TEXAS SURFACE WATER RESOURCES

Find Texas surface-water information.

A practical starting point for water quality maps, monitoring records, and assessment reports from the agencies that maintain them.

Choose the information you need

Surface-water monitoring brings together chemical measurements, physical conditions, and observations of aquatic life. The resources below help you find the underlying data and understand how Texas waters are assessed.

Find maps & data →View water quality reports →

Field team sorting aquatic samples on the banks of the Rio Grande — Sorting aquatic samples on the Rio Grande. Source: TCEQ.

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Monitoring • Data • Assessment

Maps & water quality data

Locate water bodies and monitoring stations, then open the official data viewer.

Explore maps → 02

Continuous monitoring

Find station information, river-basin links, and preliminary monitoring records.

Find monitoring records → 03

Water quality reports

Open the Texas Integrated Report and the state's impaired-water information.

Read assessment reports → 04

Methods & guidance

Find sampling procedures, data-management guidance, and field forms.

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