New supervisors for the North Texas Ecology, Gulf Coast Studies, and North Texas Hydrology and Hydraulics sections

Chris Churchill began his career with the USGS in January 2009 in the Fort Worth Branch Office as a student intern while working on his Ph.D. at the University of North Texas. For his Doctorate, he studied aquatic ecology, invasion ecology, and aquatic toxicology. He graduated in December 2013 and began working full-time.  During his career with the USGS, Chris has served as Project Chief on multi-disciplinary projects with biological and water-quality components including a state-wide methods assessment for cyanobacteria, cyanotoxins, and taste-and-odor compounds and a long-term, state-wide zebra mussel early-detection and monitoring program. 

John Ellis began his USGS career in 2014 at the Oklahoma Water Science Center leading a hydrologic investigation of the Canadian River alluvial aquifer.  Subsequent projects focused on integrated surface water and groundwater resources, running modeling simulations, and evaluating the impacts of future climate variability on aquifer and reservoir storage.   As the new Gulf Coast Branch Studies Chief, John works with a variety of cooperators to investigate issues related to water quality, land subsidence, and groundwater level changes.

Jon Thomas began his career with the USGS in March of 2008 as a student in the San Angelo Field Office.  He worked as geophysicist in San Angelo until transferring to the North Texas Branch office in 2010. During his career with the USGS, Jon has served as Project Chief for several studies and borehole geophysics lead for TXWSC.  As the borehole geophysics lead, Jon planned and conducted various geophysical studies across the state and country from California to Massachusetts. In addition to geophysical studies, Jon has worked on conceptual model development at multiple locations.  

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