Boehm group November 2016
(Left to right): Collin Closek, Ali Boehm, Katy Graham, Lauren Steinbaum, Jill McClary, Hilary Starks, Nabiul Afrooz, Eily Andruszkiewicz, Wiley Jennings, Angela Harris (with Baby), and Jordy Wolfand. Missing: Kendra Brown and Dan Reineman.


Collin Closek (Post doctoral scholar) is an Early Career Science Fellow at the Center for Ocean Solutions. He is examining biodiversity from the Monterey Bay and Florida Keys National Marine Sanctuaries. As part of the Marine Biodiversity Observation Network (MBON), he is optimizing molecular tools to examine environmental DNA (eDNA) in the water column. Collin earned his PhD from Penn State in 2014 and his BS in Biology from the University of Georgia.
Hilary Starks is a lab technician at the Center for Ocean Solutions using eDNA from sea water in order to detect vertebrates in the ocean. She received her MS degree from UCSC in 2014, where she studied salmon population genetics.
Wiley Jennings is a PhD student studying fecal pollution in environmental waters. His projects include working with citizen scientists to sample coastal discharges, modeling environmental factors associated with fecal pollution in San Francisco waters, and investigating the persistence of human norovirus in surface waters.
Katy Graham is a PhD student studying microbes in the environment. While at Stanford, she has worked on several different projects on the role of sea spray in the beach microbiome and a QMRA of MST markers at California beaches. She is also interested in viral pathogens in stormwater and their removal in biofilters and other LID.
Latifah Hamzah is a PhD student studying pathogen pollution in low income countries.
Ben Kranner is a PhD student working on stormwater biofilters. He is also interested in nitrogen cycling in the beach subsurface.
Jill McClary is a PhD student studying how enteric and pathogenic bacteria respond to sunlight exposure in seawater. Her work focuses primarily on Staphylococcus aureus. She is using cell transcripts to better understand how they respond to photo stress. She received her BS from University of Illinois (UIUC).
Eily Andruszkiewicz is a masters/PhD student interested in environmental DNA in the marine environment. She completed her BS at Notre Dame and studied eDNA in freshwater. You can find Eily in the woods on the weekends, often with her siblings (big brother Pete in picture)! She recently was awarded an EPA-STAR grant for her PhD research.
Jake Gold is a undergraduate student researcher participating in the Stanford CEE REU program. He is working on biofilters for removal of nutrients from grey water and stormwater. He is a Stanford undergraduate majoring in environmental engineering and minoring in earth systems.


Nabiul Afrooz was a post doctorial scholar working in the Urban Water ERC ReNUWIt. He investigated the long-term efficiency of biochar as a filtration media in removing pathogens from stormwater to aid optimization of the field scale design of bioinfiltration systems for urban stormwater treatment. Nabiul has received his PhD from UT Austin in 2015. He is originally from Bangladesh and did his Bachelors in Civil Engineering from BUET. He is now working at SCCWRP (Southern California Coastal Water Research Project.

Dan Reineman. Dan worked on on an NSF-funded project to engage citizens in coastal water quality monitoring. To learn more about the study, visit this link: Dan is now a professor at California State University Channel Islands.
Lauren Steinbaum was a PhD student studying soil-transmitted helminth egg contamination in households in rural Kenya. She is now at University of Georgia.
Kendra Brown was a PhD student studying the transport and fate of microbial pollutants in beach sands and seawater. She is now working at the University of Massachusetts Amherst.
Mia Mattioli did her PhD and a post doc in the lab. She studied water, hands, and health in developing countries, as well as persistence of molecular markers of fecal pollution in water. She was a post doc at Emory. She is now working at the CDC in Atlanta.
Angela Rice was a PhD student who is studying water, hands, and health in developing countries. In the picture at the right, she is making a biscuit on a stick while camping. She is currently a teaching fellow at Stanford for the Thinking Matters program.
Lauren Sassoubre was a PhD student and post doctoral scholar in the lab. She was studying the use of eDNA to detect fish in the ocean for her post doc. For her PhD, she studied the effect of sunlight on enterococci in seawater. She is now a professor at University of Buffalo .
Peter Maraccini graduated with a PhD in 2016. He studied sunlight inactivation of microorganisms in water. He now lives in Southern California and works for a small environmental engineering company.

Anthony Wai Thoe was a post doctorial scholar working on a project to model beach water quality along the State of California coastline. Anthony previously worked on a similar project in Hong Kong where he is from and attended graduate school. Anthony now is a beach manager in Hong Kong.

Dan Wang (Post doctoral scholar) was a post doctorial scholar working on the State of California source identification project to identify sources of microbial pollution along the coast line. She received her PhD from UC Davis in 2011 and is from China. She now works for the EPA.

Sanjay Mohanty (Post doctoral scholar) was a post doctorial scholar working in the Urban Water ERC ReNUWIt. He studied how to best design bioinfilitration systems for the removal of pathogens in stormwater. Sanjay received his PhD from University of Colorado Boulder and is originally from India. He completed a post doc at University of Pennsylvania working after leaving Stanford. He is now an assistant professor at UCLA. Here is a link to his website.

Kevan Yamahara (PhD 2011, COS early career fellow). He studied enterococci and E. coli in beach sand along the California Coast. Kevan used to be a professional fisherman and is an avid surfer. He was awarded a position at the Center for Ocean Solutions as an early Career Scholar to work with Boehm and Chris Scholin at MBARI to adapt the environmental sample processor to measure concentrations of fecal indicators and pathogens. He is now working full time at MBARI.

Todd Russell (PhD, 2014). He studied the transport of E. coli, enterococci, and coliphage through sands as well as within the surfzone. He led the microbial source tracking project at Cowell Beach, Santa Cruz, CA as part of the State of California Source Identification project. He is currently the vice president of System Operation Servises, Inc (SOS).
Simon Wong (PhD 2014) studied at the intersection of fluid mechanics with water quality science. He studied the effect of internal tides on shoreline water quality at Huntington Beach, CA. He also studied the fate of small plumes in the coastal ocean. Simon currently lives in his home country of Hong Kong. Simon1
Amy Pickering (PhD, 2011) was a doctoral student in the IPER program where she studied the efficacy of alcohol-based hand sanitizer for reducing bacteria and pathogen concentrations on hands, and improving health in the developing world. Amy is now a research associate at Stanford and works on projects in Kenya, Mali, Bangladesh, and Tanzania. She will soon begin as a professor at Tufts.

Nick de Sieyes (PhD 2011) was a California Sea Grant trainee. He studyed submarine groundwater discharge along wave-dominated California beaches. In the picture at the left, he is installing well points at our field site at Huntington Beach, Ca. (Nick is on the beach, Keeney Willis is on the ladder.) Nick currently works at UC Davis.

Blythe Layton (PhD, 2011) studied enterococci in the environment and the relation between climate and health.
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Sarah Walters (Post doctoral scholar). Sarah studyed the persistence of nucleic acids in natural waters. In particular, she was working with poliovirus and enterococci. Her poliovirus plaque assay is shown at the right. She also ran the USDA project to look at pathogens and indicators in coastal streams.

Emily Viau (Post doctoral scholar) studied the health risk of exposure to land based runoff from streams in Hawaii. Her work was funded by the NSF Oceans and Human Health program. She also assisted in the Tanzania project with the microbiology and pathogen testing of water and hand rinse samples. Emily received her PhD from Yale in 2009 studying pathogens in biosolids.

Tim Julian (PhD, 2010). His thesis is entitled Fomites in Infectious Disease Transmission: A modeling, laboratory, and field study on microbial transfer between skin and surfaces. He was a post doc in Kellog Schwab's group at Johns Hopkins School of Public Health in Baltimore and is now a professor at EAWAG in Zurich, Switzerland.

Karen Knee (PhD, 2010) Karen was a doctoral student in geology and environmental sciences. She was co-advised by Adina Paytan and Ali Boehm. She studied submarine groundwater discharge along the Kona coast of Hawaii and the North shore of Kauai (in Hanalei). She was a Fulbright Scholar working in Ecuador and is now a professor at American University in Washington DC.

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Maggie Montgomery (Post doctoral scholar 2009-2010) worked on the Tanzania project to understand how providing personalized information on water quality and hand contamination influences people's behaviors and attitudes about water, as well as their health and stored water quality, and hand contamination. She is currently working on international water and health issues at the WHO in Geneva.

Daniel Keymer (PhD, 2009) studied the ecology of Vibrio cholerae in California coastal waters. Daniel was the recipient of a Stanford Graduate Fellowship. In the photo to the left, Daniel collects data during one of his monthly sampling outings. Daniel was a post doc at University of Illinois at Urbana-Champaign as well as University of Georgia. He is now a professor at University of Wisconsin Stevens Point.

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Alyson Santoro (PhD, 2008) studied the microorganisms responsible for nitrogen cycling in coastal aquifers and how sea surface temperature and other ocean physics controls pollutant and phytoplankton levels in the surf zone. In this picture, she is collecting samples from the surf zone at day break during August of 2005. Alyson was the recipient of an NSF Graduate fellowship. A culture of ammonia oxidizing bacteria and archaea she collected and grew from the subsurface at Huntington Beach is shown to the right. Alyson is a post doctoral researcher at Woods Hole Oceanographic Institute. She was a professor at Horn Point Marine Lab in Maryland and is now a professor at UCSB. She is the proud owner of a german shepard.

Nick in the
Nick Handler (MS with thesis, 2006). He studied the effect of land use on coastal water quality in central and northern California. He is currently working in the lab as a researcher. Nick's sampling sites are shown to the right. Nick now lives in Uganda where he works for One Acre Fund.

Deyi Hou received his MS and ENG degrees. His work focused on risk endured from recreational water contact. He is also studyed the ecology of fecal indicator bacteria and Salmonella spp. in seawater. He was the recipient of the Shaw Fellowship from Stanford University.

Francisco Tamayo was a high school student who worked in the lab. He worked with Kevan Yamahara studying enterococci persistence in sand. He attended Eastside Prep in East Palo Alto where he was a resident at one of the dormatories. He is an amazing artist and musician! His talents never cease to amaze us!

Diana Kitt was a undergraduate student researcher participating in the ReNUWIt REU program in summer of 2016. She worked on biofilters for removal of pathogens from stormwater. At the time, she was a rising senior at University of Delaware majoring in CEE.

Lilian Lam was a high school senior when she started in the lab. She attends Swarthmore College. She has worked with Daniel Keymer and Blythe Layton. During the summer of 2006, she investigated the variability in Vibrio cholerae across a salinity. During the summer of 2007, she worked with Blythe to study the esp gene in enterococci and what species of enterococci can be found in the environment. She is a whiz at molecular methods and might just be the most productive member of the lab. She recently received her PhD from at Stanford in the Microbiology Department and now has a post doctoral position in the UK.