Our Team

Ricardo Aguirre

Ricardo Aguirre is a registered professional engineer, in the states of Illinois, Arizona, New Mexico, Hawaii, Utah, Wyoming, Wisconsin, Montana, Idaho, and Colorado.

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David West

David has over 20 years of experience in water resources, storm water facility design, and floodplain management. He has worked in both the private sector and the public sector where he served as a county floodplain division manager/engineer.

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Brian Schalk

Brian Schalk is the Managing Engineer at HELM Consultants, specializing in flood control for over 15 years. Brian’s primary expertise is in project management, project quality assurance and quality control, and business development.

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Hari Raghavan

Hari Raghavan has more than 25 years of combined technical and academic experience in hydrology, hydraulics, sediment transport, and coastal engineering.

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Ed Kern

Ed Kern has a Bachelor’s Degree and a Master’s Degree in Civil and Environmental Engineering. He is a licensed civil engineer in California and Arizona, and is the Chair of the Arizona Chapter of the Environmental and Water Resources Institute (EWRI).

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Nathan Logan

Nathan Logan is a water resources engineer with nearly 12 years of experience in hydrology and hydraulics, using one- and two-dimensional methods, and analyzing H&H data using GIS.

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Charlie Joy

Charles Joy has 23 years of civil engineering experience with an emphasis in flood control and drainage study/design. He has served as project manager, task lead, and project engineer on a wide range of study and design projects.

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Nolie Templeton

Nolie Templeton has a Ph.D. in Civil, Environmental, and Sustainable Engineering from Arizona State University. She led interdisciplinary hydrometeorological studies of water, energy, and carbon fluxes in Phoenix, AZ and southern Arizona rangeland. Results have been presented at international conferences and published in peer reviewed journals.

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Amelia Ochsenbein

Amelia Ochsenbein has a Bachelor’s Degree and a Master’s Degree in Civil and Environmental Engineering from Arizona State University. Amelia’s professional focus is on utilizing the most current technology to perform analysis and design on engineering projects.

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