The Aquaya team combines experience in applied research,
technology development, and business management.

Ranjiv Khush

Co-founder and Executive Director

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Ranjiv guides Aquaya’s development as a leading research and consulting organization dedicated to effective water quality management in developing countries. Ranjiv brings a science and technology-focused approach to Aquaya that builds on extensive basic research and policy experience. Ranjiv co-founded Aquaya in 2005 following a Fellowship with the Office of the Science and Technology Advisor to the U.S. Secretary of State. Previously he was a research scientist at Stanford University and the Centre National de la Recherche Scientifique in Paris, France.

Ranjiv holds a PhD degree from the University of California, Santa Cruz and MS and BS degrees from the University of California, Davis.


Morris Mwangi

Office Manager, Nairobi

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Bio profile coming soon.

Rachel Peletz

Director of Programs

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Rachel studies policies and practices that promote effective water quality monitoring and management. Previously, Rachel was a Research Fellow and Doctoral student at the London School of Hygiene and Tropical Medicine. She has also worked as an International Technical Advisor for the Centre for Affordable Water and Sanitation Technology (CAWST) in Canada and studied ecological sanitation in India, ceramic filters in Ghana, and ultra-violet water disinfection in Haiti.

Rachel has a PhD degree from the London School of Tropical Medicine and Hygiene, a Masters of Engineering degree from the Massachusetts Institute of Technology (MIT) and a BS degree in Environmental Engineering from the University of California, Berkeley.


Caroline Delaire

Research Program Manager

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Caroline analyzes policies and approaches for water quality monitoring, sanitation, and fecal sludge management. Previously, Caroline was a doctoral student at UC Berkeley where she studied how to improve access to safe water in West Bengal, India. Specifically, she investigated a low-cost technology to remove arsenic and bacteria from groundwater, and analyzed drivers of household behavior change in rural communities. She did her civil service in a non-profit assisting asylum seekers and illegal immigrants in Paris.

Caroline has a PhD and a MS degree in Civil and Environmental Engineering from the University of California, Berkeley, and an Engineering Diploma (BS and MS level) from the Ecole Polytechnique in France.

Joyce Kisiangani Picture-190

Joyce Kisiangani

Research Assistant

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Joyce focuses on strengthening Aquaya’s qualitative research on water quality monitoring and management. She also contributes to quantitative research and project implementation. Previously, Joyce was a research fellow through the School for Field Studies, Boston University where she studied the health impact of the Kenyan Community Health Strategy. She has also worked as a researcher under Funzo Kenya, a USAID funded program.

Joyce holds an MPH degree from Moi University and a BSc. degree in Microbiology from Moi University in Eldoret, Kenya.

Alicea Cock-Esteb

Program Manager, AquayaLEARN

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Alicea is now managing donor relations and funding for our fellowship program, AquayaLEARN. Alicea was previously at Aquaya in the Nairobi office as a Program Officer, assisting with research field team management and technology support with phone data collection and mapping. Prior to working for Aquaya, she was focused on chemical water quality in Southeast Asia, studying arsenic and other heavy metal levels in Cambodia and China. Her experience in the Peace Corps in El Salvador contribute to her excitement of working with under-served populations.

Alicea holds an Masters of Science degree in Environmental Earth System Science from Stanford University and a BA degree in Environmental Chemistry from Skidmore College.

Jenna Scalmanini

Consulting Chief Operating Officer

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Jenna oversees management of Aquaya’s operations and finances from the Larkspur office. Prior to joining Aquaya, Jenna worked as an engineer with a small consulting firm focusing on the use, protection, and management of groundwater in California. Jenna’s experience also includes projects in East Africa focusing on the effects of hand hygiene initiatives on health and compliance and the provision of increased water supply on health outcomes and poverty alleviation.

Jenna holds a Bachelors degree in Civil Engineering and a Masters degree in Environmental Science from Stanford University.

Emily Kumpel

Consulting Research Scientist

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Emily studies drinking water quality as well as water quality monitoring and information management with Aquaya. Previously, Emily was a doctoral student at UC Berkeley where she studied water quality in intermittent piped water systems in Karnataka, India. Additionally, she co-founded a social enterprise, NextDrop, that improves urban water management in India through ICTs. She has also studied household water treatment in Mumbai, India, and sustainability of small community water supplies.

Emily holds a PhD and MS degree in Civil and Environmental Engineering from the University of California, Berkeley, and a BS in Mechanical Engineering from Johns Hopkins University.

Salim Haji

Salim Haji | Affiliated Expert

Principal, Sierranna Partners

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Since March 2005, Salim has been an independent management consultant. Prior to becoming an independent consultant, he was Senior Vice President of Strategy at MacDermid, a ~$700M global specialty chemical company based in Denver, CO. Prior to joining MacDermid in 2003, Salim was a Vice-President and Partner at Oliver Wyman (formerly SPA), a leading strategy consultancy with over 2,500 consultants in 40 offices around the world. In 2007 Salim also founded Distributors Solutions LLC (“DSI”) to serve as a co-op purchasing organization for the ~500 independently owned and operated distributors of MillerCoors brands around the country. Between his time at Oliver Wyman and MacDermid, Salim spent a year as a Visiting Fulbright Professor at a business school in Tanzania (East Africa), where he lectured on Corporate Strategy and Economics.

Salim holds an MBA from Stanford University and a BA degree, magna cum laude, in Economics and Development Studies from Brown University, where he was elected to Phi Beta Kappa.


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