Water Resources
Our People
Bryan Childress, PE
Principal and Director of Mechanical Engineering
Kari Wagner, PE
Principal
Robert Miller, PE
Principal
Zach Markow, PE
Civil Engineer
Glenn Rider
Senior Environmental Compliance Specialist
Valerie Huff, PE
Senior Civil Engineer
Olivia Williams
Associate Engineer
Steven Tanaka, PE, CSI, CCS
Principal Civil Engineer
Alexandra Cass
Associate Engineer
Nate Whitcare, PE
Senior Designer
Alex Murray, PE
Civil Engineer
Tina Mayer, PE
Principal Civil Engineer
Greg Hulburd, PE, QSD/P
Director of Water Resources
Bill Callahan
Senior Environmental Compliance Specialist
Travis Vasquez, PE
Associate Engineer
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