Public water system profile

City of Seguin

Explore available public water records for City of Seguin (PWSID TX0940002). 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 Seguin (PWSID TX0940002). Read it with the source links and limitations below.

Last updated: Data reviewed:

System identity

PWSID
TX0940002
State
Texas
Linked communities
Seguin
County context
Not listed in current record
System type
Community water system
Source water
Surface and groundwater
Population served context
32,736
Service connections
Not listed in current record
Latest reviewed report
2025 report link found
Data updated
2026-06-03

Population served is shown only when it appears in the available source records.

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 Seguin. 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
2
Scope
Past reporting period
Report-row preview from the latest reviewed report for City of Seguin
Substance and testing periodReported valueRange in reportLimit or standardSource tableReport-printed status
Nitrate (measured as Nitrogen)Testing period: 4/15/20250.72 ppmHighest Level Detected0 - 0.72MCLG: 10; MCL: 10Inorganic ContaminantsPage 3Typical source, as printed: Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural depositsViolation: N, as printed for this sample period
LeadTesting period: 2023-2025Sites above action level01.45 ppb90th Percentile0-3.38Action Level: 15Lead and Copper (Tested every three years)Page 3Typical source, as printed: Corrosion of household plumbing systems; erosion of natural depositsViolation: N, as printed for this sample period

Report row

Nitrate (measured as Nitrogen)

Range in report
0 - 0.72 ppm
Highest Level Detected
0.72 ppm
Testing period
4/15/2025
Sites above action level
Not applicable to this summarized entry
Limit or standard
MCLG: 10; MCL: 10
Report-printed status
Violation: N, as printed for this sample period

Source · Page 3

Inorganic Contaminants

Typical source, as printed: Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits

Report row

Lead

Range in report
0-3.38 ppb
90th Percentile
1.45 ppb
Testing period
2023-2025
Sites above action level
0
Limit or standard
Action Level: 15
Report-printed status
Violation: N, as printed for this sample period

Source · Page 3

Lead and Copper (Tested every three years)

Typical source, as printed: Corrosion of household plumbing systems; erosion of natural deposits

Source report notes

Source: City of Seguin 2025 Annual Drinking Water Quality Report. Retrieved 2026-08-11.

  • Applies to: Nitrate (measured as Nitrogen), Lead

    Visually reviewed against official PDF page 3. Source-printed values retained without present-day interpretation.

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 Seguin. 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

  • This record is based on official City of Seguin utility and water-quality source paths plus an EPA ECHO SDWIS identity cross-check reviewed on June 3, 2026.
  • The City utilities page notes that some areas within city limits may be served by other public or private utility systems.
  • Population served is from EPA ECHO SDWIS inventory context and does not confirm address-level service.
  • EPA ECHO lists the SDWIS primary source as surface water; City source pages and the 2025 report describe both surface-water sources and groundwater from the Schertz-Seguin well field, so this record keeps the source-water display as surface and groundwater.
  • Address-level service can vary. Confirm the serving provider with a bill, account portal, utility, city, or state source.
  • This page may show summarized entries from available annual reports. It does not include a complete historical contaminant table.
  • 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 Seguin summarizes a past reporting period. It is not a live alert page.

Utility reportReport data updated:

2025 Annual Drinking Water Quality Report

Open 2025 water quality report

The 2025 report link is available for City of Seguin. 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 Seguin 2025 Annual Drinking Water Quality Report
Source URL
Open report source
Source retrieved
2026-08-11
Last reviewed
2026-08-11

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
Not listed in current record
City context
Seguin
County context
Not listed in current record

Local Context

City and state context for this system

City of Seguin is linked here to Seguin 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
Seguin
County context
Not listed in current record
State context
Texas

Related Explainers

Related contaminants and guides

Use these explainers with City of Seguin'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

Nitrate

Nitrate is a regulated inorganic contaminant. Report labels often specify that the result is measured as nitrogen, and that basis must remain attached to the value and unit.

Read the Nitrate contaminant guide

How to look up your drinking water system

Start with a utility bill, PWSID, state lookup tool, or official report so you can find the public water system behind a city or provider name.

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