Public water system profile

AQUARION-STAMFORD

Explore available public water records for AQUARION-STAMFORD (PWSID CT1350011). 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.

View report rows

System Snapshot

Available system-level context

This snapshot shows the identity and context fields currently available for AQUARION-STAMFORD (PWSID CT1350011). Read it with the source links and limitations below.

Last updated: Data reviewed:

System identity

PWSID
CT1350011
State
Connecticut
Linked communities
Stamford
County context
Not listed in current record
System type
Community water system
Source water
Surface water listed as the primary source
Population served context
119,214
Service connections
21,259
Latest reviewed report
2025 report link found
Data updated
2026-07-13

Connecticut DPH's reviewed schedule lists 119,214 people and 21,259 combined service connections for PWSID CT1350011. It also lists Darien, Greenwich, and Stamford among the towns served; those rows do not prove service for a particular address or align the service area with city boundaries.

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 AQUARION-STAMFORD. 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 AQUARION-STAMFORD
Substance and testing periodReported valueRange in reportLimit or standardSource tableReport-printed status
Lead - action level at consumer tapsTesting period: 2024Sites above action level2ND < 1 ppb90th percentile valueND < 1 - 3AL: 15; MCLG: 0Water Quality TablePage 3Typical source, as printed: Corrosion of household plumbing systemsCompliance: Yes, as printed for this sample period
Copper - action level at consumer tapsTesting period: 2024Sites above action level00.17 ppm90th percentile value0.02 - 0.27AL: 1.3; MCLG: 1.3Water Quality TablePage 3Typical source, as printed: Corrosion of household plumbing systemsCompliance: Yes, as printed for this sample period

Report row

Lead - action level at consumer taps

Range in report
ND < 1 - 3 ppb
90th percentile value
ND < 1 ppb
Testing period
2024
Sites above action level
2
Limit or standard
AL: 15; MCLG: 0
Report-printed status
Compliance: Yes, as printed for this sample period

Source · Page 3

Water Quality Table

Typical source, as printed: Corrosion of household plumbing systems

Report row

Copper - action level at consumer taps

Range in report
0.02 - 0.27 ppm
90th percentile value
0.17 ppm
Testing period
2024
Sites above action level
0
Limit or standard
AL: 1.3; MCLG: 1.3
Report-printed status
Compliance: Yes, as printed for this sample period

Source · Page 3

Water Quality Table

Typical source, as printed: Corrosion of household plumbing systems

Source report notes

Source: Aquarion Water Company 2025 Stamford Annual Water Quality Report. Retrieved 2026-07-13.

  • Applies to: Lead - action level at consumer taps

    Source table row and footnote from PDF pages 3-4. Compliance: Yes and two locations above the action level are preserved together for the 2024 row without a current compliance or household-water conclusion.

  • Applies to: Lead - action level at consumer taps

    Table note: 90th percentile value in lead monitoring. Two locations exceeded the action level for lead. Highest 90th percentile value shown.

  • Applies to: Copper - action level at consumer taps

    Source table row and footnote from PDF pages 3-4. Compliance: Yes is preserved only for this 2024 action-level row; no current compliance or household-level plumbing claim is inferred.

  • Applies to: Copper - action level at consumer taps

    Table note: 90th percentile value in copper monitoring. No locations exceeded the action level for copper. Highest 90th percentile value shown.

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 AQUARION-STAMFORD. 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 the 2024 Lead and Copper action-level rows from the 2025 annual report. The source prints Compliance: Yes for both rows, while also stating that two Lead locations and zero Copper locations exceeded the applicable action levels. Those statements are preserved together and do not establish current conditions at a particular tap.
  • The 2025 report extraction accounts for all 21 result rows. This system preview intentionally remains limited to the 2024 Lead and Copper action-level rows and is not a violation inventory or current-notice check.
  • Annual-report status text is limited to the row sample period. The Aquarion alerts-and-outages page is the official current path, but its embedded widget does not support a dependable claim that an alert is or is not active.
  • Connecticut DPH lists Darien, Greenwich, and Stamford among the towns served. The Stamford relationship supports navigation only and does not prove the provider for every address.
  • Address-level service can vary. Confirm the serving provider with a bill, account portal, utility, city, or state source.
  • 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 AQUARION-STAMFORD summarizes a past reporting period. It is not a live alert page.

Utility reportReport data updated:

2025 Annual Water Quality Report for AQUARION-STAMFORD

Open 2025 water quality report

The 2025 report link is available for AQUARION-STAMFORD. 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
Aquarion Water Company 2025 Stamford Annual Water Quality Report
Source URL
Open report source
Source retrieved
2026-07-13
Last reviewed
2026-07-13

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
Listed from reviewed source
City context
Stamford
County context
Not listed in current record

Local Context

City and state context for this system

AQUARION-STAMFORD is linked here to Stamford 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
Stamford
County context
Not listed in current record
State context
Connecticut

Related Explainers

Related contaminants and guides

Use these explainers with AQUARION-STAMFORD's report year, source table, and official report. Links are limited to existing guide and contaminant pages.

Metals and inorganic chemicals

Lead

Lead is regulated through a treatment technique and tap-sampling action-level framework. A report row does not describe every tap or identify a home's plumbing.

Read the Lead contaminant guide

Metals and inorganic chemicals

Copper

Copper is regulated with lead under a treatment-technique and tap-sampling action-level framework. Plumbing and corrosion control can influence results.

Read the Copper contaminant guide

How to look up your drinking water system

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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