Public water system profile

CITY OF FRESNO

Explore available public water records for CITY OF FRESNO (PWSID CA1010007). 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 CITY OF FRESNO (PWSID CA1010007). Read it with the source links and limitations below.

Last updated: Data reviewed:

System identity

PWSID
CA1010007
State
California
Linked communities
Fresno
County context
Not listed in current record
System type
Community water system
Source water
Groundwater and surface water
Population served
Not listed in current record
Service connections
Not listed in current record
Latest reviewed report
2025 report link found
Data updated
2026-07-22

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 CITY OF FRESNO. 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 CITY OF FRESNO
Substance and testing periodReported valueRange in reportLimit or standardSource tableReport-printed status
Arsenic (As)Testing period: 20253.15 ug/LFresno AverageND-5.1MCL: 10; PHG (MCLG): 0.004Table 1: Primary Standards and Unregulated ContaminantsPage 10Typical source, as printed: Erosion of natural deposits; runoff from orchards; glass and electronics production wastesMCL Violation: NO, as printed for this report period
Barium (Ba)Testing period: 20250.04 mg/LFresno AverageND-0.08MCL: 1; PHG (MCLG): 2Table 1: Primary Standards and Unregulated ContaminantsPage 10Typical source, as printed: Discharges of oil drilling wastes and from metal refineries; erosion of natural depositsMCL Violation: NO, as printed for this report period

Report row

Arsenic (As)

Range in report
ND-5.1 ug/L
Fresno Average
3.15 ug/L
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 10; PHG (MCLG): 0.004
Report-printed status
MCL Violation: NO, as printed for this report period

Source · Page 10

Table 1: Primary Standards and Unregulated Contaminants

Typical source, as printed: Erosion of natural deposits; runoff from orchards; glass and electronics production wastes

Report row

Barium (Ba)

Range in report
ND-0.08 mg/L
Fresno Average
0.04 mg/L
Testing period
2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCL: 1; PHG (MCLG): 2
Report-printed status
MCL Violation: NO, as printed for this report period

Source · Page 10

Table 1: Primary Standards and Unregulated Contaminants

Typical source, as printed: Discharges of oil drilling wastes and from metal refineries; erosion of natural deposits

Source report notes

Source: City of Fresno 2025 Annual Water Quality Report. Retrieved 2026-07-19.

  • Applies to: Arsenic (As)

    The printed NO applies only to this 2025 Arsenic row and is not a current compliance, advisory, safety, or tap-level conclusion.

  • Applies to: Barium (Ba)

    The printed NO applies only to this 2025 Barium 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 CITY OF FRESNO. 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 Arsenic and Barium from the 2025 Inorganic Contaminants section. Each printed NO is limited to its report-period row and is not a current system-wide compliance, advisory, safety, or tap-level conclusion.
  • The report's other regulated and unregulated results, source context, treatment material, definitions, notices, health language, and footnotes are not reproduced.
  • No population figure is published here because reviewed official sources use different scopes that require separate reconciliation.
  • Official provider and state links are supplied without claiming that no active advisory or other material notice exists. Those sources can change after review.
  • The Fresno relationship supports navigation only and does not prove exclusive coverage or 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 CITY OF FRESNO summarizes a past reporting period. It is not a live alert page.

Utility reportReport data updated:

2025 Annual Water Quality Report

Open 2025 water quality report

The 2025 report link is available for CITY OF FRESNO. 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 Fresno 2025 Annual Water Quality Report
Source URL
Open report source
Source retrieved
2026-07-19
Last reviewed
2026-07-19

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
Fresno
County context
Not listed in current record

Local Context

City and state context for this system

CITY OF FRESNO is linked here to Fresno 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
Fresno
County context
Not listed in current record
State context
California

Related Explainers

Related contaminants and guides

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

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.

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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.

Data methodology

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

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Data limitations

See why limited records, missing fields, and current notices need careful interpretation.

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