Principle Investigator

Rebecca Neumann

Becca joined the Civil and Environmental Engineering Department at the University of Washington in the summer of 2011. Prior to this, she was a NOAA Climate and Global Change postdoctoral fellow at Harvard University where she studied how plant roots and soil conditions modulate the amount of water moved through the landscape. She obtained her Ph.D. from the Massachusetts Institute of Technology with a thesis project focused on understanding one of the major human health problems in Bangladesh: arsenic contaminated groundwater. Prior to graduate school, Rebecca worked as an environmental engineering consultant for EG&G Technical Services, and received her B.S. in Civil and Environmental Engineering and B.A. in Art and Art History from Rice University. Outside of work, Becca enjoys hiking, biking and rock climbing with her two kids and husband.
Contact: Email Phone: (206) 221-2298 Office: Wilcox 168

Postdoctoral Researchers

Pamela Barrett

Pam is a postdoctoral researcher with the Hydro-biogeochemistry group investigating arsenic cycling in contaminated urban lakes in western Washington. She received a PhD in chemical oceanography from the University of Washington in 2015 where she studied the role of particles in marine trace metal biogeochemistry. Prior to graduate school, Pam taught high school chemistry, physics, and biology in the Oakland Unified school District. Pam completed her undergraduate work at the University of Rochester, earning a B.S. in chemistry and a B.A. in political science. Outside of work, she enjoys biking, reading, and dance and is learning to sail.
Contact: Email Office: Wilcox 267 CV

Mickey Jarvi

Mickey joined the Hydro-biogeochemistry group as a postdoctoral research in January 2016. He is a genuine Yooper and completed his M.S. (forest ecology) and Ph.D. (forest science) from Michigan Technological University with a background in tree root responses to changes in soil conditions induced by climate change. He studied fine-root respiration of sugar maple to experimental elevations in soil temperature in a natural sugar maple forest. He also investigated ecosystem level changes in root respiration in a poor fen in Northern Michigan and how changes in aboveground vegetation change greatly influence ecosystem level fine-root respiration. Finally, he undertook a large transect study across 10 degrees of latitude to investigate fine-root respiration and root biomass of sugar maple throughout its entire range to determine similarities or differences across this transect. Mickey has joined the Hydro-biogeochemistry group to investigate how belowground flora and microfauna interact and contribute to both carbon dioxide and methane fluxes with the atmosphere in a bog located in central Alaska. In his free time Mickey enjoys relaxing with his fiancée, taking their dog to off-leash dog parks around Seattle, and exploring the woods for organisms as small as mycorrhizae and as large as the mighty sequoia.
Contact: Email Office: Wilcox 267 CV

Graduate Students

Lara Pracht

Lara Pracht received her B.S. in Civil Engineering in 2010 at the University of Kansas. While there, she was actively involved in Engineers Without Borders, traveling abroad to Andean communities in Bolivia to work on engineering projects. Her research at UW is focused on understanding the effects of altering groundwater flow patterns on groundwater arsenic concentrations in Bangladesh. Outside of school, Lara enjoys reading, traveling, and music.
Contact: Email

Farnaz Aslkhodapasand

Farnaz received her B.S. in Civil Engineering in 2012 from Sharif University of Technology in Terhan, Iran. Her research is focused on modeling methane production and methane oxidation in wetlands, at both the root-scale and landscape scale.
Contact: Email

Nick Waldo

Nick received his A.B. in Environmental Science and Engineering from Harvard University in 2013, where he conducted research in ultrasound water purification. Before coming to the University of Washington, he was a research assistant at Woods Hole Oceanographic Institution working on paleotempestology. At UW, Nick is researching how interactions between plants, microbes, and environmental conditions affect methane emissions from wetlands. While away from research, Nick enjoys hiking, skiing, climbing and any other excuse to adventure outdoors.
Contact: Email

Andrea Wong

Andrea received her B.S. in Environmental Engineering from the University of Southern California in 2011. During her time at USC, she worked on research studying the electrokinetic removal of hexavalent chromium from groundwater. After USC, Andrea interned as a restoration ecologist with the National Park Service and worked as an environmental engineering consultant with AECOM. She is currently involved with the field effort researching the effects of climate change on methane emissions from Alaskan wetlands. Andrea spends much of her time outside of classes and working for the research group training with the Sunrise Dragon Boat team
Contact: Email

Undergraduate Students

Bobby Ardissono

Bobby is an undergraduate working towards a B.S. in Civil Engineering. He joined the lab in the winter of 2014. Outside of the lab and school, Bobby works as a ski instructor and enjoys hiking, running,​and mountain biking.
Contact: Email

Brianna Hunt

Brianna Hunt joined the Hydro-biogeochemistry group in August 2015. She is an undergraduate senior in the Earth and Space Science Department majoring in geology, with a double degree in Anthropology. She is working on lab experiments determining methane oxidation rates in wetlands as they relate to microbial populations and activity within the rhizosphere. She enjoys to paint and cook, and is also an avid downhill skier.
Contact: Email

Former Group Members

Postdoctoral Researchers

Colby Moorberg

Colby Moorberg is a soil scientist that joined the Hydro-biogeochemistry group as a postdoctoral researcher in January of 2014. He is now a faculty member in the Department of Agronomy at Kansas State University. His is interested in soil-root interactions. Colby’s research with the Hydro-biogeochemistry group focused on the effect of plant roots on methane oxidation in boreal wetlands in Alaska. In his free time Colby and his wife, Stacy enjoy cycling, as well as hiking and camping with their two beagles.
Contact: Website

Javier Espeleta

Javier Espeleta joined the Hydro-biogeochemistry group in January 2013 as a visiting scholar from Costa Rica with the goal of studying how plant hydraulic redistribution interacts with soil carbon and nutrient cycling. He is now working as an environmental consultant back in Costa Rica. Javier obtained a Ph.D. from the University of Georgia, a M.Sc. from the University of Florida, and B.Sc. and Lic. degrees from the University of Costa Rica. His main research area is plant ecophysiology, primarily the study of plant roots and the interactions with ecosystem processes. Prior to his move to Seattle, Javier worked in research and science coordination for different institutions of the US and Costa Rica, and in diverse ecosystems, such as temperate grasslands and forests, deserts and tropical rainforests. He served as associate science director and research assistant professor at the University of Arizona’s Biosphere 2 EarthSciences and as postdoctoral researcher for the University of Minnesota, Florida International University and the Smithsonian Environmental Research Center. In Costa Rica, he worked at EARTH University, La Selva Biological Station and the Tropical Science Center. Javier also collaborates with efforts in climate change education and outreach. Outside of work, Javier likes to hike, play soccer and run, and also support the sport and academic activities of his two kids and wife.
Contact: Email

Undergraduates and Lab Technicians

Jen Levye

Jen is a former research technician for the Hydro-biogeochemistry group. She left to become a PhD student at the University of Minnesota in the Department of Ecology, Evolution and Behavior. Outside of work, Jen enjoys hiking and camping, baking, and boardgames with friends.

Joe Ellingson

Joe Ellingson received his B.S. in Civil Engineering in 2014 and is now an environmental engineer in the Seattle area. He worked as an assistant on multiple research projects in the lab during his junior and senior year of undergrad. Joe spends his time outside of school backpacking, rock climbing and playing guitar.

Hunter Brown

Hunter Brown received his B.S. in Civil Engineering in 2013. He now works an environmental engineer in the Seattle area. He worked in the Hydro-biogeochemistry group as a research assistant during his senior year of undergrad and for an additional six months post graduation. While here, he focused on the design and construction of sediment test columns, as well as calculating experiment parameters, to analyze the capacity and removal mechanisms of a PRB, to remove arsenic from contaminated groundwater. Outside of work Hunter enjoys slacklining and biking around Seattle, hiking, wildcrafting, stacking rocks, and rock climbing.

Alex Fussell

Alex worked in the Hydro-biogeochemistry group as an undergraduate researcher during the 2011-2012 academic year. She is now employed as an environmental engineer in a local engineering firm. Alex is an avid ultimate frisbee player and was a member of the Washington women's team, Element Ultimate, and enjoys rock climbing, running and taking advantage of Seattle's rare but beautiful sunny days.