Xiaoli Chen successfully defended his dissertation titled “Factors affecting the streamflow and in-stream nitrate concentration in semi-arid areas: sub-surface flow-generation, vertical distribution of soil nitrate and drainage properties, and the connectivity of impervious areas” on Tuesday, Jan. 3, 2017, and can now answer to the title of Dr. Chen. Xiaoli has been a valuable member of the Tague Team Lab and has greatly contributed to the labs body of research as well as model development.