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Engineers Nominated ByAmerican Council of Engineering Companies

Joshua Boltz, Ph.D., P.E.
Joshua Boltz, Ph.D., P.E.Joshua Boltz, Ph.D., P.E., a project wastewater process engineer at CH2M HILL, Inc. in Tampa, Florida, is making his mark in the wastewater industry through research and new designs, including a pilot study led by Duke University. A novel hybrid bioreactor model that he codeveloped is being used globally by CH2M HILL engineers as a design standard for the construction of advanced nutrient control systems. He has published 31 articles in international conference proceedings and peer-reviewed journals, as well as authored two chapters in the book Biofilm Reactors.

Boltz has established several Water Environment Federation student chapters and serves as past chairman of Alabama’s Water Environment Association Students and Young Professionals Committee and current chair for the Florida committee, as well as ad hoc chair for WEF’s Student and Young Professionals Committee. He was nominated for the WEF Outstanding Young Professional Award and the National Academy of Engineers Frontiers of Engineering in 2007, and he has earned a Special Service Award from Alabama’s Water Environment Association and membership to the prestigious 5S (WEF’s Select Society of Sanitary Sludge Shovelers).
jboltz@ch2m.com

Christine Brazill, LEED AP, LC
Christine Brazill, LEED AP, LCChristine Brazill, LEED AP, LC, is an electrical engineer at HSMM in Washington, DC., where she serves as HSMM’s DC Office Sustainable Design Coordinator. She is leading the sustainable design for the Science and Technology Committee suite on the Capitol Complex—the Capitol’s first green project—and is the sustainable design coordinator for the modernization of the historic Eisenhower Executive Office Building. She also serves as president of the Illuminating Engineering Society of North America’s Capitol Section.

Brazill devotes her spare time to teaching and promoting engineering to students and other professionals. She created the Art Institute of Washington’s lighting class syllabus and course outline and was instructor for three semesters. She also has guest lectured at the Corcoran College of Art and George Washington University, teaching lighting to interior designers.
cbrazill@hsmm.com

Stephanie Hoffman
Stephanie HoffmanStephanie Hoffman, a project engineer for the Energy and Power Division of DMJM Harris, part of AECOM, in Solana Beach, California, has established herself as a leader in the sustainable building sector, by developing creative solutions to reduce energy usage for facilities ranging from single buildings to large-scale campus master plans. She developed sustainable solutions for two campuses of the California State University system, which are set to deliver annual savings of more than $600,000, the equivalent of saving 2,852 metric tons of CO2 or removing 630 cars from the highway.

Hoffman is project design lead on a project focused on developing air-conditioning standards within the San Diego Unified School District, the seventh largest school district in the country. She has evaluated energy-efficiency measures and heating, ventilating, and air-conditioning options for the District, with an eye toward offsetting the increased energy usage that results from air-conditioning the schools. Adding air-conditioning without increasing the District’s utility bills will be accomplished by a variety of energy-efficient measures, including rooftop photovoltaics, solar day lighting, and thermal displacement ventilation.
Stephanie.Hoffman@dmjmharris.com

Zachary Kostura
Zachary KosturaZachary Kostura, a structural engineer at Arup in New York, New York, has worked on tremendously complex projects such as the Fulton Street Transit Center, where he was initially responsible for doing the structural analysis of the existing AC subway line cast-iron lined tunnels. He also worked on the detailed design of the Transit Center “Oculus,” a circular-shaped, glazed, light steel structure. The structure works similarly to a tennis racket, where members supporting the glass are connected to post-tensioned rods to resist gravity, wind, and snow loads, enabling the design team to maximize the amount of daylight penetration.

Kostura also has been involved in a humanitarian effort with WaterAid Nigeria, making project site visits and providing engineering support to improve infrastructure for the delivery of clean water to local communities.
zak.kostura@arup.com

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