System Snapshot
Available system-level context
This snapshot shows the identity and context fields currently available for REGIONAL WATER AUTHORITY (PWSID CT0930011). Read it with the source links and limitations below.
System identity
- PWSID
- CT0930011
- State
- Connecticut
- Linked communities
- New Haven
- County context
- Not listed in current record
- System type
- Community water system
- Source water
- Surface water listed as primary source
- Population served context
- 418,900
- Service connections
- 115,707
- Latest reviewed report
- 2025 report link found
- Data updated
- 2026-07-29
Connecticut DPH's current reviewed schedule lists 418,900 people and 115,707 combined service connections for PWSID CT0930011. New Haven is among the towns served; that list does not prove 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 REGIONAL WATER AUTHORITY. 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
| Substance and testing period | Reported value | Range in report | Limit or standard | Source table | Report-printed status |
|---|---|---|---|---|---|
| ChlorineTesting period: 2025 | 1.5 ppmAverage | 0.12–2.6 | MRDL 4 ppm; MRDLG 4 ppm | Systemwide Levels of Regulated ContaminantsPage 11Typical source, as printed: Water additive used to control microbes | Met Regulatory Standards: Yes, as printed for this sample period |
| BariumTesting period: 2025 | 0.076 ppmAverage | 0.005–0.272 | MCL 2 ppm; MCLG 2 ppm | Systemwide Levels of Regulated ContaminantsPage 11Typical source, as printed: Erosion of natural deposits | Met Regulatory Standards: Yes, as printed for this sample period |
Report row
Chlorine
- Range in report
- 0.12–2.6 ppm
- Average
- 1.5 ppm
- Testing period
- 2025
- Sites above action level
- Not applicable to this summarized entry
- Limit or standard
- MRDL 4 ppm; MRDLG 4 ppm
- Report-printed status
- Met Regulatory Standards: Yes, as printed for this sample period
Report row
Barium
- Range in report
- 0.005–0.272 ppm
- Average
- 0.076 ppm
- Testing period
- 2025
- Sites above action level
- Not applicable to this summarized entry
- Limit or standard
- MCL 2 ppm; MCLG 2 ppm
- Report-printed status
- Met Regulatory Standards: Yes, as printed for this sample period
Source report notes
Source: Regional Water Authority 2025 Water Quality Report. Retrieved 2026-07-29.
- Applies to: Chlorine, Barium
reported transcription from page 11. The printed Yes status is scoped to this 2025 sample-period row and is not a 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 REGIONAL WATER AUTHORITY. 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 Chlorine and Barium from the 2025 annual report. It is not a complete contaminant table or current condition summary.
- The report prints Met Regulatory Standards: Yes for the two preview rows. That wording remains scoped to each 2025 sample-period row and is not presented as current compliance, safety, or advisory status.
- The official report establishes the provider and report-period context but does not visibly print CT0930011. The current Connecticut DPH schedule supplies the exact PWSID binding.
- Address-level service can vary. Confirm the serving provider with a bill, account portal, utility, city, or state source.
- Official CodeRED and newsroom paths are provided for newer information. This profile does not assert whether a notice or advisory is currently active.
- 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 REGIONAL WATER AUTHORITY summarizes a past reporting period. It is not a live alert page.
2025 Water Quality Report
Open 2025 water quality report (opens in a new tab)The 2025 report link is available for REGIONAL WATER AUTHORITY. 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
- Regional Water Authority 2025 Water Quality Report
- Source URL
- Open report source
- Source retrieved
- 2026-07-29
- Last reviewed
- 2026-07-29
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
- New Haven
- County context
- Not listed in current record
Local Context
City and state context for this system
REGIONAL WATER AUTHORITY is linked here to New Haven 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 Haven
- County context
- Not listed in current record
- State context
- Connecticut
Browse related context
County context is shown as a field when it appears in the current record. County pages are not currently available on this site.
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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Official sources and report links
Use official federal, state, utility, or report sources before treating a page as final.
Utility website
Data methodology
Review source hierarchy, missing-data handling, and record limitations.
View Data methodologyData limitations
See why limited records, missing fields, and current notices need careful interpretation.
View Data limitations