What's New

Greeley and Hansen Appoints New Associate

January 30, 2009 – Greeley and Hansen, recently named Lin Liang as an Associate. “We’re very pleased to promote Lin to Associate of our firm ” said Andy Richardson, CEO. “He consistently demonstrates the technical knowledge, project management skills, and core values that we look for in leaders of our firm.”

Liang is a registered professional engineer and has experience working on a variety of water and wastewater facilities for UV disinfection; wet weather treatment; storm water management; and sewer system condition assessments and rehabilitation. He has expertise in combined sewer overflow studies, design, and management and currently has a lead role on the Combined Sewer Overflow (CSO) Program Design Team for the City of Richmond. His other areas of expertise include process engineering, hydrologic and hydraulic modeling, and geographical information systems (GIS).

Liang holds a MS in environmental engineering from the University of North Carolina at Chapel Hill and a BS in environmental science from Nanjing University, China. He is a member of the Water Environment Federation and the American Water Works Association.

New Associate Named by Greeley and Hansen Architects

January 30, 2009 – Sergio H. Sierra has been named an Associate of Greeley and Hansen Architects, the architectural arm of Greeley and Hansen – a consulting engineering firm specializing in water, wastewater, and water reuse projects. “Sergio has exceptional design and leadership skills,” said Tim Bennett, Principal of Greeley and Hansen Architects. “We’re pleased to recognize his dedication to our clients and the contributions he has made to our firm by including him in our Associates Program.”

Sierra, a licensed architect in several states, has over 25 years of professional architectural design experience on a wide range of institutional and facility structures. He is currently the project architect for a large water plant upgrade and for the design of a new administration building and a blower facility building at two different wastewater treatment plants. His expertise includes developing creative and functional design solutions that maximize limited site features and aesthetically blend with existing buildings, as well as addressing other unique client objectives.

Sierra earned his graduate degree in architecture from the Universidad Pontificia Bolivariana School of Architecture. He is a certified member of the National Council of Architectural Review Board (NCARB) and the American Institute of Architects.

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Andy Richardson Selected as Chief Executive Officer

November 6, 2007 - Greeley and Hansen, a leading consulting engineering firm specializing in water, wastewater, and solid waste projects, named Andrew W. Richardson as the first Chief Executive Officer of the 93-year old firm. As CEO, Richardson will work with the firm's Principals and the executive management team to lead the firm forward in its strategic vision of long-term growth.

"We're very pleased to have Andy in this new leadership role within our organization," said Tom Sullivan, Managing Principal. "He's a dedicated professional with a proven history of leadership both as a Principal of our firm and within various water and wastewater industry organizations. We're very confident that Andy will provide strong leadership to the firm and that he and the management team will build on the firm's long history of success to guide Greeley and Hansen well into the future."

Richardson brings impressive professional qualifications to the CEO position, as well as a passion and commitment to the industry and the work of Greeley and Hansen. As CEO, Richardson will identify ways to effectively position the firm for future growth, while maintaining the firm's focus on providing exceptional service to clients and creative solutions to create better urban environments.

"Throughout my career at Greeley and Hansen, I've been fortunate to have been involved in many challenging and innovative projects for clients that have helped advance our firm and the industry," said Richardson. "I'm honored to take on this leadership role and excited to work on charting a future for continued growth."

Richardson is a registered Professional Engineer and holds a bachelor's and master's degree in civil engineering and an MBA in finance. In addition, he is highly involved in the water and wastewater industry, most recently serving as President of the American Water Works Association for 2005-2006 and on the board of directors for Water For People. He is also a member of the Water Environment Federation, the American Society of Civil Engineers, and the American Public Works Association, among other industry and community activities.

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