An official website of the United States government. Here's how you knowHere's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Latest Earthquake | Chat Share
Cassi Crow is a hydrologist and Water Quality Specialist with the USGS in San Antonio, TX.
Formerly Cassi L Otero
Cassi started her career with the USGS in 1997 as a student working with the NAWQA program. Her interests include water-quality and sediment-quality studies.
B.S. Geology - 1999, University of Texas at San Antonio
M.S. Geology (emphasis in Hydrology) - 2004, University of Texas at San Antonio