Important Links

The Center for Advances in Water and Air Quality (CAWAQ) promotes understanding of critical environmental issues and develops solutions for mitigating challenges in water and air quality faced by industries and global community through research, educational programs, and community outreach.

Today's Texas Air Quality Forecast

The latest forecast for air quality conditions in Texas' metropolitan areas...more

AirData – Access to monitored Air quality data from EPA’s Air Quality System (AQS) Data Mart

The AirData website gives you access to air quality data collected at outdoor monitors across the United States, Puerto Rico, and the U. S. Virgin Islands. The data comes primarily from the AQS (Air Quality System) database. AirData lets you display and download monitored hourly, daily, and annual concentration data, AQI data, and speciated particle pollution data...more

Download TCEQ Rules

Download the TCEQ's current chapters in Adobe Portable Document Format (PDF) or the official version in HTML format...more

EPA Laws and Executive Orders

A number of laws serve as EPA's foundation for protecting the environment and public health. However, most laws do not have enough detail to be put into practice right away...more

Coastal Environmental Protection

Coastal environmental protection is an integral part of the Texas General Land Office mission. The agency addresses coastal environmental damage both proactively and reactively, through efforts such as educating the public to change bad habits, and cleaning up messes caused by others....more

The Hydraulic Fracturing Water Cycle

Recently, some companies have begun recycling wastewater from previous hydraulic fracturing activities, rather than acquiring water from ground or surface resources. Ground water is the supply of fresh water found beneath the Earth’s surface, usually in aquifers, which supply wells and springs. It provides a major source of drinking water...more

Health & Environmental Research Online (HERO)

The Health and Environmental Research Online (HERO) database provides an easy way to access and influence the scientific literature behind EPA science assessments.....more

Texas Emissions Reduction Plan (TERP)

The TERP program provides financial incentives to eligible individuals, businesses, or local governments to reduce emissions from polluting vehicles and equipment.....more

Hows my waterway? Find information about local waters

Learn the condition of local streams, lakes and other waters anywhere in the US... quickly and in plain language. See if your local waterway was checked for pollution, what was found, and what is being done. The source of this information is a US Environmental Protection Agency (EPA) database of State water quality monitoring reports provided under the Clean Water Act...more

Am I Regulated? Water Rights in Texas

What is state water? How is it regulated in Texas? Who needs a permit to use it? Find out how to apply to use state water or to change the ownership or authorizations of an existing water right...more

TCEQ - Water Quality Program Successes

The TCEQ is constantly improving its activities to monitor, evaluate, and protect our natural waters. The page highlights successful strategies employed for preserving and improving the quality of rivers, lakes, and bays...more

Texas State Implementation Plan

The Texas State Implementation Plan (SIP) is the state’s comprehensive plan to clean the air and meet federal air quality standards...more

Implementing the Surface Water Quality Standards in Permitting

The TCEQ is responsible for maintaining and enhancing water quality in the state. One aspect of that responsibility involves implementation of theTexas Surface Water Quality Standards when issuing permits for wastewater discharges to surface waters of the state. The TCEQ issues wastewater permits under a program called the Texas Pollutant Discharge Elimination System (TPDES)....more

Texas Integrated Report of Surface Water Quality

The Texas Integrated Report describes the status of Texas’ natural waters based on historical data. It assigns waterways to various categories depending on the extent to which they attain the Texas Surface Water Quality Standards, which were developed to define water quality and the criteria for which that quality is measured....more

National Contaminant Occurrence Database (NCOD)

EPA developed the NCOD to satisfy the statutory requirements set by Congress in the 1996 amendments to the Safe Drinking Water Act (SDWA) to maintain a national drinking water contaminant occurrence database using samples data for both regulated and unregulated contaminants in public water systems.....more

Greenhouse Gas Emissions

Learn about the four most important greenhouse gases-carbon dioxide, methane, nitrous oxide, and fluorinated gases-and options for reducing emissions. Learn about the main human activities that add greenhouse gases to our atmosphere and opportunities to reduce emissions from these sources.....more