Geosyntec Los Angeles - Downtown, California Office
Each of our offices can assist clients with our complete range of proven and innovative engineering and scientific services from our global network of leading consultants. See a list of our practice areas »
Address: 448 South Hill Street, Suite 1008, Los Angeles, CA, 90013, USA
Telephone: 310-957-6100
Principal Consultants
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Mark Hanna, Ph.D., P.E., LEED AP
Mark Hanna is a Senior Principal Water Resources Engineer based in California with over 20 years of experience focused on water resources management. His experience in water rights, integrated water resources, and environmental restoration planning and implementation allows him to offer clients comprehensive solutions to the growing problems of water supply and demand in the natural and man-made environment. Mark specializes in large system hydraulics, hydrology, surface water and gro ...
Related Geosyntec News
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Geosyntec Among World-Class Designers on LA County's LA River Master Plan Team
Tuesday, 06 March 2018
Geosyntec was selected by the Los Angeles County Department of Public Works and the Los Angeles County Department of Parks and Recreation as the prime consultant and engineer to update the County's 1996 LA River Master Plan. Key subconsultants joining Geosyntec on the Master Plan team are the celebrated architect/design f ... -
Geosyntec Participation at the 13th Annual CASQA Conference
Monday, 16 October 2017
Geosyntec staff made a significant technical contribution to the 13th Annual California Stormwater Quality Association (CASQA) Conference entitled "CASQA in the Capital: Building Bridges for Water" at the Sacramento Convention Center on September 25-27, 2017. Key contributions of Geosyntec staff: ... -
Mark Hanna and Howard Cumberland to Present at ABA 46th Spring Conference
Tuesday, 21 March 2017
Mark Hanna (California) and Howard Cumberland (Oregon) will present at the American Bar Association's (ABA) 46th Spring Conference at the Loews Hollywood Hotel in Los Angeles, California on March 29-31, 2017. Mark will lead a technical round table from 3:45 p.m. to 4:15 p.m. on March 30, 2017 entitled "Issues & Opportuni ... -
Geosyntec Practitioners Publish Alternative Water Use Paper for Journal of American Water Works Association
Tuesday, 10 January 2017
Geosyntec practitioners Dr. Zita L.T. Yu, P.E., Dr. Mark Hanna, P.E., and Ken Susilo, P.E., DWRE, CPSWQ co-authored an article with Joan Oppenheimer, BCEE and Dr. Allegra Da Silva, P.E. from MWH-Stantec entitled "Capturing Alternative Water Resources in Supplement Drinking Water Supply." The article is featured in the Total Wate ... -
Geosyntec Partners with Frank Gehry and Laurie Olin on L.A. River Visioning Plans
Tuesday, 13 September 2016
Mark Hanna (California) is working with architect Frank Gehry and landscape architect Laurie Olin on the L.A. River Visioning Plan by providing expertise as a water resource engineer. This team is working directly for the recently rebranded River LA, a non-profit working across publi ... -
Geosyntec to Present at CASQA
Thursday, 08 September 2016
Please join Geosyntec at the California Stormwater Quality Association (CASQA) Gold Stormwater Steward Sponsor for a meet and greet with our experts that are speaking at the following sessions and workshops in San Diego on September 11-14, 2016. Monday September 12 - CASQA Training Workshop Speakers L ... -
Zita Yu Publishes Graywater Treatment Paper for Journal - American Water Works Association
Tuesday, 05 July 2016
Zita Yu (California) has expanded Geosyntec's graywater practice capability in an article where she and her co-authors consider the performance and economic feasibility of residential bathroom graywater treatment. The research results were recently published in a paper entitled "Performance and Economic Evaluation of a Se ... -
Mark Hanna's Work for the LA River Featured in Pacific Standard Magazine
Wednesday, 11 May 2016
Mark Hanna (California) is featured in an article entitled "The Flood Keeper" written by Willy Blackmore in the Pacific Standard, Volume 9, Number 3, May/June 2016 Issue. The article highlights Geosyntec's central role in revitalizing the Los Angeles River. It covers different roles that Geosyntec filled including advis ...
