Maps & water quality data

Use the official tools to locate a Texas water body, identify a monitoring station, or retrieve water quality records.

Start with a map

The Surface Water Quality Segments Viewer shows monitored stream segments, water bodies, stations, and impairment information. The reporting tool provides access to station records.

Surface Water Quality Segments ViewerFind a monitored water body or segment on the official TCEQ map.Surface Water Quality Web Reporting ToolLocate monitoring stations and access records in the TCEQ reporting application.

Official sources

TCEQ map and viewer guidance ↗ · Surface Water Quality Monitoring ↗