Professional Advisors

Andrew Robertson

Souder, Miller & Associates

Engineer with expertise in water treatment technologies and hydraulics

Aran Vogenthaler

Souder, Miller & Associates

Designer with expertise in water treatment technologies

Blanca Surgeon

Rural Community Assistance Corporation (RCAC)

Water resource administration expert, community organization

Bob Dunsmore

Certified Water Operator for Vallecitos, New Mexico

Appropriate technology and community development specialist having worked in 20 countries

Braulio Rojas

Suma Jayma

Executive director. Expertise in community organizing and local government management

Dale White

Tarrant Regional Water District (Texas)

Well drilling expert based in Texas who has provided training to Suma Jayma staff in Texas, and again in Bolivia

Enrique Lozano

Civil Engineer, living in Honduras, with expertise in hydrology, assessing the feasibility of construction of local water projects, project management and community organizing.

Ewan Young

Souder, Miller & Associates

Project Manager with experience in water and wastewater technologies and design/build projects

Dennis Conner

Souder, Miller & Associates

Engineer/Project Manager with experience in infrastructure development in developing countries

Emily Sotelo

Souder, Miller & Associates

Engineer with expertise in hydraulics

Jason Gehrig

Tarrant Regional Water District (Texas)

Engineer with expertise in water treatment technologies and hydraulics

Jaime Rosas

Suma Jayma

Senior technician in civil engineering and industrial mechanics, with expertise in water project design

John Torres

Rodgers and Co.

Highly experienced well drilling technician in New Mexico who has provided invaluable training to Suma Jayma staff on well drilling procedures

Jason Obergfell

Cochabamba, Bolivia

Civil engineer with expertise in water resources, basic sanitation, and in-country project management

Greta Quintana

Souder, Miller & Associates

Engineer with expertise in structural design and analyses

John Rocha

Souder, Miller & Associates

Land Surveyor with more than 30 years of experience in the field

Jorge Rosas

Suma Jayma

Technician in plumbing, with expertise in manufacturing hand pumps and mechanical tools

John Lincoln

Independent Consultant

Engineer with expertise in water and wastewater treatment technologies and hydraulics

Lam Ho

Souder, Miller & Associates

Engineer with expertise in water and wastewater treatment technologies and hydraulics

Linda Ochoa

Urubamba, Peru

Retired teacher and ex-Peace Corps volunteer in Urubamba, Peru, community organizer and key point of contact for WEFTA in the Urubamba River Valley

Justin Logan

AQUA Engineering

Engineer with special expertise in wastewater treatment technologies

Kees Grootenboer

Sculptor and Architect, living in Mexico, with expertise in water project management, bio-digestors and community organizing

Lou Harrington

Souder, Miller & Associates

Landscape architect with expertise in community organization, project/program management

Mark Howard

Souder, Miller & Associates

Senior Civil Designer with expertise in preparation of Engineering/ Construction Plans

Marvin Martinez

Souder, Miller & Associates

Water and wastewater operator with expertise in start-up and troubleshooting of systems

Matt Earthman

US Army Corps of Engineers

Geologist with expertise in geohydrology

Peter Fant

Souder, Miller & Associates

Engineer with expertise in water and wastewater treatment technologies and hydraulics

Ramon Lucero

Souder, Miller & Associates

Project manager with expertise in community organization, water needs assessment/scoping

Richard Mulliken

Land Surveyor with expertise in mapping remote & inaccessible areas

Paul Kennedy

Souder, Miller & Associates

Engineer with expertise in water and wastewater treatment technologies and hydraulics

Ryan Biehl

Souder, Miller & Associates

Engineer with expertise in water system hydraulics & water supply well design

Scott McKitrick

Souder, Miller & Associates

Geologist with expertise in effects of mining on water, water treatment technologies

Scott Rogers

AQUA Engineering

Engineer with special expertise in wastewater treatment technologies

Steve Wright

Souder, Miller & Associates

Engineer with expertise in water system hydraulics & water supply well design

Winn Cowman

Souder, Miller & Associates

Environmental scientist with expertise in policy, management, and stakeholder outreach

Royce Beaudry

Souder, Miller & Associates

Engineer with special expertise in water and wastewater treatment technologies and hydraulics

Tory Tadano

Souder, Miller & Associates

Engineer with expertise in water treatment technologies and hydraulics

Scott Andreasen

Souder, Miller & Associates

Engineer with expertise in Geographic Information Systems (GIS)

Water & Health

Since 2002, WEFTA has been connecting donors, engineers, and communities in Latin America, all with the common goal of ensuring access to clean drinking water for everyone.

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Sanitation & Environment

WEFTA engineers help communities make sound decisions and facilitate the dialog leading to the development of solutions for inadequate sewage treatment, and its associated environmental impacts. 

Development & Sustainability 

WEFTA volunteers work with the communities we partner with to develop the local skills needed to maintain and manage the water and wastewater systems constructed. 

Souder, Miller & Associates (SMA) is an engineering, environmental and surveying firm and proud partner of WEFTA since 2002.

Visit SMA

Connecting engineers and
donors with communities in
Latin America in need
of clean water
and sanitation.

Learn how you can help