Associate Vice President

Mr. Low has experience in a variety of transportation projects. His typical projects include highway design, roadway improvements, and general civil projects. His experience in the project development process includes participating in value analysis studies; managing the preparation of Project Approval/Environmental Documents (PA/ED) and plans, specifications, and estimates (PS&E); and performing construction inspection. Mr. Low is familiar with the standards and requirements for many governing agencies, which enables him to efficiently prepare the PS&E for projects throughout California. His drainage experience ranges from preparation of hydrology studies to designing systems for on-site and off-site drainage. In addition to designing hydromodification mitigation for project improvements, he has also designed hydrologic and hydraulic features of wetland mitigation sites.

Some of Mr. Low's recent projects include BART's Warm Springs Extension Project and Earthquake Safety Program; City of Oakland's As-needed Transportation Engineering Services Contract; Alameda County Transportation Commission's East Bay Greenway Project; City of Emeryville's Interstate 80/65th Street Bicycle/Pedestrian Bridge; and Solano Transportation Authority's Interstate 80 Redwood Parkway-Fairgrounds Drive Improvement Project.

Mr. Low received his bachelor's degree in Civil Engineering and Material Science from the University of California, Davis in 1989.

Civil Engineer, California: #51662


Senior Civil Engineer

Mr. Sekioka has been responsible for all phases of design, from the design development through the final design. He has worked on roadway design, utility engineering, site grading, drainage, sewer, water distribution system, and erosion control measures, and has prepared hydraulic, hydrologic and roadway calculations, cost estimates and scheduling for various projects. Mr. Sekioka also has experience coordinating with necessary agencies for approval of permits and plans.

Mr. Sekioka has managed the following civil projects for WRECO: Saint Marys Road Widening Project, Woodland Drive Sidewalk Improvements Project, Smith Street Crosswalk Improvements Project, and EBMUD Diablo Vista Pumping Plant Replacement and Pipeline Installation Project.

Mr. Sekioka received his bachelor's degree in Civil Engineering from the University of Hawaii in 1992.

Civil Engineer, California: #61122
Qualified SWPPP Developer and Practitioner (QSD/P), California, #735



Senior Civil Engineer

Mr. Vu has nearly two decades of engineering experience. He has experience managing transportation projects and is responsible for all phases of design including design criteria, schematic design, design development, and final design. Additionally, Mr. Vu has extensive knowledge of Caltrans’ design standards. He is also well versed in providing quantity take-offs, specifications, and cost estimates; and he has been responsible for government approval of permits and plans.

Some of his noteworthy projects include the East Light Rail Extension Projects in Santa Clara; Great Mall and Interstate 880 Park & Ride Lots in Milpitas; Route 101/Ralston Interchange Project in Redwood City; Wetland Mitigation Project in Foster City; North Livermore Rehabilitation Project in Alameda County; BART Traction Power Facility Replacement in San Francisco; and the Interstate 80 HOV Lanes Project in Fairfield. 

Mr. Vu received his bachelor’s degree in Civil Engineering from San Jose State University in 1993.

Civil Engineer: CA, #64499


Senior Civil Engineer

Mr. Chan has dedicated his 35+ year career to the public civil engineering sector with a special focus on sustainability and constructability. Prior to joining WRECO, he worked with the cities of Alameda, Fremont, San Bruno, and San Mateo. He was the senior engineer for both the maintenance engineering and Capital Improvements Program (CIP) divisions in his previous positions. As a project manager, Mr. Chan provides support in project planning, development, program funding, constructability review, project estimating, and project deliveries. In addition, he has extensive experience with private development plan check reviews and familiarity with Caltrans’ Local Assistance Program.

Some of his recent projects for the City of San Mateo include management and development of the Street Reconstruction Program, Annual Citywide Street Rehabilitation Program, and Bridge Maintenance Program.  Furthermore, he managed the design and construction for the El Camino Real at 31st Avenue Streetscape Improvements Project, Delaware Street at 16th Avenue Complete Street Project, 22nd Avenue Street Reconstruction Project, and 25th Avenue Underground Utility Project.

Mr. Chan is a graduate from the University of California, Berkeley, with a degree in civil engineering.

Civil Engineer: CA, #44669


Senior Civil Engineer

Mr. O’Kane has more than 20 years of experience in civil site design including complete streets, storm drain improvements, utility design, pavement rehabilitation projects, American with Disabilities Act (ADA) compliance, as well as project management, construction inspection, and construction management. Mr. O’Kane has also provided staff augmentation to public agencies by overseeing construction and providing plan reviews.


As a Project Manager, Mr. O’Kane manages the design; prepares the technical specifications and cost estimates; prepares the bid package for advertising; and provides bid and construction assistance. Mr. O’Kane is also experienced with Caltrans Local Assistance procedures including managing the National Environmental Policy Act (NEPA) environmental clearance, right-of-way certification, and preparation of submittal packages to Caltrans for federal authorization.

Some of his major projects include the Bay Area Rapid Transit (BART) Pedestrian and Bike Connectivity Project in Pittsburg, CA; Highway Safety Improvement Program (HSIP) Sonoma Boulevard Project in Vallejo, CA; and the Hearst Avenue Complete Street Project in Berkeley, CA.

Mr. O’Kane received his B.S. in Civil Engineering from Virginia Tech in 1999.

Civil Engineer: CA, #73275

QSD/P: CA, #25339






Vice President


Ms. Ochoa is a veteran and expert in the fields of stormwater management and hydraulics. She assisted Caltrans Headquarters, Office of Storm Water Management - Design, in their efforts to update the Caltrans Storm Water Quality Handbook: Project Planning and Design Guide and Storm Water Data Report Workshop Materials with new low impact development (LID) requirements. Additionally, Ms. Ochoa assisted in the statewide training of Caltrans staff on LID. Prior to joining WRECO, she was the Caltrans District 4 Storm Water Coordinator. She was responsible for the overall management of the Storm Water Program for the District and managed the District's projects in compliance with the National Pollutant Discharge Elimination System Permit from the State Water Resources Control Board. She also negotiated stormwater permit compliance with the Regional Water Quality Control Boards for all District projects. 

Ms. Ochoa is WRECO's Project Manager for the following projects: Caltrans District 4 Water Quality and Technical Services Contract, US 101 Express Lanes Project, Interstate 680 Northbound Express Lane Project, and Bay Area Stormwater Management Agencies Association (BASMAA) Engineering Design Services for Urban Runoff Treatment Retrofits. 

Ms. Ochoa received her bachelor's degree in Civil Engineering at the University of California, Davis in 1992.


Civil Engineer, California: #55279
Qualified SWPPP Developer and Practitioner (QSD/P), California: #178
Construction General Permit QSD/P Trainer of Record, California
HAZWOPER Certified, California: #754834714


Senior Civil Engineer

Ms. Cheng has 19 years of diverse experience in civil engineering and environmental remediation. She has a strong technical background in engineering design, problem solving, analysis, and review. Ms. Cheng is a proven engineering project manager, successfully delivering projects on time and within budget by utilizing skillful planning, efficient contractor and vendor management, and innovative application of technologies. Additionally, she promotes a collaborative atmosphere with internal and external partners and stakeholders to ensure project productivity. 

Some of her notable project experiences include:

  • Operable Unit 2 Groundwater Treatment Plant Relocation at the Former Fort Ord for the U.S. Army Corps of Engineers, where she provided the conceptual design and engineering design study for the relocation of a 1,600 gallon-per-minute groundwater treatment plant.

  • Operable Unit Carbon Tetrachloride Plume Remedial Action at the Former Fort Ord for the U.S. Army Corps of Engineers, where she led the design-build and operation of a modular treatment system. She successfully completed shallow aquifer treatment of a 1.4-mile-long carbon tetrachloride plume utilizing this engineered system to enhance in-situ bioremediation at six locations over the plume.

  • Crows Landing Flight Facility for NASA, where she oversaw the strategic excavation, tracking, and off-site disposal of approximately 15,000 tons of waste and debris for the U.S. Navy. She was also involved in the off-site groundwater investigation using direct-push and sonic drilling technology, as well as in providing quarterly evaluation of the natural attenuation of petroleum hydrocarbons and chlorinated solvents in groundwater.

  • Former Naval Air Station Alameda Point for U.S. Navy, where she prepared work plans, environmental protection plans, specifications, and permits, and provided design and procurement support. Some of these activities include excavation and off-site disposal of waste, soil vapor extraction system installations, industrial waste treatment plant removals, and drilling.


Ms. Cheng received her bachelor's degree in Civil Engineering from California State Polytechnic University, Pomona. Her professional affiliations include the American Society of Civil Engineers. 

Civil Engineer, California: #69919



Project Manager

Mr. Chin has more than 14 years of experience in civil and environmental engineering studies. He assisted Caltrans Headquarters – Stormwater in developing the most recent Project Planning and Design Guide (PPDG) based on the latest permit requirements and prepared sample Stormwater Data Reports for use along with the PPDG. He develops reports and presentations in the fields of water quality and stormwater, including preparing Water Quality Assessment Reports, Stormwater Data Reports, and Conceptual Stormwater Pollution Prevention Plans (CSWPPP). He also develops plans, specifications, and estimates, and he provides construction support for roadway drainage projects. Mr. Chin uses his experience in both stormwater and drainage design to meet current regulations for stormwater treatment, low-impact development, and hydromodification management as well as the design of bioretention facilities, media filters, and other treatment devices.


Mr. Chin received his bachelor's degree in Environmental Engineering at the University of California, Riverside, in 2005.



Senior Environmental Scientist

Ms. Boschen has more than 21 years of experience in stormwater management and regulatory compliance. Her experience includes ensuring compliance with the California Construction General Permit (CGP) and Industrial General Permit as well as permit writing and negotiations, facilitation, and training. Ms. Boschen has reviewed and assisted in the preparation of Stormwater Pollution Prevention Plans (SWPPP) and Water Pollution Control Plans (WPCP), and conducted CGP compliance assistance inspections. She also assisted with the development of Green Infrastructure Plans for compliance with the San Francisco Bay Regional Quality Control Board (RWQCB) Municipal Regional Stormwater Permit.

Prior to joining WRECO, Ms. Boschen worked for the San Francisco Bay RWQCB. Her roles included supervising the Industrial and Construction Stormwater Programs, supervising the National Pollutant Discharge Elimination System (NPDES) Surface Water Enforcement Unit, and acting as the lead staff assigned to Contra Costa County municipal stormwater and Clean Water Act Section 401 Water Quality Certification work. She also worked for the San Diego RWQCB, where she wrote permits and enforcement actions for sewage-related surface water discharges.

Training: Training in Facilitation, Meeting Management, and Collaborative Process Design: Canadian Institute of Cultural Affairs, Organizational Transformation: Facilitating Change in Whole Systems, 2010; International Association of Facilitators, North America Chapter: Annual Meeting, 2010; CONCUR for Water Board Training Academy, Advanced Course in Negotiating and Facilitating in Collaborative Processes, 2005; CONCUR for Water Board Training Academy: Negotiating and Facilitating in Collaborative Processes, 2003; CONCUR for Water Board Training Academy: Designing an Effective Stakeholder Involvement Process, 2003; and CONCUR for Water Board Training Academy: Developing, Managing, and Using Scientific Information Effectively, 2003.

She received a masters in Soil and Water Sciences from University of California, Riverside, and a bachelors in Biology from Oberlin College.

Qualified Industrial Stormwater Practitioner (QISP), California: #01214






Mr. Kitzmann has more than 21 years of experience in geology and more than 19 years of experience in geotechnical engineering. His technical background includes a wide range of topics from geology and civil engineering to mechanical engineering. 

His expertise is derived from working in all of California's geomorphic provinces, where he gained significant experience in a wide variety of projects and site characteristics. Some of his particular areas of expertise include bridge foundations, retaining structures, reinforced embankments, landslide stabilization, storm damage studies, roadway design, and instrumentation. 

Mr. Kitzmann has worked on more than 100 bridge projects and more than 200 landslide/storm damage projects in 44 of the 58 counties in California. Some of his notable project experiences include:

  • Mud Creek Bridge in the City of Chico, where he developed an emergency scour repair that included possibly the first use of partially grouted rip-rap in California.

  • Martins Ferry Bridge in Humboldt County, where he oversaw the seismic retrofit and emergency repairs of an existing bridge, which included stabilization of a large landslide.

  • Schulties Road Slipout in Santa Cruz County, where he developed a storm damage repair that minimized costs, avoided the removal of multiple mature redwood trees, and included the replacement of a damaged culvert.

  • Wohler Road Bridge in Sonoma County, where he oversaw the design of new foundations for the seismic retrofit of the historic bridge over Russian River.


Mr. Kitzmann received his bachelor's degree in Geology from Old Dominion University in Norfolk, Virginia. His professional affiliations include the American Public Works Association (APWA), American Society of Civil Engineers (ASCE), and CalGEO. 

Civil Engineer, California: #81410
Professional Geologist, California: #7920
Certified Engineering Geologist, California: #2412


Senior Geotechnical Engineer

Before joining WRECO, Mr. Taber was the President and a supervising geotechnical engineer at Taber Consultants. Since joining WRECO, he performs quality control and assists with report development and geotechnical analysis. Throughout Mr. Taber’s 40+ years of professional services, he has been continually involved with transportation-related facility and structure projects. His experience includes hundreds of studies for bridge foundations, seismic retrofits, roadways, and facilities for county and state agencies.


Mr. Taber earned his bachelor’s degree in civil engineering at University of California, Davis, in 1976. He also completed coursework in geology at California State University, Sacramento.


Civil Engineer: CA, #30920

Geotechnical Engineer: CA, #816


Senior Geologist

Ms. McAssey is a professional geologist with more than 30 years of environmental consulting experience working on Phase I/II Environmental Site Assessments (ESA), Initial Site Assessments (ISA), Environmental Impact Report (EIR)/Preliminary Endangerment Assessment (PEA) Geology sections for CEQA, hazardous materials management, groundwater testing/quality/remediation, Storm Water Pollution Prevention Plan (SWPPP) amendment reporting, and soil mineral assessment projects. She is an expert in conducting ESAs for projects including retail gas stations, petroleum refineries, and tank farms; co-generation and power plants; Caltrans roadways, Highway Safety Improvement Program (HSIP) intersection improvement projects, and bridges; BART facilities; and undeveloped, commercial, industrial, and residential properties. In addition, she performs aerially deposited lead (ADL) and naturally occurring asbestos (NOA) studies.


Ms. McAssey has a master’s degree in Geology from California State University, Northridge, and a bachelors in Geology from San Diego State University.

Professional Geologist: CA #8132

Qualified SWPPP Developer and Practitioner (QSD/P): CA, #24259


Senior Geologist

Mr. Smith has spent more than two decades providing geological services in support of public infrastructure projects with an emphasis on environmental remediation, Environmental Site Assessments (ESA), Preliminary Site Investigations (PSI)/Assessments, and site inspections. His expertise spans project planning, field sampling, evaluation and analyses, project management, and reporting. Mr. Smith has a solid track record of delivering complex and/or vast projects on time and under budget. His specialties also include Field Sampling Plans (FSP), Sampling and Analysis Plans (SAP), and Quality Assurance Project Plans (QAPP); Health and Safety Plans (HASP); Site Hazardous Ranking System (HRS) Evaluations; Spatial Analysis Using Geographic Information Systems (GIS); and Engineering Evaluations and Cost Analysis (EECA) Investigations. Additionally, Mr. Smith is a GIS specialist, offering mapping and spatial analyses. 

Some of his major projects include the U.S. 101/State Route 25 Interchange Improvement Project PSI in Gilroy, CA; Upper York Creek Ecosystem Restoration and Aquatic Habitat Enhancement Project Naturally Occurring Asbestos (NOA) Study in Saint Helena, CA; and San Mateo County Smart Corridor Initial Site Assessment (ISA) in Daly City, Colma, and Brisbane, San Mateo County, CA.

Mr. Smith received his B.S. in Geology from San Francisco State University.


Professional Geologist: CA, #9313

Certifications/Training: 40 Hour HAZWOPER, 8-hour refresher, OSHA Hazardous Waste Supervisor





Associate Vice President

Mr. Sewell has experience in a number of projects involving drainage, water supply issues, and hydraulic modeling of rivers and floodplains. He has wide-ranging field experience in a variety of environmental, hydraulic and hydrologic projects. His typical projects include floodplain analysis and delineation, drainage design, bridge hydraulics, scour analyses, wetland mitigation, water quality assessment, and water rate measurement and availability. He has been involved in the analysis and assessment of large-scale reservoir fertilization and restoration programs for fisheries improvement. He has developed and expanded a versatile GIS/GPS based inventory system used in pilot testing of a highway information database. 

Mr. Sewell was involved with the Interstate-80 (I-80)/North Texas Street Interchange Project and the State Route 128 Bank Protection and Restoration Project, both of which received accolades. In 2010, Mr. Sewell was part of the winning team that received Solano County Transportation Authority's Project of the Year for 2010 award for the I-80/North Texas Street Interchange Project. Also in 2010, he completed the design package for the State Route 128 Bank Protection and Restoration Project for Caltrans District 4 in two weeks. The design addressed the environmental permitting agencies' requirement of a bioengineered design that limited disturbance to the scarp. The project received Caltrans' 2011 Excellence in Transportation Award. 

Mr. Sewell received his bachelor's degree in Civil and Environmental Engineering from the University of British Columbia in 2000.

Civil Engineer, California: #64807

Civil Engineer, Washington: #43402
Qualified SWPPP Developer and Practitioner (QSD/P), California: #618



Senior Lead Civil Engineer

Ms. Abrams has experience with hydromodification analysis and mitigation design, stormwater quality analysis, and hydrologic and hydraulic studies and design. Her project experience includes stormwater quality mitigation design, drainage design, grading design, bridge hydraulic studies, floodplain studies, and coastal wave climate and erosion studies. She prepares drainage and erosion control plan sets, specifications, and cost estimates for numerous projects. She has been involved in laboratory analyses of watershed scale subsurface water flow and predicted surface saturation, erosion barriers, and turbulence caused by macrophytes. Ms. Abrams is adept at creating representative hydrologic models and attends training sessions to stay up-to-date with new technologies and methods. 

Ms. Abram's notable projects include BART's Warm Springs Extension Project and the Gleason Beach Shoreline Erosion Study and Highway 1 Relocation Project. 

Ms. Abrams received her bachelor's degrees in Civil Engineering and Environmental Engineering from Cornell University in 2007.

Civil Engineer, California: #77782



Ms. Brooks has experience in a variety of stormwater management projects. She has worked on and managed projects including watershed studies, master plans, pipe and channel design, policy development, and low-impact development (LID) projects. In her work, she has gained extensive knowledge of complex hydrologic and hydraulic systems. Ms. Brooks' projects have utilized several stormwater programs, such as HEC-HMS, HEC-RAS, EPA SWMM, XP SWMM, InfoWorks, and StormCAD.

Ms. Brooks earned her bachelor’s degree in Civil Engineering at Texas A&M University in 2005.

Civil Engineer: CA, #88686

Envision Sustainability Professional

Certified Floodplain Manager



Senior Civil Engineer

Mr. Periketi has experience in a variety of civil engineering projects. His professional experience involves drainage analyses and design including hydrology and hydraulics, stormwater best management practices (BMP) design, and potable water distribution systems and sanitary sewer systems design. His primary project focuses are on storm drain systems, BMP design, and utility design. In addition, Mr. Periketi is skilled at developing Drainage Reports and Storm Water Data Reports for various projects. 

Mr. Periketi worked on the Presidio Parkway Project, which proposed to replace the southern access road to the Golden Gate Bridge. In addition, he contributed to the Silicon Valley Berryessa Extension Project and Silicon Valley Rapid Transit Project, both of which will extend BART coverage to the City of San Jose. 

Mr. Periketi received his master's degree in Environmental Engineering from the University of Mississippi in 2005. He received his bachelor's degree in Civil Engineering from Osmania University, Hyderabad, Andhra Pradesh, India in 2002.


Civil Engineer, California: #78270
Qualified SWPPP Developer and Practitioner (QSD/P), California: #21419


Senior Civil Engineer

Mr. Tsurushita has more than 13 years of experience with projects involving hydrology, hydraulics, floodplains, bridge hydraulics, and scour studies. His extensive experience includes utilizing computer software to perform steady/unsteady, 1-D/2-D hydraulic and hydrologic analysis and design (HEC-RAS, HEC-HMS, Hydraflow, FLO-2D, InfoWorks ICM, FESWMS, and SRH-2D). Mr. Tsurushita is adept at creating representative hydraulic models and attends training sessions to stay up-to-date with new technologies and methods. Some of Mr. Tsurushita’s notable projects include the State Route 128 Russian River Emergency Bank Stabilization, US 101 Auxiliary Lanes, and Los Osos Valley Road/US 101 Interchange Improvement.


Mr. Tsurushita received his bachelor’s degrees in Civil and Environmental Engineering from University of California, Davis, in 2007.


Civil Engineer, CA: #81167


Project Manager

Mr. Yim has 14 years of experience in roadway drainage and water quality design, including developing repair solutions for storm damage projects. In addition, Mr. Yim has vast experience providing services for construction-phase projects such as performing construction inspection; ensuring Construction General Permit (CGP) compliance (preparing Permit Registration Documents and SWPPP amendments); preparing contract change orders (CCOs) for water quality compliance; designing erosion control and BMPs; preparing Water Pollution Control Plans; performing environmental sampling and inspections to determine whether BMPs were constructed properly; and preparing Resident Engineer (RE) files and Stormwater Information Handouts. Mr. Yim’s notable projects include the Marin-Sonoma Narrows Segment B2 Project, Surfer’s Beach Shoreline Protection Project, Belmont Creek Watershed Study, and the Fresno to Bakersfield segment of the California High-Speed Rail Project.


Mr. Yim earned his bachelors in Civil Engineering at San Francisco State University in 2010.

Engineer-in-Training: CA, #124572

Certified Professional in Storm Water Quality: #0849 (nationwide)

Qualified SWPPP Developer and Practitioner (QSD/P): CA, #22771



Senior Civil Designer

Mr. Tudd has spent approximately two decades performing civil, environmental, and hydraulic studies for the development of infrastructure projects throughout California. His experience spans highways/roadways, bridges, environmental restoration projects, flooding mitigation projects, and river/creek analysis. He specializes in designing effective drainage, water quality protection, and stormwater management plans and systems that meet local, state, and federal regulations. He has also worked on creek, riparian, and wetland restoration projects. His hydraulic and scientific experience includes delivering projects using HEC-RAS, HEC-HMS, HEC-1, HEC-2, HYDRO, HYDRAIN, Peak FQ, Hydraflow, HDS-5, Basin Sizer, and RUSLE2.

Some of his recent projects include the Santa Cruz Highway 9 Drainage Improvement Project, providing staff augmentation services under our Caltrans District 10 Hydraulic Design Services On-call, the State Route 99 Atwater Rehabilitation and Auxiliary Lanes Project, the State Route 49 Mariposa Rehabilitation Project, and the State Route 41 Drainage System Restoration/Culvert Rehabilitation Project. 

Mr. Tudd earned his B.A. in Environmental Science at University of California, Berkeley.


Senior Civil Engineer

Mr. Leary is a licensed professional civil engineer specializing in hydrology, hydraulics, and water quality management. He is experienced in managing multi-discipline, multi-office surface water projects and providing hydraulics/drainage and stormwater management design for multi-modal transportation corridors and bridge projects. He has worked on projects for local cities, counties, regional transportation agencies, Caltrans, and the U.S. Army Corps of Engineers. His expertise includes providing drainage and water quality analysis, design, and reports; plan production for drainage improvements; plan reviews for municipal development service departments; and Qualified Stormwater Pollution Prevention Plan (SWPPP) Developer/Practitioner (QSD/P) services, stormwater management plans, and best management practice designs for permit compliance.


Some of his recent projects include the San Joaquin Regional Railroad Commission’s Express Valley Rail Project - Sacramento Extension from Lathrop to Natomas, the Altamont Corridor Express extension to Merced, State Route 198 culvert repair and rehabilitation project for Caltrans District 6, and Lewelling Boulevard and Meekland Avenue streetscape projects for Almada County.


Mr. Leary received his M.S. in Environmental Engineering and B.S. in Natural Science from Loyola Marymount University.

Civil Engineer: CA, #87309