Jeffrey C. Euclide, PE


As President of Entech, Jeff guides our leadership team as we steer our company to most effectively support our clients in the careful planning and management of their facilities and resources. After serving as a field engineer in power plant construction, Jeff began his career with Entech, assisting facilities managers in the development and implementation of energy cost reduction projects. With over 35 years of experience, he continues to lead the development and delivery of diverse planning and design services that help our clients to make informed decisions in operating their facilities and reducing energy usage. Jeff holds an MBA from Kutztown University and a BSME from The Pennsylvania State University. He is a registered professional engineer in Pennsylvania, New Jersey, Delaware, Maryland, and Washington D.C. and is a Certified Energy Manager.

Robert J. Weir, PE
Executive Vice President


As Entech’s Executive Vice President, Bob oversees our civil and environmental resources group and provides a broad range of technical and project management services for our clients. With 20+ years of experience in civil and environmental engineering, he focuses on guiding our internal teams and ensuring that our clients have the required information to make better informed decisions for effective management of their water and wastewater infrastructure assets. Bob’s corporate strategic focus is on operations management and the application of specific technologies for communication and project delivery. Bob holds a Bachelor’s degree in Environmental Engineering and an Associate’s degree in Electrical Engineering from The Pennsylvania State University and is a registered Professional Engineer in Pennsylvania, New York, Ohio, and West Virginia.

Lenette C. Wells, AIA


As leader of Entech’s Facilities Planning and Design Group Lenette works with Entech’s diverse team of professionals, including engineers, planners, solutions developers and corporate staff-- to answer our client’s questions about how to plan for the preservation, maintenance, renovation or adaptive reuse of their buildings and/or campus. Lenette especially enjoys helping our clients further the missions of their organizations through stewardship of their campus and buildings. To do this, she leads her team through integrating historic, condition, energy, utility, and asset data into the facilities management and sustainability planning process.

Lenette holds an MS degree in Historic Preservation from The University of Pennsylvania and a BArch from the University of Kansas. She is a registered architect in Pennsylvania and New Jersey and a LEED AP® certified professional.

Bryon A. Killian, PE


Focusing on the cost effective and strategic management of water and wastewater infrastructure assets, Bryon leads our municipal infrastructure clients through informed decision-making processes by delivering system evaluations, data analysis, environmental compliance management, and design services. Bryon holds a B.S. in Environmental Engineering from The Pennsylvania State University and is a Certified Wastewater Operator and a Registered Professional Engineer in Pennsylvania.

Bryan C. Haag, PE


Bryan leads our central utility and energy planning services. He guides our clients through building and utility systems upgrades and utility master planning projects. He also works with our clients to address energy and carbon reduction planning in conjunction with utility projects or as independent energy initiatives. Bryan graduated from Drexel University with a B.S. in Architectural Engineering, Mechanical Engineering Focus. He is a Registered Professional Engineer in Pennsylvania and a LEED AP® certified professional.

Tanner A. Sattler, PG


Leading Entech’s oil & natural gas services team, Tanner provides expertise to our upstream, midstream, and downstream clients to support their strategic decision making for natural gas infrastructure development through the delivery of environmental engineering services, permitting, hydrogeological specifications, routing studies, and pipeline design services. Tanner is a licensed professional geologist in Pennsylvania, holding an MS in Geology from West Virginia University and a BS in Earth Science from the Pennsylvania State University.

Christopher M. Hannum, PE


As Entech’s Civil Engineering Manager, Chris oversees the Water and Wastewater Engineering Department and manages personnel, design production and marketing support. With 25 plus years of engineering, water and wastewater experience, Chris focuses on project management, quality assurance and staff training, and helps clients make more informed decisions as they invest in their infrastructure systems.

Chris holds a B.S. in Mechanical Engineering from the Virginia Military Institute and a M.S. in Water Resources and Environmental Engineering from Villanova University. He is a registered professional engineer in the state of Pennsylvania, and a veteran of the United States Army.

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