Professor with grey hair and a dark colored shirt
Professor | Environmental Engineering

Professor Summers’ current focus in teaching, advising and research is on water reuse and sustainability and he is the co-Director of the University of Colorado’s Water Reuse Program. He has been evaluating the treatment of alternative water sources (stormwater, greywater, wastewater effluent and combined sewer overflow) with the use of coagulation, biofiltration and biochar / activated carbon adsorption for the control of specific organic micropollutants, including disinfection by-products (DBPs), and bulk organic matter including DBP precursors. Historically, his areas of expertise are adsorption and biological treatment technologies as applied to natural organic matter, DBPs, trace organic contaminants and taste & odor. For the last 10 years he has researched water treatment technologies for small communities, both domestic and international. Over the last 25 years, Dr. Summers has served as a principal technical consultant to USEPA's regulatory development and review process including; Microbial/Disinfection Byproduct Rule cluster, National Drinking Water Advisory Council Arsenic Cost Working Group, Lead and Cooper Rule and Total Coliform Rule/Distribution System Advisory Committee. He has served on several other national and international advisory panels. In 2016 he presented to the President's Council of Advisors on Science and Technology - Science and Technology of Alternative Water Sources, Washington, DC.  

Professor Summers was Director of the Environmental Engineering Program (EVEN) from 2013 to 2019 and was the coordinator of the graduate Environmental Engineering track in Civil Engineering from 2000 to 2014.

Courses Taught

EVEN 1000 Intro to Environmental Engineering
CVEN 3424 Water and Wastewater Treatment
CVEN 5464 Environmental Engineering Processes
CVEN 5524 Water Treatment
EVEN 6504 Advanced Physical Chemical Treatment 


Ph.D., Stanford University 
Bachelor's & Master's, University of Cincinnati 

Honors & Awards

  • Charles R. O'Melia Distinguished Educator Award, Association of Environmental Engineering and Science Professors, 2020
  • A.P. Black Award, American Water Works Association, 2013
  • University of Colorado CEAE Department
    • Research Award, 2007;
    • Teaching Award, 2009;
    • Student's Favorite Professor Award, 2010;
    • Service Award, 2011;
  • Journal of the American Water Works Association
    • Best Paper Awards, 1990, 1996, 1997, 2016, 2018 (2) 

Recent Publications

** denotes work done in collaboration with graduate students
* denotes work done in collaboration with undergraduate students