a current compliance, advisory, or tap-level conclusion.
  • Two of eight numeric result rows are modeled. The other detected, disinfectant, unregulated, and Lead/Copper entries and report narrative remain in the linked source.
  • The City report says source water comes from eight wells in confined aquifers. Maryland lists groundwater as the primary source; this system-level description does not determine conditions at a particular tap.
  • The report PDF does not print MD0020001. Its identity is bound jointly through the official City report and Water Treatment Plant pages and Maryland's exact CITY OF ANNAPOLIS / MD0020001 record.
  • Maryland lists 11,100 residential (RS) connections. The generic service-connection field remains absent rather than treating that category as a reviewed all-connection total.
  • The Annapolis relationship supports navigation only and does not prove the provider for every address. Confirm service with a bill, utility account, City source, or Maryland record.
  • Use the City Alert Center and Maryland Water Supply Program for current instructions. This profile does not replace official utility, Maryland, or public-health notices. It does not assert whether an active water notice exists or 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.
  • Address-level service can vary. Confirm the serving provider with a bill, account portal, utility, city, or state source.

Latest Reviewed Report

Latest reviewed report found by this site

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

Utility reportReport data updated:

2025 Annual Drinking Water Quality Report

Open 2025 water quality report

The 2025 report link is available for City of Annapolis. 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
City of Annapolis 2025 Annual Drinking Water Quality Report
Source URL
Open report source
Source retrieved
2026-07-15
Last reviewed
2026-07-15

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
Listed from reviewed source
Service connections
Not listed in current record
City context
Annapolis
County context
Not listed in current record

Local Context

City and state context for this system

City of Annapolis is linked here to Annapolis 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
Annapolis
County context
Not listed in current record
State context
Maryland

Related Explainers

Related contaminants and guides

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

Metals and inorganic chemicals

Barium

Barium is a regulated inorganic contaminant. A report row supplies a system, period, unit, criterion, result, and printed status rather than a current household conclusion.

Read the Barium contaminant guide

How to look up your drinking water system

Start with a utility bill, PWSID, state lookup tool, or official report so you can find the public water system behind a city or provider name.

View How to look up your drinking water system

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.

Suggest an update

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.

View Data methodology

Data limitations

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

View Data limitations