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Download TCEQ Data

Raw data available for download in ascii, Excel, and other formats. Includes geospatial data.

Air Quality
Water Quality
Permitting and Compliance
General Geospatial

Air Quality

Texas Air Monitoring Information System (TAMISWeb)
Generate and download predefined reports containing air quality data and associated information stored in the TAMIS database.

GeoTAM Viewer
The Geographical Texas Air Quality Monitoring viewer can access information about air quality monitors, view and print maps of areas of interest, and obtain details about selected air monitors and their surrounding area.

Point Source Emissions Inventory
Download site-level summary emissions data.

TexAER (Texas Air Emissions Repository)
Access TexAER to create, export, and print reports on non-point air emissions inventories from on-road mobile, non-road mobile, biogenic, and area sources. TexAER contains historical, current, and projected future case emissions inventory data, as well as control strategy information. You can customize your report to include specific locations, source classification codes (SCCs), time periods, units of measure, and other parameters.

Effects Screening Level Lists Used in the Review of Air Permitting Data
Download previous and current effects screening levels (ESL) lists used in the review of air permitting data, and sign up to receive ESL-related announcements.

Daily Maximum Eight-Hour Ozone Averages
Maximum eight-hour ozone averages measured daily from yesterday back to 1997.

Eight-Hour Ozone High Value Days
Averages that meet or exceed 85 parts per billion ozone. Data available from one hour ago back to 1997.

Four Highest Eight-Hour Ozone Concentrations
Calculated from TCEQ monitoring site data available from today back to 1997.

High One-Hour Ozone Values
Measurements of high one-hour ozone concentrations.

Peak Daily One-Hour Ozone Averages
Maximum one-hour ozone averages measured daily from yesterday back to 1996.

Texas Cities' Compliance with Eight-Hour Ozone Standard
Report for the fourth highest daily maximum eight-hour average ozone concentrations in Texas Metropolitan areas.

AERMOD Meteorological Data Sets for Refined Screening
Links to background information and new zip files containing one-year and five-year meteorological data sets for each county for use with AERMOD.

Meteorological Data Sets by County for use with ISCST3 and ISC-Prime
Data sets that are listed by county, showing meteorological conditions.

Historical Pollutant and Weather Data
Air pollution and meteorological data from the TCEQ, local Texas monitoring networks, and the EPA since 1972.

TexAQS II Field Study: Data
Technical data collected by the TexAQS II Field Study for analysis in determination of its findings.


Municipal Solid Waste Facilities
Download Microsoft Excel files containing data on MSW facilities from TCEQ databases.

Water Quality

Hydrology Layers
Links to geospatial data layers relating to water or hydrology.

Hydrography Maps and Data
Links to the Atlas of Texas Surface Waters, data for Level 4 ecoregions, GIS data for classified segments, and other hydrology data layers for use in ArcGIS. Statewide hydrography maps and map-based viewers for surface water information.

Sampling Data Query, Surface Water Quality Monitoring
Includes queries and metadata for accessing surface water quality monitoring data for Texas.

Surface Water Quality Monitoring Information System
Select TCEQ monitoring stations to view and optionally download sample data.

Groundwater Conservation Districts
Locally governed districts for the management of groundwater supplies, with limited management planning oversight by the Groundwater Planning and Assessment Team. Map, contact list, and other useful links.

Finding Information about Water Wells in Texas
Links to resources that can help you locate information on water wells.

TCEQ Land Use / Land Cover Layers
Land use/land cover spatial data layers in ArcView Shapefile format. Includes information on Edwards Aquifer, Arroyo Colorado, and Brazos Colorado.

Permitting and Compliance

Central Registry Dataset
A list of all permits and registrations, refreshed monthly. Includes only permit numbers by site, facility name, physical location, and description of business.

Compliance History
Download current list of compliance histories or search the compliance history database.

New Source Review and Federal Air Operating Permits, and Emissions Cap and Trade
Includes both pending and completed permits.

Water Rights Database and Related Files
Data from all active and inactive surface water rights permits and water supply contracts.

Industrial and Hazardous Waste (IHW) Datasets
Texas Solid Waste Activity statewide files from TRACs IHW system.

Petroleum Storage Tank (PST) Datasets
Information associated with the PST facility data with optional tank data.

Dry Cleaners Dataset
Statewide current dry cleaner site owners listing, refreshed quarterly. Lists name, location of business and contact information.

Licensed Irrigators
Monthly lists of landscape irrigators that either have taken an exam or whose licenses have expired.

General Geospatial

Site Layers
Download site layers.

TCEQ Regulatory/Administrative Boundaries
GIS layers in ArcView Shapefile format that detail regulatory/administrative boundaries of the TCEQ.


Active TCEQ Contracts for $100,000 or Greater
Monthly report required by the legislature.

TERP Grant Summary Reports
Information on projects funded to date.

TCEQ Data Clearinghouse

Data not available online?

See standard and customized data and reports available for purchase from the TCEQ and how to request them.


TCEQ Toxicology
Toxicology is used to help us make scientifically sound decisions when developing environmental regulation and policy.