Robert L. Siegrist

University Emeritus Professor, Civil and Environmental Engineering

robert-siegrist Robert SiegristRobert L. Siegrist, Ph.D., P.E., BCEE is a University Professor Emeritus of Environmental Science and Engineering at the Colorado School of Mines (CSM). During a transitional retirement period, he is sustaining his affiliation with CSM as a Professor in the Civil and Environmental Engineering Department. From 2001 to 2010, Dr. Siegrist served as Director of the Environmental Science and Engineering Division at CSM. Dr. Siegrist earned his B.S. (High Honors) and M.S. in Civil Engineering and his Ph.D. in Environmental Engineering at the University of Wisconsin. During his career, Dr. Siegrist has held academic and research positions with the University of Wisconsin, Norwegian Institute for Georesources and Pollution Research, Oak Ridge National Laboratory, and the Colorado School of Mines. Since 1995 he has been a faculty member with the Colorado School of Mines. During his career, he has graduated 33 Ph.D. and M.S. students, developed and taught a variety of undergraduate and graduate courses, and directed interdisciplinary research projects with budgets totaling $15 million dollars. Dr. Siegrist is an internationally recognized expert in onsite water reclamation using natural systems and appropriate technology, and in situ remediation of contaminated soil and groundwater using active and passive physicochemical and coupled bioprocess technologies. He has published 300 technical papers and two reference books and holds two U.S. patents. He has also given invited talks at more than 100 workshops and conferences in the U.S. and around the world; during the past few years, he has delivered invited lectures in Australia, Norway, Denmark, Spain, Greece, Romania, Serbia, Nepal, Thailand, Vietnam, and Ireland. Dr. Siegrist has served as an expert panel member and advisor for many U.S. agencies including the U.S. Environmental Protection Agency, Department of Energy, Department of Defense, National Research Council, and Government Accountability Office, as well as for several foreign government organizations. He has been a Fellow with the NATO Committee for Challenges to Modern Society. During his career, he has received recognitions and awards for his service activities and achievements. Outside of his academic career, Dr. Siegrist has a passion for hiking, trail running, and climbing. During the past three decades with family and friends, he has pursued rock climbing and mountaineering across the U.S., Canada, Europe, South America, and Asia.



Coolbaugh Hall 204G



  • PhD, Civil and Environmental Engineering, University of Wisconsin, Madison, WI, 1986 Major: Environmental Engineering, Minor: Soil Science
  • MS, Civil and Environmental Engineering, University of Wisconsin, Madison, WI, 1975
  • BS, Civil Engineering (High Honors), University of Wisconsin, Madison, WI, 1972

Selected Publications

  • Siegrist RL, Lowe KS, McCray JE, Cath TY, Munakata-Marr J. 2013. Onsite and Decentralized Wastewater Systems – Advances from a Decade of Research and Educational Efforts. Australian Water Association journal, Water, Vol 40, No 1, pp 77-84.
  • Woods Poon L, RL Siegrist, M Crimi. 2012. Effects of In Situ Remediation Using Oxidants or Surfactants on Subsurface Organic Matter and Sorption of Trichloroethene. Journal Ground Water Monitoring and Remediation, 32(2):96-105, Spring 2012. DOI: 10.1111/j.1745-6592.2011.01377.x.
  • Siegrist RL, M Crimi, TJ Simpkin (eds). 2011. In Situ Chemical Oxidation for Groundwater Remediation. Springer Science+Business Media, LLC, New York, New York. A reference book in the SERDP/ESTCP Remediation Technology Monograph Series, C.H. Ward (Series ed). link, ~700 p.
  • Krembs FJ, RL Siegrist, M Crimi, RF Furrer, BG Petri. 2010. In Situ Chemical Oxidation for Groundwater Remediation: Analysis of Field Applications and Performance Experiences. J. Ground Water Monitoring and Remediation. Fall 2010. Article first published online: 4 OCT 2010DOI: 10.1111/j.1745-6592.2010.01312.x
  • McKinley JW, RL Siegrist. 2010. Accumulation of Organic Matter Components in Soil During Conditions Imposed by Wastewater Infiltration. Soil Science Society of America J. 74(5). September-October. doi:10.2136/sssaj2009.0395
  • Dugan PJ, RL Siegrist, M Crimi. 2010. Coupling Surfactants/Cosolvents with Oxidants for Enhanced DNAPL Removal: A Review. Remediation Journal, 20(3):27-50.
  • Conn KE, RL Siegrist, LB Barber, MT Meyer. 2010. Fate of Trace Organic Compounds during Vadose Zone Soil Treatment in an Onsite Wastewater System. J. Environmental Toxicology and Chemistry. 29(2):285-293. Published online 8 October 2009. DOI:10.1002/etc.40.
  • Tsitonaki A, B Petri, M Crimi, H Mosbaek, RL Siegrist, PL Bjerg. 2010. In Situ Chemical Oxidation of Contaminated Soil and Groundwater using Persulfate: A Review. Critical Reviews in Environmental Science and Technology. 40(1):55-91.
  • Oesterreich RC, RL Siegrist. 2009. Quantifying Volatile Organic Compounds in Porous Media: Effects of Sampling Method Attributes, Contaminant Characteristics and Environmental Conditions. Environmental Science & Technology, 43(8):2891-2898.
  • Heiderscheidt J, RL Siegrist, TH Illangasekare. 2008. Intermediate-Scale 2D Experimental Investigation of In Situ Chemical Oxidation using Potassium Permanganate for Remediation of Complex DNAPL Source Zones. J. Contaminant Hydrology, 102(1-2):3-16.
  • Lowe KS, SM VanCuyk, RL Siegrist, JE Drewes. 2008. Field Evaluation of the Performance of Engineered Onsite Wastewater Treatment Units. ASCE J. Hydrologic Eng., 13(8):735-743.
  • Petri B, RL Siegrist, ML Crimi. 2008. Effects of Groundwater Velocity and Permanganate Concentration on DNAPL Mass Depletion Rates During In Situ Oxidation. J. Environmental Engineering, 134(1):1-13.
  • Lowe KS, RL Siegrist. 2008. Controlled Field Experiment for Performance Evaluation of Septic Tank Effluent Treatment during Soil Infiltration. ASCE J. Environmental Engineering, 134(2):93-101.
  • Siegrist, R.¬†Decentralized Water Reclamation Engineering.