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The U.S. Geological Survey

The USGS is the Nation's largest earth-science agency. The USGS is involved with investigating the Nation's water resources, performing geologic studies, producing geography, and studying our biological resources.

The Environmental Protection Agency (EPA)

The mission of the EPA is to protect human health and the environment. Since 1970, EPA has been working for a cleaner, healthier environment for the American people. EPA has Web sites about water and Resources in Spanish.

About La Ciencia del Agua para Escuelas

This Web site is a translation of the USGS Water Science for Schools Web site, and is a result of a cooperative project between the USGS and EPA. We would like to acknowledge Maria Luisa Murillo with Cima Technologies, El Paso, Texas for the translation services. Also, Mr. Angel Martin, Sr. volunteered his time and energy to review these Web pages.