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About Services News Contact LEADERSHIP TEAM HAN-BIN LIANG, PH.D., P.E., QSD/P VICE PRESIDENT /MANAGING PRINCIPAL Dr. Liang has been involved in over 1,400 infrastructure and water resources projects in the state of California. He has a strong career commitment in civil engineering, water resources, environmental hydrology, and coastal engineering. Read more Civil Engineering Environmental Compliance Geotechnical Engineering Water Resources CIVIL ENGINEERING LEADS GARRETT LOW, P.E. Associate Vice President Storytelling ANDREW SEKIOKA, P.E. Senior Civil Engineer ERICA CRUZ, P.E., QSD/P Senior Civil Engineer JOSEPH VU, P.E. Senior Civil Engineer Senior Civil Engineer OTIS CHAN, P.E. T. RYAN O'KANE, P.E., QSD/P Senior Civil Engineer ANALETTE OCHOA, P.E., QSD/P, ToR Associate Vice President JOYCE CHENG, P.E. Senior Civil Engineer SANDRA ETCHELL, M.S. Senior Biologist ANDREW CHIN Project Manager ENVIRONMENTAL COMPLIANCE LEADS CHRISTINE BOSCHEN, M.S., QISP Senior Environmental Scientist GEOTECHNICAL ENGINEERING/ GEOLOGY LEADS DAVID KITZMANN, P.E., P.G., CEG Associate FRANK TABER, P.E., G.E. Senior Geotechnical Engineer MELISSA MCASSEY, P.G., QSD/P Senior Geologist ANDREW SMITH, P.G. Senior Geologist WATER RESOURCES LEADS CHRIS SEWELL, P.E., QSD/P Associate Vice President JENNIFER ABRAMS, P.E. Senior Lead Civil Engineer LESLEY BROOKS, P.E., CFM, ENV SP Associate RAJA PERIKETI, P.E., QSD/P Senior Civil Engineer KAZUYA TSURUSHITA, P.E. Senior Civil Engineer ALVIN YIM, CPSWQ, QSD/P Project Manager JEFFREY TUDD Senior Civil Designer ERIC BILAND, P.E., CSM, LEED AP, QSD/P, QISP, CWM Senior Civil Engineer SUE WANG Area Accounting Manager AMY LY CHEN Area Marketing Services Manager Back to Top OPERATIONS LEADS HDR | WRECO Contact Follow 1243 Alpine Road, Suite 108 Walnut Creek, CA 94596 info@wreco.com T: (925) 395-9500 ©2021 HDR | WRECO

About Services News Contact Work hard, play hard: WRECO's Project and Social News Blog. All Posts Project News WRECO News Company Culture/Events Archives 2021 Nov 5 1 min Have you seen Alameda County’s new Cherryland Community Center? 5 0 Post not marked as liked Nov 3 1 min 2021 Halloween Costume Contest 7 0 Post not marked as liked Aug 5 2 min HDR Acquires Civil Engineering, Environmental Firm WRECO 277 0 1 like. Post not marked as liked 1 HDR | WRECO Contact Follow 1243 Alpine Road, Suite 108 Walnut Creek, CA 94596 info@wreco.com T: (925) 395-9500 ©2021 HDR | WRECO