Dr. Mark W. LeChevallier
MARK W. LECHEVALLIER is the principal and manager of Dr. Water Consulting, a part-time consulting business, after retiring from American Water at the end of 2017. Dr. LeChevallier received his Bachelor of Science and Masters degrees in microbiology from Oregon State University, and his Ph.D. in microbiology from Montana State University. He has authored over 300 research papers and has received awards from the American Water Works Association for outstanding contributions to the science of water treatment. Dr. LeChevallier was the recipient of the George Warren Fuller award in 1997 from the New Jersey section of the American Water Works Association, and the Abel Wolman Award in 2012 and the A.P. Black award for research in 2015, both from the American Water Works Association. His research areas have included bacterial regrowth, disinfection of biofilms, corrosion, AOC measurement techniques, biological treatment, Mycobacterium, Legionella, microbial recovery and identification, modeling and impact of pressure transients on water quality, and detection, treatment and survival of Giardia and Cryptosporidium. He is a fellow of the American Academy of Microbiology.
Mr. John T. Letson
JOHN T. LETSON is vice president of plant operations at Memorial Sloan Kettering (MSK) Cancer Center. He is a facilities operations executive experienced in all aspects of organizational management, compliance, technical engineering, and operations as they apply to infrastructure, construction, and renovations in research and healthcare environments. He started at MSK in 1999 as manager of plant operations and held multiple positions before being promoted to VP in 2013. He is now responsible for all plant and facilities operations and MSK skilled trade groups throughout the enterprise. Graduating from SUNY Maritime College with a B.E. in naval architecture and marine engineering, he worked for 17 years for a major oil company’s marine transportation department followed by 5 years in construction and property management. While at MSK, he earned an M.B.A. from Hagan School of Business at Iona College. He is a founding member of MSK Green Team–leading energy related initiatives and supporting sustainability. Mr. Letson is the author of MSK’s Legionella monitoring, prevention, and control policies, procedures, and plans.
Dr. Steven A. Pergam
STEVEN A. PERGAM is an associate member in both the Clinical Research Division and the Vaccine and Infectious Disease Division of the Fred Hutchinson Cancer Research Center. He is also an associate professor in the Department of Medicine, Division of Allergy and Infectious Diseases, at the University of Washington and an adjunct associate professor in the Department of Epidemiology, School of Public Health, University of Washington. He serves as the Medical Director of Infection Prevention and is an attending physician at the Seattle Cancer Care Alliance. Dr. Pergam focuses his research on the prevention and treatment of infections among immunocompromised patients and has expertise in infection prevention and hospital epidemiology among cancer and transplant patients. He has lectured, published, and mentored students on the prevalence and diagnosis of Legionella infections in this population. He serves on numerous national committees including the CDC’s Advisory Committee on Immunization Practices and the National Comprehensive Cancer Network Committee on the Prevention and Treatment of Infections in Cancer. He is an associate editor of Current Opinions in Infectious Disease and BMC Infectious Diseases. In 2014, he was elected to be a fellow of the Infectious Disease Society of America. He received his B.A. from Dartmouth, his M.D. from the University of Nebraska, his infectious diseases fellowship training at the University of Washington, and his M.P.H. from the University of Washington, School of Public Health.
Dr. Michele Prevost
MICHÈLE PRÉVOST is the Industrial Chair on Drinking Water of the National Science and Engineering Council of Canada at the Department of Civil Engineering of Polytechnique Montreal. Dr. Prévost’s research has focused on source water protection, water treatment (including disinfection), and various aspects of distribution systems (lead control, biostability, pathogen regrowth, integrity and intrusion, data mining, and hydraulic and water quality modeling). Recently, she has directed the multi-university utility partnership initiative to reduce lead at the tap through a suite of laboratory, field, and epidemiological studies in Canada. She was a member of the technical advisory committee to the Walkerton Commission and presided the Quebec RESEAU Advisory Committee on Drinking Water Regulations for 12 years. In 2016, Dr. Prévost received the A. P. BLACK Award of the American Water Works Association for outstanding research contributions to water science and water supply rendered over an appreciable period of time. In the last 5 years, Dr. Prévost has secured funding to expand collaborative research activities with health care facilities to assist them with emerging water quality issues caused by premise plumbing. She received her B.Sc. in renewable resources from McGill University, her M.A.Sc. in environmental and civil engineering from Ecole Polytechnique de Montréal, and her Ph.D. in civil engineering from Polytechnique Montréal.
Dr. Amy Pruden
AMY PRUDEN is the W. Thomas Rice Professor of Civil and Environmental Engineering at Virginia Tech. Her research focuses on bringing a microbial ecological perspective to understanding and advancing design and management of environmental systems. Pruden is a leading expert on water-based pathogens and antibiotic resistance. In 2012-2013, she led a Water Research Foundation expert workshop and report on Opportunistic Pathogens in Premise Plumbing: Epidemiology, Microbial Ecology, and Engineering Controls, in which a multi-stakeholder framework for public health protection was developed. Her current research, funded by The Alfred P. Sloan Foundation, focuses on how engineering design shapes the composition of the microbiome of tap water and implications for control and spread of Legionella, Naegleria fowleri, and antibiotic resistance genes. She has authored over 100 peer-reviewed scientific journal articles including 30 papers in the previous five years focused on Legionella and other opportunistic pathogens. Dr. Pruden is the recipient of the Presidential Early Career Award in Science and Engineering and the Paul L. Busch Award for innovation in water research. She holds a B.S. in biology and a Ph.D. in environmental science, both from the University of Cincinnati.
Dr. Michele S. Swanson
MICHELE S. SWANSON is a professor of microbiology and immunology in the University of Michigan Medical School, where she is also the Director of the Office of Postdoctoral Studies. Dr. Swanson’s primary research interest is investigating the mechanisms that govern the innate and adaptive immune responses when macrophages ingest microbes, using Legionella pneumophila growth in macrophages as a model system. Currently, her lab is investigating whether changes in the chemistry of Flint, MI’s water supply altered persistence or virulence of Legionella pneumophila. She is also investigating Legionella as part of two other projects—one on microbial water quality in domestic hot water supply and recirculation systems and the other on enhanced disease surveillance and environmental monitoring. She was previously a research fellow at the Howard Hughes Medical Institute, Tufts Medical School, and the American Cancer Society. Dr. Swanson was recently elected president of the American Society for Microbiology. She is co-host of the podcast This Week in Microbiology and co-author of the ASM Press textbook Microbe. She received a B.S. in biology from Yale University, her M.S. in genetics from Columbia University, and her Ph.D. in genetics from Harvard University.
Dr. Paul W. van der Wielen
PAUL W.J.J. VAN DER WIELEN is a principle scientist at KWR Watercycle Research Institute and guest researcher at the Laboratory of Microbiology at the Wageningen University. As head of the biological activity research group at KWR, he focuses on biological stability of drinking water, growth of opportunistic pathogenic microorganisms in water, (micro)biological processes in drinking water treatment, and microbial ecology in drinking water. He uses the latest state of the art methods like next generation sequencing to resolve microbial interactions in man-made water systems and to study the effect of measures to control microbial processes in these systems. Before working in the field of drinking water microbiology, he investigated the microbial ecology of the gastrointestinal tract, deep hypersaline lakes, and marine sediment. His work on Legionella at KWR focuses on the influence of water quality, pipe materials, and taps on growth of Legionella pneumophila and method development to detect L. pneumophila. He is co-editor of Microbial Growth in Drinking-Water Supplies published by IWA Publishing in 2014. Dr. van der Wielen holds a M.Sc. in microbial ecology from the University of Groningen and a Ph.D. in microbial ecology from the Utrecht University in 2002.
Ms. Lan Chi N. Weekes
LAN CHI NGUYEN WEEKES is the director of physical resources at La Cité in Onttawa, Canada. She was previously the senior mechanical engineer and one of the founders of InAIR Environmental Ltd. where she was involved in evaluating Legionella risk and creating management plans for building water systems in Canada, as well as addressing other indoor environmental quality issues such as thermal comfort, biological contaminants, and drinking water quality. Mrs. Weekes has presented on the topic of Legionella in building water systems at the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) and Indoor Air Quality Association (IAQA) conferences as well as publishing articles in ASHRAE and the Canadian Consulting Engineers Journals. She is currently helping to revise sections of the Canada Building Code to address potential Legionella issues in HVAC systems. Mrs. Weekes is an author of the HVAC inspection section of the American Industrial Hygiene Association’s Recognition, Evaluation, and Control of Indoor Mould book. She holds a B.M.E. from L'Ecole Polytechnique of Montreal and a M.A.Sc. (building environment) from Concordia University.