Principal
John Katahira, P.E.
John Katahira has 27 years of civil, sanitary, and environmental engineering experience and is a licensed civil engineer registered in the State of Hawaii. He earned a BS and MS in Civil Engineering and a MBA in Business Administration from the University of Hawaii at Manoa. He is responsible for the company’s planning services, which includes master planning, engineering feasibility studies, alternatives analysis reports, and environmental documents. He has received several honors for his individual achievements and contributions to the engineering community. In 2002, he received Pacific Business News’ Forty Under 40 Award; and in 2005, he was named Young Engineer of the Hawaii Council of Engineering Societies. He received one of 2009’s Three Outstanding Young Persons Award by the Rising Phoenix Jaycees; and in 2017, he was presented with the Outstanding Service Award by the University of Hawaii, College of Engineering. He served on the Board of Directors for the American Council of Engineering Companies of Hawaii from 2003-2013 and the Hawaii Water Environment Association from 2005-2009 and is currently the President for University of Hawaii at Manoa’s Engineering Alumni Association. He was recently elected to the Board of Directors at the Hawaii State Federal Credit Union.
Principal
Jason Lau, P.E, LEED® AP
Jason Lau has 30 years of experience on civil and sanitary engineering projects spanning Federal, State, City, and private sector projects in Hawaii and California. He earned a BS in Civil Engineering from Santa Clara University and is a licensed civil engineer registered in the State of Hawaii. In 2008, he became LEED Accredited for New Construction by the Green Building Certification Institute. His projects involve various civil engineering disciplines with emphasis on site development, utilities, erosion control, and roadway infrastructure. His experience and technical skills include coordination, design, feasibility studies, preliminary engineering reports, and preparation of specifications and cost estimates. He served on the Board of Directors for the American Public Works Association from 2009-2014.
Principal
Ian Arakaki, P.E., CCM
Ian Arakaki has 26 years of experience on civil, sanitary, and environmental projects. He earned a BS in Civil Engineering from Purdue University and is a licensed civil engineer registered in the State of Hawaii. In 2013, he became a Certified Construction Manager accredited by the Construction Management Association of America. His duties include master planning, engineering feasibility studies, alternatives analysis reports, and supervisory responsibilities for all construction management and observation projects. He served on the Board of Directors for the American Society of Civil Engineers from 2009-2015.
Principal
Kyle Kaneshiro, P.E., LEED® AP
Kyle Kaneshiro has 27 years of civil and sanitary engineering experience with an emphasis on site development and wastewater system design. He has an extensive background in the development of municipal and private facilities including pump stations and treatment plants, municipal and private utilities, drainage and stream studies, and government permits. He earned a BS in Civil Engineering from the University of California–Irvine and is a licensed civil engineer registered in the State of Hawaii. In 2009, he became LEED Accredited for New Construction by the Green Building Certification Institute. He has served on the Board of Directors for the American Council of Engineering Companies of Hawaii since 2019 and is currently the organization’s President-Elect.
Associate Principal
Eric Arakawa, P.E., LEED® AP
Eric Arakawa has 20 years of civil engineering design and construction experience. He earned a BS in Civil Engineering and a MBA in Business Administration from the University of Portland and is a licensed civil engineer registered in the State of Hawaii. His design experience includes roadway infrastructure, utilities design, and site development. He also serves as Construction Manager/Inspector for roadway and utility improvement projects. In 2016, he was named Young Engineer of the Year by the Hawaii Council of Engineering Societies. He has served on the Board of Directors for the American Society of Civil Engineers since 2014-2020.
Associate Principal
Joe Kwan, P.E., LEED® AP
Joe Kwan has 15 years of civil and sanitary engineering experience. He earned a BS in Civil Engineering from the University of Hawaii at Manoa and is a licensed civil engineer registered in the State of Hawaii. In 2009, he became LEED Accredited for New Construction by the Green Building Certification Institute. His expertise is in the planning, design, and construction management of wastewater collection systems, pump stations, force mains, and treatment facilities. He is also experienced with site development and utilities design.
Associate Principal
Jennifer Lim, P.E.
Jennifer Lim has 14 years of civil and sanitary engineering experience. She earned a BS in Civil Engineering from Tufts University and is a licensed civil engineer registered in the State of Hawaii. Her projects include planning, design, and management of water and wastewater systems, design-build projects, utilities design, site development, and irrigation systems.
Associate Principal
Trevor Vagay, P.E.
Trevor Vagay has 14 years of experience on civil and sanitary engineering projects. He earned a BS in Civil Engineering from the University of Hawaii at Manoa and is a licensed civil engineer registered in the State of Hawaii. His design projects include stormwater quality treatment, wastewater collection systems, utilities design, site development, residential subdivisions, and roadway improvements.
Project Manager
Yvonne Turro, P.E.
Yvonne Turro has 27 years of experience in the civil engineering field with an emphasis on land development and Low Impact Development (LID) improvements. She earned a BS in Civil Engineering from the U.S. Coast Guard Academy and is a licensed civil engineer registered in the State of Hawaii. Her projects include engineering feasibility studies, BMP design for stormwater pollution prevention, and residential and commercial site development.
Structural Engineer
Kevin Fong, P.E.
Kevin Fong has 16 years of experience on civil and structural engineering projects. He earned a BS in Civil Engineering from Stanford University and a MS in Structural Engineering from the University of California-San Diego. He is a licensed civil engineer registered in the State of Hawaii and California. His projects include stormwater management and compliance, water quality studies, and the repair/renovation/retrofit of existing structures.
Project Engineer
Jessica Agsalda, P.E.
Jessica Agsalda has 11 years of experience in civil engineering. She earned a BS in Civil Engineering and MS in Environmental Engineering from the University of Hawaii at Manoa and is a licensed civil engineer registered in the State of Hawaii. Her projects include subdivisions, potable water wells, reservoirs, wastewater infrastructure, utility design, and street rehabilitation.
Project Engineer
Brandon Whitaker, P.E.
Brandon Whitaker has 11 years of experience in civil engineering and construction management. He earned a BS in Civil Engineering from the University of Hawaii at Manoa and is a licensed civil engineer registered in the State of Hawaii. His projects include wastewater collections systems, force mains and pump stations, and stormwater pollution prevention.
Project Engineer
Justin Barnes, P.E.
Justin Barnes has 8 years of experience on civil and sanitary engineering projects. He earned a BS in Civil Engineering, Environmental Specialty, with a Minor in Mathematics from Seattle University and is a licensed civil engineer registered in the State of Hawaii. His projects include wastewater system design, stormwater pollution prevention, and construction management.
Project Engineer
Megan Ueno, P.E.
Megan Ueno has 10 years of civil engineering design and construction experience. She earned a BS in Civil Engineering from the University of Hawaii at Manoa and is a licensed civil engineer registered in the State of Hawaii. Her design experience includes roadway infrastructure, utilities design, and site development. She also served as Project Engineer for construction of new buildings and utility improvements.
Staff Engineer
Kip Asato, E.I.T.
Kip Asato has 6 years of experience on civil engineering projects. He earned a BS in Civil Engineering from Oregon State University. He received his Engineer-In-Training and Land Surveyor-In-Training certifications. His projects include wastewater system design, site development, and construction management.
Staff Engineer
Yared Sileshi, E.I.T.
Yared Sileshi earned a BS in Civil Engineering from Hawassa University Faculty of Technology. He has served as Project Engineer for over 8 years on construction projects involving the development of condominiums, office buildings, hospitals, and factories. He will assist on civil and sanitary engineering and construction management projects.
Staff Engineer
Davi Corcio-Alvarez, E.I.T.
Davi Corcio-Alvarez earned a BS in Civil Engineering from the University of Southern California. She has served as Project Engineer for over 7 years on construction projects involving condominium development and building renovations. She will assist on construction management projects.
Staff Engineer
Jerome Do
Jerome Do has 5 years of construction experience. He earned a BS in Civil Engineering from the University of Hawaii at Manoa and will assist on civil and sanitary engineering projects.
Staff Engineer
Briant Pham, E.I.T.
Briant Pham has 3 years of experience on civil engineering and construction projects. He earned a BS in Civil Engineering from the University of Hawaii at Manoa. His duties include management of wastewater projects, consultants, schedule, and cost; technical review of consultant and contractor submittals; and coordination with wastewater system and treatment operators.
Staff Engineer
Karen Yamashita, E.I.T.
Karen Yamashita is a recent graduate from the University of Notre Dame where she earned a BS in Environmental Engineering. She will assist on civil and sanitary engineering projects.
Staff Engineer
Ian Endrina, E.I.T.
Ian Endrina is a recent graduate from the University of Hawaii at Manoa where he earned a BS in Civil Engineering. He will assist on civil and sanitary engineering projects.
Staff Engineer
Ansen Nakasato, E.I.T.
Ansen Nakasato is a recent graduate from the University of Hawaii at Manoa where he earned a BS in Civil Engineering. He will assist on civil and sanitary engineering projects.
Staff Engineer
Gianne Constantino
Gianne Constantino is a recent graduate from the University of Hawaii at Manoa where she earned a BS in Civil Engineering. She will assist on civil and sanitary engineering and construction management projects.
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Staff Engineer
Kelli Katayama, E.I.T.
Kelli Katayama graduated from the University of Hawaii at Manoa where she earned a BS in Biological Engineering and General Science with a minor in Chemistry. Her duties include management of wastewater projects, consultants, schedule, and cost; technical review of consultant and contractor submittals; and coordination with wastewater system and treatment operators.
Staff Engineer
John Manuel
John Manuel is a recent graduate from the University of Hawaii at Manoa where he earned a BS in Civil and Environmental Engineering. He will assist on construction management projects.
Staff Engineer
Charls Gabriel
Charls Gabriel is a recent graduate from the University of Hawaii at Manoa where he earned a BS in Civil and Environmental Engineering. He will assist on construction management projects.
Environmental Planner
Claire Oshiro
Claire Oshiro has 24 years of experience as a planner on infrastructure projects for federal, state, and local agencies, as well as private entities. She received a BA in General Arts and Architecture from Pennsylvania State University. Her duties include research, editing, preparation and submittal of environmental assessments and environmental impact statements.
Environmental Planner
Jason Nakata, P.E.
Jason Nakata has 14 years of experience in environmental and land use compliance planning in support of civil infrastructure and development projects. He earned a BS in Civil Engineering and a MBA in Business Administration from the University of Hawaii at Manoa and is a licensed civil engineer registered in the State of Hawaii. His duties include preparation of Environmental Assessments; planning reports; NPDES, Special Management Area, Zoning and other discretionary permits; and consultation with Federal, State and County regulating agencies.
GIS Analyst/Staff Environmental Planner
Audrey Haerle
Audrey Haerle earned a BS in Environmental Studies from Hawaii Pacific University. She has 13 years of experience in stormwater sampling, analysis, and reporting to meet MS4 NPDES permit requirements and creating geodatabase and managing GIS shapefiles. She served on the Board of Directors for the Hawaii Water Environment Association since 2015 and is currently the organization’s National Director/Delegate. She has also served as the Public Education Committee Co-Chair since 2012.
Environmental Planner
Jenny Bernier
Jenny Bernier earned a BS in Global Environmental Science from the University of Hawaii at Manoa. She has 6 years of experience in environmental compliance and will assist with environmental permitting for stormwater and civil infrastructure projects and field and inspection work for construction management projects, including ESCP coordinator services.
Environmental Scientist
Susan Bryan
Susan Bryan earned a BS in Marine Biology from the University of Hawaii at Manoa. She has 8 years of experience in water quality sampling and analysis and environmental compliance. She will assist with environmental permitting for stormwater and civil infrastructure projects and field and inspection work for construction management projects, including ESCP coordinator services.
Senior Construction Inspector
David Goya
David Goya has over 42 years of construction experience including 15 years as a Construction Inspector for the City and County of Honolulu on roadway, drainage utility, and wastewater (treatment plants, pump stations, sewer lines) construction projects.
Construction Inspector
Paul Serikawa
Paul Serikawa has 13 years of construction inspection experience on stormwater pollution prevention projects, including construction oversight and administration services for the Department of Transportation’s Stormwater Management Plan and 3rd party stormwater inspections for the City and County of Honolulu’s NPDES Permit.
Construction Inspector
Michael Perry
Mike Perry has 7 years of experience providing construction oversight and administration services for the State Department of Transportation’s Stormwater Management Plan.
Construction Inspector
Scott Lai
Scott Lai has 7 years of experience on asphalt concrete paving and wastewater construction projects. His projects include removal and installation of new asphalt pavement, restriping of parking lots and roadways, and construction management. He received a BA in Sociology from the University of Hawaii at Manoa.
Construction Inspector
Aaron Katagihara
Aaron Katagihara has over 7 years of experience serving as Project Coordinator on asphalt concrete paving projects. His projects include removal and installation of new asphalt pavement and restriping of parking lots and roadways. He will assist on construction management projects.
Office Manager
Corey Arakaki
Corey Arakaki has 22 years of experience performing accounting and HR duties. She earned a BS in Business Administration with an emphasis in Accounting from the University of Northern Colorado and a Master of Accountancy from the University of Hawaii at Manoa. Her responsibilities include general ledger accounting through financial report preparation, tax reporting, HR management, and office management.
Administrative Assistant
Diane Lau
Diane Lau has 14 years of experience as an administrative assistant. She earned an AS in Culinary Arts from Kapiolani Community College. Her responsibilities include clerical duties and project assistance.
Administrative Assistant
Dana Lei
Dana Lei has 9 years of experience as an administrative assistant. She earned an AS in Pastry Arts from Kapiolani Community College. Her responsibilities include clerical duties and project assistance.
Administrative Assistant
Lisa Wong
Lisa Wong has over 24 years of customer service experience. Her responsibilities include clerical duties and project assistance.
Administrative Assistant
Kayla Manuel
Kayla Manuel 4 years of experience as an administrative assistant. She earned a BS in Business Administration from the University of Hawaii – West Oahu. Her responsibilities include clerical duties and project assistance.