Meet the Poop Group...

Click on the members' names for more information.

Jenna Davis

Jenna Davis is the faculty advisor to the Poop Group and a co-founder and faculty lead of the Water, Health & Development program at Stanford. Her research and teaching focuses on the interface of engineered water supply and sanitation systems and their users in developing countries. With a background in public health, infrastructure planning, and environmental science & engineering, Davis explores questions related to interventions that trigger household investment in water, sanitation, and hygiene improvements; the features of water and sanitation services that users value and why; the health and economic impacts of improvements in water supply and sanitation; and the keys to long-term sustainability of installed infrastructure.

Over the past 15 years she has carried out applied research in more than a dozen developing countries, including most recently Kenya, Tanzania, Mozambique, and Colombia. Davis and her group (the “poop group”) have extensive experience in designing and implementing primary data collection (through household surveys and environmental sampling) in resource-constrained environments across developing regions. She teaches undergraduate- and graduate-level courses in public health, water and sanitation planning in developing countries, and the theory and practice of sustainability.

Last modified Mon, 23 Jan, 2017 at 13:05

Nina Brooks

Nina is a second year PhD student in the Emmett Interdisciplinary Program in Environment and Resources. Her research interests focus on environmental health problems in developing countries. She is interested in understanding adoption of environmental health interventions, including WASH interventions, and designing and implementing rigorous impact evaluations of those interventions.

Last modified Mon, 23 Jan, 2017 at 11:46

Jeff Ho

Jeff is a graduate student in the Environmental Engineering & Science program, currently enrolled in the MS degree but planning on staying for a PhD. He is interested in epidemiological studies focusing on user perception and behavioural changes, with special use of GIS and GPS technologies to enhance research ability. Currently, he is working with fellow Poop Group member Kory Russel in examining the role water point distance has on perceived energy usage and other factors in Nampula, Mozambique.

Last modified Mon, 23 Jan, 2017 at 11:47

Laura Kwong

Laura is a first year graduate student in the Environmental Engineering and Science program within the Civil and Environmental Engineering Department at Stanford.  She is particularly interested in sanitation issues in Asia. She is currently working projects in Bangladesh, determinants of sanitation and contamination in produce markets. 

Laura graduated from the University of Minnesota with degrees in chemistry and biology and has studied in Hong Kong, Greece, and mainland China. After graduation, she received a Rotary Ambassadorial Scholarship to study for an M.S. in Egypt, but was unable to complete a master's degree due to the revolution. Suddenly no longer a student, she joined the Environmental Protection Agency as a fellow funded by the Oak Ridge Institute for Science and Education. For five months, Laura worked in the water security division assisting water utilities in detecting, preparing for, responding to, and recovering from disasters, be they natural or man-made. Subsequently she joined the Office of Water's Office of Science and Technology and helped implement national water quality standards.

Last modified Mon, 23 Jan, 2017 at 13:05

Jeannette Laramee

Jeannette is a PhD Candidate in Civil and Environmental Engineering at Stanford University. Her current research investigates the life cycle resource use, carbon impacts and financial costs of decentralized sewered and non-sewered sanitation systems with integrated energy resource recovery. Her past research includes investigating the wastewater treatment and energy performance of community-scale biogas digesters in peri-urban Zambia, as well as the environmental and economic impacts of household biogas systems in rural communities in northern Tanzania. She is a registered Professional Engineer with ten years of work and research experience designing, building and analyzing infrastructure in the United States, Zambia and Tanzania.

Last modified Mon, 23 Jan, 2017 at 13:08

Amy Janel Pickering

Amy J. Pickering is a Research Associate in Civil and Environmental Engineering and the Stanford Woods Institute for the Environment. She earned a master’s degree in environmental engineering from UC Berkeley, and a Ph.D in Environment and Resources from Stanford University in 2011. Amy uses social science, epidemiology, and microbiology to understand diarrheal disease transmission pathways among households in low-income countries and develop strategies to interrupt them. She has led several field studies in Tanzania that employ microbial techniques to identify sources and mechanisms of hand and environmental fecal contamination. Currently she is involved in several health impact evaluations in Africa and Asia: a household-level behavior intervention in Tanzania, a school-based hand hygiene intervention in Kenya, a community-led total sanitation intervention in Mali, and a community-level water disinfection in Bangladesh. You can read moreabout her research at and enjoy her photography at

Last modified Mon, 23 Jan, 2017 at 13:08

Shreyan Sen

Shreyan is a first year graduate student in the Environmental Engineering and Science program within the Civil and Environmental Engineering Department at Stanford, and a Returned Peace Corps Volunteer (Republic of Guinea). He is fluent in Bengali and currently works on water & sanitation projects in Bangladesh.

Last modified Mon, 23 Jan, 2017 at 11:48

Dan Worthington Smith

Dan is a first-year PhD student in the Environmental Engineering and Sciences program at Stanford in 2015. He holds a BS in Civil & Environmental Engineering from Cornell University and an MSc in Water, Sanitation, and Health Engineering from the University of Leeds, UK. Daniel has worked in environmental remediation in the US and managed water, sanitation, and hygiene programs in Latin America and Africa, including extended residence in Honduras, Peru, Mexico, and The Gambia. He is particularly interested in how models for water and sanitation service provision relate to their health and socioeconomic impacts.

Last modified Mon, 23 Jan, 2017 at 13:09

Lauren Steinbaum

 Lauren is a PhD student in the Environmental Engineering & Science program.  Her interest are soil-transmitted helminths, rural sanitation technologies, decentralized wastewater treatment. She is interested in transmission pathways of soil-transmitted helminths, particularly Ascaris, Trichuris, and hookworm. Her work is focused on the relationship between sanitation, soil contamination, and soil-transmitted helminth infection.

Last modified Mon, 23 Jan, 2017 at 11:49

Eric B Wilburn

Eric is a first year graduate student in the Environmental Engineering & Science program. Having most recently served as a Peace Corps Volunteer in Mozambique, he is interested in water and sanitation issues in low- income countries with a current focus on developing sustainable water and sanitation systems through resource recovery from human waste.

Last modified Mon, 23 Jan, 2017 at 11:49

James Winter

James is a first year graduate student in Environment Engineering & Science.  He graduated from Harvard in 2011 with a degree in Applied Mathematics and spent the last 3 years working in public health and management consulting prior to coming to Stanford.  He is particularly interested in the provision of potable water and sanitation in low-income, urban environments.

Last modified Mon, 23 Jan, 2017 at 11:49