Daniel Tettenhorst

Dan Tettenhorst began his EPA career in 2010 and is currently a chemist focusing on research and development of analytical chemistry methods, with an emphasis on drinking water and ambient water methods for organic chemical contaminants. He has developed several drinking water methods, including EPA Method 540 for various pesticides and their degradates, EPA Method 544 for microcystins and nodularin, and most recently assisted to update EPA Method 537.1 for perfluorinated alkyl acids. Mr. Tettenhorst was awarded Achievement in Science and Technology Awards in 2014, 2015 and 2017 by the EPA's Office of Water, and a bronze medal from the Office of Research and Development for commendable service related to the Toledo harmful algal bloom incident from 2014. He has a B. S. in chemistry from the University of Cincinnati.

Contact Information: tettenhorst.dan@epa.gov; 513-569-7396