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Sara LeAnn (Caldwell) Eldridge

I am a Microbiologist in the Studies Section.

I started with the USGS New Mexico Water Science Center in 2003 as a student studying Earth Science with an emphasis on subsurface (groundwater) microbiology. After receiving an MS in Biology in 2009, I worked as a Hydrologic Technician and later, Microbiologist, with the Oregon Water Science Center, Klamath Falls Field Station. In Oregon, I worked primarily on monitoring the frequent cyanobacteria blooms and associated toxins (“HABs”) and environmental parameters in Upper Klamath Lake. In 2018, I transferred to the Wyoming-Montana Water Science Center, and I am now building a microbiology/microbial ecology program and supporting water-quality studies throughout Montana and Wyoming.


Professional Experience

  • Microbiologist, USGS, Dec 2013-present

  • Hydrologist, USGS, Jan 2010-Dec 2013

  • Hydrologic Technician, USGS, April 2009-Jan 2010

  • Graduate Research Assistant, Portland State University, Sept 2005-April 2009

  • Hydrologic Technician, USGS, Jan 2003-June 2005

Education and Certifications

  • M.S. Biology, Portland State University, 2009

  • B.S. Earth and Planetary Sciences (Magna Cum Laude), University of New Mexico, 2005

  • B.S. Zoology (Summa Cum Laude), Texas State University, 1997

Science and Products

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.