Public water system profile

GREEN BAY WATERWORKS

Explore available public water records for GREEN BAY WATERWORKS (PWSID 40503562). 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.

System Snapshot

Available system-level context

This snapshot shows the identity and context fields currently available for GREEN BAY WATERWORKS (PWSID 40503562). Read it with the source links and limitations below.

Last updated: Data reviewed:

System identity

PWSID
40503562
State
Wisconsin
Linked communities
Green Bay
County context
Not listed in current record
System type
Community water system
Source water
Surface water from Lake Michigan, with eight backup wells for emergency use only
Population served
Not listed in current record
Service connections
Not listed in current record
Latest reviewed report
2025 report link found
Data updated
2026-08-03

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 GREEN BAY WATERWORKS. 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 GREEN BAY WATERWORKS
Substance and testing periodReported valueRange in reportLimit or standardSource tableReport-printed status
TTHM Site D9Testing period: 202528.0 ppbDetected Level18.6–48.6MCL: 80; MCLG: 0Disinfection ByproductsPage 4Typical source, as printed: By-product of drinking water chlorinationSource table has no violation or compliance column.
HAA5 Site D9Testing period: 20259.2 ppbDetected Level6.6–14.0MCL: 60; source-printed MCLG: 60Disinfection ByproductsPage 4Typical source, as printed: By-product of drinking water chlorinationSource table has no violation or compliance column.

Report row

TTHM Site D9

Range in report
18.6–48.6 ppb
Detected Level
28.0 ppb
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 80; MCLG: 0
Report-printed status
Source table has no violation or compliance column.

Source · Page 4

Disinfection Byproducts

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

Report row

HAA5 Site D9

Range in report
6.6–14.0 ppb
Detected Level
9.2 ppb
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 60; source-printed MCLG: 60
Report-printed status
Source table has no violation or compliance column.

Source · Page 4

Disinfection Byproducts

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

Source report notes

Source: Green Bay Water Utility 2025 Annual Drinking Water Report. Retrieved 2026-08-03.

  • Applies to: TTHM Site D9

    0, row-local range 18.6–48.6, MCLG 0, and MCL 80. D9 has the highest printed TTHM Detected Level, but this row is not a synthesized cross-site range or complete distribution summary. The table prints no row-level violation field. Annual-report values and printed status describe only the cited 2025 report period. They are not a live compliance feed, advisory determination, address-level result, household-tap result, exposure finding, or safety conclusion.

  • Applies to: HAA5 Site D9

    2, row-local range 6.6–14.0, source-printed Goal MCLG 60, and MCL 60. D9 has the highest printed HAA5 Detected Level. The unusual HAA5 MCLG 60 is preserved literally and flagged without correction. The table prints no row-level violation field. Annual-report values and printed status describe only the cited 2025 report period. They are not a live compliance feed, advisory determination, address-level result, household-tap result, exposure finding, 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 GREEN BAY WATERWORKS. 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 system preview shows only the D9 TTHM and HAA5 rows from physical PDF page 4. The complete report extraction separately retains the D15, D17, and D22 rows and all other report result rows without expanding the system preview.
  • D9 TTHM preserves Detected Level 28.0 ppb and row-local range 18.6–48.6. D9 HAA5 preserves Detected Level 9.2 ppb and row-local range 6.6–14.0. No cross-site range or complete distribution summary is synthesized.
  • The source-printed HAA5 Goal MCLG 60 is unusual and is preserved literally without correction or normalization.
  • Address-level service can vary. Confirm the serving provider with a bill, account portal, utility, city, or state source.
  • The old 2007 state fields conflict with completed underlying records and lack current utility corroboration. They are not converted into a live advisory, present-day noncompliance, or resolution claim.
  • The utility flushing path is operational context, not a health advisory. Contradictory PFAS web prose is excluded from public claims.
  • The reviewed Green Bay relationship is nonexclusive and does not identify the provider for an address.
  • 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 GREEN BAY WATERWORKS summarizes a past reporting period. It is not a live alert page.

Utility reportReport data updated:

Green Bay Water Utility 2025 Annual Drinking Water Report

Open 2025 water quality report (opens in a new tab)

The 2025 report link is available for GREEN BAY WATERWORKS. 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
Green Bay Water Utility 2025 Annual Drinking Water Report
Source retrieved
2026-08-03
Last reviewed
2026-08-03

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
Green Bay
County context
Not listed in current record

Local Context

City and state context for this system

GREEN BAY WATERWORKS is linked here to Green Bay 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
Green Bay
County context
Not listed in current record
State context
Wisconsin

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.

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