Public water system profile

NEW YORK CITY SYSTEM

Explore available public water records for NEW YORK CITY SYSTEM (PWSID NY7003493). 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 NEW YORK CITY SYSTEM (PWSID NY7003493). Read it with the source links and limitations below.

Last updated: Data reviewed:

System identity

PWSID
NY7003493
State
New York
Linked communities
New York
County context
Not listed in current record
System type
Not listed in current record
Source water
The 2025 report says New York City gets drinking water from 19 reservoirs and three controlled lakes across the Catskill, Delaware, and Croton surface-water supplies
Population served
Not listed in current record
Service connections
Not listed in current record
Latest reviewed report
2025 report link found
Data updated
2026-07-30

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 NEW YORK CITY SYSTEM. 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 NEW YORK CITY SYSTEM
Substance and testing periodReported valueRange in reportLimit or standardSource tableReport-printed status
BariumTesting period: 20250.02 mg/LAverage0.01 - 0.03NYSDOH MCL: 2; EPA MCLG: 22025 Drinking Water Quality Testing Results - Detected Conventional Physical and Chemical ParametersPage 13MCL VIOLATION: No, as printed for this sample period
NitrateTesting period: 20250.14 mg/L nitrogenAverage0.07 - 0.37NYSDOH MCL: 10; EPA MCLG: 102025 Drinking Water Quality Testing Results - Detected Conventional Physical and Chemical ParametersPage 14MCL VIOLATION: No, as printed for this sample period

Report row

Barium

Range in report
0.01 - 0.03 mg/L
Average
0.02 mg/L
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
NYSDOH MCL: 2; EPA MCLG: 2
Report-printed status
MCL VIOLATION: No, as printed for this sample period

Source · Page 13

2025 Drinking Water Quality Testing Results - Detected Conventional Physical and Chemical Parameters

Report row

Nitrate

Range in report
0.07 - 0.37 mg/L nitrogen
Average
0.14 mg/L nitrogen
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
NYSDOH MCL: 10; EPA MCLG: 10
Report-printed status
MCL VIOLATION: No, as printed for this sample period

Source · Page 14

2025 Drinking Water Quality Testing Results - Detected Conventional Physical and Chemical Parameters

Source report notes

Source: New York City 2025 Drinking Water Supply and Quality Report. Retrieved 2026-07-30.

  • Applies to: Barium

    The source prints Barium (mg/L), range 0.01 - 0.03, average 0.02, and No under MCL VIOLATION for the 2025 row. This is reported annual-report evidence. It is not a present-day compliance, advisory, safety, address-level, or household-tap conclusion.

  • Applies to: Nitrate

    The source prints Nitrate (mg/L nitrogen), range 0.07 - 0.37, average 0.14, and No under MCL VIOLATION for the 2025 row. This is reported annual-report evidence. It is not a present-day compliance, advisory, safety, address-level, or household-tap 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 NEW YORK CITY SYSTEM. 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.

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 Nitrate from physical PDF pages 13 and 14. Other report content is not reproduced.
  • Address-level service can vary. Confirm the serving provider with a bill, account portal, utility, city, or state source.
  • Valhalla appears only as an administrative address in identity data. It is not locality, provider, or service evidence.
  • The linked official service-disruption, contact, report, provider, and state pages can change after July 30, 2026. Check those paths for current instructions; this profile does not claim that no active notice exists.
  • Annual-report values and printed No fields describe 2025 rows. They are not a live compliance feed, advisory determination, household-tap result, or safety 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 NEW YORK CITY SYSTEM summarizes a past reporting period. It is not a live alert page.

Utility reportReport data updated:

2025 Drinking Water Supply and Quality Report

Open 2025 water quality report

The 2025 report link is available for NEW YORK CITY SYSTEM. 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
New York City 2025 Drinking Water Supply and Quality Report
Source URL
Open report source
Source retrieved
2026-07-30
Last reviewed
2026-07-30

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
New York
County context
Not listed in current record

Local Context

City and state context for this system

NEW YORK CITY SYSTEM is linked here to New York 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
New York
County context
Not listed in current record
State context
New York

Related Explainers

Related contaminants and guides

Use these explainers with NEW YORK CITY SYSTEM's report year, source table, and official report. Links are limited to existing guide and contaminant pages.

Metals and inorganic chemicals

Nitrate

Nitrate is a regulated inorganic contaminant. Report labels often specify that the result is measured as nitrogen, and that basis must remain attached to the value and unit.

Read the Nitrate contaminant guide

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

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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.

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