Public water system profile

GRANTS PASS, CITY OF

Explore available public water records for GRANTS PASS, CITY OF (PWSID OR4100342). 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 GRANTS PASS, CITY OF (PWSID OR4100342). Read it with the source links and limitations below.

Last updated: Data reviewed:

System identity

PWSID
OR4100342
State
Oregon
Linked communities
Grants Pass
County context
Not listed in current record
System type
Community water system
Source water
Surface water from the Rogue River.
Population served
Not listed in current record
Service connections
Not listed in current record
Latest reviewed report
2025 report link found
Data updated
2026-08-08

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 GRANTS PASS, CITY OF. 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 GRANTS PASS, CITY OF
Substance and testing periodReported valueRange in reportLimit or standardSource tableReport-printed status
Total Trihalomethanes (TTHMs)Testing period: 2025 monitoring period36.3 ppbLocational Running Annual Average24.9 - 49.1MCL: 80Disinfection By-ProductsPage 4Source table has no violation or compliance column.
Haloacetic Acids (HAA5s)Testing period: 2025 monitoring period40.8 ppbLocational Running Annual Average21.4 - 72.6MCL: 60Disinfection By-ProductsPage 4Source table has no violation or compliance column.

Report row

Total Trihalomethanes (TTHMs)

Range in report
24.9 - 49.1 ppb
Locational Running Annual Average
36.3 ppb
Testing period
2025 monitoring period
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 80
Report-printed status
Source table has no violation or compliance column.

Source · Page 4

Disinfection By-Products

Report row

Haloacetic Acids (HAA5s)

Range in report
21.4 - 72.6 ppb
Locational Running Annual Average
40.8 ppb
Testing period
2025 monitoring period
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 60
Report-printed status
Source table has no violation or compliance column.

Source · Page 4

Disinfection By-Products

Source report notes

Source: City of Grants Pass 2025 Water Quality Report. Retrieved 2026-08-08.

  • Applies to: Total Trihalomethanes (TTHMs)

    3 ppb, range 24.9 - 49.1 ppb, MCL 80 ppb, MCLG 0. The source table has no violation or compliance column, so no status is inferred from the reported value or range. Annual-report values and printed flags describe only the cited report period. A range endpoint is not the compliance statistic. These fields are not a current compliance feed, advisory determination, address-level result, household-tap result, exposure conclusion, or safety conclusion. The reviewed relationship does not identify the provider for an address or prove exclusive service.

  • Applies to: Haloacetic Acids (HAA5s)

    8 ppb, range 21.4 - 72.6 ppb, MCL 60 ppb, MCLG 0. The report distinguishes the range endpoint from the locational running annual average and says no violation occurred during the report period. The source table has no violation or compliance column, so no status is inferred from the reported value or range. Annual-report values and printed flags describe only the cited report period. A range endpoint is not the compliance statistic. These fields are not a current compliance feed, advisory determination, address-level result, household-tap result, exposure conclusion, or safety conclusion. The reviewed relationship does not identify the provider for an address or prove exclusive service.

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 GRANTS PASS, CITY OF. 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 highest 2025 locational running annual average candidate for TTHM and HAA5.
  • The 72.6 ppb HAA5 range endpoint, 40.8 ppb locational running annual average, report-period no-violation statement, and later OHA DBP context remain distinct.
  • The Rogue River statement is annual system-level context and does not establish the source serving an address.
  • The official source supports the municipal water role shown here, but it does not prove exclusive coverage or the provider for every Grants Pass address.
  • OHA and provider paths were reviewed on August 8, 2026. These mutable observations do not establish that every relevant notice was found or that no notice exists.
  • Annual-report values, printed flags, alerts, violations, public notices, contact reports, and advisories are distinct source types and must not be collapsed into one current-status statement.
  • 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 GRANTS PASS, CITY OF summarizes a past reporting period. It is not a live alert page.

Utility reportReport data updated:

City of Grants Pass 2025 Water Quality Report

Open 2025 water quality report

The 2025 report link is available for GRANTS PASS, CITY OF. 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 Grants Pass 2025 Water Quality Report
Source URL
Open report source
Source retrieved
2026-08-08
Last reviewed
2026-08-08

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
Grants Pass
County context
Not listed in current record

Local Context

City and state context for this system

GRANTS PASS, CITY OF is linked here to Grants Pass 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
Grants Pass
County context
Not listed in current record
State context
Oregon

Related Explainers

Related contaminants and guides

Use these explainers with GRANTS PASS, CITY OF's report year, source table, and official report. Links are limited to existing guide and contaminant pages.

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Corrections

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Evidence

Official sources and report links

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Data methodology

Review source hierarchy, missing-data handling, and record limitations.

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Data limitations

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