WSSS Students

Ali S Akanda
Graduate School of Engineering
Department of Civil and Environmental Engineering


Degree and Expected Year of Graduation
PhD, 2010

Advisor
Shafiqul Islam

Primary Research Topic
Investigating the Role of Hydroclimatology in Seasonal Cholera Transmission

Cholera remains a major public health issue in the developing world, mainly in coastal areas around the tropics. Cholera incidence shows significant bi-annual peaks and strong inter-annual variability in the Ganges-Brahmaputra-Meghna basin region of South Asia. Increasing water temperature and phytoplankton blooms during the spring low flow season increases the concentration of pathogenic V. Cholerae in the coastal Bay of Bengal region. Sea water intrusion during this time of the year provides favorable conditions for the first outbreak of cholera. Cholera incidence decreases during peak monsoon precipitation period when most of the region undergoes flooding and open mixing of water networks and reservoirs. The second peak is triggered in late monsoon and has shown strong links with above average floods. Cholera epidemics have been historically linked to climate variables and more recently with El Nino-Southern Oscillation; however, the role of hydroclimatology and the regional ocean-atmospheric processes is poorly understood. The goal is to understand the role of these processes in an attempt to identify predictors with significant memory on a seasonal or longer time scale.

Other Project Titles
Seasonal Streamflow Forecasting for Ganges-Brahmputra-Meghna Basin - A Framework for Promoting Cooperation in Transboundary River Basins

Water-Relevant Experiences, Technical Skills, Software, Languages
Visual Basic, Matlab, Perl, ArcGIS, HEC-RAS, HEC-HMS, AutoCAD Civil 3D

 

Melissa Bailey
Friedman School of Nutrition Science and Policy
Agriculture, Food and Environment Program


Degree and Expected Year of Graduation
PhD, 2010

Advisors
Parke Wilde - Chair (Friedman), Timothy Griffin (Friedman), Kent Portney (A&S - Political Science)

Primary Research Topic
Livestock Production and Water Quality: An Analysis of Politics and Implementation of USDA's Environmental Quality Incentives Program

This dissertation project seeks to understand the role of EQIP in promoting sustainable or unsustainable livestock production with a focus on water quality and manure management issues. Coupling qualitative and quantitative methods from political and environmental science, this project will analyze the interest groups politics that shaped EQIP program priorities, evaluate whether EQIP is meeting water quality goals set by federal policy and create a framework on what factors or characteristics of livestock operations are most critical to sustainability. This framework will be used to test the hypothesis that EQIP priorities are, in some cases, failing to meet sustainability goals.

Publications

• Bailey, M.R. & Merrigan, K.A. (2009). Rating Sustainability: An Opinion Survey of National Conservation Practices Funded Through the Environmental Quality Incentives Program (EQIP). Submitted/Under Review.

Water-Relevant Experiences, Technical Skills, Software, Languages
Part of multi-country team who conducted a transboundary watershed assessment in Mesoamerican Barrier Reef region, statistical software (SPSS, STATA, SAS), qualitative analysis software (NVIVO) and basic GIS

Post Graduation Interests
Agricultural extension service, farm consulting and policy analysis.

 
Alex Bedig

Alex Bedig
Graduate School of Engineering
Department of Civil and Environmental Engineering


Degree and Expected Year of Graduation
ME Environmental Water Resources Engineering, 2010

Advisor
Steven Chapra

Primary Research Topic
Open-Source GIS-Based Software for Modeling Waterborne Contaminants and Diseases

My research is the development of an open-source GIS-based watershed-to-regional scale water management software package built to work with standalone modules that interchangeably characterize waterborne contaminants and diseases through time and over space. The basic idea is to create a software package that frees people from the need to understand hydrological modeling, allowing new research on disease and contaminant fate, transport, and interaction with various species (like humans) to be quickly implemented into a computing environment that can produce results relevant to decision makers. By making it open-source and Linux-based, I hope to be able to overcome the cost barrier that has kept water quality modeling tools on the watershed and regional scale from being adopted by many of the poorer nations where they're needed most, as well as encourage academic institutions to build disease or contaminant-specific modules for it based on their own research.

Professionally, I have experience with reservoir storm operations, temperature and economic solutions modeling for habitat preservation, water rights transfer law in California, and database design and management.

Water-Relevant Experiences, Technical Skills, Software, Languages
GIS, MATLAB programming, MATHCAD, VBA for Excel and Access, C++, HTML, CSS, Flash

 

Benjamin Bornstein
Graduate School of Engineering
Department of Civil and Environmental Engineering


Degree and Expected Year of Graduation
MS Environmental Health, 2009

Advisor
Anne Marie Desmarais

Primary Research Topic
An Evaluation of the Exposure Parameters and Possible Risks Posed to Human and Ecosystem Health Due to Fish Consumption from Areas of the Mystic River Watershed

Recent data collected by certain environmental and health agencies suggests that various species of fish within sections of the Mystic River Watershed, MA, have high levels of toxicity. The three most commonly found substances are DDT, chlordane, and PCBs. These compounds have been banned for years in the US but are persistent in the environment and can bioaccumulate to dangerously high levels, especially in the tissues of higher trophic-level organisms. Anecdotal evidence indicates that many community members, especially from certain environmental justice and ethnic populations, may be relying on Mystic-caught fish as a common source of food. These substances are known to cause detrimental effects on human and animal health after high or prolonged exposure. Through my research I hope to gain insight as to the level of risk the contaminated fish pose to humans that consume them, and what sort of long term implications contaminated water and sediments may have on the ecosystem. I will also try to determine exposure statistics for people that consume toxic fish, and try to assess if state advisories are appropriate and having the desired impact.

Other Project Titles
WSSS Practicum, Nassau, Bahamas

Water-Relevant Experiences, Technical Skills, Software, Languages
ArcGIS, Coastal Surveying, New England Ecosystems, Risk Assessment, Public Health, Geology, Spanish

Post Graduation Interests
Travel, international development and urbanization, consulting, Ph.D or M.D. program

 
Ashley Colpaart

Ashley Colpaart
Friedman School of Nutrition Science and Policy
Food Policy and Applied Nutrition Program


Degree and Expected Year of Graduation
MS, 2010

Advisor
Parke Wilde

Primary Research Topic
Interested in Agricultural Water Usage and Conservation, water usage in utilities and public works, water privatization issues

 

Rhiannon Ervin
Graduate School of Engineering
Department of Civil and Environmental Engineering


Degree and Expected Year of Graduation
PhD, 2010

Advisor
Andrew Ramsburg

Primary Research Topic
Quantification of DNAPL architectural features using partitioning tracers in a modified push-pull test

In recent history, many groundwater aquifers have been contaminated by accidental or purposeful disposal of organic compounds, such as chlorinated solvents. Currently, a great deal of research is being conducted on how best to remove these contaminants from the subsurface and restore groundwater quality. Within the aquifer, chlorinated solvents form a non aqueous phase which is distributed as small blobs in individual sand grain pores, or as larger blobs in interconnected pores, known as pools. The best type of remediation and the benefit of attempting remediation is largely dependant on this spatial distribution. The purpose of my research is to develop a tool that can be used to estimate the spatial distribution of the contamination, with the hope that this information will help guide remediation designs.

Water-Relevant Experiences, Technical Skills, Software, Languages
Fate and transport of chemicals in the environment, chemical lab work, experimental design

Post Graduation Interests
Work for a consulting firm or government agency on groundwater remediation projects

 
Yongxuan Gao

Yongxuan Gao
Graduate School of Engineering
Department of Civil and Environmental Engineering


Degree and Expected Year of Graduation
PhD, 2010

Advisors
Dr. Paul Kirshen, Dr. Richard Vogel, Dr. Peter Walker and Dr. Vladimir Smakhtin (International Water Management Institute)

Primary Research Topic
Environmental Flows in the Context of Small Reservoirs in Ghana

Applying integrated water resources management to improve livelihood in developing countries and environmental flows. She is currently conducting her research on environmental flows in the context of small reservoirs in Ghana, West Africa.

Other Project Titles
Development of Representative Indicators of Hydrological Alteration Using Principal Component Analysis

 

Karen Claire Kosinski
Graduate School of Engineering
Department of Civil and Environmental Engineering


Degree and Expected Year of Graduation
PhD, 2010

Advisors
Dr. John Durant (School of Engineering), Dr. David M. Gute (School of Engineering),Dr. Miguel Stadecker (The Sackler School of Biomedical Sciences, Tufts)

Primary Research Topic
Novel Preventative Measures for the Control of Schistosomiasis: A Preliminary Trial in Adasawase, Ghana

Approximately thirty-five percent of children and adolescents in Adasawase, Ghana are infected with the parasite Schistosoma haematobium. They contract the parasite in several local rivers where they play, bathe, and collect water. The disease caused by this parasite, urinary schistosomiasis, may be characterized by painful urination, blood in the urine, and possible long-term bladder pathology. I hypothesize that a water recreation structure will be a novel, effective, and sustainable intervention for schistosomiasis.

Water-Relevant Experiences, Technical Skills, Software, Languages
Excel, Lindo, Mathcad, Visual Modflow, Spanish, very basic Twi

Post Graduation Interests
International work, use of water resources engineering to prevent/mitigate public health problems, especially parasitic diseases, in the tropical world

 

Jack Melcher
Graduate School of Engineering
Department of Civil and Environmental Engineering
Graduate School of Arts & Sciences
Department of Urban and Environmental Policy and Planning


Degree and Expected Year of Graduation
MS/MA, 2011

Advisors
Richard Vogel, John Durant, Scott Horsley, Rusty Russell

Primary Research Topic
Stormwater Policy and Planning

My research will examine the use of stormwater modeling techniques to place Best Management Practices and meet water quality goals.

Other Project Titles
WSSS Practicum 2009; Engineers Without Borders potable water supply in San Jose Villanueva, El Salvador

Water-Relevant Experiences, Technical Skills, Software, Languages
Internship at the Charles River Watershed Association, Summer 2009. Five years of experience as a project engineer doing land development, public water supply design and testing, on-site wastewater disposal system design, and stormwater design in the Pioneer Valley, Massachusetts. Internship at the Massachusetts Department of Environmental Protection – wetlands mapping project. Competent using AutoCAD Civil 3D, performing topographic surveys, and researching property records. Licensed as a Professional Engineer and as a Soil Evaluator in Massachusetts.

Post Graduation Interests
I hope to work on projects that use technology to make better decisions on complex issues.

 

Laura G. Meloney
Friedman School of Nutrition Science and Policy
Food Policy and Applied Nutrition Program
School of Medicine
Public Health and Professional Degrees Program


Degree and Expected Year of Graduation
MS/MPH, Global Health Concentration, 2011

Advisor
Jennifer Sacheck

 
Melissa Ng

Melissa Ng
Graduate School of Engineering
Department of Civil and Environmental Engineering


Degree and Expected Year of Graduation
MS Environmental and Water Resources Engineering, 2010

Advisor
Rich Vogel

Primary Research Topic
Impacts of increased urbanization on hydrologic processes within two neighboring river basins in Massachusetts: 1940s - present

The two river basins, Aberjona river basin and Neponset river basin, are both similar in size and have had significant increases in urbanization over the past few decades. Interestingly, one river basin shows an overall decrease in streamflows over the past few decades, whereas the other basin shows overall increases in streamflow. I will model the effects of water use and land use changes as well as local climate changes on the two river basins. This work is unique because most previous research has focused on the independent impacts of land use, water use and climate changes, whereas my research will focus on their multivariate interactions and effects on the hydrologic cycle. In addition to determining the sensitivity of streamflows to historical changes in water demand, land use and local climate, other societal changes, such as population and household income will also be examined.

Water-Relevant Experiences, Technical Skills, Software, Languages
My experience lies mainly in surface water hydrology and water quality. I have much field experience measuring flows and other physical parameters, and assessing nutrient and bacteria levels. I spent one summer working in the bacteriology lab for Westchester County government testing public and private potable and non-potable waters for fecal coliform, e-coli and entrococcus.

ArcGIS, Ion chromatograph, Inductively Coupled Plasma Spectrometer.

 

Sarah Trist
Friedman School of Nutrition Science and Policy
Food Policy and Applied Nutrition Progam


Degree and Expected Year of Graduation
MS, 2010

Advisor
Daniel Maxwell

Water-Relevant Experiences, Technical Skills, Software, Languages
Functional Spanish, Registered Dietitian

Post Graduation Interests
Agriculture and Water, Trade Policy

 

Li Wang
Graduate School of Engineering
Department of Civil and Environmental Engineering


Degree and Expected Year of Graduation
PhD, 2010

Advisor
Linda Abriola (CEE)

Primary Research Topic
Reactive Transport Modeling for Evaluation of Long Term Performance of Permeable Reactive Barriers for Remediation of Arsenic Contaminated Groundwater

The primary goal of my research is to numerically investigate the combined effects of mineral fouling, gas entrapment and biofouling on the long term performance of conceptual PRB systems that are representative of realistic groundwater remediation scenarios using reactive transport modeling methods. To effectively predict the evolution of such a PRB system, the processes of mineral precipitation/dissolution, gas generation and entrapment, and biomass accumulation will be incorporated into a reactive transport model and their impacts on flow, reactions and transport in the PRB system will be simulated. The influence of heterogeneity in aquifer and the PRB itself will also be simulated to better understand the PRB performance under typical field conditions. The modeling results will help identify which factor or combination of factors are most important in PRB performance evaluation and provide guidance in PRB design and operation under different site characteristics.

Water-Relevant Experiences, Technical Skills, Software, Languages
investigation of soil and groundwater contamination, landfill leachate treatment,surface water modeling (LAKE2K, QUA2K), geochemical modeling (PHEEQC, MINEQL),groundwater & contaminant transport modeling (MODFLOW, MT3D, RT3D, PHAST, HYDRUS1D), parameter estimation & uncertainty analysis (PEST, CXTFIT, GIS, ArcGIS), programming - Fortran, C/C++, VBA, Matlab, Chinese (Mandarin)

Post Graduation Interests
Consulting, Investigation & Remediation of Soil & Groundwater Contamination

 

Kendall Webster
Graduate School of Arts & Sciences
Department of Urban and Environmental Policy and Planning


Degree and Expected Year of Graduation
MA, 2010

Advisor
Sheldon Krimsky

Primary Research Topic
Conservation and advocacy for water bodies, watersheds, aquifers, etc.

This concern stems from my environmentalist background, and I believe that if you can protect a watershed, you're also protecting the ecosystem around the watershed. I am interested in handling water conservation issues from a policy standpoint, although the idea of working in politics makes my skin crawl. Right now I'm looking at alternatives to politics. For my thesis, I may research the strategies of non-profit organizations like the Nature Conservancy, which buys open space to restrict development and protect the resources it holds. This is one of my favourite models for conservation. However, I do believe that stringent policy for watershed protection should be developed in the next couple of years.

Water-Relevant Experiences, Technical Skills, Software, Languages
I've travelled all over the world and consider myself a very experienced traveller. I think this will come in very handy when we go south for the field project. I also speak Spanish, which has been extremely helpful for me in all that I do.
Also, I'm a water polo player and a great swimmer. That's a pretty literal water-relevant skill!
On a more serious note, I don't have much technical experience with water issues. I've just learned how to delineate a watershed, prepare a hydrological budget for it and calculate the total maximum daily load of contaminants to it from Scott Horsley, although I wouldn't say that I'm a pro at that.
I'm looking forward to learning everything I can about water in the certificate program.

 

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The Water: Systems, Science and Society (WSSS) program at Tufts University is a certificate program that provides graduate students with interdisciplinary perspectives and tools to manage water-related problems around the world.

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